Steel sheet pile is a steel structure with linkage devices on the edges, and the linkage devices can be freely combined to form a continuous and tight retaining soil or water retaining wall. Steel sheet pile products are divided into two types according to production technology: cold-formed thin-walled steel sheet piles and hot-rolled steel sheet piles.
Advantages of sheet piling
1. High quality (high strength, light weight, good water barrier);
2. Simple construction, shortened construction period, good durability, and life span of more than 50 years;
3. The construction cost is cheap, the interchangeability is good, and it can be reused 58 times;
4. The construction has significant environmental protection effects, greatly reducing the amount of soil taken and the amount of concrete used, effectively protecting land resources;
5. Disaster relief and rescue operations are highly time-sensitive, such as flood control, landslides, subsidence, quicksand, etc.;
6. Handle and solve a series of problems during the excavation process;
7. Simple construction and short construction period;
8. For construction tasks, it can reduce the space requirements;
9. The use of steel sheet piles can provide necessary safety and is highly time-effective;
10. The use of steel sheet piles is not restricted by weather conditions;
11. The use of steel sheet pile materials can simplify the complexity of inspection materials and system materials;
12. Ensure its applicability, good interchangeability, and reuse.
What are the uses of Larson steel sheet piles?
Larson steel sheet piles are more common. Larson steel sheet piles are widely used in permanent structural buildings. They can be used in docks, unloading sites, embankment protection banks, retaining walls, retaining walls, breakwaters, diversion banks, docks, gates, etc. ; In temporary structures, it can be used for mountain closure, temporary bank expansion, flow interruption, bridge cofferdam construction, large pipeline laying, temporary trench excavation, soil retaining, water retaining, sand retaining, etc.; in flood fighting and rescue, it can be used for flood control , anti-collapse, anti-quicksand, etc.
Larson pile steel sheet pile cofferdam construction is suitable for shallow water with low pile caps and water depths of more than 4m, with thick river bed covering layers of sandy soil, gravel soil and semi-dry soil. It can be used as a water sealing and soil retaining structure. Steel sheet pile cofferdam It is widely used in the construction of foundation projects in shallow water areas.
Construction requirements of Larson steel sheet piles
The construction of Larson steel sheet piles is related to construction water tightness and safety. It is one of the most critical processes in the construction of this project. During construction, the following requirements should be paid attention to:
(1) Larson steel sheet piles are driven by a crawler excavator. Before driving, you must be familiar with the conditions of underground pipelines and structures, and carefully release the accurate center line of the supporting piles.
(2) Before piling, inspect the steel sheet piles and remove the rusted and severely deformed steel sheet piles at the connecting locks. They can only be used after they have been repaired and integrated. Those that are still unqualified after repairs are prohibited.
(3) Before piling, grease can be applied to the lock of the steel sheet pile to facilitate the driving and pulling out of the steel sheet pile.
(4) During the driving process of steel sheet piles, the slope of each pile shall not exceed 2% along with the measurement and monitoring. When the deflection is too large and cannot be adjusted by the pulling method, it must be pulled up and driven again.
(5) Tightly fasten and ensure that the soil is not less than 2 meters after excavation to ensure that the steel sheet piles can be closed smoothly; especially corner steel sheet piles should be used at the four corners of the inspection well. If there are no such steel sheet piles, use old tires or rotten steel sheet piles. Auxiliary measures such as plugging seams should be properly sealed to prevent water leakage from taking away sediment and causing ground collapse.
(6) In order to prevent the lateral earth pressure from squeezing the steel sheet piles after trench excavation, after the steel sheet piles are driven, use H200*200*11*19mm I-beams to secure the Larson steel sheet piles on both sides of the open channel. They are connected into a whole, and the position is about 1.5m below the top of the pile. Use welding rods to weld it firmly, and then use hollow circular steel (200*12mm) every 5 meters to connect the two sides with special movable joints. Steel sheet pile symmetrical support. The nuts of the movable joints must be tightened during support to ensure the verticality of the Larson steel sheet pile and the trench excavation working surface.
