CN211174216U - There is tiny fragments of stone, coal, etc. track tunnel center ditch to overhaul work well - Google Patents

Abstract

The utility model belongs to the technical field of tunnel engineering, in particular to a ballast track tunnel center ditch maintenance working well, which comprises a well body and a well cover plate, wherein the well body comprises an upper well body and a lower well body, a supporting frame is arranged at the top of the upper well body along the circumferential direction of the upper well body, and the periphery of the well cover plate is supported on the supporting frame; the bottom of the upper well body is detachably connected with the top of the lower well body, and the bottom of the lower well body is detachably connected with the side wall of the central ditch. The utility model provides a central ditch maintenance working well of a ballast track tunnel adopts an assembled type, which is convenient for transportation and splicing; when the central ditch is blocked and needs to be overhauled, the bottom end of the well body is fixed with the side wall of the central ditch, the central ditch is prevented from being blocked due to stone ballast and the like falling into the central ditch, workers and equipment can enter the central ditch from the well body for maintenance, the problem that the central ditch is unsmooth in drainage due to blocking is fundamentally solved, and the safety of a tunnel structure is ensured.

Description

There is tiny fragments of stone, coal, etc. track tunnel center ditch to overhaul work well

Technical Field

The utility model belongs to the technical field of tunnel engineering, concretely relates to there is tiny fragments of stone, coal, etc. track tunnel center ditch to overhaul work well.

Background

At present, a bilateral ditch and a central cover plate ditch are generally arranged in a tunnel, drain holes are arranged at the positions of two side wall feet for draining, wherein the central cover plate ditch bears the main drainage function, and the bilateral ditch is used for auxiliary drainage. The two side ditches are located on the side of the side wall of the tunnel, and the central cover plate ditch is located below the ballast bed between two lines. And a phi 50 annular drainage blind pipe (a perforated corrugated pipe) is arranged behind the two linings, two ends of the annular blind ditch and two ends of the longitudinal blind ditch are directly communicated with the tunnel side ditch, and the middle part of each section of the longitudinal blind ditch is provided with a phi 50PVC drainage hole connected to the tunnel side ditch. The middle part of each section of longitudinal blind ditch is provided with a phi 50PVC drainage hole connected to the side ditch of the tunnel. Underground water behind the lining is collected through the annular blind pipes and the longitudinal blind pipes and then discharged into the side ditches, is collected and precipitated through the side ditches, is introduced into the central ditches through PVC transverse water guide pipes at intervals of 30 m phi 100, and is discharged out of the hole through the central ditches.

At present, a central ditch in a ballast track tunnel generally adopts a central pipe ditch or a central cover plate ditch, and a schematic cross-sectional view of the central ditch is shown in fig. 1. As the line in the tunnel is a ballast track bed, in order to meet the related requirements of the maintenance rules of the ballast track line of the high-speed railway, stone ballasts need to be filled between two lines to meet the slope-releasing regulations of the track bed, and 0.7m of stone ballasts cover the upper part of the central trench cover plate. Because the central cover plate ditch is not provided with the inspection well, the inspection and the maintenance of the central cover plate ditch need to be carried out in combination with the maintenance of the ballast bed; when a large amount of surface water seeps downwards after the heavy rainfall of the surface, the actual central ditch water cross section is smaller than the designed cross section due to the blockage of construction residues such as stone, ballast and the like, so that the central ditch drainage is not smooth and seriously blocked, and the water level rises to overflow the ballast bed, so that the line height change of the track structure occurs, and a major traffic accident can be caused.

Disclosure of Invention

In order to overcome the deficiencies in the prior art, the utility model aims at providing a there is tiny fragments of stone, coal, etc. track tunnel center ditch maintenance work well, can solve existing high-speed railway effectively and have the maintenance difficult problem that tiny fragments of stone, coal, etc. tunnel center ditch blockked up.

In order to achieve the purpose, the technical scheme of the utility model is that the ballast track tunnel central ditch maintenance working well comprises a well body and a well cover plate, wherein the well body comprises an upper well body and a lower well body, the top of the upper well body is provided with a supporting frame along the circumferential direction of the upper well body, and the periphery of the well cover plate is supported on the supporting frame; the bottom of the upper well body is detachably connected with the top of the lower well body, and the bottom of the lower well body is detachably connected with the side wall of the central ditch.

Furthermore, the support frame includes along the support angle steel that upper strata well body inboard set up, one of them side limb of support angle steel with the lateral wall of upper strata well body is fixed, the well lid board support in on the other side limb of support angle steel.

Furthermore, a rubber gasket is arranged between the well cover plate and the support angle steel.

