JPS63255424A - Construction of piping in tunnel and vehicle therefor - Google Patents

Abstract

PURPOSE:To raise the efficiency and safety of construction by a method in which a new pipe is centered and temporarily coupled with an existing pipe by adjustment of the pipe receiving base of a vehicle, the pipe receiving base is lowered by holding the new pipe, the vehicle is removed, and both pipes are finally joined with each other. CONSTITUTION:A vehicle 11 with a pipe receiving base 30 is traveled on rails 10 in a tunnel 2 in which an existing pipe 3 is set, and a new pipe 12 is put on the base 30. The vehicle 11 is carried to near the pipe 3 and the pipes 12 and 3 are centered with each other by adjusting the base 30 vertically and horizontally. The connecting portions of the pipes 12 and 3 are temporarily welded, the pipe 12 is held on a given position by a supporter, and the base 30 is lowered. The vehicle 11 is then removed and the connecting portions are finally joined by welding.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a construction method for piping water pipes, gas pipes, etc. within shield segments, underground propulsion pipes, tunnels, etc., and the implementation of the construction method. Regarding piping construction vehicles used for.

[Prior Art] When relatively large-diameter pipes such as water pipes and gas pipes are laid, for example, in a shield segment or a tunnel as described above, conventionally, the pipes are loaded on a sub-truck that runs on rails. It had been stranded close to the existing pipe. Then, using lifting equipment such as chain blocks and shippers, the removed pipes were hoisted up, aligned with the existing pipes, and joined by welding. Therefore, according to conventional piping construction, a large underground space is required for the space where the lifting machine is used, such as tunnels and shield segments, which requires a lot of money for underground excavation, takes time to construct the piping, and is difficult to operate. There were also safety issues.

E. Purpose of the Invention Therefore, the present invention provides a piping construction method that allows piping to be installed in a mine with a diameter as small as possible compared to the diameter of the pipe to be piped, and that also enables efficient construction and improved safety. The purpose is to provide piping installation vehicles for use in the implementation of the Act.

[Structure of the Invention] According to the underground piping construction method of the present invention, there is a pipe transport process in which a new pipe to be connected is transported on a pipe holder of a vehicle to the vicinity of an existing pipe piped underground, and a pipe holder. The process involves adjusting the table vertically and horizontally to align the new pipe with the existing pipe, temporarily joining the joints of the two aligned pipes, and holding the new pipe in place with supports. The process consists of a step of lowering the tube holder and pulling out and removing the vehicle, and a joining step of permanently joining the joint portions of the two pipes.

Further, the underground piping construction vehicle of the present invention includes a cart configured to run on rails laid underground, and a pipe holder on which a pipe is stably placed. The tube holder is mounted on the truck so that its movement can be adjusted vertically and horizontally by means of a jack.

[Operations and Effects of the Invention] Accordingly, a newly installed pipe is placed on a pipe holder of a vehicle on a rail laid in a mine, and is transported close to the existing pipe, for example, close to 503. Then, the tube holder is moved and adjusted vertically or horizontally from side to side using a jacking means to align the core of the new pipe with the core of the existing pipe.

At this time, centering can be easily performed by providing backing metals on both tubes so that these metals mesh with each other. After alignment, the joint surfaces are temporarily joined by, for example, temporary welding. After the newly installed pipe is held in a predetermined position by the support, the jacking means is lowered and the vehicle is pulled out. Finally, the temporary joint parts are welded and finally joined to complete the piping construction.

As described above, according to the present invention, the vehicle is provided with a pipe holder, and this pipe holder is movable and adjustable in the vertical and horizontal directions with respect to the vehicle. Piping can be done without using lifting equipment such as blocks. Therefore, the underground space can be made as small as possible, and the underground excavation cost can be reduced. Furthermore, since no lifting equipment is used, piping work time is short and it is also safe.

In other words, there is no possibility that the tube will fall due to an unexpected accident.Furthermore, according to the present invention, since the tube is aligned by a jacking means, an operation panel may be provided in a vehicle, for example.
It can also be controlled remotely. In this way, remote operation further increases safety.

[Example] Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 designates a shield segment wall, propulsion tube or tunnel wall. A pipe 3 is installed in the space defined by this wall, that is, in the mine 2. The pipe 3 is set at a predetermined height by the support 4, and the piping construction has been completed, making it an "existing pipe." A backing metal 6 is provided on the end face of the existing pipe, that is, the joint portion 5.

A rail 10 is laid in the mine 2. The construction vehicle 11 runs on this rail. The vehicle is composed of two trolleys 20, 20 and is towed by a towing vehicle 40. Of course, the vehicle can also be configured to be self-propelled.

Details of the truck 20 are shown in FIGS. 2 and 3. That is, the trolley 20 includes a plate-shaped frame 21 and a pair of wheels 2.
2.22, and connectors 23.23 are fixed to the front and rear of the frame by means such as welding, and the trolley 20
．． 20 are connected by a frame 24 through these connectors 23 and 23 as shown in FIG. 7 to constitute the vehicle 11. At approximately the center of the bogie 20, as shown in FIG.
A pair of guide members 25, 25 are provided at a predetermined interval in the left-right direction, that is, in the horizontal direction with respect to the traveling direction of the truck. The tube holder is guided in the horizontal direction by these guide members 25.25.

