JP6315318B2 - Filling material supply method and labor-saving track repair method - Google Patents

Description

  The present invention relates to a filler supply method for supplying a filler to a space formed between a sleeper holding body for holding a sleeper and a roadbed, and a labor-saving track repair method using the supply method.

  A track (track) through which a train or the like passes includes, for example, a roadbed, ballast (crushed stone, gravel, etc.) spread on the roadbed, sleepers embedded in the ballast, and rails attached to the sleepers It is configured. The ballast laid down becomes a sleeper holder that holds sleepers on the roadbed, and also cushions the impact generated when a train or the like travels on the track directly on the roadbed, improving the ride comfort of the train etc. Playing a role.

  In recent years, a labor-saving track in which a sleeper holding body is integrally formed is known. For example, there is known a structure in which a sleeper is integrally formed by injecting a solidified material such as cement mortar into a gap of crushed stone or the like constituting the ballast in a state where sleepers are embedded in a spread ballast. By using such a labor-saving track, it is possible to prevent the ballast made of crushed stones from collapsing due to the passage of the train, etc., while maintaining the riding comfort of the train, etc. Maintenance work can be reduced.

  When the sleeper holding body is integrally formed as described above, friction is generated between the surface of the roadbed and the sleeper holding body due to the impact caused by the train passing along the track, or the surface of the roadbed is There is a case where it is compressed by the sleeper holding body and deformed. Thereby, a recessed part is formed in the surface of the roadbed of the lower area | region of a sleeper holding body, and a space may be formed between a sleeper holding body and a roadbed. When such a space is formed, when a train or the like passes, a rail attached to a sleeper located in such a space moves up and down by the weight of the train or the like. When the width of such vertical movement of the rail is increased, the rail is damaged or the train is derailed.

  As a method for repairing the above space, a method is known in which a filling material is supplied to such a space (hereinafter also referred to as a filling space) to embed the filling space. For example, a through hole reaching the filling space is formed in the integrally formed sleeper holder, and a filler composed of a hydraulic material and water is supplied to the filling space through the through hole. A method of filling a filling space by curing a filler is known (see Patent Document 1).

  In addition, an opening is formed between the sleeper holder and the roadbed so that the filling space opens to the outside of the lower region of the sleeper holder, and the filler is supplied from the through hole and filled from the opening as described above. A method of overflowing the material is also known (see Patent Document 2). Furthermore, a method of supplying a filler from the opening to the filling space is also known.

JP 2005-344475 A JP 2010-229696 A

  However, as described above, when the filling space is opened outside the lower region of the sleeper holder, the filler supplied to the filling space overflows from the opening and spreads to an unintended range on the roadbed surface. There is a risk of it. In addition, when the filler is supplied from the opening, the filler that has not flowed into the filling space from the opening may flow out to the periphery of the opening and spread to an unintended range on the roadbed surface.

  Therefore, the present invention provides a filler supply method capable of preventing the filler from flowing out to an unintended range of the roadbed surface when supplying the filler to the filling space. It is an object of the present invention to provide a labor-saving track repair method using a filler supply method.

The method for supplying a filler according to the present invention includes a filler containing a moisture-containing filler poured into a filling space formed between a sleeper holder formed on a roadbed and holding a sleeper and the roadbed. In this supply method, a wall member is disposed on the surface of the roadbed outside the region so as to surround at least a part of an outer peripheral portion of the region forming the filling space on the surface of the roadbed, and the wall member and the roadbed By arranging a powdery hydraulic material so as to cover a gap formed between the two, a raised portion that rises from the roadbed surface is formed by the powdery hydraulic material.

  According to such a configuration, the wall member is arranged on the surface of the roadbed outside the region so as to surround at least a part of the outer peripheral portion of the region forming the filling space on the surface of the roadbed, and the wall member By placing the hydraulic material so as to cover the gap formed between the roadbed and the roadbed, when the filler is poured into the area surrounded by the wall member, the filler is placed in an unintended range outside the area. Can be prevented from leaking.

