Adjustable threading type railroad bed structure

Abstract

The invention discloses an adjustable threading type railway subgrade structure, and relates to the technical field of railway subgrade construction.The subgrade structure comprises a subgrade body, two railway sliding rail parts and a slope protective layer.The subgrade body comprises a subgrade bottom layer part, a subgrade middle layer part and a subgrade upper layer part; a plurality of lead pipelines are arranged on the inner side of the arc-shaped sunken groove in the roadbed bottom layer part, an outer lead assembly is arranged on the side portion of the slope protection layer and comprises a main line pipeline and a plurality of connecting pipes, branch wires are arranged in the lead pipelines, and a bus is arranged in the main line pipeline; the branch wires can be connected with the bus through the connecting pipes. The roadbed is simple in structure, the circuit systems on the two sides can be connected through the lead pipelines and the outer lead assemblies, the situation that the circuit systems penetrate through the top side of the roadbed body to affect the circuit systems during railway operation can be avoided, a certain amount of heat can be generated during operation of the circuit systems, and the frost heaving frequency of soil due to too low temperature is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of railway roadbed construction, in particular to an adjustable threading type railway roadbed structure. Background Art

[0002] The railway subgrade is a strip structure built as the foundation of the track system according to the route location and certain technical requirements. In addition to bearing its own rock and soil deadweight and the gravity of the track system, it also bears the train load transmitted by the track system. Therefore, it is an important part of the entire railway. The railway is a linear project, which will inevitably pass through different engineering geological units, and the geotechnical engineering environment of the route varies greatly. The stability of the railway subgrade directly affects the driving safety of the train. The railway subgrade is usually composed of soil layers, gravel and other fillers with a trapezoidal cross-section. The slopes on both sides of the railway subgrade are called slopes.

[0003] The inside of the railway subgrade has tracks on its surface and the railway will produce great vibrations to the subgrade when in operation, which can easily cause cracks in the main structure of the subgrade and the base material to roll down from the slope. Water stains will enter the cracked main body of the subgrade, causing the main body of the subgrade to become soft and the filling material of the subgrade to frost heave due to the invasion of water stains under long-term low temperatures. Summary of the invention

[0004] The object of the present invention is to provide an adjustable threading type railway roadbed structure to solve the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An adjustable threading railway roadbed structure, comprising a roadbed body in a trapezoidal shape, two railway slide rails arranged on the top of the roadbed body and a slope protection layer arranged on the slope of the roadbed body, the roadbed body comprising a roadbed bottom layer, a roadbed middle layer and a roadbed upper layer, the upper surfaces of the roadbed bottom layer and the roadbed middle layer both have arc-shaped concave grooves, and the bottom of the roadbed middle layer and the bottom of the roadbed upper layer are both provided with downward convex parts matching the arc-shaped concave grooves, a plurality of guide wire pipes are arranged inside the arc-shaped concave grooves on the roadbed bottom layer, and the two ends of the guide wire pipes respectively penetrate the slope protection layer and extend to the side of the slope protection layer, and the upper edge of the slope protection layer is provided with a A lower fastening portion is provided at the upper connecting portion and the lower edge of the slope protection layer, and a ground pile component fixed to the foundation is provided on the lower fastening portion. An external lead assembly is provided on the side of the slope protection layer, and the external lead assembly includes a main line pipeline laid on the lower fastening portion and a plurality of connecting pipes, a rotating sleeve is provided at one end of the connecting pipe, and the rotating sleeve is rotatably provided on the outer wall of the main line pipeline, the connecting pipe is connected to the inside of the main line pipeline, and a connecting fastening sleeve is provided at the other end of the connecting pipe, the connecting fastening sleeve is detachably connected to the end of the lead pipeline extending to the outside of the slope protection layer, a branch conductor is provided inside the lead pipeline and a bus is provided inside the main pipeline, and the branch conductor can be connected to the bus through the connecting pipe.

