CONSTRUCTION METHOD STATEMENTGMS BE

CONSTRUCTION METHOD STATEMENT
GMS BEN LUC – LONG THANH EXPRESSWAY PROJECT
Package A3: Km16+600 – Km18+713.5

CONTENTS
PART I - GENERAL SCHEDULE
I. Bidder’s familiarity and understanding of construction site of the Project and Package
II. Electric, water and fuel supply plan
III. Major sources of material supply
IV. Major sources of workmen supply
V. Traffic organization and temporary traffic control
1. Organization chart for traffic control of Contractor
2. Traffic control method
VI. Project safety and security plan
1. Safety Control Plan
1.1. Contractor’s organization chart
1.2. Safety insurance methods
2. Security Control Plan
VII. Environment management plan
1. Contractor’s organization
1.1. Contractor’s Organization Chart
1.2. Duty of charge-in staffs
1.3. Duty of environment staffs of construction teams:
2. Environment Protection Measures
2.1. Air
2.2. Water
2.3. Noise
2.4. Waste
2.5. Dangerous goods and chemical
2.6. Ecological resources, and valued sources of archaeology and history
2.7. Procedures in emergency case on environment
2.8. Site layout
PART II - CONSTRUCTION METHOD
A. General construction method
I. Construction site layout
II. Scope of works
III. Technical method
IV. General construction method
1. Site layout
2. Construction layout
3. Construction sequences
B. Detail construction method of work items
I. Bridge construction method
1. General introduction
1.1. Ba Lao bridge
1.2. Viaduct No.1 bridge
2. Arrangement of construction units for bridge
3. Site arrangement
3.1. Site of Ba Lao bridge
3.2. Site of Viaduct No.1 bridge
4. Main construction method for Bridge
4.1. Ba Lao bridge
4.2. Viaduct No.1 bridge
5. Construction method of substructure (abutments, piers)
5.1. Construction method of abutment or pier on land, using foundation pit without cofferdam
5.2. Construction method of pier in water, using foundation pit with steel sheet pile (or steel pipe pile) cofferdam and bottom sealed concrete
6. Construction method of superstructure
6.1. Ba Lao bridge
6.2. Viaduct No.1 bridge
7. General construction works
7.1. Construction work for concrete and reinforcement concrete
7.2. Construction works of bored pile on land
7.3. Construction of bore pile in water
7.4. Port tensioned pre-stressed R.C Super T girder casting technology (l=38.3m, 31.3m and 28.3m)
7.5. Balance cantilever casting technology (55+90+55)m
7.6. Construction of box girder according to method of casting in situ on scaffolding (32.5+50+32.5)m
II. Road construction
1. Preparation work
2. Method of embankment construction
2.1. Requirement for material
2.2. Requirements for construction equipment and labor
2.3. Common excavation and unsuitable excavation
2.4. Embankment Construction Method
2.5. Soft soil improvement
2.5.1. By PVD
2.5.2. By PHD
2.5.3. By Soil cement colimn.
3. Drainage system
3.1. Requirements for material
3.2. Requirement for construction plant, equipment and labor
3.3. Construction of pipe culvert
4. Sub-base and Base
4.1. Requirements for material
4.2. Requirements for construction plant, equipment and labor
4.3. Construction of base course
5. Asphalt construction pavement
5.1. Requirements for material
5.2. Requirements for equipment and labor
5.3. Construction sequence of asphalt concrete
5.4. Prime coat and tack coat
5.5. Asphalt Treatment Base course at 13cm thickness
5.6. AC binder course at 7cm thickness
5.7. AC surface course at 5cm thickness
5.8. Rough Asphalt course at 3cm thickness
5.9. Double bituminous surface treatment (DBST).
5.9.1. Requirements for material.
5.9.2. Requirements for plant, equipment and labor.
5.9.3. Construction method.

PART I - GENERAL SCHEDULE
I. Bidder’s familiarity and understanding of construction site:
The GMS Ben Luc – Long Thanh expressway project is a part of the North-South Expressway. It is passing through Ho Chi Mnh City, Dong Nai Province and Long An Province…
The Ben Luc – Long Thanh expressway is about 57.1km long. This’s connected Ben Luc District, Ho Chi Minh City with Long Thanh District, Dong Nai Province.
+ The Start point: Km0+600, Ben Luc District, Ho Chi Minh City.
+ The End point: Km57+700, Long Thanh District, Dong Nai Province.
