淮北平原典型地基土动态变形模量特征及与承载力相关关系研究

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摘要针对淮北平原新近沉积层土质变化大、普遍发育钙质结核等地质特征，依托在建高速公路开展大量的动态平板载荷试验，统计分析不同土体动态变形模量的值域范围和变化规律，探讨淮北平原不同地质区域的分布特征。在此基础上，通过静力触探、螺旋板载荷和平板载荷对比试验，建立动态变形模量与比贯入阻力、地基承载力的相关关系式。研究表明，动态平板载荷试验作为一种便捷快速的原位检测方法，测试值能很好地反映原地基土体力学特性和变化规律，与比贯入阻力值、地基承载力具有较好的相关性，可在高速公路工程中作为地基承载力测定指标加以推广应用。

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关键词 ：土力学, 动态平板载荷试验, 动态变形模量, 地基承载力, 相关关系

Abstract：According to geological characteristics of recently sedimentary layer in Huaibei plain，such as existence of different soil and calcareous concretions，a large number of dynamic plate loading tests are carried out relying on highways under construction. The range and variation of dynamic deformation modulus are analyzed for different soils，and distribution characteristics of are discussed for different geological area in Huaibei plain. On this basis，relationships between the and penetration resistance，bearing capacity of foundation are established through static cone penetration tests，screw plate tests and plate loading tests. Studies show that，dynamic plate loading test is a fast and convenient in situ test，and mechanics characteristics and regularity of foundation soil can be reflected well by ，which has good relativity with penetration resistance of value and bearing capacity of the foundation. can be used in highway engineering as a foundation bearing capacity determination index.

Key words： soil mechanics dynamic plate loading test dynamic deformation modulus bearing capacity of foundation correlation

收稿日期: 2012-04-15

引用本文:

戴张俊，余飞，陈善雄. 淮北平原典型地基土动态变形模量特征及与承载力相关关系研究[J]. 岩石力学与工程学报, 2013, 32(s1): 2723-2729.
DAI Zhangjun，YU Fei，CHEN Shanxiong. RESEARCH ON CHARACTERISTICS OF DYNAMIC DEFORMATION MODULUS AND ITS CORRELATION WITH BEARING CAPACITY FOR TYPICAL SOIL IN HUAIBEI PLAIN. , 2013, 32(s1): 2723-2729.

链接本文:

http://www.rockmech.org/CN/Y2013/V32/Is1/2723

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