JPH07238777A - Lining and execution method thereof and execution facility thereof - Google Patents

Abstract

PURPOSE:To conduct the lining of a shaft easily. CONSTITUTION:A segment 51, in which a hollow section 51a is formed, is carried up to a shaft 101 by a hoist 2 while excavating the shaft 101, the segment 51 is gripped by a gripper 10, and an expansion jack is turned by a motor 11, a bearing arm 9 is elongated by the expansion jack, and a lifting and lowering body 5 is lowered by the lifting jack 6, thus mounting the segment 51 on a specified lining molding equipment 12. The process is repeated, the segments 51 are assembled so as to be formed in an annular shape along the periphery of a pit mouth 102, and the annular-shaped segments 51 are fed into the shaft 101 by the lining molding equipment 12. A series of these operation are repeated, thus carrying out a lining on a pit wall 103.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining for a vertical shaft and the like, a construction method thereof, and construction equipment therefor.

[0002]

2. Description of the Related Art When a vertical shaft is provided on the ground, conventionally, after excavating the ground, a cylindrical lining is inserted and mortar is placed between the lining and the pit wall to drain the mud water inside the lining. Was.

[0003]

When the vertical shaft is provided by the above-mentioned method, there are the following problems. Since the lining is very large, it not only requires a great deal of labor to transfer the lining, but also it takes a lot of time to insert it into the vertical shaft. When the ground is weak, it is necessary to perform work such as fixing the ground around the shaft, which is very troublesome. Since each process is carried out independently, the construction period becomes very long.

[0004]

In order to solve the above-mentioned problems, the lining according to the present invention comprises a segment having a hollow portion formed therein.

Further, a lining construction method is constituted by excavating a vertical shaft and at the same time providing a segment in which a hollow portion is formed inside the vertical wall of the vertical shaft while assembling and lining the vertical wall. .

[0006] Further, a transporting device for transporting the segment, which is provided on the gantry and has a hollow portion formed therein, above the pit of the vertical shaft, and a transport device provided on the gantry so as to be above the pit, A lining assembly device that grips the segment so as to receive the segment and swivels along the peripheral edge of the wellhead, moves in the radial direction of the wellhead, and can move up and down, and the lining provided along the peripheral edge of the wellhead. The lining construction equipment is configured to include a lining forming device that holds the segment to receive the segment from the assembly device and sends the segment to the inside of the shaft so as to perform lining on the shaft wall of the shaft. .

[0007]

In the lining having the above-described structure, the lining is composed of the segment having the hollow portion formed therein, so that the lining can be divided and assembled, and the specific gravity of the segment is reduced. Therefore, not only the segment can be easily transported, but also the segment can be easily inserted into the water.

Further, in the lining construction equipment having the above-mentioned construction, since the lining is constructed on the pit wall while excavating the shaft, the construction period is shortened and the ground around the pit for stabilizing the pit wall is shortened. No need for work such as fixing

Further, in the lining construction method having the above-mentioned structure, the transport device transports the segment above the shaft hole of the shaft, the lining assembly device receives the segment, and the segment is delivered to a predetermined position of the lining molding device. By repeating this, the segments are assembled in an annular shape along the periphery of the wellhead, and this is fed into the shaft by the lining molding device. By repeating these series of operations, the lining is constructed on the shaft wall of the vertical shaft.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a lining according to the present invention is shown in FIG.
It will be described based on 2. 1 is an external view of the segment, and FIG. 2 is a sectional view taken along the line II-II of FIG.

As shown in FIG. 2, inside the plate-shaped segment 51 curved so as to warp in the direction connecting the one side and the other side as shown in FIG. 1, that is, in the horizontal direction in FIG. A hollow portion 51a is formed at the bottom.

Therefore, the segment 51 has a low specific gravity.

An embodiment of a lining construction facility using such a segment will be described with reference to FIGS.
Note that FIG. 3 is a schematic configuration diagram thereof, FIG. 4 is an enlarged enlarged view of a main portion thereof, and FIG.

As shown in FIG. 3, a pedestal 21 is provided on the ground 100. A housing 31 is provided on the frame 21. Inside the housing 31, there is provided a drive device 32 whose axis is oriented in the vertical direction.
The rotary shaft 33 of the drive device 32 has a tubular shape. A cutter head 34 is provided on the tip side of the rotating shaft 33. A cutter 35 is provided on the front surface of the cutter head 34. An enlarged diameter cutter 36 is provided on the peripheral edge of the front surface of the cutter head 34 so that the diameter of the vertical shaft 101 can be enlarged. A discharge pipe 37 for discharging earth and sand is connected to the rotation shaft 33 near the drive device 32 so as to be slidable with respect to the rotation shaft 33 in a direction of an axis intersecting with the axis of the rotation shaft 33. A pump 38 is connected to the discharge pipe 37.

Therefore, when the drive device 32 is driven, the cutter head 34 rotates, excavates the ground 100, and pumps 3
By driving 8
After that, it is discharged from the discharge pipe 37 to the outside. As a result, the shaft 101 is formed on the ground 100.

The pedestal 21 is provided with a rail 1 which connects the outside of the pedestal 21 and the vicinity of the rotary shaft 33. The rail 1 is provided with a hoist 2 which is capable of self-propelled along the rail 1. Segment 5 on hoist 2
A hook 2a for holding 1 is provided so as to be able to move up and down.

Therefore, the hoist 2 conveys the segment 51 to the vicinity of the rotary shaft 33.

Incidentally, the rail 1, the hoist 2, and the like form a carrier device in this embodiment.

