Experimental Study on Water Retention Properties of Microbially Stabilized Aeolian Sand Soil

Yao Jixuan; Wu Yuyao; Chen Zhuo; Duan Jingui; Zhao Xiaojuan; Tian Kanliang

doi:10.13961/j.cnki.stbctb.2023.02.013

您当前的位置：

首页 >

文章列表页 >

Experimental Study on Water Retention Properties of Microbially Stabilized Aeolian Sand Soil

- Experimental Study on Water Retention Properties of Microbially Stabilized Aeolian Sand Soil
- Bulletin of Soiland Water Conservation Vol. 43, Issue 2, Pages: 104-112(2023)
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所, 陕西杨凌,712100
  2. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2023.02.013
  CLC： S157.2
- Published：2023
- 稿件说明：
移动端阅览
Yao Jixuan, Wu Yuyao, Chen Zhuo, et al. Experimental Study on Water Retention Properties of Microbially Stabilized Aeolian Sand Soil[J]. Bulletin of Soiland Water Conservation, 2023, 43(2): 104-112.
DOI：

Yao Jixuan, Wu Yuyao, Chen Zhuo, et al. Experimental Study on Water Retention Properties of Microbially Stabilized Aeolian Sand Soil[J]. Bulletin of Soiland Water Conservation, 2023, 43(2): 104-112. DOI： 10.13961/j.cnki.stbctb.2023.02.013.

摘要

[目的

]

研究微生物诱导碳酸钙沉淀(MICP)固化风沙土的性能，为MICP技术在固化风沙土以及恢复生态等方面提供理论依据。 [方法

]

采用MICP技术对风沙土进行不同次数的固化处理，通过扫描电镜和光学显微镜对固化风沙土的微观结构进行分析，并测试分析固化试样的基本物理性质和保水性。 [结果

]

通过MICP处理的风沙土，在风沙土颗粒之间有碳酸钙晶体生成，将沙土颗粒胶结在一起，使松散的风积沙固化成具有一定强度的整体;随着固化次数的增加，固化风沙土的厚度、干密度、碳酸钙含量逐渐增大，渗透系数逐渐减小，固化厚度由3.38 mm增加至11.28 mm，干密度由原沙的1.61 g/cm

增加至2.05 g/cm

，碳酸钙含量由8.99%增加至13.08%，渗透系数由原沙的1.06×10

-3

cm/s减少至2.35×10

-4

cm/s;当固化处理次数不大于5次时，保水率随固化处理次数的增加而增大，固化试样的保水性能有所改善，固化处理超过5次后，保水性能则有所下降。 [结论

]

采用MICP技术固化的风沙土，可明显改善风沙土的干密度、渗透性能和保水性。综合考虑固化效果、保水性及经济性，建议最佳的固化处理次数为3次。这样可有效防治风蚀并保持土壤水分以利于生态修复。

Abstract

[Objective] The performance of microbial induced calcium carbonate precipitation (MICP) to stabilize aeolian sand soil was studied in order to providing a theoretical basis for MICP technology in stabilize aeolian sand soil and restoring ecology. [Methods] The microstructure of aeolian sand soil was analyzed by use of scanning electron microscopy and optical microscopy on an aeolian sand soil stabilized with MICP. The test analyzed the basic physical properties and water retention of stabilized specimens. [Results] The aeolian sand soil treated with MICP had calcium carbonate crystals generated between the aeolian sand particles that cemented the sand particles together and solidified the loose aeolian sand into a whole with a certain strength. As curing time increased

the thickness

dry density

and calcium carbonate content of cured aeolian sand gradually increased

the permeability coefficient gradually decreased

the stabilized thickness increased from 3.38 mm to 11.28 mm

the dry density increased from 1.61 g/cm3 for the original sand to 2.05 g/cm3

the calcium carbonate content increased from 8.99% to 13.08%

and the permeability coefficient decreased from 1.06×10-3 cm/s for the original sand to 2.35×10-4 cm/s. When the number of curing treatments was not more than five times

the water retention rate increased with increasing number of curing treatments

and the water retention of the stabilized specimen increased. After more than five curing treatments

water retention decreased. [Conclusion] Aeolian sand soil stabilized by MICP technology can significantly improve the physical and mechanical properties and water retention of aeolian sand soil. Considering this stabilizing effect

water retention

and economics

the best stabilizing treatment time is three times. Thus

we can effectively prevent wind erosion

maintain soil moisture

and facilitate ecological restoration.

关键词

Keywords

references

Yuanyuan Z, Jianguo W, Chunyang H, et al. Linking wind erosion to ecosystem services in drylands: A landscape ecological approach [J]. Landscape Ecology, 2017,32(12):2399-2417.

Wang Tao, Zhu Zhenda, Wu Wei. Sandy desertification in the north of China[J]. Science in China (Series D: Earth Sciences), 2002,45(1):23-34.

韩梅,邬晗,韩柏,等.鄂尔多斯地区毛乌素沙地荒漠化形成因素及治理措施[J].农业与技术,2021,41(18):111-115.

杭利军,童淑敏.浅论干旱、半干旱地区土壤风蚀发生机理及防治措施[J].内蒙古林业科技,2003(2):49-50.

Wang T. Aeolian desertification and its control in Northern China [J]. International Soil and Water Conservation Research, 2014,2(4):34-41.

吴波，慈龙骏.五十年代以来毛乌素沙地荒漠化扩展及其原因[J].第四纪研究,1998(2):165-172.

顿耀权,屈建军,康文岩,等.包兰铁路沙坡头段防护体系研究综述[J].中国沙漠,2021,41(3):66-74.

邓友生,彭程谱,刘俊聪,等.沙漠公路灾害防治方法及其工程应用[J].公路,2021,66(6):345-351.

