CN215669987U - Prefabricated ditch and fixed big lane ditch spliced by prefabricated ditch - Google Patents
Prefabricated ditch and fixed big lane ditch spliced by prefabricated ditch Download PDFInfo
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- CN215669987U CN215669987U CN202121824348.4U CN202121824348U CN215669987U CN 215669987 U CN215669987 U CN 215669987U CN 202121824348 U CN202121824348 U CN 202121824348U CN 215669987 U CN215669987 U CN 215669987U
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Abstract
The utility model provides a prefabricated ditch and a fixed type main roadway ditch spliced by the prefabricated ditches. The vertical section of the prefabricated ditch (1) is U-shaped; the rear end of the prefabricated ditch (1) is provided with an external interface (11), and the front end of the prefabricated ditch (1) is provided with an internal interface (13) matched with the external interface (11); a first supporting net piece (15) with the same shape as the prefabricated ditch is fixed inside the main body of the prefabricated ditch (1). Still provide the colliery underground fixed main laneway ditch of above-mentioned prefabricated ditch. The cover plate and the plurality of prefabricated ditches are arranged in the main roadway ditch, so that the device is high in deformation resistance, easy to clean and capable of meeting normal use under different roadway conditions.
Description
Technical Field
The utility model relates to the technical field of underground engineering construction of coal mines, in particular to a prefabricated ditch and a fixed underground main roadway ditch formed by splicing the prefabricated ditches.
Background
During the construction of a coal mine development main roadway, a ditch needs to be constructed on a coal mine bottom plate for later stage drainage.
The underground coal mine roadway bottom plate is easy to deform, in order to reduce the construction difficulty in the actual work, the ditch mostly adopts plain concrete, the poured plain concrete ditch is easy to damage when the roadway bottom plate deforms, and the ditch needs to be refitted after being damaged, so that the construction cost and the workload can be increased; in order to facilitate construction, the bottom of the existing ditch is generally a right angle, the ditch is used for discharging sewage, impurities in the sewage can be deposited in the right angle at the bottom of the ditch during discharging, the sewage is not easy to clean, and the sewage can be blocked after long-term use, so that the drainage efficiency is seriously influenced; in addition, the coal mine bottom plate has partial ponding, and current ditch sets up in the bottom plate, can only discharge sewage according to the direction in escape canal, and the water in the bottom plate around the ditch can't be discharged, and in the long term, will influence the intensity of bottom plate country rock, and then influence the stability of whole tunnel structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a prefabricated ditch which has strong deformation resistance and is easy to clean and a fixed roadway ditch under a coal mine formed by splicing the prefabricated ditches.
The utility model solves the technical problems through the following technical means:
a prefabricated ditch is characterized in that the vertical section of the prefabricated ditch (1) is U-shaped; the rear end of the prefabricated ditch (1) is provided with an external interface (11), and the front end of the prefabricated ditch (1) is provided with an internal interface (13) matched with the external interface (11); a first supporting net piece (15) with the same shape as the prefabricated ditch is fixed inside the main body of the prefabricated ditch (1).
Has the advantages that: the prefabricated ditch is arranged into a U shape, so that the bottom of the prefabricated ditch adopts a structural mode of 'round angle-flat bottom-round angle', and impurities deposited on the bottom of the ditch can be cleaned conveniently in the later period; the first supporting net piece is fixed in the main body of the prefabricated ditch, so that the deformation resistance of the prefabricated ditch is improved conveniently; through the matched inner and outer connector arrangement, the prefabricated ditch can be conveniently spliced and assembled into a large roadway ditch with a certain length.
Furthermore, the top ends of two side edges of the U-shaped prefabricated ditch (1) are integrally fixed with a limiting seat.
Has the advantages that: through the setting of spacing seat, be convenient for better play support and spacing effect to the apron.
Furthermore, a drain hole (17) is formed in one side wall of the prefabricated ditch (1).
