Roadway surface displacement and deep displacement same-position measurement method

A technology of deep displacement and surface displacement, which is applied in the field of co-location measurement of deep displacement and surface displacement of roadway, can solve the problems of absolute value error of deep displacement, and achieve the effects of accurate results, wide practicability and simple operation

Inactive Publication Date: 2014-07-30
CHINA UNIV OF MINING & TECH
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Problems solved by technology

However, in the existing arrangement of measuring stations, the roadway surface displacement and deep displacement measuring stations are located on different sections, but because the surface displacement values ​​of the roadway on different sections are different, this will make the absolute value of the deep displacement obtained. error

Method used

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  • Roadway surface displacement and deep displacement same-position measurement method

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example 1

[0027] Example 1: During the actual measurement of the surface displacement and deep displacement of the roadway, a roadway surface displacement and deep displacement co-location measurement station is arranged at a distance of 300m from the working face of the transportation roadway. Record the surface displacement and deep displacement of the roadway at the same time every day; in the first measurement, use the "cross" observation method to measure the surface displacement value B of the first observation 1 =1926mm, as the initial value of the surface displacement, at the same time by observing the scale of the deep displacement meter, read the relative value S of the deep displacement of the tunnel during the first observation of the same section of this station Read 1 =0mm as the initial value of the deep displacement. Also use the "cross" observation method, the surface displacement value B at the fifth observation 5 =1855mm, the relative value S of the deep displacement of...

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Abstract

Provided is a roadway surface displacement and deep displacement same-position measurement method. A roadway is at least provided with an observation station, holes are drilled in a top board and the middles of two sides of the same vertical fracture surface of each observation station, and deep displacement meters are installed into the holes respectively; roadway surface displacement observation points are marked on the deep displacement meters, and the roadway surface displacement is measured according to a cross observation method; according to the formula Si=|(Bn-B1)|-(Sni-Sli), the real deep displacement value is measured out. Conventional roadway surface displacement and deep displacement observation stations are arranged on two fracture surfaces, and the real deep displacement value is not accurate directly through the surface displacement observation value according to the formula Si=|(Bn-B1)|-(Sni-Sli), so that the roadway surface displacement and deep displacement observation station is installed on one fracture surface, errors caused by measurement data of different fracture surfaces are eliminated, and the result is more real. The method is easy to operate, safe, reliable, high in accuracy and wide in practicability and popularization.

Description

Technical field [0001] The invention is suitable for the technical field of roadway rock pressure monitoring, and relates to a method for measuring the surface displacement and deep displacement of the roadway in the same position. Background technique [0002] With the rapid development of the coal industry, the production capacity of mines has gradually increased, and the working face equipment has developed in the direction of large-scale, heavy-duty, and automation. It is indispensable to monitor the roadway support design. The important method is mine pressure monitoring. The high accuracy of supporting rationality verification is particularly important. The content of mine pressure monitoring of roadway mainly includes surface displacement, deep displacement, bolt (cable) force, and detection of surrounding rock structure variation. Among them, the roadway surface displacement is mainly measured by the "cross" observation method, and the actual deep displacement value requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/02
Inventor 张益东金志远程亮季明贾锦波张猛张春喜崔满堂张明磊郭红军
Owner CHINA UNIV OF MINING & TECH
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