Multi-parameter comprehensive rock burst predicting method based on geophysical exploration method

• Main Authors: ZHANG LEWEN, QIU DAOHONG, MOU XINWEI, LI SHUCAI, SU MAOXIN, XUE YIGUO, ZHANG NAN
• Format: Patent
• Language: English
• Published: 27.05.2015
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention discloses a multi-parameter comprehensive rock burst predicting method based on a geophysical exploration method. The multi-parameter comprehensive rock burst predicting method comprises the following steps: 1, according to principal stress data of engineering field measurement points, by virtue of a radial basis function neural network, inverting an initial geostress field of a computational domain to obtain high stress area distribution of a research object; 2, according to the high stress area distribution obtained in the step 1, and in combination with on-site rock mechanic tests, distinguishing the rock burst strengths of high stress areas; 3, by using a TSP203 system, detecting high-risk rock burst areas to obtain stratigraphic lithologic conditions in front of a working face, and in combination with geostress field inversion data, precisely predicting the rock burst strength within a long distance in front of the working face. A predicting result obtained in the multi-parameter comprehensive rock burst predicting method can provide a reference for on-site rock burst prediction of engineering geological personnel; in practical application process, by combining an on-site excavating result and the predicting result, comprehensive analysis can be performed to determine the rock burst condition in front of the working face.