Timely yield supporting system for deep high-stress broken-expansion surrounding rocks

Abstract

The invention relates to a timely yield supporting system for deep high-stress broken-expansion surrounding rocks. The system mainly comprises a surrounding rock classification and evaluation submodule RC, a timely yield supporting design submodule SY and a feedback design submodule DR; the surrounding rock classification and evaluation submodule RC is used for performing computation and analysis according to parameter input from an engineering geological survey so as to obtain an overall supporting scheme; the timely yield supporting design submodule SY is used for receiving computed results and the overall supporting scheme obtained from the surrounding rock classification and evaluation submodule RC, performing integrated optimization to obtain an optimal scheme, and then performing construction and supporting tests on a high-stress soft rock roadway; and the feedback design submodule DR is used for performing feedback design on the original supporting scheme by using real-time monitoring data, which is obtained by monitoring the roadway surrounding rocks in real time, in a use process after the supporting is finished, and obtaining an adjusted supporting scheme, wherein the adjusted supporting scheme is used for performing graphic generating and processing mainly through a graphic processing and generating module CAD (Computer-Aided Design), a displayer, graph outputting equipment and the like. The timely yield supporting system disclosed by the invention has a very good effect on optimizing an excavation sequence and supporting after proper yielding and provides safety guarantee for mining.

Description

technical field [0001] The invention relates to a support design system for the surrounding rock of a deep roadway. Background technique [0002] With the development of the economy and the massive consumption of mineral resources, the excavation of roadways is developing more and more deeply. However, due to the increasingly complex geological conditions during excavation and construction, various construction projects encountered unprecedented difficulties. Especially for the excavation and support work in the deep part, due to the large degree of overall fragmentation of the rock mass and the effect of deep in-situ stress, the deformation of the surrounding rock is large and the support fails. This has seriously affected the development progress and production plans of major mining areas. [0003] At present, for the support of deep weak surrounding rock, one or a combination of bolt-net spraying, anchor cable, anchor injection or steel arch frame is generally used; for...

AI Technical Summary

Problems solved by technology

However, there is no uniform measurement standard for yield displacement or release stress, and its systematic research work is rare at home and abroad.

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