煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2014年
6期
87-89,102
,共4页
巷式充填%矿压规律%实测分析
巷式充填%礦壓規律%實測分析
항식충전%광압규률%실측분석
roadway stowing%underground pressure rule%measurement analysis
为保证试采面的安全回采，研究巷柱式充填矿压规律，对王台铺煤矿充填试验面的矿压显现进行了实测研究。通过矿压数据分析可知，工作面开采期间，支巷顶板锚杆受力变化平稳，增幅较小；煤柱应力呈现增大—减小—增大的变化趋势，邻近支巷开采时，煤柱应力会迅速增加，支巷充填可以增强煤柱的承载能力；支巷中部离层值、顶板下沉值和两帮移近量均大于两端头。
為保證試採麵的安全迴採，研究巷柱式充填礦壓規律，對王檯鋪煤礦充填試驗麵的礦壓顯現進行瞭實測研究。通過礦壓數據分析可知，工作麵開採期間，支巷頂闆錨桿受力變化平穩，增幅較小；煤柱應力呈現增大—減小—增大的變化趨勢，鄰近支巷開採時，煤柱應力會迅速增加，支巷充填可以增彊煤柱的承載能力；支巷中部離層值、頂闆下沉值和兩幫移近量均大于兩耑頭。
위보증시채면적안전회채，연구항주식충전광압규률，대왕태포매광충전시험면적광압현현진행료실측연구。통과광압수거분석가지，공작면개채기간，지항정판묘간수력변화평은，증폭교소；매주응력정현증대—감소—증대적변화추세，린근지항개채시，매주응력회신속증가，지항충전가이증강매주적승재능력；지항중부리층치、정판하침치화량방이근량균대우량단두。
In order to ensure safe mining and research underground pressure of roadway stowing mining, underground pressure behavior was measured in stowing mining face of Wangtaipu Colliery. Analysis of underground pressure data showed that stress variation of roof anchored bolt in branch roadway was stable and its amplification was small during mining period. Stress of coal-pillar took on rise-fall-rise tendency. When mining was near branch roadway, coal-pillar stress rapidly rose, so stowing branch roadway could improve loading capacity of coal-pillar. Separation value at middle of branch roadway, and roof subsidence and two-side convergence value were larger than those at two ends.
