A study of shear strength characteristics and estimation model of limestone under different weathering degrees

DENG Tao; LIAO Jun; WANG Chenbin; TANG Gang; QIAN Xiaolong; GONG Hongwei

doi:10.16030/j.cnki.issn.1000-3665.202110044

2022 Vol. 49, No. 4

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Article navigation > Hydrogeology & Engineering Geology > 2022 > 49(4): 71-80

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DENG Tao, LIAO Jun, WANG Chenbin, TANG Gang, QIAN Xiaolong, GONG Hongwei. A study of shear strength characteristics and estimation model of limestone under different weathering degrees[J]. Hydrogeology & Engineering Geology, 2022, 49(4): 71-80. doi: 10.16030/j.cnki.issn.1000-3665.202110044

Citation:

DENG Tao, LIAO Jun, WANG Chenbin, TANG Gang, QIAN Xiaolong, GONG Hongwei. A study of shear strength characteristics and estimation model of limestone under different weathering degrees[J]. Hydrogeology & Engineering Geology, 2022, 49(4): 71-80. doi: 10.16030/j.cnki.issn.1000-3665.202110044

A study of shear strength characteristics and estimation model of limestone under different weathering degrees

1.
College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, Sichuan　610059, China
2.
Zigong City Construction Investment Development Group Co. Ltd., Zigong, Sichuan　643000, China

More Information

Corresponding author: LIAO Jun, liaojun@mail.cdut.edu.cn

Received Date: 27 October 2021

Revised Date: 23 December 2021

Publish Date: 25 July 2022

Abstract

Abstract

The shear strength characteristics of common limestone in engineering under different weathering degrees were seldom examined, and there is no mathematical model for rapid evaluation of the shear strength of limestone, which cannot meet the needs of prevention and control of a large number of limestone engineering disasters. In order to explore the influence of weathering degree on the shear strength characteristics of limestone, the fresh limestone samples are selected in the test. The rock samples with different weathering degrees are prepared by indoor weathering simulation test. The indoor rock strength shear test is carried out to explore the variation law of the shear stress-shear displacement curve of limestone and the deterioration law of shear strength and its parameters. The quantitative relationship between the weathering degree and shear strength is revealed by establishing the shear strength estimation model of limestone under weathering degree. The test results show that with the increasing weathering degree, the shear strength and residual shear strength of limestone show a decreasing trend, but the residual shear strength is worse than the shear strength, and the deterioration rate is faster. With the increasing weathering degree, the cohesion c and internal friction angle φ of limestone are getting smaller and smaller, and the deterioration trend is similar. Using the wave velocity ratio to quantify the weathering degree, the shear strength estimation model of limestone under weathering is established. The shear strength characteristics of rock can be quickly evaluated by simply measuring and calculating the wave velocity ratio of rock. The research results can provide a more simple and feasible method for evaluating the shear strength characteristics of limestone engineering.
- limestone /
- weathering degree /
- shear strength /
- estimation model

