Method for comprehensively forecasting approximately horizontal stratum rock burst in high geostress regions

Abstract

The invention belongs to the technical field of underground engineering, and particularly relates to a method for forecasting rock burst. A method for comprehensively forecasting the approximately horizontal stratum rock burst in high geostress regions comprises the following steps of: A, conducting a rock mechanics test, and preliminarily estimating the rock burst intensity of a project region; B, measuring the three-dimensional geostress of the project region, and then estimating the rock burst intensity of the project region; C, synthesizing geologic sketches, engineering geophysical exploration, advance borehole and other results, building the three-dimensional numeric calculation model of the project region, combining steps A and B, and preliminarily realizing the macroscopic subregional forecasts of rock burst in the project region; and E, comprehensively evaluating, and forecasting the parts of the project region where rock burst is likely to occur and the intensity of the rock burst. The method is based on rock mechanics tests, site geological conditions and computer simulation to carry out multi-factor comprehensive forecast on the underground rock burst at the deep approximately horizontal stratum region; and practical applications show that the method has the characteristics of scientific principle and accurate forecasting.

Description

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AI Technical Summary

Benefits of technology

This technology uses various factors such as soil properties or hydraulic fracturing techniques for predicting future tunneling movements caused by explosions from underground structures like oil well drilling operations. It can accurately estimate these movement patterns based on physical experiments conducted at different depth levels below ground level (the surface) with high accuracy.

Problems solved by technology

This patented technical solution describes how rocks may break down when subjected to external pressure during construction operations. However, this breaking event has potential hazards for workers who work near them while doing other tasks. Current techniques involve analyzing multiple variables like soil strength, creature size distribution, formations' composition, and environmental impacts over time (such as water level). These approaches lack accurate predictions because they cannot fully account for all important factors involved in their behavioral response.

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