JPS58120999A - Device for winding and erecting segment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a segment winding device that is assembled to the inner wall surface of a tunnel hole used in the mountain tunnel construction method.

In the conventional mountain road construction method, high-strength ground is constructed using a blasting method or a loading machine (therefore, excavation is carried out, and 8M of earth and sand is transported to the above ground using a trolley, but at this time, segments etc. are connected to turnbuckles, etc.). (I) If the diameter of the segment is large, the work is dangerous. (li) The assembly speed of the segment is very slow and the assembly accuracy is poor. was there.

The present invention was proposed in order to eliminate the manual assembly work of segments and eliminate the drawbacks of the conventional construction method. The device (a horizontal telescoping member supported rotatably around a horizontal axis; The present invention relates to a segment winding device characterized by the following.

Since the present invention is configured as described above, when attaching or removing segments to or from the inner wall surface of a tunnel hole, the truck is moved to a required position inside the tunnel hole, and then the rotating support mounted on the truck is The device is rotated at a required angle around the vertical axis, and the horizontal telescoping member supported by the rotation support device is expanded and contracted by a required length, and the horizontal expansion and contraction member is rotated at a required angle around the horizontal axis with respect to the rotation support device. The tip of the segment holding member supported by the tip of the horizontal telescoping member is made to directly face a required location on the inner wall surface of the tunnel hole by turning, and then the segment holding member is extended and the segment holding member is held by the segment holding portion at the tip of the member. Build the segment at a predetermined location, or
Alternatively, the segment is removed via the segment holding portion.

In this way (according to this proposal), the winding and unwinding of the segments will be done mechanically, and the manual assembly work of the segments will be eliminated, thereby improving work safety, speeding up segment assembly, and improving assembly accuracy. There are five things that can be improved, and it also makes it easier to install and unwind several types of segments with different diameters, shapes, widths, etc.

The present invention will be described below with reference to the illustrated embodiments.

(1) is a bogie that runs on the tunnel large circle (rails (2) laid), and the vertical support (4) erected on the frame (3) of the bogie (1) has bearings ( 5) D. The lower horizontal base (7) of the swivel bearing box/swing table (6) constituting the swivel support device is rotatably supported.
8) are running wheels of the truck (1). A hydraulic jack (9) is interposed between the base (7) and the frame (3) of the swing bearing box/swing table (6), and by expanding and contracting the jack (9), the swing bearing A box/swing table (6) is designed to rotate around a vertical axis.

The outer cylinder συ is inserted into the swivel bearing box and rocking table (6) through the slewing bearing (1) so that it can freely rotate around the horizontal axis, and the inner cylinder 0z of the outer cylinder 002 is extendable and retractable. The connection between the inner cylinder 02 and the outer cylinder 0υ (the interposed hydraulic jack 0
3 (therefore, the inner cylinder a3 is adapted to expand and contract with respect to the outer cylinder αυ. Also, a pinion 04 is disposed on the outer periphery of the end of the outer cylinder αυ), and (
Hydraulic jack Q! mounted on the base (7) of 6). 19
The rack attached to the (IQ and the same jack)
The rack ae and pinion 0 by expanding and contracting
4, the outer cylinder συ and the inner cylinder OQ rotate around the horizontal axis. The outer cylinder υ and the inner cylinder H constitute the horizontally expandable member.

A segment holding part outer cylinder αη is fixed to the tip of the inner cylinder az orthogonally thereto, and the outer cylinder (I7) VC is telescopically fitted with a cylinder α, and the inner cylinder H and the outer cylinder A hydraulic jack (1 (I) is interposed between the inner cylinder Q8 and the outer cylinder anrc. By expanding and contracting the jack 0, the inner cylinder Q8 can be expanded and contracted with respect to the outer cylinder anrc. At the tip of the inner cylinder A segment grip handle and segment supports C21) and extendable hydraulic jacks located on the left and right sides of the segment support Q1) are provided.

Note that both the inner and outer cylinders Q8αD constitute the segment holding member.

Further, an outrigger (c) and a hydraulic jack (to) for extending and contracting the outrigger are provided at the short end of the truck (1).

Since the illustrated device is configured as described above, when attaching or detaching the segments, move the trolley (1) to a predetermined position and operate the hydraulic jack 03 to move the horizontal telescopic member into place. Extend the cylinder to the specified position and extend and retract the hydraulic jack (9) to create a rotating bearing box and rocking table (6).
is rotated to a predetermined angle, and the hydraulic jack 08 is further expanded and contracted to rotate the outer cylinder Oυ together with the inner cylinder α2 to a predetermined angle, and the tip of the inner cylinder 08 of the segment holding portion is moved to a predetermined location on the inner wall surface of the tunnel hole. to face directly.

Next, the hydraulic jack (11) is extended to extend the inner cylinder α, and the segment grip (A) and the segment holding portion at the tip thereof (Ci'l) K: push the supported segment (E) into the tunnel hole. The segments (e) are either rolled up at predetermined locations on the wall surface or scattered through the segment grips (4) and segment supports Qυ.

If the segment (e) has a large diameter and is heavy, the hydraulic jack 04) is extended and the outrigger 123c is used to prevent the truck (1) from falling.

Note that the trolley (1) may be a self-propelled trolley such as a clotz tie; in this case, the horizontal telescoping member may be omitted;
A fixed boom may be used. Alternatively, the turntable mechanism may be used instead of allowing the cart (1) to move laterally in parallel with the front and back of the cart (1) as a base line. Furthermore, move the trolley (1) up and down again.
It may also have a left and right expandable structure.

Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view showing an embodiment of the segment winding device according to the present invention, and FIG. 2 is a cross-sectional view taken along the arrows in FIG. (1)--One truck, (6)--One swing bearing box and rocking table,
(9)--Hydraulic jack, aυ-m-outer cylinder, a'a-
--Inner cylinder, α3--Hydraulic jack, (14)---Pinio/, aS--Hydraulic jack, Han-11 Rack, Q
7)---Segment holding part outer cylinder, cod-m-inner cylinder, α9
-m-hydraulic jack, (4)-m-segment grip, Qυ-m-segment support, (2)-m-hydraulic jack

Claims (1)

[Claims] A swing support device mounted on a trolley that can freely rotate around a vertical axis, a horizontal telescoping member supported on the swing support device, and a tunnel cross section supported at the tip of the horizontal telescoping member. A segment winding device comprising a segment holding member that is radially expandable and has a segment holding portion at its tip.