  Specifically, the filler poured into the region surrounded by the wall member on the surface of the roadbed is guided by the wall member and forms a filling space on the surface of the roadbed (hereinafter also referred to as a filling space forming region). Will flow. In addition, the filler poured into the region surrounded by the wall member comes into contact with the hydraulic material that covers the gap formed between the roadbed and the wall member, and the water in the contacted portion is taken away by the hydraulic material. It will be. For this reason, the moisture content of the part which contacted the hydraulic material in a filler falls, and the fluidity | liquidity of such part will fall.

  This prevents the filler from flowing out from the gap formed between the wall member and the roadbed, and prevents the filler from flowing out to an unintended range outside the area surrounded by the wall member. it can. For this reason, while being able to suppress the loss of a filler, the effort of removing the outflowing filler or cleaning can be reduced, and the supply work of the filler can be performed efficiently. it can.

In addition, according to another method for supplying a filler according to the present invention, a filler containing moisture is poured into a filling space formed between a sleeper holding body that is formed on the roadbed and holds the sleepers and the roadbed. In the method of supplying the filler to be supplied, a powdery hydraulic material is disposed on the surface of the roadbed outside the region so as to surround at least a part of the outer peripheral portion of the region forming the filling space on the surface of the roadbed. By doing so, the powdery hydraulic material forms a raised portion that rises from the roadbed surface .

  According to such a configuration, the hydraulic material is disposed on the surface of the roadbed outside the region so as to surround at least a part of the outer peripheral portion of the region forming the filling space on the surface of the roadbed. When the filler is poured into a region surrounded by the material, it is possible to prevent the filler from flowing out to an unintended range outside the region.

  Specifically, the filler poured into the area surrounded by the hydraulic material on the roadbed surface is guided by the hydraulic material and flows into the area forming the filling space on the roadbed surface. Further, the filler poured into the region surrounded by the hydraulic material comes into contact with the hydraulic material, and the hydraulic material is deprived of the moisture in the contacted portion. For this reason, the moisture content of the part which contacted the hydraulic material in a filler falls, and the fluidity | liquidity of such part will fall.

  Thereby, it can prevent that a filler flows out from the area | region enclosed by the hydraulic material, and a filler flows out to the range which is not intended. For this reason, while being able to suppress the loss of a filler, the effort of removing the outflowing filler or cleaning can be reduced, and the supply work of the filler can be performed efficiently. it can.

  The labor-saving track repair method according to the present invention is a labor-saving track repair method including a sleeper holding body that is integrally formed on the roadbed and holds the sleepers, and is formed between the sleeper holding body and the roadbed. A filler containing moisture is supplied to the filling space using the above-described filler supply method.

  As described above, according to the present invention, when the filler is supplied to the filling space, it is possible to prevent the filler from flowing out to an unintended range on the roadbed surface.

It is the figure which looked at the track | orbit repaired using the supply method of the filler concerning this embodiment from the upper direction, Comprising: (a) is the figure which showed the state which installed the formwork, (b) is (a). XX sectional drawing of. It is sectional drawing of the track | orbit which showed the state which installed the formwork in the track | orbit which repairs using the supply method of the filler which concerns on this embodiment, Comprising: (a) is pouring a filler into a formwork and filling space The figure which showed the state which supplied the filler in (b), The figure which showed the state in which the filler filled in the filling space hardened | cured, and the filling layer was formed. (A) is sectional drawing of the track | orbit which showed the state which installed the formwork in the track | orbit repaired using the supply method of the filler concerning other embodiment, and poured the filler into the filling space, (b) Furthermore, sectional drawing of the track | orbit which showed the state which installed the formwork in the track | orbit repaired using the supply method of the filler concerning other embodiment, and poured the filler into the filling space.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  The filler supply method according to the present embodiment (hereinafter also referred to as the present supply method) is used when repairing a track (track) through which a train or the like passes. As shown in FIG. 1, the track is formed between the roadbed 1, the sleepers 2 arranged on the roadbed 1 and holding the rails A, and the sleepers 2 and the roadbed 1 to hold the sleepers 2. The sleeper holding body 3 and a ballast (not shown) made of crushed stone and the like and arranged around the sleeper 2 and the sleeper holding body 3 are configured.

