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Linkage precast pile type underground diaphragm wall

A technology for underground diaphragm walls and prefabricated piles, which is applied to sheet pile walls, buildings, and foundation structure engineering, etc., and can solve the problems that the circular cast-in-place pile structure is not as rational in stress as the rectangular underground diaphragm wall structure, etc.

Active Publication Date: 2012-07-11
GUANGDONG SANHE PILE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in terms of horizontal force, the force rationality of circular cast-in-place pile structure is far less than that of rectangular underground diaphragm wall structure

Method used

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  • Linkage precast pile type underground diaphragm wall
  • Linkage precast pile type underground diaphragm wall
  • Linkage precast pile type underground diaphragm wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The underground continuous wall of interlocking prefabricated piles in the present invention is composed of a pile body 1 , a water stop groove 7 and a gelled water stop material 5 . After the concrete 6 is poured, it is formed by centrifugal forming, vibration forming or other methods, and steam curing or natural curing is used to prepare a single individual prefabricated pile. The pile body 1 is a hollow concrete prefabricated rectangular body, the two end faces of the pile body 1 are connected with connecting plates 2, and there are water stop grooves 7 on any two corresponding outer walls of the pile body, and the length of the water stop groove 7 is pile 2 / 5-4 / 5 of the length of the body 1, the shape and size of the water stop grooves 7 on the two corresponding side walls are the same, the water stop grooves are concave, and the shape of the water stop grooves 7 is semicircle, triangle, square, trapezoid or It is a kind of shape obtained by dividing the axisymmetri...

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Abstract

A linkage precast pile type underground diaphragm wall relates to an industrial and civil building precast part, and particularly relates to an underground spatial geotechnical supporting system. The linkage precast pile type diaphragm wall comprises more than two piles, connecting plates, water retaining grooves and water retaining gel materials. Each pile is a hollow concrete precast rectangular pile formed by concrete, prestress steel bars or steel strands, hoop ribs, rebar, the connecting plates, main rib rivet holes and the water retaining grooves. The connecting plates are connected to two end faces of each pile, any two opposite lateral walls of each pile are provided with the inwardly-concave water retaining grooves, the length of each water retaining groove is 2 / 5-4 / 5 of that of each pile, the water retaining grooves on each two opposite lateral walls are identical in shape and size, the water retaining grooves of each two adjacent piles are opposite in position and filled with the water retaining gel materials. The connecting plates are provided with the main rib rivet holes and connected with main ribs in the piles through the main rib rivet holes. The linkage precast pile type underground diaphragm wall compared with normal precast concrete has higher bearing capacity and more evident energy saving and environment protection effects.

Description

technical field [0001] The invention relates to an industrial and civil building prefabricated part, in particular to an underground space geotechnical support system. Background technique [0002] With the development of my country's construction, the use of underground space for underground transportation, commerce and garages has attracted more and more attention from governments at all levels. In recent years, underground space excavation support technology has been applied in a large number of projects. The traditional supporting structure of diaphragm wall bears reasonable force, but has defects such as complicated construction technology, serious mud pollution, long construction period, and high cost. Therefore, it has been gradually replaced by cast-in-situ pile supporting structure in recent years. Compared with the underground diaphragm wall, the cast-in-situ pile support structure has the advantages of less pollution, shorter construction period and lower cost. ...

Claims

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Application Information

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IPC IPC(8): E02D5/10E02D5/12E02D5/14
Inventor 黄强颜小荣
Owner GUANGDONG SANHE PILE CO LTD
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