Abstract
Rock masses in southwest China are dominated by alternating layers of sandstone and mudstone. When exposed to natural conditions, mudstone is vulnerable to disintegration, causing the overlying sandstone to be extremely likely to collapse under the action of a load or other conditions. An effective and innovative experimental method to characterize weathering processes would contribute to collapse prevention. In this study, a customized test unit, including a model test container, a lever-loading device and a thermostat-controlled heating plate, was applied to explore the mechanism of crack development in mudstone over multiple dry-wet cycles. The crack width, vertical displacement and wetted area were measured to analyse the slaking mechanism acting during these cycles. The results show that tiny cracks appeared on the surface of the sample after heating and that the vertical displacement increased in the upward direction because of swelling of mudstone. The crack width expanded with increasing water exposure, but after the water infiltrated the surface of the sample, the crack width decreased. The external surface of the sample was gradually infiltrated in the second dry-wet cycle, and the infiltration area increased continually. The infiltrating speed grew progressively faster with each cycle, and the number and size of internal cracks monotonically increased. The sample fractured as a result of crack extension. These results have theoretical significance regarding the ground collapse of alternating layers of sandstone and mudstone.
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References
Al-homoud AS, Kuoury H, Al-Omari YA (1996) Mineralogical and engineering properties of problematic expansive clayey beds causing landslides. Bull Eng Geol Environ 54:13–31. doi:10.1007/BF02600651
Arnould M (2006) Discontinuity networks in mudstones: a geological approach—implic ations for radioactive wastes isolation in deep geological formations in Belgium, France, Switzerland. Bull Eng Geol Environ 65(4):413–422. doi:10.1007/s10064-006-0060-3
Ashby MF, Raj R, Gifkins C (1970) Diffusion controlled sliding at a serrated grain boundary. Scr Metall 4(9):737–741. doi:10.1016/0036-9748(70)90216-4
Bozzano F, Gaeta M, Marcoccia S (2006) Weathering of valle ricca stiff and jointed clay. Eng Geol 84(3–4):161–182. doi:10.1016/j.enggeo.2005.11.010
Cantón Y, Solé-Benet A, Queralt I, Pini R (2001) Weathering of a gypsum-calcareous mudstone under semi-arid environment at Tabernas, SE Spain: laboratory and field based experimental approaches. Catena 44(2):111–132. doi:10.1016/S0341-8162(00)00153-3
Doostmohammadi R, Moosavi M, Mutschler TH, Osan C (2009) Influence of cyclic wetting and drying on swelling behavior of mudstone in south west of Iran. Environ Geol 58:999–1009. doi:10.1007/s00254-008-1579-3
Eeckhout EMV (1976) The mechanisms of strength reduction due to moisture in coal mine shales. Int J Rock Mech min Sci Geomech Abstr 13(2):61–67. doi:10.1016/0148-9062(76)90705-1
Einstein HH (1996) Tunnelling in difficult ground—swelling behaviour and identification of swelling rocks. Rock Mech Rock Eng 29(3):113–124. doi:10.1007/BF01032649
Erguler ZA, Shakoor A (2009) Relative contribution of various climatic processes in disintegration of clay-bearing rocks. Eng Geol 108(1–2):36–42. doi:10.1016/j.enggeo.2009.06.002
Erguler ZA, Ulusay R (2009) Water-induced variations in mechanical properties of clay-bearing rocks. Int J Rock Mech min 46(2):355–370. doi:10.1016/j.ijrmms.2008.07.002
Gamble JC (1971) Durability-plasticity classification of shales and other argillaceous rock. Dissertation, University of Illinois
Goodman RE (1989) Introduction to rock mechanics, 2nd edn. Wiley, New York
Gautam TP, Shakoor A (2013) Slaking behavior of clay-bearing rocks during a one-year exposure to natural climatic conditions. Eng Geol 166:17–25. doi:10.1016/j.enggeo.2013.08.003
Guo YC, Xie Q, Wen JQ (2012) Effect of the alternation of heat and water on the slaking phenomenon of redbeds. Hydrogeol Eng Geol 39(5):69–73 (in Chinese)
Higuchi K, Chigira M, Lee D-H, Wu J-H (2014) Rapid weathering and erosion of mudstone induced by saltwater migration near a slope surface. J Hydrol Eng 20(6):C6014004. doi:10.1061/(ASCE)HE.1943-5584.0001105
Imumorin P, Azam S (2011) Effect of precipitation on the geological development of badlands in arid regions. Bull Eng Geol Environ 70(2):223–229. doi:10.1007/s 10064 - 010-0300-4
Jiang Q, Cui J, Feng XT, Jiang Y (2014) Application of computerized tomographic scanning to the study of water-induced weakening of mudstone. Bull Eng Geol Environ 73(4):1293–1301. doi:10.1007/s10064-014-0597-5
Kang HP (1994) Rock damage caused by water. Hydrogeol Eng Geol 3:39–41 (in Chinese)
