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w-shaped steel sheet pile structure

A steel sheet pile and section steel technology, applied in sheet pile walls, infrastructure engineering, construction, etc., can solve the problems of high construction cost of cast-in-place piles, discharge of soil slag or mud, and underground pollution, etc. Small residual stress and good water resistance

Active Publication Date: 2017-02-22
连云港市云达建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The construction cost of cast-in-place piles for underground diaphragm walls is high, and the construction period is long. After construction, a long maintenance period is required to bear the load. When the holes are formed, a large amount of soil residue or mud is discharged, which pollutes the underground and is not environmentally friendly.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The construction process of W-shaped steel sheet pile and rotary grouting cable-stayed string anchor cable:

[0033] like Figure 5 , first measure and set out, check the steel sheet pile, position the guide beam, make the guide beam, insert and drive the W-shaped steel sheet pile, pump and excavate the foundation pit, and then start the construction of the rotary grouting anchor cable, passing the anchor cable hole on the U-shaped steel , implement high-pressure rotary grouting anchor cables, form string anchor cables through pressure adjustment and lifting speed, install waist beams, etc., seal the bottom with concrete, pour caps, finally remove anchor cables at waist beams, and remove steel sheet piles. According to the above workflow, According to the size of the pit foundation, different numbers of W-shaped steel sheet piles, waist beam 1 and waist beam support 2, as well as the number of layers of the cable-stayed anchor cable and the anchor rod 4 can be selected....

Embodiment 2

[0035] W-shaped steel sheet piles can be used in combination with existing internal support structures such as Figure 4 As shown, a number of W-shaped steel sheet piles form a closed foundation pit. Triangular plates 13 are arranged on the four corners of the foundation pit. The beams 11 and longitudinal beams 10 in the pit foundation are arranged perpendicular to each other. The waist beam 1 is fixedly connected, and the waist beam support 2 is arranged below the waist beam 1. The waist beam support 2 is a left and right combination type, and a diagonal brace 12 is provided on the adjacent side of the pit foundation.

[0036] like Figure 6 As shown, first measure and set out, check the steel sheet pile, position the guide beam, make the guide beam, insert and drive the W-shaped steel sheet pile, pump and excavate the foundation pit, then install the inner support of the waist beam, seal the bottom with concrete, and pour the cap , and finally the waist beam anchor cable is ...

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Abstract

The invention discloses a W-shaped steel sheet pile structure. Two H-shaped steels and a U-shaped steel are combined to form a unit of the W-shaped steel sheet pile, a waist beam is arranged on the H-shaped steels, the U-shaped steel is arranged between the two H-shaped steels, female fasteners are arranged at the two inner sides of the bottom flange of each H-shaped steel, male fasteners are arranged at the two outer sides of the U-shaped steel, and the male fasteners of the U-shaped steel are fastened into the female fasteners; the middle of the U-shaped steel is provided with an anchor cable hole; a plurality of W-shaped steel sheet piles form a closed foundation pit, and the tails of anchor ropes are fixed on the waist beams through the anchor cable holes. The W-shaped steel sheet pile structure has the following advantages: (1) the two H-shaped steels and the U-shaped steel are used for forming a W, the female fasteners are adopted as locking openings to connect with the male fasteners, the bearing capability is high, and the self-structure is light; (2) a continuous wall which is formed by using the W-shaped steel sheet piles has extremely high strength and rigidity, the water tightness is good, the fasteners at the joints of the steel sheet piles are combined tightly, so that seepage can be prevented naturally, the wall is light and has high deformation adaptability, and the W-shaped steel sheet pile structure is applicable to the construction of various sizes of foundation pits.

Description

technical field [0001] The invention belongs to the field of construction, and in particular relates to a W-shaped steel sheet pile structure. Background technique [0002] Steel sheet pile is an efficient and economical building material. At home and abroad, it is widely used in structural foundation projects such as piers, harbors, docks, embankment protection banks, water-stop cofferdams, river regulation, embankment reinforcement, retaining walls, water retaining walls, and building foundation pit support. [0003] The construction of steel sheet piles is simple, which can reduce the space requirements and shorten the construction period. The use of steel sheet piles can provide the necessary safety and strong timeliness, and is not restricted by weather conditions. It can simplify the complex procedures for checking the performance of materials or systems, and ensure its adaptability, good interchangeability, and reusability. [0004] The internal support type is curr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/04E02D5/08
Inventor 黄忠仁何正标黄继锋黄继康
Owner 连云港市云达建设工程有限公司
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