基坑开挖监测是根据前段开挖期间监测到的土体变位、支护结构受力及变形状况等各种现象,提取出大量的岩土和结构信息,及时对比勘察、设计所预期的性状与监测结果的差别,从而对原设计进行评价,判断现行施工方案的合理性。通过反分析法计算和修正岩土力学参数,预测下阶段施工过程 Pit excavation monitoring is based on the monitoring during the excavation of the previous section of soil displacement, supporting structures and deformation and other phenomena, extracted a large number of geotechnical and structural information, timely investigation and design of the expected Traits and monitoring results to evaluate the original design to determine the rationality of the current construction program. The back-analysis method is used to calculate and correct the geotechnical parameters and forecast the construction process in the next stage