[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0008] In an optional solution: a plurality of convex strips are laid inside the arc-shaped sunken groove of the roadbed subbase along its length direction, and the plurality of convex strips are distributed at equal intervals, and the cross-section of the convex strips is circular.

[0009] In an optional scheme: a plurality of vertical ribs are arranged on both sides of the upper end surface of the subgrade portion near the edge, the top of the vertical ribs passes through the middle layer of the roadbed and the upper layer of the roadbed and extends to the top of the upper layer of the roadbed, a plurality of upper connection holes for the top of the vertical ribs to pass through are opened on the top of the upper connection portion, a nut is provided on the top of the vertical rib, and the nut is fastened to the upper connection portion by cooperating with the top thread of the vertical rib.

[0010] In an optional scheme: the top of the upper layer of the roadbed near the edge is provided with an installation side groove portion and a water diversion groove, the water diversion groove is located on one side of the installation side groove portion and the depth of the water diversion groove is less than the depth of the installation side groove portion, the upper connecting portion is stuck in the inside of the installation side groove portion and the thickness of the upper connecting portion is the same as the depth of the installation side groove portion, and at least one drainage groove is provided on the side wall of the slope protective layer, and the top of the drainage groove extends to the upper surface of the upper connecting portion and is connected to the water diversion groove.

[0011] In an optional scheme: the edge of the roadbed sublayer has a vertical surface and the bottom edge of the slope protection layer has a toe guard plate attached to the vertical surface, the lower fastening portion is fixedly connected to the toe guard plate, the ground pile component includes a plurality of bosses and a plurality of anchor rod portions, the bosses are arranged on the side portions of the lower fastening portion and the bosses are connected to the foundation through foundation expansion bolts, the anchor rod portion is fixed inside the lower fastening portion and a plurality of barbs are arranged on the outer wall of the anchor rod portion.

[0012] In an optional solution: a plurality of slope embedded rods are pre-buried on the slope of the roadbed body and an intermediate connecting assembly is provided at the end of the slope embedded rod away from the roadbed body, the intermediate connecting assembly is connected to the lower fastening part and the intermediate connecting assembly is also detachably connected to the slope embedded rod.

[0013] In an optional scheme: the intermediate connecting assembly includes an intermediate rod and multiple locking parts, the intermediate rod is connected to the slope protective layer through multiple fulcrums, the locking part is fastened to the end of the slope embedded rod by a thread, and a buffer spring part is provided between the locking part and the slope protective layer, a blocking part is also provided on the intermediate rod and the blocking part is stuck on the connecting pipe, and the blocking part conflicts with the end of the connecting fastening sleeve away from the lead pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the entire roadbed body is provided with a multi-layer structure, so that the entire roadbed structure is in a relatively independent and closed state, which can not only prevent surface water from penetrating into the roadbed structure, but also prevent groundwater and salt from invading the roadbed structure.

[0016] 2. In the present invention, the subgrade and middle subgrade as well as the middle subgrade and upper subgrade are contacted in an arc-shaped manner, which can avoid lateral displacement between two adjacent subgrade layers and prevent the entire subgrade from expanding to the side and causing collapse.

[0017] 3. The structure of the present invention is simple. The arrangement of the lead-in pipe and the external lead-in assembly can connect the circuit systems on both sides, which can prevent the circuit system from passing through the top side of the roadbed body and affecting the circuit system during railway operation, and can also generate a certain amount of heat during the operation of the circuit system, thereby reducing the frequency of frost heave of the soil due to low temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the roadbed structure in one embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the main structure of the roadbed in one embodiment of the present invention.

[0020] Figure 3It is a schematic diagram of the roadbed substructure in one embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the slope protection layer structure in one embodiment of the present invention.

[0022] Figure 5 for Figure 3 Enlarged structural diagram at A in the middle.

