CN111501441B - Sedimentation adjustment method and system suitable for ballastless track with shoulder - Google Patents
Sedimentation adjustment method and system suitable for ballastless track with shoulder Download PDFInfo
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- CN111501441B CN111501441B CN202010394214.7A CN202010394214A CN111501441B CN 111501441 B CN111501441 B CN 111501441B CN 202010394214 A CN202010394214 A CN 202010394214A CN 111501441 B CN111501441 B CN 111501441B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004062 sedimentation Methods 0.000 title claims description 15
- 238000011065 in-situ storage Methods 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims description 14
- 230000035939 shock Effects 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000003734 kidney Anatomy 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 230000008439 repair process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/06—Transporting, laying, removing or renewing sleepers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
- E01B29/22—Raising rails from sleepers, e.g. for inserting sole-plates
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/24—Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means
- E01B29/28—Fixing or removing detachable fastening means or accessories thereof; Pre-assembling track components by detachable fastening means the fastening means being of screw-and-nut type; Apparatus therefor, adapted to additionally drilling holes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a settlement adjusting method and a system suitable for a ballastless track with a shoulder, belonging to the technical field of track traffic, wherein a settlement adjusting unit comprising a cast-in-situ boss, a base, a spring strip buckling and pressing component and a ballast connecting component is arranged between shoulder bearing platforms of a ballast settlement section, the height adjustment and the track gauge adjustment of the steel rail after ballast bed settlement can be accurately realized by utilizing the corresponding arrangement of the setting height of the cast-in-situ boss and the corresponding optimization of the embedded position of the insulating sleeve. The settlement adjusting method and system for the ballastless track with the shoulder, disclosed by the invention, have the advantages that the structure of the settlement adjusting system is simple, the settlement adjusting step is simple and convenient, the settlement adjusting method and system can be fully suitable for height adjustment and track gauge adjustment during uneven settlement of a ballast bed, the efficiency and precision of steel rail settlement adjustment are improved, the high smoothness of the steel rail is fully ensured, the running quality of a high-speed railway is improved, the maintenance cost of the ballastless track with the shoulder is reduced, and the ballastless track with the shoulder has better application prospect and popularization value.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to a settlement adjusting method and system suitable for a ballastless track with a shoulder.
Background
In recent years, the high-speed railways in China have been spotlighted, and by 2019, the operating mileage of the high-speed railways in China exceeds 3.5 kilometers, accounts for more than two thirds of the mileage of the high-speed railways in the world, and is stable in the first place in the world.
With the continuous increase of operation mileage lines, the maintenance and repair amount of the lines is also increased, and new maintenance and repair problems are continuously caused. Taking maintenance and repair of the track as an example, the high-speed railway in China mainly adopts a ballastless track structure, and the geometric dimension of the track can be regulated only in a limited way through a fastener system in the line operation period due to the particularity of the ballastless track structure. Although a higher construction standard is adopted in the construction process of the high-speed railway and corresponding construction measures are adopted, the problems of ballast bed sedimentation or track gauge change and the like can also occur in the later operation process. Once the post-construction settlement amount of the ballastless track or the track gauge variation amount of the track exceeds the adjustment capacity of the fastener system, the geometric state of the track is difficult to repair, so that the train has to run at a limited speed, and the normal operation of a line is seriously affected.
At present, in order to timely and effectively repair the geometric state of the ballastless track, restore the high smoothness of the line, ensure the safe operation of the train, and aim at larger post-construction settlement, a generally adopted method is a grouting method, and the foundation under the track is lifted by the whole method so as to complement the settlement of the track. Although the method can solve the uniform settlement of the foundation under the rail to a certain extent, the method can not meet the adjustment requirement when the foundation under the rail is unevenly settled, and can not realize the larger adjustment of the rail in the transverse direction. In addition, the method needs special construction equipment, is complex in process and high in maintenance cost, and indirectly improves the operation cost of the high-speed railway.
Disclosure of Invention
Aiming at one or more of the defects or improvement demands in the prior art, the invention provides a settlement adjusting method and system suitable for a ballastless track with a shoulder, which can effectively realize the height adjustment and the track gauge adjustment of a rail in a track bed non-uniform settlement section, improve the precision and the efficiency of the rail settlement adjustment and the track gauge adjustment, and ensure the high smoothness of a line.
