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A platform for research: civil engineering, architecture and urbanism
Anchor of tunnel anchorage
An anchor of a tunnel anchorage comprises a tunnel body, a front anchor chamber, an anchor plug body and a splay saddle buttress. The anchor of the tunnel anchorage has the structural features that the anchor of the tunnel anchorage further comprises a pile foundation group, the pile foundation group comprises multiple pile foundations, the tunnel body comprises a tunnel base plate, and the tops of the multiple pile foundations are fixedly connected with the tunnel base plate. The pile foundation group of the tunnel anchorage is embedded and fixed into a foundation. The tensile shear requirement on the foundation of the original tunnel anchorage is converted into the lateral horizontal resistance requirement on the foundation of the pile foundation group, and most of pulling force of a main cable is provided by the bending shear strength of the pile foundation group. Since the compressive strength of the foundation is greatly larger than the shear strength of the foundation, the requirement of the anchor for the geological condition of the foundation is greatly lowered, the technical problem of application of a traditional tunnel anchorage in the areas with poor geological bed rockconditions, such as soft rock, intense weathering and over hard rock and broken hard rock are solved, and the applicability of a suspension bridge under poor geological conditions is improved.
一种隧道锚锚碇，包括隧道体、前锚室、锚塞体、散索鞍支墩，其结构特点是，还包括桩基群，所述桩基群包括多个桩基，所述隧道体包括隧道底板，多个所述桩基的顶部与所述隧道底板固定连接。隧道锚的桩基群嵌固于地基中，将原隧道锚对地基的拉剪要求转变为桩基群对地基侧向水平抗力的要求，而主缆拉力大部分由桩基群本身的弯剪强度提供；由于地基抗压强度远大于抗剪强度，因此大大降低了锚碇对地基地质条件的要求，解决了传统隧道锚在软岩、或强风化及以上硬岩、或较破碎硬岩等地质基岩条件较差地区应用的技术问题，提高了悬索桥在较差地质条件下的适用性。
Anchor of tunnel anchorage
An anchor of a tunnel anchorage comprises a tunnel body, a front anchor chamber, an anchor plug body and a splay saddle buttress. The anchor of the tunnel anchorage has the structural features that the anchor of the tunnel anchorage further comprises a pile foundation group, the pile foundation group comprises multiple pile foundations, the tunnel body comprises a tunnel base plate, and the tops of the multiple pile foundations are fixedly connected with the tunnel base plate. The pile foundation group of the tunnel anchorage is embedded and fixed into a foundation. The tensile shear requirement on the foundation of the original tunnel anchorage is converted into the lateral horizontal resistance requirement on the foundation of the pile foundation group, and most of pulling force of a main cable is provided by the bending shear strength of the pile foundation group. Since the compressive strength of the foundation is greatly larger than the shear strength of the foundation, the requirement of the anchor for the geological condition of the foundation is greatly lowered, the technical problem of application of a traditional tunnel anchorage in the areas with poor geological bed rockconditions, such as soft rock, intense weathering and over hard rock and broken hard rock are solved, and the applicability of a suspension bridge under poor geological conditions is improved.
一种隧道锚锚碇，包括隧道体、前锚室、锚塞体、散索鞍支墩，其结构特点是，还包括桩基群，所述桩基群包括多个桩基，所述隧道体包括隧道底板，多个所述桩基的顶部与所述隧道底板固定连接。隧道锚的桩基群嵌固于地基中，将原隧道锚对地基的拉剪要求转变为桩基群对地基侧向水平抗力的要求，而主缆拉力大部分由桩基群本身的弯剪强度提供；由于地基抗压强度远大于抗剪强度，因此大大降低了锚碇对地基地质条件的要求，解决了传统隧道锚在软岩、或强风化及以上硬岩、或较破碎硬岩等地质基岩条件较差地区应用的技术问题，提高了悬索桥在较差地质条件下的适用性。
Anchor of tunnel anchorage
一种隧道锚锚碇
QIN BO (author) / WANG HONGGUI (author) / HUANG LIEFU (author) / LIU XUESONG (author) / LIU ZHAOHUI (author)
2020-06-30
Patent
Electronic Resource
Chinese