As shown in FIG. 4, a tubular guide pipe 3 is vertically installed on the pedestal 21 so as to surround the rotary shaft 33 in a coaxial manner. On the outer side of the guide pipe 3 of the gantry 21, a cylindrical frame 4 is vertically installed so as to be coaxial with the guide pipe 3. An elevating body 5 capable of ascending and descending along the guide pipe 3 is fitted on the outer peripheral surface of the guide pipe 3. A flange portion 5 a is formed on the lifting body 5. The flange portion 5a of the lifting body 5 has a frame 4
The tip end side of the lifting jack 6 provided in the is attached.

Therefore, by driving the lifting jack 6, the lifting body 5 moves up and down.

As shown in FIG. 5, on the outer periphery of the lifting body 5,
The bearing 7 is fitted. The outer ring of the bearing 7 has a rotating shaft 33.
Two telescopic jacks 8 for moving the moving arm 8a in a direction intersecting with the axis of are provided so as to be line-symmetric with respect to a line passing through the axis of the rotating shaft 33. The ends of the support arms 9 that are bent in a concave shape are connected to the tip ends of the moving arms 8a of the telescopic jacks 8. A gripping device 10 that grips the segment 51 is provided on the distal end side of the support arm 9, that is, on the lower side in FIG. The flange portion 5 a of the lifting body 5 is provided with a motor 11 that rotates the lifting body 5 around the same axis as the rotation shaft 33.

Therefore, the driving of the motor 11 causes the gripping device 10 to rotate about the same axis as the rotation shaft 33, and the driving of the telescopic jack 8 causes the gripping device 1 to rotate.
0 moves along the radial direction of the rotary shaft 33.

The guide pipe 3, the frame 4, the lifting body 5, the jack 6, the bearing 7, the telescopic jack 8, the support arm 9, the gripping device 10, the motor 11 and the like constitute a lining assembly device in this embodiment. I am doing it.

As shown in FIG. 4, the mouth 10 of the stand 101 is shown.
Hold the segment 51 along the periphery of 2,
A plurality of lining forming devices 12 that can expand and contract in the vertical direction are provided at predetermined intervals.

Therefore, the lining molding device 12 applies the lining to the anti-wall 103 of the vertical shaft 101 by feeding the held segment 51 downward.
In the figure, 22 is a dolly and 104 is water.

An embodiment of a lining construction method using such a lining construction facility will be described below.

The segment 51 transported by the carriage 22 is picked up by the hook 2a of the hoist 2, moved along the rail 11, and transported to the vicinity of the gripping device 10. The segment 51 is grasped by the grasping device 10, the segment motor 51 is driven to rotate the segment 51 in the direction around the axis of the rotary shaft 33, and the telescopic jack 8 is driven to move the segment 51 radially outward of the rotary shaft 33. , Driving the lifting jack 6 lowers the segment 51,
Is attached to a predetermined lining molding device 12. By repeating this, the segment 51 is assembled so as to form an annular shape along the peripheral edge of the well 102. The segment 51 having an annular shape is fed into the pit 101 by the lining molding device 12 and provided on the pit 101 of the pit 101.

By repeating these series of operations,
An annular segment 51 is fed into the upright 101 to line the antiwall 103.

Therefore, by assembling the segment 51, the lining 101 is lined on the anti-wall 103 of the pit 101, so that the members required for the lining are very easily transported and the hollow portion 51a is formed in the segment 51. Is formed, the specific gravity of the segment 51 is reduced,
Insertion into the water 104 in the pit 101 is also very easy. As a result, it is possible to easily apply the lining to equipment having a small output.

Further, the anti-wall 1 is formed while forming the erecting 101.
Since 03 can be lined, the anti-wall 103
The work for fixing the ground 100 around the erecting shaft 101 for the purpose of stabilizing the work is not required, and the work is greatly simplified and the construction period can be greatly shortened.

[0031]

As described above, the lining according to the present invention, the construction method thereof and the construction equipment therefor can obtain the following effects. Since the lining consists of a segment with a hollow inside, the specific gravity of the segment and the lining is light, and the lining creates buoyancy due to the water in the pit, which makes the lining construction very easy and reduces the output of equipment. Can be installed at. Since the lining is constructed while excavating the pit, the work such as fixing the ground around the pit is unnecessary, the work is greatly simplified, and the construction period can be greatly shortened.

[Brief description of drawings]

1 is an external view of a segment of an embodiment of a lining according to the present invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a schematic configuration diagram of a lining construction facility according to the present invention.

FIG. 4 is an enlarged enlarged view of the main part.

5 is a cross-sectional view taken along the line VV of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rail 2 hoist 2a hook 3 guide pipe 4 frame 5 lifting body 6 lifting jack 7 bearing 8 expansion jack 10 gripping device 11 motor 12 lining molding device 21 mount 51 segment 51a hollow part 100 ground 101 stand upright 102 backwall 103 wall

Claims (3)

[Claims] 1. A lining comprising a segment having a hollow portion formed therein. 2. A lining construction method characterized by digging a vertical shaft and at the same time providing a segment in which a hollow portion is formed inside the vertical wall of the vertical shaft while assembling the segment and assembling the lining on the vertical wall. 3. A carrier device for transporting a segment, which is provided on a gantry and has a hollow portion formed therein, above a wellhead of a vertical shaft, and a carrier device provided on the gantry so as to be above the wellhead and from the carrier device A lining assembly device that grips the segment so as to receive the segment and swivels along the peripheral edge of the wellhead, moves in the radial direction of the wellhead, and is capable of moving up and down, and the lining provided along the peripheral edge of the wellhead. A lining construction device that holds the segment so as to receive the segment from the assembly device and sends the segment into the shaft so as to line the shaft wall of the shaft. .