Rock and Soil Mechanics ›› 2021, Vol. 42 ›› Issue (6): 1501-1511.doi: 10.16285/j.rsm.2020.1466

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Influence of grouting mode on the adhesion property of slurry-soil interface for fissure reinforcement of earthen sites

CUI Kai1, YU Xiang-peng1, PEI Qiang-qiang2, WANG Xiao-hai1, XU Peng-fei1   

  1. 1. Western Center of Disaster Mitigation in Civil Engineering, Ministry of Education, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 2. National Technological Research Center for Conservation of Ancient Wall Paintings and Earthen Heritage Sites, Dunhuang Academy, Dunhuang, Gansu 736200, China
  • Received:2020-09-29 Revised:2021-02-08 Online:2021-06-11 Published:2021-06-15
  • Supported by:
    This work was supported by the National Natural Science Foundation of China(52068050, 41562015) and the Program for Changjiang Scholars and Innovative Research Team in University of Education of China(2017IRT17051).

PDF (Chinese)

240

Abstract: The adhesion property of slurry-soil interface is the key issue of fissure reinforcement and earthen sites repair, and the shear strength is a key index to evaluate the adhesion property of the interface. In order to investigate the influence of SH-(CaO+F+C) slurry, interface roughness and number of lime piles on the adhesion property of slurry-soil interface in the fissure grouting system of earthen sites, the wave velocity and shear behavior of slurry-soil interface (interface failure mode, shear stress-strain curve and ultimate shear strength) with different ages and grouting modes are analyzed by indoor direct shear tests. The results show that shear strength of the interface formed by four grouting modes increase with the increase of ages, and reach stable by 63 days under the influence of the mixed slurry combined of quick lime, fly ash and modified polyvinyl. The main failure mode of the interface among all ages is the bonding failure; in addition, the thickness of the residual soil on the surface, the peak shear stress and the equivalent shear coefficient of different reinforced interfaces can be arranged in a descending order as follows: grouting with lime piles and grooves, grouting with grooves, grouting with lime piles and grouting alone. The above phenomenon are caused by different combinations of infiltration, expansion and compaction, heating, mechanical occlusion and ion migration mechanisms.

Key words: earthen sites, interface of slurry-soil, adhesion property, consolidation mechanism

CLC Number: 

  • TU521
[1] HE Fa-guo, LÜ Ran, SU Hua-zhong, ZHOU Jin, ZHANG Jing-ke, WANG Nan, . Durability test and reinforced mechanism on adding SH materials into soil of archaeological sites [J]. Rock and Soil Mechanics, 2019, 40(S1): 297-307.
[2] CUI Kai, HUANG Jing-jing, CHEN Wen-wu, WANG Dong-hua, HAN Ning, . Research on selection of anchor slurry and performance of mixed quick lime in earthen sites [J]. Rock and Soil Mechanics, 2019, 40(6): 2183-2191.
[3] ZHANG Jing-ke, SHAN Ting-ting, WANG Yu-chao, WANG Nan, FAN Meng, ZHAO Lin-yi, . Mechanical properties of soil-grout interface of anchor system in earthen sites [J]. Rock and Soil Mechanics, 2019, 40(3): 903-912.
[4] CHEN Wen-wu, ZHANG Qi-yong, LIU Hong-wei, . Infiltration grouting diffusion law of SH agent in earthen sites [J]. Rock and Soil Mechanics, 2019, 40(2): 429-435.
[5] CUI Kai, FENG Fei, CHEN Wen-wu, WANG Xiao-hai, CHENG Fu-qiang, . Study on the mechanical compatibility of fissure grouting slurry with quick lime and grouting technology optimization in earthen sites [J]. Rock and Soil Mechanics, 2019, 40(12): 4627-4636.
[6] PEI Qiang-qiang, WANG Xu-dong, GUO Qing-lin, ZHANG Bo,ZHAO Guo-jing, ZHAO Jian-zhong, . Laboratory test of deformation mechanism of rammed roof-propping reinforcement at earthen heritage sites in arid environment [J]. , 2018, 39(8): 2755-2764.
[7] CUI Kai, WANG Dong-hua, CHEN Wen-wu, REN Xiao-feng, LIU Jian, YANG Guang，. Comparative study of anchorage performance of three types of bolts fully grouted by modified glutinous rice mortar [J]. , 2018, 39(2): 498-506.
[8] WEI Guo-feng , ZHANG Bing-jian , YANG Fu-wei , HU Bao-zhong , CHEN Bing , WANG Xu-dong. Consolidation of historical earthen sites under moisture circumstance using calcium-based hydraulic consolidant [J]. , 2012, 33(3): 702-712.
[9] ZHANG Xiao-ping ，WANG Si-jing ，LI Li ，WANG Yan-bing . Particle simulation on the effect of potassium silicate reinforcement of ancient earthen site soil to reduce wind erosion [J]. , 2012, 33(11): 3465-3471.
[10] ZHOIU huan , ZHANG Bing-jian , CHEN Gang-quan , ZHANG Hai-ying , ZENG Yu-yao , . Study on consolidation and conservation of historical earthen sites in moisture circumstances conservation of Tangshan Site in situ [J]. , 2008, 29(4): 954-962.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] WEI Li，CHAI Shou-xi，CAI Hong-zhou，WANG Xiao-yan，LI Min3，SHI Qian. Research on tensility of wheat straw for reinforced material[J]. , 2010, 31(1): 128 -132 .
[2] HUANG Qing-xiang, ZHANG Pei, DONG Ai-ju. Mathematical model of “arch beam” of thick sandy soil layer movement in shallow seam[J]. , 2009, 30(9): 2722 -2726 .
[3] JING Zhi-dong, LIU Jun-xin. Experimental research on dynamic deformations of semi-rigid structures of subgrade bed-mudstone of red beds[J]. , 2010, 31(7): 2116 -2121 .
[4] LIU Zheng-hong，LIAO Yan-hong，ZHANG Yu-shou. Preliminary study of physico-mechanical properties of Luanda sand[J]. , 2010, 31(S1): 121 -126 .
[5] WANG Deng-ke，LIU Jian，YIN Guang-zhi，WEI Li-de. Research on influencing factors of permeability change for outburst-prone coal[J]. , 2010, 31(11): 3469 -3474 .
[6] FAN Heng-hui, GAO Jian-en, WU Pu-te, LUO Zong-ke. Physicochemical actions of stabilized soil with cement-based soil stabilizer[J]. , 2010, 31(12): 3741 -3745 .
[7] ZHANG Cheng-ping，ZHANG Ding-li，LUO Jian-jun，WANG Meng-shu，WU Jie-pu. Remote monitoring system applied to the construction of metro station undercrossing existing metro tunnel[J]. , 2009, 30(6): 1861 -1866 .
[8] WANG Jun, CAO Ping, LI Jiang-teng, LIU Ye-ke. Analysis of stability of tunnel-slope with rheological medium under rainfall infiltration[J]. , 2009, 30(7): 2158 -2162 .
[9] ZHANG Yuan, WAN Zhi-jun, KANG Jian-rong, ZHAO Yang-sheng. Analysis of stage characteristics of sandstone permeability under conditions of temperature and triaxial stress[J]. , 2011, 32(3): 677 -683 .
[10] ZHANG Xue-chan , GONG Xiao-nan , YIN Xu-yuan , ZHAO Yu-bo. Monitoring analysis of retaining structures for Jiangnan foundation pit of Qingchun road river-crossing tunnel in Hangzhou[J]. , 2011, 32(S1): 488 -0494 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd