JP5408761B2 - Bifurcation snowmelt pit for elevated railway - Google Patents

Description

  The present invention relates to a branching snowmelt pit for an elevated railway for eliminating a situation in which a branching device that is provided in an elevated railway and distributes the traveling direction of a train becomes unconvertible due to a snow lump or falling snow of the train. .

Railroad tracks are becoming increasingly elevated due to various requests such as the elimination of railroad crossings and higher speeds. This elevated railroad is composed of a pillar and an elevated slab formed on the upper part of the slab. Elevated railway is formed by hitting roadbed concrete, laying sleepers on it and laying rails.

  This elevated railway is also equipped with a turnout for changing the direction of travel. The branching device is constituted by a point portion, a lead portion, a crossing portion and a guard rail, and the point portion which is a movable portion is the most important in operation. By the way, in snowy areas, snow blocks attached to the train's car body fall on the branch due to the impact of passing through the branch, or snow accumulated on the track is brought to the branch by the train snow plow. There is a problem that snow cannot be converted due to snow between the rail and the same problem in the elevated railway.

As a means for solving such a problem that the branching device cannot be switched due to a snow lump or the like, removal means such as an electric heating type, a hot air type or a hot water type have been proposed, and foreign objects such as a snow lump are blown off by compressed air. A method patent has also been proposed (Patent Document 1).
Japanese Patent No. 3855144

  However, conventional electric heating type, hot air type, and hot water type removing means have problems that it takes time to remove snow blocks and it is difficult to cope with concentrated snowfall. Although the foreign matter removing means using compressed air has a corresponding effect, there is a problem that the equipment cost increases.

  The present invention has been made in view of the above-described drawbacks and problems of the prior art. Even in an elevated railway, a branching device is provided by quickly storing a snow mass falling from a train or being brought into a recess for melting snow. An object of the present invention is to provide an elevated railway branching snow melting pit that can prevent the situation where it cannot be converted, can cope with concentrated snowfall, and eliminates the instability of sleepers due to the provision of a snow melting recess.

Means of the present invention configured to solving the above problems, a pit skeleton of installing so as to support the splitter of railroad track to railway elevated it includes a base made of concrete straight rectangular parallelepiped, wide to the base portion A bottomed snow-melting recess formed in a groove shape and having an open top; and a plurality of pairs of sleeper receiving portions protruding in opposition from both side walls of the snow-melting recess apart in the longitudinal direction of the base A heating element is disposed on the bottom surface of the snow melting recess, and a lateral pressure support having a substantially U-shaped holding part in a plan view is secured to the pit housing with a bolt, and the sleeper The pressure received by the sleeper from the lateral direction is the lateral pressure support by being fitted to the holding part from above and fastened with a nut on the stud bolts planted in the pair of sleeper receiving parts. It was made to accept .

  And the said snow-melting recessed part is good to have constructed to waterproofing work.

  In addition, the lateral pressure bearing device may be configured by a planar substantially U-shaped holding portion into which the end portion side of the sleeper is fitted, and a fixing portion provided in the holding portion and fixed to the pit housing.

  Furthermore, the sleepers that are mounted on the pair of sleeper receptacles in a state of crossing the snow melting recess are a pair of sleeper blocks that are respectively placed on the pair of sleeper receptacles, and a rod-like shape that connects the pair of sleeper blocks It is good to comprise from a connection material.

  The pit housing may be provided with a circulating type snow melting water jetting device that jets snow melting water staying in the snow melting recess toward the railroad track.