Has the advantages that: through the setting of outlet, can make around the ditch in the water drainage to the ditch in the bottom plate, then discharge together with sewage and go to can ensure the stability of whole tunnel structure.
Furthermore, the shape of the inner joint (13) is U-shaped, and the shape of the outer joint (11) is the same as that of the vertical section of the prefabricated ditch (1).
Furthermore, an inner interface (13) is removed from the interior of the prefabricated ditch (1) through the outer interface (11), an outer interface (11) is removed from the exterior of the prefabricated ditch (1) through the inner interface (13), and the sum of the thickness of the outer interface (11) and the thickness of the inner interface (13) is the thickness of the prefabricated ditch (1).
Has the advantages that: through the setting of inside and outside interface shape and thickness, when can keeping two prefabricated ditches to link up, do not have the gap between to play the effect of discharging sewage that can be better.
Furthermore, first fixing holes (111) are formed in the middle positions of two U-shaped side walls and a bottom wall of the outer interface (11), and second fixing holes (131) are formed in the positions, corresponding to the first fixing holes (111), of the two U-shaped side walls and the bottom wall of the inner interface (13).
Has the advantages that: through the arrangement of the corresponding first fixing holes and the second fixing holes, the two prefabricated ditches can be conveniently jointed and fixed.
Further, the first support mesh sheet (15) comprises 1# round steel (151) and 2# round steel (153); the shape of the 1# round steel (151) is the same as that of the vertical section of the prefabricated ditch (1), and a plurality of 1# round steel (151) are arranged in parallel and level along the width direction of the prefabricated ditch (1); the rod body of 2# round steel (153) is fixed in the inboard of 1# round steel (151) perpendicularly, and just along the shape orbit direction parallel and level of 1# round steel (151) has laid a plurality of 2# round steel (153).
The application also discloses a fixed roadway ditch for the underground coal mine using the prefabricated ditch in any scheme, which comprises a cover plate (2) and a plurality of prefabricated ditches (1); the prefabricated ditches (1) are fixed in the roadway bottom plate in a mode that an inner interface (13) is connected with an outer interface (11); first fixing holes (111) are formed in the middle positions of two U-shaped side walls and a bottom wall of the outer interface (11), second fixing holes (131) are formed in the positions, corresponding to the first fixing holes (111), of the two U-shaped side walls and the bottom wall of the inner interface (13), and fixing pins (14) penetrate through the insides of the first fixing holes (111) and the second fixing holes (131); the cover plate (2) is arranged above the spliced prefabricated ditch (1).
Has the advantages that: when the prefabricated ditch is used, a groove with a certain length and the same shape as the vertical section of the prefabricated ditch is dug on a roadway bottom plate, then one prefabricated ditch is placed in the groove, an inner connector on the next prefabricated ditch is connected into an outer connector on the prefabricated ditch, two prefabricated ditches are fixed by penetrating through a first fixing hole and a second fixing hole through fixing pins, cement is adopted for plastering the joint, and by analogy, a plurality of prefabricated ditches are sequentially spliced into the arranged groove to form a large roadway ditch for later-stage drainage of the roadway; through fixing two prefabricated ditches with the fixed pin, when the tunnel atress warp, can prevent effectively that to take place the dislocation between the prefabricated ditch to can avoid the main laneway ditch to receive the destruction.
Furthermore, the front wall and the rear wall of the cover plate (2) are both provided with grooves (21).
Has the advantages that: through the setting of the front and rear wall grooves of the cover plate, the cover plate can be lifted conveniently in the later stage to clean sewage and impurities in the ditch.
Furthermore, a second supporting mesh (23) is fixed inside the body of the cover plate (2).
Has the advantages that: through the setting of second support net piece, can effectively guarantee the intensity of apron, prevent that its atress warp.
