库尔勒—鄯善输油管道的坎儿井穿越施工

Kan Er well crossing construction of Ku Erle to Shanshan oil pipeline

本文报道管道穿越埋深3．5～5m、大于5m和小于3．5m的三类坎儿井的施工方法，为新疆地区的管道建设工程提供了成功经验。

pipeline constructed in Xinjiang area will cross the speciaI underwater delivery installa-tions under the name of Kan Er Well'. Kan Er Well can be divided into 3 types: i. e. more than5 m, less than 3. 5m and 3. 5m^5m according to the buried depth. The Kan Er Well crossing ofKu Erle to shanshan oil pipeline is successfully carried out by means of lintel protection (i- e- bytaking the concrete pipe which is upper bend and square-shaped as crosseqover water pipe) andchanging mechnical operation into the labour operation, Therefore experiences for constructing ollpipeline in Xinjiang area are accummulated- (Notero: Kan Er Well -An irrigation system ()f wellsconnected by underground Channels used in Xinjiang area. )