JPH09177497A - Automatic lining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly carry out retaining lining of a shaft a section of which is non-round by using a mechanical means. SOLUTION: A winch 3 for lifting and a detector 4 for height measurement are fixed on an upper part frame 2 fixed on an upper part of a shaft 1 a section of which is roughly elliptical, each of trailing end parts of wire ropes 5 and wire bodies 6 is connected to a lift block 10, a hydraulic cylinder for lift block fixing 11 is fixed on an upper part of the lift block 10, and a head end part of a plunger 12 of this hydraulic cylinder 11 is provided so that it is made press contact with concrete 7 for lining after deposition. Thereafter, a hydraulic cylinder for circular arc formwork holding and a hydraulic cylinder for rectilinear formwork holding 17 are provided on a lower part of the lift block 10, and a linear formwork plate 9 arranged against a linear peripheral wall surface 22 of the shaft 1 is installed on a head end of a plunger 16 of the hydraulic cylinder for rectilinear formwork holding 17 of the inside of the circular arc formwork plate 19 and the fluid pressure cylinder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic lining device, for example, a foundation pile such as a mountain bridge, or an upright hole in a city area, especially a non-round upright hole (hereinafter referred to as a free-section upright hole). The present invention relates to an automatic lining device used when carrying out earth retaining lining of a vertical hole for constructing.

[0002]

2. Description of the Related Art Conventionally, a relatively small free-section vertical hole (for example, an oval hole having a cross section of an oval shape) is used for excavation and earth retaining lining by manpower, and there is no mechanized construction example.

[0003]

In a free-section vertical hole, the earth retaining lining using a lining material such as a liner plate by human power is difficult to work in a narrow vertical hole, and there is a problem in safety. .

From the above, there has been a demand for mechanization of the earth retaining lining, but in the conventional technique, especially in the vertical hole having a free cross section, a form plate is used on the peripheral wall surface of a non-perfect circle by mechanical means. It was difficult to arrange them smoothly, and it was difficult to machine them.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide an automatic lining device by machine construction which can reduce the work of retaining the earth in the vertical cross-section hole and improve the safety.

[0006]

In order to achieve the above object, an automatic lining device according to the present invention comprises an upper frame 2 fixed to the upper portion of an upright hole 1 having a cross section of a substantially elliptical shape, which is lifted and lowered. The hoisting machine 3 and the height measuring detector 4 are fixed, and the wire rope 5 and the strip 6 are respectively drawn from the lifting hoisting machine 3 and the height measuring detector 4. The end portion is connected to the elevating block 10, and the elevating block fixing fluid pressure cylinder 11 is fixed to the upper part of the elevating block 10, and the tip of the plunger 12 of the fluid pressure cylinder 11 is used for lining concrete 7 after the casting. And a linear form-holding fluid having plungers 14 and 16 and an arc-shaped form-holding fluid pressure cylinder 15 having a plunger 13 telescopically expanding and contracting at a lower portion of the elevating block 10. Pressure And a connecting shaft 20 for connecting the arc-shaped frame plates 19 arranged in pairs to the arc-shaped peripheral wall surface 18 of the vertical hole 1 at the tip of the plunger 13 of the fluid pressure cylinder 15. A lock arm 21 is formed between the inside of each arc-shaped form plate 19 and the elevating block 10 by a lock arm 21 composed of first and second bending arms 21a and 21b having intermediate portions connected by a connecting shaft 36. The linear form plate plate 9 is attached to the tip of the plunger 16 of the linear form holding fluid pressure cylinder 17 so as to be opposed to the linear peripheral wall surface 22 of the vertical hole 1. . Further, in the automatic lining device according to the present invention, the lifting frame 3 and the height measuring detector 4 are mounted on the upper frame 2 fixed to the upper part of the vertical hole 1 having a substantially oval cross section.
And the wire rope 5 respectively fed from the lifting hoisting machine 3 and the height measuring detector 4 and the respective hanging lower end portions of the strip 6 are connected to the lifting block 10, and the lifting block. An elevating block fixing fluid pressure cylinder 11 is fixed to an upper part of the elevating block 10, and a tip end of a plunger 12 of the fluid pressure cylinder 11 is provided so as to be pressed against the lining concrete 7 after the placing. An arcuate form-holding fluid pressure cylinder 15 having telescopically expanding first and second stage plungers 13 and 14 and a linear form-holding fluid pressure cylinder 17 having a plunger 16 are provided in the lower part of 10. , An arc-shaped peripheral wall surface 18 of the upright hole 1 at the tip of the second-stage plunger 14 of the fluid pressure cylinder 15.
A connecting shaft 20 for connecting arcuate mold plate plates 19 arranged in a pair opposite to each other is attached, and the inside of each arcuate mold plate plate 19 and the first-stage plunger 13 are connected via a pivot shaft. A linear form plate 9 which is connected to the lock arm 21 and which is disposed opposite to the linear peripheral wall surface 22 of the vertical hole 1 is attached to the tip of the plunger 16 of the linear form holding fluid pressure cylinder 17. And Further, a position display target 42 is provided at the upper center position of the lifting block 10, and the position display target 42 is provided on the upper frame 2.
It is advisable to fix the position measuring device 41 for measuring the deviation for looking into. Further, the lifting block attitude control fluid pressure cylinder 3 in which the plunger 33 is expanded and contracted downward in the lifting block 10 so that the tip end can be in contact with the bottom of the upright hole 1 when extended.
4 should be provided.

