scholarly journals Application of the Dynamic Compaction Method for Ground Improvement of Collapsible Loess in Qinhai

Teknik Dergi ◽  
2022 ◽  
Author(s):  
Jun CAI ◽  
Jingtao ZHANG ◽  
Guangyin DU ◽  
Han XIA
2012 ◽  
Vol 594-597 ◽  
pp. 1149-1152
Author(s):  
Zheng Rong Zhao ◽  
Hong Xia Yang

Through the field test data comprehensive analysis, the construction parameters of dynamic compaction can be obtained.The comparison of the before and after dynamic compaction reinforcement effect shows that the collapsible loess foundation after the dynamic compaction treatment, the soil dry density increases by approximately 10%, void ratio reduces by about 15%,bearing capacity increases by 15% or more and collapsible disappears. According to the construction practice of large-scale dynamic compaction method in the south line of Jinan around the city expressway, discusses the key problems should be noted during the construction process and treatment methods of special sections, quality testing methods and evaluation standards.


2014 ◽  
Vol 1079-1080 ◽  
pp. 406-409 ◽  
Author(s):  
Bin Bin Xu ◽  
Rui Qi Zhang ◽  
Guo Liang Ye

Dynamic compaction is one of the densification techniques of ground improvement and extensive theoretical, experimental and in-situ tests have been used to clarify its mechanism. In this paper, a literature review about the dynamic compaction is carried out and the emphasis is put on the reinforcement mechanism, effective reinforcement depth and influence range of vibration to give a reference for the ongoing researches of dynamic compaction method.


Author(s):  
Mariusz P. Sieradzki ◽  
Bartlett W. Patton ◽  
Douglas J. Sereno ◽  
Paul Wehrlen

2014 ◽  
Vol 529 ◽  
pp. 755-758
Author(s):  
A Ling Zhang ◽  
Dan Ni Qi

Along with large national investment in infrastructure construction, the mileage of the highway, which is one of the infrastructures, has increased year by year. There are many kinds of artificial filling foundation treatment methods for housing construction project in mountain highway facilities. This paper, combined with the engineering example, focuses on the dynamic compaction method and the replacement method.


2011 ◽  
Vol 368-373 ◽  
pp. 3121-3126 ◽  
Author(s):  
Qing Juan Meng ◽  
Wei Hua Ma ◽  
Jing Sheng Qiao

Dynamic compaction method was widely used in various engineering foundation reinforcement, the research of influence to surrounding environment from dynamic compaction and the measures of reducing vibration was not complete. In this paper, the decay laws of dynamic compaction vibration acceleration in horizontal direction was got through the model test, the attenuation formula of horizontal vibration acceleration was fitted, which provides theory basis for determining the influence scope of dynamic compaction; And the depth and filling materials two influence factors of vibration isolation ditch were researched by model tests, which provide important basises for the application of vibration isolation ditch.


2021 ◽  
Author(s):  
Bo Li ◽  
Dong-sheng Xu ◽  
Fu-guang Zhu ◽  
He Huang ◽  
Han-yang Liu ◽  
...  

Author(s):  
Tuncer B. Edil

Recently, an innovative soft soil improvement method was advanced in China by integrating and modifying vacuum consolidation and dynamic compaction ground improvement techniques in an intelligent and controlled manner. This innovative soft soil improvement method is referred to as “High Vacuum Densification Method (HVDM)” to reflect its combined use of vacuum de-watering and dynamic compaction techniques in cycles. Over the past ten years, this innovative soft soil improvement technique has been successfully used in China and Asia for numerous large-scale soft soil improvement projects, from which enormous time and cost savings have been achieved. In this presentation, the working principles of the HVDM will be described. A discussion of the range of fine-grained, cohesive soil properties that would make them ideal for applying HVDM as an efficient ground improvement method will be discussed. The economic benefits and environmental benefits of HVDM are elucidated.


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