两种微生物固化沙障制备方法的固化效果试验研究

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关键词：风沙土；微生物诱导碳酸钙沉积；固化沙障；制备方法；干密度；碳酸钙含量中图分类号：S157.1 文献标志码：A doi：10.3969/j.issn.1000-1379.2026.03.018用格式：，姚姬璇，海涵，等.两种微生物固化沙障制备方法的固化效果试验研究[J].人民黄河，2026，48（3）：119-123，138.

Experimental Study on the Curing Effect of Two Kinds of Microbial Solidified Sand Barrier Preparation Methods

LEI Lei 1，2 ， YAO Jixuan³， HAI Han³， CHEN Qingyun 1，2 ， CHANG Yuxuan4，HU Sile³， TIAN Kanliang3 （1.StateGrid（Xi'an）EnviromentalProtectionTechnologyCenterCo.，Ltd.，Xi'an70，China；2.StateGridShaniElectric Power Co.，LdElectricPowerScieneResearchIstitute，Xi'an70，Chna;.NrthwestA&FUniversity，Yangling0Cina; 4.State Grid Shaanxi Electric Power Co.，Ltd. Ultra-High Voltage Company，Xi'an 710O26，China）

Abstract：Microbialliducedcalcumcarbonateprecipitatio（MCP）echologhasaractedwdeaentioasneonomicalio mentallfriendlyandurablemetodforwindpreventionandsandcontrol.ToprovidenewtechnicalsupprtforapplyingMCPindesertificationcontrol，twouringmetods（VCboardndafle）weresigned，ndureas-producingbacteriatgeterhcementatiolutios attwoconcentrations（1.l/Lnd2.0mol/L）wereitroducedtopreparemicrobllsidifiedsandbariers.Teoptimalcurigethod wasexploredbycomparingthedrydensityandcalciumcarbonatecontentofthbarrersunderdfrentcuringconditions.Teresultsshow that：a）MICPconsolidation generatesalarge amountofcalciumcarbonatecrystalsbetweensand particles，cementingthemtogetherand formingmicrobiallyconsolidatedsandbariers；b）Thebaflecuring methodachieves goodconsolidationintheshallwlayer（ 0-10 cm）but is less effective and uniform in deeper layers （ > 10 cm），whereas the PVC board curing method maintains effective and uniform consolidation across different depths; c ） Increasing the cementation solution concentration enhances both dry density and calcium carbonate content，but no significant difference is observed of 1.5mol/L and 2.0mol/L ， indicating that solution concentration has no notable effect on the consolidation performance.

eyWords：aeoliansandy soil；MICP；solidified sandbarrier；preparation method；drydensity；calciumcarbonate content

土地荒漠化是全球性环境问题，严重威胁人类的生存环境和可持续发展。（剩余8350字）