Influencing Factors of Anti-Erosion Performance of Cement Improved Loess

Abstract

Abstract: To analyze the anti-erosion performance and influencing factors of cement improved loess (CIL), the influences of the compaction method, cement content, compaction coefficient, erosion times on the anti-erosion performance of CIL were studied. Furthermore, the influence of erosion on the strength deterioration of CIL was studied. The results show that compared with the quasi-static compaction method (QSCM), the anti-erosion performance of specimen compacted using the vertical vibration compaction method (VVTM) is better, and the relative erosion mass is reduced by at least 10%. When the cement content increases 1% (mass fraction) and the compaction coefficient increases 0.01, the anti-erosion performance increases 16% and 6.2%, respectively. The erosion times has a significant effect on the quality loss of CIL, and the cumulative erosion mass increases linearly with the increase of erosion times. The compressive strength of CIL decreases significantly due to the erosion, and the average deterioration degree of specimens compacted using VVTM is 79.5%, and that of specimens compacted using QSCM is 73.7%.

Key words: railway engineering, cement improved loess, anti-erosion performance, compaction method, cement content, compaction coefficient, erosion times

CLC Number:

TU411

QI Xiaoqiang, YUAN Kejia, CAI Luyao, LIU Haipeng, DONG Xin. Influencing Factors of Anti-Erosion Performance of Cement Improved Loess[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(7): 2418-2427.

