Application Research of the Dynamic Compaction Method with Precipitation in Foundation Treatment Dredger Fill

2012 ◽  
Vol 226-228 ◽  
pp. 1111-1114
Author(s):  
Fei Xuan ◽  
Chao Qun Peng ◽  
Yan Jia
Keyword(s):  
Field Testing ◽  
Dynamic Compaction ◽  
Application Research ◽  
Testing Scheme ◽  
Foundation Treatment ◽  
Dredger Fill ◽  
Compaction Method

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.

Application Study on Dynamic Compaction Technology in Mine Tailings Foundation Reinforcement

2012 ◽  
Vol 170-173 ◽  
pp. 3054-3058
Author(s):  
Jiao Long He ◽  
Zhong Ai Jiang
Keyword(s):  
Mine Tailings ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Field Testing ◽  
Standard Penetration Test ◽  
Dynamic Compaction ◽  
Application Research ◽  
Loading Test ◽  
Application Study ◽  
Compaction Method

The dynamic compaction parameters and measures for tailings foundation are proposed based on actual engineering field testing result.Results of field loading test,standard penetration test and pore water pressure test show that when tailings foundation is reinforced by dynamic compaction method,the bearing capacity value is greater than 130kpa.These provide a reference to application research of dynamic compaction in the tailings foundation.

Application on the Artificial Filling Foundation Treatment for Housing Construction Project in Mountain Highway

2014 ◽  
Vol 529 ◽  
pp. 755-758
Author(s):  
A Ling Zhang ◽  
Dan Ni Qi
Keyword(s):  
Construction Project ◽  
Dynamic Compaction ◽  
Housing Construction ◽  
Treatment Methods ◽  
Replacement Method ◽  
Foundation Treatment ◽  
Highway Facilities ◽  
National Investment ◽  
Compaction Method

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.

Application Research on Dynamic Compaction Replacement Pier Foundation Treatment Methods

2013 ◽  
Vol 353-356 ◽  
pp. 482-485
Author(s):  
Yong Shou Yang ◽  
Bin Xin Li
Keyword(s):  
Low Cost ◽  
Dynamic Compaction ◽  
Treatment Technology ◽  
Construction Time ◽  
Time Saving ◽  
New Approach ◽  
Analysis And Evaluation ◽  
Foundation Treatment ◽  
Plastic Clays ◽  
Compaction Method

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.

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
Keyword(s):  
Survey Data ◽  
Treatment Effect ◽  
Program Design ◽  
Dynamic Compaction ◽  
Treatment Programs ◽  
Foundation Treatment ◽  
Soft Foundation ◽  
Compaction Method ◽  
Construction Periods

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.

Application Research of Compaction Pile in Heavy Collapsible Loess

2011 ◽  
Vol 90-93 ◽  
pp. 1390-1393 ◽  
Author(s):  
Yong Qiang He ◽  
Yan Peng Zhu ◽  
Yun Wu ◽  
Xiao Qing Wang
Keyword(s):  
Soil Compaction ◽  
Composite Foundation ◽  
Application Research ◽  
Loess Area ◽  
Foundation Treatment ◽  
Collapsible Loess ◽  
Expansion Theory ◽  
Soil Compressibility ◽  
Cavity Expansion Theory ◽  
Physical Mechanics

Compaction piles is one of the conventional methods for foundation treatment in collapsible loess, there are very few research results about soil compaction effect between piles when forming the piles. Firstly, the stress field and displacement field of soil around compaction piles are elastic-plastic analyzed on the basis of the cavity expansion theory; then a series of field and laboratory tests were performed to evaluate the treatment effect of the compaction pile composite foundation. The result shows that the collapsibility has been eliminated, all physical mechanics indexes have been improved, and soil compressibility and modulus of compressibility are also increased remarkably. It embodies the correctness of the computation theory. And the feasibility of the compaction piles composite foundation on collapsible loess area is further proved.

Model Test Study on Vibration Transferring of Dynamic Compaction and the Measures of Reducing Vibration

2011 ◽  
Vol 368-373 ◽  
pp. 3121-3126 ◽  
Author(s):  
Qing Juan Meng ◽  
Wei Hua Ma ◽  
Jing Sheng Qiao
Keyword(s):  
Model Test ◽  
Vibration Isolation ◽  
Influence Factors ◽  
Dynamic Compaction ◽  
Vibration Acceleration ◽  
Horizontal Vibration ◽  
Filling Materials ◽  
Surrounding Environment ◽  
Test Study ◽  
Compaction Method

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.

The Application of Dynamic Compaction Techniques Combining Plastic Drainage Plate to Improve Soft Soil Foundations in a College

2011 ◽  
Vol 117-119 ◽  
pp. 526-530
Author(s):  
Hai Yang Chen ◽  
Xiu Jun Liu ◽  
Jian Li ◽  
Xing Hua Hou
Keyword(s):  
Soft Soil ◽  
Dynamic Compaction ◽  
Geological Exploration ◽  
Reinforced Plastic ◽  
The Cost ◽  
Compaction Method

After the research of detailed geological exploration report, as well as the selection and optimization of foundation processing programs, dynamic compaction method with reinforced plastic drainage board is chosen to achieve good results, shorten the duration and reduce the cost.

Experimental Research on Deep Collapsible Loess Foundation Treatment by Dynamic Compaction under Super High Fill

2012 ◽  
Vol 256-259 ◽  
pp. 129-138 ◽  
Author(s):  
Yuan Mei ◽  
Chang Ming Hu ◽  
Xue Yan Wang
Keyword(s):  
Energy Levels ◽  
Deformation Modulus ◽  
Dynamic Compaction ◽  
Foundation Soil ◽  
Foundation Treatment ◽  
Collapsible Loess ◽  
Before And After ◽  
The Stability ◽  
Effective Reinforcement ◽  
Reliable Basis

Taking one foundation project as an example, a series of tests are carried out to study the dynamic compaction parameters and its effects on the deep collapsible loess foundation under super high fill in Lvliang region. Analyses are made on the average settlement of each test area before and after dynamic compaction and on the regularity of the main physical and mechanical indexes of soil. At the energy levels of 2000 kN•m, 3000kN•m and 6000kN•m, the main parameters are gained, such as the effective reinforcement depth, the centre distance of tamping points , the standard of stopping ramming, and the optimal ramming number; hence, the empirical formula of the effective reinforcement depth of dynamic compaction. The results of the tests show that the deep collapsible loess foundation in Lvliang region can be effectively reinforced by dynamic compaction, that the stability of foundation is good, and that the loess collapse in the reinforced range is eliminated basically. Moreover, after dynamic compaction above the energy levels of 2000 kN•m, the eigenvalue of the bearing capacity of collapsible loess foundation in Lvliang can reach over 300kPa; the deformation modulus of foundation soil is more than 25MPa. Therefore, the results of the tests can provide a reference for the design and construction of projects of the same kind; it can also provide a reliable basis for relevant norms and standards.

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