| 山区公路拓宽中新旧路基病害机理分析及防治 |
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| 引用本文： | 石灿义.山区公路拓宽中新旧路基病害机理分析及防治[J].地质灾害与环境保护,2014(2):68-70. |
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| 作者姓名： | 石灿义 |
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| 作者单位： | 铁道第三勘察设计院集团有限公司; |
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| 摘 要： | 在公路拓宽过程中,由于沉降、变形累积和稳定性的差异,在新旧路基之间产生差异沉降,进而会引起原有路基变形,新路基失稳,甚至出现路基拉裂和下沉坍塌病害。以某山区拓宽公路中一段病害路基为例,在调查其病害特征的基础上,分析其形成机理,提出防治方法。
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| 关 键 词： | 公路拓宽 病害机理 差异沉降 防治 |
HAZARD FORMATION MECHANISM FOR OLD AND NEW ROAD BEDS IN WIDENING ROADS IN MOUNTAINS AND ITS PREVENTION |
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| SHI Can-yi.HAZARD FORMATION MECHANISM FOR OLD AND NEW ROAD BEDS IN WIDENING ROADS IN MOUNTAINS AND ITS PREVENTION[J].Journal of Geological Hazards and Environment Preservation,2014(2):68-70. |
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| Authors: | SHI Can-yi |
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| Institution: | SHI Can-yi (Third Railway Survey and Design Institute Group Co. , Ltd. , Tianjin 300251 ,China) |
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| Abstract: | In the road widening process, a settlement difference is formed between the old and new roadbeds, due to the differ- ence in subsidence, cumulative deformation and stability. This causes roadbed cracks, subsidence and collapses. A survey is done for the roadbed hazards of a widened road in a mountainous area. And their formation mechanism is analyzed and their control methods are put forward. |
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| Keywords: | road widening hazard mechanism differential settlement prevention |
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