Construction method for forming grooves and holes and replacing large-diameter piles with small-diameter piles

A technology for groove-forming construction and construction methods, applied in excavation, sheet pile walls, foundation structure engineering, etc., can solve problems such as high efficiency and low construction difficulty, reduce noise emissions, avoid economic losses, and efficiently form grooves and holes Effect
CN104264689AActive Publication Date: 2015-01-07GUANGDONG FOUND ENG GRP CO LTD
3 Cites 13 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG FOUND ENG GRP CO LTD
Publication Date
2015-01-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a construction method for forming grooves and holes and replacing large-diameter piles with small-diameter piles. The method mainly includes the steps of forming the grooves in an underground continuous wall with the aid of a DTH hammer, forming the holes in the large-diameter piles with the aid of the DTH hammer and replacing the large-diameter piles with the small-diameter piles equivalently through the DTH hammer. Compared with a conventional groove and hole forming method, the construction method has the advantages that the defects that rock entering efficiency is low, holes are deviated, the hammer is stuck and even holes are difficult to form in the construction process under the comprehensive complicated geological conditions such as high-rock surface layers, hard stratums and slope stratums can be effectively overcome, the rock entering construction efficiency during grooving of the underground continuous wall and hole forming of the large-diameter piles can be greatly improved, the technical problems of the rock entering groove and hole forming construction under the complicated geological conditions such as high rock surface layers and hard stratums are solved, the construction quality is stable and reliable, the requirements for safety civilization and environmental construction are met, and economic loss and construction time loss of a project can be effectively avoided.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention is used in the field of foundation construction, and in particular relates to a construction method in which grooves are formed, holes are formed, and large-diameter piles are replaced by multiple small-diameter piles. Background technique

[0002] In the trenching construction of the underground diaphragm wall, the traditional method is to use a circular hammer to break the rock mass to form a hole, and then use a square hammer to repair the hole and form a trench; in the process of forming a large-diameter pile under hard rock geological conditions, conventional The best method is to use a pile driver with low efficiency to form a hole. These methods all have obvious disadvantages such as low efficiency, long construction period and high cost. Grooving and hole formation in rocks has always been a difficult point in underground engineering construction, especially when entering rocks after passing through weak strata, and when encounte...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More