草本植物对硫酸盐渍土强度影响的试验研究  

Experimental Study on Effect of Herbaceous Plants on Strength of Sulphate Saline Soil

作　　者：高政玺 努尔比耶·托合提热杰普 阿孜古丽·加帕尔 古丽米热·艾合买提 热依汗古丽·麦麦提 璩继立[2] GAO Zhengxi;Nurbiye Tohtirjap;Arzugul Jappar;Gulmira Ahmat;Rayhangul Mamitimin;QU Jili(School of Civil Engineering,Kashi University,Kashi,Xinjiang 844000,China;School of Environment and Architecture,University of Shanghai for Science and Technology,Yangpu,Shanghai 200093 China)

机构地区：[1]喀什大学土木工程学院,新疆喀什844000 [2]上海理工大学环境与建筑学院,上海杨浦200093

出　　处：《陕西农业科学》2024年第1期86-91,共6页Shaanxi Journal of Agricultural Sciences

摘　　要：为探究草本植物生长对硫酸盐渍土的强度影响,分析其生物量与盐渍土强度相关关系;选取常见的高羊茅、黑麦草、早熟禾做为试验用草,定期测定草本植物的不同部分生物量和根土复合体的抗剪强度。其中高羊茅、黑麦草的生物量增量高于早熟禾,三种根土复合体的强度均大于素土强度,其粘聚力也明显提高。但内摩擦角变化并不显著,与素土相比仅有小幅度提高。草本植物的生长可在一定程度上提高硫酸盐渍土的土体强度,高羊茅、黑麦草对盐渍土的固土效果优于早熟禾,早熟禾不适宜在盐渍土上种植。In order to explore the effect of herbaceous plant growth on the strength of saline soil,we analyzed the correlation between the biomass and the strength of saline soil.Tall fescia,Ryegrass and Poa pratensis were selected as experimental grasses,and the biomass of different parts of herbaceous plants and the shear strength of root-soil complex were measured regularly.The biomass increment of Tall fescia and Ryegrass was higher than that of Poa pratensis,the strength of the three root-soil complexes was greater than that of root-free soil,and the cohesion was also improved significantly.However,the change in the internal friction angle was not significant;it only increased slightly compared to rootless soil.The growth of herbaceous plants improved the soil strength of sulphated saline soil to a certain extent.It is concluded that the soil fixing effect of Tall fescia and ryegrass on saline soil is better than that of Poa Pratensis,Poa Pratensis not suitable for planting on saline soil.

关 键 词：草本植物 硫酸盐渍土 根土复合体 植物生物量 抗剪强度 

分 类 号：TU411[建筑科学—岩土工程]