矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2013年
2期
8-11
,共4页
采动影响稳定区%有效卸压范围%煤层气%储层空间%采场裂隙带
採動影響穩定區%有效卸壓範圍%煤層氣%儲層空間%採場裂隙帶
채동영향은정구%유효사압범위%매층기%저층공간%채장렬극대
stabile mining-affected region%effective pressure relief range%coal-bed methane%methane reservoir space%fracture zone around stope
通过分析采动稳定区覆岩移动相似模拟试验数据,发现采动稳定围岩区卸压范围包括过渡卸压区域和有效卸压区域两部分,其中有效卸压区域也就是采动稳定区煤层气的储层空间.在此基础上,分别对采空区顶底板裂隙带的高度及范围进行了分析,总结出采动稳定区围岩有效卸压范围的确定方法及计算公式,为采空区可抽采煤层气资源储量评估及其邻近煤层原始瓦斯参数有效测定范围的确定提供了依据.
通過分析採動穩定區覆巖移動相似模擬試驗數據,髮現採動穩定圍巖區卸壓範圍包括過渡卸壓區域和有效卸壓區域兩部分,其中有效卸壓區域也就是採動穩定區煤層氣的儲層空間.在此基礎上,分彆對採空區頂底闆裂隙帶的高度及範圍進行瞭分析,總結齣採動穩定區圍巖有效卸壓範圍的確定方法及計算公式,為採空區可抽採煤層氣資源儲量評估及其鄰近煤層原始瓦斯參數有效測定範圍的確定提供瞭依據.
통과분석채동은정구복암이동상사모의시험수거,발현채동은정위암구사압범위포괄과도사압구역화유효사압구역량부분,기중유효사압구역야취시채동은정구매층기적저층공간.재차기출상,분별대채공구정저판렬극대적고도급범위진행료분석,총결출채동은정구위암유효사압범위적학정방법급계산공식,위채공구가추채매층기자원저량평고급기린근매층원시와사삼수유효측정범위적학정제공료의거.
@@@@Through the analysis on the data obtained from the similarity simulation tests of the overburden rock movement in the stable mining-affected region,it was found that the pressure relief range of the stable mining-affected surrounding rock region was composed of the transitive pressure relief region and effective pressure relief region,and the effective pressure relief region was just the methane reservoir space in the stable mining-affected region. On this basis,analysis was carried out respectively on the height and range of both the roof and floor fracture zones in the gob,and the determination method and calculation formula for the effective pressure relief range of the stable mining-affected surrounding rock were summarized,all of these provided the basis for the estimation of the coal-bed methane reserves in the gob and the determination of the effective detection range of the original gas parameters in its adjacent coal seam.
