Use of Dynamic Compaction in Constructing Subgrades Over Reclaimed Fills

Obtained stress distribution of hammer bottom according to the analysis of horizontal and vertical red sandstone fill dry density of the hammer bottom after dynamic compaction; affirmed the stress distribution situation of the hammer bottom through comparative analysis of the test results by laboratory and field monitoring.

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Computational Simulations of Dynamic Compaction of Dry Sand

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.598.516 ◽

2012 ◽

Vol 598 ◽

pp. 516-519

Author(s):

Yu Qing Ding ◽

Wen Hui Tang ◽

Xian Wen Ran ◽

Xin Xu

Keyword(s):

Computational Analysis ◽

Dynamic Compaction ◽

Back Surface ◽

Computational Results ◽

Two Dimensional ◽

Computational Simulations ◽

Plate Impact ◽

Arrival Times ◽

Dry Sand ◽

Impact Experiments

The computational analysis of plate impact experiments on dry sand utilizing the Mie- Grüneisen (MG) equation of state and the P-α compaction model were investigated in this study. A number of two dimensional axial symmetric computations were performed by using the hydrocode AUTODYN. The computational results were compared with the particle velocity on the back surface of the rear plate measured by the VISAR system and the first shock-wave arrival times detected by piezoelectric pins in the samples respectively. It was found that the P-α compaction model was more accurately reproduce the experimental data than the MG EOS.

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Dynamic Compaction and Compaction Grouting for Dewatering in Pit

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.170-173.789 ◽

2012 ◽

Vol 170-173 ◽

pp. 789-792

Author(s):

Shu Li Wang ◽

Dun Wu Chen ◽

Man Gen Mu ◽

Yao Yu Zhang

Keyword(s):

Porous Media ◽

Flow Control ◽

Groundwater Flow ◽

Case Studies ◽

Dynamic Compaction ◽

Fill Soil ◽

Compaction Grouting ◽

Recent Advances ◽

Deep Pit

China University of Geosciences (Beijing) has developed a dynamic compaction and compaction grouting (DCCG) method for groundwater flow control in Dalian. This method has been proven effective in dramatically reducing permeability in plain fill soil, and in granular or porous media. It has been successful used in many applications dealing with deep pit by coast. This paper presents the DCCG that has particular relevance in today’s pit construction marketplace by coast. Permeability can be improved by means of the DCCG. A brief introduction to the technique is followed by discussion of recent advances, illustrated by case studies of applications

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