Research on Bearing Characteristics of Bored Piles in a Substation
In order to study the bearing characteristics and engineering applicability of bored piles,this paper carries out the vertical compressive static load test and pile stress monitoring of bored piles based on a substation project,and analyzes the settlement law and internal force distribution characteristics of the pile under vertical load.The results show that,with the increase of vertical load,the settlement of the test pile gradually increases,the slope of the curve gradually increases,and the Q-S curve does not show an obvious steep drop section.The maximum settlement of the test pile is 15.62 mm,and the vertical compressive bearing capacity is greater than 4 800 kN.The three test piles in this test do not achieve the ultimate rupture state,and the resistance at the end of the pile does not reach the limit,while the friction resistance on the pile side is fully exerted.
bored piletransformer substationbearing performancevertical static load test of single pile
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