Integrated protection technology for expansive soil slopes in seasonally frozen zones
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摘要: 边坡防护对于季节冻土区膨胀土渠道边坡冻胀破坏和边坡稳定性是非常必要的。通过工程背景和膨胀土特性的分析,认为季节冻土区膨胀土渠坡防护的目标是尽量抑制破坏区的含水率变化幅度,从而保证膨胀土边坡的土体结构不被破坏,抑制裂隙发育;基于对土体的冻胀和膨胀特性理论研究,提出了兼顾防水与排水的综合防护技术,确保防护措施的长效性。Abstract: In seasonal frozen zones, protection technology for heaving damage and slope stability of expansive soil slopes is necessary. By analyzing the engineering background and characteristics of expansive soil, that it is considered protection goal of expansive soil slopes is to try to suppress the amplitude of the water content of the destruction zone so as to ensure that the soil structure of slope is not destroyed and crack development is restricted. Based on the theoretical researches on frost heaving and swelling characteristics of expansive soil, the comprehensive protection technology with both waterproofing and drainage is proposed to ensure the long-term effectiveness of protective measures.
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Keywords:
- seasonally frozen zone /
- expansive soil slope /
- protection technology
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