CN214033183U - Integral ballast bed structure of broken soft rock roadbed of underground mine - Google Patents
Integral ballast bed structure of broken soft rock roadbed of underground mine Download PDFInfo
- Publication number
- CN214033183U CN214033183U CN202021945254.8U CN202021945254U CN214033183U CN 214033183 U CN214033183 U CN 214033183U CN 202021945254 U CN202021945254 U CN 202021945254U CN 214033183 U CN214033183 U CN 214033183U
- Authority
- CN
- China
- Prior art keywords
- concrete layer
- bed
- soft rock
- roadbed
- underground mine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
An integral ballast bed structure of a broken soft rock roadbed of an underground mine belongs to the technical field of underground mine ballast beds and is used for improving the strength of the underground mine ballast beds. The technical scheme is as follows: the bottom steel plate is laid on the surface of the broken soft rock roadbed leveled by the fine mortar, a track bed concrete layer is poured on the bottom steel plate, the reinforcing mesh is poured inside the track bed concrete layer, and the reinforced concrete sleeper is placed above the track bed concrete layer and is poured with the track bed concrete layer into a whole. The utility model has the advantages of simple structure, convenient construction, cost are lower, the efficiency of construction is higher, the practicality is strong, can reduce the ballast bed that broken soft rock road bed arouses by a wide margin and warp and transportation track, reduced mine car and locomotive and fallen the way accident, improved the mine conveying efficiency in the pit.
Description
Technical Field
The utility model relates to an integral ballast bed structure suitable for broken soft rock road bed in underground mine belongs to underground mine ballast bed technical field.
Background
The underground mine ore is transported by a rail locomotive, a special rail transportation middle section is arranged in a pit, the ores in the mining areas are conveyed to a transportation middle section loading station through ore pass shafts of all the mining areas, are drawn to a mine car through an ore drawing machine, are conveyed to a main ore pass shaft unloading chamber through traction of an electric locomotive for unloading operation, and enter a chute breaking and main shaft lifting system along a main ore pass shaft to be lifted to an earth surface grinding and separation system after unloading.
In the underground transportation middle section of the mine, except for key parts such as a subline well mouth, an ore and rock main unloading chamber access lane, a loading chamber access lane and the like, a concrete integral ballast bed is adopted, and a hard gravel ballast bed is adopted in general road sections. The concrete integral ballast bed is suitable for hard foundations such as stone ballast and the like, and when the concrete integral ballast bed meets broken soft rock ballast, a concrete replacement mode is usually adopted, but the replacement construction cost is high, the underground roadway space is limited, the mechanical construction is not easy, the replacement period is long, and the construction progress is influenced, so that the reinforcement improvement of other modes is very necessary for the ballast bed of the broken soft rock ballast bed of the underground mine.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a whole ballast bed structure of broken soft rock road bed of underground mine is provided, this kind of whole ballast bed structure need not carry out the concrete replacement to broken soft rock road bed, and structural strength is good, and the construction is quick, can avoid broken soft rock road bed to sink and lead to the transportation track to warp, prevents that the locomotive from falling the way, improves conveying efficiency.
The technical scheme for solving the technical problems is as follows:
the utility model provides an underground mine broken soft rock roadbed's whole roadbed structure, it includes bottom steel sheet, roadbed concrete layer, reinforcing bar net, reinforced concrete pillow, the bottom steel sheet is laid on the broken soft rock roadbed surface after making level with fine thick liquid sand material, roadbed concrete layer pours on the bottom steel sheet, reinforcing bar net pours inside roadbed concrete layer, reinforced concrete pillow places roadbed concrete layer top to pour as an organic whole with roadbed concrete layer.
According to the integral roadbed structure of the underground mine broken soft rock roadbed, the top surface of a roadbed concrete layer is provided with the water flowing groove, the length direction of the water flowing groove slopes to the ditch, the roadbed concrete layer is provided with the transverse expansion joint in the length direction of the roadbed, the position of the expansion joint is staggered with the steel rail joint, and the distance between the adjacent expansion joints is 12.5-25 m.
Above-mentioned whole roadbed structure of broken soft rock road bed in underground mine, the longitudinal reinforcement overlap joint department of reinforcing bar net adopts two face welded structure, and welding seam length is not less than 5 reinforcing bar diameters.
