论文部分内容阅读
最近十五年内,在运输工程(主要是桥梁和港口工程)中,钢筋混凝土桩基础,管柱基础和承载力大的钻挖桩基础获得广泛应用。苏联是在1950年开始对钻挖桩的研究工作的,1953年建造了按桩的实际尺寸的试验桩,1956年,这种类型的基础在的河桥的工程中初次正式采用。目前,将钻挖桩广泛应用于基础结构实践的同时,对其结构的研究和建造方法的改进工作仍在继续进行。在不能用吸泥法或抓斗取土法穿过密实的
In the recent fifteen years, the foundation of reinforced concrete piles, the foundation of pipe columns and the foundation of the bored pile with large bearing capacity have been widely used in transportation projects (mainly in bridges and port works). The Soviet Union started its research work on drilling and excavating piles in 1950, and in 1953, it built test piles of actual size according to piles. In 1956, this type of foundation was formally adopted for the bridge-river project. At present, the drilling pile is widely used in the practice of the basic structure, at the same time, the improvement of its structure research and construction methods are still going on. Do not use suction method or grab earthwork to pass through the dense