(7) During the excavation of the foundation trench, observe the changes of the steel sheet piles at any time. If there is obvious overturning or uplift, immediately add symmetrical supports to the overturned or uplifted parts.
Advantages of sheet piling
1. High quality (high strength, light weight, good water barrier);
2. Simple construction, shortened construction period, good durability, and life span of more than 50 years;
3. The construction cost is cheap, the interchangeability is good, and it can be reused 58 times;
4. The construction has significant environmental protection effects, greatly reducing the amount of soil taken and the amount of concrete used, effectively protecting land resources;
5. Disaster relief and rescue operations are highly time-sensitive, such as flood control, landslides, subsidence, quicksand, etc.;
6. Handle and solve a series of problems during the excavation process;
7. Simple construction and short construction period;
8. For construction tasks, it can reduce the space requirements;
9. The use of steel sheet piles can provide necessary safety and is highly time-effective;
10. The use of steel sheet piles is not restricted by weather conditions;
11. The use of steel sheet pile materials can simplify the complexity of inspection materials and system materials;
12. Ensure its applicability, good interchangeability, and reuse.
What are the uses of Larson steel sheet piles?
Larson steel sheet piles are more common. Larson steel sheet piles are widely used in permanent structural buildings. They can be used in docks, unloading sites, embankment protection banks, retaining walls, retaining walls, breakwaters, diversion banks, docks, gates, etc. ; In temporary structures, it can be used for mountain closure, temporary bank expansion, flow interruption, bridge cofferdam construction, large pipeline laying, temporary trench excavation, soil retaining, water retaining, sand retaining, etc.; in flood fighting and rescue, it can be used for flood control , anti-collapse, anti-quicksand, etc.
Larson pile steel sheet pile cofferdam construction is suitable for shallow water with low pile caps and water depths of more than 4m, with thick river bed covering layers of sandy soil, gravel soil and semi-dry soil. It can be used as a water sealing and soil retaining structure. Steel sheet pile cofferdam It is widely used in the construction of foundation projects in shallow water areas.
Construction requirements of Larson steel sheet piles
The construction of Larson steel sheet piles is related to construction water tightness and safety. It is one of the most critical processes in the construction of this project. During construction, the following requirements should be paid attention to:
(1) Larson steel sheet piles are driven by a crawler excavator. Before driving, you must be familiar with the conditions of underground pipelines and structures, and carefully release the accurate center line of the supporting piles.
(2) Before piling, inspect the steel sheet piles and remove the rusted and severely deformed steel sheet piles at the connecting locks. They can only be used after they have been repaired and integrated. Those that are still unqualified after repairs are prohibited.
(3) Before piling, grease can be applied to the lock of the steel sheet pile to facilitate the driving and pulling out of the steel sheet pile.
(4) During the driving process of steel sheet piles, the slope of each pile shall not exceed 2% along with the measurement and monitoring. When the deflection is too large and cannot be adjusted by the pulling method, it must be pulled up and driven again.
(5) Tightly fasten and ensure that the soil is not less than 2 meters after excavation to ensure that the steel sheet piles can be closed smoothly; especially corner steel sheet piles should be used at the four corners of the inspection well. If there are no such steel sheet piles, use old tires or rotten steel sheet piles. Auxiliary measures such as plugging seams should be properly sealed to prevent water leakage from taking away sediment and causing ground collapse.
(6) In order to prevent the lateral earth pressure from squeezing the steel sheet piles after trench excavation, after the steel sheet piles are driven, use H200*200*11*19mm I-beams to secure the Larson steel sheet piles on both sides of the open channel. They are connected into a whole, and the position is about 1.5m below the top of the pile. Use welding rods to weld it firmly, and then use hollow circular steel (200*12mm) every 5 meters to connect the two sides with special movable joints. Steel sheet pile symmetrical support. The nuts of the movable joints must be tightened during support to ensure the verticality of the Larson steel sheet pile and the trench excavation working surface.
(7) During the excavation of the foundation trench, observe the changes of the steel sheet piles at any time. If there is obvious overturning or uplift, immediately add symmetrical supports to the overturned or uplifted parts.
