Stability and Deformation Analysis for Excavation and Backfilling of Fushun West Open-pit Coal Mine

被引：3

作者：

Yan Yongcheng ^{[1
]}

Ling Xianzhang ^{[1
]}

Zhang Feng ^{[1
]}

Wang Jiahui ^{[1
]}

机构：

[1] Harbin Inst Technol, Harbin 150090, Peoples R China

来源：

ADVANCES IN CIVIL AND INDUSTRIAL ENGINEERING, PTS 1-4 | 2013年 / 353-356卷

关键词：

open-pit coal mine slope; ground deformation; numerical simulation; fault; interface model;

D O I：

10.4028/www.scientific.net/AMM.353-356.751

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Taking section W400 of Fushun west open-pit coal mine for the research, the interface model of fracture zone and surrounding rock was established. FLAC(3D) is used to analysis the influence of excavation and backfill of open-fit coal mine to the slope stability and deformation. The numerical results and analysis show that: (1) when the open-pit coal mine slope is excavated to final production line, the safety coefficient is 2.98, with the excavation, the deformation of the Fushun No.1 Refinery Factory area increases. (2) With the increase of backfilling, the slope coefficient increases to 3.32, this will reduce the deformation of the Fushun No.1 Refinery Factory area. Furthermore, the positions of the dangerous slip surface and serious deformation part of factory area should be regards as key areas. These conclusions could provide technical basis for the stability analysis of Fushun west open-pit coal mine.

引用

页码：751 / 755

页数：5