CAJ | 학술논문

针对太行山东簏丘陵区地下水能否可持续开发利用问题,基于探采结合的大量深井抽水及水位恢复试验资料,采用量化对比分析方法,揭示了研究区基岩裂隙水赋存非均一性和开采易疏干性特征.研究结果表明,不仅不同井位区之间地下水赋存具有空间非均一性,而且,各井孔内的不同深度也存在明显差异:在抽水时间小于70 min时段, ZKs23井的水位降深大于 ZKs22井的降深;70 m in之后,随着抽水时间增加, ZKs22井的水位降深大于 ZKs23井的降深,且二者之差逐渐增大,表明ZKs22井位的含水系统上部富水性较强、下部富水性较弱, ZKs23井位的含水系统上部富水性较弱、下部富水性较强.不同井位含水系统具有不同的开采易疏干性:随着抽水试验轮次的增加, ZKs22井的最大水位降深和水位恢复所需时间依次增加,但每次水位都能完全恢复至初始水位状态;ZKs23井的水位未能完全恢复至初始水位状态,且至初始水位的距离依次增大,但每次水位恢复至稳定状态所用的时间没有明显变化.因此,合理设计井的结构与布局是防止山丘区地下水疏干性开采的关键.
침대태행산동록구릉구지하수능부가지속개발이용문제,기우탐채결합적대량심정추수급수위회복시험자료,채용양화대비분석방법,게시료연구구기암렬극수부존비균일성화개채역소간성특정.연구결과표명,불부불동정위구지간지하수부존구유공간비균일성,이차,각정공내적불동심도야존재명현차이:재추수시간소우70 min시단, ZKs23정적수위강심대우 ZKs22정적강심;70 m in지후,수착추수시간증가, ZKs22정적수위강심대우 ZKs23정적강심,차이자지차축점증대,표명ZKs22정위적함수계통상부부수성교강、하부부수성교약, ZKs23정위적함수계통상부부수성교약、하부부수성교강.불동정위함수계통구유불동적개채역소간성:수착추수시험륜차적증가, ZKs22정적최대수위강심화수위회복소수시간의차증가,단매차수위도능완전회복지초시수위상태;ZKs23정적수위미능완전회복지초시수위상태,차지초시수위적거리의차증대,단매차수위회복지은정상태소용적시간몰유명현변화.인차,합리설계정적결구여포국시방지산구구지하수소간성개채적관건.
@@@@In terms of the issues of sustainable utilization of groundw ater in the hil y area of the Taihang mountains piedmont, the characteristics of non2uniformity and vulnerability of the aquifers to dew atering in the area w ere investigated based on the quan2 titative comparison analysis of the pumping and recovery test data from the deep bedrock fissure groundwat er w ells. The re2 search results showed t hat the spatial non2uniformity exists not only in the groundwater storage betw een different w ells, but al2 so in different dept hs of t he same well. For the pumping t ime less than 70 minutes, t he drawdow n of groundwater level in the well ZKs23 was larger than that in t he well Zks22. However, after 70 minutes of pumping, the draw down of groundw ater level in the w el ZKs22 w as larger than that in the w ell ZKs23, and the drawdow n difference betw een t he tw o w el s increased gradually wit h the increasing pumping time. These results indicated that the upper aquifer of w el ZKs22 has more w ater than the low er aquifer of well ZKs22, while the upper aquifer of w ell ZKs23 has less w ater than the lower aquifer of w el ZKs23. T he aquifer systems in different w el s had different vulnerability of groundwater to dewatering. With the increasing of pumping time, the maximum draw down and the time for recovery of groundwater level in the w ell ZKs22 increased, but the groundw ater level can be ful y restored to the initial level. H ow ever, the groundw ater level cannot recover to the initial level in the w el ZKs23, and the difference between the recovered groundw ater level and initial level increased as well, but the recovery t ime of groundwater level to a stable level w ere similar for different pumping t ests. Therefore, the reasonable design and layout of w el s is important to prevent the aquifers to dewatering in t he hilly area.