  The roadbed 1 is formed by compacting the ground in a region through which a train or the like passes. The sleepers 2 are composed of square bars formed so that one direction is a longitudinal direction. The sleepers 2 are arranged so that the longitudinal direction thereof is substantially parallel to the surface of the roadbed 1 and is orthogonal to the direction in which a train or the like passes.

  The sleeper holding body 3 holds the sleeper 2 in a state where the lower end side of the sleeper 2 is embedded on the upper surface side. In the embodiment of the present application, the sleeper holder 3 is integrally formed in a state where crushed stones used for ballast are stacked. Specifically, the sleeper holding body 3 is integrally formed by embedding the lower end side of the sleeper 2 from above into a crushed stone or the like that is stacked, and filling a solidified material such as cement mortar into a gap between the crushed stone and the like. . In this embodiment, the sleeper holding body 3 is formed in a plate shape so as to be elongated along the direction in which a train or the like passes (the direction in which the rail A extends). Such a track including the sleeper holder 3 corresponds to what is generally called a labor-saving track.

  This supply method is used when supplying a filler to a space R (hereinafter also referred to as a filling space) R formed between the roadbed 1 and the sleeper holder 3. In the present embodiment, the filling space R is formed between the inner surface of the recess 1 a and the lower surface of the sleeper holder 3 by forming the recess 1 a in the lower region of the sleeper holder 3 on the surface of the roadbed 1. ing. The recess 1a is configured such that the weight of a train or the like passing through the track is transmitted to the roadbed 1 via the sleepers 2 and the sleeper holding body 3, so that friction is generated between the roadbed 1 and the sleeper holding body 3 or the sleeper is held. It is formed by the roadbed 1 being pressed and deformed in the lower region of the body 3.

  Further, in the present embodiment, the filling space R is formed so as to overlap with the sleepers 2 (that is, below the sleepers 2) when the sleepers 2 are viewed from above (that is, in plan view). Further, the filling space R is formed so as to be longitudinal along the longitudinal direction of the sleepers 2. That is, the filling space R is formed by forming the recess 1 a to be long along the longitudinal direction of the sleepers 2.

  The filling space R is formed so as to open to the outside of the lower region of the sleeper holder 3. Specifically, the filling space R is formed so as to open to the outside from the lower region of the sleeper holding body 3 through an opening R1 formed between the surface of the roadbed 1 and the sleeper holding body 3. The opening R1 is formed between an end portion of the sleeper holder 3 (specifically, an end edge portion on the lower surface) and a surface of the roadbed 1 (specifically, an inner surface of the recess 1a).

  In the present embodiment, a pair of openings R <b> 1 and R <b> 1 are formed between both ends in the width direction orthogonal to the longitudinal direction of the sleeper holder 3 and the surface of the roadbed 1. Specifically, the pair of openings R1 and R1 are configured such that both ends in the longitudinal direction of the recess 1a reach the end of the lower region of the sleeper holding body 3 on the surface of the roadbed 1 so that the pair of openings R1 and R1 Is formed. And the both ends of the longitudinal direction of the filling space R are open | released outside the downward area | region of the sleeper holding body 3 from a pair of opening R1, R1. In other words, the filling space R is formed so as to communicate the lower region of the sleeper holding body 3 from one end side to the other end side in the width direction of the sleeper holding body 3.

  This supply method is used when the filling space R is filled with a filler containing moisture. Specifically, this supply method supplies the filler to the filling space R by pouring a filler having fluidity into the filling space R from the opening R1.

  As the filler, a material obtained by kneading water and a hydraulic material is used. The mixing ratio of the hydraulic material and water is not particularly limited, and the fluidity is such that the flow into the filling space R can be smoothly performed and the filling space R can be filled without a gap. It is preferable to set so as to have (specifically, a flow value). The flow value of the filler is preferably 300 mm or more, and more preferably 400 mm or more.

