论文部分内容阅读
基坑变形分析及其控制技术是工程界的热点和难点问题之一。简要介绍开挖卸载后的基坑变形。总结现有的直撑支护系统。基坑变形的不可恢复、不可调节性及适应变形的不确定性等不足。最后,结合基坑变形特点及拱形结构在较小竖向荷载作用下产生较大横向张力的特点,对拱撑应用于基坑环境下的有益效果进行了较为全面的分析,指出拱撑支护系统可以实现基坑的变形动态控制与调节,最大程度地确保基坑的安全与稳定。
Deformation analysis of foundation pit and its control technology are one of the hot and difficult problems in engineering. Briefly introduce the deformation of foundation pit after excavation unloading. Summarize the existing straight support system. Undetectable pit deformation, irreconcilable and adapt to the deformation of the lack of uncertainty. Finally, based on the characteristics of deformation of foundation pit and the large horizontal tension of arch structure under the action of small vertical loads, the beneficial effects of the application of arch in foundation pit environment are analyzed in detail. It is pointed out that the arch support The protection system can realize the dynamic control and adjustment of the deformation of the foundation pit to ensure the safety and stability of the foundation pit to the maximum extent.