CN212867640U - Mine tunnel rapid sealing structure - Google Patents
Mine tunnel rapid sealing structure Download PDFInfo
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- CN212867640U CN212867640U CN202021854950.8U CN202021854950U CN212867640U CN 212867640 U CN212867640 U CN 212867640U CN 202021854950 U CN202021854950 U CN 202021854950U CN 212867640 U CN212867640 U CN 212867640U
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Abstract
The utility model relates to the technical field of mine tunnel plugging, in particular to a mine tunnel rapid closing structure; the filling material comprises an inner side closed wall and an outer side closed wall which are fixed on the section of a roadway, wherein inorganic salt high-water materials are poured into a space between the inner side closed wall and the outer side closed wall to form a filling body; the inner side closed wall or the outer side closed wall comprises a steel structure, the steel structure is a grid-shaped frame structure, two side frames positioned at the upper end and the lower end are assembled by end cross beams, a middle transverse frame is assembled by cross beams, and vertical frames positioned at the left end, the right end and the middle are assembled by upright posts and channel steel of the end cross beams and the cross beams respectively; fixing a reinforcing mesh outside the steel structure, spraying a layer of concrete with the thickness ratio of less than 100mm to the reinforcing mesh by using a concrete sprayer, and constructing an inner side closed wall or an outer side closed wall together with the steel structure; the utility model discloses simple structure, construction speed is fast, and workman low in labor strength can realize that the tunnel seals fast.
Description
Technical Field
The utility model relates to a mine tunnel shutoff technical field, concretely relates to quick enclosed construction in mine tunnel.
Background
After the stoping of the fully mechanized coal mining face of the coal mine is finished, stoping roadways on two sides of the working face need to be closed in time in order to avoid safety hazards caused by spontaneous combustion of scattered coal due to air entering a goaf or harmful gas in the goaf entering an adjacent stoping space. According to the estimation, each mine needs about 5-10 closed roadways per month, and even as many as 50 closed roadways per month. According to the traditional closed roadway construction process, two stone walls or brick walls are constructed on two sides of a closed section of the roadway, and loess is tamped between the two closed walls. The method has the advantages of multiple working procedures, low efficiency, large engineering quantity and high labor intensity of workers, and is not suitable for the requirements of modern high-yield and high-efficiency mines.
Disclosure of Invention
The utility model discloses a solve the technical problem that current tunnel sealing method process is many, inefficiency, engineering volume is big, workman intensity of labour is high, provide a quick enclosed construction in mine tunnel.
For solving the technical problem, the utility model discloses the technical scheme who adopts does: a mine tunnel rapid closing structure is characterized in that: the filling material comprises an inner side closed wall and an outer side closed wall which are fixed on the section of a roadway, wherein inorganic salt high-water materials are poured into a space between the inner side closed wall and the outer side closed wall to form a filling body; the inner side closed wall or the outer side closed wall comprises a steel structure, the steel structure is a grid-shaped frame structure, two side frames positioned at the upper end and the lower end are assembled by end cross beams, a middle transverse frame is assembled by cross beams, and vertical frames positioned at the left end, the right end and the middle are assembled by upright posts and channel steel of the end cross beams and the cross beams respectively; fixing a reinforcing mesh outside the steel structure, spraying a layer of concrete with the thickness not less than 100mm to the reinforcing mesh by using a concrete sprayer, and constructing an inner side closed wall or an outer side closed wall together with the steel structure; the upright column comprises an I-shaped steel standard part with the length of L, and the positions, close to the X mm, of the two ends of the central axis of the web plate of the I-shaped steel standard part are respectively provided with a hole; the beam comprises an I-shaped steel standard part with the length of L, two ends of the I-shaped steel standard part are respectively welded with a channel steel I with the length of A and mutually perpendicular to the I-shaped steel standard part, wing plates of the two channel steels I are oppositely arranged, and two drill holes I are respectively formed in positions, away from a near end portion Ymm, of two ends of the axis of a waist plate of the channel steel I; the end cross beam comprises an I-shaped steel standard part with the length of L, two ends of the I-shaped steel standard part are respectively welded with a channel steel II with the length of C and mutually perpendicular to the I-shaped steel standard part, wing plates of the two channel steels II are oppositely arranged, and the bottom ends of the two channel steels II are flush with the bottom end of the I-shaped steel standard part; and a drilling hole II is further formed in the position, away from the end Zmm, of one end of the axis of the II waist plate of the channel steel.
