|
|
|
| Design for Foundation Strengthening for Tianjin Harbor Logistic Center Container Yard |
| CUI Jun-jie , HAN Zhi-tea, SONG Xu-guo |
| The Third Railway Survey and Design Institute Group Corporation, Tianjin 300142, China |
|
|
|
Abstract Research purposes: The first phase of construction of Tianjin harbor logistic center container yard is covered by 1. 4-3. 8 m caustic dross beneath which is 20 m silt and silty clay pan. We must strengthen the foundation according to the load of yard function sections, and satisfy the requirement of settlement controlling standards of design loads.
Research methods: According to the utility function, the yard is partitioned reasonably，also design loads，surface type and settlement controlling standards are determined. Based on geological and hydrological condition, in addition to scheme of yard foundation strengthening is studied, proper engineering measure and test demands are determined.
Research results: The testing results are fine after strengthening the yard by vacuum prepressing, cement deep mixing pile.
Research conclusions: Vacuum prepressing can improve the mechanics condition of the foundation, eliminate harmful deformation. The method is suitable for saturated soft clay foundation, especially when the natural moisture is high or erosive ground water or thick soft clay. After treatment, caustic dross can beused as fine foundation making good use of offal which has good economic benefits and social benefits.
|
|
Received: 20 August 2007
|
|
|
|
|
|
[1]《地基处理手册》编委会.地基处理手册[M].北京:中 国建筑工业出版社，1993.
[2]JGJ 79—2002 ( J220-2002 ) ,建筑地基处理技术规范 [S].
[3]DB 29—20-2000,岩土工程技术规范[S].
[4]崔俊杰津滨轻轨XQa标段软基加固设计[J].铁道标 准设计，2005(10):25-27.
|
|
|
|
2007, Vol. 24 