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References

[1]	ZENG Z X, KONG L W, WANG M, et al. Assessment of engineering behaviour of an intensely weathered swelling mudstone under full range of seasonal variation and the relationships among measured parameters[J]. Canadian Geotechnical Journal,2018,55(12):1837 − 1849. doi: 10.1139/cgj-2017-0582 CrossRef Google Scholar
[2]	LI Z M, CHEN L L, WU F, et al. In situ test study on shear strength properties of weathered silty mudstone[J]. Advanced Materials Research,2010,146/147:10 − 13. doi: 10.4028/www.scientific.net/AMR.146-147.10 CrossRef Google Scholar
[3]	陈棠茵, 朱宝龙. 温度、湿度循环条件下砂岩物理特性试验研究[J]. 水文地质工程地质,2014,41(1):74 − 78. [CHEN Tangyin, ZHU Baolong. Experimental study of physical properties of sandstone under the cycling conditions of temperature and humidity[J]. Hydrogeology & Engineering Geology,2014,41(1):74 − 78. (in Chinese with English abstract) Google Scholar CHEN Tangyin, ZHU Baolong. Experimental study of physical properties of sandstone under the cycling conditions of temperature and humidity[J]. Hydrogeology & Engineering Geology, 2014, 41(1): 74-78. (in Chinese with English abstract) Google Scholar
[4]	吕文韬, 杨龙, 魏云杰, 等. 新疆塔县地区片麻岩冻融劣化机理与规律试验研究[J]. 水文地质工程地质,2019,46(3):95 − 100. [LYU Wentao, YANG Long, WEI Yunjie, et al. Research on mechanism of freezing-thawing deterioration of gneisses in the Taxian area of Xinjiang[J]. Hydrogeology & Engineering Geology,2019,46(3):95 − 100. (in Chinese with English abstract) Google Scholar LYU Wentao, YANG Long, WEI Yunjie, et al. Research on mechanism of freezing-thawing deterioration of gneisses in the Taxian area of Xinjiang[J]. Hydrogeology & Engineering Geology, 2019, 46(3): 95-100. (in Chinese with English abstract) Google Scholar
[5]	冯连君, 储雪蕾, 张启锐, 等. 化学蚀变指数(CIA)及其在新元古代碎屑岩中的应用[J]. 地学前缘,2003,10(4):539 − 544. [FENG Lianjun, CHU Xuelei, ZHANG Qirui, et al. CIA (chemical index of alteration) and its applications in the Neoproterozoic clastic rocks[J]. Earth Science Frontiers,2003,10(4):539 − 544. (in Chinese with English abstract) doi: 10.3321/j.issn:1005-2321.2003.04.019 CrossRef Google Scholar FENG Lianjun, CHU Xuelei, ZHANG Qirui, et al. CIA (chemical index of alteration) and its applications in the Neoproterozoic clastic rocks[J]. Earth Science Frontiers, 2003, 10(4): 539-544. (in Chinese with English abstract) doi: 10.3321/j.issn:1005-2321.2003.04.019 CrossRef Google Scholar
[6]	李日运, 吴林峰. 岩石风化程度特征指标的分析研究[J]. 岩石力学与工程学报,2004,23(22):3830 − 3833. [LI Riyun, WU Linfeng. Research on characteristic indexes of weathering intensity of rocks[J]. Chinese Journal of Rock Mechanics and Engineering,2004,23(22):3830 − 3833. (in Chinese with English abstract) doi: 10.3321/j.issn:1000-6915.2004.22.018 CrossRef Google Scholar LI Riyun, WU Linfeng. Research on characteristic indexes of weathering intensity of rocks[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(22): 3830-3833. (in Chinese with English abstract) doi: 10.3321/j.issn:1000-6915.2004.22.018 CrossRef Google Scholar
[7]	张傲, 方云, 徐敏, 等. 龙门石窟碳酸盐岩体文物风化作用模拟试验研究[J]. 中国岩溶,2012,31(3):227 − 233. [ZHANG Ao, FANG Yun, XU Min, et al. Simulation experiment for weathering of culture relic on carbonate rock Palisades in Longmen grottoes[J]. Carsologica Sinica,2012,31(3):227 − 233. (in Chinese with English abstract) doi: 10.3969/j.issn.1001-4810.2012.03.001 CrossRef Google Scholar ZHANG Ao, FANG Yun, XU Min, et al. Simulation experiment for weathering of culture relic on carbonate rock Palisades in Longmen grottoes[J]. Carsologica Sinica, 2012, 31(3): 227-233. (in Chinese with English abstract) doi: 10.3969/j.issn.1001-4810.2012.03.001 CrossRef Google Scholar