During manufacturing and use, a section where a sealing wall is constructed needs to be determined in a roadway with the height H and the width B, a top plate cutting groove with the width D and the depth E is constructed on a top plate of the section, a bottom plate cutting groove with the width D and the depth F is constructed on a bottom plate, side part cutting grooves with the width D and the depth G are constructed on two sides respectively, and the bottom of the groove is processed to be flat; assembling the upright posts, the end cross beams and the cross beams by using bolts to form a steel structure, and injecting concrete into the grooves of the top plate, the bottom plate and the two sides to ensure that the steel structure is in a stable state; fixing a reinforcing mesh outside the built steel structure, spraying a layer of concrete with the thickness ratio of less than 100mm to the reinforcing mesh by using a concrete sprayer, and building an inner side closed wall together with the steel structure; and (4) installing the side sealed wall at a position which is not less than m away from the inner sealed wall by the same method. A grouting steel pipe and an exhaust steel pipe are installed at the top end of the outer airtight wall, the steel pipes penetrate through the outer airtight wall, one end of each steel pipe is located between the inner airtight wall and the outer airtight wall, the other end of each steel pipe is exposed out of the outer airtight wall, and the steel pipes and the airtight wall are tightly sealed; and (3) pouring inorganic salt high-water materials into the space between the inner side closed wall and the outer side closed wall through the grouting steel pipe, closing the exhaust pipe firstly when slurry overflows from the exhaust pipe, increasing grouting pressure to continue grouting, closing the grouting pipe when the grouting pressure reaches 0.2MPa, and stopping grouting to form a filling body.
Compared with the prior art the utility model discloses following beneficial effect has:
the method comprises the steps of processing waste I-shaped steel and channel steel into stand columns, cross beams and end cross beam standard parts, assembling randomly in a required closed tunnel according to section parameters to form a main bearing steel structure of the closed wall, fixing a reinforcing mesh outside the main bearing steel structure, spraying concrete with a certain thickness by using a shotcrete machine, forming the closed wall together with the steel structure, and pouring inorganic salt high-water materials into the middle area of two closed walls to form a filling body so as to realize permanent closure of the tunnel.
The utility model discloses simple structure, construction speed is fast, and workman low in labor strength can realize that the tunnel seals fast.
Drawings
Fig. 1 is a schematic structural view of a standard component.
Fig. 2 is a schematic structural view of the pillar.
Fig. 3 is a schematic view of a beam structure.
Fig. 4 is a schematic view of an end beam structure.
Fig. 5 is a partial schematic view of a steel structure.
Fig. 6 is a schematic view of a steel structure.
Fig. 7 is a schematic view of a containment wall.
Fig. 8 is a front view of a roadway closed structure.
Fig. 9 is a plan view of a tunnel sealing structure.
Fig. 10 is a side view of a roadway closure structure.
