JP2014211028A - Mobile propulsion table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile propulsion table for efficiently carrying materials and the like by making carrying-in of the materials and the like orientate in the propulsion direction and orthogonally to the propulsion direction in a drift propulsion construction restricted by an intake part.SOLUTION: A mobile propulsion table is constituted of an upper mobile propulsion table 1 and a lower mobile propulsion table 5. In the upper mobile propulsion table 1, an upper loading table 3 having a size capable of loading a propulsion pipe 12 and a holding material 2 for holding the propulsion pipe 12 from both sides on the upper part of the upper loading table 3 and determining a propulsion direction are fixed, and upper moving means 4 movable orthogonally to the propulsion direction is provided below the upper loading table 3. In the lower mobile propulsion table 5, a lower loading table 6 for loading the upper mobile propulsion table 1 and an upper guide device 7 for making the upper moving means 4 movably travel orthogonally to the propulsion direction above the lower loading table 6 are fixed, and lower moving means 8 movable in the propulsion direction is provided below the lower loading table 6.

Description

  The present invention is a propulsion method that embeds water and sewage, gas pipes, etc. in the ground, and when a shaft is open and cannot be built on the road that is the propulsion position, a shaft including an adjacent open space is constructed, In the horizontal shaft propulsion method in which an open area is taken in, the upper part is closed with the road portion as a horizontal shaft, and propulsion work is carried out from the intake portion through the horizontal shaft, the propelling pipe and materials are taken into the horizontal shaft from the intake portion. This relates to a mobile propulsion stand for installation at the propulsion position.

  In urban areas, many propulsion methods are employed that do not hinder traffic such as vehicles and that do not adversely affect underground structures. The propulsion method is a method in which a propulsion pipe is sequentially pushed into the ground while forming a tunnel from a starting pit provided at one end of a propulsion pipe burying section, and is pushed and buried up to a reaching shaft provided at the other end. In recent years, the traffic volume of vehicles in an urban area tends to increase more and more, and vertical shafts provided at both ends of the propulsion section also obstruct traffic, and a horizontal shaft propulsion method that does not construct a vertical shaft on the road has been developed.

This construction method uses a sidewalk or open space adjacent to the road to construct a shaft, and uses this shaft as a loading section to propel a rectangular cross section on the road side to a predetermined position as a propulsion location. The promotion base is Hakodate. As another method, excavation from the propulsion point on the road to the intake part is constructed to construct a start shaft, and the road part is closed with a lining plate to form a horizontal shaft, and materials etc. are carried out. The method of entering from the take-in part is also adopted. For propulsion work from a horizontal pit made of Hakodate or the like, a method is generally used in which a propulsion pipe is suspended from an intake portion, and the propulsion pipe is rolled from the horizontal pit and moved to a propulsion position. The above-mentioned method of taking in the propulsion pipe requires labor for transporting to the propulsion position, resulting in poor work efficiency and unstable work of rolling the propulsion pipe in the horizontal shaft, and propulsion when the propulsion position is installed. There is a problem in safety such that the pipe must be dropped into a pair of fixed holding members.

For this reason, a method for taking in the propulsion pipe that can be efficiently and safely taken into the side shaft from the take-in portion has been proposed. In this method, a fixed type propulsion base having a holding member for holding the propulsion pipe from both sides and determining the burying direction of the propulsion pipe is provided at the front and rear portions perpendicular to the horizontal shaft, and fixed type. A mobile propulsion stand provided with a holding material is arranged in the middle part where the propulsion stand is not installed, and the mobile propulsion stand can move on a pair of guide devices installed from the end of the horizontal shaft to the inside of the intake section. It has a configuration equipped with a pair of moving means. The take-in work method is to suspend the propulsion pipe from the inside of the take-in part, install it on the mobile propulsion stand, move it on the guide device and transport it to the end of the horizontal shaft, and fix the mobile propulsion stand at the fixed propulsion stand position. By doing so, the propulsion pipe is installed at a predetermined position.

