JPH0419329B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to installation equipment for penstocks.

BACKGROUND TECHNOLOGY Conventionally, as shown in Fig. 20, a method of installing a relatively small-diameter penstock pipe into a long inclined shaft involves excavating a inclined shaft 31 with an inner diameter considerably larger than that of the iron pipe to be installed, and inserting the penstock into the shaft. Lay the rail 32,
Loading entrance 3 provided in the horizontal part of the tunnel connected to the inclined shaft 31
3, carry in the single pipe 35, place it on the carry-in trolley 36,
A winch 37 installed at the top of the mine carries the single pipe 35 together with a delivery trolley 36 to the installation position, lowers the single pipe 35, pulls up the trolley, and joins the single pipe 35 to the already installed iron pipe 34 by hand welding. Iron pipes were installed through repeated work.

The problem that the invention seeks to solve The above conventional technology has the following problems.

(a) The joint location between the single pipe and the already installed iron pipe is
Since the settings change as the installation progresses, it is time-consuming to change the setup each time.

(b) Since the work of joining iron pipes will be carried out inside the inclined shaft, the inner diameter of the inclined shaft must be made large enough to accommodate the work. Therefore, the cost of diagonal shaft excavation becomes high.

(c) It is inconvenient for workers to get to the work place.

(d) Because the work location differs each time the pipes are joined, the scaffolding is inconsistent and work efficiency is poor.

The present invention aims to solve the above-mentioned problems in conventional construction methods when installing relatively small-diameter penstock pipes into inclined shafts.

Means for Solving the Problems In order to solve the above problems, the penstock installation equipment of the present invention connects single pipes brought in to form extension pipes in a work chamber formed at a predetermined position of the inclined shaft. , in the penstock installation equipment in which the extension pipe is moved and installed into the inclined shaft, the working chamber is formed at an arbitrary location in the inclined shaft, and a single pipe carrying-in hole is formed in the direction intersecting the inclined shaft, and the work A moving device disposed in a room for moving an extension pipe into a diagonal shaft includes support beams fixed at predetermined intervals in the length direction of the diagonal shaft and having means for holding a single pipe, and a length of the diagonal shaft between these support beams. a moving beam arranged to be movable in the direction and having a single-pipe clamping means; a plurality of lifting devices arranged at regular intervals in the circumferential direction between both support beams to move the moving beam in the length direction of the inclined shaft; A slide device is provided for moving the elevating device corresponding to the carrying-in hole to a position outside the carrying-in hole.

Operation In the above configuration, the single pipe carried into the work chamber from the carry-in hole is carried into the moving device from between the lifting devices that are moved outside the corresponding position of the carry-in hole by the slide device, and is held by the moving beam. . Then, after the extension pipe held by the support beam is aligned and joined, the clamping means of the support beam is released, and the lifting device is driven to move the moving beam along the inclined shaft, and the extension pipe is moved into the inclined shaft. move it along the line and transfer it to the support beam. By repeating this, the extension pipe can be installed in the inclined shaft.

Therefore, compared to the conventional method, single pipes can be joined at a fixed position, so the work can be performed stably, the diagonal shaft can be made smaller, and excavation costs can be reduced.

Embodiment An embodiment of the present invention will be described based on the drawings.
As shown in FIG. 1, rails 2 are laid in the inclined shaft 1 to facilitate movement of an extension pipe (a pipe connected to a single pipe) within the inclined shaft 1. A working chamber 3 is provided in at least one arbitrary location between the upper end and the lower end of the inclined shaft 1.
The work chamber 3 has a carry-in hole 4 for carrying the workpiece into the interior.
A moving device 5 for moving the extension pipe in a direction intersecting the inclined shaft 1 is provided. Although the working chamber 3 is installed slightly above the center between the upper end and the lower end of the inclined shaft 1 in FIG. 1, it may be installed near the upper end or near the lower end as necessary.
The number of working chambers 3 may be one or more depending on the performance of the moving device 5 and the length of the inclined shaft.

The moving device 5 is installed in the working chamber 3 along the slope of the working chamber 3 or the inclined shaft 1 as shown in FIG. 1, but is shown horizontally in FIGS. 3 to 19. As shown in FIG. 3, the moving device 5 installed in the work room 3 consists of an upper support beam 6, a lower support beam 7, an annular moving beam 8, and a lifting device 12, and each beam has a built-in clamping device 9. ing. The support beam 6 clamps the extension tube when it is moved upward, and the lower support beam 7 clamps it when it is moved downward, but both are fixed in the work chamber 3. . Normally, it is firmly fixed to the floor side in the work room 3, but if possible, the diagonal reinforcing members 6b, 7b supporting each support beam 6, 7 are supported on the ceiling side.
may be omitted.