  The hydraulic material is configured to be cured by contact with water, and a material formed in a powder form can be used. For example, as a hydraulic material, normal Portland cement, early-strength Portland cement, Portland cement such as ultra-early strong Portland cement, fast-hardening cement such as jet cement, alumina cement, etc. can be used. Set cement (jet cement type) is preferred.

  Moreover, you may mix | blend an admixture, a quick setting agent, a setting regulator, a water reducing agent, a fine aggregate, etc. with a filler as needed. As the admixture, blast furnace slag, fly ash, fine limestone powder, slaked lime, clay mineral fine powder, and the like can be used. As the quick setting agent, aluminum salts such as sodium aluminate and aluminum sulfate, carbonates such as sodium carbonate, and the like can be used. As a setting regulator, malic acid, tartaric acid, gluconic acid, oxycarboxylic acids such as citric acid, and salts thereof can be used.

  In this supply method, the wall member 4 is arranged on the surface of the roadbed 1 outside the region so as to surround at least a part of the outer periphery of the region forming the filling space R on the surface of the roadbed 1. Specifically, the wall member 4 is arranged on the surface of the roadbed 1 outside the recess 1a so as to surround at least a part of the outer periphery of the recess 1a in plan view. In this embodiment, the wall member 4 is arrange | positioned on the surface of the roadbed 1 outside the area | region below the sleeper holding body 3 so that the area | region which forms opening R1 in the surface of the roadbed 1 may be surrounded. The wall member 4 is configured so that a U-shaped plate member stands on the surface of the roadbed 1 outside the lower region of the sleeper holding body 3.

  When the plate member is arranged on the roadbed, the ballast arranged around the sleepers 2 and the sleeper holder 3 is removed from the circumference of the opening R1 to expose the opening R1, and the surface layer of the roadbed 1 around the opening R1. Dig up. Then, the plate member is installed on the roadbed 1 by embedding the lower end portion of the U-shaped plate member in the surface layer of the roadbed 1.

  In this supply method, the hydraulic material is disposed so as to cover a gap formed between the surface of the roadbed 1 and the wall member 4. Specifically, the hydraulic material is disposed so as to cover the boundary portion between the surface of the roadbed 1 and the lower end portion of the wall member 4 (more specifically, the boundary portion inside the region surrounded by the wall member 4). Moreover, a hydraulic material is arrange | positioned so that the substantially whole region of the boundary part of the surface of the roadbed 1 and the lower end part of the wall member 4 may be covered. As the hydraulic material, the same material as that used for the filler or a different material can be used.

  When the powdery hydraulic material as described above is used, the hydraulic material is disposed so as to protrude from the surface of the roadbed 1. Thereby, the raised part 5 of hydraulic material is formed so that the boundary part of the surface of the roadbed 1 and the lower end part of the wall member 4 may be covered, and the frame 6 which consists of the wall member 4 and the raised part 5 is comprised. . In this supply method, the mold 6 is formed in the vicinity of each of the pair of openings R1 and R1.

  In this supply method, as shown in FIG. 2A, the filler G is poured into the filling space R from one of the pair of openings R1 and R1 (hereinafter also referred to as a filler supply port R2). Specifically, the filler G is poured into the inside of the mold 6 formed in the vicinity of the filler supply port R2. The filler G poured into the inside of the mold 6 is guided by the mold 6 and flows into the filling space R from the filler supply port R2.

  The filler G that has flowed into the filling space R fills the filling space R without a gap and is discharged from the other opening R1 (hereinafter also referred to as a filler discharge port R3), and the mold near the filler discharge port R3. It flows into the inside of the frame 6. In this way, it is possible to confirm that the filling space R is substantially filled with the filler G by discharging the filler G from the filler discharge port R3.

  Inside the molds 6 and 6 formed in the vicinity of the filler supply port R2 and the filler discharge port R3, the filler G is in contact with the raised portion 5, and the water in the contacted portion forms water that forms the raised portion 5. It will be deprived of hard materials. For this reason, the moisture content of the part which contacted the hydraulic material in the filler G will fall, and the fluidity | liquidity of such a part will fall. Moreover, the clearance gap formed in the surface of the roadbed 1, the lower end part of the wall member 4, and a boundary part will be obstruct | occluded by the protruding part 5 (namely, hydraulic material) which absorbed the water | moisture content.