In order to achieve the above object, according to one aspect of the present invention, there is provided a settlement adjusting system adapted to a shoulder ballastless track, comprising a plurality of settlement adjusting units provided at a settlement section of a ballast bed;
The settlement adjusting unit comprises a cast-in-situ boss, a base, an elastic strip buckling and pressing assembly and a ballast bed connecting assembly;
The cast-in-situ boss is cast-in-situ between two shoulder bearing rail platforms on the track bed, and the casting thickness corresponds to the height adjustment of the steel rail;
The base comprises a bottom plate with a plate-shaped structure, and at least one through hole, namely a bolt hole, penetrating through two end faces of the bottom plate is respectively formed at two ends of the bottom plate; the two ends of the top surface of the bottom plate are respectively provided with a retaining shoulder, and the steel rail can be tightly pressed between the two retaining shoulders through a fastener; a plurality of elastic strip fastening holes are formed in the bottom plate between the two retaining shoulders, corresponding to the fasteners;
The elastic strip buckling component comprises a T-shaped bolt and a buckling nut, wherein the connecting end of the T-shaped bolt can penetrate through the elastic strip fastening hole from the bottom of the base and is limited at the bottom of the base through the nut of the T-shaped bolt, and the connecting end of the T-shaped bolt penetrates through the fastener and then is matched with the buckling nut so as to compress the elastic strip of the fastener;
The ballast bed connecting assembly comprises a screw spike and an insulating sleeve; the insulating sleeve is vertically embedded in the cast-in-situ boss and extends into the ballast bed from the bottom of the cast-in-situ boss, the embedded position of the insulating sleeve corresponds to the opening position of the bolt hole on the bottom plate, and the base is connected and fixed to meet the distance adjusting requirement of the steel rail; one end of the screw spike is a connecting end, the other end of the screw spike is provided with a pressing cap, the screw spike penetrates through the bolt hole through the connecting end of the screw spike and is connected in the insulating sleeve in a matched mode, and the pressing cap abuts against the top surface of the base.
As a further improvement of the invention, the bolt holes are kidney-shaped bolt holes, and kidney-shaped distance adjusting rings are coaxially embedded in the bolt holes;
the waist-shaped distance-adjusting ring comprises a body in a waist-shaped structure, a circular through hole penetrating through two end faces is formed in the body, and the distance between the axis of the circular through hole and the axis of the body in the transverse direction of the steel rail is zero or is not zero so as to form a concentric distance-adjusting ring and an eccentric distance-adjusting ring.
As a further improvement of the invention, the eccentric distance-adjusting rings have various optional dimension specifications, the eccentric distances of the eccentric distance-adjusting rings are different, and the eccentric distance of the eccentric distance-adjusting rings is 1 mm-15 mm.
As a further improvement of the invention, the axis of the circular through hole and the axis of the body are arranged at intervals in the transverse direction of the track, and the long diameter direction of the kidney-shaped bolt hole is the transverse direction of the track.
As a further improvement of the invention, a limiting device is arranged in the elastic strip fastening hole corresponding to the nut of the T-shaped bolt and is used for limiting the circumferential rotation of the nut.
As a further improvement of the invention, an insulating shock pad is arranged between the base and the cast-in-situ boss.
In another aspect of the present invention, a settlement adjustment method suitable for a ballastless track with a shoulder is provided, which is implemented by using the settlement adjustment system, and the method comprises the following steps:
(1) Drilling holes between two shoulder bearing rail platforms of the ballast bed sedimentation section respectively, and enabling the drilling holes to meet the track gauge setting requirement of the steel rail;
(2) Respectively arranging insulating sleeves in the drilled holes, and enabling the tops of the insulating sleeves to protrude out of the top surface of the ballast bed;
(3) Casting a cast-in-situ boss in a cast-in-situ mode between the two shoulder bearing rail platforms, wherein the cast-in-situ height of the cast-in-situ boss corresponds to the height adjustment quantity of the steel rail, and the insulating sleeve between the two shoulder bearing rail platforms is fully embedded in the corresponding cast-in-situ boss;
(4) T-shaped bolts are respectively arranged in the elastic strip fastening holes of the base, so that the connecting ends of the T-shaped bolts extend out of the top surface of the base; then placing the base on the cast-in-situ boss, and enabling each kidney-shaped bolt hole to be vertically aligned with a corresponding insulating sleeve;
(5) A kidney-shaped distance adjusting ring is respectively arranged in each kidney-shaped bolt hole, so that a circular through hole of each kidney-shaped distance adjusting ring is coaxially aligned with the insulating sleeve; the screw spikes are respectively arranged corresponding to the insulating sleeves, the screw spikes are controlled to pass through the corresponding circular through holes and then are connected with the insulating sleeves in a matching way, and the pressing caps of the screw spikes are abutted against the base;
(6) The steel rail is placed on the base, fasteners are respectively arranged on two sides of the steel rail, so that each T-shaped bolt respectively penetrates through the fasteners and is locked by the buckling nuts, and the settlement adjustment of the steel rail is completed.
