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Ballast tunnel center ditch overhauling well and overhauling method

A technology for the center of the tunnel and the center ditch, which is applied in drainage, earthwork drilling, safety devices, etc. It can solve the problems of difficult maintenance of the ditch, and achieve the effects of convenient installation and transportation, uniform and dispersed force, and light weight

Pending Publication Date: 2019-09-03
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of difficult maintenance of the ballasted tunnel center ditch in the prior art

Method used

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  • Ballast tunnel center ditch overhauling well and overhauling method
  • Ballast tunnel center ditch overhauling well and overhauling method

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than in...

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Abstract

The invention belongs to the technical field of tunnel engineering and particularly provides a ballast tunnel center ditch overhauling well and an overhauling method. The ballast tunnel center ditch overhauling well comprises a cylindrical work well body and a well lid; the work well body is formed by splicing a plurality of arc-shaped steel plates; and when a center ditch needs to be overhauled,one cover plate is taken away from the center ditch of a section with blockage, the plurality of arc-shaped steel plates are spliced and enclosed on the side wall of the center ditch to form the workwell body, backfilling is conducted, the work weel body can isolate the center ditch from the outside, staff can enter the center ditch from the work well body to perform overhauling construction, andthe well lid is covered after overhauling. The overhauling well adopts a cylindrical splicing structure, so on one hand, the problem of impeded drainage caused by blockage of water discharging of thecenter cover plate ditch is solved and the safety of the tunnel structure is guaranteed, and on the other hand, the cylindrical weel body is stressed uniformly and dispersedly, and each arc-shaped steel plate for splicing is lightweight and convenient to mount and transport.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering, and in particular relates to an overhaul shaft and an overhaul method for a center ditch of a ballasted tunnel. Background technique [0002] Most of the existing tunnels use double-sided gutters and central cover ditch, and weep holes are set at the foot of the walls on both sides for drainage. The double side ditch is located on the side wall of the tunnel, and the central cover ditch is located under the track bed between the two lines. There is a Φ50 circular drainage blind pipe (perforated corrugated pipe) behind the second lining. Both ends of the circumferential blind ditch and the longitudinal blind ditch are directly connected to the side ditch of the tunnel. Tunnel side ditch. A Φ50 PVC drain hole is set in the middle of each longitudinal blind ditch to connect to the side ditch of the tunnel. The groundwater behind the lining is collected by the circumferential and vertic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F16/02
CPCE21F16/02
Inventor 肖明清焦齐柱杨剑郑强刘斌廖辉
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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