Composite Soil Nailing Wall Structure Deformation Monitoring And Analysis

With the development of economic construction,there are more and more deep excavation engineering. Composite soil nailing walls as a form of a pro-active support, in recent years, the application of more and more. But not much information about its role in the mechanism of its study of the deformation and fewer.To Handan a deep foundation pit support engineering background, summarizes existing research based on a practical engineering applications of composite soil nailing wall structure from the deformation of composite soil nailing wall structuremonitoring, calculation methods and design methods were introduced.The main work and conclusions are as follows:(1) The development of the excavation works were introduced, and analyzed soil nails-the Bolting structure calculations principle as well as the construction process. Soil nails-of Bolting structure not only affordable, but also to effectively control the deformation of the supporting structure and the soil.(2) Details of the design and construction of a deep excavation in Handan process and carry out the monitoring of the entire process. The engineering of a slope for a typical soil nailing-Bolting structure, using traditional monitoring methods and means of its monitoring, including:the slope of horizontal displacement, surface subsidence, groundwater monitoring, soil pressure, anchor soil nail stress. And monitoring data were analyzed with a slope of displacement with the excavation conditions carried out significant changes in soil nails-Bolting structure control soil deformation.(3) Comparison of theoretical calculations and actual monitoring test results by simulation and management software for deep excavation. The results show that management is software for soil nailing-the the Bolting structure design is conservative, and design deformation is much greater than the actual deformation.(4) Excavation Engineering Theory and Practice is a complex and comprehensive design, there are significant differences in the results of monitoring and data simulation, but this is not without contact between. Projects and the development of theoretical design results can be very good guidance, and provide a safe and reliable construction program. The same time, the actual monitoring data can also be a good feedback to the design which most theoretical design results supplement.This article is by engineering case study of soil nails-bolt combined supporting structure, can provide reference for similar projects.