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土压力盒标定方法研究
引用本文:蒋明杰,朱俊高,沈靠山,吉恩跃,钱彬.土压力盒标定方法研究[J].河北工程大学学报,2015,32(3):5-8.
作者姓名:蒋明杰  朱俊高  沈靠山  吉恩跃  钱彬
作者单位: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 岩土工程研究所, 江苏 南京 21009;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 岩土工程研究所, 江苏 南京 21009;浙江省钱塘江管理局 勘测设计院, 浙江 杭州 310016;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 岩土工程研究所, 江苏 南京 21009;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 岩土工程研究所, 江苏 南京 21009
基金项目:973计划课题(2013CB036404);高等院校博士学科点专项科研基金(20110094110002);江苏省“六大人才高峰”项目资助,中央高校科研基金(2014B34014)
摘    要:采用刚性加载和柔性加载的方式,分别对粗粒土进行了土压力盒砂标试验,即砂标方法 1和砂标方法 2,并设计了一种新型标定方法砂标方法 3来与之对比。结果发现除了砂标方法 1标定曲线离散率太高,明显不能运用于实际以外;砂标方法 2和砂标方法 3标定曲线离散率小,可以满足室内试验精度及实际工程应用要求。然后在室内进行大型压缩试验,研究砂标方法2、砂标方法 3以及厂家提供的水标方法和笔者改善后的修正水标法在土中的适用性,经研究发现砂标方法 2和修正水压标定法对土压力的计算较适用。

关 键 词:土压力盒  砂标方法  水标方法  标定曲线
收稿时间:2015/4/24 0:00:00

Research of methods of pressure box calibration
Authors:JIANG Ming-jie  ZHU Jun-gao  SHEN Kao-shan  JI En-yue and QIAN Bin
Affiliation: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;Zhejiang Qian Tang River Management Bureau Survey Design Institute, Zhejiang Hanzhou 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
Abstract:The author uses the rigid and flexible loading method,respectively for pressure box calibration of coarse-grained soil,which is the first sand pressure calibration method and the second sand pressure calibration method,and designed a new methods of pressure box calibration of coarse-grained soil which is the first sand pressure calibration method comparing with them.Study found that except that the first sand pressure calibration method obviously can not be applied to practical because of the high discrete rate of the calibration curve,the second and third sand pressure calibration method have a low discrete rate of the calibration curve,which can meet the accuracy of laboratory test and engineering application requirements.Then,through the large compression experiment in door,the author study applicability of the second and third sand pressure calibration method and water pressure calibration method that manufacturers provide and the author have improved,The results show that,the second sand pressure calibration method and improved water pressure calibration method are applicable to the count of soil pressure.
Keywords:pressure box calibration  sand pressure calibration method  water pressure calibration method  the calibration curve
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