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Frame type low-position draining system tunnel lining structure

A drainage system, frame type technology, applied in the direction of tunnel lining, tunnel, drainage, etc., can solve the problems of uplift of the inverted arch, damage to the track bed structure, water accumulation on the track bed, etc.

Active Publication Date: 2016-08-17
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In extreme rainstorms or continuous rainfall weather, the amount of water entering the tunnel through the blind drainage pipe exceeds the design drainage capacity of the side ditch and the central ditch, resulting in water accumulation in the track bed; The drainage blind pipe is discharged in time, and the water pressure rises sharply, causing the inverted arch to bulge and even the side wall to crack; again, under the action of high water pressure, the waterproof measures at the construction joints of the inverted arch are destroyed, and groundwater enters the inverted arch and fills the gap and will fill the gap. lift up, thereby destroying the track bed structure

Method used

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  • Frame type low-position draining system tunnel lining structure
  • Frame type low-position draining system tunnel lining structure
  • Frame type low-position draining system tunnel lining structure

Examples

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Reference figure 1 The frame-type low drainage system tunnel lining structure of the present invention includes the arch wall initial support structure 10, the arch wall secondary lining structure 30 and the bottom plate 31, and the arch wall initial support structure. Waterproof and drainage system 30 between 10 and the secondary lining structure 30 of the arch wall. Under the bottom plate 31, a tunnel bottom frame structure composed of a foundation beam 41, a short column 43 and a cross beam 42 is arranged as the bottom lateral bearing structure of the arch wall secondary lining structure 30 and the vertical bearing structure of the bottom plate 31. The lower end of the drainage system 20 leads to the tunnel longitudinal drainage channel arranged in the inner space of the tunnel bottom frame structure. . The frame-type tunnel bottom structure is used to rep...

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Abstract

The invention relates to a frame type low-position draining system tunnel lining structure. The frame type low-position draining system tunnel lining structure comprises a primary arch wall support structure, a secondary arch wall lining structure and a base plate which are sequentially arranged in an arch wall range from outside to inside and a water preventing and draining system located between the primary arch wall support structure and the secondary arch wall lining structure, wherein a tunnel bottom frame structure formed by foundation beams, short columns and crossbeams is arranged below the base plate to serve as the transverse bearing structure of the secondary arch wall lining structure and the vertical bearing structure of the base plate. The lower end of the draining system is arranged in a longitudinal tunnel draining channel in the internal space of the tunnel bottom frame structure in an oriented manner. The frame type low-position draining system tunnel lining structure has the advantages that a traditional tunnel lining tunnel bottom structural form is modified, the stress form of the tunnel bottom structure is changed, the effect of underground water on the tunnel lining bottom structure is reduced even eliminated, draining outside the lining structure is achieved at the same time, and accordingly the safety of the tunnel lining structure during operation especially in rainy and flood seasons is guaranteed.

Description

Technical field [0001] The invention relates to a tunnel lining structure, in particular to a tunnel lining structure in a karst area where groundwater is greatly affected by seasons or groundwater is developed. Background technique [0002] Since the beginning of the 21st century, my country’s railway construction has developed rapidly. More and more high-standard double-track railways have been constructed at speeds of more than 200km per hour, especially in the southwest mountainous areas, where karst is developed, and the line extension is subject to large curve radius and complex terrain and geological conditions. Restricted by various factors, the scale of karst tunnels has increased rapidly. Due to the complexity, diversity and irregularity of the development of karst and karst water, the risk of building long karst tunnels, especially the operational risk, is getting higher and higher. [0003] In recent years, during the operation of high-speed railway tunnels such as Yiwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/38E21D11/10E21F16/02
CPCE21D11/003E21D11/107E21D11/383E21F16/02
Inventor 张磊卿伟宸王芳高杨朱勇郑伟孟祥磊曾宏飞黄华钟昌桂李泽龙陈锡武
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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