论文部分内容阅读
结合钢管土钉在某深厚填土基坑中应用的工程实例,介绍了填土深基坑采用钢管土钉支护的特点、设计计算过程及应注意的事项,重点讨论了在深厚填土基坑中设计计算时填土抗剪强度参数c,值、钉–土摩阻力如何合理取值的问题及填土年限的判断方法,同时强调施工中钢管土钉的制作工艺和注浆质量的好坏是决定基坑支护成败的关键,其设计参数处理思路和施工工艺要求可供类似基坑工程设计施工时参考。
Combined with the application examples of steel tube and soil nails in a deep foundation pit, this paper introduces the characteristics of the deep foundation pit filled with steel tube and soil nailing, the design and calculation process and the matters needing attention, In the design and calculation of the pit, the parameters of shear strength c, the value of how to calculate the value of nail-soil friction and the method of judging the filling age are emphasized. At the same time, the emphasis is put on the production technology and grouting quality Bad is the key to determine the success or failure of foundation pit support, and its design parameters and construction process requirements for similar design and construction of foundation pit reference.