As a further improvement of the invention, in the step (5), the kidney-shaped distance adjusting rings are concentric distance adjusting rings.
As a further improvement of the present invention, for the rail set up in step (6), when the rail is required to be subjected to gauge adjustment, the adjustment process includes:
Selecting an eccentric distance adjusting ring with the eccentric distance equal to the track distance adjusting amount; and respectively replacing each concentric distance-adjusting ring on the base with the eccentric distance-adjusting ring, so that the eccentric distance of each eccentric distance-adjusting ring has the same direction, and the eccentric distance direction is the same as the adjustment direction of the track gauge.
The above-mentioned improved technical features can be combined with each other as long as they do not collide with each other.
In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:
(1) The settlement adjusting system suitable for the ballastless track with the shoulder is characterized in that a cast-in-situ boss is cast in a cast-in-situ mode between the shoulder bearing rail platforms of the settlement section of the ballast bed, the insulating sleeve is pre-buried in the cast-in-situ boss and the ballast bed, the base, the elastic strip buckling and pressing component and the ballast bed connecting component are arranged corresponding to the cast-in-situ boss, and the corresponding arrangement of the setting height of the cast-in-situ boss and the corresponding optimization of the pre-buried position of the insulating sleeve are utilized, so that the rapid and reliable arrangement of the steel rail in the settlement section of the ballast bed can be effectively realized, the steel rail adjustment requirement of the non-uniform settlement section of the ballast bed is met, the high smoothness of the steel rail in the settlement section of the ballast bed is further fully ensured, and the cost of steel rail height adjustment and track gauge adjustment is reduced;
(2) The settlement adjusting system suitable for the ballastless track with the shoulder can realize track gauge adjustment in the settlement adjusting process to a certain extent by preferentially setting the position of the settlement adjusting system in the process of setting the cast-in-situ boss, meanwhile, the track gauge adjustment of the steel rail after the settlement adjustment can be realized by setting the bolt holes on the base as waist-shaped bolt holes and arranging the concentric gauge adjusting rings and the eccentric gauge adjusting rings correspondingly and utilizing the corresponding replacement of the concentric gauge adjusting rings and the corresponding eccentric gauge adjusting rings, and the track gauge adjusting capability of the existing fasteners on the base can be further realized, so that the flexibility and the convenience of the track gauge adjustment of the steel rail are further improved, the accuracy and the efficiency of the track gauge adjustment are improved, and the cost of the track gauge adjustment of the steel rail is reduced;
(3) The settlement adjusting method and system for the ballastless track with the shoulder, disclosed by the invention, have the advantages that the structure of the settlement adjusting system is simple, the settlement adjusting step is simple and convenient, the height adjustment and the track gauge adjustment of the steel rail after the ballast bed is settled can be accurately realized, the method and the system are especially suitable for the height adjustment and the track gauge adjustment when the ballast bed is unevenly settled, the efficiency and the accuracy of the steel rail settlement adjustment are improved, the high smoothness of the steel rail is fully ensured, the running quality of a high-speed railway is improved, the maintenance cost of the ballastless track with the shoulder is reduced, and the method and the system have better application prospect and popularization value.