Further, at the intermediate position of the linear form-holding fluid pressure cylinders 17 arranged at intervals, the tip of the plunger 55 presses the inner surface of the linear form plate 9 against the elevating block 10. It is advisable to provide a fluid pressure cylinder 54 for preventing the bending of the linear form.

According to the present invention, the lifting block fixing fluid pressure cylinder 11 is extended to fix the lifting block 10 in the upright hole 1 having a substantially oval cross section, and the arc-shaped mold holding fluid pressure is applied. Using the cylinder 15 and the linear form-holding fluid pressure cylinder 17, the arc form plate 19 and the line form plate 9 are arranged so as to face the arc-shaped peripheral wall surface 18 and the linear peripheral wall surface 22 of the vertical hole 1. It is possible to place the concrete for lining on the peripheral wall surface of the upright hole 1 for smooth lining and to easily remove the mold.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to the drawings. 1 to 16, in the central portion of the upper frame 2, a position measuring instrument 41, which is a hyperoscope for looking into the position display target 42 fixed to the central upper portion of the elevating block 10, is provided with a V-shaped support frame. Two
3 is fixed. Further, the position measuring device 41
A visual or monitoring device 24 is connected to the.

A steel cylinder 2 having a low height is provided at the upper end of the upright hole 1.
5, the concrete member 26 is placed outside the steel cylindrical body 25, and the jacks 27 for supporting the upper frame 2 are attached to the four corners of the upper frame 2, and the jack 27 is made of the concrete. It is installed on the member 6.

The upper portions of the four support ropes 28 are connected to the four corners of the upper frame 2, and the upper portions of the respective support ropes 28 are hung by the lower hooks 31 of the crane 30 via locking rings 29. The upper frame 2 thus lifted by the crane 30 via the support ropes 28 is placed on the ground 32 on the ground where the vertical holes 1 have been excavated.

An upper frame 2 fixed to the upper part of the upright hole 1.
A plurality of lifting hoisting machines 3 and a plurality of height measuring detectors 4
And a fixed lower end of a plurality of wire ropes 5 fed from the drums of the plurality of hoisting and hoisting machines 3, and a lower end of a strip 6 fed from the height measuring detector 4. Is connected to the elevating block 10, and the elevating block 10 moves up and down inside the upright hole 1.

