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通过对河北省青银高速公路养护工程中采用微型桩(树根桩)工程的施工,为河北省既有高速公路路基沉降病害防治服务,解决既有高速公路路基沉降病害设计、治理工程中的技术难题,为既有高速公路路基沉降病害的施工图设计和治理工程施工提供有关技术参数和施工工艺,保证既有高速公路的安全运营。同时,为今后类似既有高速公路路基沉降病害的治理工程施工提供技术借鉴和技术指导。
Through the construction of the micro-pile (tree root pile) project in the maintenance project of Qingyin Expressway in Hebei Province, it serves the prevention and treatment of subgrade settlement diseases of the existing freeway in Hebei Province and solves the problems of the design and treatment of existing subgrade settlement of expressway Technical problems, provide technical parameters and construction technology for the construction drawing design and construction of the existing subgrade settlement of the expressway, and ensure the safe operation of the existing expressways. At the same time, it provides technical reference and technical guidance for the construction of the control engineering of similar existing expressway subgrade settlement diseases in the future.