Experimental Study on Anti-slide Pile Strengthened By Anchor Cable for Foundation Engineering Frame
Based on the construction practice of Zhidan Compressor Station,the influences of prestressing of anchor cable,width and column distance of anti-slide pile on the loading and deformation characteristics of pile are studied in this paper.The results show that with the increase of pile width,the maximum soil pressure of pile width 40 mm is 17.3%and 22.1%higher than that of pile width 32 mm and pile width 27 mm respectively.When the anchor cable tension is between 1 200 kN and 1 600 kN,the pile displacement is small and the stress distribution is more balanced.When the tensile force is 1 400 kN,the difference between the anchorage point of the pile body and the maximum shear stress at the bottom of the free section is about 27%of the maximum shear stress at this time,and the maximum displacement of the pile body is only 5.5mm,which is far less than the general elastic deformation range of the prestressed frame anchor cable.
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