The pit excavation, tension of the prestressed anchor cable, and the process of plain fill and the work condition of the completion support system are monitored during the entire process, so that we can attain a great deal of on-site tests data. 对基坑的开挖及预应力锚索张拉、桩背填土以及竣工后的支护体系的工作情况进行了全程监测,从而获取了大量的现场测试资料。