Furthermore, a first connecting angle steel is arranged at the bottom of the upper-layer well body, and one side limb of the first connecting angle steel is fixed with the side wall of the upper-layer well body; a second connecting angle steel is arranged at the top of the lower well body, and one side limb of the second connecting angle steel is fixed with the side wall of the lower well body; and the other side limb of the first connecting angle steel and the other side limb of the second connecting angle steel are fixed through a bolt.

Furthermore, the bottom of the lower well body is provided with a positioning angle steel, one side limb of the positioning angle steel is fixed with the side wall of the lower well body, and the other side limb is connected with the side wall of the central ditch through a chemical anchor bolt.

Furthermore, a rubber gasket is arranged between the side limb of the positioning angle steel and the side wall of the central ditch.

Further, the thickness of the rubber gasket is 8-12 mm.

Furthermore, a plurality of reserved through holes are formed in the well cover plate.

Furthermore, the lower-layer well body comprises four lower side wall steel plates which surround to form a lower overhaul working space; the four lower side wall steel plates are integrally formed or connected by welding.

Furthermore, the upper-layer well body comprises four upper side wall steel plates which enclose an upper overhaul working space; go up to overhaul the workspace with overhaul workspace intercommunication down, four go up side wall steel sheet integrated into one piece or through welded connection.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model provides a there is tiny fragments of stone, coal, etc. center ditch maintenance work well in tunnel center ditch simple structure, it is convenient to install, when the center ditch takes place to block up and needs to be overhauld, the bottom and the center ditch lateral wall of well body can be dismantled and be connected, the well body keeps apart the access passage in the well with the extrawell tiny fragments of stone, prevent that stone, coal, etc. from falling into the center ditch and causing the center ditch to block up, then take out the center ditch apron of maintenance work well below, the center ditch communicates with the work well and forms the access passage, staff and equipment can enter into the center ditch from the well body and maintain, solve the maintenance difficult problem that the existing high-speed railway has tiny fragments of stone, coal, etc. to block up the center ditch of tunnel and block up effectively, fundamentally has solved the center ditch because the not smooth problem of drainage that the jam;

(2) the utility model provides a there is tiny fragments of stone, coal, etc. track tunnel center ditch maintenance work well's well body adopts the upper well body and the lower floor well body to assemble and form, the transportation of the upper well body of being convenient for and the lower floor well body and assemble.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a central cover plate trench in an existing tunnel;

fig. 2 is a schematic perspective view of a trench maintenance working well in the center of a ballast track tunnel provided by the embodiment of the present invention;

fig. 3 is a plan layout view of a trench maintenance working well in the center of a ballast track tunnel provided by the embodiment of the present invention;

FIG. 4 is a view A-A of FIG. 3;

FIG. 5 is a view B-B of FIG. 3;

fig. 6 is a plan view of a well cover plate of a trench maintenance working well in the center of a ballast track tunnel provided by the embodiment of the present invention;

FIG. 7 is a view C-C of FIG. 6;

FIG. 8 is a D-D view of FIG. 6;

in the figure: 1. the upper well body, 101, go up the side wall steel sheet, 2, the lower floor well body, 201, the side wall steel sheet down, 3, the well cover board, 4, support angle steel, 5, first angle steel of connection, 6, second angle steel of connection, 7, the bolt, 8, location angle steel, 9, chemical crab-bolt, 10, rubber packing ring, 11, central ditch, 12, central ditch lateral wall, 13, central ditch apron, 14, reservation through-hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 2, the embodiment provides a ballast track tunnel central ditch maintenance working well, which comprises a well body and a well cover plate 3, wherein the well body comprises an upper well body 1 and a lower well body 2, a supporting frame is arranged at the top of the upper well body 1 along the circumferential direction of the upper well body 1, and the periphery of the well cover plate 3 is supported on the supporting frame; the bottom of the upper well body 1 is detachably connected with the top of the lower well body 2, and the bottom of the lower well body 2 is detachably connected with the central ditch side wall 12. The shaft body of the overhaul working well of the ballast track tunnel central ditch 11 provided by the embodiment is formed by assembling an upper layer shaft body 1 and a lower layer shaft body 2, so that the upper layer shaft body 1 and the lower layer shaft body 2 can be conveniently transported and assembled; the central ditch 11 is arranged along a ballast track tunnel, the central ditch 11 is covered and sealed by a plurality of central ditch cover plates 13, when the central ditch 11 is blocked, the central ditch is preliminarily positioned to the corresponding position of the central ditch 11, then the ballast above the central ditch cover plates 13 is cleaned, a space is provided for the installation of a working well, the top end of the side wall 12 of the central ditch is cleaned and ground, the bottom of the lower well body 2 is fixed with the top end of the side wall 12 of the central ditch, then the upper well body 1 and the lower well body 2 are assembled and fixed, and the ballast outside the well is isolated from the maintenance space in the well; then taking away the central ditch cover plate 13, communicating the central ditch 11 with the well body to form an overhaul channel, allowing a worker to enter from the upper part of the well body for overhaul, and covering the well cover plate 3 after dredging the central ditch 11 to prevent stone ballast and the like from falling into the well body; the problem of maintenance difficulty of blockage of the central ditch 11 of the ballast tunnel of the existing high-speed railway is effectively solved, the problem of unsmooth drainage caused by blockage of the central ditch 11 is fundamentally solved, and the safety of the tunnel structure is ensured.

