Application Of Controlling Settlement Composite Pile Foundation Technology In Bridge

The high way bridge is an indispensable link of road, and its quality decides trafficquality of the whole traffic transportation. But the bridge differential settlement makeroads uneven, especially transition section between road and bridge. Due to the materialof bridge and roadbed is different, the settlement rate also has bigger difference, so thesettlement of transition section is not only inconsistent also very complex. The road isnot flat lead to passing vehicle travels not smooth, and the serious is that vehicle jump atbridge head. So now, designing the bridge pile foundation of smaller differentialsettlement is the focus of people’s attention under the premise of safety of the economy.In order to design the economic and reasonable bridge pile foundation, and at the same time, thepile foundation settlement control has great economic benefit and the fittest successes,put the technology in to the bridge. Therefore do the following research: analysis of singlepile under static and dynamic loads, it is concluded that the basic work character of stress state ofsingle pile under static and dynamic loads is consistent; According to the single pile dynamicstiffness and damping ratio, and pile groups dynamic stiffness efficiency coefficient and thestiffness of the definition,sums up the relationship of pile number and independent pile bearingcapacity and load efficiency of pile groups; Analyze optimized design scheme of pile groups,and tried to find out the best proportion of pile numberthe-pile length-pile diameter of pilegroups. Simulate engineering example-Bin Hu Road Bridge pile foundation by the finiteelement software of ADINA. Arrange the pile according to the settlement of pile foundation, inorder to achieve both economical and reasonable foundation.