堆石料注浆技术及注浆后力学性质试验研究

邓成进; 党发宁; 苗喆; 陈兴周

doi:10.11779/CJGE201910015

堆石料注浆技术及注浆后力学性质试验研究 English Version

邓成进^{1, 2},
党发宁¹,
苗喆²,
陈兴周³

1. 西安理工大学岩土工程研究所,陕西西安 710048;
2. 中国电建集团西北勘测设计研究院有限公司,陕西西安 710065;
3. 西安科技大学建筑与土木工程学院,陕西西安 710065

基金项目: 国家重点研发计划项目（2017YFC0404803）

详细信息

作者简介:
邓成进(1986—),男,博士研究生,主要从事土石坝试验和数值模拟研究工作。E-mail:dengchengjin@nwh.cn。

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出版历程
- 收稿日期: 2019-02-21
- 发布日期: 2019-10-24

Experimental study on grouting technology of rockfill and mechanical properties after grouting

1. Institute of Geotechnical Engineering, Xi'an University of Technology, Xi'an 710065, China;
2. Northwest Engineering Corporation Limited, Xi'an 710065, China;
3. School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an 710065, China

摘要

摘要: 采用自密实砂浆对砂岩堆石料进行现场注浆试验,验证堆石料注浆扩散范围的可控性及注浆技术的可行性;该注浆技术施工简单,注浆后堆石料之间形成砂浆胶结结构,减小了堆石料的孔隙率,改善了堆石料的力学性质。同时开展了室内静力大三轴试验,对比分析了注浆前后及不同级配特征情况下注浆堆石料的力学特性;研究了围压、粗颗粒含量对注浆堆石料力学性质的影响,讨论了不同围压、不同级配特征堆石料的强度参数和变形特征。试验表明,注浆极大提高了堆石料抵抗变形的能力;粗颗粒含量越高,骨架作用越显著,注浆后能形成相对稳定的胶结结构,堆石料的强度参数越高,抵抗变形的能力越好。
- 自密实砂浆 /
- 注浆堆石料 /
- 粗颗粒 /
- 胶结结构
Abstract: The self-compacting mortar is used to carry out on-site grouting tests on sandstone rockfill materials to verify the controllability of the diffusion range of rockfill grouting and the feasibility of grouting technology. The tests show that the grouting reduces the porosity of the rockfill and has mortar cementing between the rockfill materials, which improves the mechanical properties of the rockfill materials, and the grouting construction technology is simple. The laboratory static triaxial tests are carried out to study the mechanical properties of rockfill, and they are compared before and after grouting owing to the characteristics of different grades of rockfill. The influences of confining pressure and fine particle content on the mechanical properties of grouted rockfill are studied. The strength parameters and deformation characteristics of different confining pressures and gradation characteristics are discussed. The experimental results show that the capability of the rockfill to resist deformation is greatly improved after grouting. And the higher the content of coarse particles, the more significant the skeleton effect. The relatively stable cementing structure can be formed after grouting, and the higher the strength parameters of rockfill, the better its resistance to deformation.
- self-compacting mortar /
- grouting rockfill material /
- coarse particle /
- cementation structure

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参考文献(13)

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施引文献(7)

期刊类型引用(3)

1.	于新，何平平，陈晨，范霖，刘雨松，周子栋. 装配式路面结构设计、材料及施工研究进展. 华东交通大学学报. 2025(02): 15-34 . 百度学术
2.	彭鹏，彭峰，孙振宇，张顶立. 基于分形理论和Mori-Tanaka方法的颗粒土渗透注浆加固体性能预测方法及应用. 力学学报. 2022(11): 3099-3112 . 百度学术
3.	葛化永. 注浆技术在岩土工程施工中的应用研究. 冶金管理. 2020(17): 123-124 . 百度学术

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堆石料注浆技术及注浆后力学性质试验研究 English Version

作者简介: 邓成进(1986—),男,博士研究生,主要从事土石坝试验和数值模拟研究工作。E-mail:dengchengjin@nwh.cn。

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出版历程

Experimental study on grouting technology of rockfill and mechanical properties after grouting

期刊类型引用(3)

其他类型引用(4)

计量

出版历程

目录

作者简介:
邓成进(1986—),男,博士研究生,主要从事土石坝试验和数值模拟研究工作。E-mail:dengchengjin@nwh.cn。