scholarly journals Soil improvement effects of coal ash reclaimed ground by dynamic compaction method

2008 ◽  
Vol 3 (2) ◽  
pp. 153-164
Author(s):  
Shinobu NAKASHIMA ◽  
Shinji YAMASHITA ◽  
Arata KUBO ◽  
Sadao FUJIHATA ◽  
Kohichi IKEDA
Keyword(s):  
Coal Ash ◽  
Soil Improvement ◽  
Dynamic Compaction ◽  
Compaction Method

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.

Soil improvement experiences in Belgium: part I. Overview and dynamic compaction

1997 ◽  
Vol 1 (3) ◽  
pp. 147-155 ◽  
Author(s):  
W. F. Van Impe ◽  
F. De Cock ◽  
J. P. Van Der Cruyssen ◽  
J. Maertens
Keyword(s):  
Soil Improvement ◽  
Dynamic Compaction

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.

INNOVATIVE SOFT SOIL IMPROVEMENT BY VACUUM DE-WATERING AND DYNAMIC COMPACTION

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Tuncer B. Edil
Keyword(s):  
Large Scale ◽  
Ground Improvement ◽  
Soft Soil ◽  
High Vacuum ◽  
Cohesive Soil ◽  
Soil Improvement ◽  
Economic Benefits ◽  
Dynamic Compaction ◽  
Environmental Benefits ◽  
Improvement Method

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.

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 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.

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.

scholarly journals Evaluation on Improvement Zone of Foundation after Dynamic Compaction

2021 ◽  
Vol 11 (5) ◽  
pp. 2156
Author(s):  
Chong Zhou ◽  
Chenjun Yang ◽  
Hui Qi ◽  
Kai Yao ◽  
Zhanyong Yao ◽  
...  
Keyword(s):  
Sandy Soil ◽  
Ground Improvement ◽  
Soil Improvement ◽  
Dynamic Compaction ◽  
Impact Point ◽  
Weak Zone ◽  
Factors Affecting ◽  
Improvement Effect ◽  
Drop Number ◽  
Highly Correlated

Dynamic compaction (DC) is one of the most popular methods for ground improvement. To solve the problem of the factors affecting the sandy soil improvement effect and estimate the effective improvement range under DC, the influences of drop number, drop energy, tamping distance, tamper radius, and drop momentum on the relative degree of improvement were investigated. Three normalized indicators Δδz,i, ΔδA,i, and ΔδU,i were derived to evaluate the weak zone and corresponding improvement effect. For multipoint tamping, it is found that the improvement depth and the improvement of the weak zone are highly correlated with drop energy and drop momentum, while the influence of the drop number and tamper radius is relatively smaller. The improvement of the weak zone and the improvement depth decrease with tamping distance, whereas the improvement area increases with tamping distance. The soil compacted by the previous impact point will be improved to a lesser extent with impact at subsequent impact points. It is also noted that drop energy had better not exceed the saturated drop energy in DC design. Based on the parametric study, a formula considering the various factors of DC was put forward, with the validation by two field cases of DC.

scholarly journals EFEK GAYA VERTIKAL PADA TANAH DENGAN INDEKS PLASTISITAS TINGGI TERHADAP WILAYAH SEKITAR PROYEK DI JAKARTA UTARA

2020 ◽  
Vol 3 (2) ◽  
pp. 487
Author(s):  
Staventram Inri ◽  
Alfred Jonathan Susilo
Keyword(s):  
Bearing Capacity ◽  
Soil Compaction ◽  
Shear Failure ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Soil Improvement ◽  
Dynamic Compaction ◽  
Lateral Movement ◽  
Theoretical Predictions ◽  
Driven Pile

Soil improvement is common in construction work to increase the bearing capacity of the soil so the soil can carry the burden of construction which will stand on that soil. The method often used is soil compaction to increase bearing capacity. Soil compaction results in a lateral movement of soil particles and causes an increase in soil pore water pressure. Soil compaction here uses drum roller and dynamic compaction. This gives an effect at a certain distance and has the potential to damage the surrounding buildings. Therefore, the engineer needs to predict a safe distance from the effects of the compaction process. This research conducted with theoretical predictions about the amount of lateral movement due to compaction with certain formulas. The same thing will happen when the driven pile is piling, it will cause around the pile lift up (pile heaving). The results of this theoretical prediction will be compared then compare with the results of measurements of lateral movements performed using general shear failure from Terzaghi method and stress distribution Boussinesq method. Both of the results will be compared as conclusions.AbstrakPerbaikan tanah sudah umum dilakukan dalam pekerjaan konstruksi dengan tujuan untuk meningkatkan daya dukung tanah agar dapat memikul beban konstruksi yang akan berdiri di atasnya. Metode yang sering digunakan yaitu pemadatan tanah untuk meningkatkan daya dukungnya. Pemadatan tanah mengakibatkan desakan butiran tanah ke arah lateral serta menimbulkan kenaikan tekanan air pori tanah. Pemadatan disini menggunakan tandem roller dan dynamic compaction. Hal ini memberikan pengaruh hingga jarak tertentu dan berpotensi merusak bangunan di sekitar. Oleh karena itu, perlu diprediksi jarak yang aman dari pengaruh proses pemadatan. Penelitian ini dilakukan dengan prediksi teoritis besarnya pergerakan tanah ke arah lateral akibat pemadatan dengan formula tertentu. Hal yang serupa juga sama ketika tiang pancang ditumbuk, akan menyebabkan tiang di sebelahnya terangkat (pile heaving). Hasil prediksi secara teori ini kemudian dibandingkan dengan hasil pengukuran kegagalan geser berdasarkan metode Terzaghi dan distribusi tegangan Boussinesq. Hasil keduanya akan dibandingkan sebagai kesimpulan.

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