山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2012年
17期
107-108
,共2页
复杂应力%软岩巷道%支护%FLAC
複雜應力%軟巖巷道%支護%FLAC
복잡응력%연암항도%지호%FLAC
complicated stress%soft rock roadway%support%FLAC
针对西北某煤矿2号巷道支护工程，提出了支护方案，并进行了FLAC数值模拟研究，研究表明，导致该巷道出现顶板下沉量大、底板强烈膨胀、两帮位移大的变形特征的主要原因是巷道埋深大、采空区矿山压力显现显著，进而确定了锚注锚网联合支护作为2号巷道支护方案，监测结果表明，该支护方案合理，效果良好。
針對西北某煤礦2號巷道支護工程，提齣瞭支護方案，併進行瞭FLAC數值模擬研究，研究錶明，導緻該巷道齣現頂闆下沉量大、底闆彊烈膨脹、兩幫位移大的變形特徵的主要原因是巷道埋深大、採空區礦山壓力顯現顯著，進而確定瞭錨註錨網聯閤支護作為2號巷道支護方案，鑑測結果錶明，該支護方案閤理，效果良好。
침대서북모매광2호항도지호공정，제출료지호방안，병진행료FLAC수치모의연구，연구표명，도치해항도출현정판하침량대、저판강렬팽창、량방위이대적변형특정적주요원인시항도매심대、채공구광산압력현현현저，진이학정료묘주묘망연합지호작위2호항도지호방안，감측결과표명，해지호방안합리，효과량호。
In light of the northwest coal mine No. 2 roadway support engineering, the paper puts forward support scheme, and carries out FLAC numerical simulation research. Research shows that deep-lying roadway and distinct mined-out pressure lead to a series of problems, such as large subsidence of the roadway roof, strong expansion of bottom plate, and large two-side displacement. In the end, it determines anchor grou- ting support as No. 2 roadway support scheme. Supervision results show that the support scheme is rational and effective.