By the above-described intake method, the propulsion pipe is efficiently conveyed from the intake portion to the propulsion position at the front end of the horizontal shaft by the mobile propulsion stand. However, in urban areas that are becoming more and more densely populated, restrictions on sidewalks and open spaces have become stricter, and it has become impossible to secure a large intake area. For this reason, it becomes impossible to take the opening of the intake part over the entire length in the propulsion direction, and the construction conditions that the opening part can be taken only at one front and rear part have increased. For example, when the opening is the rear push jack part or the front start pit part, the front push jack or the start pit has become a hindrance and the propulsion pipe cannot be intercepted. There is a problem that this capture technology cannot be adopted.
Japanese Patent No. 3252102

  For this reason, the problem to be solved by the invention is a mobile propulsion stand that can efficiently intercept the propulsion pipe and install it at a predetermined propulsion position even if the intake section for carrying the propulsion pipe is limited to the front and rear. Is to provide.

The present invention is a mobile propulsion method of a horizontal shaft propulsion method in which a propulsion pipe is buried in the ground from the tip side portion of the horizontal shaft in the propulsion method,
The upper loading platform with a size that can load the propulsion tube, and the holding material for determining the propulsion direction by holding the propulsion tube from both sides are fixed to the upper portion of the upper loading platform, and the lower portion of the upper loading platform is propelled An upper mobile propulsion base equipped with an upper moving means that can move in a direction perpendicular to the direction, a lower loading base for mounting the upper mobile propulsion base below, and an upper movement above the lower loading base By means of a lower mobile propulsion base comprising a guide device for moving the means movably in a direction perpendicular to the propulsion direction and equipped with a lower movement means movable in the propulsion direction at the lower part of the lower loading platform It is a mobile propulsion stand.

  The upper loading platform of the upper movable propulsion platform only needs to have a size that allows the propulsion pipe to be mounted, and is made of steel or the like so as to withstand the weight of the propulsion pipe. The holding material that holds the propulsion tube mounted on the upper loading platform from both sides is usually made of H steel with relatively high strength, and is fixed on the upper loading platform with approximately the same length as the propulsion tube. ing. The upper moving means mounted on the lower part of the upper platform so as to be movable in a direction perpendicular to the propulsion direction has a pair of wheels movably fixed to the left and right so as to be able to travel in a direction perpendicular to the propulsion direction. The wheels are made of relatively strong steel or the like in order to transport heavy propulsion tubes and the like.

  A pair of upper guide devices are fixed on the lower loading table of the lower movable propulsion table so that the upper moving means of the upper movable propulsion table can move in a direction perpendicular to the propulsion direction. The distance between the pair of upper guide devices is set so as to coincide with the distance between the pair of left and right wheels as upper moving means, and the upper moving means travels on the upper guide device. Usually, a stopper is put on the upper guide device and the upper moving means and they are firmly fixed.

The lower moving means mounted on the lower part of the lower loading platform so as to be movable in the propulsion direction has a pair of front and rear wheels movably fixed so as to be able to travel in the propulsion direction. The wheels are made of a relatively strong steel or the like in order to transport heavy propulsion pipes or upper movable propulsion stands. A pair of lower guide devices are installed below the wheels, which are the lower moving means, in the propulsion direction from the take-in portion to the side shaft position to be taken. The lower moving means of the lower movable propulsion base travels in the propulsion direction on the lower guide device. Usually, a stopper is put on the lower guide device and the lower moving means and they are firmly fixed.

  In the horizontal shaft, a horizontal shaft guide device is installed to the tip of the horizontal shaft where the propulsion pipe is propelled at the same height as the upper guide device fixed in the direction perpendicular to the propulsion direction on the lower loading platform. Yes. The upper mobile propulsion base equipped with the propulsion pipe is released from the stopper of the lower mobile propulsion base with the lower guide device, travels on the horizontal shaft guide device, and is transported to the propulsion embedding position. The upper movable propulsion table conveyed to the target position is firmly positioned at a position where the pair of holding members and the pair of basic holding members fixed on both sides match to embed the propelling pipe in a predetermined direction. Fixed. After that, the main push jack installed at the rear is extended and the propulsion pipe row is propelled and buried in the ground.

The mobile propulsion stand of the present invention has a configuration of an upper mobile propulsion stand and a lower mobile propulsion stand, and even if the intake port for carrying materials such as a propulsion pipe is limited to the front and rear, By operating the upper mobile propulsion stand individually, it has become possible to efficiently intercept the propulsion pipe and install it at a predetermined position.

