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Support construction method for high-temperature geothermal tunnels

A construction method, high-temperature geothermal technology, applied in mine/tunnel ventilation, earthwork drilling, pump control, etc., to improve comfort and ensure smooth and normal operation

Inactive Publication Date: 2019-01-11
SINOHYDRO ENG BUREAU 4
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  • Abstract
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  • Claims
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Problems solved by technology

[0009] The main purpose of the present invention is to provide a high-temperature geothermal tunnel support construction method to solve the problems of high-temperature geothermal tunnel support construction in the prior art

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  • Support construction method for high-temperature geothermal tunnels
  • Support construction method for high-temperature geothermal tunnels

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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0026] In the present invention, unless stated otherwise, the used orientation words such as "upper, lower, top, bottom" are usually for the directions shown in the drawings, or for the parts themselves in the vertical, In terms of vertical or gravitational direction; similarly, for the convenience of understanding and description, "inner and outer" re...

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Abstract

The invention provides a support construction method for high-temperature geothermal tunnels, which includes a step S10 and a step S20. In the step S10, the environment temperature is reduced after tunnel excavation is completed. In the step S20, when the environment temperature meets the construction requirement, support construction is carried out on a rock surface to be supported. The temperature of the construction environment is reduced before the support work, and support construction is carried out after the environment temperature meets the construction requirement. The temperature isreduced first in the process of support construction, so that the construction temperature meets the requirement, the impact of high temperature is reduced, smooth and normal construction is ensured,and workers feel more comfortable during construction. The method is worth popularizing and applying.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a high-temperature geothermal tunnel support construction method. Background technique [0002] The complex environment during tunnel construction, especially the high geothermal temperature in some tunnel sections, has caused certain difficulties to the construction, as follows: [0003] 1. Emulsion explosives will melt at 40°C to 50°C and cause explosion rejection; ordinary millisecond nonel detonators will produce thermal reaction explosions and failures at temperatures above 80°C, which will cause large safety hazards for on-site construction workers. [0004] 2. Under high temperature conditions, construction workers are prone to heat stroke, dizziness, vomiting, etc., as well as hot air, hot water spray, burns and other comprehensive diseases. [0005] 3. Due to the high temperature, the efficiency of construction personnel and equipment is significantly reduce...

Claims

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Application Information

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IPC IPC(8): E21F3/00E21F1/08F04D27/00
CPCE21F1/08E21F3/00F04D27/006
Inventor 杨贵春陈鹏孙建新卢高辉彭代枫韩涛刘保中
Owner SINOHYDRO ENG BUREAU 4
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