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水工建筑物中的水闸、水电站和泵站的软土地基常采用群桩基础,以满足地基承载力和沉降的要求。与旋喷桩、粉喷桩以及复合地基等其它方法相比,群桩基础安全可靠且有40多年的设计施工和运行经验,但造价较高。为了降低工程造价,多年来有不少工程技术人员对群桩基础进行了大量的试验和研究,以寻求群桩底板下地基土分担荷载的分析方法。目前,建筑专业已基本摸清了底板下土阻力与有关因素的变
The sluice of hydraulic structures, pile foundation of soft soil foundation of hydropower station and pumping station are often used to meet the requirements of foundation bearing capacity and settlement. Compared with other methods, such as rotary jet grouting, powder jetting pile and composite foundation, the group pile foundation is safe and reliable and has more than 40 years of design, construction and operation experience, but at a higher cost. In order to reduce the construction cost, many engineers and technicians have done a great deal of experiments and studies on the pile group foundation in the past years, in order to seek the analysis method of the shared load of the foundation soil under the pile group floor. At present, the construction profession has basically found out the soil resistance under the floor and related factors