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Unequal-height longitudinal beam bearing straight wall bottom plate type lining with longitudinal water collecting and releasing channel formed in tunnel bottom and drainage system structure of lining

A drainage channel and drainage system technology, applied in tunnel lining, tunnel, drainage, etc., can solve the problems of tunnel inverted arch uplift deformation, tunnel bottom structure cracking and damage, etc., to save materials, eliminate effects, and reduce engineering construction investment Effect

Pending Publication Date: 2018-06-29
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The technical problem to be solved by the present invention is to provide a kind of unequal-height longitudinal beam bearing straight wall bottom slab lining and its drainage system structure provided with longitudinal water collection and discharge channels at the bottom of the tunnel, so as to reduce or even eliminate the effect of groundwater on the bottom structure of the tunnel lining , to effectively solve the problems of uplift deformation of tunnel inverts or cracking and damage of tunnel bottom structures in karst or groundwater-developed areas, so as to ensure the stability and safety of tunnel construction and operation

Method used

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  • Unequal-height longitudinal beam bearing straight wall bottom plate type lining with longitudinal water collecting and releasing channel formed in tunnel bottom and drainage system structure of lining
  • Unequal-height longitudinal beam bearing straight wall bottom plate type lining with longitudinal water collecting and releasing channel formed in tunnel bottom and drainage system structure of lining
  • Unequal-height longitudinal beam bearing straight wall bottom plate type lining with longitudinal water collecting and releasing channel formed in tunnel bottom and drainage system structure of lining

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0043] refer to Figure 1 to Figure 7, the tunnel bottom of the present invention is provided with vertical water collection and discharge channels with unequal height longitudinal beam bearing straight wall floor type lining and its drainage system structure, including the primary support structure 10 of the arch wall, the secondary lining structure 40 of the arch wall and the scope of the arch wall Waterproof layer 20, and drainage system. The bottom of the side walls on both sides of the arch wall secondary lining structure 40 is provided with longitudinal beams 42 consolidated with it as its load-bearing structure, which can effectively control the settlement and deformation of the arch support structure for tunnels in weak surrounding rock areas, and for tunnels in karst areas, It can effectively span karst forms in a certain size range (dissolv...

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PUM

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Abstract

The invention provides an unequal-height longitudinal beam bearing straight wall bottom plate type lining with a longitudinal water collecting and releasing channel formed in the tunnel bottom and a drainage system structure of the lining. The effect of underground water on the tunnel lining bottom structure is reduced or even eliminated, and the problems that a tunnel inverted arch of a karst orunderground water development area upwards floats and deforms, or the tunnel bottom structure is cracked and damaged is effectively solved to ensure the stability and safety of tunnel construction andoperating. Longitudinal beams fixedly connected with an arch wall secondary lining structure are arranged at the bottoms of side walls on the two sides of the arch wall secondary lining structure toserve as a bearing structure of the arch wall secondary lining structure, and the sections of the longitudinal beams are unequal-height variable sections. A bottom plate is arranged between the longitudinal beams on the two sides, the two transverse ends of the bottom plate are connected with the longitudinal beams on the same side, a box-type construction body is arranged on the lower portion ofa plate body along the longitudinal center, and a longitudinal communicating cavity inside the box-type construction body serves as the water collecting and releasing channel. Drainage systems comprise the arch wall range drainage system, the tunnel bottom drainage system and the tunnel bottom interior drainage system which communicate with the water collecting and releasing channel.

Description

technical field [0001] The invention relates to a tunnel lining and a drainage system structure, in particular to a tunnel lining and its waterproof and drainage system structure used in areas with developed groundwater or karst areas. Background technique [0002] Since the beginning of the 21st century, my country's railway construction has developed rapidly, and more and more high-standard double-track railways with a speed of more than 200km per hour have been built. Especially in the southwest mountainous area, karst is developed, and the development of the line is subject to many factors such as large curve radius and complex topographic and geological conditions. Restricted by these factors, the scale of karst tunnels increased rapidly. Due to the complexity, diversity, and irregularity of karst and karst water development, the risks of building large karst tunnels, especially their operation, are getting higher and higher. [0003] According to the investigation, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/04E21D11/10E21D11/38E21D20/00E21F16/02
CPCE21D11/003E21D11/04E21D11/105E21D11/38E21D20/00E21F16/02
Inventor 卿伟宸钟昌桂孟祥磊高杨郑伟郑余朝张志强朱勇曾宏飞黄华王芳郑尚峰曾琦
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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