Tunnel anchor cable saddle swinging and moving installation construction method under limited space condition

Abstract

The invention discloses a tunnel anchor splay cable saddle swing mounting construction method under a limited space condition, which comprises the following steps of: marking a splay cable saddle vertical hoisting point right below a hoisting starting end of a gantry system, and then fixing a traction winch on a road surface; the splay cable saddle body is placed at the tail of a flat car, and the flat car backs up to enter a hoisting area; then the splay cable saddle body is completely hoisted away under the assistance of the traction winch; the splay cable saddle body is lifted to a certain height under the traction of a connecting rope of the vertical hoisting winch, then the traction winch is started, and the splay cable saddle body swings downwards until the splay cable saddle body safely touches the ground; and S4 is repeated, and the splay cable saddle body is gradually swung to the splay cable saddle vertical lifting point. The splay cable saddle has the effect that the splay cable saddle body can be conveniently and stably moved to a splay cable saddle vertical lifting point.

Description

technical field [0001] The invention relates to the technical field of tunnel anchor construction in construction engineering, in particular to a method for installation and installation of tunnel anchor loose cable saddle swinging under the condition of limited space. Background technique [0002] With the construction of transportation infrastructure projects successively, the characteristics of suspension bridges such as low material consumption, light weight, and strong ability to adapt to complex terrain and geological conditions are highlighted in bridges of various systems. The main load-bearing components of suspension bridges are the main cables. The anchorage reliability on the anchorage is usually achieved by expanding the anchorage area of ​​the main cable. Generally, the main cable is divided into several divergent strands by using a loose cable saddle, and each strand is anchored on the anchorage respectively. Many suspension bridge anchorage systems are design...

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that there are the following defects: in the actual construction process, due to the narrow and steep mountain roads, and the large size of the flatbed truck, it cannot be smoothly moved directly under the gantry system under the condition of limited space, resulting in Scatter saddles are difficult and inefficient to lift, so there is still room for improvement

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