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本文主要论述了空洞形成的原因及表现:1.易溶盐含量高;2.水量供应充足;3.路堤高。空洞的危害:1.路基坍塌;2.路面沉陷;3.水毁;4.文通肇事。路肩空洞防治方法:1.专土施压法;2.植被保护法;3.表层改善法。
This paper mainly discusses the formation of hollow causes and manifestations: 1. Easy soluble salt content is high; 2. Adequate water supply; 3. Embankment high. Hole hazards: 1. Subgrade collapse; 2. Pavement subsidence; 3. Destruction; 4. Wen Tong accident. Shoulder hole hollow prevention and treatment methods: 1. Soil pressure law; 2. Vegetation Protection Act; 3. Surface Improvement Act.