基坑勘探孔诱发的管涌处理

Treatment of Piping Caused by Exploration Hole of Foundation Pit

上海某地下停车库工程在进行1个区段基坑收底作业时,发现土面有管涌情况发生,水量中等并含少量砂,经判断为一静力触探孔,后通过套打铁管稳住涌水点及水位,待大底板完成后再行封孔,并最终顺利处理完成,有关经验可供相关专业人员参考。

The piping case is found at the soil surface when the construction of a foundation pit in an area is completed in an underground parking lot project.The water flow is medium with a little sand.It is a static exploration hole after judgment.The piping point and the water lever are stabilized by setting the pipes,and then the hole is not sealed until the large bedplate is completed.Finally,it is successfully treated.The relative experience can be referred for the similar projects.