本文選題：特厚沖積層　切入點(diǎn)：地表沉降　出處：《河南理工大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年03期 　論文類型：期刊論文

【摘要】：為解決李糧店煤礦特厚沖積層突發(fā)涌水、潰砂造成的地面快速下沉問(wèn)題,采取井筒緊急填沙、注水的處置措施,持續(xù)監(jiān)測(cè)受影響區(qū)域的地表沉降,有效地減緩了地表下沉。研究結(jié)果表明:處于特厚沖積層層位的井筒內(nèi)壁發(fā)生涌水、潰砂災(zāi)害時(shí),對(duì)礦井井筒進(jìn)行充填和水體回灌可以有效地遏制地表沉降;沉降范圍以出水點(diǎn)為中心,向四周方向近似呈圓形沉降發(fā)展,最大下沉值為2.7 m,沉降面積約為121 853 m~2,周長(zhǎng)約為1 455 m;失水地表沉降沒(méi)有影響到煤礦附近高鐵和高速的安全運(yùn)行。
[Abstract]:In order to solve the problem of rapid ground subsidence caused by sudden flooding of thick alluvium in Lililiangdian Coal Mine, the emergency sand filling in wellbore and the disposal of water injection are adopted to continuously monitor the surface subsidence in the affected area. The results show that water gushing occurs on the inner wall of the shaft in the thick alluvial layer, and when the sand collapse disaster occurs, filling the shaft and recharging the water body can effectively restrain the surface subsidence. The settlement range is centered on the point of water, and is approximately circular in the direction of settlement. The maximum subsidence value is 2.7 m, the settlement area is about 121,853 mm2 and the circumference is about 1,455 m.The ground subsidence of water-losing surface does not affect the safe operation of high-speed iron and high speed in the vicinity of the coal mine.
【作者單位】： 河南理工大學(xué)能源科學(xué)與工程學(xué)院;煤炭安全生產(chǎn)河南省協(xié)同創(chuàng)新中心;鄭州煤炭工業(yè)(集團(tuán))有限責(zé)任公司;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51374092) 國(guó)家自然科學(xué)煤炭聯(lián)合基金重點(diǎn)資助項(xiàng)目(U1261206)
【分類號(hào)】：TD325.4;TD745

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