Drawings
FIG. 1 is a schematic diagram of a sedimentation adjustment system according to an embodiment of the present invention;
FIG. 2 is an exploded view of the construction of a sedimentation adjustment system in an embodiment of the present invention;
FIG. 3 is a top view of a base structure of a sedimentation adjustment system according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the base C-C of the sedimentation adjustment system in an embodiment of the present invention;
FIG. 5 is a bottom view of the base structure of the sedimentation adjustment system according to the embodiment of the present invention;
FIG. 6 is a top view & A-A cross-sectional view of the concentric adjusting ring in an embodiment of the invention;
FIG. 7 is a top view & B-B cross-sectional view of the eccentric adjusting ring in an embodiment of the present invention;
FIG. 8 is a schematic diagram of the matching structure of the base, cast-in-situ boss and ballast bed in an embodiment of the invention;
FIG. 9 is a top view of the structural arrangement of cast-in-situ bosses on a ballast bed in an embodiment of the present invention;
FIG. 10 is a front view of the structural arrangement of cast-in-situ bosses on a ballast bed in an embodiment of the present invention;
FIG. 11 is a schematic illustration of several gauge adjustments of a settlement adjustment system in accordance with embodiments of the invention;
FIG. 12 is a schematic diagram of a sedimentation adjustment system according to an embodiment of the present invention when sedimentation is adjusted;
Like reference numerals denote like technical features throughout the drawings, in particular: 1. a base, a shoulder, a waist-shaped bolt hole, 103, spring strip fastening holes 104, stiffening ribs 105 and limit bosses; 2. the elastic strip withholding assembly comprises a 201. T-shaped bolt, a 202. A gasket and a 203. Withholding nut; 3. a ballast bed connecting assembly, 301, screw spikes, 302, insulating sleeves; 4. insulating shock pad, 5, waist-shaped distance-adjusting ring, 501, concentric distance-adjusting ring, 502, eccentric distance-adjusting ring; 6. cast-in-situ boss, shoulder-blocking rail-bearing platform, fastener, track bed and steel rail.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Examples:
The settlement adjusting system suitable for the ballastless track with the shoulder in the preferred embodiment of the invention is shown in figures 1 and 2 and is mainly used for adjusting the vertical height and the horizontal track gauge of the steel rail 10 in the settlement section of the ballast bed 9. Specifically, the settlement adjusting system comprises a cast-in-situ boss 6 arranged in a settlement area of a ballast bed 9 and a base 1 which can be fixedly arranged on the cast-in-situ boss 6, wherein a steel rail 10 can be correspondingly fixed on the base 1 through a fastener 8, and the adjustment of the track gauge of the steel rail 10 is completed through the preferable arrangement of a waist-shaped distance adjusting ring 5 when the base 1 is fixed.
More specifically, the settlement adjusting system in the preferred embodiment comprises a base 1, a spring strip buckling and pressing assembly 2, a ballast bed connecting assembly 3, a waist-shaped distance adjusting ring 5 and a cast-in-situ boss 6. Wherein the cast-in-place boss 6 can be cast-in-place between two existing shoulder support rails 7 of the ballast bed settling section, as shown in fig. 9, 10. Before pouring the cast-in-situ boss 6, holes need to be drilled on the ballast bed 9 according to the track gauge setting of the steel rail 10, namely ballast bed connecting holes, preferably two pairs which are respectively arranged on two lateral sides of the steel rail 10 are drilled for corresponding setting and connection of the four ballast bed connecting assemblies 3. Obviously, when the cast-in-situ boss 6 is arranged, the distance adjustment requirement of the steel rail 10 can be correspondingly considered, and the distance adjustment requirement is correspondingly embodied at the opening positions of the 4 ballast bed connecting holes. However, in actual setting, it should be understood that the number and the setting pitch of the ballast bed connecting holes are corresponding to the setting positions and the intervals of the kidney-shaped bolt holes 102 on the base 1.
Further, when pouring the cast-in-situ boss 6, the insulating sleeves 302 of each ballast bed connecting assembly 3 are correspondingly pre-embedded into the ballast bed 9 and the cast-in-situ boss 6, namely, the upper parts of the insulating sleeves 302 penetrate through the two vertical end faces of the cast-in-situ boss 6, and the bottoms of the insulating sleeves are embedded into the ballast bed 9, so that the connection stability of the cast-in-situ boss 6 and the ballast bed 9 can be realized. Obviously, the cast-in-situ height of the cast-in-situ boss 6 corresponds to the settlement adjustment height of the ballast bed settlement section.
