New Construction Technique of Soft Soil Foundation Consolidated by Plastic Drainage Slab

2012 ◽  
Vol 446-449 ◽  
pp. 2673-2680 ◽  
Author(s):  
Song Lei Tao ◽  
Zhi Fang Zhao ◽  
Zi He Zhang ◽  
Yuan Hong Yu ◽  
Xing Ge Lian
Keyword(s):  
High Efficiency ◽  
Soft Soil ◽  
Strong Wind ◽  
Construction Technique ◽  
Construction Period ◽  
Traditional Design ◽  
New Construction ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Deep Soft Soil

Aimed to solve problems, such as deep soft soil foundation, strong wind and high wave and urgent construction period confronted in offshore dam construction, deepwater work ship has been researched and developed and further the construction and monitoring system has been innovated to break with traditional design and construction method, plastic drainage slab consolidation technology is to lead middle and low beach into offshore deepwater so as to quickly increase bearing capacity and settlement of the soft soil foundation and complete in construction period. This is characterized by security, reliability, economy and high efficiency.

New Construction Technique of Soft Soil Foundation Consolidated by Plastic Drainage Slab

2012 ◽  
Vol 446-449 ◽  
pp. 2673-2680
Author(s):  
Song Lei Tao ◽  
Zhi Fang Zhao ◽  
Zi He Zhang ◽  
Yuan Hong Yu ◽  
Xing Ge Lian
Keyword(s):  
Soft Soil ◽  
Construction Technique ◽  
New Construction ◽  
Soil Foundation ◽  
Soft Soil Foundation

Experimental Study of the Rotary Filling Piles with Large-Diameter under the Axial Load

2012 ◽  
Vol 594-597 ◽  
pp. 527-531
Author(s):  
Wan Qing Zhou ◽  
Shun Pei Ouyang
Keyword(s):  
Experimental Study ◽  
Axial Load ◽  
Load Transfer ◽  
Soft Soil ◽  
Large Diameter ◽  
Shaft Resistance ◽  
Tip Resistance ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Deep Soft Soil

Based on the experimental study of rotary filling piles with large diameter subjected to axial load in deep soft soil, the bearing capacity behavior and load transfer mechanism were discussed. Results show that in deep soft soil foundation, the super–long piles behave as end-bearing frictional piles. The exertion of the shaft resistance is not synchronized. The upper layer of soil is exerted prior to the lower part of soil. Meanwhile, the exertion of shaft resistance is prior to the tip resistance. For the different soil and the different depth of the same layer of soil, shaft resistance is different.

Numerical Simulation of Construction of Super-Large Deep Soft Soil Foundation Pits and Analysis of its Spatial and Temporal Effects

2015 ◽  
Vol 724 ◽  
pp. 79-83
Author(s):  
Xiao Qin Wang ◽  
Ting Ting Sun
Keyword(s):  
Constitutive Relations ◽  
Soft Soil ◽  
Earth Pressure ◽  
Deep Foundation ◽  
Support Structure ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Deep Soft Soil

The constitutive relations of soil in the super-large deep foundation pit project and the law of interaction between soil and the support structure were studied. The excavation of the foundation pit was simulated. The coupling of soil and the support structure and the change in earth pressure with the progress of excavation were analyzed, and the scope of influence of foundationsubsidence was obtained.

scholarly journals The reinforcement effects of deep soft soil foundation with high degree of saturation under dynamic compaction

2018 ◽  
Vol 10 (6) ◽  
pp. 168781401878263 ◽  
Author(s):  
Jihong Wei ◽  
Yan Men ◽  
Feng Zhu ◽  
Huilin Le ◽  
Haotian Fan
Keyword(s):  
Soft Soil ◽  
Dynamic Compaction ◽  
Degree Of Saturation ◽  
Reinforcement Effect ◽  
Construction Time ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
High Degree ◽  
Deep Soft Soil ◽  
Compaction Method

The dynamic compaction method is effective to reinforce soft soil foundation with a low degree of saturation. However, deep soft soil foundation with high degree of saturation has some different characteristics. It has been widely considered that dynamic compaction method is unsuitable to improve the characters of deep soft soil foundation with high degree of saturation. In this article, we will show that the dynamic compaction method with vacuum well-point dewatering is effective to deep soft soil foundation with high degree of saturation reinforcement. In situ and laboratorial experiments are used to assess the reinforcement effect of the deep soft soil foundation with high degree of saturation. Our results show that the dynamic compaction method causes long dissipation time of pore water pressure, and the dynamic compaction method with vacuum well-point dewatering makes construction time of a project 25% shorter. The effective depth of deep soft soil foundation with high degree of saturation reinforcement using the two experimental methods can reach to 8.0 m. In comparison with the total settlement and layered settlement of the dynamic compaction method with vacuum well-point dewatering, the dynamic compaction method settlement is relatively smaller. For soils with depth of 4 m, the reinforcement effect of dynamic compaction method with vacuum well-point dewatering is obviously superior to dynamic compaction method. Based on these results, we suggest construction procedures for different reinforcement depth of soils and construction time.

Reinforcement Method Choice of Deep Soft Soil Foundation

2014 ◽  
Vol 580-583 ◽  
pp. 2328-2331
Author(s):  
Chun Mei Zhang ◽  
Li Juan Liang ◽  
Chao Huang
Keyword(s):  
Bearing Capacity ◽  
Large Deformation ◽  
Soft Soil ◽  
Method Choice ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Deep Soft Soil

Soft soil’s properties including low bearing capacity and large deformation leads to the necessity of reinforcement of foundation when it is made of soft soil. This article illustrates the features and applications of different methods, through the comparison of them.

Application Research on Composite Foundation of Rammed Soil-Cement Piles Applied in the Da-Guang Expressway from Gu'an to Shenzhou

2013 ◽  
Vol 740 ◽  
pp. 655-658
Author(s):  
Huan Sheng Mu ◽  
Ling Gao
Keyword(s):  
Soft Soil ◽  
Composite Foundation ◽  
Application Research ◽  
Action Mechanism ◽  
Foundation Design ◽  
Soil Cement ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Cement Soil ◽  
Capacity Characteristic

Through the practice of tamped cement soil pile in treatment of soft soil foundation in Guan to Shenzhou section of Daqing-Guangzhou Expressway, the author expounds the action mechanism of rammed soil cement pile, composite foundation design points and calculation method of bearing capacity characteristic value.

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