The figures are labeled as follows:
1-standard part, 2-hole, 3-column, 4-channel steel I, 5-drilling I, 6-beam, 7-channel steel II, 8-drilling II, 9-beam, 10-top plate slot, 11-bottom plate slot, 12-upper slot, 13-steel structure, 14-reinforcing mesh, 15-inner side sealing wall, 17-grouting steel pipe, 18-exhaust steel pipe and 19-filling body.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Examples
A mine roadway rapid closing structure is shown in figures 8-10 and comprises an inner side closed wall 15 and an outer side closed wall 16 which are fixed on a roadway section, wherein a space between the inner side closed wall 15 and the outer side closed wall 16 is filled with inorganic salt high-water materials to form a filling body 19; the inner side airtight wall 15 or the outer side airtight wall 16 both comprise a steel structure 13, as shown in fig. 6, the steel structure 13 is a grid-shaped frame structure, two side frames positioned at the upper end and the lower end are assembled by end cross beams 9, a middle transverse frame is assembled by cross beams 6, and vertical frames positioned at the left end, the right end and the middle are assembled by upright posts 3 and channel steel of the end cross beams and the cross beams respectively; fixing a reinforcing mesh 14 outside the steel structure 13, spraying a layer of concrete with the thickness not less than 100mm to the reinforcing mesh 14 by using a concrete sprayer, and constructing an inner airtight wall 15 or an outer airtight wall 16 together with the steel structure 13, as shown in fig. 7; the upright post 3 comprises an I-shaped steel standard part 1 with the length of L as shown in figure 2, and a hole 2 is respectively formed in the positions, close to the X mm ends, of two ends of the central axis of a web plate of the I-shaped steel standard part 1; the cross beam 6 comprises an I-shaped steel standard part 1 with the length of L, two ends of the I-shaped steel standard part 1 are respectively welded with a channel steel I4 with the length of A and mutually perpendicular to the I-shaped steel standard part 1, wing plates of the two channel steels I4 are oppositely arranged, and two positions, far away from a near end portion Ymm, of two ends of a waist plate axis of the channel steel I4 are respectively provided with a drilling hole I5; the end cross beam 9 comprises an I-shaped steel standard part 1 with the length of L, two channel steels II 7 which are C in length and perpendicular to the I-shaped steel standard part 1 are welded at two ends of the I-shaped steel standard part 1 respectively, wing plates of the two channel steels II 7 are arranged oppositely, and the bottom ends of the two channel steels II 7 are flush with the bottom end of the I-shaped steel standard part 1; and a drilling hole II 8 is further formed in one end of the axis of the II 7 waist plate of the channel steel and is far away from the end Zmm.
The upright column 3 is connected with the cross beam 6 or the end cross beam 9 through bolts, the end of the upright column 3 is connected with the end of the channel steel I4 through screwing bolts into the holes, and the end of the upright column 3 is connected with the end of the channel steel II 7 through screwing bolts.
Furthermore, a grouting steel pipe 17 and an exhaust steel pipe 18 are installed at the top end of the outer airtight wall 16, the steel pipes penetrate through the outer airtight wall 16, one end of each steel pipe is located between the inner airtight wall 15 and the outer airtight wall 16, and the other end of each steel pipe is exposed out of the outer airtight wall 16.
Furthermore, 3 length L =1m of the upright column, and the length of channel steel I4 welded at two ends of the beam
。
Furthermore, the distance from the circle center of the drilling hole I5 to the near end part of the channel steel I4 welded at the two ends of the beam 6
(ii) a The distance from the circle center of a drilling hole II 8 on a channel steel II 7 welded at two ends of the end cross beam 9 to the near end part
。
Furthermore, the distance between the centers of two drilling holes I5 on the channel steel I4 welded at the two ends of the beam 6 is equal to 2 times of the distance X from the center of the hole 2 on the upright post 3 to the end part.
Furthermore, valves are arranged at the exposed ends of the grouting steel pipe 17 and the exhaust steel pipe 18.
Further, the distance ratio between the grouting steel pipe 17 and the exhaust steel pipe 18 is less than half of the roadway width B.
