人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
15期
86-88
,共3页
罗延婷%王耀邦%岳永峰%张辉%刘振红
囉延婷%王耀邦%嶽永峰%張輝%劉振紅
라연정%왕요방%악영봉%장휘%류진홍
Mini-Diver%降水头注水试验%砂砾石层%渗透系数
Mini-Diver%降水頭註水試驗%砂礫石層%滲透繫數
Mini-Diver%강수두주수시험%사력석층%삼투계수
Mini-Diver%falling head water injection test%sand and gravel layer%pervious coefficient
对格尔木某拟建水库工程坝址区河床的深厚砂砾石层进行钻孔注水试验,在钻孔的各试段同时进行常水头和基于Mini-Diver的降水头注水试验。钻孔注水试验结果表明,基于Mini-Diver的降水头试验在深厚砂砾石层应用上是可行的,而且试验方法更优于常水头注水试验。对于渗透系数较大的地层,采用该方法不仅大大缩短试验时间,而且能获取大量的观测数据和观测水头下降的整个过程,计算的砂砾石层渗透系数也更符合实际。
對格爾木某擬建水庫工程壩阯區河床的深厚砂礫石層進行鑽孔註水試驗,在鑽孔的各試段同時進行常水頭和基于Mini-Diver的降水頭註水試驗。鑽孔註水試驗結果錶明,基于Mini-Diver的降水頭試驗在深厚砂礫石層應用上是可行的,而且試驗方法更優于常水頭註水試驗。對于滲透繫數較大的地層,採用該方法不僅大大縮短試驗時間,而且能穫取大量的觀測數據和觀測水頭下降的整箇過程,計算的砂礫石層滲透繫數也更符閤實際。
대격이목모의건수고공정패지구하상적심후사력석층진행찬공주수시험,재찬공적각시단동시진행상수두화기우Mini-Diver적강수두주수시험。찬공주수시험결과표명,기우Mini-Diver적강수두시험재심후사력석층응용상시가행적,이차시험방법경우우상수두주수시험。대우삼투계수교대적지층,채용해방법불부대대축단시험시간,이차능획취대량적관측수거화관측수두하강적정개과정,계산적사력석층삼투계수야경부합실제。
Borehole-and-water-injection-tests-,-including-constant-head-water-injection-test-and-Mini--Diver-based-falling-head-test,-were-conducted-in-deep-sand-and-gravel-layer-for-a-dam-site-of-a-planned-reservoir-in-Golmud-.Test-results-show-that-the-Mini-Diver-based-falling-head-test-is-practical-in-deep-sand-and-gravel-layer-with-better-effect-than-constant-head-test-.Especially-for-relative-stronger-pervious-layers-,-the-proposed-falling-head-test-could-obtain-a-large-quantity-of-measuring-data-as-well-as-the-hole-head-falling-process-with-less-time-consuming-,-and-the-pervious-coefficient-calculated-by-this-method-is-more-reasonable-.