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Effective improvement depth for ground treated with rapid impact compaction

Ground improvement has been used on many construction sites to densify granular material, in other word, to improve soil properties and reduce potential settlement. This paper evaluates the efficiency of rapid impact compaction (RIC), which is an improvement on the process of deep dynamic compaction...

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Main Authors: Mohammed Mohammed, M., Hashim, Roslan, Firas Salman, A.
Format: Article
Language:English
Published: 2010
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/8846/1/Effective_improvement_depth_for_ground_treated_with_rapid_impact_compaction.pdf
http://eprints.um.edu.my/8846/
http://www.scopus.com/inward/record.url?eid=2-s2.0-78649403028&partnerID=40&md5=659a1b9e9c6f1841a4d10133ef22516c towerbridgecommons.com/wp-content/uploads/2012/11/RICSafeandEffectiveforUrbanUse.pdf
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spelling my.um.eprints.88462019-05-31T05:01:33Z http://eprints.um.edu.my/8846/ Effective improvement depth for ground treated with rapid impact compaction Mohammed Mohammed, M. Hashim, Roslan Firas Salman, A. TA Engineering (General). Civil engineering (General) Ground improvement has been used on many construction sites to densify granular material, in other word, to improve soil properties and reduce potential settlement. This paper evaluates the efficiency of rapid impact compaction (RIC), which is an improvement on the process of deep dynamic compaction, in ground improvement. In this technique, ground improvement is achieved by impacting the ground with a 7 tone weight, 35 times/min, and drop height of 0.8 m at 2.5 m C/C square grid spacing. Method evaluation is made by comparing the tip resistance of pre-treatment and post treatment cone penetrometer test (CPT) soundings. However, the effective improvement depths and the factors affecting the depth are discussed, and a formula for calculating the effective depth is presented. Vibration monitoring was conducted to check the effect of the vibrations born by RIC machine on the adjacent structures to assess how much the process is considered environmentally friendly and accordingly the challenging locations it can reach especially in the urban areas. It was found that the RIC succeeded in achieving the required degree of improvement, improvement depth depends on soil properties and energy applied; and the effective improvement depth formula presented by this study is true when the soil is granular and homogeneous with depth. Vibrations by RIC machine were within allowable limits and with controlled effect on the adjacent structures. 2010 Article PeerReviewed application/pdf en http://eprints.um.edu.my/8846/1/Effective_improvement_depth_for_ground_treated_with_rapid_impact_compaction.pdf Mohammed Mohammed, M. and Hashim, Roslan and Firas Salman, A. (2010) Effective improvement depth for ground treated with rapid impact compaction. Scientific Research and Essays, 5 (18). pp. 2686-2693. ISSN 19922248 http://www.scopus.com/inward/record.url?eid=2-s2.0-78649403028&partnerID=40&md5=659a1b9e9c6f1841a4d10133ef22516c towerbridgecommons.com/wp-content/uploads/2012/11/RICSafeandEffectiveforUrbanUse.pdf
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Mohammed Mohammed, M.
Hashim, Roslan
Firas Salman, A.
Effective improvement depth for ground treated with rapid impact compaction
description Ground improvement has been used on many construction sites to densify granular material, in other word, to improve soil properties and reduce potential settlement. This paper evaluates the efficiency of rapid impact compaction (RIC), which is an improvement on the process of deep dynamic compaction, in ground improvement. In this technique, ground improvement is achieved by impacting the ground with a 7 tone weight, 35 times/min, and drop height of 0.8 m at 2.5 m C/C square grid spacing. Method evaluation is made by comparing the tip resistance of pre-treatment and post treatment cone penetrometer test (CPT) soundings. However, the effective improvement depths and the factors affecting the depth are discussed, and a formula for calculating the effective depth is presented. Vibration monitoring was conducted to check the effect of the vibrations born by RIC machine on the adjacent structures to assess how much the process is considered environmentally friendly and accordingly the challenging locations it can reach especially in the urban areas. It was found that the RIC succeeded in achieving the required degree of improvement, improvement depth depends on soil properties and energy applied; and the effective improvement depth formula presented by this study is true when the soil is granular and homogeneous with depth. Vibrations by RIC machine were within allowable limits and with controlled effect on the adjacent structures.
format Article
author Mohammed Mohammed, M.
Hashim, Roslan
Firas Salman, A.
author_facet Mohammed Mohammed, M.
Hashim, Roslan
Firas Salman, A.
author_sort Mohammed Mohammed, M.
title Effective improvement depth for ground treated with rapid impact compaction
title_short Effective improvement depth for ground treated with rapid impact compaction
title_full Effective improvement depth for ground treated with rapid impact compaction
title_fullStr Effective improvement depth for ground treated with rapid impact compaction
title_full_unstemmed Effective improvement depth for ground treated with rapid impact compaction
title_sort effective improvement depth for ground treated with rapid impact compaction
publishDate 2010
url http://eprints.um.edu.my/8846/1/Effective_improvement_depth_for_ground_treated_with_rapid_impact_compaction.pdf
http://eprints.um.edu.my/8846/
http://www.scopus.com/inward/record.url?eid=2-s2.0-78649403028&partnerID=40&md5=659a1b9e9c6f1841a4d10133ef22516c towerbridgecommons.com/wp-content/uploads/2012/11/RICSafeandEffectiveforUrbanUse.pdf
_version_ 1643688404145143808
score 13.211869

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