Claims (5)
1. A mine tunnel rapid closing structure is characterized in that: the tunnel wall structure comprises an inner side closed wall (15) and an outer side closed wall (16) which are fixed on the section of a tunnel, wherein a space between the inner side closed wall (15) and the outer side closed wall (16) is filled with inorganic salt high-water materials to form a filling body (19); the inner side airtight wall (15) or the outer side airtight wall (16) comprises a steel structure (13), the steel structure (13) is of a grid-shaped frame structure, two frames located at the upper end and the lower end are assembled by end cross beams (9), a middle transverse frame is assembled by cross beams (6), and vertical frames located at the left end, the right end and the middle part are assembled by vertical framesThe column (3) is assembled with the end cross beam and the channel steel of the cross beam respectively; fixing a reinforcing mesh (14) on the outer side of the steel structure (13), spraying a layer of concrete with the thickness not less than 100mm to the reinforcing mesh (14) by using a concrete sprayer, and constructing an inner airtight wall (15) or an outer airtight wall (16) together with the steel structure (13); the upright post (3) comprises an I-shaped steel standard part (1) with the length of L, and the positions, close to the end part X mm, of two ends of the central axis of a web plate of the I-shaped steel standard part (1) are respectively provided with a hole (2); the beam (6) comprises an I-steel standard part (1) with the length of L, two ends of the I-steel standard part (1) are respectively welded with a channel steel I (4) with the length of A and mutually perpendicular to the I-steel standard part (1), wing plates of the two channel steels I (4) are arranged oppositely, and two drill holes I (5) are respectively formed in positions, away from a near end portion Ymm, of two ends of the waist plate axis of the channel steel I (4); the end cross beam (9) comprises an I-shaped steel standard part (1) with the length of L, two ends of the I-shaped steel standard part (1) are respectively welded with a channel steel II (7) which is C in length and perpendicular to the I-shaped steel standard part (1), wing plates of the two channel steels II (7) are arranged oppositely, and the bottom ends of the two channel steels II (7) are flush with the bottom end of the I-shaped steel standard part (1); a drilling hole II (8) is formed in the position, which is Z mm away from the end part, of one end of the waist plate axis of the channel steel II (7); the distance from the circle center of the drilling hole I (5) to the near end part on the channel steel I (4) welded at the two ends of the beam (6)
(ii) a The distance from the circle center of a drilling hole II (8) on the channel steel II (7) welded at the two ends of the end cross beam (9) to the near end part
(ii) a The distance between the circle centers of two drilling holes I (5) on the channel steel I (4) welded at the two ends of the cross beam (6) is equal to 2 times of the distance X from the circle center of the upper hole (2) of the upright post (3) to the end part.
2. The mine roadway rapid closing structure according to claim 1, characterized in that: and a grouting steel pipe (17) and an exhaust steel pipe (18) are arranged at the top end of the outer airtight wall (16), the steel pipes penetrate through the outer airtight wall (16), one end of each steel pipe is positioned between the inner airtight wall (15) and the outer airtight wall (16), and the other end of each steel pipe is exposed out of the outer airtight wall (16).
3. The mine roadway rapid closure structure as claimed in claim 1, wherein the upright (3) is long
The length of channel steel I (4) welded at two ends of the beam
。
4. The mine roadway rapid closing structure according to claim 2, wherein valves are arranged at the exposed ends of the grouting steel pipe (17) and the exhaust steel pipe (18).
5. The mine roadway rapid closing structure according to claim 2, wherein the spacing ratio of the grouting steel pipe (17) and the exhaust steel pipe (18) is less than half of the roadway width B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021854950.8U CN212867640U (en) | 2020-08-31 | 2020-08-31 | Mine tunnel rapid sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021854950.8U CN212867640U (en) | 2020-08-31 | 2020-08-31 | Mine tunnel rapid sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212867640U true CN212867640U (en) | 2021-04-02 |
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ID=75193408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021854950.8U Active CN212867640U (en) | 2020-08-31 | 2020-08-31 | Mine tunnel rapid sealing structure |
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|---|---|
| CN (1) | CN212867640U (en) |
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2020
- 2020-08-31 CN CN202021854950.8U patent/CN212867640U/en active Active
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