吉林大学学报(工学版) ›› 2023, Vol. 53 ›› Issue (10): 2856-2868.doi: 10.13229/j.cnki.jdxbgxb.20211325

• 交通运输工程·土木工程 • 上一篇    下一篇

土遗址裂隙注浆浆⁃土界面粘结性能干旱环境耐久性对比

崔凯1(),许鹏飞1,黄井镜2,于翔鹏1,汪小海1   

  1. 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,兰州 730050
    2.敦煌研究院 国家古代壁画与土遗址保护工程技术研究中心,甘肃 敦煌 736200
  • 收稿日期:2021-12-03 出版日期:2023-10-01 发布日期:2023-12-13
  • 作者简介:崔凯(1980-),男,教授,博士. 研究方向:岩土劣化.E-mail:cuik09@lut.edu.cn
  • 基金资助:
    国家自然科学基金项目(52068050);教育部长江学者创新团队支持计划项目(2017IRT17-51)

Comparison of bond performance between grouting slurry and soil interface in soil sites and durability in arid environment

Kai CUI1(),Peng-fei XU1,Jing-jing HUANG2,Xiang-peng YU1,Xiao-hai WANG1   

  1. 1.Western Center of Disaster Mitigation in Civil Engineering,Ministry of Education,Lanzhou University of Technology,Lanzhou 730050,China
    2.National Technological Research Center for Conservation of Ancient Wall Paintings and Earthen Heritage Sites,Dunhuang Academy,Dunhuang 736200,China
  • Received:2021-12-03 Online:2023-10-01 Published:2023-12-13

摘要:

针对协同作用下浆-土界面干旱环境耐久性问题,采用原状遗址土进行4种有无桩-浆协同作用模式下的室内模拟裂隙注浆,对不同模式下所形成的浆-土界面进行干湿、冻融、耐盐和耐碱4种典型干旱环境耐久性试验,在不同龄期对试样进行波速测量和界面直剪试验,通过对比分析其波速、界面力学参数、界面破坏模式以及剪切应力-位移关系来揭示浆-土界面粘结性能在干旱环境下的劣化特征与规律。研究表明:整个龄期界面的破坏形式以平直界面的粘结破坏和起伏界面的粘结与切齿联合破坏为主;在任意一种耐久性条件下,4种注浆模式下的浆土-界面的波速、表面残留土体厚度、峰值剪应力、界面抗剪强度参数均随龄期增加呈下降趋势,且大小关系均表现为起伏有桩模式>起伏无桩模式>平直有桩模式>平直无桩模式;以上规律均表明桩-浆协同下土遗址裂隙浆-土界面粘结性能的干旱环境耐久性能明显优于单独注浆模式。

关键词: 土遗址, 耐久性, 浆?土界面, 桩?浆协同, 粘结性能

Abstract:

Aiming at the durability of the slurry-soil interface in arid environment under the synergistic effect has become an urgent need for its promotion and application in the field of crack repairs in earthen ruins. Important support sought. The undisturbed site soil was used to carry out indoor simulated fissure grouting with or without pile-mortar synergistic mode, and conducts dry-wet, freeze-thaw, salt-tolerant and alkali-tolerant 4 types of the grout-soil interface formed in different modes for durability test in arid environment. Wave speed measurement and interface direct shear test are carried out on samples at different ages, and the slurry-soil interface bonding is revealed by comparing and analyzing its wave speed, interface mechanical parameters, interface failure mode and shear stress-displacement relationship. The characteristics and laws of performance degradation in arid environment. Results show that the failure form of the interface during the entire age is mainly the bonding failure of the flat interface and the combined failure of the bonding and incisor failure of the undulating interface; under any durability condition, the grout-soil under the four grouting modes (the interface wave speed, surface residual soil thickness, peak shear stress, and interface shear strength parameters) all show a downward trend with the increase of age, and the size relationship is all expressed as grouting with lime piles and grooves>grouting with grooves> grouting with lime piles>grouting alone; the above rules all show that the durability of the dry environment durability of the pile-mortar synergistic bond between the grout-soil interface of the soil ruins is significantly better than the single grouting mode.

