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A platform for research: civil engineering, architecture and urbanism
Treatment method for improving bearing capacity of roadbed base
The invention provides a treatment method for improving the bearing capacity of a roadbed base. The treatment method comprises the following steps: firstly, preparing for construction and measuring and setting out; secondly, over-excavation and replacement filling are conducted on an original ground base; then base dynamic compaction is conducted; then blind ditches are constructed; filling construction is conducted on the roadbed, and the separated roadbed is formed; and finally, filling and leveling up the middle part of the separated roadbed according to roadbed standards. A combined construction mode of original ground overexcavation replacement filling and dynamic compaction, blind ditch construction and filling and leveling of the middle of a separated roadbed is adopted, foundation consolidation is accelerated, foundation bearing capacity is improved, precipitation, replacement filling, dynamic compaction and the like are organically combined, the foundation drainage effect is further enhanced through the construction mode and structure of the blind ditch, the required bearing capacity and deformation indexes are achieved, and the construction period is shortened. Therefore, the foundation is firmer, the bearing capacity and the density of the subgrade base are guaranteed, the requirement of a high-filling subgrade is met, and the risk of settlement of the highway subgrade is reduced.
本发明提供了一种提高路基基底承载力的处理方法，包括以下步骤：首先施工准备和测量放样；其次对原地面基底超挖换填；接着进行基底强夯；然后施做盲沟；再对路基填筑施工，形成分离式路基；最后将分离式路基中部按路基标准填平。采用原地面超挖换填和强夯、施做盲沟、填平分离式路基中部的组合施工方式，加快基底固结、提高地基承载力，将降水、换填和强夯等有机结合，盲沟的施工方式和结构进一步加强了基底排水效果，达到要求的承载力和变形指标，使得地基更加牢固，保证了路基基底的承载力和自身密度，满足了高填路基需求，降低了公路路基沉降的风险。
Treatment method for improving bearing capacity of roadbed base
The invention provides a treatment method for improving the bearing capacity of a roadbed base. The treatment method comprises the following steps: firstly, preparing for construction and measuring and setting out; secondly, over-excavation and replacement filling are conducted on an original ground base; then base dynamic compaction is conducted; then blind ditches are constructed; filling construction is conducted on the roadbed, and the separated roadbed is formed; and finally, filling and leveling up the middle part of the separated roadbed according to roadbed standards. A combined construction mode of original ground overexcavation replacement filling and dynamic compaction, blind ditch construction and filling and leveling of the middle of a separated roadbed is adopted, foundation consolidation is accelerated, foundation bearing capacity is improved, precipitation, replacement filling, dynamic compaction and the like are organically combined, the foundation drainage effect is further enhanced through the construction mode and structure of the blind ditch, the required bearing capacity and deformation indexes are achieved, and the construction period is shortened. Therefore, the foundation is firmer, the bearing capacity and the density of the subgrade base are guaranteed, the requirement of a high-filling subgrade is met, and the risk of settlement of the highway subgrade is reduced.
本发明提供了一种提高路基基底承载力的处理方法，包括以下步骤：首先施工准备和测量放样；其次对原地面基底超挖换填；接着进行基底强夯；然后施做盲沟；再对路基填筑施工，形成分离式路基；最后将分离式路基中部按路基标准填平。采用原地面超挖换填和强夯、施做盲沟、填平分离式路基中部的组合施工方式，加快基底固结、提高地基承载力，将降水、换填和强夯等有机结合，盲沟的施工方式和结构进一步加强了基底排水效果，达到要求的承载力和变形指标，使得地基更加牢固，保证了路基基底的承载力和自身密度，满足了高填路基需求，降低了公路路基沉降的风险。
Treatment method for improving bearing capacity of roadbed base
一种提高路基基底承载力的处理方法
GUO HUAJUN (author) / XIN WENHAI (author) / WANG HAIPING (author) / HUANG JIANQIU (author) / REN JUAN (author) / LU SHAOZHEN (author) / LIU YUNLONG (author) / PENG XUEJUN (author) / TANG YU (author) / LING TAO (author)
2024-07-26
Patent
Electronic Resource
Chinese
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