期刊论文

Study on the Influence of Slope Change on the Crack Evolution of Expansive Soil Slopes

中文

河南科技

1003-5168

2023

42

11

71-77

10.19968/j.cnki.hnkj.1003-5168.2023.11.015

长沙理工大学校级创新项目“坡度变化对晴雨交替膨胀土边坡的裂缝演变影响规律研究”(SJCX202120)。

本校为第一机构

【目的】为减轻裂隙对膨胀土边坡的危害程度，需要对坡度变化对膨胀土边坡的裂隙演变的影响进行研究。【方法】本研究通过制作1∶0.5、1∶1、1∶1.5和1∶2四组不同坡比的边坡进行干湿循环试验，并使用图像处理技术提取裂隙率、裂隙宽度、裂隙长度等裂隙特征参数进行分析总结。【结果】结果表明：通过对六项主要裂隙试验指标进行主成分分析，综合得出坡比为1∶2的边坡裂隙发育情况最为恶劣，而坡比为1∶1的边坡裂隙发育情况最为安全。【结论】1∶1的坡比在四组坡比中属于控制裂隙发育的一个适中点，有效控制了雨水入渗导致的土体含水率变化，又适量增加了土体自重侧应力，减少了危险裂隙的生成，...

[Purposes]To reduce the damage degree of cracks to expansive soil slope,this paper studies the influence of slope change on crack evolution of expansive soil slope.[Methods]The dry-wet cycle test was carried out by making four groups of slopes with different slope ratio...MORE [Purposes]To reduce the damage degree of cracks to expansive soil slope,this paper studies the influence of slope change on crack evolution of expansive soil slope.[Methods]The dry-wet cycle test was carried out by making four groups of slopes with different slope ratios ...