摘要
为解决广西阳朔地区河道岸坡处红黏土工程地质稳定性差的问题,拟采用刺槐豆胶对该地区红黏土进行改良.通过一系列冲刷及崩解试验,探究了刺槐豆胶掺量及养护龄期对刺槐豆胶改良黏土抗冲刷及抗崩解特性的影响.试验结果表明:刺槐豆胶改良黏土的抗冲刷强度和抗崩解性能主要受刺槐豆胶掺量的影响;随着刺槐豆胶掺量的增加,刺槐豆胶改良黏土的抗冲刷系数呈现先增大后减小的规律,刺槐豆胶掺量为0.3%时,刺槐豆胶改良黏土的抗冲刷性能最强;随着刺槐豆胶掺量的增加,刺槐豆胶改良黏土的抗崩解性能逐渐增强,刺槐豆胶掺量为0.5%时,刺槐豆胶改良黏土的抗崩解性能最强.
In order to solve the problem of poor engineering geologic stability of red clay at the riverbank slope in Yangshuo area of Guangxi,locust bean gum is proposed to be used to improve the red clay in this area.Through a series of scouring and disintegration tests,the effects of locust bean gum dosage and curing age on the scouring and disintegration resistance of locust bean gum-modified clay are investigated.The test results show that the antiscouring strength and anti-disintegration performance of locust bean gum improved clay are mainly affected by the dosage of locust bean gum.With the increase of locust bean gum dosage,the anti-scouring coefficient of locust bean gum-modified clay increases first and then decreases.When the dosage of locust bean gum is 0.3%,locust bean gum improved clay has the strongest scour resistance.With the increase of the amount of locust bean gum,the disintegration resistance of locust bean gum-modified clay gradually increases.When the content of locust bean gum is 0.5%,the anti-disintegration performance of locust bean gum modified clay is the strongest.
作者
罗毓钧
韦挺洪
陆兆锦
杨德健
唐得富
刘瑾
LUO Yujun;WEI Tinghong;LU Zhaojin;YANG Dejian;TANG Defu;LIU jin(Guangxi Beitou Enviromental Protection&Water Group Co.Ltd.,Nanning 530029,China;School of Earth Sciences and Engineering,Hohai University,Nanjing 211100,China)
出处
《河南科学》
2023年第11期1707-1716,共10页
Henan Science
基金
国家自然科学基金面上项目(41877212)
广西北投环保水务集团有限公司科技项目(2022)。
关键词
刺槐豆胶
黏土
冲刷试验
崩解试验
locust bean gum
clay soil
scour test
disintegration test