Further, as shown in fig. 1 to 5, the base 1 in the preferred embodiment includes a bottom plate with a certain thickness and two shoulders 101 respectively disposed at two ends of the top surface of the bottom plate, where the two shoulders 101 may be used for corresponding arrangement of the fastener 8 to fix the rail 10 on the base 1. Waist-shaped bolt holes 102 are respectively arranged on two sides of the two retaining shoulders 101, which are away from each other, as shown in fig. 3 and 5, the long diameter direction of the waist-shaped bolt holes 102 is along the transverse direction of the rail, and the short diameter direction of the waist-shaped bolt holes 102 is along the longitudinal direction of the rail. Meanwhile, a pair of elastic strip fastening holes 103 are formed between the two retaining shoulders 101 in a transverse direction and correspond to the fastening of the fastener 8, and are used for the corresponding arrangement of the two elastic strip buckling assemblies 2, and the arrangement positions of the elastic strip fastening holes 103 correspond to the arrangement positions of the fastener 8.
Further specifically, the ballast bed connecting assembly 3 in the preferred embodiment is matched with the kidney-shaped distance adjusting ring 5, the kidney-shaped distance adjusting ring is used with the kidney-shaped distance adjusting ring, the kidney-shaped distance adjusting ring comprises a spiral ballast spike 301 and an insulating sleeve 302, the insulating sleeve 302 is embedded in the cast-in-situ boss 6, the bottom of the spiral ballast spike 301 can penetrate through the kidney-shaped distance adjusting ring 5 and is connected with the insulating sleeve 302 in a matched mode, a pressing cap is arranged at the top of the spiral ballast spike 301, and the pressing cap can be abutted against the upper end face of the kidney-shaped distance adjusting ring 5 and the top face of the base 1 after the spiral ballast spike 301 rotates in place, so that the base 1 is pressed on the cast-in-situ boss 6.
Accordingly, the kidney-shaped distance adjusting ring 5 in the preferred embodiment includes a body which can be correspondingly inserted into the kidney-shaped bolt hole 102 and has a long kidney-shaped structure, and a circular through hole is vertically formed in the middle of the body for the bottom of the screw spike 301 to pass through, and by preferably positioning the circular through hole with the axis of the body, a concentric distance adjusting ring 501 as shown in fig. 6 and an eccentric distance adjusting ring 502 as shown in fig. 7 can be formed. In the concentric distance-adjusting ring 501, the axis of the circular through hole and the axis of the body are in the same vertical plane along the longitudinal direction, and the two are preferably arranged in a collinear way; in the eccentric adjusting ring 502, the axis of the circular through hole is spaced apart from the axis of the body by a distance l in the transverse direction of the rail 10, and the two are preferably arranged at a distance in the transverse direction, forming an eccentric distance orientation, as shown in fig. 7. In the preferred embodiment, the direction of the eccentricity is the direction in which the center of the circular through hole is directed toward the center of the body, that is, the direction in which the eccentricity is directed to the left in fig. 7.
In practice, the kidney-shaped distance adjusting rings 5 are arranged in pairs in the lateral direction, and the pair numbers of the kidney-shaped distance adjusting rings 5 arranged in the longitudinal direction are at least one pair, for example, two pairs as shown in fig. 8. Of course, in order to realize stable connection of the base 1, the number of pairs of the waist-shaped distance-adjusting rings 5 may be multiple. Also, when the pair of concentric gauge rings 501 is replaced with the pair of eccentric gauge rings 502, the lateral distance between the two eccentric gauge rings 502 is equal to the lateral distance between the two concentric gauge rings 501 when arranged in pairs. In addition, according to the actual application requirement, the eccentric distance adjusting rings 502 can be set to be various sizes and specifications, the eccentric distances l of the eccentric distance adjusting rings 502 are different, and further, the eccentric distance adjusting rings can be preferably 1-15 mm.
Further, the spring strip holding assembly 2 in the preferred embodiment includes a T-bolt 201, a washer 202 and a holding nut 203, wherein the T-bolt 201 can pass through the bottom of the spring strip fastening hole 103 and extend upwards to match the fastener 8, thereby holding the spring strip by the holding nut 203 and the washer 202. To fix the nut end of the T-bolt 201, the spring strip fastening hole 103 in the preferred embodiment is a stepped hole, the hole diameter of one side close to the bottom surface of the base 1 is larger than the hole diameter of the other side, and a limiting boss 105 is disposed in the stepped hole, as shown in fig. 5, so that the nut of the T-bolt 201 is locked in the circumferential direction after abutting against the limiting boss 105.
Further preferably, an insulating shock pad 4 is provided at the bottom of the base 1 for insulation and shock absorption of the bottom of the base 1. The upper and lower surfaces of the insulating shock pad 4 are preferably of pitted surface design to enhance the friction between the upper and lower contact surfaces.
