云南水力发电
雲南水力髮電
운남수력발전
YUNNAN WATER POWER
2014年
6期
11-15
,共5页
常规压水%高压压水%渗透系数%裂隙岩体
常規壓水%高壓壓水%滲透繫數%裂隙巖體
상규압수%고압압수%삼투계수%렬극암체
routine water pressure%high water pressure%permeability coefficient%fissured rock mass
为了确定岩体在不同压力作用下渗透特性的变化规律，琼中抽水蓄能电站针对高压岔管区岩体做了一系列钻孔常规压水和高压压水试验。通过对试验结果进行对比分析，常规压水和高压压水两种不同条件下钻孔压水试验结果的差异性。研究结果表明，裂隙岩体在高压作用下的渗透系数远远大于常规压力作用下的渗透系数。同时结合钻孔声波录像资料分析，结果表明岩体渗透特性的变化规律与岩体裂隙分布以及裂隙连通性、裂隙开度等密切相关。
為瞭確定巖體在不同壓力作用下滲透特性的變化規律，瓊中抽水蓄能電站針對高壓岔管區巖體做瞭一繫列鑽孔常規壓水和高壓壓水試驗。通過對試驗結果進行對比分析，常規壓水和高壓壓水兩種不同條件下鑽孔壓水試驗結果的差異性。研究結果錶明，裂隙巖體在高壓作用下的滲透繫數遠遠大于常規壓力作用下的滲透繫數。同時結閤鑽孔聲波錄像資料分析，結果錶明巖體滲透特性的變化規律與巖體裂隙分佈以及裂隙連通性、裂隙開度等密切相關。
위료학정암체재불동압력작용하삼투특성적변화규률，경중추수축능전참침대고압차관구암체주료일계렬찬공상규압수화고압압수시험。통과대시험결과진행대비분석，상규압수화고압압수량충불동조건하찬공압수시험결과적차이성。연구결과표명，렬극암체재고압작용하적삼투계수원원대우상규압력작용하적삼투계수。동시결합찬공성파록상자료분석，결과표명암체삼투특성적변화규률여암체렬극분포이급렬극련통성、렬극개도등밀절상관。
In order to determine the change law of permeability of rock mass under different pressure a series of both borehole routine water pressure tests and high pressure water pressure tests were conducted for the rock masses in the high pressure bifurcation area of the Qiaongzhong pumped -storage power plant .The difference in the test results between the routine water pressure test and the high pressure water pressure test was deeply discussed by comparison and analysis of the test results .The study results show that the permeability coefficient of the fissured rock mass under high pressure is far exceeds that under conventional pressure .What’s more, the borehole acoustic sounding video recording data analysis reveals that the change law of permeability of rock mass is closely related to distribution of fissures of rock mass , to connection and opening of the fissures .
