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Prefabricated steel sleeve guided rock-socketed system and application method thereof

A technology of steel sleeve and prefabricated steel, which is applied in construction, sheet pile wall, foundation structure engineering and other directions to achieve the effect of improving work efficiency, saving cost and solving the difficulty of hole forming

Active Publication Date: 2014-09-03
POWERCHINA MUNICIPAL CONSTR GRP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The present invention provides a prefabricated steel sleeve rock-socketing guide system to solve the technical problems existing in the known technology, which can effectively solve the technical problems of pile tip slippage and difficult hole formation in the process of drilling obliquely hard bedrock, and can Save costs and improve work efficiency

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  • Prefabricated steel sleeve guided rock-socketed system and application method thereof
  • Prefabricated steel sleeve guided rock-socketed system and application method thereof

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Embodiment Construction

[0023] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0024] See figure 1 and figure 2 , a prefabricated steel sleeve guiding rock-socketing system, including a guiding steel sleeve 2 and a limiting plate 1, the limiting plate 1 is processed into a hexagonal or circular shape by steel plates, and a hexagonal shape is used in the construction of an underground diaphragm wall. Root cylindrical pile foundation then is processed into circle, and present embodiment is example with hexagon. The size of the vertical opposite sides of the hexagon fits the width of the underground diaphragm wall, and the dimension along the length direction of the underground diaphragm wall is processed and formed according to the original design and reasonable size. The acetylene gas flame gun is used to cut and guide...

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Abstract

The invention relates to a prefabricated steel sleeve guided rock-socketed system and an application method of the prefabricated steel sleeve guided rock-socketed system. The application method comprises the following steps: (1) manufacturing and assembling a guided rock-socketed system; (2) putting a prefabricated steel sleeve system in the hole of a cast-in-situ bored pile; (3) stabilizing a steel sleeve guide system in a guide wall plane position; (4) cutting out the parts, higher than the guide wall plane position of an underground diaphragm wall, of the guide steel sleeve and a hoisting anchor ring; (5) inserting a rock-socketed drill stem in the guide steel sleeve and correcting the vertical degree of the guide steel sleeve system any time; (6) drilling to a designed depth after the drill bit of the rock-socketed drill stem goes into oblique bed rock; (7) carrying out rock-socketed drilling circularly one by one; and (8) carrying out the construction of the cast-in-situ bored pile of the underground diaphragm wall. Due to the limiting actions of a limiting plate and the guide steel sleeve, the rock-socketed drill stem is freely inserted in the guide steel sleeve to drill the oblique bed rock and directional drilling of the bed rock is realized, and therefore, the technical problems of pile toe slippage and difficult hole forming in hard oblique rock face drilling construction are effectively solved, the cost is saved and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the engineering technical field of construction of cast-in-place piles with oblique bedrock, such as railways, highways, municipal administration, housing construction, docks, ports and airports, and particularly relates to a prefabricated steel sleeve rock-socketed guiding system. Background technique [0002] At present, in the fields of international and domestic railways, highways, municipal administration, housing construction, wharfs, ports and airports, etc., the foundation construction of oblique bedrock bored piles relies solely on impact drilling pile machines to impact drilling, and when encountering oblique bedrock, filling and repeated drilling is used. Hole construction, high mechanical damage rate, serious material waste, low work efficiency, and difficult to effectively guarantee the construction period. Contents of the invention [0003] The present invention provides a prefabricated steel sleeve rock-socketi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D13/04E02D5/66
Inventor 刘建平陈世鹏张道波刘文丽陈国梁李善忠
Owner POWERCHINA MUNICIPAL CONSTR GRP CO LTD
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