Factors Affecting the Bearing Capacity of Bored Piles in Water Conservancy Dams and Construction Technology Design
In order to ensure the bearing capacity and stability of the pile foundation of water conservancy dams,a new type of bored pile technology combining closed grouting technology and open grouting at the pile end was studied and designed.The results show that the ultimate bearing capacity of non grouting,open post grouting,and new post grouting methods is 12 000、12 800 and 22 000 kN.The pile end resistance of the new post grouting method increases the fastest,and its extreme resistance increases from 1 800kN to 15 000kN under the same load change.The research has reduced the discreteness of pile foundation bearing capacity,improved the pile foundation bearing capacity,and ensured the safety of the project.This helps to strengthen the management and monitoring of construction sites,providing favorable theoretical support for water conservancy dam projects.
bored pilecarrying capacitygrouting after grouting the pilepile foundationgrouting pressure
万方数据
维普
