Researches on Synergistic Effect and Mechanism of Pile-slurry for Reinforcement of Fissure Grouting in Earthen Sites

doi:10.15961/j.jsuese.201901036

IR > 土木工程学院

	Researches on Synergistic Effect and Mechanism of Pile-slurry for Reinforcement of Fissure Grouting in Earthen Sites
	Cui K(崔凯)1,2 ; Wang XH(汪小海)1; Chen WW(谌文武)2; Feng F(冯飞)1; Cheng FQ(程富强)1
	2021-03-20
发表期刊	Gongcheng Kexue Yu Jishu/Advanced Engineering Science
ISSN	2096-3246
卷号	53 期号:2 页码:66-74
摘要	Researches show that the slurry with quick lime as admixture is well compatible with earthen sites, and adding the micro-lime piles into this slurry can better eliminate shrinkage differentiation phenomenon of the slurry-soil interface. In order to explore the reinforcement effect and mechanism under the synergy of pile-slurry, fissure grouting of indoor earthen sites was carried out under single grouting technology and pile-slurry synergistic reinforcement technology with the width-diameter ratio of 1.5, 2.0, 2.5 and 3.0 (ratio of crack width to lime pile diameter). After curing for 63 days, the macro-properties (penetration resistance, density, liquid plastic limits and particle composition) of equidistant soil on both sides of the fissures were tested. Then the reinforcement effects of the soil on both sides of fissure were qualitatively and quantitatively analyzed by scanning electron microscopy, the specific surface area, cation exchange capacity and pore relative change rate of soil (Pr). The results showed that the reinforcement effect was better than that of single grouting when the width-diameter ratio was less than 2.5. The effect of soil reinforcement increased first and then decreased as the width-diameter ratio increases, and was the best when width-diameter ratio equaled to 2.0, and was weaker than that of single grouting when the width-diameter ratio was more than 3.0. The essence reflected by the results was that the compaction and agglomeration of soil on both sides of fissures caused by the expansion and ion migration of lime pile and slurry were not a simple linear superposition, but when the width-diameter ratio was more than 2.0, the slurry would obviously inhibit the compaction and agglomeration of the lime pile. Copyright ©2021 Advanced Engineering Sciences. All rights reserved.
关键词	Agglomeration Compaction Concrete construction Grouting Lime Mortar Reinforcement Scanning electron microscopy Soils Cation exchange capacities Linear superpositions Particle composition Penetration resistances Reinforcement effects Reinforcement technologies Soil reinforcement Synergistic effect
DOI	10.15961/j.jsuese.201901036
收录类别	EI
语种	中文
出版者	Sichuan University
EI入藏号	20211310141846
EI主题词	Piles
EI分类号	405.2 Construction Methods ; 408.2 Structural Members and Shapes ; 412 Concrete ; 414.3 Mortar (Before 1993, use code 412) ; 483.1 Soils and Soil Mechanics ; 802.3 Chemical Operations ; 804.2 Inorganic Compounds ; 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148369
专题	土木工程学院
通讯作者	Wang XH(汪小海)
作者单位	1.兰州理工大学西部土木工程防灾减灾教育部工程研究中心; 2.兰州大学西部灾害与环境力学教育部重点实验室
第一作者单位	甘肃省土木工程防灾减灾重点实验室
通讯作者单位	甘肃省土木工程防灾减灾重点实验室
第一作者的第一单位	甘肃省土木工程防灾减灾重点实验室
推荐引用方式 GB/T 7714	Cui K,Wang XH,Chen WW,et al. Researches on Synergistic Effect and Mechanism of Pile-slurry for Reinforcement of Fissure Grouting in Earthen Sites[J]. Gongcheng Kexue Yu Jishu/Advanced Engineering Science,2021,53(2):66-74.
APA	崔凯,汪小海,谌文武,冯飞,&程富强.(2021).Researches on Synergistic Effect and Mechanism of Pile-slurry for Reinforcement of Fissure Grouting in Earthen Sites.Gongcheng Kexue Yu Jishu/Advanced Engineering Science,53(2),66-74.
MLA	崔凯,et al."Researches on Synergistic Effect and Mechanism of Pile-slurry for Reinforcement of Fissure Grouting in Earthen Sites".Gongcheng Kexue Yu Jishu/Advanced Engineering Science 53.2(2021):66-74.