Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-unlocking post-tensioning pre-stressed anchor cable and construction method thereof
The invention provides a self-unlocking post-tensioning pre-stressed anchor cable and a construction method thereof. The self-unlocking post-tensioning pre-stressed anchor cable comprises an exposed end anchoring structure, and a pre-stressed pipeline, a built-in end anchoring structure, an anchoring sleeve and a pre-stressed steel beam which are positioned underground. The built-in end anchoring structure comprises an anchor plate and a tooth-shaped anchoring buckle on the outer edge of the anchor plate. A plurality of prestressed steel beam holes are formed in the middle of the anchor plate, and prestressed steel beams are clamped and fixed in the anchor plate through clamping pieces. The anchoring sleeve comprises a guide section, an anchoring pressure-bearing section, an unlocking guide rail section and a locking guide rail section; a movable unlocking guide rail which is in a slope shape and leads to the unlocking groove is arranged at the bottom of the locking groove. A slope-shaped fixed locking guide rail leading to the locking groove is arranged at the bottom of the unlocking groove. The device is simple in structure and low in cost, the prestressed steel beams and the built-in end anchoring structure can be repeatedly used, and economic benefits are obvious. During construction, a tensioning construction working face does not need to be arranged underground, construction is convenient, and the application problem of the pre-stressed anchor cable in underground engineering is solved.
本发明提供了一种可自解锁的后张拉预应力锚索及其施工方法，包括外露端锚固结构，以及位于地下的预应力管道、内置端锚固结构、锚固套筒和预应力钢束。内置端锚固结构包括锚板及其外边缘的齿形锚固卡扣；锚板中部设数个预应力钢束孔，预应力钢束通过夹片卡固在锚板中。锚固套筒包括引导段、锚固承压段、解锁导轨段及锁定导轨段；锁定槽底部设有呈斜坡状的通向解锁槽的活动式解锁导轨。解锁槽底部设有呈斜坡状的通向锁定槽的固定式锁定导轨。本发明构造简单，成本低，且预应力钢束及内置端锚固结构可重复利用，经济效益明显。施工时，无需在地下设置张拉施工作业面，施工方便，解决了预应力锚索在地下工程中的应用问题。
Self-unlocking post-tensioning pre-stressed anchor cable and construction method thereof
The invention provides a self-unlocking post-tensioning pre-stressed anchor cable and a construction method thereof. The self-unlocking post-tensioning pre-stressed anchor cable comprises an exposed end anchoring structure, and a pre-stressed pipeline, a built-in end anchoring structure, an anchoring sleeve and a pre-stressed steel beam which are positioned underground. The built-in end anchoring structure comprises an anchor plate and a tooth-shaped anchoring buckle on the outer edge of the anchor plate. A plurality of prestressed steel beam holes are formed in the middle of the anchor plate, and prestressed steel beams are clamped and fixed in the anchor plate through clamping pieces. The anchoring sleeve comprises a guide section, an anchoring pressure-bearing section, an unlocking guide rail section and a locking guide rail section; a movable unlocking guide rail which is in a slope shape and leads to the unlocking groove is arranged at the bottom of the locking groove. A slope-shaped fixed locking guide rail leading to the locking groove is arranged at the bottom of the unlocking groove. The device is simple in structure and low in cost, the prestressed steel beams and the built-in end anchoring structure can be repeatedly used, and economic benefits are obvious. During construction, a tensioning construction working face does not need to be arranged underground, construction is convenient, and the application problem of the pre-stressed anchor cable in underground engineering is solved.
本发明提供了一种可自解锁的后张拉预应力锚索及其施工方法，包括外露端锚固结构，以及位于地下的预应力管道、内置端锚固结构、锚固套筒和预应力钢束。内置端锚固结构包括锚板及其外边缘的齿形锚固卡扣；锚板中部设数个预应力钢束孔，预应力钢束通过夹片卡固在锚板中。锚固套筒包括引导段、锚固承压段、解锁导轨段及锁定导轨段；锁定槽底部设有呈斜坡状的通向解锁槽的活动式解锁导轨。解锁槽底部设有呈斜坡状的通向锁定槽的固定式锁定导轨。本发明构造简单，成本低，且预应力钢束及内置端锚固结构可重复利用，经济效益明显。施工时，无需在地下设置张拉施工作业面，施工方便，解决了预应力锚索在地下工程中的应用问题。
Self-unlocking post-tensioning pre-stressed anchor cable and construction method thereof
一种可自解锁的后张拉预应力锚索及其施工方法
CAO SHIDING (Autor:in) / ZHU JUN (Autor:in) / WANG ZHIXIN (Autor:in)
12.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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