  Thereby, it is possible to prevent the filler G from flowing out from the gap formed between the roadbed 1 and the wall member 4, and to the unintended range outside the area surrounded by the wall member 4. It is possible to prevent G from flowing out. For this reason, while being able to suppress loss of the filler G, the work of removing the cleaned filler G or cleaning can be reduced, and the supply operation of the filler G can be efficiently performed. It can be carried out.

  The filling material G filled in the filling space R is cured after a predetermined time, and forms a filling layer G1 as shown in FIG. Thereby, the filling space R is embedded, the vertical movement of the rail A, the sleeper 2 and the sleeper holding body 3 in the region where the filling space R is formed can be prevented, and the track can be repaired.

  As described above, according to the filler supply method and the labor-saving track repair method according to the present invention, when the filler is supplied to the filling space, the filler flows out to an unintended range of the roadbed surface. Can be prevented.

  The filling material supply method and the labor-saving track repair method according to the present invention are not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. Further, the configurations and methods of the plurality of embodiments described above may be arbitrarily adopted and combined (even if the configurations and methods according to one embodiment are applied to the configurations and methods according to other embodiments). Of course, it is of course possible to arbitrarily select configurations, methods, and the like according to various modifications described below and employ them in the configurations, methods, and the like according to the above-described embodiments.

  For example, in the above-described embodiment, the sleeper holding body 3 is formed in a long shape along the direction in which the train or the like passes, but is not limited thereto, and is formed in a single-wafer shape. It is also possible to configure so that a plurality of pieces are arranged along the direction in which a train or the like passes.

  Moreover, in the said embodiment, although the sleeper holding body 3 is formed by integrally forming the crushed stone etc. which comprise a ballast, it is not limited to this, Hydraulic materials, such as concrete, are water. The sleeper holder may be formed by kneading and curing.

  Moreover, in the said embodiment, although the filling space R is comprised so that it may open | release from a pair of opening R1, R1, it is not limited to this, The filling space R opens only from one opening R1. May be configured. In such a case, one opening R1 functions as a filler supply port R2 and a filler discharge port R3.

  Moreover, in the said embodiment, although the filling space R is formed by forming the recessed part 1a in the surface of the roadbed 1, it is not limited to this, A recessed part is formed in the lower surface side of the sleeper holding body 3 By doing so, the filling space R may be formed.

  Moreover, in the said embodiment, although the protruding part 5 is formed so that the substantially whole region of the boundary part of the surface of the roadbed 1 and the wall member 4 may be covered, it is not limited to this, The surface of the roadbed 1 and The raised portion 5 may be formed so as to partially cover the boundary portion with the wall member 4 (specifically, only the portion where the gap is formed).

  Moreover, in the said embodiment, although the hydraulic material is arrange | positioned in the area | region enclosed by the wall member 4 (the protruding part 5 is formed), it is not limited to this, The wall member 4 The raised portion 5 may be formed by disposing a hydraulic material so as to cover the boundary portion between the surface of the roadbed 1 and the wall member 4 outside the enclosed region. In such a case, when the filler G that has flowed into the gap formed at the boundary between the surface of the roadbed 1 and the wall member 4 flows out of the area surrounded by the mold 6, the filler G that has flowed out. Since it contacts the raised part 5, the fluidity | liquidity of the part which contacted as mentioned above can be reduced. It is possible to prevent the surface of the roadbed layer 1 from spreading to an unintended range.

  Moreover, in the said embodiment, although the filler G is supplied to the filling space R from the filler supply port R2, it is not limited to this, A through-hole is provided in the sleeper holding body 3 so that the filling space R may be reached. And the filler G may be supplied to the filling space R from the through hole. In such a case, the filler G filling the filling space R is discharged from the pair of openings R1 and R1 and flows into the inside of the molds 6 and 6.