Since the present invention is configured as described in detail above, the following effects can be obtained.
(1) The pit housing installed on the railway overpass to support the branching device on the railway track accommodates snow blocks and falling snow brought on the branching device by the train in the snow melting recess, and snow from the branching device and its surroundings. Therefore, reliable operation of the turnout can be ensured even in an elevated railway.
(2) Since the space is narrow at high places and snow removal work is not required on the elevated railway with restrictions on work and snow removal, smooth operation of the train can be ensured, snow removal work costs can be reduced, and worker safety can be ensured. Also contributes.
(3) Since the snow melting recess is constructed by waterproofing, it is possible to prevent a situation where snow melting water staying in the snow melting recess penetrates into the pit housing and deteriorates the concrete.
(4) Since the snow melting recess is constructed in a waterproof construction, it is possible to prevent a situation where snow melting water permeates through the pit housing into the elevated slab on the bottom surface of the pit housing which cannot be waterproofed by the pit housing. .
(5) The sleepers are secured to the stud bolts installed in each pair of sleeper receiving portions via nuts, and the both ends are held by the lateral pressure bearings to prevent the lateral movement of the pit housing. Therefore, it is possible to increase the safety by holding the sleepers whose load resistance is lowered by the recesses for melting snow more firmly against the load and vibration received when passing the train.
(6) The lateral pressure support has a holding portion formed in a substantially U-shape and is secured to the pit housing with bolts, and the sleepers are implanted in the sleeper receiving portion by fitting the end side to the holding portion from above. Since the bolts are fastened with nuts, the sleepers can be efficiently installed and replaced, and the lateral pressure received when the train passes can be firmly received.
(7) A sleeper is composed of a pair of sleeper blocks that are respectively placed on a pair of sleeper receiving portions and a rod-shaped connecting member that connects the pair of sleeper blocks, and a space is secured between the adjacent sleepers. Falling snow blocks and snow brought in can be quickly dropped into the snow melting recess without being accumulated between sleepers.
(8) Since the circulating snow melting water jetting device that jets the snow melting water staying in the snow melting recess toward the railroad track is provided in the pit housing, the snow mass adhering to the branching device should be removed quickly and completely. The branching device can be operated reliably.
(9) Since the snowmelt water heated by the heating element is circulated and jetted, ice blocks can be quickly melted and removed, and there is no need to provide a separate water supply source, so that the equipment cost can be saved even at elevated locations. .

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 5 show a first embodiment. In the figure, reference numeral 1 denotes a railroad elevated for installing a railroad track 15 to be described later. The railroad overhead 1 is a known configuration in which an elevated slab 1B is formed on the upper ends of pedestals 1A and 1A standing on the ground G. The upper surface 1C is formed as a flat surface.

Reference numeral 2 denotes a pit housing installed on the railway elevated 1. With the pit skeleton 2 base 3 that is formed into a straight rectangular parallelepiped by concrete, it has a bottom 4A, made from the wide groove opening upward on the upper surface 3A of the base part 3, along the longitudinal direction in the center of the base 3 The formed snow-melting recess 4 and a pair of sleeper receiving portions 5, 5 that are spaced apart from each other in the longitudinal direction of the base portion 3 and protrude from both side walls 4 B, 4 B of the snow-melting recess 4 in a substantially U shape and face each other. ...

Reference numeral 6 denotes a waterproofing work formed by applying a waterproof paint such as urethane on the inner surface of the snow melting recess 4. By applying the waterproofing 6, it is possible to prevent the concrete pit housing 2 from being deteriorated due to the penetration of snowmelt water in which the concrete pit housing 2 stays. In addition, while the pit housing 2 is installed in the order of construction, waterproofing is performed on the upper surface 1C of the elevated slab 1B, but snow melting is performed on the elevated slab 1 that cannot be waterproofed on the lower surface of the pit housing 2 via the pit housing 2. This waterproofing 6 has an effect of preventing water from penetrating. A heating element 7 made of a far-infrared planar heater is laid on the bottom surface 4A of the snow melting recess 4, and heat is generated at a constant temperature during the winter period.

8,8 indicates by catching the sleepers 12 to be described later, the horizontal pressure sleepers 12 receives during the passage of a train, a pair of lateral圧支Uketamawagu the order receiving the vibrations by pits skeleton 2. Each lateral pressure support 8 is formed of a pair of front and rear pieces 9A and 9A facing each other, and a horizontal receiving piece 9B that is connected to the front and rear pieces 9A and 9A in a substantially U-shaped plane and receives the end face 12C of the sleeper 12. And the holding | maintenance part 9 which the longitudinal direction edge part side 12A of the sleeper 12 fits, and the substantially L-shaped protrusion protruding from the lower end of each front-and-rear piece 9A, and the bolt insertion hole is formed. The parts 10 and 10 are made of steel plates.

