Large-tonnage combination anchoring system and method for rocky slope

A large-tonnage, anchoring technology, which is applied in arch bridges, buildings, bridge construction, etc., can solve problems such as high construction risk, difficult foundation pit excavation, and difficult anchorage layout, so as to achieve clear force, convenient installation and disassembly, and The effect of clear force transmission path

Active Publication Date: 2013-11-20
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, under unfavorable terrain conditions such as steep rock slopes in mountains or canyons, when concrete anchorage is used, it is difficult to arrange large-volume anchorage, excavate foundation pits, and construction risks are high

Method used

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  • Large-tonnage combination anchoring system and method for rocky slope
  • Large-tonnage combination anchoring system and method for rocky slope
  • Large-tonnage combination anchoring system and method for rocky slope

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 As shown, the present invention is applicable to a large-tonnage combined anchoring system for steep rock slopes, and is connected to one end of the back cable 1 to provide the anchoring position and anchoring reaction force for the back cable 1 . The other end of the back rope 1 is a tension end, which can be arranged on the main structure 2, or on the temporary structure 3 at the top of the main structure 2. In this embodiment, the tension end of the back rope 1 is arranged on On the main structure 2. The tension end of the buckle cable 4 corresponding to the back cable 1 is also arranged on the main structure 2 or on the temporary structure 3 , and the anchoring end of the buckle cable 4 is arranged on the arch rib structure 5 . The vertical component force generated by the arch rib structure 5 is balanced by tensi...

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Abstract

The invention discloses a large-tonnage combination anchoring system and method for a rocky slope and relates to the field of bridge construction. The large-tonnage combination anchoring system comprises at least one vertical distribution beam, a plurality of transverse distribution beams and a plurality of bundles of longitudinal prestress anchorage cables, wherein the vertical distribution beam is arranged along the rocky slope, the lower part of the vertical distribution beam is close to a rock surface, and the upper part of the vertical distribution beam is anchored with a backstay; the plurality of transverse distribution beams are fixed above the vertical distribution beam; one end of each bundle of longitudinal prestress anchorage cable extends into a rock body and is anchored, and the other end of the each bundle of the prestress anchorage cable is anchored to the transverse distribution beams via an anchorage; each bundle of the longitudinal prestress anchorage cable is vertical to the transverse distribution beam; the tail end of the longitudinal distribution beam is connected with a small distribution beam, and a cushion layer. According to the system and the method, under conditions of rocky slope and the like, large-tonnage anchoring force is provided for stay cables, dig engineering quantity is effectively decreased, and construction difficulty and construction risks are lowered.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a large-tonnage combined anchoring system and method suitable for steep rock slopes. Background technique [0002] Usually, when an arch bridge is constructed using the cable-stayed buckle-hanging method, the anchorage end of the buckle cable is generally arranged on the arch rib of the arch bridge, and the anchorage end of the back cable (also called the anchor cable) is generally arranged on the anchorage structure. The tension end of the anchor cable is generally set on the main structure or temporary structure. [0003] Among them, the common anchor structures include pile anchors, gravity anchors, and prestressed anchors. Under adverse terrain conditions such as steep rock slopes, when pile anchors or gravity anchors are used for anchorage, the amount of excavation is large, and it is difficult for mechanical equipment to enter the site, making construction extremely diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/14E01D21/00E01D4/00
Inventor 李军堂王东辉陈治任许佳平田继开梁伟刘玲晶石九州陈明辰
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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