Key words: earthen ruins, durability, slurry-soil interface, the pile-mortar synergistic, bonding performance

中图分类号: 

  • TU521

表1

遗址土基本物理性质"

物理量数值物理量数值
天然含水率1.05%最大干密度1.89 (g·cm-3
天然密度1.52 (g·cm-3孔隙率44%
干密度1.50 (g·cm-3液限23.8%
相对密度2.69塑限16%
最佳含水率18%

图1

试样制备原理及过程"

图2

4种半浆半土试样波速随不同耐久性环境循环次数曲线"

表2

不同耐久性环境下4种试样浆-土界面粘聚力和内摩擦角随循环次数变化情况"

耐久性环境循环次数/次粘聚力c/kPa内摩擦角/(°)
ZNZYJNJYZNZYJNJY
干湿067.973.883.686.845.246.048.150.0
372.882.9103.2103.143.043.045.347.7
665.675.194.399.538.340.441.443.2
962.667.976.091.937.238.740.042.9
1256.859.066.072.536.037.239.341.3
1551.852.956.057.535.435.739.040.7
冻融068.374.285.386.745.046.648.450.1
366.370.179.082.042.343.543.845.0
660.166.172.178.240.042.343.244.1
953.260.066.971.138.740.442.343.5
1233.142.045.056.032.235.036.938.0
1531.633.040.042.031.833.835.435.4
盐环境069.174.885.287.345.046.248.650.2
158.267.970.078.940.741.342.944.4
252.060.162.070.938.339.742.043.2
339.451.054.965.137.238.341.041.8
430.138.041.148.03335.337.639.0
527.132.035.942.029.732.233.434.2
碱环境068.174.282.887.645.146.048.250.3
170.581.683.889.143.545.345.948.2
249.356.270.079.040.442.643.546.4
341.251.165.072.936.939.741.345.1
434.642.051.960.035.837.939.741.0
531.134.041.013.032.635.035.035.8

图3

400 kPa下4种试样浆-土界面在4种耐久性环境循环结束后界面破坏形态与剪应力-位移曲线"

图4

剪应力-位移泛化曲线"

图5

400 kPa耐久性环境下界面剪应力-位移曲线试验值与拟合值"

表3

400 kPa时不同耐久性环境下4种试样浆-土界面剪应力-位移曲线拟合参数"

耐久性环境界面类型循环次数/次τp/kPasp/mm峰值前峰值后峰值前曲线相关系数峰值后曲线相关系数
abAB
干湿ZN15333.85.051.497.10-4.061.300.9950.998
ZY343.03.930.877.28-3.540.720.9890.990
JN400.04.681.265.03-0.750.840.9850.973
JY415.35.610.947.65-3.781.100.9960.997
冻融ZN15273.82.990.448.81-2.990.560.9830.962
ZY301.83.370.419.04-7.580.820.9860.986
JN323.04.300.938.74-8.391.030.9920.986
JY324.54.110.5310.18-12.301.190.9970.982
盐环境ZN5256.82.991.516.55-6.470.880.9890.998
ZY282.24.110.8610.58-4.060.740.9980.996
JN315.34.110.2311.33-3.570.620.9930.995
JY309.15.051.2510.10-3.640.560.9970.993
碱环境ZN5279.14.111.776.83-4.890.840.9910.991
ZY310.74.301.387.92-3.300.640.9970.996
JN327.65.050.7311.03-2.630.410.9960.995
JY332.24.300.599.53-2.820.210.9870.986

图6

不同耐久性环境下4种界面剪切有效系数随循环周期变化情况"

