Method of analyzing development direction of main joints of drilled rock

A technology of development direction and joints, which is applied to the analysis of materials, material analysis through optical means, and measurement devices, etc., can solve the problems of joint occurrence analysis and the inability to determine the development advantages of joint occurrences, etc., and achieve the effect of simple method

Inactive Publication Date: 2017-11-24
CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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Problems solved by technology

[0004] The current "Geophysical Prospecting Regulations for Water Conservancy and Hydropower Projects" SL326-2005, "Geophysical Prospecting Regulations for Hydropower and Hydropower Projects" DL/T5010-2005 and other corresponding regulations and commonly used data processing

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  • Method of analyzing development direction of main joints of drilled rock
  • Method of analyzing development direction of main joints of drilled rock
  • Method of analyzing development direction of main joints of drilled rock

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[0031] The method for analyzing the development direction of the main joints of the drilled rock mass of the present invention comprises the following steps:

[0032] A. Through the borehole TV observation, describe the rock mass joint tendency and dip angle;

[0033] B. Group the rock mass joints according to the inclination and azimuth angle, find out the average inclination and the number of joints of each group of joints, group by the azimuth angle, the average inclination and the number of joints, compile the coordinate file in the form of a table, and draw the drilled rock mass joints Tendency to rose diagram;

[0034] C. Corresponding to the grouping of rock mass joint inclination azimuth angles, obtain the average inclination angle of each group of joints, group by azimuth angle, average inclination, and average inclination angle, compile coordinate files in tabular form, and draw the rose diagram of drilling rock mass joint inclination angle;

[0035] D. Analyze the ...

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Abstract

The invention discloses a method of analyzing the development direction of main joints of a drilled rock. The method comprises the following steps: observing and describing the inclination and tilt angles of rock joints through a borehole television; dividing the rock joints into different groups according to the azimuth angles, calculating the average inclination, average tilt angle, and joint number in each group; drawing joint inclination and tilt angle rose diagram of drilled rock, and analyzing the development direction of main joints. Joint rose diagram is one mode of joint statistics. The method is simple and visual, the development direction of main joints can be shown clearly, and the method is useful for analysis of regional structure, rock engineering classification, and rock stability evaluation.

Description

technical field [0001] The invention relates to geological investigation and analysis of water conservancy projects, in particular to a method for analyzing the development direction of main joints of bored rock mass. Background technique [0002] The development of regional joints is the key research object of hydraulic engineering geological survey, and its development characteristics have a direct impact on hydraulic design schemes. For example, areas with tensional joints are prone to leakage, and joints with gentle dip angles along the river are likely to cause hydraulic structures. Swipe etc. Borehole TV observation is one of the routine methods of hydrogeophysical prospecting, such as figure 1 As shown, the basic principle is to use a special reflective prism imaging technology in the borehole, use the computer to control the image acquisition and processing, realize the conversion between analog and digital, and capture the ring image taken from the conical reflecto...

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Application Information

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IPC IPC(8): G01N21/17G01N21/84
CPCG01N21/17G01N21/84
Inventor 王清玉王志豪张美多段伟周振广刘栋臣王杰何灿高赵吉祥孙治新
Owner CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES
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