Relativity Analysis on the Detection Methods of Compaction Degree for Expressway Subgrade

Abstract:

A test section was selected in Luo-San expressway.Four detection methods of compaction degree which are sand cone method, cutting ring, nuclear density instrument and drop hammer frequent mensuration£¨LY-1 apparatus£©have been adopted in testing road.And the detection results about four methods were analyzed and compared.Sand cone method was conducted as a standard method of field detection for compaction degree, other three methods were regressed with sand cone method,and the relationship was obtained. The relevance of cutting ring method with sand cone method is excellent,the relevance of other two methods with sand cone method is slightly bad which may because of the soil and construction methods.But in general, it is approved that sand cone method method which act as the standard one of detection for compaction degree is worthwhile extending.

• Periodical: Advanced Materials Research (Volume 413)
• Pages: 252-257
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.413.252
• Online since: December 2011
• Authors: Gui Juan Zhao
• Keywords: Compaction Degree, Cutting Ring Method, Drop Hammer Frequent Measuration, Expressway, Nuclear Density Instrument Method, Sand Cone Method, Subgrade, Tetection

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