The utility model has the advantages that:
the bottom steel plate of the utility model is contacted with the surface of the broken soft rock roadbed, so that an integral plane can be formed, the bottom strength of the ballast bed is increased, and the ballast bed and the upper load are dispersed; the concrete layer of the track bed and the steel wire mesh are integrally poured to form a main body of the integral track bed, the main body has high-strength tensile and compressive properties, the stability of the integral track bed is guaranteed, the track surface deformation caused by the track bed deformation is avoided, and the flatness of a transportation track surface is guaranteed; the reinforced concrete sleeper and the concrete layer of the track bed are poured into a whole, so that the laid rail is stable and firm.
The utility model has the advantages of simple structure, convenient construction, cost are lower, the efficiency of construction is higher, the practicality is strong, can reduce the ballast bed that broken soft rock road bed arouses by a wide margin and warp and transportation track, reduced mine car and locomotive and fallen the way accident, improved the mine conveying efficiency in the pit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figures are labeled as follows: broken soft rock roadbed 1, bottom steel plate 2, roadbed concrete layer 3, reinforcing mesh 4, reinforced concrete sleeper 5, ditch 6.
Detailed Description
The utility model discloses constitute by bottom steel sheet 2, ballast bed concrete layer 3, reinforcing bar net 4, reinforced concrete pillow 5.
The figure shows that the bottom steel plate 2 is laid on the surface of the broken soft rock roadbed 1 which is leveled by the fine mortar sand, and the bottom steel plate 2 is in contact with the surface of the broken soft rock roadbed 1, so that an integral plane can be formed, the strength of the bottom of the ballast bed is increased, and the ballast bed and the upper load are dispersed.
The track bed concrete layer 3 is shown as being cast on the underlying steel plate 2, and the reinforcing mesh 4 is cast inside the track bed concrete layer 3. The concrete layer of the ballast bed and the steel wire mesh are integrally poured, and the concrete layer is a main body of the integral ballast bed and has high-strength tensile and compressive properties. The longitudinal steel bar lap joint of the steel bar mesh 4 adopts a two-side welding structure, and the length of a welding seam is not less than 5 times of the diameter of the steel bar.
The top surface of the concrete layer 3 of the ballast bed is provided with a water flowing groove, and the water flowing groove slopes towards the ditch 6 in the length direction, so that the gravity flow is realized, and the water accumulation is avoided. The concrete layer 3 of the track bed is provided with transverse expansion joints in the length direction of the track bed, the positions of the expansion joints are staggered with the rail joints, and the distance between adjacent expansion joints is 12.5-25 m.
The reinforced concrete sleeper 5 is shown placed above the ballast bed concrete layer 3 and cast integrally with the ballast bed concrete layer 3. The steel rail is laid on the reinforced concrete sleeper 5, so that the laid rail is stable and firm.
The utility model discloses a construction method as follows:
firstly, leveling the surface of a broken soft rock roadbed 1 at the bottom of an integral ballast bed by using fine mortar;
then, laying a bottom steel plate 2, wherein the length of the bottom steel plate 2 is determined according to the length of the whole track bed;
then, a track bed concrete layer 3 is poured on the bottom steel plate 2, the track bed concrete layer 3 is made of C30 concrete, a reinforcing mesh 4 is configured, the thickness of a protective layer of the reinforcing mesh 4 is 35mm, the overall pouring thickness of the track bed concrete layer 3 is 350mm, pouring is carried out twice, and the first pouring thickness is 246 mm;
placing the reinforced concrete sleeper 5 after the first pouring strength of the track bed concrete layer 3 reaches the standard, and performing second pouring after the placement is finished, wherein the pouring thickness is 104 mm;
accumulated water in the roadbed needs to be drained before the roadbed concrete layer 3 is poured, a water flowing groove is arranged on the top surface of the roadbed concrete layer 3, and the water flowing groove slopes to a ditch 6, so that the self-flowing is realized, and the accumulated water is avoided;
the longitudinal steel bar lap joint of the steel bar mesh 3 needs to be welded, two sides are adopted for welding, the length of a welding seam is not less than 5 times of the diameter of the steel bar, and the height of the welding seam is 8 mm;
the concrete layer 3 of the track bed is provided with transverse expansion joints in the length direction of the track bed, the positions of the expansion joints are staggered with the rail joints, and the distance between adjacent expansion joints is 12.5-25 m.
The utility model discloses an embodiment as follows: the thickness of the bottom layer steel plate 2 is 20mm, and the width is 2000 mm;
the concrete layer 3 of the ballast bed is made of C30 concrete and is integrally cast with the thickness of 350 mm;
the length of the reinforced concrete pillow 5 is 1700mm, the width is 200mm, and the height is 150 mm;
the steel rail adopts a 43kg/m steel rail, and the standard length is 12.5 m.
