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随着国民经济的飞跃发展,在城市工程建设中,往往由于地皮的紧缺,在密集的建筑群中还需要新建或旧房拆除重建,由于大多数楼房的层数均日趋增高,因而对地基承载力的要求越来越高,对变形的要求也越来越严,相反有利于建筑的好场地却越来越少。因此,即使在过去一般可评价为良好的地基,在特定的条件下,也非要进行地基处理不可。桩基是地基处理的最好形式之一,可是对振动影响较敏感的建筑物周围进行桩基施工,由于打桩对软土的挤压作用,经常导致对周围的建筑物破坏和地下管线、道路路面等开裂现象,且在打桩过程中产生的噪音和振动对周围环境形成了威胁和公害,因此在
With the rapid development of the national economy, in urban construction, often due to the shortage of land, new or demolition and reconstruction of old houses are also required in densely populated buildings. Since the floors of most buildings are increasingly increasing, The demand for force is getting higher and higher, the requirements for deformation are also getting more and more strict, on the contrary, there are fewer and fewer good sites that are conducive to construction. Therefore, even in the past can generally be evaluated as a good foundation, under certain conditions, but also to deal with foundation. Pile foundations are one of the best forms of foundations for foundation treatment, but pile construction around buildings that are more susceptible to vibrations often results in damage to surrounding buildings and underground pipelines due to piling on soft soil, Pavement and other cracking phenomenon, and in the piling noise and vibration generated on the surrounding environment posed a threat and pollution, so in