  In propulsion work where a vertical shaft cannot be built on the road that will be the propulsion route, an intake section and a horizontal pit are constructed using adjacent open spaces, and the propulsion pipe and materials are moved up and down from the intake section through the horizontal pit. Efficient propulsion work was realized by transporting it to the propulsion position in the horizontal pit using a type propulsion stand.

  FIG. 1 is a plan view illustrating a mobile propulsion stand according to the present invention. The start shaft is composed of a side shaft 14 on the road side and an intake portion 13 made of a sidewalk, an open space, or the like. The side pit 14 on the road side is covered with a lining plate in order to pass the vehicle after excavation is completed. A lining board is also laid in front of the take-in part 13 which becomes a sidewalk or an open space, and only a part of the rear part is opened to provide an opening part 15. In the propulsion position on the right side of the horizontal shaft 14, fixed holding members 11 for maintaining the direction in which the propulsion pipe 12 is buried are provided at the front and rear portions in the propulsion direction. At the rear end of the propulsion position, a bearing wall 17 that receives a reaction force for pressing the propulsion pipe 12 into the ground is installed. In front of the bearing wall 17, a main pushing jack 18 is disposed to push the propulsion pipe 12 into the ground. A pair of horizontal shaft guide devices 10 for taking in the mobile propulsion base of the present invention is installed from the entrance of the horizontal shaft 14 to the right back in the intermediate portion where the fixed holding material 11 is not installed. A pair of lower guide devices 9 are installed forward from the opening 15 at the rear of the intake portion 13 beyond the position where the horizontal shaft guide device 10 is installed. A mobile propulsion base is mounted on the lower guide device 9.

  In the present embodiment, the entire starting pit surrounded by the barrier wall 16 is excavated from the ground, and after excavation is completed, the horizontal pit 14 that is a road portion and a part of the intake portion 13 that is an open space are covered. Although the method of laying a board was disclosed, when it is difficult to occupy the road, the intake portion 13 is surrounded by the earth wall 16 and the inside of the earth wall 16 is excavated to construct the inlet portion 13. It is also possible to use a method of constructing the horizontal shaft 14 by horizontally embedding a rectangular fence toward the propulsion position.

  FIG. 2 is a cross-sectional view illustrating the mobile propulsion stand of the present invention. The mobile propulsion stand is composed of an upper mobile propulsion stand 1 and a lower mobile propulsion stand 5. The upper movable propulsion base 1 is a holding material 2 for determining the propulsion direction by holding the propulsion pipe 12 from both sides on the upper part of a rectangular upper loading table 3 having a size capable of mounting the propulsion pipe 12. And an upper moving means 4 that is movable in a direction perpendicular to the propulsion direction is provided at the lower portion of the upper loading platform 3. The lower mobile propulsion base 5 is used for causing the upper moving means 4 to move in a direction perpendicular to the propulsion direction on the upper part of a rectangular lower loading base 6 having a size that allows the upper mobile propulsion base 1 to be mounted. A pair of upper guide devices 7 are fixedly provided, and a lower portion of the lower loading platform 6 is provided with a pair of lower moving means 8 that can move in parallel with the propulsion direction. Below the lower moving means 8, a pair of lower guide devices 9 are installed in the propulsion direction at the same interval as the pair of lower moving means 8.

  In the present embodiment, the upper loading platform 3 and the lower loading platform 6 are disclosed in a rectangular shape, but the upper loading platform 3 is large enough to mount the propulsion pipe 12, and the lower loading platform 6 is large enough to mount the upper mobile propulsion loading base 1. In this case, it is possible to use a circular loading table. As the material of the loading platforms 3 and 6, a steel material having high strength is generally used since the relatively heavy weight of the propelling pipe 12 and the upper loading platform 3 are mounted.

The wheels that are the upper moving means 4 and the lower moving means 8 are made of a relatively strong steel material or the like because they carry and transport the heavy-weight propulsion pipe and the upper movable propulsion base 1. Although the wheel has been disclosed as the moving means, it is also possible to use a rotating body which is another conventional technique capable of loading a heavy object and transporting it in a predetermined direction.

The upper guide device 7 is arranged with a commonly used rail material of the same type as the wheel interval. The top surface of the rail material is installed to be the same as the height of the horizontal shaft guide device 10 installed in the horizontal shaft 14. The joint portion between the rail material of the upper guide device 7 and the rail material of the horizontal shaft guide device 10 is disposed with a slight gap so that the upper movable propulsion stand 1 can smoothly travel. A stopper is attached to the front end portion of the horizontal shaft guide device 10 so that the propulsion pipe 12 mounted on the upper movable propulsion stand can be installed at a predetermined propulsion embedding position.

