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Excavated tunnel gas detection system and method for advanced detection of spillage of oil gas and gas

A technology for tunnel excavation and detection system, which is applied in measurement device, geophysical measurement, phase influence characteristic measurement, etc., can solve the problems of reducing construction efficiency, gas concentration detection exceeding the standard and stop work, etc., and achieve the effect of reducing construction risk.

Inactive Publication Date: 2017-07-25
中铁五局集团成都工程有限责任公司
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Problems solved by technology

[0004] In order to solve the technical problem that the on-site gas concentration detection often exceeds the standard and stop work in the existing tunnel construction, which greatly reduces the construction efficiency, the present invention provides an excavation tunnel gas detection system that can detect the on-site gas concentration and improve construction efficiency and detect oil, gas and gas in advance overflow method

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  • Excavated tunnel gas detection system and method for advanced detection of spillage of oil gas and gas

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[0034] 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.

[0035] see Figure 1 to Figure 5 ,in figure 1 It is a structural schematic diagram of an embodiment of an excavated tunnel gas detection system provided by the present invention; figure 2 is the application figure 1 The process flow chart of an embodiment of the method for detecting oil, gas and gas spillage in advance of the excavated tunnel gas detection system shown; image 3 yes figure 2 A process flow diagram of an embodiment of Step 1 of the method...

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Abstract

The invention provides an excavated tunnel gas detection system and a method for advanced detection of spillage of oil gas and gas. The method for advanced detection of spillage of oil gas and gas of the excavated tunnel gas detection system is characterized in that the method comprises the following steps: a step 1, advanced geological boring detection: advanced geological boring detection is carried out for front of an excavated tunnel face; a step 2: detection of an excavated tunnel gas detection system: the excavated tunnel gas detection system is applied for collecting a gas data sheet; a step 3: data analysis and verification: concentration of front gas is predicated. The excavated tunnel gas detection system and the method for advanced detection of spillage of oil gas and gas by using the system employ a complex geophysical prospecting method with combination of gas monitoring and advanced geological boring for carrying out mutual data statistics, at the same time concentration of front gas is predicated by means of analysis and calculation of all data, so that the problems that front gas concentration is difficult to predict in tunnel construction and effective measures for reducing construction risks cannot be adopted are solved.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a gas detection system for an excavated tunnel and a method for detecting oil, gas and gas overflow in advance. Background technique [0002] In recent years, with the rapid advancement of railway construction, there are more and more gas tunnels, some of which pass through coal-measure strata, and some encounter gas during construction in non-gas areas and non-coal-measure strata. When the tunnel crosses or is adjacent to coal-measure formations and other gas-bearing formations, there is also a set of mature technologies for gas prediction and assessment. However, for gas in non-coal-measure formations, due to its irregular occurrence, it is impossible to find out during the survey , so there is no unified understanding and no systematic research at present. As for its prediction and evaluation methods, there are no rules to follow. We can only roughly estimat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/22G01V11/00G01N21/45E21F17/18
CPCE21F17/18G01N21/45G01N33/227G01V11/00
Inventor 杨志威刘亚林杨锡斌
Owner 中铁五局集团成都工程有限责任公司
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