1 崔凯,冯飞,谌文武,等.生石灰为掺料的土遗址裂隙注浆浆液结石体力学兼容性研究[J].岩土力学,2019,40(12):1-10.
Cui Kai, Feng Fei, Chen Wen-wu, et al.Researches on the fissure of grouting slurry mixed with quick lime and the optimization of grouting technology in earthen sites[J]. Rock and Soil Mechanics,2019,40(12):1-10.
2 Cui Kai, Feng Fei, Chen Wen-wu, et al. Slurry and technology optimization for grouting fissures in earthen sites with quicklime[J]. Advances in Materials Science and Engineering, 2019(4): 1-11.
3 崔凯,汪小海,谌文武,等.土遗址裂隙加固桩–浆协同效果与机制研究[J].工程科学与技术,2021,53(2):66-74.
Cui Kai, Wang Xiao-hai, Chen Wen-wu,et al. Research on the pile-mouth synergistic effect and mechanism of crack reinforcement in earth sites[J]. Engineering Science and Technology, 2021, 53(2): 66-74.
4 崔凯,于翔鹏,裴强强,等.注浆模式对土遗址裂隙修复浆-土界面粘结性能影响研究[J].岩土力学,2021,42(6):1501-1511.
Cui Kai, Yu Xiang-peng, Pei Qiang-qiang,et al.Study on the influence of grouting mode on the bond performance of grout-soil interface in the repair of cracks in earthen ruins[J]. Rock and Soil Mechanics, 2021, 42(6): 1501-1511.
5 孙满利,李最雄,王旭东,等.干旱区土遗址病害的分类研究[J].工程地质学报,2007,15(6):772-778.
Sun Man-li, Li Zui-xiong, Wang Xu-dong,et al. Classification of soil relic diseases in arid area[J]. Journal of Engineering Geology, 2007, 15(6): 772-778.
6 毛维佳.夯土性能及土遗址支顶加固效果检测研究[D].西安:西北大学文化遗产学院,2019.
Mao Wei-jia.Research on the performance of rammed earth and the reinforcement effect of earthen ruins[D]. Xi'an:School of Cultural Heritage, Northwest University, 2019.
7 孙兆辉,卞汉兵,鹿翔宇,等.盐渍化冻土-混凝土衬砌接触面直剪试验研究[J].冰川冻土,2018,40(3):556-562.
Sun Zhao-hui, Bian Han-bing, Lu Xiang-yu,et al.Direct shear tests of interface between salinized frozen soil and concrete lining[J]. Journal of Glaciology and Geocryology, 2018, 40(3): 556-562.
8 Biggar K W, Sego D C. The strength and deformation behaviour of model adfreeze and grouted piles in saline frozen soils[J]. Canadian Geotechnical Journal, 2011, 30(2):319-337.
9 Wang Tian-liang, Wang Hai-hang, Hu Tian-fei, et al. Experimental study on the mechanical properties of soil-structure interface under frozen conditions using an improved roughness algorithm[J]. Cold Regions Science and Technology, 2019, 158: 62-68.
10 Bondarenko G I, SadovskII A V. Strength and deformability of frozen soil in contact with rock[J]. Soil Mechanics and Foundation Engineering, 1975, 12(3): 174-178.
11 何鹏飞,马巍,穆彦虎,等.冻土-混凝土界面冻结强度特征与形成机理研究[J].农业工程学报,2018,34(23):127-133.
He Peng-fei, Ma Wei, Mu Yan-hu,et al. Study on freezing strength characteristics and formation mechanism of frozen soil-concrete interface[J].Transactions of the Chinese Society of Agricultural Engineering,2018,34(23):127-133.
12 何鹏飞,马巍,穆彦虎,等.冻融循环对冻土-混凝土界面冻结强度影响的试验研究[J]. 岩土工程学报,2020,42(2):1-10.
He Peng-fei, Ma Wei, Mu Yan-hu,et al. Experiment study on effects of freeze-thaw cycles on adfreezing strength at frozen soil-concrete interface[J]. Chinese Journal of Geotechnical Engineering, 2020,42(2):1-10.
13 梁越,储昊,曾超.干湿循环作用下钢-土界面剪切特性试验[J].水利水电科技进展,2016,36(1):49-52, 81.
Liang Yue, Chu Hao, Zeng Chao. Experimental study on shear characteristics at steel-soil interface with drying-wetting cycles[J]. Advances in Science and Technology of Water Resources,2016,36(1):49-52, 81.
14 沈明荣,张清照.规则齿型结构面剪切特性的模型试验研究[J].岩石力学与工程学报,2010,29(4):713-719.
Shen Ming-rong, Zhang Qing-zhao.Experimental study of shear deformation characteristics of rock mass discontinuities[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(4):713-719.
