摘要
通过煤洞地质调查与测量，认为影响021塔地基稳定的是LD2等煤洞采空区垮塌造成的．对LD2等煤洞采空区顶板的稳定性分析和计算得出，当煤层顶板埋藏深度H＜H0（临界深度）和H0＜H＜1．5H0时，采空区顶板不稳定和顶板稳定性差，建议进行021塔地基加固处理．
The subsidence and fracturing of surface in the vicinity were caused by miningin coalpit,so that the foundation of tower 021 subsided in 7-10 cm in resulting that the elec-tricity manage branch put forward a treatment plan of changing the line. After investigationand measurement into the coalpit geology,it is clean that the effect stability of the tower iscaused by excavation collapse in coalpit LD2,the stability conditions are obtained from thestability analysis and calculation to the pit roof. Suggestion that the foundation of tower 021be consolidated is presented according to the conditions as a treatment measure.
出处
《贵州水力发电》
1997年第1期24-26,60,共4页
Guizhou Water Power
关键词
021塔
煤洞
采空区
地基稳定性
评价
tower 021, coalpit, excavation, ground stability, assessment
