DOI: 10.11799/ce201703011
Control technology of floor heave based on bolt-concrete antiarchcomposite structure under high geostress
ZHENG Wen-xiang
HU Yao-qing
Abstract：Based on the geological data and characteristic of floor heave of 1# roadway in S6 district of Changcun Mine,support scheme in rock and floor heave control was proposed.Mechanics theory was used to analyze the stability of concrete antiarch composite structure and floor surrounding rock,and the design parameters of concrete structure were tested,which showed the concrete antiarch composite structure was stable and the design parameters of concrete antiarch composite structure were reasonable;according to the numerical simulation analysis of the support scheme and situ engineering tests,actual amount of floor heave was 135~194mm,far less than 500mm that using the original support scheme,and the floor heave support structure was stable,not within the range of limit load,feasibility of the scheme was proved for floor heave control with bolt-concrete antiarch structure.
Keywords：high geostressbolt-concrete antiarch composite structurefloor heavesupport schemesurrounding rock control
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 36-39 )