Package A3 is from Km16+600 (Ending point Contract Package A2-2) to Km18+713.5 (beginning point Contract Package A4), total length of this package is 2,113.5m. The site is located at Da Phuoc commune, Binh Chanh district and Nhon Duc commune, Nha Be district of Ho Chi Minh City.
Main technical properties of Project
+ Road classification: Expressway, Type A.
+ Design speed: Expressway 120km/h.
+ Lanes: 4 lanes (Ultimate stage: widened to 8 lanes).
+ Width: Road section 25.0m; Bridge section 21.75m.
1. Topography condition
In the Package A3, the Expressway runs area with topographical condition is rather relatively flat, passing through paddy fields, canals and big river (Can Giuoc river)…
2. Geological condition
Geological at area of this Package have some layer as:
- Layer K1: Filling soil: mud – clay with plants.
- Layer K1: Top soil: Silty sand (SM).
- Layer 1a: Elastic silt, greenish grey, blackish grey.
- Layer TK1a: Clayey Sandy with gravel, loose medium dense sometime very dense (SC).
- Layer 1b: Elastic silt (mud), greenish grey, dark, sandwich thin sand layer.
- Layer 1c: Elastic silt – fat clay, greenish grey, dark, very soft.
- Layer 2a: Lean clay - Fat clay, dark and greenish grey, soft to firm, somewhere medium stiff or mixed organic.
- Layer 2b: Lean clay – Lean clay with sandy, dark and greenish grey, medium stiff – stiff, somewhere very stiff – hard.
- Layer TK2b: Clayey sand with silt, yellowish – greenish grey, medium dense – dense, sometimes very dense.
- Layer 2c: Fat clay - elastic silt, greenish grey, yellowish grey stiff – very stiff, sometimes is hard.
- Layer 3a: Clayey sand, poorly graded sand, whitish – yellowish grey, greenish grey, loose – medium dense
- Layer 3b: Clayey sand, poorly graded sand, whitish yellowish grey, medium dense – dense, sandwich with clay – silt lens.
- Layer TK3b: Lean clay – Fat clay, greenish grey, stiff – very stiff, sometimes medium stiff.
- Layer 3c: Clayey sand, poorly graded sand, whitish – yellowish grey, greenish grey, sometimes with gravel, dense – verry dense.
- Layer 4a: Lean clay, yellowish grey, yellowish brown, medium stiff – stiff.
- Layer 4b: Lean clay, yellowish – greenish grey, yellowish brown, stiff – very stiff, sometimes is hard – very hard.
- Layer 4c: Lean clay, yellowish – greenish grey, yellowish brown stiff – very stiff, sometimes is hard – very hard, mixed sand in some where.
- Layer TK4c: Clayey sand, yellowish – greenish grey, whitish grey, dense.
- Layer 5a: Silty clayed sand yellowish – greenish grey, dense.
- Layer 5b: Clayey sand, Poorly graded sand, yellowish – greenish grey, whitish grey, dense – very dense.
3. Scope of works:
The GMS Ben Luc – Long Thanh Expressway Project Package A3 is executed in a 36 months with the main work items:
- Construct new road. Total length of road and bridge is 2,113.5m on the flat area base on the embankment works.
- Construct frontage road system.
- Construct 2 bridges (Ba Lao and Viaduct No.1 bridge).
- Construct drainage pipe culverts.
- After studying carefully Bidding Document and detailed investigation of actual site conditions, it is found that.
- Technical:
- Some un-complex technologies are applied to the package such as: soft soil treatment by, super T girder, bored pile 1.2m and 1.5m, cantilever box girder, cast in place pre-stressed box girder on scaffolding…
- Construction Schedule:
- The execution time is 36 months which requires the Contractor shall be in ready manner, his mobilization labor and equipment will be executed as short as possible. The Contractor has powerful reserved labor force enough to further mobilize as necessary to speed up the progress.
- Construction conditions:
- Construction conditions are relatively favorable.
- The supply of materials for package is favorable, because sand borrow pits are not so much far. The traffic in and out the package area is favorable.
- With advanced technology and technical capacity, fresh and profuse finance, as professional construction company, our Contractor firmly believes that we will excellently fulfill this package in accordance with the required schedule, good quality and high aesthetics.
II. Electric, water and fuel supply plan:
- Power sourse:
- The contractor will contact with Ho Chi Minh City electric to buy power from low-voltage stations which are available nearby the site or the contractor will build new low-voltage station to service for construction site and living.
