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Vertical shaft tunnel concrete lining structure and method

A technology of concrete and concrete layer, which is applied in shaft lining, shaft equipment, earthwork drilling and mining, etc. It can solve the problems of long construction period, high construction cost, and high safety risk, so as to reduce labor cost, meet quality and efficiency, and ensure safety Effect

Inactive Publication Date: 2019-08-06
SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The safety risk during the construction period is extremely high; the sliding time of the sliding form is judged by experience, if it is not well grasped, there will be quality accidents of sliding failure; the concrete is put into the warehouse through the slide pipe, and the quality accident of aggregate separation is prone to occur; the construction period is long, high construction cost

Method used

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  • Vertical shaft tunnel concrete lining structure and method
  • Vertical shaft tunnel concrete lining structure and method
  • Vertical shaft tunnel concrete lining structure and method

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Embodiment Construction

[0031] Such as Figure 1-4 As shown, a shaft tunnel concrete lining structure includes a prefabricated pipe joint 1, the prefabricated pipe joint 1 includes a prefabricated concrete pipe body 4, and the upper end of the prefabricated concrete pipe body 4 is provided with a lifting ring 5, which can be used to connect with a hoisting device 10 and lower it into the shaft , and the corresponding place at the lower end of the pipe body 4 is provided with an orifice 6 for the suspension ring to put in, so that a plurality of pipe bodies 4 can be assembled joint by joint to form a shaft lining structure. A 5cm gap is reserved between the outer wall of the prefabricated pipe and the surrounding rock surface 2 (specifically, the shotcrete surface of the surrounding rock). Connected into a whole to ensure the overall stability of the surrounding rock, and most of the self-weight load of the prefabricated pipe can be transmitted to the surrounding rock to ensure the structural safety d...

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Abstract

The invention discloses a vertical shaft tunnel concrete lining structure and a method. The vertical shaft tunnel concrete lining structure comprises prefabricated pipe sections which are assembled section by section to form a pipe-shaped structure, and a concrete layer is arranged between the pipe-shaped structure and the surrounding rock surface and connects the prefabricated pipe sections withthe surrounding rock surface into a whole. According to the vertical shaft tunnel concrete lining structure and the method, the working efficiency of a concrete lining can be improved, the construction safety risk is reduced, and the separation quality problem of lining concrete aggregate is eliminated.

Description

technical field [0001] The invention relates to a shaft tunnel concrete lining engineering, in particular to a shaft tunnel concrete lining structure and method. Background technique [0002] In the field of hydropower and water conservancy projects, there are a large number of projects whose power plants are arranged underground, and cable shafts and ventilation shafts leading to the ground need to be installed, and the highest has reached more than 300 m. [0003] During the excavation of the shaft, the surrounding rock needs to be sprayed and anchored to ensure the stability of the surrounding rock. After the excavation is completed, in order to ensure the long-term safe operation of the building, reinforced concrete lining must be carried out. The thickness of the lining is generally 30-50cm. The main function of the lining is to prevent the local damage of the surrounding rock or to facilitate the structural layout in the well. [0004] At present, the shaft lining str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D5/04
CPCE21D5/04
Inventor 章鹏郑晶星向正林张晨敏潘定才
Owner SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD
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