Experimental study on quantitative method for crack development characteristics of expansive soils

CAO Xueshan; ZHANG Wei; LI Guowei; WU Jiantao; YUAN Junping

doi:10.11779/CJGE20221071

Volume 45 Issue 12

Turn off MathJax

Article Contents

Abstract

References

Supplements

Chinese Journal of Geotechnical Engineering > 2023 > 45(12): 2556-2564. > DOI: 10.11779/CJGE20221071

CAO Xueshan, ZHANG Wei, LI Guowei, WU Jiantao, YUAN Junping. Experimental study on quantitative method for crack development characteristics of expansive soils[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(12): 2556-2564. DOI: 10.11779/CJGE20221071

Citation:

PDF (2113 KB)

PDF(English) (815KB)

Experimental study on quantitative method for crack development characteristics of expansive soils

CAO Xueshan^{1, 2,},
ZHANG Wei³,
LI Guowei^{1, 2},
WU Jiantao¹,
YUAN Junping^{1, 2, ,}

1.
College of Civil and Transportation Engineering, Hohai University, Nanjing 210024, China
2.
Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210024, China
3.
Anhui Transport Consulting & Design Institute Co., Ltd., Hefei 230000, China

More Information

Received Date: August 28, 2022
Available Online: March 13, 2023

Graphical Abstract

Abstract

Abstract

Cracks are an important influencing factor that leads to strength decay and permeability increase of expansive soils. A quantitative method for cracks positioned by closed curve is proposed based on the characteristics of crack development in expansive soils, and then the influences of the cracks on the strength and permeability of expansive soils are further investigated. The research results show that the method significantly reduces the relative error of the width of cracks, and the linear crack ratio avoids the processing problem of the influences of outer boundary shrinkage of samples on the crack development characteristics. Accordingly it improves the reasonability of the measured values of cracks. The evolution characteristics of cracks are enriched according to the variation of the linear crack ratio of different width grades. Further, a linear quantitative relationship among cracks, strength and permeability is revealed, and then the measured values of cracks can be used to replace the drying-wetting cycle times, which solves the problem that the drying-wetting cycle times are difficult to be quantified in practical engineering. Therefore, the quantitative crack parameters established by the closed-curve positioning method are more advantageous to the evaluation of the behaviors of expansive soils and the engineering application of crack researches than those by the area method.
- expansive soil,
- crack,
- quantitative method,
- strength,
- permeability,
- closed-curve positioning

FullText(HTML)

References (15)

