A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rock anchor cable self-locking anchor plate structure and mounting method
The invention belongs to the field of foundation engineering, and particularly relates to a rock anchor cable self-locking anchor plate structure and an installation method.The structure comprises a foundation platform, a lower anchor plate, an annular wedge block, an anchor cable and an upper anchor plate; the foundation platform is poured on the top surface of the rock drill hole and is provided with an open hole aligned with the rock drill hole; the anchor cable is anchored between the upper anchor plate and the lower anchor plate; the lower anchor plate is a cone frustum, and the annular wedge block abuts against the outer portion of the lower anchor plate in a surrounding mode. The upper anchor plate abuts against the surface of the foundation platform, and the annular wedge block abuts against the inner wall face of a rock drill hole. The lower anchor plate abuts against the annular wedge block under the action of the anchor cable, the annular wedge block pressurizes a rock drill hole through radial component force, and structural self-locking is formed by balancing the tensile force of the anchor cable based on static friction force. Compared with the prior art, the defect that in the prior art, the rock anchor cable cannot be applied due to the fact that a rock stratum is too hard and an expansion head in a rock drill hole is difficult to construct is overcome, and anchor cable unbonded anchoring without construction of the expansion head at the bottom of the rock drill hole and grouting is achieved.
本发明属于基础工程领域，具体涉及一种岩石锚索自锁锚板结构及安装方法，该结构包括基础承台、下锚板、环形楔块、锚索和上锚板；基础承台浇注于岩石钻孔顶面，并设有与岩石钻孔对齐的开孔；锚索锚固于上锚板与下锚板之间；下锚板为圆锥台，环形楔块环绕抵接于下锚板外部；上锚板抵于基础承台表面，环形楔块抵于岩石钻孔内壁面；下锚板与环形楔块在锚索作用下抵接，径向分力使环形楔块对岩石钻孔加压，基于静摩擦力平衡锚索的拉力形成结构自锁。与现有技术相比，本发明解决现有技术中岩层过硬、岩石钻孔内扩大头难以施工而导致的岩石锚索无法应用的缺陷，实现了无需施工岩石钻孔底部扩大头且无需注浆的锚索无粘结锚固。
Rock anchor cable self-locking anchor plate structure and mounting method
The invention belongs to the field of foundation engineering, and particularly relates to a rock anchor cable self-locking anchor plate structure and an installation method.The structure comprises a foundation platform, a lower anchor plate, an annular wedge block, an anchor cable and an upper anchor plate; the foundation platform is poured on the top surface of the rock drill hole and is provided with an open hole aligned with the rock drill hole; the anchor cable is anchored between the upper anchor plate and the lower anchor plate; the lower anchor plate is a cone frustum, and the annular wedge block abuts against the outer portion of the lower anchor plate in a surrounding mode. The upper anchor plate abuts against the surface of the foundation platform, and the annular wedge block abuts against the inner wall face of a rock drill hole. The lower anchor plate abuts against the annular wedge block under the action of the anchor cable, the annular wedge block pressurizes a rock drill hole through radial component force, and structural self-locking is formed by balancing the tensile force of the anchor cable based on static friction force. Compared with the prior art, the defect that in the prior art, the rock anchor cable cannot be applied due to the fact that a rock stratum is too hard and an expansion head in a rock drill hole is difficult to construct is overcome, and anchor cable unbonded anchoring without construction of the expansion head at the bottom of the rock drill hole and grouting is achieved.
本发明属于基础工程领域，具体涉及一种岩石锚索自锁锚板结构及安装方法，该结构包括基础承台、下锚板、环形楔块、锚索和上锚板；基础承台浇注于岩石钻孔顶面，并设有与岩石钻孔对齐的开孔；锚索锚固于上锚板与下锚板之间；下锚板为圆锥台，环形楔块环绕抵接于下锚板外部；上锚板抵于基础承台表面，环形楔块抵于岩石钻孔内壁面；下锚板与环形楔块在锚索作用下抵接，径向分力使环形楔块对岩石钻孔加压，基于静摩擦力平衡锚索的拉力形成结构自锁。与现有技术相比，本发明解决现有技术中岩层过硬、岩石钻孔内扩大头难以施工而导致的岩石锚索无法应用的缺陷，实现了无需施工岩石钻孔底部扩大头且无需注浆的锚索无粘结锚固。
Rock anchor cable self-locking anchor plate structure and mounting method
一种岩石锚索自锁锚板结构及安装方法
PENG WENBING (author) / QIU KEYI (author)
2024-01-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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