[0023] Notes on the accompanying drawings: roadbed body 100, roadbed bottom layer part 110, roadbed middle layer part 120, roadbed upper layer part 130, arc-shaped recessed groove 140, convex strip part 150, installation side groove part 160, water diversion groove 170, slope protection layer 200, upper connecting part 210, upper connecting hole 220, lower fastening part 230, drainage and drainage groove 240, convex seat 250, anchor rod part 260, barb part 270, lead pipe 300, external lead assembly 400, main line pipe 410, rotating sleeve 420, connecting pipe 430, connecting fastening sleeve 440, intermediate connecting assembly 500, intermediate rod 510, blocking part 520, locking part 530, buffer spring part 540, vertical rib rod 600, railway slide rail part 700, slope embedded rod 800. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; in the accompanying drawings or descriptions, similar or identical parts use the same reference numerals, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0025] The left, right, up, and down positions of the various components given in the drawings are only one arrangement method, and the specific positions are set according to specific needs.

[0026] In one embodiment, Figure 1-Figure 5As shown, an adjustable threading type railway roadbed structure includes a roadbed body 100 in a trapezoidal shape, two railway slide rails 700 arranged on the top of the roadbed body 100, and a slope protection layer 200 arranged on the slope of the roadbed body 100. The roadbed body 100 includes a roadbed bottom layer 110, a roadbed middle layer 120 and a roadbed upper layer 130. The upper surfaces of the roadbed bottom layer 110 and the roadbed middle layer 120 both have arc-shaped concave grooves. 140, and the bottom of the middle layer 120 of the roadbed and the bottom of the upper layer 130 of the roadbed are both provided with a downward convex portion that matches the arc-shaped concave groove 140, and the inner side of the arc-shaped concave groove 140 on the bottom layer 110 of the roadbed is provided with a plurality of guide pipes 300, and the two ends of the guide pipes 300 respectively penetrate the slope protection layer 200 and extend to the side of the slope protection layer 200, and the upper edge of the slope protection layer 200 is provided with a The upper connecting part 210 and the lower edge of the slope protection layer 200 are provided with a lower fastening part 230, and the lower fastening part 230 is provided with a pile component fixed to the foundation, and the side of the slope protection layer 200 is provided with an external lead assembly 400, and the external lead assembly 400 includes a main line pipeline 410 laid on the lower fastening part 230 and a plurality of connecting pipes 430, one end of the connecting pipe 430 is provided with a rotating sleeve 420, and the rotating sleeve 420 is rotatably arranged on the outer wall of the main line pipeline 410, the connecting pipe 430 is connected to the inside of the main line pipeline 410, and the other end of the connecting pipe 430 is provided with a connecting fastening sleeve 440, and the connecting fastening sleeve 440 is detachably connected to the end of the lead pipeline 300 extending to the outside of the slope protection layer 200, the lead pipeline 300 has a branch wire inside and the main pipeline 410 has a bus inside, and the branch wire can be connected to the bus through the connecting pipe 430;

[0027] In the embodiment of the present invention, the subgrade layer 110 of the roadbed is filled with soil and coarse sand, the middle layer 120 of the roadbed is filled with coarse sand, fine sand and concrete, and the upper layer 130 of the roadbed is filled with graded crushed stone and asphalt; the entire roadbed body 100 is provided with three layers, and the subgrade layer 110, the middle layer 120 and the upper layer 130 of the roadbed can isolate the roadbed structure, so that the entire roadbed structure is in a relatively independent and closed state, which can not only prevent surface water from infiltrating into the roadbed structure, but also avoid groundwater and salt from invading the roadbed structure; at the same time, the subgrade layer 110 and the middle layer 120 of the roadbed and the middle layer 120 of the roadbed and the upper layer 130 of the roadbed are in contact with each other in an arc-shaped protruding manner. , which can avoid lateral misalignment between two adjacent foundation layers and prevent the entire bottom layer from expanding to the side and causing collapse; the two slope protection layers 200 are assembled and laid on the slopes on both sides of the roadbed body 100, and the slope protection layers 200 use foam concrete prefabricated blocks. The foam concrete prefabricated blocks have good thermal insulation properties and protect the slope of the roadbed body 100 from material sliding from the side; the setting of the lead pipe 300 and the external lead assembly 400 can connect the circuit systems on both sides, which can avoid the circuit system from passing through the top side of the roadbed body 100 and affecting the railway operation. The circuit system can also generate a certain amount of heat during operation, thereby reducing the frequency of frost heave due to low temperature.