The utility model has the advantages that:
the utility model is provided with an external interface, an internal interface, a first supporting net piece and a U-shaped vertical section in a prefabricated ditch; the prefabricated ditch is arranged into a U shape, so that the bottom of the prefabricated ditch adopts a structural mode of 'round angle-flat bottom-round angle', and impurities deposited on the bottom of the ditch can be cleaned conveniently in the later period; the first supporting net piece is fixed in the main body of the prefabricated ditch, so that the deformation resistance of the prefabricated ditch is improved conveniently; through the matched inner and outer connector arrangement, the prefabricated ditch can be conveniently spliced and assembled into a large roadway ditch with a certain length.
The cover plate and the plurality of prefabricated ditches are arranged in the fixed main roadway ditch under the coal mine; when the prefabricated ditch is used, a groove with a certain length and the same shape as the vertical section of the prefabricated ditch is dug on a roadway bottom plate, then one prefabricated ditch is placed in the groove, an inner connector on the next prefabricated ditch is connected into an outer connector on the prefabricated ditch, two prefabricated ditches are fixed by penetrating through a first fixing hole and a second fixing hole through fixing pins, cement is adopted for plastering the joint, and by analogy, a plurality of prefabricated ditches are sequentially spliced into the arranged groove to form a large roadway ditch for later-stage drainage of the roadway; through fixing two prefabricated ditches with the fixed pin, when the tunnel atress warp, can prevent effectively that to take place the dislocation between the prefabricated ditch to can avoid the main laneway ditch to receive the destruction.
According to the utility model, through the arrangement of the drain holes, water in the bottom plate around the ditch can be discharged into the ditch and then discharged together with sewage, so that the stability of the whole roadway structure can be ensured.
According to the utility model, through the arrangement of the shapes and the thicknesses of the inner interface and the outer interface, no gap exists between the two prefabricated ditches when the two prefabricated ditches are connected, so that the sewage discharge function can be better realized.
According to the utility model, the grooves on the front wall and the rear wall of the cover plate are arranged, so that the cover plate can be lifted to clean sewage impurities in the ditch at the later stage.
According to the utility model, through the arrangement of the second supporting net piece, the strength of the cover plate can be effectively ensured, and the cover plate is prevented from deforming under stress.
Drawings
Fig. 1 is a front view of a fixed main roadway gutter in embodiment 1 of the present invention;
FIG. 2 is a front view of a prefabricated raceway in a fixed main roadway raceway of example 1 of the present invention;
FIG. 3 is a cross-sectional view of a fixed main roadway gutter in accordance with embodiment 1 of the present invention;
FIG. 4 is a left side view of a prefabricated raceway of a fixed main roadway raceway of example 1 of the present invention;
FIG. 5 is a top plan view of a prefabricated raceway in a fixed main roadway raceway of example 1 of the present invention;
fig. 6 is a front view of a first support web in a fixed roadway gutter according to example 1 of the present invention;
fig. 7 is a front view of an outer joint in a fixed main roadway gutter according to embodiment 1 of the present invention;
FIG. 8 is a front view of an inner joint in a fixed main roadway gutter according to embodiment 1 of the present invention;
fig. 9 is a splicing view of the inner and outer interfaces in the fixed main roadway ditch according to embodiment 1 of the present invention;
fig. 10 is a left side view of a prefabricated raceway of a fixed main roadway raceway of example 1 of the present invention in a spliced view;
fig. 11 is a top-down splice view of a prefabricated raceway in a fixed main roadway raceway of example 1 of the present invention;
fig. 12 is a top sectional view of a cover plate in the fixed main roadway gutter according to embodiment 1 of the present invention;
fig. 13 is a top view of a second support web in a fixed roadway gutter according to example 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 and 2, the embodiment provides a fixed roadway ditch under a coal mine, which comprises a cover plate 2 and a plurality of prefabricated ditches 1.
As shown in fig. 3, a plurality of prefabricated ditches 1 are spliced and fixed in a roadway bottom plate, a large roadway ditch is processed by adopting a ground mold to obtain the prefabricated ditches 1, and the obtained prefabricated ditches 1 are constructed in a manner of splicing and fixing underground, so that the labor required for underground material mixing and mold erecting is saved, the labor can be used for other operation links, the underground operation links are reduced, the construction efficiency is improved, and the human resource allocation is optimized; after splicing and fixing among the prefabricated ditches 1, arranging the cover plate 2 above the prefabricated ditches 1.
