古河床

乌鲁木齐平原区的古河床

The Ancient River-bed in the Alluvial plain of Urumqi River

工作面上方隐伏的南北方向的古河床切割深沟或垂向导水裂缝带；

Causes of forming water conductive channels come from insidious old-aged riverbed dough incised on south to norths way over work face , or lie water conductive channels at vertical way .

文章通过工程实例，重点介绍了雷达技术在灌浆检测、洞穴勘探、水库大坝隐患调查、岩体完整性评价以及古河床探测等方面的应用。

By case histories , this paper stresses to introduce the application of radar technique on the sides of grouting examination , cave exploration , investigation of hidden trouble of reservoir and dam , assessment of the integrity of rock mass and exploration of paleo-riverbed etc.

电法勘探在寻找富含水构造、了解岩溶发育范围、确定古河床位置、推断砂砾层厚度、解决水文地质问题中发挥了积极作用，取得了一些成效。

The electrical survey plays an active role in prospecting for water-rich structure , understanding the extent of karst development , locating the palaeochannel , deducing the thickness of sandy gravel and solving the hydrogeological problems , Some results have been obtained by using this method .