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Bulkhead wall type supporting and blocking structure with oblique piles and relieving slabs combined

A technology of retaining structure and unloading plate, which is applied in the direction of shore wall, underwater structure, foundation structure engineering, etc., can solve the problems of increased stress and deformation of the front wall, large deformation of the top of the anchor structure, and complicated construction process. Achieve the effect of improving horizontal resistance, improving the overall anti-sliding safety and stability coefficient, and facilitating construction

Inactive Publication Date: 2016-08-17
JIANGSU SURVEYING & DESIGN INST OF WATER RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the foundation soil quality is poor and the height of the retaining soil increases, the stress and deformation of the front wall will increase sharply. It is necessary to increase the section of the front wall, the length of the pile, and the section of the anchor rod to improve the safety and durability of the wall, which will greatly increase the engineering investment
The tie rods of the anchor-type sheet pile wall structure need to go through multiple processes such as pre-embedding, pre-tensioning, and anti-corrosion, and the construction process is relatively complicated.
The length of the anchor rods is long, which is easily restricted by the site and cannot be constructed, and the top of the anchor structure is often deformed greatly

Method used

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  • Bulkhead wall type supporting and blocking structure with oblique piles and relieving slabs combined
  • Bulkhead wall type supporting and blocking structure with oblique piles and relieving slabs combined
  • Bulkhead wall type supporting and blocking structure with oblique piles and relieving slabs combined

Examples

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Embodiment 1

[0041] This embodiment is the application of the quay wall structure in wharf engineering. The overall structure is as follows figure 1shown. There are 12 expansion sections in total, each expansion section is 50.4m long, the expansion joint is 3cm wide, and the total length is 600m. The longitudinal pile foundation at the front of the wharf is a prefabricated row of piles with a pile spacing of 70cm. Prestressed concrete PHC-600(110)B-C80 pipe piles are selected. Two rows of φ600 mixing piles are placed behind the piles, and the center distance between the piles is 500mm. Cast-in-place L-shaped cap 2, the elevation of the bottom of the beam is 3.70m, the elevation of the top of the cap is 4.70m, the distance between the centers of the cap bottom beams 8 is 4m, and each cap bottom beam 8 is arranged with 5 PHC-600(110)AB- C80, the pile length is 30 meters, the small transverse angle α adopted for the inclined pile layout is 15°, and the inclination angle is 5:1, two of which ...

Embodiment 2

[0043] This embodiment is the application of the quay wall structure in another wharf project. The total length of the wharf is 400m, the length of the standard expansion section is 28.5m, and the width of the expansion joint is 2cm. The longitudinal pile foundation at the front of the wharf is a prefabricated sheet pile, the size of the sheet pile is 500*600 (thickness*width), and a row of φ500@40 high-pressure powder sprayed mixing piles is arranged behind the piles. Cast-in-place L-shaped cap 2, the beam bottom elevation is 3.70m, the cap beam top elevation is 4.70m, fire water tank 12 is installed behind the front wall 7; 6 pieces of PHC-600(110)AB-C80 are arranged, the pile length is 30 meters, and the small transverse angle α adopted by the forward or reverse inclined pile arrangement is 16° and the inclination angle is 4:1. Fill soil (drought sand) on the back deck of the front wall of the wharf to an elevation of 7.50m on the wharf surface. The overall anti-sliding s...

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Abstract

The invention discloses a bulkhead wall type supporting and blocking structure with oblique piles and relieving slabs combined. The supporting and blocking structure comprises front sheet-pile walls, the oblique piles and L-shaped bearing tables. The oblique piles and the front sheet-pile walls are embedded and fixed in the bottoms of the L-shaped bearing tables respectively to form an overall structure. The oblique piles are arranged on the rear sides of the front sheet-pile walls. According to the bulkhead wall type supporting and blocking structure, the L-shaped bearing tables and the oblique piles are used in cooperation for bearing force, all horizontal loads are conveyed to a deep foundation soil layer, a good embedding and fixing effect is achieved, cat anchors in the prior art are replaced, the overall antiskid safety and stability coefficients are increased by 20% or above, and displacement of front sheet-piles is reduced by 10% or above.

Description

technical field [0001] The retaining structure in ports, docks, water conservancy and housing construction projects involved in the present invention is especially suitable for bank wall retaining structures such as port wharf projects, revetments and underground buildings. Background technique [0002] The commonly used forms of quay structure are gravity type and sheet pile type. Among them, the sheet pile quay wall structure has the characteristics of simple construction and low cost, and is widely used in ports, docks, water conservancy and housing construction projects. [0003] The known sheet pile bank structure is mainly composed of a front wall, an anchor bar, an anchor wall, etc., and is hereinafter referred to as an anchor-type sheet pile bank structure. However, when the foundation soil quality is poor and the height of the retaining soil increases, the stress and deformation of the front wall will increase sharply. It is necessary to increase the section of the...

Claims

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Application Information

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IPC IPC(8): E02B3/06E02D29/02
CPCE02B3/066E02D29/0283
Inventor 王海俊周亚军张超丁国莹陈懿
Owner JIANGSU SURVEYING & DESIGN INST OF WATER RESOURCES
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