- Besides, to take initiative in electric source, the contractor will reserve generators in case of public power cut
- Water source for construction works and living:
- The contractor will buy from the water supply factories under the area of Ho Chi Minh City and use drilled well at site and water will be processed freshly.
- Fuel source for construction:
- The contractor will take initiative to buy at petrol stations nearby the construction site or the prestigious suppliers on the market such as Petrolimex. The contractor has fuel reserve method by tank.
III. Major sources of material supply:
- Black sand (fine sand):
- Fine sand is bought at the supply such as Tien river… transported by waterway to the site.
- Stone material:
- Stone material will be taken from the following quarries: Stone for concrete, asphalt concrete, crushed stone: taken from Dong Nai, Binh Duong, Vung Tau province… and transported by waterway to the site.
- Yellow sand (coarse sand):
- Coarse sand for asphalt concrete, cement concrete, sand blanket… taken from Dong Nai, Binh Duong, Vung Tau province… and then transported by water ways to the site.
- Soil for embankment:
- Taken from Dong Nai, Binh Duong, Vung Tau province… transported by waterway to the site.
- Bitumen:
- Dense bitumen with 60/70 pen. Is bought from Ho Chi Minh City

CONSTRUCTION METHOD STATEMENT
GMS BEN LUC – LONG THANH EXPRESSWAY PROJECT
Package A3: Km16+600 – Km18+713.5

CONTENTS
PART I - GENERAL SCHEDULE
I. Bidder’s familiarity and understanding of construction site of the Project and Package
II. Electric, water and fuel supply plan
III. Major sources of material supply
IV. Major sources of workmen supply
V. Traffic organization and temporary traffic control
1. Organization chart for traffic control of Contractor
2. Traffic control method
VI. Project safety and security plan
1. Safety Control Plan
1.1. Contractor’s organization chart
1.2. Safety insurance methods
2. Security Control Plan
VII. Environment management plan
1. Contractor’s organization
1.1. Contractor’s Organization Chart
1.2. Duty of charge-in staffs
1.3. Duty of environment staffs of construction teams:
2. Environment Protection Measures
2.1. Air
2.2. Water
2.3. Noise
2.4. Waste
2.5. Dangerous goods and chemical
2.6. Ecological resources, and valued sources of archaeology and history
2.7. Procedures in emergency case on environment
2.8. Site layout
PART II - CONSTRUCTION METHOD
A. General construction method
I. Construction site layout
II. Scope of works
III. Technical method
IV. General construction method
1. Site layout
2. Construction layout
3. Construction sequences
B. Detail construction method of work items
I. Bridge construction method
1. General introduction
1.1. Ba Lao bridge
1.2. Viaduct No.1 bridge
2. Arrangement of construction units for bridge
3. Site arrangement
3.1. Site of Ba Lao bridge
3.2. Site of Viaduct No.1 bridge
4. Main construction method for Bridge
4.1. Ba Lao bridge
4.2. Viaduct No.1 bridge
5. Construction method of substructure (abutments, piers)
5.1. Construction method of abutment or pier on land, using foundation pit without cofferdam
5.2. Construction method of pier in water, using foundation pit with steel sheet pile (or steel pipe pile) cofferdam and bottom sealed concrete