As shown in FIG. 7, the vertical hole 1 has a substantially oval cross section, and both ends in the longitudinal direction thereof are arcuate peripheral wall surfaces 18, and both widthwise sides thereof are linear peripheral wall surfaces 22. The elevating block 10 has a substantially rectangular shape in a plane and is arranged in the center of the upright hole 1 to movably hold a mold plate for earth retaining lining (described later). An elevating block body 10a having a part opening 35,
It is composed of a fixed holding frame 10b integrally fixed to both ends of the block body.

The formwork plates are arranged so as to face each other along the inner peripheral wall of the upright hole 1 when the lining concrete 7 is placed on the inner peripheral wall of the upright hole 1. 1 is similar to the cross-sectional shape, and in the present invention, this form plate is
It is divided into a plurality of parts and is provided on the lifting block 10 so as to be able to move forward and backward by a movable holding means.

That is, the form plates arranged along the two arc-shaped peripheral wall surfaces 18 at both ends of the upright hole 1 are rotated by the connecting shafts 20 inserted into the shaft holes 51 of the respective connecting ear pieces 39. It is composed of arc-shaped frame plates 19 which are freely connected to form a pair and are provided in two sets on the left and right.
The form frame plate arranged along one linear peripheral wall surface 22 is composed of two linear form frame plates 9.

Each of the form plates is movably held by the elevating block 10. As a movable holding means for the left and right two sets of arc-shaped form plates 19, a two-stage extension type arc-shaped form holding fluid is provided in circular holes 37 formed in fixed holding frames 10b at both longitudinal ends of the elevating block 10. A pressure cylinder 15 is inserted and fixed, and a plunger 13 is telescopically provided in a telescopic manner with respect to the fluid pressure cylinder 15. A pair of arc-shaped frame plates 19 are rotatably connected to the tip of the plunger 13. Connecting shaft 20
Is installed.

Further, at a substantially middle position inside each arcuate frame plate 19, one end of the lock arm 21 formed by connecting the first bending arm 21a and the second bending arm 21b by the connecting shaft 36, that is, the second bending arm 21b. The end of the arm 21b is pivotally connected by a support shaft 38, and the first bending arm 2
The other end of 1a is pivotally connected to the end of the fixed holding frame 10b of the lifting block 10 by a support shaft 40.

Next, as movable holding means for the two linear form plates 9, two stages of linear molds are provided in circular holes 43 formed on both sides of the lifting block body 10a and the fixed holding frame 10b. The frame-holding fluid pressure cylinder 17 is inserted and fixed, and the first-stage plunger 14 and the second-stage plunger 16 are telescopically extendable and retractable with respect to the fluid-pressure cylinder 17, and the tip of the second-stage plunger 16 is It is fixed to the linear form plate 9. Of the three fluid pressure cylinders 17 on one side, the fluid pressure cylinder 17 located in the middle portion also functions as a linear form deflection preventing fluid pressure cylinder, and the tip of the second stage plunger 16 thereof has a linear form frame. By pressing the inner surface of the middle portion of the plate 9, the linear form plate 9 does not bend inward under the pressure of the concrete when the lining concrete 7 is placed.

Further, the base end portion of the lifting block fixing fluid pressure cylinder 11 is inserted and fixed in the fitting hole 44 of the holding body 48 formed in the upper portion of the fixed holding frame 10b. An elastic member 52 made of a rubber material is fixed to the tip of the plunger 12. Therefore, on both sides of the lifting block 10, the plungers 12 of the four lifting block fixing fluid pressure cylinders 11 are extended, and the elastic members 52 at the ends thereof are connected to the straight peripheral wall surface 2 of the vertical hole 1.
By pushing it against 2, the lifting block 10 is moved to the vertical hole 1
Fixed in the center of.

Further, in the lower portion of the fixed holding frame 10b, two circular holes 45 are formed in the vertical direction, two in each of the left and right, and a total of four circular holes 45 are formed. Inserted and fixed, its plunger 33
Is provided so that it can project downward.

The central opening 35 of the lifting block 10 is shown.
Is provided as a work hole for fixing various members to the elevating block 10. Therefore, when these operations are completed, the upper portion of the central opening 35 is closed by, for example, the lid plate 49, and the lid plate 49 is moved to the lifting block 1
It is preferable that the position display target 42 is fixed to the upper surface of 0 and the above-described position display target 42 is attached to the upper surface of the lid plate 49.