Further, as shown in fig. 2 to 5, the supporting frame includes supporting angle steels 4 arranged around the inner side of the upper-layer shaft body 1, the supporting angle steels 4 on the inner sides of the four upper side-wall steel plates 101 are enclosed to form a rectangle, one side limb of the supporting angle steel 4 is fixed to the side wall of the upper-layer shaft body 1, and the well cover plate 3 is supported on the other side limb of the supporting angle steel 4. In the embodiment, the supporting frame can be arranged on the inner side of the upper well body 1 or on the outer side of the upper well body 1, and the periphery of the well cover plate 3 is supported on the other side limb of the supporting angle steel 4 of the supporting frame; preferably, the welding has the handle on the well lid board 3, and the handle can be the galvanized steel bar, and it is more convenient to load and unload well lid board 3 through the handle. Furthermore, a rubber gasket 10 is arranged between the well cover plate 3 and the support angle steel 4, so that the sealing performance of the well cover plate 3 and the upper-layer well body 1 is improved.

Further, as shown in fig. 4-5, a first connecting angle steel 5 is arranged at the bottom of the upper-layer well body 1, and one of the side limbs of the first connecting angle steel 5 is fixed with the side wall of the upper-layer well body 1; a second connecting angle steel 6 is arranged at the top of the lower-layer well body 2, and one side limb of the second connecting angle steel 6 is fixed with the side wall of the lower-layer well body 2; the other side limb of the first connecting angle steel 5 and the other side limb of the second connecting angle steel 6 are fixed through a bolt 7. The other limb of the first angle steel 5 of this embodiment and the other limb of second angle steel 6 all are equipped with bolt 7 matched with mounting hole, assemble upper well body 1 and lower floor well body 2 through bolt 7 and angle steel and be the well body, assemble the process simply, easily fix a position and realize, improve the efficiency of construction.

Furthermore, as shown in fig. 4-5, a positioning angle steel 8 is arranged at the bottom of the lower well body 2, one side limb of the positioning angle steel 8 is fixed with the side wall of the lower well body 2, and the other side limb is connected with the central ditch side wall 12 through a chemical anchor bolt 9. The other side limb of the location angle steel 8 of this embodiment is equipped with the mounting hole with the cooperation of chemical anchor bolt 9, after clearing up, polishing the top of central ditch lateral wall 12, adopts chemical anchor bolt 9 to keep apart extrawell railway ballast and interior maintenance space with the fixed central ditch lateral wall 12 in bottom of the well body 2 of lower floor. Furthermore, a rubber gasket 10 is arranged between the side limb of the positioning angle steel 8 and the central ditch side wall 12, so that the sealing performance of the lower well body 2 and the central ditch side wall 12 is improved. Preferably, the thickness of the rubber gasket 10 is 8 to 12 mm.

The well cover plate 3 of this embodiment adopts the cast iron apron, and further, as shown in fig. 6-8, be equipped with a plurality of reserved through-holes 14 on the well cover plate 3, the size and the interval of a plurality of reserved through-holes 14 can be set for as required, when installing and dismantling well cover plate 3, because the sealed internal gas pressure's reason can cause to separate well cover plate 3 has the difficulty, and reserved through-hole 14 can realize the inside and outside air current circulation of working well, keeps inside and outside atmospheric pressure balanced, is convenient for load and unload.

