Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for measuring and calculating vertical bearing capacity of single pile of bridge pile foundation
The invention discloses a method for measuring and calculating the vertical bearing capacity of a single pile of a bridge pile foundation. The method comprises the steps that advanced drilling is conducted according to the to-be-built bridge pile foundation; obtaining a geological histogram of a drilled hole according to the drilling condition, obtaining specified rock-soil layer physical and mechanical parameters through a soil test, constructing a karst cave top plate, and calculating the maximum vertical bearing capacity of the karst cave top plate, the interaction force between the pile end of the to-be-constructed bridge pile foundation and a rock-soil body, and the pile periphery friction resistance of the to-be-constructed bridge pile foundation; and finally, according to the maximum vertical bearing force of the karst cave top plate, the interaction force between the pile end and the rock-soil body and the pile periphery friction resistance of the to-be-built bridge pile foundation, the single-pile vertical bearing force of the bridge pile foundation is obtained. Therefore, a method for calculating the vertical bearing capacity of the bridge pile foundation aiming at the bead-shaped karst cave in the karst region is provided, and a reliable and stable reference is provided for design and construction of the bridge pile foundation in the karst region. According to the calculation method, the safety and reliability of bridge engineering are improved, the pile foundation design can be optimized, unnecessary conservative design and resource waste are reduced, and engineering materials and cost are saved.
本发明公开了一种桥梁桩基的单桩竖向承载力测算方法，包括：根据待建桥梁桩基进行超前钻探；根据钻探情况获取钻孔的地质柱状图以及通过土工试验获取指定的岩土层物理力学参数，构建溶洞顶板，计算所述溶洞顶板的最大竖向承受力、所述待建桥梁桩基的桩端与岩土体之间的相互作用力，以及所述待建桥梁桩基的桩周摩阻力；最后根据所述溶洞顶板的最大竖向承受力、桩端与岩土体之间的相互作用力和所述待建桥梁桩基的桩周摩阻力获取所述桥梁桩基单桩竖向承受力；从而提供了一种针对溶岩区串珠状溶洞的桥梁桩基竖向承载力的计算方式，为岩溶区桥梁桩基的设计和施工提供一种可靠且稳定参考，该方法针对钻孔灌注桩采用回填法施工时的岩溶区桩基进行计算，这种计算方法不仅提高了桥梁工程的安全性和可靠性，还可以优化桩基设计，减少不必要的保守设计和资源浪费，节省工程材料和成本。
Method for measuring and calculating vertical bearing capacity of single pile of bridge pile foundation
The invention discloses a method for measuring and calculating the vertical bearing capacity of a single pile of a bridge pile foundation. The method comprises the steps that advanced drilling is conducted according to the to-be-built bridge pile foundation; obtaining a geological histogram of a drilled hole according to the drilling condition, obtaining specified rock-soil layer physical and mechanical parameters through a soil test, constructing a karst cave top plate, and calculating the maximum vertical bearing capacity of the karst cave top plate, the interaction force between the pile end of the to-be-constructed bridge pile foundation and a rock-soil body, and the pile periphery friction resistance of the to-be-constructed bridge pile foundation; and finally, according to the maximum vertical bearing force of the karst cave top plate, the interaction force between the pile end and the rock-soil body and the pile periphery friction resistance of the to-be-built bridge pile foundation, the single-pile vertical bearing force of the bridge pile foundation is obtained. Therefore, a method for calculating the vertical bearing capacity of the bridge pile foundation aiming at the bead-shaped karst cave in the karst region is provided, and a reliable and stable reference is provided for design and construction of the bridge pile foundation in the karst region. According to the calculation method, the safety and reliability of bridge engineering are improved, the pile foundation design can be optimized, unnecessary conservative design and resource waste are reduced, and engineering materials and cost are saved.
本发明公开了一种桥梁桩基的单桩竖向承载力测算方法，包括：根据待建桥梁桩基进行超前钻探；根据钻探情况获取钻孔的地质柱状图以及通过土工试验获取指定的岩土层物理力学参数，构建溶洞顶板，计算所述溶洞顶板的最大竖向承受力、所述待建桥梁桩基的桩端与岩土体之间的相互作用力，以及所述待建桥梁桩基的桩周摩阻力；最后根据所述溶洞顶板的最大竖向承受力、桩端与岩土体之间的相互作用力和所述待建桥梁桩基的桩周摩阻力获取所述桥梁桩基单桩竖向承受力；从而提供了一种针对溶岩区串珠状溶洞的桥梁桩基竖向承载力的计算方式，为岩溶区桥梁桩基的设计和施工提供一种可靠且稳定参考，该方法针对钻孔灌注桩采用回填法施工时的岩溶区桩基进行计算，这种计算方法不仅提高了桥梁工程的安全性和可靠性，还可以优化桩基设计，减少不必要的保守设计和资源浪费，节省工程材料和成本。
Method for measuring and calculating vertical bearing capacity of single pile of bridge pile foundation
桥梁桩基的单桩竖向承载力测算方法
HUANG JIADONG (Autor:in) / HE DEHUA (Autor:in) / YUAN CHENG (Autor:in) / CHEN GULONG (Autor:in) / YANG CHUANGJIE (Autor:in) / CHEN HENG (Autor:in) / YANG QI (Autor:in) / DENG XIAOHUI (Autor:in)
18.10.2024
Patent
Elektronische Ressource
Chinesisch
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