[8]	吴霞, 温世儒, 晏长根, 等. 不同风化程度灰岩的地质雷达波形与频谱特征研究[J]. 西南大学学报(自然科学版),2016,38(6):159 − 164. [WU Xia, WEN Shiru, YAN Changgen, et al. Study on waveform and frequency spectrum property of GPR for limestone with different weathering degree[J]. Journal of Southwest University (Natural Science Edition),2016,38(6):159 − 164. (in Chinese with English abstract) Google Scholar WU Xia, WEN Shiru, YAN Changgen, et al. Study on waveform and frequency spectrum property of GPR for limestone with different weathering degree[J]. Journal of Southwest University (Natural Science Edition), 2016, 38(6): 159-164. (in Chinese with English abstract) Google Scholar
[9]	杨继清, 张修硕, 李靖, 等. 不同湿度环境对岩石风化产生的影响[J]. 云南农业大学学报(自然科学),2018,33(1):147 − 153. [YANG Jiqing, ZHANG Xiushuo, LI Jing, et al. Influence of different humidity environments on the rock weathering[J]. Journal of Yunnan Agricultural University (Natural Science),2018,33(1):147 − 153. (in Chinese with English abstract) Google Scholar YANG Jiqing, ZHANG Xiushuo, LI Jing, et al. Influence of different humidity environments on the rock weathering[J]. Journal of Yunnan Agricultural University (Natural Science), 2018, 33(1): 147-153. (in Chinese with English abstract) Google Scholar
[10]	CHALA E T, RAO K S. Influence of weathering on the engineering behaviour of rocks under triaxial confining conditions[C]//Geotechnical Frontiers 2017. Orlando, Florida. Reston, VA, USA: American Society of Civil Engineers, 2017: 570 − 578. Google Scholar
[11]	CANO M, TOMAS R. Proposal of a new parameter for the weathering characterization of carbonate flysch-like rock masses:The potential degradation index (PDI)[J]. Rock Mechanics and Rock Engineering,2016,49(7):2623 − 2640. doi: 10.1007/s00603-016-0915-2 CrossRef Google Scholar
[12]	冯庆祖, 陈龙, 聂德新. 岩体风化程度量化分带研究[J]. 地质灾害与环境保护,2001,12(2):76 − 79. [FENG Qingzu, CHEN Long, NIE Dexin. Study on quantitative classification rock weathering[J]. Journal of Geological Hazards and Environment Preservation,2001,12(2):76 − 79. (in Chinese with English abstract) doi: 10.3969/j.issn.1006-4362.2001.02.019 CrossRef Google Scholar FENG Qingzu, CHEN Long, NIE Dexin. Study on quantitative classification rock weathering[J]. Journal of Geological Hazards and Environment Preservation, 2001, 12(2): 76-79. (in Chinese with English abstract) doi: 10.3969/j.issn.1006-4362.2001.02.019 CrossRef Google Scholar
[13]	OZBEK A. Investigation of the effects of wetting-drying and freezing-thawing cycles on some physical and mechanical properties of selected ignimbrites[J]. Bulletin of Engineering Geology and the Environment,2014,73(2):595 − 609. doi: 10.1007/s10064-013-0519-y CrossRef Google Scholar
[14]	VLASTELICA G, MISCEVI P, PAVIC N. Testing the shear strength of soft rock at different stages of laboratory simulated weathering[J]. Građevinar,2017,68(12):955 − 965. Google Scholar
[15]	PRODAN M V, MILEUSNIĆ M, ARBANAS S M, et al. Influence of weathering processes on the shear strength of siltstones from a flysch rock mass along the northern Adriatic coast of Croatia[J]. Bulletin of Engineering Geology and the Environment,2017,76(2):695 − 711. doi: 10.1007/s10064-016-0881-7 CrossRef Google Scholar
[16]	GRGIC D, GIRAUD A, AUVRAY C. Impact of chemical weathering on micro/macro-mechanical properties of oolithic iron ore[J]. International Journal of Rock Mechanics and Mining Sciences,2013,64:236 − 245. doi: 10.1016/j.ijrmms.2013.09.005 CrossRef Google Scholar
