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近十多年来,不论在山区或城市建设中,采用桩基础逐年增多。在桩基工程中,如何用准确、快速、轻便的方法,确定桩的承载力和检验现浇桩的质量,是当前合理使用桩基础中存在的问题之一,用静载试验确定桩的承载力,从已有的方法来说,比较准确,但设备重、时间长、费用高,在很多情况下,由于时间和试验条件的限制,不能进行试验,往往不得不凭经验确定承载力,不能充分发挥桩基的作用。就是作静载荷试验的工程,做的数量也有限,
In the past decade or more, pile foundations have increased year after year in mountainous areas or in urban construction. In pile foundation engineering, how to determine the bearing capacity of piles and check the quality of cast-in-place piles by using an accurate, rapid and portable method is one of the problems existing in the rational use of pile foundations. The static load test is used to determine the bearing capacity of piles. Force, from the existing methods, is more accurate, but it is heavy equipment, long time, high cost, in many cases, due to time and test conditions, can not be tested, often have to determine the bearing capacity by experience, can not Give full play to the role of the pile foundation. It is the project that performs the static load test, and the quantity to be done is also limited.