[0028] In one embodiment, Figure 1-Figure 5 As shown, a plurality of convex strips 150 are laid inside the arc-shaped depressed groove 140 of the roadbed base layer portion 110 along its length direction, and the plurality of convex strips 150 are evenly spaced, and the cross-section of the convex strips 150 is circular; in the embodiment of the present invention, the provision of the plurality of convex strips 150 can prevent the roadbed middle layer portion 120 and the roadbed base layer portion 110 from being misaligned in the length direction, and the plurality of convex strips 150 divide the arc-shaped depressed groove 140 into a plurality of small blocks, which is convenient for pouring and increases the tightness of the connection between the roadbed base layer portion 110 and the roadbed middle layer portion 120.

[0029] In one embodiment, Figure 1-Figure 5As shown, a plurality of vertical rib members 600 are arranged on both sides of the upper end surface of the subgrade portion 110 near the edge, the top of the vertical rib member 600 passes through the middle layer 120 of the subgrade and the upper layer 130 of the subgrade and extends to the top of the upper layer 130 of the subgrade, a plurality of upper connection holes 220 for the top of the vertical rib member 600 to pass through are opened on the top of the upper connection portion 210, the top of the vertical rib member 600 has a nut and the nut is fastened to the upper connection portion 210 by threading with the top of the vertical rib member 600; in this embodiment of the present invention, the vertical rib member 600 is made of carbon fiber steel, which has high compressive and tensile strength, and the vertical rib member 600 passes through the middle layer 120 of the subgrade and the upper layer 130 of the subgrade to establish an integral connection in sequence, and the top of the vertical rib member 600 is fastened to the upper connection portion 210 by a nut to ensure that the slope protection layer 200 fits tightly on the slope of the subgrade body 100.

[0030] In one embodiment, Figure 1-Figure 5 As shown, the top of the roadbed upper layer 130 near the edge is provided with an installation side groove portion 160 and a water diversion groove 170, the water diversion groove 170 is located on one side of the installation side groove portion 160 and the depth of the water diversion groove 170 is less than the depth of the installation side groove portion 160, the upper connecting portion 210 is stuck inside the installation side groove portion 160 and the thickness of the upper connecting portion 210 is the same as the depth of the installation side groove portion 160, and at least one drainage groove 240 is provided on the side wall of the slope protection layer 200, and the drainage groove 240 0 extends from the top to the upper surface of the upper connecting portion 210 and is connected to the water diversion groove 170; in the embodiment of the present invention, the upper surface of the upper connecting portion 210 is flush with the top of the upper layer portion 130 of the roadbed, so that part of the water stains can flow along the surface of the slope protection layer 200 to the drainage ditches on both sides of the entire roadbed, and the water on the top of the upper layer portion 130 of the roadbed will first be collected in the water diversion groove 170, and then flow away through the drainage groove 240, so as to prevent the water stains from entering the upper layer portion 130 of the roadbed and the interior of the entire roadbed structure, causing it to loosen.

[0031] In one embodiment, Figure 1-Figure 5As shown, the edge of the subgrade layer 110 of the roadbed has a vertical surface and the bottom edge of the slope protection layer 200 has a toe plate attached to the vertical surface, the lower fastening portion 230 is fixedly connected to the toe plate, and the pile component includes a plurality of bosses 250 and a plurality of anchor rods 260, the bosses 250 are arranged on the side of the lower fastening portion 230 and the bosses 250 are connected to the foundation through foundation expansion bolts, the anchor rods 260 are fixed inside the lower fastening portion 230 and a plurality of barbs 270 are arranged on the outer wall of the anchor rods 260; in the embodiment of the present invention, the provision of the toe plate can ensure the tightness and accurate positioning of the slope protection layer 200 and the slope of the roadbed main body 100, and at the same time, the lower fastening portion 230 and the toe plate can transmit the external force borne by the slope protection layer 200 to the roadbed in a vertical direction, and then use the foundation expansion bolts and the connection between the barbs 270 and the foundation to effectively ensure the installation firmness of the slope protection layer 200.

