[1] [1] BHATT A, PRIYADARSHINI S, ACHARATH MOHANAKRISHNAN A, et al. Physical, chemical, and geotechnical properties of coal fly ash: a global review[J]. Case Studies in Construction Materials, 2019, 11: e00263.

[2] [2] AREL H ?, SHAIKH F U A. Effects of fly ash fineness, nano silica, and curing types on mechanical and durability properties of fly ash mortars[J]. Structural Concrete, 2018, 19(2): 597-607.

[3] [3] DAS A, JAYASHREE C, VISWANADHAM B V S. Effect of randomly distributed geofibers on the piping behaviour of embankments constructed with fly ash as a fill material[J]. Geotextiles and Geomembranes, 2009, 27(5): 341-349.

[4] [4] BAKARE M D, PAI R R, PATEL S, et al. Environmental sustainability by bulk utilization of fly ash and GBFS as road subbase materials[J]. Journal of Hazardous, Toxic, and Radioactive Waste, 2019, 23(4): 04019011.

[5] [5] BIN-SHAFIQUE S, ?ENOL A, BENSON C, et al. Optimization of strength and ductility of class C fly ash stabilized soft subgrade soils[J]. 2007: 595-600.

[6] [6] KANG X, KANG G C, CHANG K T, et al. Chemically stabilized soft clays for road-base construction[J]. Journal of Materials in Civil Engineering, 2015, 27(7): 04014199.

[7] [7] TASTAN E O, EDIL T B, BENSON C H, et al. Stabilization of organic soils with fly ash[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2011, 137(9): 819-833.

[8] [8] HOU H M, SU L J, GUO D F, et al. Resource utilization of solid waste for the collaborative reduction of pollution and carbon emissions: case study of fly ash[J]. Journal of Cleaner Production, 2023, 383: 135449.

[9] [9] LIU X Y, WANG C M, LIU H L, et al. Shearing characteristics and shearing resistance mechanism of volcanic soil with high vesicularity[J]. Bulletin of Engineering Geology and the Environment, 20, 81(10): 408.

[11] [11] FAISAL NOAMAN M, KHAN M A, ALI K, FAISAL et al. Effect of fly ash on the shear strength of clay soil[J]. Materials Today: Proceedings, 20.

[12] [12] LIU M L, SABERIAN M, LI J,et al. Evaluation of brown coal fly ash for stabilising expansive clay subgrade: a sustainable solution for pavement construction[J].Resources, Conservation and Recycling, 2024, 204: 107533.

[13] [13] LIN D F, LIN K L, LUO H L. A comparison between sludge ash and fly ash on the improvement in soft soil[J]. Journal of the Air & Waste Managment Association, 2007, 57(1): 59-64.

[14] [14] KIM B, PREZZI M. Evaluation of the mechanical properties of class-F fly ash[J]. Waste Management, 2008, 28(3): 649-659.

[15] [15] KANIRAJ S R, GAYATHRI V. Permeability and consolidation characteristics of compacted fly ash[J]. Journal of Energy Engineering, 2004, 130(1): 18-43.

[16] [16] PANDIAN N S. Fly ash characterization with reference to geotechnical applications[J]. Journal of the Indian Institute of Science, 2004, 84(6):189-216.

[17] [17] TU W, ZAND B, BUTALIA T S, et al. Constant rate of strain consolidation of resedimented class F fly ash[J]. Fuel, 2009, 88(7): 1154-1159.

[18] [18] YANG J, NIU X R, GUO Q G, et al. Strength and deformation characteristics of compacted loess with different moisture content and compaction energy[J]. Results in Engineering, 2023, 20: 101637.