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如何扑ֈ施工炚w井?
来源Qwww.laij.net 作者:
贵州M公司 发布日期Q?019-08-14
1.高处之中找低?/span>
Ҏ(gu)地ŞQ在沟谷或者地形低z处扑և。比如在山区打井Q一般地下水都是在沟谷中聚集Q或者涌出地面成为泉水。温?a href="http://www.laij.net/zj/" target="_blank">M编认ؓ在滨h者滨湖的中,׃雨水和地表水的集中渗入,可行成E水透镜体,q种透镜体埋藏于的低z处Q沙漠地区的沙丘地地下水Q在沙丘于沙丘之间的凹地中地下埋藏较?/span>
2.透水性好的岩层中N水性差的岩?/span>
温泉M编认ؓ在岩矌隙发Ԍ透水性好的山?石灰地区Q找_因ؓ岩石透水性好Q降水会随着裂隙渗入C很深Q数十米到数癄Q而山区居民居住比较分散,打这L׃Q目前存在一些困难。因此在q样的地区找水要力L部隔水层或相对隔水层。这P隔水层能L上部渗入的地下水不再l箋下渗Q而集聚在隔水层以上。这U含水层管有时水量不大Q但埋藏,对小型居民点用水可以满要求?/span>
3.透水性差的岩层中N水性好的岩?/span>
在一些火成岩曾或变质岩分布的山区找水Q打井基岩深部如无构造裂隙发Ԍ光水性很差,而基岩上部由于长期遭受风化,形成裂隙发育透水性良好的深厚风化I在风化壳中以及在山坡山麓的残U壤U层中,发现有空隙和裂隙水?/span>
4.分散中找集中
温泉M 在裂隙分布不均匀的岩石中找水Q要利用岩石裂隙的不均匀性。寻找裂隙发育的地方Q比如岩脉附q,岩脉是伴随火山活动入侵周围岩层的岩体。因为岩脉入侵,打井让周围的岩石破碎Q就会生较密集的裂隙从而储存地下水?/span>
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