[0032] In one embodiment, Figure 1-Figure 5 As shown, a plurality of slope embedded rods 800 are also embedded on the slope of the roadbed main body 100, and an intermediate connecting assembly 500 is provided at the end of the slope embedded rod 800 away from the roadbed main body 100, and the intermediate connecting assembly 500 is connected to the lower fastening portion 230 and the intermediate connecting assembly 500 is also detachably connected to the slope embedded rod 800; in the embodiment of the present invention, the provision of the intermediate connecting assembly 500 can increase the tightness of the connection between the middle part of the slope protection layer 200 and the slope of the roadbed main body 100, thereby avoiding bulging of the middle part of the slope protection layer 200.

[0033] In one embodiment, Figure 1-Figure 5 As shown, the intermediate connection assembly 500 includes an intermediate rod 510 and a plurality of locking portions 530, wherein the intermediate rod 510 is connected to the slope protection layer 200 via a plurality of fulcrums, the locking portion 530 is connected to the end of the slope embedded rod 800 via a threaded fastening connection, and a buffer spring portion 540 is provided between the locking portion 530 and the slope protection layer 200, and a blocking portion 520 is also provided on the intermediate rod 510 and the blocking portion 520 is stuck on the connecting pipe 430, and the blocking portion 520 is fastened to the connecting pipe 430. The sleeve 440 is away from the end of the lead pipe 300 and conflicts with it; in the embodiment of the present invention, the connection between the locking portion 530 and the end of the slope embedded rod 800 establishes a fastening connection between the slope protection layer 200 and the slope embedded rod 800, and the setting of the buffer spring portion 540 can buffer the transmission of the vibration generated by the roadbed body 100 during the operation of the railway between the roadbed body 100 and the slope protection layer 200, and the blocking portion 520 can prevent the loosening of the connection between the fastening sleeve 440 and the end of the lead pipe 300.

[0034] The above embodiment provides an adjustable threading type railway roadbed structure, wherein the entire roadbed body 100 is provided with three layers and the roadbed bottom layer portion 110, the roadbed middle layer portion 120 and the roadbed upper layer portion 130 can isolate the roadbed structure, so that the entire roadbed structure is in a relatively independent and closed state, which can not only prevent surface water from penetrating into the roadbed structure, but also prevent groundwater and salt from invading the roadbed structure; at the same time, the roadbed bottom layer portion 110 and the roadbed middle layer portion 120 and the roadbed middle layer portion 120 and the roadbed upper layer portion 130 are contacted in an arc-shaped protruding manner, which can avoid lateral displacement movement between two adjacent base layers and avoid the entire roadbed structure from being damaged. The bottom layer is stretched to the side and causes collapse; two slope protection layers 200 are assembled and laid on the slopes on both sides of the roadbed body 100 respectively, and the slope protection layers 200 use foam concrete prefabricated blocks, which have good thermal insulation properties and protect the slope of the roadbed body 100 from sliding of materials from the side; the setting of the lead pipe 300 and the external lead assembly 400 can connect the circuit systems on both sides, which can prevent the circuit system from passing through the top side of the roadbed body 100 and affecting the circuit system during railway operation, and can also generate a certain amount of heat when the circuit system is running, thereby reducing the frequency of frost heave due to low temperature.