Next, the operation of the apparatus of the present invention will be described. By controlling the hoisting machine 3 for elevating and lowering, the elevating block 10 suspended by the wire rope 5 is lowered to a height position slightly higher than the position where it is grounded to the bottom of the vertical hole 1. Subsequently, by controlling the elevation block attitude control fluid pressure cylinder 34, the plunger 33 is projected downward, and the tip of the plunger 33 is grounded to the bottom surface 1a of the uneven hole 1 to make the attitude of the elevation block 10 horizontal. Hold on.

Then, the fluid pressure cylinder 11 for fixing the lifting block is controlled to extend the plunger 12 thereof,
The elastic member 52 at the tip end is brought into pressure contact with the linear peripheral wall surface 22 of the upright hole 1, thereby fixing the elevating block 10 to the central portion of the upright hole 1.

When pressing the respective arcuate form plate 19 and the respective lower flanges 46 of the linear form plate 9 against the arcuate peripheral wall surface 18 and the straight peripheral wall surface 22 of the vertical hole 1, the arcuate mold frame 19 is pressed. The plunger 13 of the holding fluid pressure cylinder 15 is extended, and the first stage plunger 14 and the second stage plunger 16 of the linear form-holding fluid pressure cylinder 17 are extended to extend the lower flange 46 into the circle. The arc-shaped peripheral wall surface 18 and the linear peripheral wall surface 22 are pressed against each other. In this state, after placing the primary lining concrete 7 between the lower flange 46, each of the mold plates 19 and 9 and the peripheral wall surface of the vertical hole 1, after the lining concrete 7 is hardened. The arc-shaped and linear form plate plates 19 and 9 are removed from the lining concrete 7. When placing the secondary lining concrete 8 on the primary lining concrete 7, the next concrete placing operation is waited for the primary lining concrete 7 to harden. Repeat.

In the above description, the arc-shaped and linear form plate plates 19 and 9 are joined at the inclined joint portion 47 as shown in FIGS. The central portion and both end portions of the side surface are pressed by the tips of the second-stage plungers 16 of the three linear form-holding fluid pressure cylinders 17, and the inner side surface middle portion of the arc-shaped form plate 19 is locked. Since it is supported via the arm 21, the linear form plate 9 and the arc form plate 19 do not bend inward by the concrete pressure when placing the concrete for lining, and the inclined joint portion 47 is used. No pouring concrete leaks from.

Next, a second embodiment of the present invention will be described with reference to the drawings. 17 to 30, in the central portion of the upper frame 2, a position measuring instrument 41, which is an endoscope for looking into the position display target 42 fixed to the central upper portion of the elevating block 10, is provided in a V-shaped support frame. It is fixed through 23. In addition, the position measuring device 41,
A visual or monitoring device 24 is connected.

A steel cylinder 2 having a low height at the upper end of the upright hole 1.
5, the concrete member 26 is placed outside the steel cylindrical body 25, and the jacks 27 for supporting the upper frame 2 are attached to the four corners of the upper frame 2, and the jack 27 is made of the concrete. It is installed on the member 26.

The upper portions of the four support ropes 28 are connected to the four corners of the upper frame 2, and the upper portions of the respective support ropes 28 are hung by the lower hooks 31 of the crane 30 via the locking rings 29. The upper frame 2 thus lifted by the crane 30 via the support rope 28 is placed on the ground 32 on which the vertical hole 1 has been excavated.

Upper frame 2 fixed to the upper part of the vertical hole 1
A plurality of lifting hoisting machines 3 and a plurality of height measuring detectors 4
And a fixed lower end of a plurality of wire ropes 5 fed from the drums of the plurality of hoisting and hoisting machines 3, and a lower end of a strip 6 fed from the height measuring detector 4. Is connected to the elevating block 10, and the elevating block 10 moves up and down inside the upright hole 1.