15 张景科,谌文武,李最雄,等.土遗址锚固用PS-(C+F)浆液性能与结石体耐久性室内试验[J].岩土工程学报,2015,37(10):1802-1809.
Zhang Jing-ke, Chen Wen-wu, Li Zui-xiong, et al. Indoor test of PS-(C+F) grout performance and stone body durability for anchoring earthen sites[J]. Chinese Journal of Geotechnical Engineering,2015,37(10):1802-1809.
16 Kondner R L. Hyperbolic stress-strain response: cohesive soils[J]. Journal of the Soil Mechanics and Foundations Division, 1963, 89(1):115-144.
17 王军,林旭,符洪涛.砂土-格栅筋土界面特性的本构模型研究[J].岩土力学,2014,35():75-84.
Wang Jun, Lin Xu, Fu Hong-tao.Study of constitutive model of sand-geogrid interface behavior in geogrid geotextile reinforced soil[J]. Rock and Soil Mechanics, 2014, 35(Sup.2): 75-84.
18 王永洪,张明义,刘俊伟,等.接触面粗糙度对黏性土-混凝土界面剪切特性影响研究[J].工业建筑,2017,47(10): 93-97.
Wang Yong-hong, Zhang Ming-yi, Liu Jun-wei, et al. Effect of interface roughness on interfacial shear properties of clayey soilconcrete[J]. Industrial Construction,2017,47(10): 93-97.
19 龚辉,赵春风,陶帼雄,等.应力历史对黏土-混凝土界面剪切特性的影响研究[J].岩石力学与工程学报,2011,30(8):1712-1719.
Gong Hui, Zhao Chun-feng, Tao Guo-xiong. Research on effect of stress history on shear behavior of interface between clay and concrete[J]. Chinese Journal of Rock Mechanics and Engineering,2011,30(8): 1712-1719.
20 Joseph E Dove, Bradley Jarrett J. Behavior of dilative sand interfaces in a geotribology framework[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2002, 128(1): 25-37.
21 朱彦鹏,王秀丽,周勇.湿陷性黄土地区倾斜建筑物的膨胀法纠偏加固理论分析与实践[J].岩石力学与工程学报,2005,24(15):2786-2794.
Zhu Yan-peng, Wang Xiu-li, Zhou Yong. Reinforcement using expansive method for incline building on collapsible loess[J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(15): 2786-2794.
22 Chemeda Y C, Deneele D, Ouvrard G. Short-term lime solution-kaolinite interfacial chemistry and its effect on long-term pozzolanic activity[J]. Applied Clay Science, 2018, 161: 419-426.
23 Marta Di Sante, Evelina Fratalocchi, Francesco Mazzieri, et al. Time of reactions in a lime treated clayey soil and influence of curing conditions on its microstructure and behaviour[J]. Applied Clay Science, 2014, 99: 100-109.
24 严耿升.干旱区土质文物劣化机理及材料耐久性研究[D]. 兰州:兰州大学地质科学与矿产资源学院,2011.
Yan Geng-sheng. Research on degradation mechanism and material durability of soil cultural relics in arid area [D]. Lanzhou: School of Earth Science, Lanzhou University, 2011.
25 Sadisun I A, Shimada H, Ichinose M, et al. Study on the physical disintegration characteristics of Subang claystone subjected to a modified slaking index test[J]. Geotechnical & Geological Engineering, 2005, 23(3): 199-218.
26 齐吉琳,张建明,朱元林.冻融作用对土结构性影响的土力学意义[J].岩石力学与工程学报,2003():2690-2694.
Qi Ji-lin, Zhang Jian-ming, Zhu Yuan-lin. The significance of soil mechanics of the effects of freezing and thawing on soil structure[J]. Chinese Journal of Rock Mechanics and Engineering,2003(Sup.2):2690-2694.
[1] 温昌凯,谢斌,宋正河,韩建刚,杨倩雯. 拖拉机耐久性加速结构试验设计方法[J]. 吉林大学学报(工学版), 2022, 52(3): 703-715.
[2] 汤东,韩宇彬,华伦,潘金冲,刘胜. 润滑油灰分对直喷汽油机颗粒捕集器性能影响[J]. 吉林大学学报(工学版), 2022, 52(11): 2501-2507.
[3] 程东辉,范永萱,王彦松. RC类活性粉末混凝土钢筋粘结-滑移本构模型[J]. 吉林大学学报(工学版), 2021, 51(4): 1317-1330.
[4] 袁杰,陈歆,何虹霖,杨博,朱小骏. 微生物矿化作用下混凝土裂缝修复与性能补偿[J]. 吉林大学学报(工学版), 2020, 50(2): 641-647.
[5] 王哲,谢怡,臧鹏飞,王耀. 基于极小值原理的燃料电池客车能量管理策略[J]. 吉林大学学报(工学版), 2020, 50(1): 36-43.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!