The settlement adjusting system is utilized to adjust the height and track gauge of the settlement section of the shoulder ballastless track, and the method preferably comprises the following steps:
(1) A cast-in-situ boss 6 is arranged on a ballast bed 9 of the ballastless track settlement section and is correspondingly arranged between the existing two shoulder bearing rail platforms 7.
Specifically, firstly cleaning a ballast bed 9 between two shoulder bearing rail platforms 7, then correspondingly drilling holes on the ballast bed 9 according to the intervals of waist-shaped bolt holes 102 at two ends of the base 1, and correspondingly presetting an insulating sleeve 302 in the drilled holes, wherein the length of the insulating sleeve 302 protruding out of the top surface of the ballast bed 9 is equal to the cast-in-situ height of the cast-in-situ boss 6. And pouring and forming a cast-in-place boss 6 on the ballast bed 9, and carrying out a subsequent adjustment process after the cast-in-place boss is formed.
(2) An insulating shock pad 4 with a certain thickness is arranged on the top surface of the cast-in-situ boss 6, and a base 1 is arranged above the insulating shock pad 4.
Before setting the base 1, each T-shaped bolt 201 is first passed through the corresponding spring strip fastening hole 103 from below the base 1, and the nut of the T-shaped bolt 201 is circumferentially limited by the limiting boss 105. Further, kidney-shaped distance adjusting rings 5 are respectively arranged in each kidney-shaped bolt hole 102, so that round through holes of the kidney-shaped distance adjusting rings 5 are vertically aligned with corresponding pre-buried insulating sleeves 302 coaxially, and further, connecting ends (namely bottoms) of the spiral spikes 301 sequentially penetrate through the kidney-shaped distance adjusting rings 5 and the insulating shock absorption pads 4 from top to bottom and are connected in the insulating sleeves 302 in a matching manner until a pressing cap of each spiral spike 301 abuts against the end face of the base 1, and the base 1 is pressed on the cast-in-situ boss 6.
Preferably, the adjustment distance of the track gauge of the steel rail 10 can be considered when the cast-in-situ boss 6 and the base 1 are arranged, and the waist-shaped distance adjusting ring 5 is a pair of concentric distance adjusting rings 501. Once the track gauge of the steel rail 10 is changed after the settlement adjustment system is set, the concentric gauge rings 501 can be replaced by the eccentric gauge rings 502 in pairs, so that the subsequent track gauge adjustment can be realized.
(3) The fasteners 8 are correspondingly arranged between the two shoulders 101 of the base 1, and preferably comprise a plurality of rail lower base plates, insulating gauge blocks, elastic strips, insulating stops and other structures as shown in fig. 1 and 2, namely the fasteners 8 available on the prior shoulder bearing rail platform 7 are adopted. And then the elastic strip is pressed on the insulated gauge blocks through the two T-shaped bolts 201 respectively matched with the gaskets 202 and the buckling nuts 203, and the steel rail 10 is pressed on the base through the two insulated gauge blocks, so that the adjustment of the height and the gauge of the steel rail 10 in the ballast bed sedimentation section is completed, and the schematic diagram of the rail structure after the adjustment is shown in fig. 12.
Obviously, when the height adjustment requirement of the adjusted steel rail 10 appears in the subsequent operation process, the adjustment can be realized by replacing the corresponding rail pad in the fastener 8; moreover, the subsequent adjustment of the rail 10 can also be achieved by replacement or adjustment of the relevant components of the fastener 8, such as replacement of the insulation gauge blocks or adjustment of the insulation gauge blocks, etc., which are similar to the adjustment process of the existing fastener systems, and will not be described in detail herein. In addition, the settlement adjusting system can be independently used as a fastener system on the track bed 9, the setting process is similar to the above process, the whole system is convenient to set and has high adjustment flexibility, and the corresponding setting of the shoulder-blocking rail-bearing platform 7 on the track bed is omitted.
Further, when the rail 10 after the adjustment is changed in the subsequent operation, the adjustment of the rail gauge may be achieved through the adjustment process as shown in fig. 11.
