新型静止侧压力系数试验仪的研制与应用

doi:10.16285/j.rsm.2016.2413

›› 2018, Vol. 39 ›› Issue (8): 3071-3076.doi: 10.16285/j.rsm.2016.2413

新型静止侧压力系数试验仪的研制与应用

朱俊高^{1, 2}，陆阳洋^{1, 2}，蒋明杰^{1, 2}，褚福永³

1. 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； 2. 河海大学江苏省岩土工程技术工程研究中心，江苏南京 210098；3. 丽水学院工程与设计学院，浙江丽水323000

收稿日期:2016-10-13 出版日期:2018-08-11 发布日期:2018-09-02
通讯作者: 陆阳洋，男，1989年生，博士研究生，主要从事土体基本性质、土石坝工程等方面的研究工作。E-mail：luyangyang@hhu.edu.cn E-mail:zhujungao@hhu.edu.cn
作者简介:朱俊高，男，1964年生，博士，教授，主要从事土体基本性质与本构关系、土石坝工程等方面的研究工作。
基金资助:
国家重点研发计划项目（No. 2017YFC0404804）；国家自然科学基金项目（No. 51479052）；教育部“创新团队发展计划”（No. IRT_15R17）；水利部堤防安全与病害防治工程技术研究中心开放课题基金项目。

Development and application of new apparatus for K0 test

ZHU Jun-gao^{1, 2}, LU Yang-yang^{1, 2}, JIANG Ming-jie^{1, 2}, CHU Fu-yong³

1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 2. Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University, Nanjing, Jiangsu 210098, China; 3. College of Engineering and Design, Lishui University, Lishui, Zhejiang 323000, China

Received:2016-10-13 Online:2018-08-11 Published:2018-09-02
Supported by:
This work was supported by the National Key R&D Program of China(2017YFC0404804), the National Natural Science Foundation of China (51479052), the Program for Innovative Research Team in University (IRT_15R17) and the Open Subject Fund Projects of Engineering Research Center of Dyke Safety and Disease Control of Ministry of Water Resources.

摘要/Abstract

摘要： 研制了一种新型静止侧压力系数试验仪，介绍了该仪器结构及工作原理。对干砂进行了试验，测定其静止侧压力系数，与传统的水囊式固结仪试验结果进行了对比。分析了该试验仪的可能误差来源，主要包括加载过程中的试样侧向变形和试样与压力室筒壁之间的摩擦力，具体分析了试样侧向变形引起值误差的大小，提出了摩擦力影响修正方法，充分论证了仪器的准确性和有效性。对某粗颗粒土进行了静止侧压力系数试验，测定了该土在加载及卸载条件下随应力状态的变化，验证了仪器对粗颗粒土的适用性。该仪器结构简单，操作方便，结果准确，适用于包括粗颗粒土在内的各种土的试验，克服了现有的静止侧压力系数试验仪不适用于粗颗粒土的缺陷，而且适用高应力范围。

关键词: 粗颗粒土, 静止侧压力系数, 侧壁摩擦力, 新型K0试验仪

Abstract: In this paper, the large apparatus to measure static lateral pressure coefficient was introduced. The value of dry sand was tested by using the apparatus. The dry-sand test result was used to compare with the test of the water-bag type oedometer. The friction of the sidewall produced during the experiment was amended, and the deviation caused by lateral expansion were also analyzed. The accuracy and effectiveness of the apparatus was validated. Coarse granular soil was tested by this apparatus. And the change of under various stress conditions was tested, which verified the applicability of the apparatus to coarse granular soil. It is convenient in operation, stable in performance, and precise in accuracy. It can be used to test the static lateral pressure coefficient of large practical size coarse grained soil, which is hard to get with the traditional instrument.

Key words: coarse grained soil, at-rest lateral pressure coefficient, side wall friction, new-type apparatus for K0 test

中图分类号:

TU 415

朱俊高，陆阳洋，蒋明杰，褚福永，. 新型静止侧压力系数试验仪的研制与应用[J]. , 2018, 39(8): 3071-3076.

ZHU Jun-gao, LU Yang-yang, JIANG Ming-jie, CHU Fu-yong，. Development and application of new apparatus for K0 test[J]. , 2018, 39(8): 3071-3076.

参考文献

相关文章 9

[1]	喻昭晟, 陈晓斌, 张家生, 董亮, ABDOULKADER M S. 粗颗粒土的静止土压力系数非线性分析与计算方法[J]. 岩土力学, 2020, 41(6): 1923-1932.
[2]	丁建源, 陈晓斌, 张家生, 刘怡吟, 肖源杰, . 基于对数几率回归模型的粗颗粒土颗粒破碎过程演化研究[J]. 岩土力学, 2019, 40(4): 1465-1473.
[3]	朱俊高, 蒋明杰, 陆阳洋, 吉恩跃, 罗学浩, . 应力状态对粗颗粒土静止侧压力系数影响试验研究[J]. 岩土力学, 2019, 40(3): 827-833.
[4]	冷伍明，刘文劼，赵春彦，周文权，杨奇 , . 重载铁路路基压实粗颗粒土填料动力破坏规律试验研究[J]. , 2015, 36(3): 640-646.
[5]	陈仁朋，吴进，亓帅，王瀚霖,. 高铁路基粗颗粒土水力学参数测试方法研究[J]. , 2015, 36(12): 3365-3372.
[6]	朱福、战高峰、佴磊、. 天然软土地基路堤临界高度一种计算方法研究[J]. , 2013, 34(6): 1738-1744.
[7]	隋凤涛，王士杰. 统一强度理论在地基承载力确定中的应用研究[J]. , 2011, 32(10): 3038-3042.
[8]	唐晓松，郑颖人，董诚. 应用神经网络预估粗颗粒土的渗透系数[J]. , 2007, 28(S1): 133-136.
[9]	张嘎，张建民. 粗颗粒土的应力应变特性及其数学描述研究[J]. , 2004, 25(10): 1587-1591.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

新型静止侧压力系数试验仪的研制与应用

Development and application of new apparatus for K0 test

PDF (Chinese)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 9

Metrics

本文评价

推荐阅读 0