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On-site tunnel real-time surrounding rock classification system and method

A kind of surrounding rock classification, on-site technology, applied in the direction of analyzing materials, soil material testing, instruments, etc., can solve the problems of high dispersion, difficulty in providing construction and support guidance, inability to obtain the degree of dispersion of test data in time, and poor flexibility in indoor tests. , to achieve the effect of improving efficiency and flexibility, ensuring construction safety, and high work efficiency

Inactive Publication Date: 2017-04-26
SHANDONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, the degree of dispersion of test data cannot be obtained in time in the indoor test, resulting in too high dispersion to provide effective construction and support guidance; second, when performing real-time classification of multiple tunnels, it is necessary to obtain a large number of test pieces and bring them back to the room for testing , in the case of similar geological conditions, it is easy to make mistakes in the grouping of the test pieces, which will affect the test results; third, the flexibility of the indoor test is poor. cause lower work efficiency

Method used

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  • On-site tunnel real-time surrounding rock classification system and method
  • On-site tunnel real-time surrounding rock classification system and method

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Experimental program
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Effect test

Embodiment 2

[0076] The difference between this embodiment and embodiment 1:

[0077] A vertical bar is arranged on the surface of the carrying platform, and a hook is provided on the top of the vertical bar. The geological compass, hand hammer and lighting lamp are hung on the vertical bar through the hook, so as to avoid the accidental fall of the lighting lamp or the hand hammer during the movement of the carrying platform. .

Embodiment 3

[0079] A real-time surrounding rock classification method for an on-site tunnel, the specific steps of the method are as follows:

[0080] 1) Through hammering and visual observation, qualitatively divide the surrounding rock near the tunnel face, determine the groundwater state correction coefficient K1, and record the groundwater state correction coefficient K1, preferably recorded in the computer for data analysis;

[0081] 2) Count the number of volumetric joints Jv and the number of structural face groups Jn, measure the occurrence of the weak structural face with a geological compass, determine the correction coefficient K2 of the influence of the occurrence of the weak structural face, and record the correction coefficient K2 of the influence of the occurrence of the weak structural face in the computer;

[0082] 3) Determine the initial ground stress state correction coefficient K3 according to the "Design Rules for Highway Tunnels" and relevant materials of constructio...

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Abstract

The invention discloses an on-site tunnel real-time surrounding rock classification system and a method. The system includes a bearing platform, the bearing platform bears a measuring ruler, a point load tester for conducting point load test on an on-site surrounding rock sample, and a geological compass for determining weak structural plane occurrence, the measuring ruler, the point load tester and the geological compass are detachably disposed on the bearing platform, and the lower part of the bearing platform is provided with moving components for driving the bearing platform to move. The setting of the whole system is convenient for moving a measurement component to the site for real-time measurement, realizes real-time classification work of tunnel surrounding rock, effectively improves the efficiency of tunnel surrounding rock classification work, improves the flexibility of classification work, and can acquire real-time feedback of rock mass classification near a tunnel face, thus being convenient for directly carrying out follow-up work.

Description

technical field [0001] The invention relates to the field of tunnel engineering measurement, in particular to a real-time surrounding rock classification system and method for an on-site tunnel. Background technique [0002] Engineering rock mass refers to the rock mass within the influence range of rock engineering, and its hardness and integrity are its inherent attributes. In order to judge the stability of tunnel surrounding rock, guide safe construction, and improve the economic effect during tunnel construction, real-time surrounding rock classification has become an indispensable link in tunnel engineering. According to the "Engineering Rock Mass Classification Standard", the revised BQ value is often used in tunnel engineering to classify the tunnel surrounding rock. [0003] In the process of implementing surrounding rock classification, taking back a large number of samples for indoor testing is a means of classification. But indoor testing has its inherent drawb...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N3/08
CPCG01N33/24G01N3/08G01N2203/0019G01N2203/0252G01N2203/0676G01N2203/0682
Inventor 许振浩王文扬苏国举何树江高斌宋贵杰张文坤周轮朱兴礼
Owner SHANDONG UNIV
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