As shown in fig. 2, 4 and 5, the prefabricated ditch 1 has a cubic shape; as shown in fig. 2 and 5, the vertical section of the prefabricated ditch 1 is U-shaped, and the bottom of the prefabricated ditch 1 adopts a structural mode of round angle-flat bottom-round angle, so that impurities deposited at the bottom of the ditch can be cleaned conveniently at the later stage; and an L-shaped limiting seat is integrally fixed at the top end of the left side edge of the U shape, and an L-shaped limiting seat which is in mirror image with the left side is integrally fixed at the top end of the right side edge of the U shape and is used for supporting the cover plate 2.
As shown in fig. 2, a first supporting mesh 15 having the same shape as the prefabricated ditch is fixed inside the main body of the prefabricated ditch 1, so as to improve the deformation resistance of the prefabricated ditch 1; as shown in fig. 6, the first support mesh 15 comprises 1# round steel 151 and 2# round steel 153, the 1# round steel 151 is manufactured into a shape which is the same as the vertical cross section of the prefabricated ditch 1 through a process, the 2# round steel 153 is positioned on the inner side of the 1# round steel 151, and a rod body of the 2# round steel 153 is vertically fixed with the 1# round steel 151 through a welding mode; the No. 1 round steel 151 is HRB400 steel bar, the diameter is phi 6mm, the length is 1850mm, the number is 5, the distance between every two is 100mm, and the round steel is arranged in parallel; the No. 2 round steel 153 is HRB400 steel bars, the diameter is phi 6mm, the length is 450mm, the number is 21, the distance between every two adjacent round steel is 100mm, and the round steel is uniformly arranged on the inner side of the No. 1 round steel 151 at intervals; the distance between the 1# round steel 151 and the distance between the 2# round steel 153 can be properly adjusted according to actual conditions, but the distance is not larger than 100mm after adjustment.
As shown in fig. 5, the rear end of the prefabricated ditch 1 is provided with an external interface 11, and the front end of the prefabricated ditch 1 is provided with an internal interface 13 matched with the external interface 11; as shown in fig. 7, the shape of the external interface 11 is the same as the shape of the vertical section of the prefabricated ditch 1, and the middle positions of the two side walls and the bottom wall of the U shape on the external interface 11 are both provided with first fixing holes 111; as shown in fig. 8, the inner interface 13 is U-shaped, and as shown in fig. 9, 10 and 11, second fixing holes 131 are respectively formed on two side walls and a bottom wall of the U-shape at positions corresponding to the first fixing holes 111; as shown in fig. 1 and fig. 9, the first fixing hole 111 and the second fixing hole 131 are connected and fixed by a fixing pin 14, in this embodiment, the fixing pin 14 is an HRB400 steel bar, and has a diameter of 16mm and a length of 80 mm.
As shown in fig. 4 and 10, an inner interface 13 is removed from the interior of the prefabricated ditch 1 by the outer interface 11, an outer interface 11 is removed from the exterior of the prefabricated ditch 1 by the inner interface 13, and the thickness of the outer interface 11 and the thickness of the inner interface 13 are added to form the thickness of the prefabricated ditch 1; by means of the above arrangement, it is possible to fix the inner joint 13 of one prefabricated gutter 1 to the outer joint 11 of another prefabricated gutter 1, and thus to fix both prefabricated gutters 1.