6. Construction method of superstructure
6.1. Ba Lao bridge
6.2. Viaduct No.1 bridge
7. General construction works
7.1. Construction work for concrete and reinforcement concrete
7.2. Construction works of bored pile on land
7.3. Construction of bore pile in water
7.4. Port tensioned pre-stressed R.C Super T girder casting technology (l=38.3m, 31.3m and 28.3m)
7.5. Balance cantilever casting technology (55+90+55)m
7.6. Construction of box girder according to method of casting in situ on scaffolding (32.5+50+32.5)m
II. Road construction
1. Preparation work
2. Method of embankment construction
2.1. Requirement for material
2.2. Requirements for construction equipment and labor
2.3. Common excavation and unsuitable excavation
2.4. Embankment Construction Method
2.5. Soft soil improvement
2.5.1. By PVD
2.5.2. By PHD
2.5.3. By Soil cement colimn.
3. Drainage system
3.1. Requirements for material
3.2. Requirement for construction plant, equipment and labor
3.3. Construction of pipe culvert
4. Sub-base and Base
4.1. Requirements for material
4.2. Requirements for construction plant, equipment and labor
 4.3. Construction of base course
5. Asphalt construction pavement
5.1. Requirements for material
5.2. Requirements for equipment and labor
5.3. Construction sequence of asphalt concrete
5.4. Prime coat and tack coat
5.5. Asphalt Treatment Base course at 13cm thickness
5.6. AC binder course at 7cm thickness
5.7. AC surface course at 5cm thickness
5.8. Rough Asphalt course at 3cm thickness
5.9. Double bituminous surface treatment (DBST).
 5.9.1. Requirements for material.
 5.9.2. Requirements for plant, equipment and labor.
 5.9.3. Construction method.
 
PART I - GENERAL SCHEDULE
I. Bidder’s familiarity and understanding of construction site:
The GMS Ben Luc – Long Thanh expressway project is a part of the North-South Expressway. It is passing through Ho Chi Mnh City, Dong Nai Province and Long An Province…
The Ben Luc – Long Thanh expressway is about 57.1km long. This’s connected Ben Luc District, Ho Chi Minh City with Long Thanh District, Dong Nai Province.
+ The Start point: Km0+600, Ben Luc District, Ho Chi Minh City.
+ The End point: Km57+700, Long Thanh District, Dong Nai Province.
Package A3 is from Km16+600 (Ending point Contract Package A2-2) to Km18+713.5 (beginning point Contract Package A4), total length of this package is 2,113.5m. The site is located at Da Phuoc commune, Binh Chanh district and Nhon Duc commune, Nha Be district of Ho Chi Minh City.
Main technical properties of Project
+ Road classification: Expressway, Type A.
+ Design speed: Expressway 120km/h.
+ Lanes: 4 lanes (Ultimate stage: widened to 8 lanes).
+ Width: Road section 25.0m; Bridge section 21.75m.
1. Topography condition
In the Package A3, the Expressway runs area with topographical condition is rather relatively flat, passing through paddy fields, canals and big river (Can Giuoc river)…
2. Geological condition
Geological at area of this Package have some layer as:
- Layer K1: Filling soil: mud – clay with plants.
- Layer K1: Top soil: Silty sand (SM).
- Layer 1a: Elastic silt, greenish grey, blackish grey.
- Layer TK1a: Clayey Sandy with gravel, loose medium dense sometime very dense (SC).
- Layer 1b: Elastic silt (mud), greenish grey, dark, sandwich thin sand layer. 
- Layer 1c: Elastic silt – fat clay, greenish grey, dark, very soft.
- Layer 2a: Lean clay - Fat clay, dark and greenish grey, soft to firm, somewhere medium stiff or mixed organic.
- Layer 2b: Lean clay – Lean clay with sandy, dark and greenish grey, medium stiff – stiff, somewhere very stiff – hard.
- Layer TK2b: Clayey sand with silt, yellowish – greenish grey, medium dense – dense, sometimes very dense.
- Layer 2c: Fat clay - elastic silt, greenish grey, yellowish grey stiff – very stiff, sometimes is hard.
- Layer 3a: Clayey sand, poorly graded sand, whitish – yellowish grey, greenish grey, loose – medium dense
- Layer 3b: Clayey sand, poorly graded sand, whitish yellowish grey, medium dense – dense, sandwich with clay – silt lens.
- Layer TK3b: Lean clay – Fat clay, greenish grey, stiff – very stiff, sometimes medium stiff.
- Layer 3c: Clayey sand, poorly graded sand, whitish – yellowish grey, greenish grey, sometimes with gravel, dense – verry dense.
- Layer 4a: Lean clay, yellowish grey, yellowish brown, medium stiff – stiff.
- Layer 4b: Lean clay, yellowish – greenish grey, yellowish brown, stiff – very stiff, sometimes is hard – very hard.
- Layer 4c: Lean clay, yellowish – greenish grey, yellowish brown stiff – very stiff, sometimes is hard – very hard, mixed sand in some where.
- Layer TK4c: Clayey sand, yellowish – greenish grey, whitish grey, dense.
- Layer 5a: Silty clayed sand yellowish – greenish grey, dense.
- Layer 5b: Clayey sand, Poorly graded sand, yellowish – greenish grey, whitish grey, dense – very dense.
3. Scope of works:
The GMS Ben Luc – Long Thanh Expressway Project Package A3 is executed in a 36 months with the main work items:
- Construct new road. Total length of road and bridge is 2,113.5m on the flat area base on the embankment works.
