This paper introduces in detail the test method of moisture content and compactness of silty loam sample collected from Honghu segment of Yangtze River Embankment, the design and calibration of resistivity sample box, the test principle of resistivity and the process and steps of resistivity measurement. On the basis of analyzing test results, the correlations between moisture content, compactness and resistivity of silty loam sample are summarized. Under given compactness, water content displays a progressively decreasing power function with resistivity; at given water content, compactness is in a negative relation with resistivity. The measured resistivity range indoor is overall consistent with on-site detection result. The findings of laboratory tests will be of great significance in improving the quality of inversion interpretation and judging the nature and physical status of hidden dangers.
Key words
Yangtze River Embankment soil /
water content /
compactness /
resistivity /
resistivity sample box /
correlation /
nature of hidden dangers
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References
[1] 白广明,张耘菡,刘晓波,等.有渗漏隐患粘土堤坝电阻率模拟试验及分析[J].黑龙江水利,2017(12):12-19.
[2] 徐 鸿,许晓晔.电法在滏阳新河堤防隐患探测中的应用[J].西部探矿工程,2012(5):106-112.
[3] 马海涛,吴永锋,王云海,等.尾矿坝浸润线的坝面快速观测方法研究[J].中国安全生产科学技术,2010,6(1):31-34.
[4] 周仲华,郑 龙,孙 博.土遗址墙体含水量与电阻率关系研究[J].岩石力学与工程学报,2009(增刊2):4054-4058.
[5] 刘松玉,查甫生,于小军.土的电阻率室内测试技术研究[J] .工程地质学报,2006,l4(2):216-222.
[6] 查甫生,刘松玉,杜延军,等.非饱和黏性土的电阻率特性及其试验研究[J].岩土力学,2007,28(8):1671-1676.
[7] SL 188—2005,堤防工程地质勘察规程[S].北京:中国水利水电出版社,2005.
[8] SL 436—2008,堤防隐患探测规程[S].北京:中国水利水电出版社,2008.
[9] 冷元宝,黄建道,张震夏,等.堤坝隐患探测技术研究进展[J].地球物理学进展,2003,18(3):370-379.
[10]周玉明,刘 杰.从粘性土微观结构的角度论述含水量的变化对土的工程性质的影响[J].天津勘察,2003(2):42-51.
[11]SL 237—1999,土工试验规程[S].北京:中国水利水电出版社,1999.
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