DOI: 10.11799/ce201602014
Study on mechanism and control technology of floor heave in soft rock roadway with large section
DENG Bo-tuan
SU San-qing
REN Jian-xi
MENG Chang
Abstract：Depended on the belt conveyer lane in Wenjiapo coal mine, the floor heave mechanics of large section soft rock roadway was researched using theoretical analysis and lab experiment. The type of floor heave was determined as hydro-expansiveness. The floor heave support scheme was proposed and the supporting parameters were given. With the FLAC3D numerical simulation, the feasibility of floor heave support program proposed was verified. The result of industrial test indicated that, the floor heave value was 22?4mm, which significantly reduced after floor heave treatment. The floor deformation was controlled effectively, meeting the deformation requirements of mine block.
Keywords：buried depthlarge sectionsoft rock roadwayfloor heave mechanismcontrol technology
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 43-46 )