居炎飞,邱明喜,朱纪康,等.我国固沙材料研究进展与应用前景[J].干旱区资源与环境,2019,33(10):138-144.

李元元,王占礼.聚丙烯酰胺(PAM)防治土壤风蚀的研究进展[J].应用生态学报,2016,27(3):1002-1008.

唐艳,刘连友,屈志强,等.植物阻沙能力研究进展[J].中国沙漠,2011,31(1):43-48.

Victoria S W, Leon A V P, Marien P H. Microbial carbonate precipitation as a soil improvement technique [J]. Geomicrobiology Journal, 2007,24(5):417-423.

彭劼,冯清鹏,孙益成.温度对微生物诱导碳酸钙沉积加固砂土的影响研究[J].岩土工程学报,2018,40(6):1048-1055.

Fahmi A, Katebi H, Hajialilue B M, et al. Microbial sand stabilization using corn steep liquor culture media and industrial calcium reagents in cementation solutions [J]. Industrial Biotechnology, 2018,14(5):270-275.

Gowthaman S, Chen M, Nakashima K, et al. Effect of Scallop powder addition on micp treatment of amorphous peat [J]. Frontiers in Environmental Science, 2021,9(6):1-13.

中华人民共和国水利部. GB/T50123-2019土工试验方法标准[S].北京:中国计划出版社,2019.

吴雨瑶.风沙土的微生物固化及其抗风蚀试验研究[D].陕西杨凌：西北农林科技大学,2018.

Kanliang T, Yuyao W, Huili Z, et al. Increasing wind erosion resistance of aeolian sandy soil by microbially induced calcium carbonate precipitation [J]. Land Degradation & Development, 2018,29(12):4271-4281.

彭新华,张斌,李江涛,等.对多孔介质物体孔隙度—蜡封法改进的探讨:以土壤团聚体为例[J].土壤通报,2003,34(1):19-20.

宫辛玲,高军侠,尹光华,等.4种不同类型土壤保水剂保水性能的比较[J].生态学杂志,2008,27(4):652-656.

汪亚峰,李茂松,宋吉青,等.保水剂对土壤体积膨胀率及土壤团聚体影响研究[J].土壤通报,2009,40(5):1022-1025.

李多.微生物诱导碳酸钙沉淀固化沙漠风积砂的研究[D].陕西杨凌：西北农林科技大学,2018.

陈利轩.碳酸钙改性高吸水树脂的合成及其性能研究[D].甘肃兰州：兰州交通大学,2014.

李涛,高颖,张嘉睿,等.陕北保水采煤背景下MICP再造隔水土层的试验研究[J].煤炭学报,2021,46(9):2984-2994.

刘小军,郜鑫,潘超钒. MICP固化土遗址裂隙的剪切强度试验研究[J].土木工程学报,2022,55(4):88-94.

支永艳 ,邓华锋,肖瑶,等. 微生物灌浆加固裂隙岩体的渗流特性分析[J].岩土力学,2019,(A01):237-244.

Zhang Junke, Su Peidong, Li Lin. Bioremediation of stainless steel pickling sludge through microbially induced carbonate precipitation [J]. Chemosphere, 2022,298:1-8.

王维大,秦思远,肖宇,等.不同钙源对MICP固化氰化尾渣的影响[J].有色金属(冶炼部分),2022(7):131-137.

葛鑫.不同灌浆方式对MICP固化沙漠风积沙的影响研究[D].江苏南京：东南大学,2021.

王瑞,泮晓华,唐朝生,等. MICP联合纤维加筋改性钙质砂的动力特性研究[J].岩土力学,2022,43(10):2643-2654.

林泓民,卫仁杰,李亮亮,等.黄原胶改进MICP加固效果的试验研究[J].河南科学,2022,40(4):618-627.

王怀星.黄土的微生物固化及抗侵蚀性能试验研究[D].北京：中国科学院大学，2021.

张世参,骆亚生,田堪良,等.风积沙的微生物固化试验研究[J].人民黄河,2021,43(10):144-149.

陶玲,杨欣,吕莹,等.凹凸棒基高分子固沙材料的表征及性能研究[J].硅酸盐通报,2018,37(2):547-552.

陶艳,苏冰琴,张弛,等. CMC-g-AA对掺污泥泡沫混凝土吸水保水性能的影响[J].现代化工,2020,40(S1):151-156.

渠永平,张增志.十六烷基三甲基氯化铵改性黏土固沙保水性能[J].农业工程学报,2020,36(13):109-115.

姜雄,铁生年.添加剂对石膏基固沙材料保水性能的影响[J].硅酸盐通报,2014,33(6):1303-1308.

Views

754

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Structure and shear strength of amorphous iron oxide-kaolinite cementation system in red soil

Influence of soluble salt content on strength of Ili loess under wet-dry cycle conditions

Experimental Study on Permeability Coefficient of Loess with Different Clay Content

Experimental Study on Microbial Mineralization Reinforcement and Erosion Resistance of Loess Slope Surface

Effects of Freeze-thaw Time and Moisture Content on Shear Strength of Loess Reinforced with Sophora Japonica Roots

Related Author

Zhang Yue

Huang Yanhe

Jiang Fangshi

Lin Jinshi

Zheng Qinmin

Yang Maojin

Xu Mengyao

Lü Yihao

Related Institution

College of Resources and Environmental Sciences， Fujian Agriculture and Forestry University

School of Geology and Mining Engineering， Xinjiang University

School of Geological Engineering and Geomatics, Changan University, Xian

Open Research Laboratory of Geotechnical Engineering, Ministry of Land and Resources, Xian

Institute of Soil and Water Conservation, Chinese Academy of Science and Ministry of Water Resources, Yangling

⁰