中缅输油管道瑞丽—禄丰段地质地貌特征及风险分析

Analysis of Geological and Geomorphic Features and Possible Risk Factors of Rili-Lufeng Segment in China Burma Oil Pipeline

中缅输油管道国内段的地貌类型为山地、丘陵、平原及山间沟谷,地形复杂、起伏剧烈;沿线跨越多条水系河流;输油管段所处的区域大地构造位置多为较不稳定的地段,个别处为不稳定地段,有些地段位于活动断裂带上,具备发生明显地表错位的地震地质构造条件;大部分工程地段地面土壤属强腐蚀性。调查分析认为,输油管道沿线未来有可能发生地震、山体滑坡、泥石流、地面沉陷、洪水冲击、土壤液化等自然灾害。新建管道开通后难以预测的自然灾害是不可忽视的风险因素。

The geomorphic types of domestic segments along China-Burma oil pipelines appear in mountain, hill, plain and mountain val- ley, etc., across multiple drainages and rivers, characterized by complicated terrains and drastic ups and downs. The regional tectonic loca- tions of the segments are in less stable and unstable areas, some in active fault zones, with obvious surface dislocation and earthquake geo- logical tectonic conditions. Most segments of the engineering geology have highly corrosive soils. The investigation and analysis suggest that such natural disasters may possibly occur as earthquakes, landslides, mud-rock flow, collapse and landslips, ground subsidences, flooding, soil liquefaction, etc. These unpredictable disasters will be the nnnnegligible risk factors after Rili-Lofeng oil pipeline goes into operation.