References

[1] 安春英.水泥稳定碎石基层混合料抗冲刷性影响因素分析[J].中外公路,2012,32(1):261-264.
AN C Y. Analysis on influencing factors of anti-erosion of cement stabilized macadam base[J]. Journal of China & Foreign Highway, 2012, 32(1): 261-264 (in Chinese).
[2] QIN F, HE Z B, HUANG Q N. Research on the corrosion resistance of manganese slag cement stabilized macadam base[J]. Advanced Materials Research, 2011, 280: 13-18.
[3] 郝培文,胡长顺,张炳乾,等.半刚性基层材料抗冲刷性能的研究[J].西安公路交通大学学报,2000,20(2):9-11.
HAO P W, HU C S, ZHANG B Q, et al. Study on anti brushing performance of semi rigid base course[J]. Journal of Xi’an Highway University, 2000, 20(2): 9-11 (in Chinese).
[4] 胡力群,沙爱民.沥青路面水泥稳定类基层材料抗冲刷性能试验及机理研究[J].中国公路学报,2003,16(1):15-18.
HU L Q, SHA A M. Experiment and mechanism analysis for anti-erosion of cement stabilized soil material base-course of bituminous pavement[J]. China Journal of Highway and Transport, 2003, 16(1): 15-18 (in Chinese).
[5] 卢浩,晏长根,杨晓华,等.麦秆纤维加筋土对黄土边坡抗冲刷的试验研究[J].合肥工业大学学报(自然科学版),2016,39(12):1671-1675.
LU H, YAN C G, YANG X H, et al. Experimental research on anti-eroding effect of reinforced soil with wheat straw in loess slope[J]. Journal of Hefei University of Technology (Natural Science), 2016, 39(12): 1671-1675 (in Chinese).
[6] 吴文飞,张纪阳,何锐,等.固化剂改良水泥稳定黄土强度及水稳性研究[J].硅酸盐通报,2016,35(7):2159-2165.
WU W F, ZHANG J Y, HE R, et al. Firming agent to improve strength and water stability of stabilized loess with cement[J]. Bulletin of the Chinese Ceramic Society, 2016, 35(7): 2159-2165 (in Chinese).
[7] 王银梅,徐鹏飞.新型高分子材料固化黄土边坡的抗冲刷试验[J].中国地质灾害与防治学报,2018,29(6):92-96.
WANG Y M, XU P F. Experimental study on erosion resistance of loess slope solidified with new high polymer material[J]. The Chinese Journal of Geological Hazard and Control, 2018, 29(6): 92-96 (in Chinese).
[8] 朱唐亮,谈至明,周玉民.水泥稳定类基层材料抗冲刷性能的试验研究[J].建筑材料学报,2012,15(4):565-569.
ZHU T L, TAN Z M, ZHOU Y M. Experimental research on erosion-resistance performances of cement stabilized base materials[J]. Journal of Building Materials, 2012, 15(4): 565-569 (in Chinese).
[9] 俞海珊,赵全胜,张春会,等.水泥稳定碎石基层动水冲刷试验研究[J].公路,2019,64(2):18-26.
YU H S, ZHAO Q S, ZHANG C H, et al. Experimental study of dynamic water erosion to cement stabilized macadam base[J]. Highway, 2019, 64(2): 18-26 (in Chinese).
[10] 沙爱民,胡力群.路面基层材料抗冲刷性能试验研究[J].岩土工程学报,2002,24(3):276-280.
SHA A M, HU L Q. Experimental study on the anti-erosion properties of pavement base materials[J]. Chinese Journal of Geotechnical Engineering, 2002, 24(3): 276-280 (in Chinese).
[11] 沙爱民,胡力群.半刚性基层材料抗冲刷性能试验方法研究[J].中国公路学报,2002,15(2):4-7.
SHA A M, HU L Q. Study of the testing method for anti-erosion properties of semi-rigid base materials[J]. China Journal of Highway and Transport, 2002, 15(2): 4-7 (in Chinese).
[12] 沈波,艾翠玲,徐岳,等.公路路基压实黄土坡面人工降雨侵蚀试验[J].长安大学学报(自然科学版),2004,24(6):11-14.
SHEN B, AI C L, XU Y, et al. Corrode test of highway impact loess roadbed slope surface with man-made rainfall[J]. Journal of Chang’an University (Natural Science Edition), 2004, 24(6): 11-14 (in Chinese).
[13] 吴谦,王常明,宋朋燃,等.黄土陡坡降雨冲刷试验及其三维颗粒流流-固耦合模拟[J].岩土力学,2014,35(4):977-985.
WU Q, WANG C M, SONG P R, et al. Rainfall erosion experiment for steep loess slope and fluid-soil coupling simulation with PFC^3D[J]. Rock and Soil Mechanics, 2014, 35(4): 977-985 (in Chinese).
[14] 张雁,高树增,闫超群,等.降雨对黄土路基边坡的冲刷规律[J].中国地质灾害与防治学报,2017,28(4):34-39.
ZHANG Y, GAO S Z, YAN C Q, et al. Rainfall erosion on loess subgrade slopes[J]. The Chinese Journal of Geological Hazard and Control, 2017, 28(4): 34-39 (in Chinese).
[15] 高伟,崔巍,李秀凤.半刚性基层表面抗冲刷性能试验与分析[J].公路交通科技,2018,35(3):1-7.
GAO W, CUI W, LI X F. Experiment and analysis of anti-erosion performance of semi-rigid base surface[J]. Journal of Highway and Transportation Research and Development, 2018, 35(3): 1-7 (in Chinese).
[16] SHA D, PAN B F, SUN Y R, et al. A new approach to evaluating the moisture damage of semi-rigid base materials based on the eroding test by the hydrodynamic pressure generator[J]. Construction and Building Materials, 2019, 227: 116613.
[17] ZHANG J, WENG X Z, LIU J Z. Strength and water stability of a fiber-reinforced cemented loess[J]. Journal of Engineered Fibers and Fabrics, 2018, 13(1): 72-83.
[18] 盛燕萍,李海滨,陈拴发,等.基于灰色理论的水泥稳定碎石冲刷量模型[J].长安大学学报(自然科学版),2012,32(2):22-28.
SHENG Y P, LI H B, CHEN S F, et al. Erosion predict model of cement-stabilized macadam based on gray system theory[J]. Journal of Chang’an University (Natural Science Edition), 2012, 32(2): 22-28 (in Chinese).
[19] 郭瑞,李萍,岳夏冰.基于灰色理论的水泥稳定碎石基层抗冲刷性能分析[J].硅酸盐通报,2018,37(12):3922-3929.
GUO R, LI P, YUE X B. Analysis on anti-erosion performance of cement stabilized macadam base based on grey theory[J]. Bulletin of the Chinese Ceramic Society, 2018, 37(12): 3922-3929 (in Chinese).
[20] GUO R, NIAN T F, LI P, et al. Anti-erosion performance of asphalt pavement with a sub-base of cement-treated mixtures[J]. Construction and Building Materials, 2019, 223: 278-287.
[21] WANG Z J, ZHAO B M, ROYAL A C D. Investigation of erosion of cement-bentonite via piping[J]. Advances in Materials Science & Engineering, 2017(1): 1-8.
[22] NARLOCH P, WOYCIECHOWSKI P. Assessing cement stabilized rammed earth durability in A humid continental climate[J]. Buildings, 2020, 10(2): 26.
[23] 郭瑞,杨晓娟,蒋红,等.沥青路面水泥稳定碎石基层抗冲刷性能影响因素试验分析[J].工程科学与技术,2019,51(2):78-84.
GUO R, YANG X J, JIANG H, et al. Experimental analysis of influencing factors on anti-erosion performance of cement stabilized macadam base for asphalt pavement[J]. Advanced Engineering Sciences, 2019, 51(2): 78-84 (in Chinese).
[24] JIANG Y J, YUAN K J, LI Q L, et al. Comparison of mechanical properties of cement-stabilized loess produced using different compaction methods[J]. Advances in Materials Science and Engineering, 2020(1): 1-20.
[25] 陈伟,张吾渝,马艳霞,等.青海地区重塑黄土力学性能影响因素分析[J].铁道建筑,2014,54(1):82-84.
CHEN W, ZHANG W Y, MA Y X, et al. Analysis of mechanical performance affecting factors of remolded loess in Qinghai region[J]. Railway Engineering, 2014, 54(1): 82-84 (in Chinese).
[26] 李宝平,王智,张玉.关中地区重塑黄土强度特性三轴试验研究[J].铁道建筑,2017,57(8):78-82.
LI B P, WANG Z, ZHANG Y. Triaxial test study on strength characteristics of remolded loess in Guanzhong area[J]. Railway Engineering, 2017, 57(8): 78-82 (in Chinese).