  As shown in FIG. 5, the lateral pressure support 8 described above is mounted on the sleeper receiving portions 5, 5, fixed bolts 11, 11 inserted into the bolt holes of the respective fixed portions 10 and screwed into the pit housing 2. Is fastened to the bit housing 2.

12, 12,... Indicate sleepers placed on each pair of sleeper receiving portions 5, 5 so as to straddle the snow melting recess 4. Each sleeper 12 is made of a known synthetic sleeper molded into a prismatic shape with a synthetic resin. The longitudinal end portions 12A and 12A are fitted to the lateral pressure support 8 from above, and are planted in the pit housing 2. Each sleeper 12 is arranged on the pit housing 2 at a predetermined interval by inserting a certain stud bolt 13 through the insertion hole and fastening with a nut 14.

15 is a railroad track laid on the railroad overpass 1, and the railroad track 15 is connected to sleepers 12, 12,... With a pair of rails 15 A and 15 A arranged on the pit housing 2 by fastening plates 15 B and bolts 15 C. It is fixed. Reference numeral 16 denotes a branching device located on the pit housing 2 and installed in the middle of the railway line 15. The branching device 16 includes a pair of tongrels 16A and 16A and a rolling rod connected to the pair of tongleils 16A and 16A. 16B and a power switch 16C (16B and 16C are not shown) including a point motor that drives the rolling rod 16B to displace the tongrels 16A and 16A in the lateral direction.

  The branching snowmelt pit according to the present embodiment has the above-described configuration, and a pit housing 2 in which a snow melting recess 4 is formed is installed on a railway overhead 1, and a sleeper 12 arranged on the pit housing 2 has a longitudinal shape. The direction end portions 12 </ b> A and 12 </ b> A are clamped by the lateral pressure support 8 and fixed to the pit housing 2. The falling snow and the brought-in snow caused by the train are accommodated in the snow melting recess 4 so that the snow does not remain on the branching device 16 and the smooth conversion operation is not hindered. In addition, snow blocks and the like housed in the snow melting recess 4 are sequentially melted by the heating element 7 and drained to the ground from a drain groove (not shown).

  In addition, the sleepers 12 are subjected to lateral pressure and vibration when passing through the train, but in particular, the lower portions are opened by the snow melting recesses 4, and in the sleepers 12 that are not supported entirely by the roadbed, these are located on both end sides 12A and 12A. Although each sleeper 12 is mounted on the pit housing 2 while holding the end portions 12A and 12A with the lateral pressure support 8, it is received not only by the stud bolt 13 but also by the lateral pressure support 8. To ensure safety.

  6 and 7 show a second embodiment. In the constituent elements of the present embodiment and other embodiments described later, the same constituent elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. . In the figure, reference numeral 21 denotes a sleeper arranged on the pit housing 2 so as to straddle the snow melting recess 4, and the sleeper 21 includes a pair of rectangular pillar-shaped sleeper blocks 22, 22 and the pair of sleeper blocks 22, 22. It is comprised from the rod-shaped connection material 23 which consists of a steel pipe which connects.

  This embodiment has the above-described configuration, and the pair of sleeper blocks 22 and 22 on which the rail 15A is installed are arranged on the pit housing 2 by the implantation bolts 13 and nuts 14 while being held by the lateral pressure indicator 8. In point, it is not different from conventional sleepers 12. However, the middle part of the sleeper 21 is a thin steel pipe-like connecting member 23, and a wide space is formed between the sleepers 21 adjacent to each other. It can be quickly and surely dropped into the snow melting recess 4 without any problem, and the operation of the branching device 16 can be secured.

  Moreover, since the sleeper 21 can be manufactured by integrally molding a resin and a steel pipe at the time of production, the cost can be reduced, the weight can be reduced, and the installation work is easy. Moreover, since the sleepers 21 are installed by holding the end side 22A with the lateral pressure support member 8, the sleepers 21 can have sufficient strength. The rod-like connecting member 23 may be a strong synthetic resin pipe instead of a steel pipe.

