Selection of Optimal Supporting Parameters of Composite Soil Nailing Wall for Deep Foundation Pit Considering Geological Influence
By surveying the main building of a comprehensive office building in a certain area to obtain detailed soil layer indicators,using soil nail resistance parameters to calculate and select the optimal soil nail wall material,and designing a deep foundation pit composite soil nail wall support scheme and construction process.Input the designed construction plan into FLAC3D software to simulate the deep foundation pit support structure and the lateral pressure coefficient under different geological influences.Experimental verification:When the soil nail parameters are 5 rows and the steel pipe embedding depth parameter is 2 meters,the support structure can minimize the horizontal displacement and settlement of the deep foundation pit to the greatest extent;When the lateral pressure coefficient is large,it can maintain a lower vertical displacement and deep foundation pit bottom uplift value,which has a good support effect.
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