[0035] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An adjustable threading type railway roadbed structure, comprising a roadbed body in a trapezoidal shape, two railway slide rails arranged on the top of the roadbed body and a slope protection layer arranged on the slope of the roadbed body, characterized in that: The main body of the roadbed includes a roadbed bottom layer, a roadbed middle layer and a roadbed top layer; The upper surfaces of the subgrade and the middle subgrade are provided with arc-shaped concave grooves, and the bottom of the middle subgrade and the bottom of the upper subgrade are provided with downward convex parts matching the arc-shaped concave grooves, and a plurality of guide pipes are provided inside the arc-shaped concave grooves on the subgrade, and the two ends of the guide pipes respectively penetrate the slope protection layer and extend to the side of the slope protection layer; The upper edge of the slope protection layer is provided with an upper connection portion that is stuck on the top of the upper layer of the roadbed, and the lower edge of the slope protection layer is provided with a lower fastening portion, and the lower fastening portion is provided with a pile component fixed to the foundation; An external lead assembly is provided on the side of the slope protection layer and the external lead assembly includes a main line pipeline laid on the lower fastening part and a plurality of connecting pipes, one end of the connecting pipe is provided with a rotating sleeve and the rotating sleeve is rotatably provided on the outer wall of the main line pipeline, the connecting pipe is connected to the inside of the main line pipeline and the other end of the connecting pipe is provided with a connecting fastening sleeve, and the connecting fastening sleeve is detachably connected to the end of the lead pipeline extending to the outside of the slope protection layer; The lead pipe has a branch conductor inside and the main line pipe has a bus inside, and the branch conductor can be connected to the bus through a connecting pipe.

2. The adjustable threading railway roadbed structure according to claim 1 is characterized in that: A plurality of convex strips are laid inside the arc-shaped sunken groove of the roadbed subbase along its length direction and the plurality of convex strips are distributed at equal intervals. The cross-section of the convex strips is circular.

3. The adjustable threading railway roadbed structure according to claim 1 is characterized in that: A plurality of vertical ribs are provided on both sides of the upper end surface of the roadbed layer near the edge; The top of the vertical rib member passes through the middle layer of the roadbed and the upper layer of the roadbed and extends to the top of the upper layer of the roadbed. The top of the upper connection part is provided with a plurality of upper connection holes for the top of the vertical rib member to pass through. The top of the vertical rib member is provided with a nut and the nut is fastened to the upper connection part by cooperating with the top thread of the vertical rib member.

4. The adjustable threading type railway roadbed structure according to claim 3 is characterized in that: The top of the upper layer of the roadbed is provided with an installation side groove part and a water diversion groove at a portion close to the edge; The water diversion groove is located at one side of the installation side groove part and the depth of the water diversion groove is less than the depth of the installation side groove part, the upper connecting part is stuck inside the installation side groove part and the thickness of the upper connecting part is the same as the depth of the installation side groove part; At least one drainage groove is arranged on the side wall of the slope protection layer, and the top of the drainage groove extends to the upper surface of the upper connecting part and is connected with the water diversion groove.

5. The adjustable threading type railway roadbed structure according to claim 1 is characterized in that: The edge of the roadbed sublayer has a vertical surface and the bottom edge of the slope protection layer has a toe guard attached to the vertical surface, the lower fastening portion is fixedly connected to the toe guard, the ground pile component includes a plurality of bosses and a plurality of anchor rod portions, the bosses are arranged on the side portions of the lower fastening portion and the bosses are connected to the foundation through foundation expansion bolts, the anchor rod portion is fixed inside the lower fastening portion and a plurality of barbs are arranged on the outer wall of the anchor rod portion.

6. The adjustable threading railway roadbed structure according to claim 5, characterized in that: A plurality of slope embedded rods are also embedded on the slope of the roadbed body, and an intermediate connection assembly is provided at the end of the slope embedded rod away from the roadbed body; The intermediate connection assembly is connected to the lower fastening portion and is also detachably connected to the slope embedded rod.

7. The adjustable threading railway roadbed structure according to claim 6, characterized in that: The intermediate connection assembly includes an intermediate rod and a plurality of locking parts; The intermediate rod is connected to the slope protection layer through multiple fulcrums, the locking part is fastened to the end of the slope embedded rod through threads, and a buffer spring part is provided between the locking part and the slope protection layer; The intermediate rod is also provided with a blocking portion which is clamped on the connecting pipe, and the blocking portion abuts against the end of the connecting and fastening sleeve which is away from the lead-in pipe.

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