  Moreover, in the said embodiment, while arrange | positioning hydraulic material and forming the protruding part 5, while using the wall member 4, it is not limited to this, As shown to Fig.3 (a), The mold 6 may be configured without using the wall member 4. Specifically, the hydraulic material is arranged on the surface of the roadbed 1 outside the region so as to surround at least a part of the outer periphery of the region forming the filling space R on the surface of the roadbed 1. Also good. Specifically, the hydraulic material may be disposed on the surface of the roadbed 1 outside the lower region of the sleeper holder 3 so as to surround the region where the opening R1 is formed on the surface of the roadbed 1. That is, you may comprise the formwork 6 only by the protruding part 5. FIG.

  By configuring in this way, when the filler G is poured into a region surrounded by the hydraulic material, it is possible to prevent the filler G from flowing into an unintended range outside the region. it can. Specifically, the filler G poured into the region surrounded by the hydraulic material on the surface of the roadbed 1 comes into contact with the raised portion 5 (hydraulic material) forming the region and is guided to the opening R1. Then, it flows into the filling space R.

  At this time, the filler G poured into the region surrounded by the raised portion 5 (hydraulic material) comes into contact with the hydraulic material forming the raised portion 5, and the moisture in the contacted portion is taken away by the hydraulic material. It will be. For this reason, the moisture content of the part which contacted the hydraulic material in the filler G will fall, and the fluidity | liquidity of such a part will fall.

  Thereby, it can prevent that the filler G flows out from the area | region enclosed by the protruding part 5 (hydraulic material), and spreads to the range which the surface of the roadbed layer 1 does not intend. For this reason, while being able to suppress loss of the filler G, the work of removing the cleaned filler G or cleaning can be reduced, and the supply operation of the filler G can be efficiently performed. It can be carried out.

  Moreover, in the said embodiment, although the filling space R is formed so that it may open outside the downward area | region of the sleeper holding body 3, it is not limited to this, The recessed part 1a is the downward direction of the sleeper holding body 3. By being formed inside the region, the filling space R may be formed so as not to open outside the region below the sleeper holder 3. In such a case, as shown in FIG. 3B, the sleeper holder 3 is separated from the surface of the roadbed 1 using a jack or the like (not shown), and surrounds at least a part of the outer peripheral portion of the recess 1a. As described above, the mold material 6 may be configured by arranging a hydraulic material to form the raised portion 5. At this time, the filler 5 can be supplied from the outside of the lower region of the sleeper holding body 3 by forming the raised portion 5 from the lower region of the sleeper holding body 3 to the outside of the lower region. .

  DESCRIPTION OF SYMBOLS 1 ... Roadbed, 1a ... Recessed part, 2 ... Sleeper, 3 ... Sleeper holding body, 4 ... Wall member, 5 ... Raised part, 6 ... Formwork, A ... Rail, R ... Filling space, R1 ... Opening, R2 ... Filler Supply port, R3 ... filler discharge port, G ... filler

Claims (3)

In the method of supplying the filler, the filler containing water is poured into the filling space formed between the sleeper holding body and the roadbed, which is formed on the roadbed and holds the sleepers.
A wall member is arranged on the surface of the roadbed outside the region so as to surround at least a part of the outer periphery of the region forming the filling space on the surface of the roadbed, and is formed between the wall member and the roadbed. A method for supplying a filler, comprising: forming a raised portion that rises from the surface of the roadbed by the powdered hydraulic material by disposing a powdered hydraulic material so as to cover the gap. In the method of supplying the filler, the filler containing water is poured into the filling space formed between the sleeper holding body and the roadbed, which is formed on the roadbed and holds the sleepers.
To surround at least a portion of the outer peripheral portion of the region forming the filling space in the roadbed surface, powder-like hydraulic by placing powdered hydraulic material on the outside of the roadbed surface than the region A method for supplying a filling material, comprising forming a raised portion that is raised from a roadbed surface by a material . In the labor-saving track repair method comprising a sleeper holding body that is integrally formed on the roadbed and holds the sleepers,
A labor-saving trajectory characterized in that a filler containing moisture is supplied to a filling space formed between a sleeper holder and a roadbed using the filler supply method according to claim 1 or 2. Repair method.

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