For example, the sedimentation adjustment system in which the track bed 9 is arranged transversely to the track is shown in the uppermost illustration in fig. 11, i.e. the track gauge of the two rails is 1435mm. At this time, if the right rail 10 needs to be adjusted to the right by 5mm, the concentric distance adjusting rings 501 on the right settlement adjusting system can be replaced by eccentric distance adjusting rings 502 with an eccentric distance of 5mm, and the eccentric distances of all the eccentric distance adjusting rings 502 are right, i.e. the track distance adjusting direction is the same as the eccentric distance direction. Similarly, if the left rail 10 needs to be adjusted to the left by 5mm, the adjustment method is similar to the above process, that is, the eccentric distance adjusting ring 502 with the eccentric distance of 5mm is replaced in the left sedimentation adjustment system with the eccentric distance facing to the left.
Of course, when the track gauges of the two rails 10 need to be reduced, the adjustment method is similar, and only the eccentric distance direction of the eccentric distance adjusting ring 502 needs to be correspondingly replaced. In addition, concentric distance adjusting rings 501 in two settlement adjusting systems arranged at intervals in the transverse direction of the ballast bed 9 can be replaced by eccentric distance adjusting rings 502 according to the requirement, and the eccentric distance directions of the two groups of eccentric distance adjusting rings 502 can be the same or different; when the eccentric distance directions are different, the eccentric distance directions can be set away from each other or can be set in opposite directions. The adjusted gauge is greatest (as illustrated 1445 mm) when the eccentricity orientations are away from each other, and least (as illustrated 1425 mm) when the eccentricity orientations are disposed in opposition. However, it should be noted that the eccentric distance of each eccentric distance adjusting ring 502 provided on the same base 1 is the same, and the eccentric distances of each eccentric distance adjusting ring 502 are equal.
The settlement adjusting system suitable for the ballastless track with the shoulder has the advantages of simple structure and simple and convenient arrangement, can accurately realize the rapid settlement adjustment of the settlement section of the ballast bed of the ballastless track with the shoulder, accurately realize the height adjustment and the track gauge adjustment of the steel rail, and improve the efficiency and the accuracy of the settlement adjustment of the ballast bed; meanwhile, through arranging waist-shaped bolt holes on the base and arranging waist-shaped distance adjusting rings corresponding to the waist-shaped bolt holes, through the replacement of the concentric distance adjusting rings and the corresponding eccentric distance adjusting rings, the corresponding adjustment of the rail gauge of the steel rail after the settlement adjusting system is arranged can be realized, the efficiency and the accuracy of rail gauge adjustment of the steel rail are further improved, the reliable application of the ballastless track with the shoulder is ensured, the application cost of the ballastless track with the shoulder is reduced, and the ballastless track with the shoulder has better application prospect and popularization value.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The settlement adjusting system suitable for the ballastless track with the shoulder is characterized by comprising a plurality of settlement adjusting units arranged on a settlement section of a ballast bed;
The settlement adjusting unit comprises a cast-in-situ boss, a base, an elastic strip buckling and pressing assembly and a ballast bed connecting assembly;
The cast-in-situ boss is cast-in-situ between two shoulder bearing rail platforms on the track bed, and the casting thickness corresponds to the height adjustment of the steel rail;
The base comprises a bottom plate with a plate-shaped structure, and at least one through hole, namely a bolt hole, penetrating through two end faces of the bottom plate is respectively formed at two ends of the bottom plate; the two ends of the top surface of the bottom plate are respectively provided with a retaining shoulder, and the steel rail can be tightly pressed between the two retaining shoulders through a fastener; a plurality of elastic strip fastening holes are formed in the bottom plate between the two retaining shoulders, corresponding to the fasteners;
The elastic strip buckling component comprises a T-shaped bolt, a gasket and a buckling nut, wherein the T-shaped bolt can penetrate through the bottom of the elastic strip fastening hole and extend upwards to be matched with the fastener, and then the elastic strip is tightly pressed through the buckling nut and the gasket; the elastic strip fastening hole is a stepped hole, the aperture of one side, which is close to the bottom surface of the base, is larger than that of the other side, a limiting boss is arranged in the stepped hole, and a nut of the T-shaped bolt is locked in the annular direction after being abutted against the limiting boss;
The ballast bed connecting assembly comprises a screw spike and an insulating sleeve; the insulating sleeve is vertically embedded in the cast-in-situ boss and extends into the ballast bed from the bottom of the cast-in-situ boss, the embedded position of the insulating sleeve corresponds to the opening position of the bolt hole on the bottom plate, and the base is connected and fixed to meet the distance adjusting requirement of the steel rail; one end of the screw spike is a connecting end, the other end of the screw spike is provided with a pressing cap, the screw spike penetrates through the bolt hole through the connecting end of the screw spike and is connected in the insulating sleeve in a matched mode, and the pressing cap abuts against the top surface of the base;
The bolt holes are kidney-shaped bolt holes, and kidney-shaped distance adjusting rings are coaxially embedded in the bolt holes; the waist-shaped distance-adjusting ring comprises a body with a waist-shaped structure, wherein a circular through hole penetrating through two end surfaces is formed in the body, and the distance between the axis of the circular through hole and the axis of the body in the transverse direction of the steel rail is zero or not zero so as to form a concentric distance-adjusting ring and an eccentric distance-adjusting ring;
the axis of circular through-hole with the axis of body is in the horizontal interval setting of track, just the long diameter direction of kidney bolt hole is the track transversely.