The present embodiment is exemplified in that the width of the external interface 11 is 75 mm; the thickness of the limiting seat is 50mm, the width is 105mm, the height is 150mm, the two sides of the limiting seat are symmetrically formed into a cover plate limiting groove, and the depth of the limiting groove is 100 mm; the bottom of the external interface 11 is in a structure of round angle-flat bottom-round angle, the thickness is 25mm, the radius of the inner circle of the round angle at two sides is 175mm, the round angle is in tangent connection with the flat bottom, and the length of the flat bottom is 200 mm; the first fixing holes 111 on two sides of the external interface 11 are round holes with the diameter of 15mm, the circle center is 37.5mm away from the outer end of the external interface 11, and is 212.5mm away from the lower end of the limiting seat of the external interface 11; the first fixing hole 111 at the bottom of the external interface 11 is a round hole with the diameter of 15mm, the circle center is 37.5mm away from the outer end of the external interface 11, and the distance from the intersection of the round bottom and the round bottom is 100 mm.
This embodiment is illustrated with an inner interface 13 of 75mm width; the radiuses of the inner circles of the round corners at the two sides of the inner interface 13 are both 150mm, and the rest sizes are the same as those of the outer interface 11; the lateral second fixing hole 131 of the inner interface 13 is a circular hole with the diameter of 15mm, the circle center is 37.5mm away from the outer end of the inner interface 13, and is 270mm away from the upper end of the inner interface 13; the second fixing hole 131 at the bottom of the inner interface 13 is a circular hole with a diameter of 15mm, the center of the circle is 37.5mm away from the outer end of the inner interface 13, and is 100mm away from the intersection of the round bottom and the flat bottom.
The present embodiment exemplifies that the width of the body of the prefabricated gutter 1 is 500 mm; the limiting seat is the same as the limiting seat; the thickness of the prefabricated ditch 1 is 50mm, the radiuses of the inner circles of the round corners at two sides are 150mm, and the rest are the same as the above.
As shown in fig. 10 and 11, a side wall of the prefabricated ditch 1 is provided with a drainage hole 17, and in this embodiment, the drainage hole 17 is provided at the middle position of the left side wall of the prefabricated ditch 1, so that water in the bottom plate around the ditch can be drained into the ditch and then drained together with sewage.
In the example of this embodiment, the diameter of the drain hole 17 is 50mm, the center of the circle is 45mm away from the lower end of the limiting seat, and the distance is 250mm from the interface between the external interface 11 and the prefabricated ditch 1.
As shown in fig. 12, the front and rear walls of the cover plate 2 are provided with grooves 21, so that the cover plate 2 can be lifted up to clean sewage and impurities in the ditch; as shown in fig. 1, a second supporting mesh 23 is fixed at the center of the inner part of the body of the cover plate 2; as shown in fig. 13, the second supporting mesh 23 is a square mesh reinforcing mesh, and the second supporting mesh 23 is formed by welding 3# round steel 231 and 4# round steel 233; 3# round steel 231 and 4# round steel 233 are HRB400 reinforcing bar, and the diameter is phi 6mm, and 3# round steel 231 length is 500mm, and the quantity is 7, and 4# round steel 233 length is 600mm, and the quantity is 6, and both perpendicular interval welded fastening constitutes second support mesh piece 23.
The prefabricated ditch 1 is made of C20 concrete, and the cover plate 2 is made of C30 concrete.
When the prefabricated ditch is used, a groove with a certain length and the same vertical cross section shape as that of the prefabricated ditch 1 is dug on a roadway bottom plate, then one prefabricated ditch 1 is placed in the groove, an inner connector 13 on the next prefabricated ditch 1 is connected into an outer connector 11 on the prefabricated ditch 1, two prefabricated ditches 1 are fixed by penetrating through a first fixing hole 111 and a second fixing hole 131 through a fixing pin 14, cement is adopted for plastering at the joint, and by analogy, the prefabricated ditches 1 are sequentially spliced into the arranged groove to form a large roadway ditch for later-stage drainage of the roadway; after the large roadway ditch is spliced, the cover plate 2 is manually placed in the limiting seat of the prefabricated ditch 1, so that sewage can be prevented from splashing, and people in the roadway can conveniently walk.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The prefabricated ditch is characterized in that the vertical section of the prefabricated ditch (1) is U-shaped;
the rear end of the prefabricated ditch (1) is provided with an external interface (11), and the front end of the prefabricated ditch (1) is provided with an internal interface (13) matched with the external interface (11);
a first supporting net piece (15) with the same shape as the prefabricated ditch is fixed inside the main body of the prefabricated ditch (1).