Further, as shown in fig. 2, the lower well body 2 includes four lower side wall steel plates 201, and the four lower side wall steel plates 201 enclose to form a lower overhaul working space; the four lower side wall steel plates 201 are integrally formed or connected by welding. Furthermore, the upper well body 1 comprises four upper side wall steel plates 101, and the four upper side wall steel plates 101 enclose to form an upper overhaul working space; go up to overhaul the workspace with overhaul workspace intercommunication down, four go up side wall steel sheet 101 integrated into one piece or through welded connection. The upper well body 1 and the lower well body 2 of the overhaul working well of this embodiment are the steel construction, and the upper well body 1, the lower well body 2 can directly adopt the steel construction rectangular pipe of cun wall thickness 8mm, also can adopt four 8 mm's of wall thickness steel sheet to adopt fillet weld welding and steel sheet to weld and form.

When the central ditch 11 is blocked, the concrete maintenance process of the ballast track tunnel central ditch 11 maintenance working well is as follows:

preliminarily positioning to a corresponding central ditch 11, cleaning ballast above a central ditch cover plate 13, providing a space for installing a working well, cleaning and grinding the top end of a central ditch side wall 12, fixedly connecting a positioning angle steel 8 at the bottom of a lower layer well body 2 with the top of the existing central ditch side wall 12 by adopting a chemical anchor bolt 9, then fixedly connecting a second connecting angle steel 6 at the top of the lower layer well body 2 with a first connecting angle steel 5 at the bottom of an upper layer well body 1 by a bolt 7, taking out the central ditch cover plate 13 below the working well before the central ditch 11 is overhauled, finally backfilling the ballast, communicating the central ditch 11 with the well body to form an overhaul channel, isolating the outside from the inner space by the well body, allowing a worker and an overhaul tool to enter the central ditch 11 through the overhaul channel for overhauling, covering the well cover plate 3 after the ditch is dredged, and stone ballast and the like are prevented from falling into the well.

This embodiment is short, under the difficult condition of construction in skylight time, high-efficient, convenient installation work well, has not only practiced thrift the resource, and the cost is reduced has still reduced the engineering construction degree of difficulty. The working wells of the embodiment can be arranged at a position of 50m in the longitudinal direction, and the working wells are arranged in size to meet the requirements of maintenance (width, length, relative ditch height and the like).

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a there is tiny fragments of stone, coal, etc. track tunnel center ditch to overhaul work well which characterized in that: the well comprises a well body and a well cover plate, wherein the well body comprises an upper well body and a lower well body, a supporting frame is arranged at the top of the upper well body along the circumferential direction of the upper well body, and the periphery of the well cover plate is supported on the supporting frame; the bottom of the upper well body is detachably connected with the top of the lower well body, and the bottom of the lower well body is detachably connected with the side wall of the central ditch.

2. The ballast track tunnel center ditch service work well of claim 1, characterized in that: the support frame includes along the support angle steel that the upper strata well body inboard set up, one of them side limb of support angle steel with the lateral wall of the upper strata well body is fixed, the well lid board support in on the other side limb of support angle steel.

3. The ballast track tunnel center ditch service work well of claim 2, characterized in that: and a rubber gasket is arranged between the well cover plate and the support angle steel.

4. The ballast track tunnel center ditch service work well of claim 1, characterized in that: a first connecting angle steel is arranged at the bottom of the upper-layer well body, and one side limb of the first connecting angle steel is fixed with the side wall of the upper-layer well body; a second connecting angle steel is arranged at the top of the lower well body, and one side limb of the second connecting angle steel is fixed with the side wall of the lower well body; and the other side limb of the first connecting angle steel and the other side limb of the second connecting angle steel are fixed through a bolt.

5. The ballast track tunnel center ditch service work well of claim 1, characterized in that: the bottom of the lower well body is provided with a positioning angle steel, one side limb of the positioning angle steel is fixed with the side wall of the lower well body, and the other side limb is connected with the side wall of the central ditch through a chemical anchor bolt.

6. The ballast track tunnel center ditch service work well of claim 5, characterized in that: and a rubber gasket is arranged between the side limb of the positioning angle steel and the side wall of the central ditch.

7. The ballast track tunnel center ditch service work well of claim 3 or 6, characterized in that: the thickness of the rubber gasket is 8-12 mm.

8. The ballast track tunnel center ditch service work well of claim 1, characterized in that: and a plurality of reserved through holes are formed in the well cover plate.

9. The ballast track tunnel center ditch service work well of claim 1, characterized in that: the lower-layer well body comprises four lower side wall steel plates which surround to form a lower overhaul working space; the four lower side wall steel plates are integrally formed or connected by welding.

10. The ballast track tunnel center ditch service work well of claim 9, characterized in that: the upper-layer well body comprises four upper side wall steel plates which enclose an upper overhaul working space; go up to overhaul the workspace with overhaul workspace intercommunication down, four go up side wall steel sheet integrated into one piece or through welded connection.

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