Sinking well wall using drilling method and manufacturing method thereof

Abstract

The invention discloses a sinking well wall using a drilling method and a manufacturing method of the sinking well wall using a drilling method, and relates to an underground well wall structure, which aims to solve the vertical compression of the well wall and reduce or avoid the joint crack between a compressible well wall joint and the other well wall due to tensile force. According to the sinking well wall using the drilling method, both ends of the compressible well wall joint are respectively connected with ordinary well walls; a first member is fixedly connected to the ordinary well wall at one end of the compressible well wall joint, and a second member is fixedly connected to the ordinary well wall at the other end of the compressible well wall joint; when the compressible well wall joint receives the pressure along the depth direction of the well wall, the first member and the second member move relatively; and when the compressible well wall joint receives the tensile force along the depth direction of the well wall, the first member and the second member are mutually matched to stop the relative movement of the first member and the second member. The invention is applicable to manufacture and apply the sinking well wall using the drilling method.

Description

technical field [0001] The invention relates to an underground shaft wall structure, in particular to a drilling method sinking shaft wall with a compressible shaft wall joint and a manufacturing method thereof. Background technique [0002] At present, in the drilling construction of the drilling method, in order to prevent the wellbore from being affected by the vertical additional force generated by the alluvium settlement during the use of the wellbore, a vertically compressible wellbore joint is set in the drilling wellbore. , to realize the overall vertical compressibility of the drilling well wall and prevent the well wall from breaking. figure 1 It is a structural schematic diagram of a compressible well wall joint in the prior art. see figure 1 As shown, the compressible well wall joint 10 is connected to other well walls 20, 30 by flange welding. The other well walls here are called ordinary well walls, which are commonly referred to in the art as well walls, wh...

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventors found that under tension, the weld between the compressible well wall joint and other well walls is a weak point, and cracking of the weld is prone to occur, which will seriously shorten the service life of the wellbore

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