Improvement in physical properties for ground treated with rapid impact compaction

Mohammed, M.M. and Hashim, Roslan and Salman, F.A. (2011) Improvement in physical properties for ground treated with rapid impact compaction. International Journal of Physical Sciences, 6 (22). pp. 5133-5140. ISSN 19921950 ,

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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 improving soil properties and controlling soil settlement. In this technique ground improvement is achieved by impacting the ground with a 7 ton weight, 35 times/min, and drop height of 0.8 m at 2.5 m c/c square grid spacing. Evaluation of improvement in soil properties was based on field data by comparing pre-treatment and post-treatment cone penetrometer test (CPT) soundings. An interpretation of soil properties from CPT was made using interpretation software to assess the degree of improvement achieved. Load test was conducted to estimate soil settlement. It was found that the RIC succeeded in improving soil properties like relative density from 45 to 70, increase the friction angle of soil by an average of 3° and reducing soil settlement criteria by 50.

Item Type: Article
Additional Information: Export Date: 16 December 2013 Source: Scopus Language of Original Document: English Correspondence Address: Mohammed, M. M.; Department of Civil Engineering, Faculty of Engineering, University of MalayaMalaysia; email: References: Charels, J.A., Watts, K.S., (2002) Treated Ground Engineering Properties and Performance, pp. C572. , London: CIRIA; Kristiansen, H., Davies, M., (2004) Ground Improvement Using Rapid Impact Compaction, p. 496. , 13th World Conference On Earthquake Eng Vancouver, B.C. Canada; Lunne, T., Robertson, P.K., Powell, J.J.M., Cone penetration test in geotechnical practice (1997) Blacker Acad. Prof, p. 312; Mohammed, M., Roslan, H., Firas, A.S., Effective Improvement Depth for Ground Treated with Rapid Impact Compaction (2010) Sci. Res. Essays, 5 (18), pp. 2686-2693; (2007) Cone Penetration Test, , National Cooperative Highway Research Program (NCHRP), SYNTHESIS 368, Georgia Inst. Technol., Atlanta, Georgia; Schmertmann, J.H., Static cone to compute static settlement over sand. American Society of Civil Engineers, ASCE (1970) J. Soil Mech. Found. Eng, 96 (3), pp. 1011-1043; Tan, B.K., Bachelor, B., Foundation problems in limestone areas - a case study in Kuala Lumpur, Malaysia (1981) Proc. Int. Symp, 3, pp. 1461-1463. , Weak Rock, Tokyo
Uncontrolled Keywords: Cone penetration test, Granular soils, Ground improvement, Improvement depth, In-situ testing, Load test, Physical properties, Rapid impact compaction (RIC), Soil compaction, Soil settlement
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 02 Apr 2014 01:28
Last Modified: 31 May 2019 05:04

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