Program Design of Soft Foundation Treatment for an Accommodation Highway

2015 ◽  
Vol 744-746 ◽  
pp. 1277-1282
Author(s):  
Bi Hong Song ◽  
Chun Ming Wang ◽  
Jian Hua Chen ◽  
Cong Han ◽  
Wei Wei Zhu

Survey data show the problem of weak foundation existing in an accommodation highway. There are many methods to treat the soft foundation, and different methods have different expenses, effects and construction periods. Through the deep comparison of four foundation treatment programs, dynamic compaction method is taken for the design, and the detection result shows that the treatment effect reaches the engineering requirements.

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.


2013 ◽  
Vol 353-356 ◽  
pp. 482-485
Author(s):  
Yong Shou Yang ◽  
Bin Xin Li

The dynamic compacted replacement pier technique is a new ground-treatment technology, which developed from the dynamic consolidation method. It can be used for the improvement in high-saturated silts and soft plastic to flow plastic clays, which cannot be treated using dynamic compaction method. T his new approach has many advantages, such as its simple equipment, significant reinforcing effects, construction time-saving, low-cost, no requirement of dewatering, and etc. In this paper, combined with engineering examples, according to analysis and evaluation of the monitoring results, it is feasible to adopt dynamic compaction replacement pier in uneven thickness hard plastic silt-clay foundation. Concrete-gravel dynamic compaction replacement pie can enhance the bearing capacity of pier and compound foundation. It provides a practical basis to expand the application scope of dynamic compaction replacement foundation treatment and enrich this technology.


2012 ◽  
Vol 226-228 ◽  
pp. 1111-1114
Author(s):  
Fei Xuan ◽  
Chao Qun Peng ◽  
Yan Jia

In the view of the actual project, this paper analyses the credit problems of the foundation treatment, from the three aspects of the location, the shallow blow fill and the pile’s negative firctio- n. Then this paper especially studies the field testing scheme about the dynamic compaction method with precipitation, based on the analysis of the percussive compaction method with precipitation, the dynamic compaction method with precipitation and packless vibroflotation method. Meanwhile, the operated steps and the attention of the construction have been enucleated.


2019 ◽  
Author(s):  
Leida Cristina Monterrosa ◽  
Chuang Hwee Tay ◽  
Jose Martin Salazar

2020 ◽  
Vol 198 ◽  
pp. 03025
Author(s):  
Kang Le ◽  
Zhang tingjun ◽  
Tong Junhui ◽  
Chen Di ◽  
Qian Baoyuan

Thermal drainage consolidation method is a new technology of soft foundation treatment, which involves the coupling of thermo-hydro-mechanical field, and the action mechanism is complex. In this paper, taking the model test of thermal drainage consolidation as the prototype, the finite element model of thermal drainage consolidation is established by using Abaqus software, then, the numerical results are obtained and are compared with the results of model test, and the reliability of the numerical model is verified. The results show that when the applied load is constant, the higher the temperature is, the faster the consolidation speed of soil is, but with the increase of temperature, the consolidation effect of the same temperature difference will gradually weaken. In addition, the thermal drainage consolidation method can achieve the best treatment effect when the temperature of the soil reaches 60 ℃.


2014 ◽  
Vol 580-583 ◽  
pp. 2244-2248
Author(s):  
Jun Yi Shao ◽  
Xiao Zhang

In this paper, we sorted soft foundation treatment technology by quantifying based on evaluation technique of life cycle environmental load and choose cement mixing pile which life-cycle environmental load is small and spiral pump pressure CFG pile which carrying capacity is high to integrate. It not only improved soil compaction effects, but also solved the problems of other technologies in the foundation process, such as low carrying capacity, reduced diameter, broken pile, virtual pile and so on. Besides, it has reduced the cost of the project and the application prospects are broad.


2012 ◽  
Vol 204-208 ◽  
pp. 1622-1625 ◽  
Author(s):  
Zi Lin Li ◽  
Kai Feng Zhang

Foam lightweight soil is a new type of material appearing in recent years, whose advantages are paid more and more attention to by engineers and it will have broad application prospect in the engineering. An in-depth study application of foam lightweight soil in the complex of railway soft soil foundation treatment what based on a railway foundation project in Tianjin, this paper discusses the actual application state of foam lightweight soil in handling of special railway soft soil foundation. Through in-depth analysis of the advantages of a foam lightweight soil, optimization of construction replacement thickness and moisture density, discussion on construction of it, we can find large advantages of foam lightweight soil as replacement material in the complex railway soft soil foundation treatment, and provide new ideas about processing complex soft foundation.


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