As shown in FIG. 23, the vertical hole 1 has a substantially oval cross section, and both ends in the longitudinal direction thereof are arcuate peripheral wall surfaces 18.
The widthwise sides are straight peripheral wall surfaces 22.
The elevating block 10 is arranged at the center of the vertical hole 1 and movably holds a mold plate for earth retaining lining (described later). The elevating block 10 is constructed by assembling a metal plate into a three-dimensional frame shape, The lifting block body 10a is formed with a central opening 35 that opens in the direction, and side holding blocks 10b integrally fixed to both side surfaces of the lifting block body 10a.

The formwork plates are arranged so as to face each other along the inner peripheral wall of the upright hole 1 when the lining concrete 7 is placed on the inner wall of the upright hole 1. In the present invention, the mold plate is divided into a plurality of parts, and each of the divided mold plates is provided so as to be movable forward and backward by the movable holding means.

That is, the form plate arranged along the two arcuate peripheral wall surfaces 18 at both ends of the upright hole 1 is the shaft hole 51 of each connecting ear piece 39 (shown in FIGS. 28 and 29).
, Which are rotatably connected to each other by a connecting shaft 20 to be inserted into a pair, and are constituted by two sets of left and right arc-shaped form plates 19. In addition, the two straight peripheral wall surfaces 22 of the vertical hole 1
The mold plate arranged along the line is composed of two linear mold plates 9.

Each of the form plates is movably held by the elevating block 10. As a movable holding means for the two sets of left and right arcuate form plates 19, a circular hole 37 formed in the lower longitudinal direction of each of the left and right side holding blocks 10b is used to hold the arcuate formwork of two-stage extension type. A fluid pressure cylinder 15 is inserted and fixed, and a first stage plunger (which also serves as a fluid pressure cylinder) 13a and a second stage plunger 13b are telescopically provided to the fluid pressure cylinder 15 in a telescopic manner. A connecting shaft 20 for rotatably connecting a pair of arc-shaped frame plates 19 is attached to the tip of the second-stage plunger 14.

Further, one end of the lock arm 21 is pivotally connected by a support shaft 38 to a position closer to the tip than the middle of the inside of each arc-shaped form plate 19, and the other end of each lock arm 21 is The spindle 4 is attached to the tip of the first-stage plunger 13a.
Centralized by 0.

Next, as a movable holding means for the two linear form plate 9, the linear form holding fluid is provided in the circular holes 43 formed in the lower portions of the side holding blocks 10b on both sides of the elevating block 10. The pressure cylinder 17 is inserted and fixed, and both ends of the linear form plate 9 are fixed to the tip of the plunger 16a. Further, a linear frame flexure preventing fluid pressure cylinder 54 is provided in circular holes 53 formed in the lower portions of both sides of the elevating block body 10a, and the tip of the plunger 55 of the hydraulic cylinder 54 prevents the inner surface of the linear frame plate 9 from moving. When pressed, the linear form plate 9 does not bend inward under the pressure of the concrete when the lining concrete 7 is placed.

Further, the base end portions of the lifting block fixing fluid pressure cylinders 11 are fixed by welding to both upper sides of the side portion holding blocks 10b, and the tip end portion of the plunger 12 of the fluid pressure cylinders 11 is made of rubber material. The elastic member 52 is fixed. Therefore, by extending the plungers 12 of the total four lifting block fixing fluid pressure cylinders 11 on both sides of the lifting block 10 and pressing the elastic member 12 at the tip thereof against the linear peripheral wall surface 22 of the vertical hole 1, The elevating block 10 is firmly fixed to the center of the vertical hole 1.

Further, in the lower part of the left and right side holding blocks 10b, two circular holes 45 are provided in the vertical direction, two for the left and the right, for a total of 4 holes.
The lifting block posture control fluid pressure cylinder 34 is inserted and fixed in the circular hole 45, and the plunger 33 thereof is provided so as to project downward.