  FIG. 8 relates to the third embodiment, which is characterized in that a circulatory snow-melting water injection device 31 is provided in the pit housing 2 and is directed from the injection nozzles 32 and 32 toward the branching device 16 in the snow-melting recess 4. The reason is that snowmelt water is jetted. In the figure, reference numeral 31 denotes a circulation type snowmelt water injection device, and the circulation type snowmelt water injection device 31 is a plurality of injections arranged toward the Tongler 16A at predetermined intervals along both lateral sides in the snowmelt recess 4. Nozzles 32, 32, a pressure pump 33 that sucks and injects the snowmelt water in the snowmelt recess 4, a water absorption pipe 34 connected to the pressure pump 33, a pressure pump 33, and each injection nozzle 32, 32. Are configured with a water pipe 35 that connects the two in series. In addition, in order to accumulate and circulate a certain amount of snowmelt water in the snowmelt recess 4, the drainage groove is an overflow type.

According to the present embodiment, the snow melt staying in the snow melting recess 4 is sprayed from the spray nozzles 32, 32 toward the branching device 16 and the railway track 15, so that the attached snow mass can be quickly and It can be removed completely and the branching device 16 can be operated reliably. Further, since the snow melt water heated by the heating element 7 is sprayed while being circulated, the ice block can be quickly melted and removed, and there is no need to provide a separate water supply source. No. 31 can be installed on the railway overpass 1 without incurring excessive equipment costs.

1 to 5 relate to a first embodiment of the present invention, and FIG. 1 is a partial plan view of a branching snow melting pit. It is a longitudinal cross-sectional view of an elevated railway with a turnout snow melting pit. It is a fragmentary perspective view of a pit housing. It is an IV-IV arrow direction enlarged sectional view in FIG. It is a partial external view of a turnout snow melting pit. 6 and 7 relate to the second embodiment, and FIG. 6 is a perspective view of a sleeper. It is a longitudinal cross-sectional view of a branching device snow melting pit. It is a longitudinal cross-sectional view of the branching device snow melting pit which concerns on 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Railway elevated 2 Pit frame 3 Base 4 Snow melting recess 5 Sleeper receiving part 7 Heating element 6 Waterproofing work 8 Lateral pressure support 9 Holding part 10 Fixing part 12, 21 Sleeper 12A End side 15 Railroad track 16 Brancher 22 Sleeper Block 23 Rod-shaped connecting material 31 Circulating snowmelt water injection device

Claims (5)

Pit skeleton installing so as to support the splitter of railroad track to railway elevated includes a base made of concrete straight rectangular parallelepiped, is formed on the wide groove in the base portion, and snow melting recess bottomed upwardly opened A plurality of pairs of sleeper receiving portions that are spaced apart from each other in the longitudinal direction of the base portion and project from both side walls of the snow melting recess, and a heating element is disposed on the bottom surface of the snow melting recess, A lateral pressure bearing device having a substantially U-shaped holding portion in plan view is fixed to the pit housing with a bolt, and the sleepers are fitted to the holding portions from above with the end portions of the sleepers attached to the pair of sleeper receiving portions. An elevated railway branching snow melting pit characterized in that the pressure received by the sleepers from the lateral direction is received by the lateral pressure bearings by being fastened with nuts to the installed studs and mounted. .   The branching snowmelt pit for an elevated railway according to claim 1, wherein the snowmelt recess is constructed in a waterproof construction.   2. The lateral pressure bearing device is constituted by a planar substantially U-shaped holding portion into which an end side of a sleeper is fitted, and a fixing portion provided on the holding portion and fixed to the pit housing. The above-mentioned elevated railroad branch snowmelt pit.   The sleepers that are mounted on the pair of sleeper receptacles in a state of crossing the snow melting recess are a pair of sleeper blocks that are respectively placed on the pair of sleeper receptacles, and a rod-like connecting member that couples the pair of sleeper blocks. The elevated railroad branching device snow melting pit according to claim 1, wherein:   The elevated railway branching device snow melting pit according to claim 1, wherein the pit housing is provided with a circulating type snow melting water injection device for injecting snow melting water staying in the snow melting recess toward the railroad track. .

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