Characteristics of Structural Parameters Changes of Collapsible Loess

doi:10.3969/j.issn.1674-0696.2014.04.21

Journal of Chongqing Jiaotong University(Natural Science) ›› 2014, Vol. 33 ›› Issue (4): 101-105.DOI: 10.3969/j.issn.1674-0696.2014.04.21

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Characteristics of Structural Parameters Changes of Collapsible Loess

Yuan Kangfeng¹, Shen Junmin¹, Li Hongru²

1. Key Laboratory of Highway Construction & Maintenance Technology in Loess Region of Ministry of Transport, Shanxi Provincial Research Institute of Communications, Taiyuan 030006, Shanxi, China; 2. School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, Shaanxi, China

Received:2013-07-25 Revised:2013-10-12 Online:2014-08-15 Published:2015-03-10

湿陷性黄土结构性参数变化特性研究

员康锋¹，申俊敏¹，李宏儒²

1.山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室，山西太原 030006； 2.西安理工大学土木建筑工程学院，陕西西安 710048)

作者简介:员康锋(1984—)，男，山西运城人，硕士，主要从事黄土力学及数值模拟研究工作。E-mail:yuankangfeng@163.com。

Abstract

Abstract: In certain stress conditions, uniform humidifier direct shear test was carried out with the help of the remanufactured stress direct shear apparatus. Humidifier water was precisely controlled through the installation of flowmeter. The variation law of vertical displacement in the shear process of loess humidifier was also studied. The results show that: the vertical displacement is max at the vertical pressure 200 kPa. The vertical displacement of remolded loess is greater than that of undisturbed loess. The structural parameters decrease with the increase of vertical pressure and humidifier water.

Key words: geotechnical engineering;collapsible loess, vertical displacement, vertical pressure, humidifier water, structural parameters

摘要： 利用改制的应力式直剪仪进行一定应力条件的均匀增湿直剪试验，通过加装流量计，精确控制增湿含水量，研究了黄土增湿剪切过程中竖向位移的变化规律。试验结果表明：竖向位移在竖向压力为200kPa时最大；重塑黄土的竖向位移大于原状黄土的竖向位移；结构性参数随竖向压力与增湿含水量的增大均减小。

关键词: 岩土工程, 湿陷性黄土, 竖向位移, 竖向压力, 增湿含水量, 结构性参数

CLC Number:

TU411.3

Yuan Kangfeng, Shen Junmin, Li Hongru. Characteristics of Structural Parameters Changes of Collapsible Loess[J]. Journal of Chongqing Jiaotong University(Natural Science), 2014, 33(4): 101-105.

员康锋，申俊敏，李宏儒. 湿陷性黄土结构性参数变化特性研究[J]. 重庆交通大学学报（自然科学版）, 2014, 33(4): 101-105.

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Characteristics of Structural Parameters Changes of Collapsible Loess

湿陷性黄土结构性参数变化特性研究

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