The tube holder 30, as shown in FIGS. 4, 5, and 6,
It consists of a tube support member 31 into which a tube is directly molded, and a slide member 35 that supports the tube support member. Pipe support member 3
1, the part on which the pipe is placed has an arc shape, and this part is adjusted by a rubber plate 32 or the like. The center portion of the lower surface of the tube support member is horizontal. At both ends, bottomed holes are formed from the lower surface, into which supports of a slide member to be described later are inserted, and jacking means 42, 42 are provided.

As shown in FIGS. 5 and 6, the slide member 35 consists of a horizontal member 36 and columns 37 and 37 erected at both ends of this horizontal member.

The horizontal member 36 is set between the guide members 25 and 25 erected on the cart and guided in the horizontal direction. The jacking means 38 for moving the slide member 35 in the horizontal direction (in the direction perpendicular to the traveling direction of the trolley in FIG. 2) is an eighth
As shown in FIG. Post 3 of slide member 35
7.37 is inserted into the bottomed hole of the tube support member 31, and guides the tube support member 31 in the vertical direction.

The jacking means 38, 42 can be constructed as a hydraulic jack, or a screw jack or even a manual jack; FIG. 9 shows an example in which the jacking means is a hydraulic jack. That is, when the pump 43 of the operating section 41 is driven by a motor or manually, pressure oil is supplied to the hydraulic cylinder through the line 44 and through valves such as stop valves 45, 45, etc., and the slide member 35 is moved horizontally. Therefore, the tube receiving member is also adjusted in the horizontal direction, and the tube receiving member 31 is moved and adjusted in the vertical direction with respect to the slide member.

Next, the operation of this embodiment will be explained with reference to FIG. 1 and FIGS. 10 to 12.

FIG. 1 shows a state in which a newly installed pipe 12 is loaded onto a vehicle 11 and transported to near an existing pipe 3. In this state,
As shown by the arrows in FIGS. 10 and 11, the jacking means 3
8.42.42 is activated to move the pipe support member 31 horizontally from side to side or vertically to align the center of the new pipe 12 with the center of the existing pipe 3. At this time, since a backing metal 6.13 is provided at the joint between the two tubes 3.12, when the backing metal engages, alignment can be achieved.The joint is temporarily welded.

And as shown in FIG. 11, the support 46,
- 16 holds the new pipe 12 in place. The new pipe 12 is held in place in the mine by temporary welds and supports 46, 46, as shown in FIG. 12, so that the vehicle can be pulled out. The vehicle is pulled out and the temporary welds are finally welded to complete the construction. Construction will be carried out sequentially using the same method.

[Summary] As described above, according to the present invention, a vehicle for transporting newly installed pipes is equipped with a pipe holder, and this pipe holder is movable horizontally and vertically by the jacking means. New pipes can be easily aligned with existing pipes. Therefore, the piping construction efficiency is higher than that of conventional construction methods. In addition, since no lifting equipment such as chain blocks or cranes is used, the diameter of the mine can be made small, and the cost of constructing the mine can be reduced. Furthermore, since no lifting equipment is used, it is also safe.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall side view for explaining the construction method, FIG. 2 is a plan view showing the bogie portion of a vehicle, FIG. 3 is a side view of the same, and FIG. FIG. 5 is a plan view showing the sliding member of the tube holder; FIG. 6 is a side view of the same; FIG. 7 is a side view of the construction vehicle;
Figure 8 is a sectional view taken along arrow A-A in Figure 1;
The figure is a circuit diagram of a hydraulic line showing an example of a jacking means, FIG. FIG. 12 is a side view showing the construction vehicle in a pulled-out state. 2... Underground 3... Existing pipe 10... Rail 11... Piping construction vehicle 12... New pipe
20...Dolly 30...Pipe holder (3)...Pipe holder member 35...Slide member) Fig. 2 Fig. 4 Fig. 5 Fig. 6 37 Fig. 8 Fig. 7 Fig. 11 figure

Claims (2)

[Claims] (1) A pipe transport process in which the newly constructed pipe to be connected is transported on a pipe holder of a vehicle to the vicinity of the existing pipe installed underground;
The process involves adjusting the pipe holder vertically and horizontally to align the new pipe with the existing pipe, temporarily joining the joints of the two aligned pipes, and holding the new pipe in place with supports. After that, the underground piping construction method comprises a step of lowering the pipe holder and pulling out and removing the vehicle, and a joining step of permanently joining the joint portions of the two pipes. (2) Consists of a truck configured to run on rails laid underground and a pipe holder on which the pipe is stably placed, and the pipe holder is A piping construction vehicle, characterized in that the vehicle is mounted on the truck so that its movement can be adjusted vertically and horizontally by jack means.