Main duct construction method laid down tunnel structure article

A technology of tunnel structure and construction method, which is applied in the direction of tunnels, tunnel linings, mining equipment, etc., and can solve the problems of difficult insertion into subsequent main pipelines, cumbersome operations, excessive manpower and material costs, etc.
CN101092878AInactive Publication Date: 2007-12-26NTS ENC
1 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
NTS ENC
Publication Date
2007-12-26
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

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

Abstract

The invention discloses a main pipe construction method for establishing the tunnel formation, comprising following steps: pushing down a leading pipe and an initial main pipe underground; preventing landslide; conveying the next main pipe whose outer diameter is far smaller than the initial pipe to the inside of the main pipe setting space; expanding the diameter of the next main pipe to make it the same as the diameter of the initial main pipe; connecting the next main pipe after expansion treatment with the front end of the initial main pipe; repeating the connection operation of the next main pipe for establishing the tunnel formation. The technique scheme is able to construct in a direct or curve way, swift, safe and simple.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to the main pipeline construction method for laying tunnel structures that must be carried out in advance for laying straight or curved tunnels designed to adapt to terrain or underground conditions simply, quickly and firmly. Korean Patent Application No. 2004-91846 and Patent Application No. 2005-101768, which were previously applied by the applicant, can further significantly reduce the cost, and can complete the main pipeline construction more easily, quickly and safely. Background technique

[0002] In general, in order to lay a tunnel, it is necessary to install a tunnel structure capable of withstanding the external stress of the tunnel. In the past, almost all tunnels were excavated to a certain depth in advance, and then erected using beams, iron plates, or corner timbers, etc., and then Set up the tunnel structure, repeat the above construction method in this way, and complete the tunnel laying.

[0003] However...

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