In the lower guide device 9 installed in the take-in part 13, the same rail material as that of the upper guide device 7 is arranged with the same wheel spacing. The extension of the lower guide device 9 is installed in parallel with the propulsion direction, and extends to a position where the above-described upper guide device 7 and the horizontal shaft guide device 10 can be matched. A stopper (not shown) is provided at the tip of the lower guide device to prevent the mobile propulsion stand from being removed.

Next, the implementation status of the present invention will be described. The propulsion pipe 12 is suspended from the opening 15 at the rear of the take-in part 13, and the propulsion pipe 12 is mounted on the upper mobile propulsion base 1 of the mobile propulsion base prepared and arranged below. When the mounting is completed, the lower mobile propulsion base 5 of the mobile propulsion base is advanced in the propulsion direction and stops at a position where the upper guide device 7 and the horizontal shaft guide device 10 coincide. When the stop is completed, the lower movable propulsion base 5 is fixed on the lower guide device 9 by a stopper at that position. When the fixing of the lower mobile propulsion stand 5 is completed, the upper mobile propulsion stand 1 and the lower mobile propulsion stand 5 are released, and the upper mobile propulsion stand 1 moves over the horizontal shaft guide device 10 in the horizontal shaft 14. The vehicle travels in the direction in which the propulsion pipe 12 is embedded. When the propulsion pipe 12 comes to the propulsion position, the upper movable propulsion stand 1 is stopped, and the front and rear fixed holding members 11 and the holding member 2 fixed on the upper movable propulsion stand 1 are firmly connected, The upper mobile propulsion stand 1 is fixed. When the fixing of the upper movable propulsion base 1 is completed, the rear push jack 18 is extended and the propulsion pipe 12 is pushed into the front ground. When the push-in of the propulsion pipe 12 is completed, the connection with the front and rear fixed holding members 11 is released, and the upper movable propulsion stand 1 moves to the intake portion 13 side. When the upper mobile propulsion base 1 moves to a predetermined position of the lower mobile propulsion base 5, the upper mobile propulsion base 1 and the lower mobile propulsion base 5 are fixed, and the stopper on the lower guide device 9 is fixed. Is released, and the mobile propulsion base is moved to the rear opening 15. The mobile propulsion stand of the present invention is implemented by sequentially repeating the above-described method.

  As described above, the mobile propulsion stand of the present invention, which takes in materials such as the propulsion pipe 12 from a part of the opening 15 of the intake section 13 and installs the propulsion pipe 12 at a predetermined position via the horizontal shaft 14, The present invention can be applied to a horizontal shaft propulsion construction that enables efficient and reliable conveyance by configuring a propulsion table that travels back and forth in the propulsion direction and a propulsion table that travels in the horizontal shaft 14 at right angles to the propulsion direction.

It is a top view explaining the mobile propulsion stand of the present invention. It is a cross-sectional view explaining the mobile propulsion stand of the present invention.

DESCRIPTION OF SYMBOLS 1 Upper mobile propulsion stand 2 Holding material 3 Upper loading stand 4 Upper moving means 5 Lower moving propulsion stand 6 Lower loading stand 7 Upper guide device 8 Lower moving means 9 Lower guide device 10 Horizontal shaft guide device 11 Fixed holding material 12 Propulsion Pipe 13 Intake part 14 Horizontal pit 15 Opening part 16 Earth wall 17 Bearing wall 18 Main jack

Claims (1)

In the mobile propulsion method of the horizontal shaft propulsion method where the propulsion pipe is buried underground from the tip side portion of the horizontal shaft by the propulsion method,
The upper loading platform with a size that can load the propulsion tube, and the holding material for determining the propulsion direction by holding the propulsion tube from both sides are fixed to the upper portion of the upper loading platform, and the lower portion of the upper loading platform is propelled Upper moving propulsion base equipped with an upper moving means movable in a direction perpendicular to the direction, a lower loading base for mounting the upper moving propulsion base below and an upper moving means above the lower loading base And a lower mobile propulsion base equipped with a lower moving means that is movable in the propulsion direction at the lower part of the lower loading platform. A mobile propulsion stand characterized by comprising.

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