论文部分内容阅读
为提高钢筋混凝土打入桩的抗锤击性能,打入土中不破损,降低制作和打桩的劳动强度并降低成本,苏联列宁格勒的一些单位在1982～1984年对此进行了深入研究。在很多情况下,钢筋混凝土打入桩遇到中等及坚硬土层时,桩头首先破坏,由于这些打入桩未能打到设计标高,降低了基础的安全可靠性,因此必须设法提高打入桩的抗冲击性能。试验表明,使用钢纤维混凝土桩头,其抗冲击性能可大大提高。钢纤维混凝土打入
In order to improve the resistance to hammering of reinforced concrete piles, it is not broken into the soil, and the labor intensity of making and driving piles is reduced and the cost is reduced. Some units of the Soviet Union Leningrad conducted an in-depth study from 1982 to 1984. In many cases, when the reinforced concrete driven piles encounter medium and hard soil layers, the pile heads are first destroyed. Because these driven piles cannot reach the design elevation and reduce the safety and reliability of the foundation, it is necessary to improve the penetration rate. Pile impact resistance. Tests show that the use of steel fiber reinforced concrete pile head, its impact resistance can be greatly improved. Steel Fiber Concrete Into