赣南边坡变形破坏模式与防治对策

发布时间：2018-06-11 17:14

本文选题：赣南高速公路 + 边坡类型　；参考：《地质科技情报》2017年03期

【摘要】：赣南地质环境复杂,沉积岩、岩浆岩与变质岩交叉并存;岩浆岩广泛分布,岩体破碎;褶皱、断裂构造发育;风化作用强烈,边坡稳定性差。研究这一地区的变形破坏模式,可以科学有效地对边坡进行防治。大量的野外调研显示,赣南边坡常见的类型主要有土质边坡、类土质边坡、岩质边坡和岩土二元结构边坡4类;赣南边坡常见的变形破坏模式主要有:沿原有结构面滑动、沿顶部拉裂-滑动、土体拉裂-崩塌、圆弧形滑动、坡面冲刷5类。沿原有结构面滑动破坏多见于岩质边坡、类土质边坡中;其余破坏模式多发生于土质边坡、类土质边坡、岩土二元结构边坡的土体部分。根据赣南边坡不同的变形破坏模式,分别提出了科学的防治对策;并针对赣南地区降雨量大、降雨持时长等特点,强调了在边坡的施工过程中应及时修建边坡排水系统,及时进行坡面防护。
[Abstract]:The geological environment of south Jiangxi is complex, sedimentary rock, magmatic rock and metamorphic rock exist side by side; magmatic rock is widely distributed, rock mass is broken, fold and fault structure is developed, weathering is strong, slope stability is poor. Studying the deformation and failure mode in this area can prevent and cure the slope scientifically and effectively. A large number of field investigations show that the common types of slope in south Jiangxi are mainly soil slope, similar soil slope, rock slope and rock soil dual structure slope, and the common deformation and failure modes of south Jiangxi slope include: sliding along the original structural plane, Along the top of the tension-sliding, soil tension-collapse, arc sliding, slope erosion of 5 categories. The sliding failure along the original structural plane occurs in the rock slope and the soil-like slope, while the other failure modes occur in the soil mass part of the soil slope, the soil-like slope and the geotechnical dual structure slope. According to different deformation and failure modes of slope in south Jiangxi province, scientific prevention and cure measures are put forward respectively, and in view of the characteristics of heavy rainfall and duration of rainfall in south Jiangxi, it is emphasized that the drainage system of slope should be built in time during the construction of slope. Timely slope protection.
【作者单位】：江西省高速公路投资集团有限责任公司;中国地质大学(武汉)工程学院;江西省交通设计研究院有限责任公司;
【基金】：江西省交通运输厅科技计划项目(2015c0026)
【分类号】：P642.2

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