1、 英语原文 Mechanism and control of ground residual deformation over longwall goaf GUO Guang-li, WEI Kuang-ling, MU Bin-shan, Gao Jing-xiang, H E Guo-qing Abstract: The deformation of rupture rock mass in goaf is the main reason for ground terrene residual deformation.Based on field measurement and simil
2、ar material simulation , the rupture strata structure and its residual deformation characteristics in the longwall goaf and its overburden are pointed out. On the basis of these achievements , the authors propose the mechanism of strengthening rupture rock mass ground and the control measures of def
3、ormation resistant structure. Using the case of main coal building in Xinzhuangzi Coal Processing Plant , this paper introduces the influence of strengthening rupture rock mass and deformation resistant structure. Key words: abandoned goaf ; residual deformation ; rupture rockmass ; deformation mech
4、anism; deformation control 1. INTROD UCTION The movement and dest ruction of overburden layers caused by underground mining changed overburden engineering geology characteristics and formed the engineering geology condition of extracttion subsidence rupture rock mass ground. Even by long time natura
5、l pressure after mining , these phenol mena of residual cavity , bed separation ,mining induced fissure can be seen in goaf and overburden. Subcompaction and gap with saturated water can also be seen in caved goaf . Under the influence of inner and external factors (for example ,ground stress , unde
6、rground water , superimposed load of new building) , the rupture rock mass will produce second movement and deformation , which is a serious threat to ground buildings safety.This is the main potential safety hazard that restrains large scale application of terrene in abandoned goaf .The deformation of rupture rock mass in goaf is the main reason for residual deformation in collapsed area terrene. Clarifying structure and deformation characteristic of rupture rock mass in goaf , predicting terre
