| 真空-堆载联合预压加固高等级公路软基的工程实例分析 |
| |
| 引用本文： | 陈兰云,朱建才.真空-堆载联合预压加固高等级公路软基的工程实例分析[J].岩石力学与工程学报,2004,23(Z1):4628-4633. |
| |
| 作者姓名： | 陈兰云 朱建才 |
| |
| 作者单位： | 1. 金华职业技术学院建筑工程学院,金华,321017
2. 浙江大学岩土工程研究所,杭州,310027 |
| |
| 摘 要： | 根据浃里陈大桥桥头试验段的现场监测成果,对真空-堆载联合预压加固软基试验段中加固区的孔隙水压力、地表沉降随时间变化的规律、影响区的地表沉降特征及其对周围建筑物的影响、真空能量与地表沉降的关系以及停泵后的地表回弹量等进行了分析。分析表明,真空-堆载联合预压的联合方式实质上为孔隙水压力差的叠加,真空-堆载联合预压能大幅消除沉降量,减少工后沉降量,达到防止“桥头跳车”的作用。
|
| 关 键 词： | 道路工程 真空-堆载联合预压 孔隙水压力 地表沉降 |
| 文章编号： | 1000-6915(2004)增1-4628-06 |
| 修稿时间： | 2004年4月10日 |
ANALYSIS ON CONSOLIDATION OF HIGHWAY SOFT-SOIL FOUNDATION WITH VACUUM-SURCHARGE PRELOADING |
| |
| Chen Lanyun,Zhu Jiancai.ANALYSIS ON CONSOLIDATION OF HIGHWAY SOFT-SOIL FOUNDATION WITH VACUUM-SURCHARGE PRELOADING[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(Z1):4628-4633. |
| |
| Authors: | Chen Lanyun Zhu Jiancai |
| |
| Affiliation: | Chen Lanyun1,Zhu Jiancai2 |
| |
| Abstract: | Based on the results of the in-situ monitoring from the bridgehead test site of Jialichen bridge,the variation law of the settlement and pore water pressure with time in consolidation zone,and the surface settlement in influenced zone and the its influence on the building around are analyzed.The relationship between vacuum energy and the surface settlement,and the surface resilience after stopping vacuum pump are also analyzed.The results indicates that the combination of vacuum and surcharge preloading is the combination of pore water pressure difference in essence and that vacuum-surcharge preloading can greatly eliminate the surface settlement after the construction,which can function as a prevention against the problem of car leaping at bridge-head. |
| |
| Keywords: | road engineering vacuum-surcharge preloading pore water pressure surface settlement |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
