宝钢马迹山港卸船码头嵌岩桩单排架钢套管稳定性试验研究  

Model test on stability of single bent rock-socketed steel pipe piles of Majishan unloading port in Baogang

作　　者：陈德春[1] 彭祥[1] 沈丽宁[1] 

机构地区：[1]河海大学港口海岸与近海工程学院,江苏南京210098

出　　处：《水运工程》2012年第4期84-87,共4页Port & Waterway Engineering

摘　　要：宝钢马迹山港卸船码头位于外海深水、地质条件为裸露岩基的工程区域,码头设计桩基为嵌岩灌注桩,并采用袋装砂和袋装碎石形成一定厚度的人工基床,以期达到施工期钢套管的稳定。为了解施工期单排架钢套管嵌岩稳定性,进行波浪和水流共同作用下的物理模型试验,得出以下结论:单排架钢套管稳定性影响因素主要为钢套管嵌岩深度和人工基床厚度,相同水位、波高、嵌岩深度45 cm、基床厚度7.0 m条件下,单排架桩数宜取4根。Majishan unloading port in Baogang locates in the open seas where the engineering region is deepwater with exposed batholiths as the geological conditions. The designed pile foundation is rock-socketed pile with the artificial foundation bed filled with packed sand and macadam, with the expectation of fulfilling the requirement of stability of rock-socketed steel pipe piles during the construction period. To obtain the stability conditions of the single bent rock-socketed steel pipe piles, a physical model test is carried out under the influence of waves and currents. As can be obtained from the test, the main influencing factors are the depth of rock-socketed pile and the length of artificial foundation bed. The number of piles should be 4 on condition that the depth of rock- socketed pile is 45 centimeters high and the length of artificial foundation bed is 7 meters long with the identical water level and wave height..

关 键 词：马迹山港 嵌岩桩 单排架 人工基床 钢套管 稳定性 

分 类 号：U655.544.1[交通运输工程—港口、海岸及近海工程]