Abstract：
Under the condition of tight construction period, large deformation of foundation pit and abundant groundwater, the conventional shotcrete and bolting support has been unable to meet the requirements of construction period and safety and stability of foundation pit. As a better bearing system, the inner steel support has good effect on water stop, the deformation of the foundation pit supporting system is small and stable, and the recovery rate of Larsen steel sheet pile is 100%. Under the condition of ensuring the safety and stability of the foundation pit, the construction period can be greatly shortened under the premise of safety and stability, and it is gradually used in such typical soft-soil areas such as Kunming.
LUO Hao,JIANG Mu,LI He et al. Construction technology of inner bracing of pit type steel in super high-rise pit[J]. Architecture Technology, 2018, 49(10): 1045-.