- Construct frontage road system.
- Construct 2 bridges (Ba Lao and Viaduct No.1 bridge).
- Construct drainage pipe culverts.
- After studying carefully Bidding Document and detailed investigation of actual site conditions, it is found that.
- Technical:
- Some un-complex technologies are applied to the package such as: soft soil treatment by, super T girder, bored pile 1.2m and 1.5m, cantilever box girder, cast in place pre-stressed box girder on scaffolding…
- Construction Schedule:
- The execution time is 36 months which requires the Contractor shall be in ready manner, his mobilization labor and equipment will be executed as short as possible. The Contractor has powerful reserved labor force enough to further mobilize as necessary to speed up the progress.
- Construction conditions:
- Construction conditions are relatively favorable.
- The supply of materials for package is favorable, because sand borrow pits are not so much far. The traffic in and out the package area is favorable.
- With advanced technology and technical capacity, fresh and profuse finance, as professional construction company, our Contractor firmly believes that we will excellently fulfill this package in accordance with the required schedule, good quality and high aesthetics.
II. Electric, water and fuel supply plan:
- Power sourse: 
- The contractor will contact with Ho Chi Minh City electric to buy power from low-voltage stations which are available nearby the site or the contractor will build new low-voltage station to service for construction site and living.
- Besides, to take initiative in electric source, the contractor will reserve generators in case of public power cut
- Water source for construction works and living: 
- The contractor will buy from the water supply factories under the area of Ho Chi Minh City and use drilled well at site and water will be processed freshly.
- Fuel source for construction: 
- The contractor will take initiative to buy at petrol stations nearby the construction site or the prestigious suppliers on the market such as Petrolimex. The contractor has fuel reserve method by tank.
III. Major sources of material supply:
- Black sand (fine sand): 
- Fine sand is bought at the supply such as Tien river… transported by waterway to the site.
- Stone material: 
- Stone material will be taken from the following quarries: Stone for concrete, asphalt concrete, crushed stone: taken from Dong Nai, Binh Duong, Vung Tau province… and transported by waterway to the site.
- Yellow sand (coarse sand): 
- Coarse sand for asphalt concrete, cement concrete, sand blanket… taken from Dong Nai, Binh Duong, Vung Tau province… and then transported by water ways to the site.
- Soil for embankment: 
- Taken from Dong Nai, Binh Duong, Vung Tau province… transported by waterway to the site.
- Bitumen: 
- Dense bitumen with 60/70 pen. Is bought from Ho Chi Minh City

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XÂY DỰNG PHƯƠNG PHÁP TUYÊN BỐGMS BẾN LỨC – LONG THÀNH ĐƯỜNG CAO TỐC DỰ ÁNGói A3: Km16 + 600-Km18 + 713.5NỘI DUNGPHẦN I - CHUNG LỊCH TRÌNHI. trả giá quen và sự hiểu biết về xây dựng trang web của dự án và góiII. điện, nước và nhiên liệu kế hoạch cung cấp.III. lớn nguồn cung cấp vật liệuIV. chính nguồn cung cấp công nhânV. lưu lượng truy cập tổ chức và kiểm soát tạm thời lưu lượng truy cập1. tổ chức biểu đồ để kiểm soát lưu lượng truy cập của nhà thầu2. giao thông điều khiển phương phápVI. dự án an toàn và an ninh lập kế hoạch1. an toàn kiểm soát kế hoạch1.1. nhà thầu của tổ chức biểu đồ1.2. an toàn phương pháp bảo hiểm2. an ninh kiểm soát kế hoạchVII. môi trường quản lý kế hoạch1. nhà thầu của tổ chức1.1. nhà thầu của tổ chức biểu đồ1.2. nhiệm vụ của phí trong đội ngũ nhân viên1.3. nhiệm vụ của nhân viên môi trường xây dựng đội:2. các biện pháp bảo vệ môi trường2.1. máy2.2. nước2.3. tiếng ồn2.4. chất thải2.5. hàng hóa nguy hiểm và hóa chất2.6. sinh thái tài nguyên, và các nguồn có giá trị của khảo cổ học và lịch sử2.7. thủ tục trong các trường hợp khẩn cấp môi trường2.8. bố trí trang webPHẦN II - PHƯƠNG PHÁP XÂY DỰNGA. tổng xây dựng phương phápI. xây dựng