2. A prefabricated water ditch according to claim 1, wherein: the prefabricated ditch (1) is integrally fixed with limiting seats at the top ends of two side edges of the U shape.
3. A prefabricated raceway as claimed in claim 1 or 2, wherein: one side wall of the prefabricated ditch (1) is provided with a water drainage hole (17).
4. A prefabricated raceway as claimed in claim 1 or 2, wherein: the shape of the inner interface (13) is U-shaped; the shape of the external interface (11) is the same as the shape of the vertical section of the prefabricated ditch (1).
5. The prefabricated water ditch of claim 4, wherein: the outer interface (11) is formed by removing an inner interface (13) from the interior of the prefabricated ditch (1), the inner interface (13) is formed by removing an outer interface (11) from the exterior of the prefabricated ditch (1), and the thickness of the outer interface (11) and the thickness of the inner interface (13) are added to form the thickness of the prefabricated ditch (1).
6. The prefabricated water ditch of claim 5, wherein: first fixed orifices (111) have all been seted up to the intermediate position of the both sides wall of U-shaped and diapire on external joint (11), second fixed orifices (131) have all been seted up with first fixed orifices (111) position on the both sides wall of U-shaped and the diapire on internal joint (13).
7. A prefabricated raceway as claimed in claim 1 or 2, wherein: the first support mesh (15) comprises # 1 round steel (151) and # 2 round steel (153); the shape of the 1# round steel (151) is the same as that of the vertical section of the prefabricated ditch (1), and a plurality of 1# round steel (151) are arranged in parallel and level along the width direction of the prefabricated ditch (1); the rod body of 2# round steel (153) is fixed in the inboard of 1# round steel (151) perpendicularly, and just along the shape orbit direction parallel and level of 1# round steel (151) has laid a plurality of 2# round steel (153).
8. The underground coal mine fixed main roadway ditch of prefabricated ditches as claimed in any one of claims 1 to 7, wherein: comprises a cover plate (2) and a plurality of prefabricated ditches (1); the prefabricated ditches (1) are fixed in the roadway bottom plate in a mode that an inner interface (13) is connected with an outer interface (11); first fixing holes (111) are formed in the middle positions of two U-shaped side walls and a bottom wall of the outer interface (11), second fixing holes (131) are formed in the positions, corresponding to the first fixing holes (111), of the two U-shaped side walls and the bottom wall of the inner interface (13), and fixing pins (14) penetrate through the insides of the first fixing holes (111) and the second fixing holes (131); the cover plate (2) is arranged above the spliced prefabricated ditch (1).
9. The underground fixed main roadway ditch of the coal mine according to claim 8, wherein: the front wall and the rear wall of the cover plate (2) are provided with grooves (21).
10. The underground fixed main roadway ditch of the coal mine according to claim 8, wherein: and a second supporting net piece (23) is fixed in the body of the cover plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121824348.4U CN215669987U (en) | 2021-08-05 | 2021-08-05 | Prefabricated ditch and fixed big lane ditch spliced by prefabricated ditch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121824348.4U CN215669987U (en) | 2021-08-05 | 2021-08-05 | Prefabricated ditch and fixed big lane ditch spliced by prefabricated ditch |
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| CN215669987U true CN215669987U (en) | 2022-01-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960897A (en) * | 2022-03-25 | 2022-08-30 | 中国一冶集团有限公司 | Anti-leakage ditch splicing seam structure, drainage ditch applying same and maintenance method thereof |
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2021
- 2021-08-05 CN CN202121824348.4U patent/CN215669987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960897A (en) * | 2022-03-25 | 2022-08-30 | 中国一冶集团有限公司 | Anti-leakage ditch splicing seam structure, drainage ditch applying same and maintenance method thereof |
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