山西焦煤科技
山西焦煤科技
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SHANXI COKING COAL SCIENCE & TECHNOLOGY
2015年
1期
4-7
,共4页
深部开采%单孔放水试验%太灰水%防治水
深部開採%單孔放水試驗%太灰水%防治水
심부개채%단공방수시험%태회수%방치수
Deep mining%Single hole drainage experiment%Limestone water in Taiyuan formation%Water pre-vention and control
为查明贺西矿山西组4＃煤层开采受底板高承压太灰含水层的威胁，基于地下水径流理论，对太灰含水层进行了单孔放水试验，得出4＃煤底板太灰含水层的富水性和补给排泄条件。结果表明，太灰含水层岩溶发育且存在一定程度的不均一性，富水性差，地下水径流不畅，且地下水交替和循环条件滞缓，但有较高的水位，位于3＃、4＃煤层之上，有一定的危险性。在此基础上提出了该矿深部开采以疏水降压为主、注浆为辅的底板防治水技术措施，为保障山西组4＃煤安全开采提供了合理依据。
為查明賀西礦山西組4＃煤層開採受底闆高承壓太灰含水層的威脅，基于地下水徑流理論，對太灰含水層進行瞭單孔放水試驗，得齣4＃煤底闆太灰含水層的富水性和補給排洩條件。結果錶明，太灰含水層巖溶髮育且存在一定程度的不均一性，富水性差，地下水徑流不暢，且地下水交替和循環條件滯緩，但有較高的水位，位于3＃、4＃煤層之上，有一定的危險性。在此基礎上提齣瞭該礦深部開採以疏水降壓為主、註漿為輔的底闆防治水技術措施，為保障山西組4＃煤安全開採提供瞭閤理依據。
위사명하서광산서조4＃매층개채수저판고승압태회함수층적위협，기우지하수경류이론，대태회함수층진행료단공방수시험，득출4＃매저판태회함수층적부수성화보급배설조건。결과표명，태회함수층암용발육차존재일정정도적불균일성，부수성차，지하수경류불창，차지하수교체화순배조건체완，단유교고적수위，위우3＃、4＃매층지상，유일정적위험성。재차기출상제출료해광심부개채이소수강압위주、주장위보적저판방치수기술조시，위보장산서조4＃매안전개채제공료합리의거。
In order to find out the threat of No.4 coal seam mining by high pressure the Archaean era limestone aquifer in Shanxi formation of Hexi coal mine,bases on the theory of groundwater flow,single hole drainage experi-ment on the Archaean era limestone aquifer is carried out,obtains the water abundance and the replenishment and drainage conditions of the Archaean era limestone aquifer in No.4 coal seam floor.The results show that the Archaean era limestone aquifer karst development has a certain degree of heterogeneity and the water abundance is poor, groundwater flow is slow,groundwater and cycling conditions are attenuate,but there is a high water level of which is above the coal seam of No.3 and No.4,there is a certain danger.On the basis puts forward the technical measures of floor water prevention and control,it provides the reasonable basis for guarantee safe mining of Shanxi formation No. 4 coal seam.