trang web giao diệnII. lĩnh vực hoạt độngIII. kỹ thuật phương phápIV. chung xây dựng phương pháp1. trang web giao diện2. xây dựng giao diện3. xây dựng ChuỗiB. chi tiết xây dựng phương pháp của khoản mục công việcI. cầu xây dựng phương pháp1. giới thiệu1.1. Ba Lao bridge1.2. viaduct No.1 bridge2. Arrangement of construction units for bridge3. Site arrangement3.1. Site of Ba Lao bridge3.2. Site of Viaduct No.1 bridge4. Main construction method for Bridge4.1. Ba Lao bridge4.2. Viaduct No.1 bridge5. Construction method of substructure (abutments, piers)5.1. Construction method of abutment or pier on land, using foundation pit without cofferdam5.2. Construction method of pier in water, using foundation pit with steel sheet pile (or steel pipe pile) cofferdam and bottom sealed concrete6. Construction method of superstructure6.1. Ba Lao bridge6.2. Viaduct No.1 bridge7. General construction works7.1. Construction work for concrete and reinforcement concrete7.2. Construction works of bored pile on land7.3. Construction of bore pile in water7.4. Port tensioned pre-stressed R.C Super T girder casting technology (l=38.3m, 31.3m and 28.3m)7.5. Balance cantilever casting technology (55+90+55)m7.6. Construction of box girder according to method of casting in situ on scaffolding (32.5+50+32.5)mII. Road construction1. Preparation work2. Method of embankment construction2.1. Requirement for material2.2. Requirements for construction equipment and labor2.3. Common excavation and unsuitable excavation2.4. Embankment Construction Method2.5. Soft soil improvement2.5.1. By PVD2.5.2. By PHD2.5.3. By Soil cement colimn.3. Drainage system3.1. Requirements for material3.2. Requirement for construction plant, equipment and labor3.3. Construction of pipe culvert
4. Sub-base and Base
4.1. Requirements for material
4.2. Requirements for construction plant, equipment and labor
4.3. Construction of base course
5. Asphalt construction pavement
5.1. Requirements for material
5.2. Requirements for equipment and labor
5.3. Construction sequence of asphalt concrete
5.4. Prime coat and tack coat
5.5. Asphalt Treatment Base course at 13cm thickness
5.6. AC binder course at 7cm thickness
5.7. AC surface course at 5cm thickness
5.8. Rough Asphalt course at 3cm thickness
5.9. Double bituminous surface treatment (DBST).
5.9.1. Requirements for material.
5.9.2. Requirements for plant, equipment and labor.
5.9.3. Construction method.

PART I - GENERAL SCHEDULE
I. Bidder’s familiarity and understanding of construction site:
The GMS Ben Luc – Long Thanh expressway project is a part of the North-South Expressway. It is passing through Ho Chi Mnh City, Dong Nai Province and Long An Province…
The Ben Luc – Long Thanh expressway is about 57.1km long. This’s connected Ben Luc District, Ho Chi Minh City with Long Thanh District, Dong Nai Province.
+ The Start point: Km0+600, Ben Luc District, Ho Chi Minh City.
+ The End point: Km57+700, Long Thanh District, Dong Nai Province.
Package A3 is from Km16+600 (Ending point Contract Package A2-2) to Km18+713.5 (beginning point Contract Package A4), total length of this package is 2,113.5m. The site is located at Da Phuoc commune, Binh Chanh district and Nhon Duc commune, Nha Be district of Ho Chi Minh City.
Main technical properties of Project
+ Road classification: Expressway, Type A.
+ Design speed: Expressway 120km/h.
+ Lanes: 4 lanes (Ultimate stage: widened to 8 lanes).
+ Width: Road section 25.0m; Bridge section 21.75m.
1. Topography condition
In the Package A3, the Expressway runs area with topographical condition is rather relatively flat, passing through paddy fields, canals and big river (Can Giuoc river)…
2. Geological condition
Geological at area of this Package have some layer as:
- Layer K1: Filling soil: mud – clay with plants.
- Layer K1: Top soil: Silty sand (SM).
- Layer 1a: Elastic silt, greenish grey, blackish grey.
- Layer TK1a: Clayey Sandy with gravel, loose medium dense sometime very dense (SC).
- Layer 1b: Elastic silt (mud), greenish grey, dark, sandwich thin sand layer.
- Layer 1c: Elastic silt – fat clay, greenish grey, dark, very soft.
