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A platform for research: civil engineering, architecture and urbanism
Inverted filtration design method of inverted filtration vibro-replacement gravel pile
The invention provides an inverted filtration design method of an inverted filtration vibro-replacement gravel pile, which comprises the following steps: performing inverted filtration protection design on gravel pile filler and soil between piles, evaluating the liquefaction possibility of each layer of soil according to the geological conditions of a foundation, and performing gravel pile design on easily liquefied soil, including gravel pile diameter design, reinforcement depth design, inter-row spacing design and grain composition design; the vibro-replacement gravel pile body is simple in structure, convenient to construct and low in cost; the grain composition of the gravel pile can be designed and adjusted according to the grain composition of the soil body around the pile body and the Taisha standard, so that the design target of remarkably improving the permeability stability of the soil body around the pile body is achieved; the pile body is of a single earth-rock structure, is free of pollution, environmentally friendly, high in durability and reliability and suitable for being used in water-power engineering needing long-term underwater service. The grain composition of the vibro-replacement gravel pile body is designed according to the grain composition of the liquefiable soil body of the foundation, the permeability stability and the anti-permeability strength of the soil body around the pile can be remarkably improved, and the seepage safety of the dam foundation is ensured.
本发明提供了一种反滤振冲碎石桩的反滤设计方法，碎石桩填料采用与桩间土反滤保护设计，根据地基地质条件，评价各层土体发生液化的可能性，对易液化土体进行碎石桩设计，包括碎石桩桩径、加固深度、间排距和颗粒级配设计；振冲碎石桩桩体结构简单、便于施工、成本低廉；碎石桩的颗粒级配可根据桩体周围土体的颗粒级配，按照太沙基准则进行设计调整，从而达到显著提升桩周土体渗透稳定性的设计目标；桩体为单一土石结构，无污染，环境友好，耐久性强，可靠性强，适用于需要长期水下服役的水电工程使用；振冲碎石桩桩体的颗粒级配根据地基易液化土体的颗粒级配而设计，其可以显著提高桩周土体的渗透稳定性、抗渗强度，确保坝基渗流安全。
Inverted filtration design method of inverted filtration vibro-replacement gravel pile
The invention provides an inverted filtration design method of an inverted filtration vibro-replacement gravel pile, which comprises the following steps: performing inverted filtration protection design on gravel pile filler and soil between piles, evaluating the liquefaction possibility of each layer of soil according to the geological conditions of a foundation, and performing gravel pile design on easily liquefied soil, including gravel pile diameter design, reinforcement depth design, inter-row spacing design and grain composition design; the vibro-replacement gravel pile body is simple in structure, convenient to construct and low in cost; the grain composition of the gravel pile can be designed and adjusted according to the grain composition of the soil body around the pile body and the Taisha standard, so that the design target of remarkably improving the permeability stability of the soil body around the pile body is achieved; the pile body is of a single earth-rock structure, is free of pollution, environmentally friendly, high in durability and reliability and suitable for being used in water-power engineering needing long-term underwater service. The grain composition of the vibro-replacement gravel pile body is designed according to the grain composition of the liquefiable soil body of the foundation, the permeability stability and the anti-permeability strength of the soil body around the pile can be remarkably improved, and the seepage safety of the dam foundation is ensured.
本发明提供了一种反滤振冲碎石桩的反滤设计方法，碎石桩填料采用与桩间土反滤保护设计，根据地基地质条件，评价各层土体发生液化的可能性，对易液化土体进行碎石桩设计，包括碎石桩桩径、加固深度、间排距和颗粒级配设计；振冲碎石桩桩体结构简单、便于施工、成本低廉；碎石桩的颗粒级配可根据桩体周围土体的颗粒级配，按照太沙基准则进行设计调整，从而达到显著提升桩周土体渗透稳定性的设计目标；桩体为单一土石结构，无污染，环境友好，耐久性强，可靠性强，适用于需要长期水下服役的水电工程使用；振冲碎石桩桩体的颗粒级配根据地基易液化土体的颗粒级配而设计，其可以显著提高桩周土体的渗透稳定性、抗渗强度，确保坝基渗流安全。
Inverted filtration design method of inverted filtration vibro-replacement gravel pile
一种反滤振冲碎石桩的反滤设计方法
ZHANG DAN (author) / HE SHUNBIN (author) / JIN WEI (author) / JIANG YUANYUAN (author) / RAN CONGYONG (author) / CHEN JIAQI (author) / ZENG QINGMING (author)
2024-07-16
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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