Claims (3)
1. The utility model provides an integral ballast bed structure of broken soft rock road bed of underground mine which characterized in that: it includes bottom steel sheet (2), railway roadbed concrete layer (3), reinforcing bar net (4), reinforced concrete pillow (5), bottom steel sheet (2) are laid and are being made level broken soft rock road bed (1) surface after with fine mortar sand material, railway roadbed concrete layer (3) are pour on bottom steel sheet (2), reinforcing bar net (4) are pour inside railway roadbed concrete layer (3), reinforced concrete pillow (5) are placed in railway roadbed concrete layer (3) top to pour as an organic whole with railway roadbed concrete layer (3).
2. The monolithic roadbed structure of the underground mine crushed soft rock roadbed according to claim 1, wherein: the top surface of the track bed concrete layer (3) is provided with a water flowing groove, the length direction of the water flowing groove slopes to the ditch (6), the track bed concrete layer (3) is provided with transverse expansion joints in the length direction of the track bed, the positions of the expansion joints are staggered with the steel rail joints, and the distance between the adjacent expansion joints is 12.5-25 m.
3. The monolithic roadbed structure of the underground mine crushed soft rock roadbed according to claim 1, wherein: the longitudinal steel bar lap joint of the steel bar mesh (4) adopts a two-side welding structure, and the length of a welding seam is not less than 5 times of the diameter of the steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021945254.8U CN214033183U (en) | 2020-09-08 | 2020-09-08 | Integral ballast bed structure of broken soft rock roadbed of underground mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021945254.8U CN214033183U (en) | 2020-09-08 | 2020-09-08 | Integral ballast bed structure of broken soft rock roadbed of underground mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214033183U true CN214033183U (en) | 2021-08-24 |
Family
ID=77349552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021945254.8U Active CN214033183U (en) | 2020-09-08 | 2020-09-08 | Integral ballast bed structure of broken soft rock roadbed of underground mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214033183U (en) |
-
2020
- 2020-09-08 CN CN202021945254.8U patent/CN214033183U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103276639B (en) | Roadbed structure for deep soft soil region | |
| CN208762812U (en) | A kind of steel board connection structure on assembled road surface | |
| CN211973067U (en) | Road and bridge connection transition structure for preventing and treating vehicle bump at bridge head | |
| CN206219897U (en) | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure | |
| CN214033183U (en) | Integral ballast bed structure of broken soft rock roadbed of underground mine | |
| CN212801068U (en) | Reinforced concrete integral crossing | |
| CN218059976U (en) | Reinforced concrete ballast retaining wall for gravel road bed | |
| CN206071610U (en) | For administering the steel reinforced concrete antiarch of floor lift in gallery and the combinative structure of anchor pole | |
| CN214271529U (en) | Foam concrete light roadbed structure above subway tunnel | |
| CN110359375A (en) | The construction method of precast segment girder precast field under a kind of bridge | |
| CN214423016U (en) | Combined track beam structure | |
| CN106283950B (en) | Medium-and low-speed maglev traffic engineering two-wire embankment location pile foundation joist type support rail beam transition section structure | |
| CN114941258A (en) | Anti-cracking construction method for concrete track bed slab of CRTS I type double-block ballastless track of high-speed railway tunnel | |
| CN210482091U (en) | Culvert and road culvert transition structure | |
| CN110438855B (en) | Construction method for backfilling underneath-crossing railway bridge and culvert road bed | |
| CN113106790A (en) | Prefabricated plate type ballastless track structure | |
| CN110359924B (en) | Coal mine underground roadway cross three-dimensional structure | |
| CN111926649A (en) | Reinforced integrally-built crossing plate for railway special line and line rail fixing device | |
| CN106283939B (en) | Medium-and low-speed maglev two-wire excavation location pile foundation joist type support rail beam transition section structure | |
| CN110939019A (en) | Box type roadbed structure and heavy-duty railway roadbed | |
| CN106283956B (en) | Medium-and low-speed maglev two-wire excavation location pile foundation combined type support rail beam transition section structure | |
| CN215104290U (en) | Prefabricated plate type ballastless track structure | |
| CN106283973B (en) | Medium-and low-speed maglev traffic engineering two-wire excavation location independence pier stud type support rail beam transition section structure | |
| CN204417945U (en) | A kind of road foundation depression prosthetic device | |
| CN217758406U (en) | Shield constructs closely wears reinforced structure of big section rainwater box culvert down |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |