开山石厚填土滨海场地桩基设计
发布时间：2018-11-24 13:59
【摘要】：青岛万达东方影都酒店群位于青岛西海岸人工填海区,场地为近期采用厚度约11~16m的开山石改造回填后场地,局部有约16m厚淤泥包露出地面,下伏基岩为连续、稳定的沉积岩。针对新填场地固结沉降大,会对桩基产生较大的负摩阻力的特点,按建筑功能分区域采用不同夯击能进行地基处理;针对开山石及厚淤泥包场区成孔困难、易塌孔等特点,采用冲孔灌注桩,并采取可靠施工措施,采用后注浆技术提高承载力;在桩内钢筋上埋设钢筋应变计用于检验桩的承载力,保证桩基安全;对桩基的抗腐蚀做了专题研究;针对后期使用过程中场地沉降导致管线及道路的破坏,采取了有效处理措施。
[Abstract]:The Wanda Dongfang Yingdu Hotel Group of Qingdao is located in the artificial reclamation area of the west coast of Qingdao. The site is a backfill site after the recent retrofitting with a thickness of 11 ~ 16m thick kesite. There are about 16m thick silt bags exposed to the ground and a continuous and stable sedimentary rock in the lower voluminous rock. In view of the characteristics that the consolidation settlement of the new filling site is large and the pile foundation will produce greater negative frictional resistance, different ramming energy is adopted to treat the foundation according to the building function. In view of the characteristics of difficult hole formation and easy collapse in the open rock and thick silt filling area, the punched cast-in-place pile was adopted, and reliable construction measures were adopted to improve the bearing capacity by post-grouting technology. In order to ensure the safety of pile foundation, the strain gauge of steel bar embedded on the pile is used to test the bearing capacity of pile, and the corrosion resistance of pile foundation is studied. Aiming at the damage of pipeline and road caused by site settlement in the later period of use, effective treatment measures are taken.
【作者单位】： 山东同圆设计集团有限公司;
【分类号】：TU473.1
，
本文编号：2353992
[Abstract]:The Wanda Dongfang Yingdu Hotel Group of Qingdao is located in the artificial reclamation area of the west coast of Qingdao. The site is a backfill site after the recent retrofitting with a thickness of 11 ~ 16m thick kesite. There are about 16m thick silt bags exposed to the ground and a continuous and stable sedimentary rock in the lower voluminous rock. In view of the characteristics that the consolidation settlement of the new filling site is large and the pile foundation will produce greater negative frictional resistance, different ramming energy is adopted to treat the foundation according to the building function. In view of the characteristics of difficult hole formation and easy collapse in the open rock and thick silt filling area, the punched cast-in-place pile was adopted, and reliable construction measures were adopted to improve the bearing capacity by post-grouting technology. In order to ensure the safety of pile foundation, the strain gauge of steel bar embedded on the pile is used to test the bearing capacity of pile, and the corrosion resistance of pile foundation is studied. Aiming at the damage of pipeline and road caused by site settlement in the later period of use, effective treatment measures are taken.
【作者单位】： 山东同圆设计集团有限公司;
【分类号】：TU473.1
，
本文编号：2353992
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