2. The settlement adjusting system suitable for the shoulder ballastless track of claim 1, wherein the eccentric distance adjusting rings have various optional size specifications, the eccentric distances of the eccentric distance adjusting rings are different, and the eccentric distance of the eccentric distance adjusting rings is 1 mm-15 mm.
3. The settlement adjustment system suitable for the shoulder ballastless track according to claim 1 or 2, wherein an insulating shock pad is arranged between the base and the cast-in-situ boss.
4. A settlement adjustment method suitable for a ballastless track with a shoulder, which is realized by using the settlement adjustment system suitable for the ballastless track with the shoulder according to any one of claims 1 to 3, and comprises the following steps:
(1) Drilling holes between two shoulder bearing rail platforms of the ballast bed sedimentation section respectively, and enabling the drilling holes to meet the track gauge setting requirement of the steel rail;
(2) Respectively arranging insulating sleeves in the drilled holes, and enabling the tops of the insulating sleeves to protrude out of the top surface of the ballast bed;
(3) Casting a cast-in-situ boss in a cast-in-situ mode between the two shoulder bearing rail platforms, wherein the cast-in-situ height of the cast-in-situ boss corresponds to the height adjustment quantity of the steel rail, and the insulating sleeve between the two shoulder bearing rail platforms is fully embedded in the corresponding cast-in-situ boss;
(4) T-shaped bolts are respectively arranged in the elastic strip fastening holes of the base, so that the connecting ends of the T-shaped bolts extend out of the top surface of the base; then placing the base on the cast-in-situ boss, and enabling each kidney-shaped bolt hole to be vertically aligned with a corresponding insulating sleeve;
(5) A kidney-shaped distance adjusting ring is respectively arranged in each kidney-shaped bolt hole, so that a circular through hole of each kidney-shaped distance adjusting ring is coaxially aligned with the insulating sleeve; the screw spikes are respectively arranged corresponding to the insulating sleeves, the screw spikes are controlled to pass through the corresponding circular through holes and then are connected with the insulating sleeves in a matching way, and the pressing caps of the screw spikes are abutted against the base;
(6) The steel rail is placed on the base, fasteners are respectively arranged on two sides of the steel rail, so that each T-shaped bolt respectively penetrates through the fasteners and is locked by the buckling nuts, and the settlement adjustment of the steel rail is completed.
5. The settlement adjusting method for shoulder ballastless track of claim 4, wherein in step (5), the kidney-shaped distance adjusting rings are concentric distance adjusting rings.
6. The settlement adjusting method for shoulder ballastless track of claim 5, wherein for the steel rail which is completed in the step (6), when the steel rail needs to be subjected to track gauge adjustment, the adjusting process comprises:
Selecting an eccentric distance adjusting ring with the eccentric distance equal to the track distance adjusting amount; and respectively replacing each concentric distance-adjusting ring on the base with the eccentric distance-adjusting ring, so that the eccentric distance of each eccentric distance-adjusting ring has the same direction, and the eccentric distance direction is the same as the adjustment direction of the track gauge.
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| CN113338084B (en) * | 2021-07-13 | 2024-02-09 | 武汉坤能轨道系统技术有限公司 | Failure remediation method suitable for pillow-free ballast bed direct-buried base plate |
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| CN105369701B (en) * | 2015-12-03 | 2017-04-26 | 安徽省巢湖铸造厂有限责任公司 | Medium-low speed magnetic suspension track fastener mounting tool |
| CN107217550A (en) * | 2017-07-10 | 2017-09-29 | 中铁第四勘察设计院集团有限公司 | A kind of truss bars concrete folding plate, non-fragment orbit and construction method |
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