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近几年来,桩基工程迅猛发展,试桩的数量也随之大增。据不完全统计,目前我国建筑业年用桩量达60万根以上。如按 TJ7-74规范中的有关规定进行试桩,则每年试桩量估计可达6千根。但实际的试桩数量远远达不到规定的要求,原因是静力试桩往往给建设或施工单位造成负担,它不仅需要花费一定的人力和物力,而且往往干扰施工。因此不少建设和施工单位宁可多用一些桩,而
In recent years, rapid progress has been made in the construction of pile foundations, and the number of piles has also greatly increased. According to incomplete statistics, China’s construction industry currently has more than 600,000 piles per year. If test piles are carried out in accordance with the relevant regulations in TJ7-74, the estimated pile volume per year can reach 6,000. However, the actual number of test piles falls far short of the required requirements. The reason is that static test piles often cause a burden on the construction or construction units. It not only takes a certain amount of manpower and material resources, but also often interferes with construction. Therefore, many construction and construction units prefer to use more piles.