A lifting device 12 for moving the annular moving beam 8 is provided between the support beams 6 and 7. Lifting device 1
2 consists of an elevating frame 13 that supports the annular moving beam 8, and a hydraulic cylinder 14 that serves as a driving source for the movement of the annular moving beam 8. In this embodiment, the elevating device 12 moves three times at regular intervals in the circumferential direction. It is set. That is, as shown in FIGS. 4 and 5, there is one set 12a at the top and one set 12b, 12c at the bottom on both the left and right sides. The lifting frames 13a and 13b of the inner upper and right lifting devices 12a and 12b are fixed to the upper and lower support beams 6 and 7, respectively, and the lifting frames 13c of the left lifting device 12c,
That is, the elevating frame 13c corresponding to the loading hole 4
As shown in Fig. 5, the single pipe 19 is
A downwardly movable slide device 31 is provided so that the material can be easily taken in. This slide device 31 is composed of a slide rail 31a that slidably guides the elevating frame 13c, and a slide cylinder 31b that slides the elevating frame 13c along the slide rail 31a.
is extended to move the elevating frame 13c downward, thereby preventing interference between the single pipe 19 and the elevating frame 13c.

A plurality of pin holes 17 are arranged in a row in the lifting frame 13, and one end of the hydraulic cylinder 14 is connected with a pin 16, or when stopping the movement of the annular moving beam 18, it is connected with a pin 15. be able to. The other end of the hydraulic cylinder 14 is pin-jointed 8p to the annular moving beam 8, and the expansion and contraction of the hydraulic cylinder 14 moves the annular moving beam 8 up and down in inchworm-like steps. For example, in FIG. 8, when moving the annular moving beam 8 to the right, the lifting frame 13 and the annular moving beam 8 are connected with the pin 15,
Remove. Next, extend the hydraulic cylinder 14, align one end of the hydraulic cylinder into which the pin 16 was inserted with the pin hole 17 on the right, and connect it with the pin 16. In this state, remove the pin 15, retract the hydraulic cylinder 14, move the annular moving beam 8 pin-jointed to the other end of the hydraulic cylinder 14 to the right, and open the pin hole of the annular moving beam 8 in which the pin 15 was inserted. Align it with the pin hole on the right side of the lifting frame 13, and then insert the pin 15.
join. By repeating this operation, it is possible to move the annular moving beam 8 with inchworm-like steps. Further, when moving the annular moving beam 8 to the left side, the above procedure is reversed. In this example,
Moving the annular moving beam 8 to the left side means moving it toward the upper side of the inclined shaft. 18 is a running rail that facilitates movement of the annular moving beam 8.

Three clamping devices 9 are built into each of the support beam 6, lower support beam 7, and annular moving beam 8, and the clamping device 9 consists of two jacks 10 and a stopper receiver 11. The two jacks 10 are installed in parallel, and the jacks 10 are fixed to each of the beams. A groove 11a is provided at the tip of the stopper receiver 11,
The jack 10 is operated to fit the stopper 20 attached to the single tube 19 into this groove 11a, thereby clamping the single tube 19 or the elongated tube 21. The stoppers 20 attached to the single pipe 19 are provided at three locations on the circumference and two locations in the longitudinal direction to match the clamping device 9, but they also serve to reinforce the single pipe 19, and may be provided around the entire circumference. . Further, the stopper 20 is connected to the inclined shaft 1.
When the extension pipe 21 is moved on the rail 2 laid inside the extension pipe 2, the extension pipe 21 is moved by sliding on the rail 2.
1 from being damaged.

Next, based on FIGS. 10 to 12, the extension tube 2
The procedure for installation work No. 1, that is, the procedure for moving the extension tube 21 downward (to the right in the figure) will be explained.

First, the first single pipe 19 is carried in through the carrying hole 4,
It is attached to the moving device 5. In this case, by lowering the elevating frame 13c on the side of the carry-in hole 4, the single pipe 19 can be easily attached. The single pipe 19 can be attached to the moving device 5 by, for example, arranging a plurality of chain blocks at appropriate positions in the work chamber 3 and the carrying-in hole 4, and adjusting the degree of suspension of each chain block. The single pipe 19 is held by the holding device 9 of the lower support beam 7. That is, the stopper 20 of the single pipe 19 is caught and held in the groove of the stopper receiver 11 of the holding device 9. Next, the second single pipe 19 is carried into the moving device 5 through the carry-in port 4, held by the clamping device 9 of the annular moving beam 8, aligned with the previously installed single pipe 19, and then welded. , are joined to form an elongated tube 21. Automatic welding can also be easily performed. After that, the annular moving beam 8 is moved, and the holding device 9 of the annular moving beam 8 is used to hold the second single pipe 1.
The lower support beam 7 releases its grip and becomes free. In this state, the lifting device 1
2, the extension tube 21 is moved to the right (downward) by inchworm-like steps as described above. FIG. 12 shows the moved state. Next, the extension tube 21 is held between the lower support beams 7 and the annular moving beam 8 is freed. Furthermore, the third single pipe 19 is carried in through the carry-in port 4 and attached to the moving device 5. This state is shown in FIG. The above procedure of joining the single pipe and moving the extension pipe is repeated, and when the extension pipe 21 reaches a predetermined length, mortar is injected and filled into the gap between the inner surface of the inclined shaft 1 and the outer surface of the extension pipe 21, and the extension pipe 21 is anchored. The iron pipe 22 is installed.