[17]	FAN H T, SUN S R, LE H L, et al. An experimental and numerical study of diorite-porphyrites with different weathered degree in the direct shear test[J]. Frontiers in Earth Science,2020,7:352. doi: 10.3389/feart.2019.00352 CrossRef Google Scholar
[18]	CERYAN S, TUDES S, CERYAN N. Influence of weathering on the engineering properties of Harsit granitic rocks (NE Turkey)[J]. Bulletin of Engineering Geology and the Environment,2008,67(1):97 − 104. doi: 10.1007/s10064-007-0115-0 CrossRef Google Scholar
[19]	QURESHI M U, TOWHATA I, YAMADA S. Experimental relation between shear strength under low pressure and S-wave velocity of rock subjected to mechanical weathering[J]. Soils and Foundations,2019,59(5):1468 − 1480. doi: 10.1016/j.sandf.2019.06.003 CrossRef Google Scholar
[20]	丁梧秀, 陈建平, 徐桃, 等. 化学溶液侵蚀下灰岩的力学及化学溶解特性研究[J]. 岩土力学,2015,36(7):1825 − 1830. [DING Wuxiu, CHEN Jianping, XU Tao, et al. Mechanical and chemical characteristics of limestone during chemical erosion[J]. Rock and Soil Mechanics,2015,36(7):1825 − 1830. (in Chinese with English abstract) Google Scholar DING Wuxiu, CHEN Jianping, XU Tao, et al. Mechanical and chemical characteristics of limestone during chemical erosion[J]. Rock and Soil Mechanics, 2015, 36(7): 1825-1830. (in Chinese with English abstract) Google Scholar
[21]	丁梧秀, 冯夏庭. 灰岩细观结构的化学损伤效应及化学损伤定量化研究方法探讨[J]. 岩石力学与工程学报,2005,24(8):1283 − 1288. [DING Wuxiu, FENG Xiating. Study on chemical damage effect and quantitative analysis method of meso-structure of limestone[J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(8):1283 − 1288. (in Chinese with English abstract) doi: 10.3321/j.issn:1000-6915.2005.08.002 CrossRef Google Scholar DING Wuxiu, FENG Xiating. Study on chemical damage effect and quantitative analysis method of meso-structure of limestone[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(8): 1283-1288. (in Chinese with English abstract) doi: 10.3321/j.issn:1000-6915.2005.08.002 CrossRef Google Scholar
[22]	廖健, 赵延林, 刘强, 等. 酸化学腐蚀下灰岩剪切强度特性试验研究[J]. 采矿与安全工程学报,2020,37(3):639 − 646. [LIAO Jian, ZHAO Yanlin, LIU Qiang, et al. Experimental study on shear strength characteristics of limestone under acidizing corrosion[J]. Journal of Mining & Safety Engineering,2020,37(3):639 − 646. (in Chinese with English abstract) Google Scholar LIAO Jian, ZHAO Yanlin, LIU Qiang, et al. Experimental study on shear strength characteristics of limestone under acidizing corrosion[J]. Journal of Mining & Safety Engineering, 2020, 37(3): 639-646. (in Chinese with English abstract) Google Scholar
[23]	张后全, 贺永年, 周纪军, 等. 岩石破损过程强度变化规律实测研究[J]. 岩石力学与工程学报, 2010, 29（增刊1）: 3273 − 3279 Google Scholar ZHANG Houquan, HE Yongnian, ZHOU Jijun, et al. Experimental study of strength evolution laws in rock failure process[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29（Sup 1）: 3273 − 3279. （in Chinese with English abstract） Google Scholar
[24]	王亮清, 梁烨, 吴琼, 等. 基于弹性波速比的岩体强度参数估算方法[J]. 煤田地质与勘探,2010,38(6):37 − 42. [WANG Liangqing, LIANG Ye, WU Qiong, et al. Estimation method of rockmass strength parameters based on elastic wave velocity ratio[J]. Coal Geology & Exploration,2010,38(6):37 − 42. (in Chinese with English abstract) doi: 10.3969/j.issn.1001-1986.2010.06.008 CrossRef Google Scholar WANG Liangqing, LIANG Ye, WU Qiong, et al. Estimation method of rockmass strength parameters based on elastic wave velocity ratio[J]. Coal Geology & Exploration, 2010, 38(6): 37-42. (in Chinese with English abstract) doi: 10.3969/j.issn.1001-1986.2010.06.008 CrossRef Google Scholar