The central opening 35 (see FIG. 20) of the elevating block body 10a is provided as a working hole for inserting and fixing the straight formwork flexure preventing cylinder 54 into the circular hole 53. Therefore, when these operations are completed, the upper portion of the central opening 35 is, for example, the lid plate 49.
Then, the lid plate 49 is fixed to the upper surface of the lifting block body 10a, and the position display target 42 described above is attached to the upper surface of the lid plate 49.

Next, the operation of the device of the present invention will be described. By controlling the hoisting machine 3 for elevating and lowering, the elevating block 10 suspended by the wire rope 5 is lowered to a height position slightly higher than the position where it is grounded to the bottom of the vertical hole 1. Subsequently, by controlling the elevation block attitude control fluid pressure cylinder 34, the plunger 33 is projected downward, and the tip of the plunger 33 is grounded to the bottom surface 1a of the uneven hole 1 to make the attitude of the elevation block 10 horizontal. Hold on.

Subsequently, the lifting block fixing fluid pressure cylinder 11 is controlled to extend the plunger 12 thereof,
The elastic member 52 at the tip end is brought into pressure contact with the linear peripheral wall surface 22 of the upright hole 1, thereby fixing the elevating block 10 to the central portion of the upright hole 1.

When pressing the arc-shaped mold plates 19 and the respective lower flanges 46 of the linear mold plates 9 against the arc-shaped peripheral wall surfaces 18 and the linear peripheral wall surfaces 22 of the vertical hole 1, the arc-shaped mold plates 19 are used. The first-stage plunger 13a and the second-stage plunger 13b of the holding fluid pressure cylinder 15 are extended, and the plunger 16a of the linear form-holding fluid pressure cylinder 17 is extended so that the lower flange 46 is formed in the arc shape. The peripheral wall surface 18 and the linear peripheral wall surface 22 are pressed against each other. In this state, after placing the primary lining concrete 7 between the lower flange 46, each of the mold plates 19 and 9 and the peripheral wall surface of the vertical hole 1, after the lining concrete 7 is hardened. The arc-shaped and linear form plate plates 19 and 9 are removed from the lining concrete 7. In addition, on the primary lining concrete 7, the secondary lining concrete 8
When pouring, the second lining concrete is poured after waiting for the hardening of the first lining concrete 7.

In the above, the arc-shaped mold plate 19 and the linear mold plate 9 are released from the mold by the arc-shaped mold holding fluid pressure cylinder 15 and the straight-shaped mold holding fluid pressure cylinder 17.
The contracting operation of (1) causes the mold to be retreated to the position shown in FIG.

Further, in the above description, the arc-shaped and linear form plate plates 19 and 9 are joined at the inclined joint portion 47 as shown in FIGS. 23 and 24, and the linear form plate plate 9 is used. Is pressed by the tip of the plunger 55 of the linear form-deflection-deflection fluid pressure cylinder 54, and the inner surface of the middle part of the arc-shaped form plate 19 is held by the arc-shaped form-holding fluid cylinder 15. First stage plunger 13
Since it is pushed through the lock arm 21 by a, the linear form plate 9 and the arc-shaped form plate 19 do not bend inward by the concrete pressure at the time of placing concrete for lining, and The poured concrete does not leak from the inclined joint portion 47.

[0044]

As described above, according to the present invention,
In the vertical hole 1 having a substantially oval cross section, the lifting block fixing fluid pressure cylinder 11 is extended to fix the lifting block 10 to the central portion in the vertical hole 1 and also to hold the arc-shaped mold holding fluid pressure. Using the cylinder 15 and the linear form-holding fluid pressure cylinder 17, the arc-shaped form plate 19 and the linear form plate 9 are opposed to the arc-shaped peripheral wall surface 18 and the linear peripheral wall surface 22 of the vertical hole 1. It is arranged, and the lining concrete is cast to smoothly cover the peripheral wall surface of the vertical hole 1, and the demolding can be performed easily. Therefore, in the non-circular vertical hole. According to the present invention, mechanical construction of the earth retaining lining is possible.

