Application Of combined support technique of Mixing pile and bolt-shotcrete in deep foundation pit
Xu Yongzheng1，Wang Yuanhan1，Zhou Fang2
(1School of Civil Engineering，Huazhong University of Science and Technology， Wuhan 430074 China) (2 Construction Committee of Huangzhou City， Huangzhou 438000 China)
Abstract：The combined support technique of mixing pile and bolt-shotcrete in deep foundation pits is introduced. It can be used in demanding and complicated conditions. In the supporting structure system，the bolt-shotcrete is the primary load-bearing member，and the mixing pile is the secondary load-bearing member. It can be used to increase the shear strength of soils，control the deformation of soil and improve the integral stability. The calculation method for integral stability of foundation pits supported with this technique is proposed，in which mixing pile is treated as a layer of reinforced anti-sliding soil. Therefore，the integral stability can be calculated according to the computation model of the composite bolt-shotcrete support.
徐永政1 王元汉1 周 芳2. 搅拌桩-喷锚支护技术在深基坑支护中的应用[J]. 岩石力学与工程学报, 2004, 23(S1): 4649-4652.
Xu Yongzheng1，Wang Yuanhan1，Zhou Fang2. Application Of combined support technique of Mixing pile and bolt-shotcrete in deep foundation pit. , 2004, 23(S1): 4649-4652.
2004, Vol. 23 