- Layer 2a: Lean clay - Fat clay, dark and greenish grey, soft to firm, somewhere medium stiff or mixed organic.
- Layer 2b: Lean clay – Lean clay with sandy, dark and greenish grey, medium stiff – stiff, somewhere very stiff – hard.
- Layer TK2b: Clayey sand with silt, yellowish – greenish grey, medium dense – dense, sometimes very dense.
- Layer 2c: Fat clay - elastic silt, greenish grey, yellowish grey stiff – very stiff, sometimes is hard.
- Layer 3a: Clayey sand, poorly graded sand, whitish – yellowish grey, greenish grey, loose – medium dense
- Layer 3b: Clayey sand, poorly graded sand, whitish yellowish grey, medium dense – dense, sandwich with clay – silt lens.
- Layer TK3b: Lean clay – Fat clay, greenish grey, stiff – very stiff, sometimes medium stiff.
- Layer 3c: Clayey sand, poorly graded sand, whitish – yellowish grey, greenish grey, sometimes with gravel, dense – verry dense.
- Layer 4a: Lean clay, yellowish grey, yellowish brown, medium stiff – stiff.
- Layer 4b: Lean clay, yellowish – greenish grey, yellowish brown, stiff – very stiff, sometimes is hard – very hard.
- Layer 4c: Lean clay, yellowish – greenish grey, yellowish brown stiff – very stiff, sometimes is hard – very hard, mixed sand in some where.
- Layer TK4c: Clayey sand, yellowish – greenish grey, whitish grey, dense.
- Layer 5a: Silty clayed sand yellowish – greenish grey, dense.
- Layer 5b: Clayey sand, Poorly graded sand, yellowish – greenish grey, whitish grey, dense – very dense.
3. Scope of works:
The GMS Ben Luc – Long Thanh Expressway Project Package A3 is executed in a 36 months with the main work items:
- Construct new road. Total length of road and bridge is 2,113.5m on the flat area base on the embankment works.
- Construct frontage road system.
- Construct 2 bridges (Ba Lao and Viaduct No.1 bridge).
- Construct drainage pipe culverts.
- After studying carefully Bidding Document and detailed investigation of actual site conditions, it is found that.
- Technical:
- Some un-complex technologies are applied to the package such as: soft soil treatment by, super T girder, bored pile 1.2m and 1.5m, cantilever box girder, cast in place pre-stressed box girder on scaffolding…
- Construction Schedule:
- The execution time is 36 months which requires the Contractor shall be in ready manner, his mobilization labor and equipment will be executed as short as possible. The Contractor has powerful reserved labor force enough to further mobilize as necessary to speed up the progress.
- Construction conditions:
- Construction conditions are relatively favorable.
- The supply of materials for package is favorable, because sand borrow pits are not so much far. The traffic in and out the package area is favorable.
- With advanced technology and technical capacity, fresh and profuse finance, as professional construction company, our Contractor firmly believes that we will excellently fulfill this package in accordance with the required schedule, good quality and high aesthetics.
II. Electric, water and fuel supply plan:
- Power sourse:
- The contractor will contact with Ho Chi Minh City electric to buy power from low-voltage stations which are available nearby the site or the contractor will build new low-voltage station to service for construction site and living.
- Besides, to take initiative in electric source, the contractor will reserve generators in case of public power cut
- Water source for construction works and living:
- The contractor will buy from the water supply factories under the area of Ho Chi Minh City and use drilled well at site and water will be processed freshly.
- Fuel source for construction:
- The contractor will take initiative to buy at petrol stations nearby the construction site or the prestigious suppliers on the market such as Petrolimex. The contractor has fuel reserve method by tank.
III. Major sources of material supply:
- Black sand (fine sand):
- Fine sand is bought at the supply such as Tien river… transported by waterway to the site.
- Stone material:
- Stone material will be taken from the following quarries: Stone for concrete, asphalt concrete, crushed stone: taken from Dong Nai, Binh Duong, Vung Tau province… and transported by waterway to the site.
- Yellow sand (coarse sand):
- Coarse sand for asphalt concrete, cement concrete, sand blanket… taken from Dong Nai, Binh Duong, Vung Tau province… and then transported by water ways to the site.
- Soil for embankment:
- Taken from Dong Nai, Binh Duong, Vung Tau province… transported by waterway to the site.
- Bitumen:
- Dense bitumen with 60/70 pen. Is bought from Ho Chi Minh City

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