[Brief description of the drawings]

FIG. 1 is a partially cutaway vertical front view showing a state in which a mold plate of an automatic lining device according to an embodiment of the present invention has been advanced.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is a cross-sectional view taken along the line BB of FIG.

4 is a cross-sectional view taken along the line CC of FIG.

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

6 is a cross-sectional view taken along the line EE of FIG.

FIG. 7 is a plan view of the automatic lining device in a state in which the form plate has moved forward.

FIG. 8 is a partial cross-sectional plan view of the automatic lining device in a state where the form plate is advanced.

FIG. 9 is a plan view of the automatic lining device with the form plate retracted.

FIG. 10 is an enlarged partial vertical cross-sectional view showing a connection structure between an arcuate form plate and its supporting plunger.

FIG. 11 is an enlarged vertical cross-sectional view showing a connection structure between the arcuate form plate and its lock arm.

FIG. 12 is an enlarged partial cross-sectional view of the expansion / contraction mechanism of the arcuate form plate in the state of FIG.

FIG. 13 is a partial cross-sectional enlarged view of the expansion / contraction mechanism of the arcuate form plate in the state of FIG.

FIG. 14 is a vertical cross-sectional view of a connecting portion of an arc-shaped form plate.

FIG. 15 is an explanatory view of the inner surface of the connecting portion of the arc-shaped form plate.

16 is an enlarged cross-sectional view taken along the line FF of FIG.

FIG. 17 is a partially cutaway vertical front view of the automatic lining apparatus according to the second embodiment of the present invention in a state in which the form plate has moved forward.

18 is a cross-sectional view taken along line GG of FIG.

FIG. 19 is a sectional view taken along line HH of FIG. 23.

20 is a cross-sectional view taken along the line I-I of FIG. 23.

21 is a sectional view taken along line JJ of FIG.

22 is a view taken along line KK of FIG. 23 and viewed in the direction of the arrow.

FIG. 23 is a plan view of the automatic lining device in a state where the form plate is advanced.

FIG. 24 is a partial cross-sectional plan view of the automatic lining device in a state where the form plate is advanced.

FIG. 25 is a plan view of the automatic lining device with the form plate retracted.

26 is an enlarged partial cross-sectional view of the expansion / contraction mechanism of the form plate in the state of FIG. 25.

27 is a partial cross-sectional enlarged view of the expansion / contraction mechanism of the form plate in the state of FIG. 24. FIG.

FIG. 28 is a vertical cross-sectional view of a connecting portion of the arc-shaped form plate.

FIG. 29 is an inner side view of the connecting portion of the arc-shaped form plate.

30 is an enlarged sectional view taken along line LL in FIG.

[Explanation of symbols]

 1 Vertical hole 2 Upper frame 3 Lifting hoist 4 Height measuring detector 5 Wire rope 6 Article 7 Concrete for lining 8 Concrete for lining 9 Linear form plate 10 Lift block 10a Lift block body 10b side Part holding block 11 Lifting block fixing fluid pressure cylinder 12 Plunger 13 Plunger 13a First plunger 13b Second plunger 14 First stage plunger 15 Arc-shaped form holding fluid pressure cylinder 16 Second stage plunger 16a Plunger 17 Linear form Holding hydraulic cylinder 18 Arc-shaped peripheral wall surface 19 Arc-shaped mold plate 20 Connection shaft 21 Lock arm 21a First bending arm 21b Second bending arm 22 Straight peripheral wall surface 23 Support frame 24 Monitoring device 25 Steel cylinder 26 Concrete Member 27 jack 28 Support Rope 29 Locking Ring 30 Crane 31 Lower Hook 32 Ground 33 Plunger 34 Lifting Block Posture Control Fluid Pressure Cylinder 35 Center Opening 36 Connecting Shaft 37 Circular Hole 38 Spindle 39 Connecting Ear 40 Spindle 41 Position Measuring Instrument 42 Position Display Target 43 Circular Hole 44 Fitting Hole 45 Circular Hole 46 Lower Flange 47 Inclined Joint 48 Holding Body 49 Cover Plate 51 Shaft Hole 52 Elastic Member 53 Circular Hole 54 Linear Frame Deflection Prevention Fluid Pressure Cylinder 55 Plunger

