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在公路桥梁中,钻孔桩用得较为普遍。多年来,广大科技工作者力图简化、推广钻孔桩的设计计算,进行了大量的钻孔桩荷载试验,总结出不少较为合理的计算方法,特别是m法已广泛应用,并列入了《公路桥梁设计规范》(1974,下文简称《桥规》)。《公路桥梁钻孔桩计算手册》一书对该法亦提出一套完整的计算公式及相应的图表。但尽管如此,在桩基设计中尚有许多工作要做,特别是群桩的内力及配筋计算,光靠图
In highway bridges, bored piles are more commonly used. Over the years, the majority of scientists and technologists have tried to simplify and popularize the design and calculation of bored piles, carried out a large number of load tests of bored piles, and summed up quite a few reasonable calculation methods. In particular, the m-law has been widely used and included “Highway Bridge Design Code” (1974, hereinafter referred to as “bridge gauge”). The “Road Bridge Bored Pile Calculation Manual” a book also proposed a set of complete formula and the corresponding chart. In spite of this, much work needs to be done in the design of pile foundation, especially the calculation of internal forces and reinforcement of pile groups,