References

[1]	曹雪山, 额力素, 赖喜阳, 等. 崩解泥化过程中泥岩强度衰减因素研究[J]. 岩土工程学报, 2019, 41(10): 1936-1942. doi: 10.11779/CJGE201910019 CAO Xueshan, E Lisu, LAI Xiyang, et al. Factors for strength attenuation of mudstone during slaking and disintegration [J]. Chinese Journal of Geotechnical Engineering, 2019, 41 (10): 1936-1942. (in Chinese) doi: 10.11779/CJGE201910019
[2]	殷宗泽, 韦杰, 袁俊平, 等. 膨胀土边坡的失稳机理及其加固[J]. 水利学报, 2010, 41(1): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB201001002.htm YIN Zongze, WEI Jie, YUAN Junping, et al. Mechanism of slope slide of expansive soil and reinforcement for the slope[J]. Journal of Hydraulic Engineering, 2010, 41(1): 1-6. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SLXB201001002.htm
[3]	殷宗泽, 袁俊平, 韦杰, 等. 论裂隙对膨胀土边坡稳定的影响[J]. 岩土工程学报, 2012, 34(12): 2155-2161. http://www.cgejournal.com/cn/article/id/14958 YIN Zongze, YUAN Junping, WEI Jie, et al. Influences of fissures on slope stability of expansive soil[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(12): 2155-2161. (in Chinese) http://www.cgejournal.com/cn/article/id/14958
[4]	袁俊平, 殷宗泽. 膨胀土裂隙的量化指标与强度性质研究[J]. 水利学报, 2004, 35(6): 108-113. doi: 10.3321/j.issn:0559-9350.2004.06.019 YUAN Junping, YIN Zongze. Quantitative index of fissure and strength characteristics of fissured expansive soils[J]. Journal of Hydraulic Engineering, 2004, 35(6): 108-113. (in Chinese) doi: 10.3321/j.issn:0559-9350.2004.06.019
[5]	骆赵刚, 汪时机, 杨振北. 膨胀土湿干胀缩裂隙演化及其定量分析[J]. 岩土力学, 2020, 41(7): 2313-2323. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202007018.htm LUO Zhaogang, WANG Shiji, YANG Zhenbei. Quantitative analysis of fracture evolution of expansive soils under wetting-drying cycles[J]. Rock and Soil Mechanics, 2020, 41(7): 2313-2323. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202007018.htm
[6]	汪为巍, 黎伟, 易远. 南阳膨胀土裂隙发育规律研究[J]. 地下空间与工程学报, 2015, 11(6): 1437-1443. https://www.cnki.com.cn/Article/CJFDTOTAL-BASE201506011.htm WANG Weiwei, LI Wei, YI Yuan. Study on the cracking law of Nanyang expansive soil[J]. Chinese Journal of Underground Space and Engineering, 2015, 11(6): 1437-1443. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-BASE201506011.htm
[7]	杨济铭, 张红日, 陈林, 等. 基于数字图像相关技术的膨胀土边坡裂隙形态演化规律分析[J]. 中南大学学报(自然科学版), 2022, 53(1): 225-238. https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD202201025.htm YANG Jiming, ZHANG Hongri, CHEN Lin, et al. Analysis of crack morphology evolution law of expansive soil slope based on digital image correlation technology[J]. Journal of Central South University (Science and Technology), 2022, 53(1): 225-238. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD202201025.htm
[8]	唐朝生, 崔玉军, TANG Anh-minh, 等. 膨胀土收缩开裂过程及其温度效应[J]. 岩土工程学报, 2012, 34(12): 2181-2187. http://www.cgejournal.com/cn/article/id/14936 TANG Chaosheng, CUI Yujun, TANG A M, et al. Shrinkage and desiccation cracking process of expansive soil and its temperature-dependent behaviour[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(12): 2181-2187. (in Chinese) http://www.cgejournal.com/cn/article/id/14936
[9]	刘观仕, 陈永贵, 曾宪云, 等. 环境湿度与温度对压实膨胀土裂隙发育影响试验研究[J]. 岩土工程学报, 2020, 42(2): 260-268. doi: 10.11779/CJGE202002007 LIU Guanshi, CHEN Yonggui, ZENG Xianyun, et al. Effects of ambient air humidity and temperature on crack development of compacted expansive soils[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(2): 260-268. (in Chinese) doi: 10.11779/CJGE202002007
[10]	建筑基坑工程监测技术标准: GB 50497—2019[S]. 北京: 中国计划出版社, 2019. Technical Code for Monitoring of Building Excavation Engineering: GB 50497—2019[S]. Beijing: China Planning Press, 2019. (in Chinese)
[11]	黎伟, 刘观仕, 姚婷. 膨胀土裂隙图像处理及特征提取方法的改进[J]. 岩土力学, 2014, 35(12): 3619-3626. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201412037.htm LI Wei, LIU Guanshi, YAO Ting. Improvement of methods for crack image processing and crack feature extraction of expansive soil[J]. Rock and Soil Mechanics, 2014, 35(12): 3619-3626. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201412037.htm
[12]	刘华强, 殷宗泽. 裂缝对膨胀土抗剪强度指标影响的试验研究[J]. 岩土力学, 2010, 31(3): 727-731. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201003011.htm LIU Huaqiang, YIN Zongze. Test study of influence of crack evolution on strength parameters of expansive soil[J]. Rock and Soil Mechanics, 2010, 31(3): 727-731. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201003011.htm
[13]	土工试验方法标准: GB/T 50123—2019[S]. 北京: 中国计划出版社, 2019. Standard for Geotechnical Testing Method[S]: GB/T 50123—2019[S]. Beijing: China Planning Press, 2019. (in Chinese)
[14]	刘俊东, 唐朝生, 曾浩, 等. 干湿循环条件下黏性土干缩裂隙演化特征[J]. 岩土力学, 2021, 42(10): 2763-2772. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202110016.htm LIU Jundong, TANG Chaosheng, ZENG Hao, et al. Evolution of desiccation cracking behavior of clays under drying-wetting cycles[J]. Rock and Soil Mechanics, 2021, 42(10): 2763-2772. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX202110016.htm
[15]	袁俊平, 张锋, 王启贵, 等. 裂隙对压实膨胀土渗气性影响试验[J]. 水利水电科技进展, 2014, 34(3): 34-38. https://www.cnki.com.cn/Article/CJFDTOTAL-SLSD201403009.htm YUAN Junping, ZHANG Feng, WANG Qigui, et al. The influences of fissure on gas permeability of the compacted expansive soil[J]. Advances in Science and Technology of Water Resources, 2014, 34(3): 34-38. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SLSD201403009.htm

Supplements (2)

Supplements
Other Related Supplements
- English PDF
  20231215-G22-1071英文发布稿 Download(815KB)
- PDF format
  15-202312-G22-1071一文审稿意见与作者答复 Download(1540KB)

Cited By

Cited by

Periodical cited type(0)

Other cited types(1)

Get Citation

PDF

XML

PDF(English)(815KB)()

Article views (529) PDF downloads (165) Cited by(1)

Experimental study on quantitative method for crack development characteristics of expansive soils

Abstract

References

Supplements

Other Related Supplements

English PDF

PDF format

Cited by

Periodical cited type(0)

Other cited types(1)

Catalog

Related

Export File

Citation

Format

Content