•  
  •  
 

Abstract

This study investigated the impact of the soybean urease-induced calcium carbonate precipitation (SICP ) technique on frost heave characteristics of saline soil,specifically addressing the frost heave in saline soil used as a subgrade.The relationships between compaction degree,moisture content,volume ratio of the reaction liquid,and curing temperature with the frost heave rate of treated soil were explored.The results show that SICP significantly reduces the frost heave rate of soil samples by over 28%,with the most noticeable improvement occurring under conditions of higher compaction degree and lower moisture content.Additionally,the increased volume ratio of reaction liquid enhances reaction efficiency,while lower curing temperatures are crucial for maintaining urease activity,both of which contribute to the precipitation of calcium carbonate and thereby improve the resistance of saline soil to frost heave.Sensitivity analysis indicates that moisture content and volume ratio of reaction liquid have a significant impact on the frost heave rate of saline soil,while compaction degree and curing temperature exert lesser effects.In conclusion,the SICP technique has been proven to be effective for mitigating frost heave in saline soil,providing insights for subgrade engineering in cold and arid regions.

Publication Date

2-22-2025

DOI

10.14048/j.issn.1671-2579.2025.01.006

First Page

53

Last Page

59

Submission Date

March 2025

Reference

[1]李宏波,李盛,于广云,等.超硫酸盐渍土固化强度及冻融特性试验研究 [J].工程科学与技术,2024,56(6):147-160.LI Hongbo,LI Sheng,YU Guangyun,et al.Experimental study on curing strength and freeze-thaw characteristics of supersulphate saline soil [J].Advanced Engineering Sciences,2024,56(6):147-160.
[2]胡文柱,王照威,曹勇,等.氯离子对盐渍化寒区路基填土盐胀的影响研究 [J].中外公路,2024,44(5):50-58.HU Wenzhu,WANG Zhaowei,CAO Yong,et al.Effect of chloride ions on salt expansion of salinized subgrade fill soil in cold regions [J].Journal of China & Foreign Highway,2024,44(5):50-58.
[3]刘海翔,柴明霞,马艳霞,等.冻融循环条件下细粒硫酸盐渍土盐冻胀力学特性试验研究 [J].西安建筑科技大学学报(自然科学版 ),2024,56(1):23-29,73.LIU Haixiang,CHAI Mingxia,MA Yanxia,et al.Experimental study on salt frost heaving mechanical properties of fine-grained sulfate saline soil under freeze-thaw cycle conditions [J].Journal of Xi ’an University of Architecture & Technology (Natural Science Edition ),2024,56(1):23-29,73.
[4]包卫星,李伟,毛雪松,等.冻融循环条件下盐渍化风积沙力学特性 [J].交通运输工程学报,2023,23(6):114-124.BAO Weixing,LI Wei,MAO Xuesong,et al.Mechanical properties of salinized aeolian sand under freeze-thaw cycles [J].Journal of Traffic and Transportation Engineering,2023,23(6):114-124.
[5]廖昕,范茂基,陈治良,等.冻融循环下罗布泊盐渍土的累积变形特性研究 [J].工程地质学报,2024,32(3):800-810.LIAO Xin,FAN Maoji,CHEN Zhiliang,et al.Accumulative deformation characteristics of saline soils in lop nur under freeze-thaw cycles [J].Journal of Engineering Geology,2024,32(3):800-810.
[6]李萍,杨熙,王英.河西走廊地区盐渍土路基换填层水盐迁移试验研究 [J].武汉大学学报 (工学版 ),2024,57(5):582-592.LI Ping,YANG Xi,WANG Ying.Experimental study on water and salt migration of replacement layer saline soil subgrade in Hexi Corridor [J].Engineering Journal of Wuhan University,2024,57(5):582-592.
[7]冉武平,李世彤,陈远国.油污泥热解残渣改良新疆盐渍土回弹模量试验研究 [J].公路工程,2022,47(4):111-116.RAN Wuping,LI Shit ong,CHEN Yuanguo.Experimental study on resilience modulus of salinized soil in Xinjiang improved by pyrolysis residue of oil sludge [J].Highway Engineering,2022,47(4):111-116.
[8]王旭超,张莎莎,赵凯旋.细粒土含量对粗粒硫酸盐渍土路基填料盐胀特性的影响试验及分析模型 [J].岩土力学,2022,43(8):2191 -2202.WANG Xuchao,ZHANG Shasha,ZHAO Kaixuan.Salt expansion characteristics and analysis model of coarse-grained sulfate saline soil embankment fill material with increasing fines content [J].Rock and Soil Mechanics,2022,43(8):2191 -2202.
[9]LI J,BI W W,YAO Y S,et al.State-of-the-art review of utilization of microbial-induced calcite precipitation for improving moisture-dependent properties of unsaturated soils [J].Applied Sciences,2023,13(4):250.
[10]王钰珊,袁童,雷学文.椰壳纤维 ‒MICP复合改良膨胀土膨胀特性研究 [J].水利与建筑工程学报,2024,22(5):67-71,81.WANG Yushan,YUAN Tong,LEI Xuewen.Expansion characteristics of the coir fiber-MICP composite improved expansive soil [J].Journal of Water Resources and Architectural Engineering,2024,22(5):67-71,81.
[11]泮晓华,唐朝生,施斌.微生物矿化作用改善不同孔隙砂岩抗冻融特性试验研究 [J].高校地质学报,2021,27(6):723-730.PAN Xiaohua,TANG Chaosheng,SHI Bin.Experimental investigation of microbial induced calcite precipitation(MICP ) improvement on freeze-thaw resistance of sandstone with various types of porosity [J].Geological Journal of China Universities,2021,27(6):723-730.[12]胡坪伸,张文,赵媛,等.青海强盐渍粉砂土 MICP的有效性探索 [J].土木工程学报,2022,55(3):65-7.HU Pingshen,ZHANG Wen,ZHAO Yuan,et al.Study on the effectiveness of MICP for highly saline silty soil in Qinghai [J].China Civil Engineering Journal,2022,55(3):65-7.
[13]董旭光,方礼鑫,马渊博,等.大豆脲酶诱导碳酸钙固化黄土的强度试验研究 [J].地震工程学报,2024,46(5):1009 -1020.DONG Xuguang,FANG Lixin,MA Yuanbo,et al.Experimental study on the strength of loess solidified by soybean urease-induced calcium carbonate precipitation[J].China Earthquake Engineering Journal,2024,46(5):1009 -1020.
[14]原华,刘康,原耀楠,等.大豆脲酶诱导碳酸钙沉淀的多因素影响分析 [J].人工晶体学报,2021,50(2):375-380.YUAN Hua,LIU Kang,YUAN Yaonan,et al.Affecting analysis of multi-factors on soybean urease-induced calcium carbonate precipitation [J].Journal of Synthetic Crystals,2021,50(2):375-380.
[15]交通部公路科学研究院.公路土工试验规程:JTG 3430—2020 [S].北京:人民交通出版社股份有限公司,2020Research Institute of Highway Ministry of Transport.Test methods of soils for highway engineering:JTG 3430—2020 [S].Beijing:China Communications Press Co.,Ltd.,2020.
[16]侯兆领.压实度及含水率对盐渍土冻胀规律影响试验研究[J].公路,2023,68(3):316-320.HOU Zhaoling.Research on the influence of compactness and moisture content on frost heaving law of saline soil [J].Highway,2023,68(3):316-320.

Download

Plum Print visual indicator of research metrics
PlumX Metrics
  • Usage
    • Downloads: 4
see details

Share

COinS