Several important matters in pipe jacking construction are introduced , which are the design of jacking force , relay station and disposal of joints ; moreover its effect factors and treating measurement are discussed 介绍了顶管施工中的几个重要问题:顶力设计、中继站和管接头的处理,并讨论了其影响因素及处理措施。
The in - situ testing includes surface deformations , sub - surface movements , earth pressures , pore water pressures , underground water levels , spt , stresses of pipes and pipe - soil contact stresses . in addition , the total jacking forces , deviations in line and level of the pipe line and earth pressures in the earth pressure balance machines ( epbm ) are also recorded . the results of field - testing are analyzed , and the variety of testing datum include earth pressures , pore water pressures and underground water levels during the course of the shield through it are studied 现场测试内容包括地面变形、深层土体变形、土压力变化、孔隙水压力变化、地下水位变化、土体标准贯入试验、管道内力变化、管土接触应力变化以及顶管施工现场记录(包括顶力、土压力、平面偏差、高程偏差等) 。
jacking force meaning:[Architecture] The force exerted temporarily by the device which introduces tension in tendons in prestressed concrete . jacking force перевод:усилие предварительного обжатия (бетона)