Claims (5)

[Claims] 1. An elevating hoist 3 and a height measuring detector 4 are fixed to an upper frame 2 fixed to an upper portion of a vertical hole 1 having a substantially oval cross section, and the elevating hoist is provided. Wire ropes 5 respectively fed from the upper machine 3 and the height measuring detector 4
Further, each hanging lower end portion of the strip 6 is connected to the lifting block 10, and the lifting block fixing fluid pressure cylinder 11 is fixed to the upper portion of the lifting block 10.
Plunger 1 which is provided so that the tip end of plunger 12 of No. 1 is pressed against lining concrete 7 after pouring, and telescopically expands and contracts below the elevating block 10.
3 is provided with an arc-shaped form-holding fluid pressure cylinder 15 and a linear form-holding fluid pressure cylinder 17 having plungers 14 and 16, and the vertical hole 1 is provided at the tip of the plunger 13 of the fluid pressure cylinder 15. A connecting shaft 20 for connecting a pair of arc-shaped mold plates 19 facing each other is attached to the arc-shaped peripheral wall surface 18, and each arc-shaped mold plate 19 is attached.
The first and second bending arms 21a, 21 having an intermediate portion connected by a connecting shaft 36 between the inner side of the and the elevating block 10.
A linear form plate connected to the linear form wall holding fluid pressure cylinder 17 through a lock arm 21 formed of b and facing the linear peripheral wall surface 22 of the vertical hole 1 at the tip of the plunger 16 of the linear form holding fluid pressure cylinder 17. 9. An automatic lining device, which is equipped with 9. 2. An elevating hoist 3 and a height measuring detector 4 are fixed to an upper frame 2 fixed to an upper part of a vertical hole 1 having a cross section of a substantially oval shape, and the elevating hoist Wire ropes 5 respectively fed from the upper machine 3 and the height measuring detector 4
And connecting each hanging end of the strip 6 to the lifting block 10,
The lifting block fixing fluid pressure cylinder 11 is fixed to the upper part of the lifting block 10, and the tip of the plunger 12 of the fluid pressure cylinder 11 is provided so as to be in pressure contact with the lining concrete 7 after casting, The lifting block 1
In the lower part of 0, a circular formwork holding fluid pressure cylinder 15 having telescopically expanding first and second stage plungers 13 and 14, and a linear formwork holding fluid pressure cylinder 17 having a plunger 16 are provided. A connecting shaft 20 is attached to the tip of the second-stage plunger 14 of the fluid pressure cylinder 15 to connect the arc-shaped frame plates 19 that are opposed to each other in a pair on the arc-shaped peripheral wall surface 18 of the vertical hole 1, and The inside of each arc-shaped form plate 19 and the first-stage plunger 13 are connected by a lock arm 21 via a pivot, and a vertical hole is formed at the tip of the plunger 16 of the linear form-holding fluid pressure cylinder 17. 1. An automatic lining apparatus having a linear form plate 9 arranged to face the linear peripheral wall surface 22 of 1. 3. A position display target 42 is provided at a central position of an upper part of the lifting block 10, and a position measuring device 41 for measuring a deviation for looking into the position display target 42 is fixed to the upper frame 2. Or the automatic lining device according to 2. 4. The lifting block posture control fluid pressure cylinder 34 is provided in the lifting block 10 such that the plunger 33 expands and contracts downward and the tip of the plunger 33 can contact the bottom of the vertical hole 1 when extended. The automatic lining apparatus according to any one of 3 above. 5. The tip of the plunger 55 presses the inner surface of the linear form plate 9 against the elevating block 10 at an intermediate position of the linear form holding fluid pressure cylinders 17 arranged at intervals. A structure in which a fluid pressure cylinder 54 for preventing the bending of the linear formwork which can be formed is provided.
5. The automatic lining device according to any one of 4 to 4.