规则齿形结构面剪切-渗流耦合特性

朱瑞娟; 顾琳琳

doi:10.13204/j.gyjzG19121607

规则齿形结构面剪切-渗流耦合特性

doi: 10.13204/j.gyjzG19121607

朱瑞娟¹,
顾琳琳^2, ,

1. 大同煤炭职业技术学院, 山西大同 037003;
2. 南京理工大学土木工程系, 南京 210094

基金项目:

国家自然科学基金项目（51908288）。

详细信息

作者简介:
朱瑞娟,女,1985年出生,硕士,讲师。

通讯作者:
顾琳琳,女,1987年出生,博士,讲师,Linlin_gu@njwst.edu.cn。

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- 文章访问数: 91
- HTML全文浏览量: 10
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2019-12-16

SHEAR-SEEPAGE-COUPLING CHARACTERISTICS OF ROCK DISCONTINUITY IN SERRATED INTERFACES

ZHU Ruijuan¹,
GU Linlin^{2
, ,}

1. Datong Vocational and Technical College of Coal, Datong 037003, China;
2. Nanjing University of Science and Technology, Department of Civil Engineering, Nanjing 210094, China

摘要

摘要: 岩石结构面是工程岩体的重要特性，而其渗流特性往往是影响其稳定性的重要因素。为进一步研究岩体结构面的渗流特性，将天然结构面试样的表面形态简化为规则齿形，利用石膏浇筑了人工岩石结构面，并对其开展一系列的结构面剪切-渗流耦合试验，研究结构面剪切过程中水力特性及力学性质的变化规律。试验结果表明：规则齿形结构面的抗剪强度与齿形的角度、法向荷载和渗透压力密切相关；渗透压力对结构面起到软化作用，在较高渗透压力下抗剪强度明显减小，水力开度明显增大；结构面在剪切过程中的切齿效应也随渗透压力的增大而更加显著。
- 齿形结构面 /
- 剪切-渗流 /
- 规则齿形 /
- 水力开度 /
- 渗透压力 /
- 剪切强度
Abstract: The discontinuity is an important characteristic of engineering rock mass, and the seepage characteristic is generally an important factor affecting its stability. In order to further study the seepage characteristic of rock discontinuity, the interface form of natural discontinuity was simplified to be a regular serrated shape, and the artificial rock discontinuity was cast by gypsum, and a series of shearing and seepage coupling tests was carried out to investigate the hydraulic and mechanical properties subjected to discontinuity shearing. The test results showed that the shearing strength of regular serrated interface discontinuity was closely related to serrated angles, normal loading and seepage pressure; the shearing strength decreased obveriously and hydraulic apertures enlarged a lot under high seepage pressure because of softening effect on discontinuity subjected to seepage pressure; the cutting tooth effect was more significant with the increase of seepage pressure during shearing process.
- discontinuity with serrated /
- shear-seepage /
- regular serrated interface /
- hydraulic aperture /
- seepage pressure /
- shearing strength

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参考文献(18)

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