Mounting method of Larsen steel plate pile crown beam
A technology of Larsen steel sheet pile and installation method, which is applied in sheet pile wall, excavation, construction, etc., can solve the problems of heavy workload, increased construction period, waste of three materials, etc., and achieves convenient transportation and installation, and enhances bending stiffness. Effect
Pending Publication Date: 2018-06-05
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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[0023] The design of a foundation pit in Shanghai adopts 400*170 type Larsen steel sheet pile as the enclosure structure. The top of the steel sheet pile is equipped with a crown beam. The inner and outer steel plates are 500mm*14mm, and the side plates of the reinforcing ribs are 310mm*400mm*12mm steel plates. The end plates are made of 250mm*400mm*12mm steel plate, the spacing of the reinforcing ribs is 2.4m, the tension bolts are 2*M20, and the vertical spacing is 300mm. After the outer steel plate and the inner steel plate are welded with the reinforcement ribs, they are arranged alternately by the tension bolts to form a crown beam with a width of 368mm, a height of 500mm, and a rib spacing of 0.8m.
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The invention relates to a mounting method of a Larsen steel plate pile crown beam. The mounting method includes: A, welding reinforcing ribs on an outer-side steel plate and an inner-side steel platerespectively, forming bolt holes in the reinforcing ribs, and reserving bolt holes in the top of a Larsen steel plate pile; B, putting the outer-side steel plate on the outer side of the Larsen steelplate pile, enabling the reinforcing ribs of the outer-side steel plate to extend into a groove corresponding to the Larsen steel plate pile, putting the inner-side steel plate on the inner side of the Larsen steel plate pile, and enabling the reinforcing ribs of the inner-side steel plate to extend into the groove corresponding to the Larsen steel plate pile; C, inserting split bolts into the corresponding bolt holes to connect the inner-side steel plate and the outer-side steel plate with the Larsen steel plate pile to form a crown beam. Integrity of the steel plate pile can be improved, staggered toppling is prevented, on-site welding workload is reduced, and pouring of concrete is not needed; the steel plates on two sides can be split after the crown beam is used and can be recycled.
Description
Technical field [0001] The invention relates to the technical field of construction engineering, in particular to a method for installing a Larsen steel sheet pile crown beam. Background technique [0002] As a new type of building material, Larsen steel sheet piles have played an important role in cofferdams, large-diameter pipeline laying, temporary foundation pit excavation, retaining walls, and bank protection projects. The Larson steel sheet pile has fast construction speed, low construction cost, and can be recycled and reused. It has a significant environmental protection effect, greatly reducing the amount of earth excavation and concrete usage, and effectively protecting land resources. Larson steel sheet piles are interlocked with each other through small locks, which have good waterproof performance. [0003] The width of Larson steel sheet piles is relatively small, generally 40~75cm, but the steel sheet piles are connected by locks, which cannot guarantee the same def...
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IPC IPC(8): E02D5/04E02D17/04
CPCE02D5/04E02D17/04E02D2300/0029E02D2600/20
Inventor 雷晗
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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