| 真空降水联合强夯法加固粉土路基的研究 |
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| 引用本文： | 彭中浩,陈永辉,陈庚,高世虎,张婉璐.真空降水联合强夯法加固粉土路基的研究[J].河北工程大学学报(社会科学版),2015,32(2):47-51. |
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| 作者姓名： | 彭中浩 陈永辉 陈庚 高世虎 张婉璐 |
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| 作者单位： | 河海大学 岩土工程科学研究所, 江苏 南京 210098;河海大学 岩土力学与堤坝工程教育部重点实验室, 江苏 南京 210098;河海大学 岩土工程科学研究所, 江苏 南京 210098;河海大学 岩土力学与堤坝工程教育部重点实验室, 江苏 南京 210098;河海大学 岩土工程科学研究所, 江苏 南京 210098;河海大学 岩土力学与堤坝工程教育部重点实验室, 江苏 南京 210098;河海大学 岩土工程科学研究所, 江苏 南京 210098;河海大学 岩土力学与堤坝工程教育部重点实验室, 江苏 南京 210098;河海大学 岩土工程科学研究所, 江苏 南京 210098;河海大学 岩土力学与堤坝工程教育部重点实验室, 江苏 南京 210098 |
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| 基金项目： | 浙江省交通运输厅科技计划项目(2014H01);江苏省高校研究生科技创新计划(2013B26714) |
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| 摘 要： | 结合绍兴滨海新城新东线道路的软基处理工程,进行了真空井点降水联合强夯法的现场试验研究。试验过程中对每遍处理过程中的孔隙水压力、地下水位、施工沉降进行了实时监测和分析,并对加固后的路基进行静力触探检测和地基承载力检测。结果表明:真空井点降水联合强夯法可有效加固深厚饱和粉土路基,能加快孔隙水压力消散,缩短工期;并使加固后土体的Ps值和地基承载力显著提高,有效加固深度达8 m,处理效果显著。
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| 关 键 词： | 真空井点降水联合强夯法 饱和粉土 现场试验 加固深度 |
Experimental research on dynamic consolidation method combined with vacuum well point dewatering to reinforcesilt subgrade |
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| Authors: | PENG Zhong-hao CHEN Yong-hui CHEN Geng GAO Shi-hu and ZHANG Wan-lu |
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| Institution: | Geotechnical Research Institute, Hohai University, Jiangsu Nanjing 210098, China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Jiangsu Nanjing 210098, China;Geotechnical Research Institute, Hohai University, Jiangsu Nanjing 210098, China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Jiangsu Nanjing 210098, China;Geotechnical Research Institute, Hohai University, Jiangsu Nanjing 210098, China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Jiangsu Nanjing 210098, China;Geotechnical Research Institute, Hohai University, Jiangsu Nanjing 210098, China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Jiangsu Nanjing 210098, China;Geotechnical Research Institute, Hohai University, Jiangsu Nanjing 210098, China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Jiangsu Nanjing 210098, China |
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| Abstract: | Combining with the new east coastal city of Shaoxing road soft ground treatment works, the in-situ experiment of dynamic consolidation method combined with vacuum well point dewatering is carried out. Construction settlement, underground water level and excess pore water pressure are measured and analyzed in the experiment, and conduct static cone penetration and bearing capacity are tested after reinforcement. The results showed: High Vacuum Densification method can effectively reinforce deep saturated silt subgrade, can accelerate the dissipation of pore water pressure, shorten the construction period; and significantly improve the value and bearing capacity of foundation soil reinforcement after the effective reinforcement depth of 8m, treatment effect to meet the design requirements, which has a certain reference value for similar reinforcement deep saturated silt roadbed coastal areas. |
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| Keywords: | dynamic consolidation method combined with vacuum well point dewatering saturated silt in-situ test reinforcement depth |
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