| The pile construction of cross sea bridge is different from that of inland. The construction work surface is located marine.So the foundation construction faced with extremely complex geological, hydrology, meteorological environment,and have greet influence to the construction. Also the cross sea bridge pile foundation has the characteristic of big diameter and the length long, the construction techniques is complex At present, there is a few research on the bridge foundation construction. This article summarized in the domestic and foreign research, unified the Pingtan cross sea bridge pile foundation construction, calculated and analyzed the stability of drilling holes wall in the process of drilling holes.Got the deformation of soil in hole wall under the different circumstances. And systematic analysis the different measures of the baseboard effect. Given reasonable technical measures to stabilize the hole wall.According to the characteristics of construction in the poor conditions.Carried out the reasonable technology to drilling hole from the mud counterfort measures, steel casing technology and cleaning hole technology.The achievement of scientific research papers have guided the large—scale deep foundation construction of Pingtan cross sea Bridge, and ensure the quality of basis construction. This achievement have important reference value for design and construction in marine engineering. |
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