%0 Journal Article
%T NUMERICAL SIMULATION OF DYNAMIC FALLING OF OVERLYING ROCKS AND ABUTMENT PRESSURE IN SURROUNDING ROCKS FOR FULLY-MECHANIZED TOP-COAL CAVING STOPE<br>综放采场覆岩冒落与围岩支承压力动态分布规律的数值模拟
%A Pu Hai
%A Miao Xiexing
%A <br>浦海
%A 缪协兴
%J 岩石力学与工程学报
%D 2004
%I 
%X Based on the key layer theory,the falling process of the overlying rocks in fully-mechanized top-coal caving stope is simulated using the RFPA2000 software. The dynamic distribution patterns of the caving of theoverlaying rocks and the abutment pressure in surrounding rocks are analyzed. The distribution of the abutment pressure in the goaf is obtained by numerical simulation for the first time. According to the calculated results,the cracked rocks in the goaf can be divided into three areas,namely,natural accumulation area,structure supporting area and steady compaction area. The findings are of important value for describing the compaction state and analyzing the seepage features of the cracked rock in the goaf.
%K minimg engineering
%K fully-mechanized top-coal caving mining
%K overlying rock movement
%K abutment pressure
%K numerical simulation<br>矿业工程
%K 采场
%K 覆岩移动
%K 支承压力
%K 数值模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=E1B8B66CCA31DC6C&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=DF92D298D3FF1E6E&sid=7D34DED3F877BD2D&eid=6BF76AE9E086F688&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=12&reference_num=9