Lee D-H, Chen PY, Wu J-H et al (2013) Method of mitigating the surface erosion of a high-gradient mudstone slope in southwest Taiwan. Bull Eng Geol Environ 72(3):533–545. doi:10.1007/s10064-013-0518-z
Lashkaripour GR (2002) Predicting mechanical properties of mudrock from index parameters. Bull Eng Geol Environ 61(1):73–77. doi:10.1007/s10064100116
Lashkaripour GR, Boomeri M (2002) The role of mineralogy on durability of weak rocks. J Appl Sci 2(6):698–701. doi:10.3923/jas.2002.698.701
Li WT (2004) The theory analysis and application of thermal stress. China Electric Power Press, Beijing (in Chinese)
Lu Y, Wang L, Sun X, Wang J (2016) Experimental study of the influence of water and temperature on the mechanical behavior of mudstone and sandstone. Bull Eng Geol Environ:1–16. doi:10.1007/s10064-016-0851-0
Molinda GM, Oyler DC, Gurgenli H (2006) Identifying moisture sensitive roof rocks in coal mines. Proceedings of 25th International Conference on Ground Control in Mining. West Virginia University, Morgantown, pp 57–64
Ojo O, Brook N (1990) The effect of moisture on some mechanical properties of rock. Min Sci Technol 10(2):145–156. doi:10.1016/0167-9031(90)90158-O
Phienwej N (1987) Ground response and support performance in a sheared shale, Stillwater Tunnel. Dissertation, University of Illinois
Poulsen BA, Shen B, Williams DJ, Huddlestone-Holmes C, Erarslan N, Qin J (2014) Strength reduction on saturation of coal and coal measures rocks with implications for coal pillar strength. Int J Rock Mech min 71:41–52. doi:10.1016/j.ijrmms.2014.06.012
Pejon OJ, Zuquette LV (2002) Analysis of cyclic swelling of mudrocks. Eng Geol 67(1–2):97–108. doi:10.1016/S0013-7952(02)00147-3
Qi J, Sui W, Liu Y, Zhang D (2015) Slaking process and mechanisms under static wetting and drying cycles slaking tests in a red strata mudstone. Geotech Geol Eng 33(4):959–972. doi:10.1007/s10706-015-9878-4
Silva MRD, Schroeder C, Verbrugge J-C (2008) Unsaturated rock mechanics applied to a low-porosity shale. Eng Geol 97(1–2):42–52. doi:10.1016/j. enggeo. 2007. 12. 003
Seedsman RW (1993) Characterizing clay shales. In: Hudson JA (ed) comprehensive rock engineering, vol. 3. Pergamon Press, Oxford, pp 151-164
Tang SB, Tang CA, Zhu WC et al (2006) Numerical investigation on rock failures process induced by thermal stress. Chin J Rock Mech Eng 25(10):2071–2078 (in Chinese)
Wu YQ, Zhang ZY (1995) An introduction to rock mass hydraulics. Southwest jiaotong university press, Chengdu (in Chinese)
Yoshida N, Nishi M, Kitamura M, Adachi T (1997) Analysis of mudstone deterioration and its effect on tunnel performance. Int J rock Mech min Sci 34(3-4): 353. e1–353. e19. doi: 10.1016/S1365-1609(97)00289-X
Yang JL, Wang LG, Li XL, Zhao G (2014) Research on micro-fracture mechanism of mudstone after wet-dry cycles. Chin J Rock Mech Eng 33(A02):3606–3612. (in Chinese). doi:10.13722/j.cnki.jrme.2014.s2.027
Yang ZC, Zhang JY, Zhou DP (2006) Study on fast weathering characteristics of red bed mudstone slope. Chin J Rock Mech Eng 25(2):275–283 (in Chinese)
Zhang H, Adoko AC, Meng Z, Wang H, Jiao Y (2017) Mechanism of the mudstone tunnel failures induced by expansive clay minerals. Geotech Geol Eng 35(1):263–275. doi:10.1007/s10706-016-0102-y
Zhang SX (2008) Research on relationship between substantial composing and mechanical parameters of mudstone in Chongqing. Dissertation, Chongqing Jiaotong University (in Chinese)
Zhang D, Chen A, Wang X, Liu G (2015) Quantitative determination of the effect of temperature on mudstone decay during wet-dry cycles: a case study of ‘purple mudstone’ from south-western china. Geomorphology 246:1–6. doi:10.1016/j.geomorph.2015.06.011
Zhang D, Chen A, Wang X, Yan B, Shi L, Liu G (2016) A quantitative determination of the effect of moisture on purple mudstone decay in southwestern China. Catena 139:28–31. doi:10.1016/j.catena.2015.12.003
Zhu ZD, Hu D (2000) The effect of intestitial water pressure on rock mass strength. Rock Soil Mech 21(1):64–67 (in Chinese)
Acknowledgements
The authors gratefully acknowledge the financial support from the Chongqing Research Program of Basic Research and Frontier Technology (No. cstc2015jcyjBX0073) and the science and technology project of Land Resources and Real Estate Management Bureau of Chongqing Government (No. CQGT-KJ-2014052).
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Hu, M., Liu, Y., Ren, J. et al. Laboratory test on crack development in mudstone under the action of dry-wet cycles. Bull Eng Geol Environ 78, 543–556 (2019). https://doi.org/10.1007/s10064-017-1080-x
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DOI: https://doi.org/10.1007/s10064-017-1080-x