Detecting Subgrade Compaction by Soil Density Gauge

doi:10.3969/j.issn.1674-0696.2012.06.17

Journal of Chongqing Jiaotong University(Natural Science) ›› 2012, Vol. 31 ›› Issue (6): 1165-1170.DOI: 10.3969/j.issn.1674-0696.2012.06.17

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Detecting Subgrade Compaction by Soil Density Gauge

Gu Huanda¹，Du Zhiliang¹，Xue Guoqiang²，Hu Shun³

1. School of Civil Engineering，Suzhou University of Science ＆ Technology，Suzhou 215011，Jiangsu，China; 2. City Building Department of Changshu，Suzhou 215500，Jiangsu，China; 3. Engineering Quality Inspection Center of Changshu，Suzhou 215556，Jiangsu，China

Received:2012-07-23 Revised:2012-09-05 Online:2012-12-15 Published:2014-10-31

SDG 密度仪填土压实度检测试验

顾欢达¹，杜智亮¹，薛国强²，胡舜³

1. 苏州科技学院土木工程学院，江苏苏州215011; 2. 常熟市住建局，江苏苏州215500; 3. 常熟市工程质量检测中心，江苏苏州215500)

作者简介:顾欢达(1958—)，男，江苏无锡人，教授，博士，主要从事软土地基处理技术及原理等方面的研究工作。E-mail:ghdgx@163.com。

Abstract

Abstract: SDG is a density gauge based on electromagnetism principle． It could be used as a rapid nondestructive detecting method to detect subgrade compaction，which is helpful to real-time dynamic detecting of subgrade compaction． With site and laboratory tests，it cloud be concluded that the SDG is suitable for compaction detecting of clayey embankment with favorable stability and dependability，especially for the clayey embankment which dry density is near or above 1． 5g /cm3 ．

Key words: SDG density gauge, compaction degree, sand cone method

摘要： SDG 密度仪是一种基于电磁学原理的密度检测仪，在用于路基填土压实度检测过程中，可进行现场压实填土密实度的快速无损检测，从而实现对现场填土压实质量的动态实时检验与控制。根据密度仪的特性实施现场与室内模拟试验，结果显示SDG 密度仪具有良好的稳定性与可靠性，适合于黏性填土密度的快速无损检测，尤其是对于干密度为1． 5 g /cm3 以上的黏性填土显示良好的准确性与可靠性。

关键词: SDG 密度仪, 压实度, 灌砂法

CLC Number:

U412.36

Gu Huanda，Du Zhiliang，Xue Guoqiang，Hu Shun. Detecting Subgrade Compaction by Soil Density Gauge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2012, 31(6): 1165-1170.

顾欢达，杜智亮，薛国强，胡舜. SDG 密度仪填土压实度检测试验[J]. 重庆交通大学学报（自然科学版）, 2012, 31(6): 1165-1170.

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Detecting Subgrade Compaction by Soil Density Gauge

SDG 密度仪填土压实度检测试验

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