Next, iron pipes are also installed upwards (to the left in the figure). In other words, as shown in Figures 13 to 15, the process can be performed upward in the same way as the above procedure for the downward direction, except that the upper support beam 6 is used instead of the lower support beam 7. Although a detailed explanation will be omitted, the extension pipe 21 is pushed up, the last single pipe 19 is joined, the extension pipe 21 pushed upward is joined to the lower installed iron pipe 22, and the inner surface of the upper inclined shaft 1 is Mortar is injected and filled into the gap between the outer surface of the extension pipe 21 and the outer surface of the extension pipe 21, and the installation of the entire penstock is completed.

FIGS. 16 to 19 show another example of the moving device used in the present invention. The moving device 5' is
In place of the moving device 5 in the above example, the upper support beam 6 and the lower support beam 7 are fixed to the rock, and the lifting device 12 is each provided with two hydraulic cylinders, so that the lifting performance is excellent and the working room 3 is The length can be shortened and excavation becomes easier.

Effects of the Invention As described above, according to the present invention, (a) Compared to the conventional method, single pipe joining work can be performed at a fixed position, so work can be performed stably, the inclined shaft can be made smaller, and excavation costs can be reduced. (b) With the support beams on both sides of the moving beam, it is possible to move the extension pipe upward and downward with the same configuration, and the working chamber can be formed in any position depending on the formation situation of the inclined shaft. can do.

(c) Since the joining work is performed by loading the single pipe from the side of the moving device through the carry-in hole in the direction intersecting the inclined shaft, the length of the work chamber can be shortened and the work cost can be reduced.

(d) Since the lifting device on the loading hole side can be moved outward from the position corresponding to the loading hole using the slide device, single pipes can be loaded extremely easily.

This has the effect of:

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram showing an embodiment of the construction method of the present invention, Fig. 2 is a schematic sectional view taken along the line A-A in Fig. 1,
Fig. 3 is a side view showing an example of the working room, Fig. 4 is a sectional view taken along line B-B in Fig. 3, Fig. 5 is a sectional view taken along line C-C in Fig. 3, and Fig. 6 is a sectional view taken along line C-C in Fig. 3. 3 is a sectional view taken along the line D-D in FIG. 3, FIG. 7 is a sectional view taken along the line E-E in FIG. 4, FIG. 8 is a sectional view taken along the line FF in FIG.
The figure is a bottom view of FIG. 8, and FIGS. 10 to 15 are side views showing the construction procedure of the present invention. The case where each extension tube is moved to the upper part is shown. 1st
Fig. 6 is a side view of another example of the working chamber, Fig. 17 is a sectional view taken along line G-G in Fig. 16, and Fig. 18 is a side view of another example of the work chamber.
6 is a sectional view taken along the line H-H in FIG. 6, FIG. 19 is a sectional view taken along the line I-I in FIG. 16, and FIG. 20 is a schematic explanatory diagram of the conventional construction method. 1... Diagonal shaft, 2... Rail, 3... Work room, 4
... Carrying-in hole, 5, 5'... Moving device, 6... Upper support beam, 7... Lower support beam, 8... Annular moving beam,
9... Holding device, 10... Jacket, 11... Stopper receiver, 12... Elevating device, 13... Elevating frame, 14... Hydraulic cylinder, 18... Traveling rail, 19... Single pipe, 20... Stoppa, 21...
Extension pipe, 22... Installed iron pipe, 31... Slide device, 31a... Slide rail, 31b... Slide cylinder.

Claims (1)

[Claims] 1.In a penstock installation facility in which the single pipes brought in are joined together to form an extension pipe in a work chamber formed at a predetermined position in a diagonal shaft, and this extension pipe is moved into the diagonal shaft and installed, the said work chamber is installed in a diagonal shaft. At the same time, a single pipe entry hole is formed in a direction intersecting the inclined shaft, and a moving device disposed in the working chamber for moving the extension pipe into the inclined shaft is provided with a single pipe inlet at a predetermined length direction of the inclined shaft. Support beams fixed at intervals and having single pipe clamping means; movable beams disposed between these support beams so as to be movable in the length direction of the inclined shaft and having single pipe clamping means; A plurality of lifting devices are arranged at regular intervals to move the moving beam in the length direction of the inclined shaft, and a slide device is provided to move the lifting device corresponding to the loading hole to a corresponding position outside the loading hole. Penstock installation equipment characterized by: