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以北京某基坑工程为例,根据基坑周边条件、变形要求、施工荷载及后期建设需要,分别选用桩锚、土钉墙加桩锚的支护形式进行设计,在满足安全、稳定的前提下,做到了经济、可行、易实施。在施工过程中,以监测数据为依据,以护坡桩、土方开挖、锚杆等多种方式控制基坑总变形。工程监测数据及现场情况表明,基坑最大变形控制在要求范围以内,为后期类似工程的处理提供了借鉴实例。
Taking a foundation pit project in Beijing for example, according to the surrounding conditions of foundation pit, deformation requirements, construction loads and the needs of later construction, the design of supporting forms of pile anchors, soil nailing walls and pile anchors are respectively selected. In the premise of meeting the requirements of safety and stability, Under, do the economy, feasible, easy to implement. In the process of construction, based on the monitoring data, the total deformation of the foundation pit is controlled by various methods such as slope protection pile, earthwork excavation and anchor rod. The monitoring data of the project and the on-site situation show that the maximum deformation control of the foundation pit is within the required range, which provides a reference example for the treatment of similar projects in the later period.