铁道标准设计Issue(1)：28-33,6.DOI:10.13238/j.issn.1004-2954.2014.01.007
增压防堵真空预压加固吹填土对比试验研究
Comparative Experiment Study on the Strengthening of Dredger Fill Using Vacuum Preloading Method Based on Pressurization and Anti-clogging Technology
刘浩 1余学鹏 1崔俊杰 1梁英俊1
作者信息
- 1. 中铁工程设计咨询集团有限公司，北京 100055
- 折叠
摘要
Abstract
In combination with the comparative experiment at a experiment section of Tianjin Xingang North railway container center station, the paper discussed the differences among three kinds of vacuum preloading methods:the vacuum preloading method based on pressurization and anti-clogging technology, the traditional vacuum preloading method, and the direct vacuum preloading method. Also the paper researched the difference of strengthening effects between the direct vacuum preloading method and the vacuum preloading method which is based on pressurization and anti-clogging technology. The experiment study results are as follows:( a) By using special joints to connect the PDPS integrated drain board with the steel wire hose so as to function as a horizontal drainage system, instead of the medium-grained sand cushion adopted in traditional vacuum preloading method, the vacuum preloading method based on pressurization and anti-clogging technology can improve the vacuum strength and efficiency of drain board, can effectively reduce project cost, and can much more accord with environmental protection requirement. ( b) Compared with direct vacuum preloading method, the vacuum preloading method based on pressurization and anti-clogging technology can present a faster settlement velocity in initial period and a larger settlement volume in the same working period. ( c ) After being strengthened by the vacuum preloading method based on pressurization and anti-clogging technology, the strengthening effect on subsoil is much more effective.关键词
地基加固/增压防堵真空预压/直排式真空预压/固结沉降/孔隙水压力/十字板剪切强度Key words
ground strengthening/vacuum preloading method based on pressurization and anti-clogging technology/direct vacuum preloading method/consolidation settlement/pore water pressure/vane-shear strength分类
建筑与水利引用本文复制引用
刘浩,余学鹏,崔俊杰,梁英俊..增压防堵真空预压加固吹填土对比试验研究[J].铁道标准设计,2014,(1):28-33,6.
