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Method for testing rock mass mechanics parameters based on explosion seismic wave space-time attenuation law

A technology of rock mechanics and seismic waves, applied in the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, process detection response signals, etc.

Active Publication Date: 2011-08-03
FUJIAN MAKENG MINING CO LTD
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the existing rock mass mechanics parameter test method and provide a rock mass mechanics parameter test method based on the time-space attenuation law of blasting seismic wave

Method used

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  • Method for testing rock mass mechanics parameters based on explosion seismic wave space-time attenuation law
  • Method for testing rock mass mechanics parameters based on explosion seismic wave space-time attenuation law
  • Method for testing rock mass mechanics parameters based on explosion seismic wave space-time attenuation law

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Embodiment Construction

[0025] The invention is used to carry out a private test in a super large open-pit copper mine in China, and provides rock mass mechanical parameters for slope stability analysis.

[0026] Data test:

[0027] The first step: test the basic mechanical parameters and physical parameters of the rock block, select a representative rock block in the test area, process it into a standard rock sample, and test the elastic modulus, Poisson's ratio and density of the rock block.

[0028] Step 2: Test the viscosity coefficient of the rock block, and select an area with representative lithology and flat surface in the test area. The three-component acceleration sensor is arranged on the surface. The x direction of the sensor is consistent with the direction of the sensor, the y direction is perpendicular to the direction of the sensor, and the z direction is the vertical direction. The parameters of the sensor are: charge sensitivity 10.427~14.091pC / ms -2 , frequency response 0.2 ~ 5kHz; ...

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Abstract

The invention relates to a technology for testing rock mass mechanics parameters, in particular to a method for testing rock mass mechanics parameters based on an explosion seismic wave space-time attenuation law. The method comprises the steps of data testing and test data processing; and geometric parameters and mechanics parameters of rock mass can be obtained by corresponding testing and calculating. The parameters mainly comprise the viscosity coefficient of the rock mass, the equivalent elastic modulus of the rock mass, an azimuth angle of a structural plane, the rigidity of the structural plane, the thickness of the structural plane, and the elastic modulus of the structure plane; and the relevant parameters of the rock mass are given for analysis of slope stability.

Description

technical field [0001] The invention relates to a rock mass mechanics parameter testing technology, which is a rock mass mechanics parameter testing method based on the time-space attenuation law of blasting seismic waves. Background technique [0002] At present, my country's engineering construction is developing rapidly, and more and more transportation projects, water conservancy and hydropower projects, energy projects, mineral resources mining projects, and national defense projects are built in areas with poor geological conditions. The construction of 49 large-scale hydropower stations will be started before, the national railway operating mileage will increase to 100,000 kilometers in 2020, and a highway network with a mileage of 85,000 kilometers will be built before 2030; 38% are invested in infrastructure construction such as railways and highways. These upcoming large-scale engineering constructions will encounter complex rock masses to varying degrees, and their ...

Claims

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Application Information

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IPC IPC(8): G01N29/44G01N29/11
Inventor 王观石胡世丽
Owner FUJIAN MAKENG MINING CO LTD
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