CN219316966U - Steel pipe sheet for TBM construction support cyclic utilization of coal mine tunnel - Google Patents
Steel pipe sheet for TBM construction support cyclic utilization of coal mine tunnel Download PDFInfo
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- CN219316966U CN219316966U CN202320305950.XU CN202320305950U CN219316966U CN 219316966 U CN219316966 U CN 219316966U CN 202320305950 U CN202320305950 U CN 202320305950U CN 219316966 U CN219316966 U CN 219316966U
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Abstract
The utility model relates to a steel pipe sheet for the TBM construction support and recycling of a coal mine tunnel, which is a circular structure body formed by detachably splicing three standard blocks with radian of 67.5 degrees, two adjacent blocks with radian of 71.25 degrees and a wedge block in the circumferential direction; the middle parts of the standard block, the adjacent block and the wedge block are respectively embedded with a hanging seat; grouting joints are respectively and circumferentially symmetrically embedded at two sides of the hanging seat of the standard block and the adjacent block, and the grouting joints of the standard block and the adjacent block are positioned on the same arc-shaped central line with the hanging seat; the standard block, the adjacent block and the wedge block are respectively formed by correspondingly welding two arc plates, two side plates and two end plates which are matched with the standard block, the adjacent block and the wedge block, and a plurality of rib plates which are matched with the standard block, the adjacent block and the wedge block are welded between the inner surfaces of the two arc plates at equal intervals. The steel pipe sheet can be recycled, and the manufacturing cost of the steel pipe sheet is reduced under the condition of meeting the temporary construction support condition.
Description
Technical Field
The utility model belongs to the technical field of TBM construction supporting equipment, and particularly relates to a steel pipe sheet for cyclic utilization of TBM construction supporting of a coal mine roadway.
Background
In the prior art, in the TBM construction method of the coal mine tunnel, the transported thick cement pipe pieces are assembled into a permanent supporting structure for one time by a pipe piece assembling machine while tunneling, the cement pipe pieces in the construction method cannot be recycled, the manufacturing cost is high, and the construction method cannot flexibly strain under normal geological construction conditions without cement pipe piece supporting; therefore, there is a need to design a steel pipe sheet that can be recycled under the condition of meeting the temporary construction support condition.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a steel pipe sheet for the TBM construction support recycling of a coal mine tunnel, which comprises the following specific technical scheme:
the utility model provides a steel pipe sheet for the TBM construction support and recycling of a coal mine tunnel, which is a circular structure body formed by detachably splicing three standard blocks with radian of 67.5 degrees, two adjacent blocks with radian of 71.25 degrees and a wedge block in the circumferential direction;
the middle parts of the standard block, the adjacent block and the wedge block are respectively embedded with a hanging seat; grouting joints are respectively and circumferentially symmetrically embedded at two sides of the hanging seat of the standard block and the adjacent block, and the grouting joints of the standard block and the adjacent block are positioned on the same arc-shaped central line with the hanging seat;
the standard block, the adjacent block and the wedge block are respectively formed by correspondingly welding two arc plates, two side plates and two end plates which are matched with the standard block, the adjacent block and the wedge block, and a plurality of rib plates which are matched with the standard block, the adjacent block and the wedge block are welded between the inner surfaces of the two arc plates at equal intervals.
As a preferable technical scheme of the utility model, three bolt fixing pipes are symmetrically embedded at equal intervals in the circumferential direction on two sides of the arc-shaped central line of the standard block and the adjacent block respectively; the end parts of the standard blocks are respectively and axially symmetrically embedded with bolt fixing inclined pipes along the arc central lines of the standard blocks; the end part of the adjacent block facing the wedge block is axially and symmetrically embedded with a support with a groove-shaped structure along the arc-shaped central line of the support, and the other end part of the adjacent block is axially and symmetrically embedded with a bolt fixing inclined tube along the arc-shaped central line of the support; the end parts of the wedge blocks are respectively and axially symmetrically embedded with bolt fixing pipes along the arc central lines of the wedge blocks; the two axially opposite bolt fixing pipes and the two circumferentially opposite bolt fixing inclined pipes are connected through V-shaped bolts matched with the two axially opposite bolt fixing pipes; the two circumferentially opposite supports are connected through a pressing plate buckle.
As a preferable technical scheme of the utility model, the pressing plate comprises an arc surface part in contact fit with the wedge block, two ends of the arc surface part are respectively and integrally and vertically connected with a clamping hook part, the clamping hook part is in clamping fit with the corresponding support, and the arc surface part is respectively connected with the corresponding wedge block and the adjacent block through a fastening bolt.
As a preferable technical scheme of the utility model, the bolt fixing pipe and the bolt fixing inclined pipe have the same structure; the bolt fixing tube comprises a fixing groove with a dustpan-shaped structure, and an arc tube is welded on the end surface of the fixing groove in a communicating manner; the two arc-shaped pipes are connected through the V-shaped bolts in plug-in fit.
As a preferable technical scheme of the utility model, the arc edges of the standard block and the adjacent block at the same side are respectively and axially provided with two oil cylinder seats relatively, the two oil cylinder seats are respectively and symmetrically arranged along the circumferential direction of the corresponding hanging seat, and the oil cylinder seats are of groove-shaped structures with one open end.
As a preferable technical scheme of the utility model, the circumferential splicing seams among the standard block, the adjacent block and the wedge block are embedded with sealing rings matched with the standard block, the adjacent block and the wedge block; the sealing ring matched with the two steel pipe sheets is embedded in the axial butt joint between the two steel pipe sheets.
As a preferable technical scheme of the utility model, the joint-staggering splicing angle of two adjacent steel pipe sheets is 22.5 degrees.
The beneficial effects of the utility model are as follows:
the steel pipe sheet is a circular structure body formed by splicing three standard blocks, two adjacent blocks and one wedge block in a circumferential detachable manner, and the steel pipe sheet used in the method can be recycled; the standard block, the adjacent block and the hanging seat arranged on the wedge block can facilitate the hanging connection of equipment in assembly construction; two grouting joints are arranged on the standard block and the adjacent block, so that grouting filling is conveniently carried out on gaps between the steel pipe sheets and the coal mine tunnel; the standard block, the adjacent block and the wedge block are welded correspondingly by adopting an external arc plate, a side plate, an end plate and an internal rib plate to form a frame-shaped structural body, so that the manufacturing cost of the steel pipe sheet is reduced under the condition of meeting the temporary construction support condition.
Drawings
Fig. 1 shows a schematic perspective view of a three-group steel pipe sheet staggered joint splice of the present utility model;
FIG. 2 shows a schematic end-face configuration of FIG. 1;
FIG. 3 shows a cross-sectional view of the structure of FIG. 2 taken along line A-A;
FIG. 4 shows a cross-sectional view of the structure of FIG. 2 taken along line B-B;
FIG. 5 shows a cross-sectional view of the structure of FIG. 4 taken along line C-C;
FIG. 6 shows an enlarged view of the structure of the portion I in FIG. 2;
fig. 7 shows an enlarged view of the structure of the II portion in fig. 3.
The figure shows: 1. a standard block; 2. adjacent blocks; 3. wedge blocks; 4. a seal ring; 5. an oil cylinder seat; 6a, fixing the pipe by bolts; 61. a fixing groove; 62. an arc tube; 6b, fixing the inclined tube by bolts; 7. a hanging seat; 8. grouting joints; 9. a support; 10. a pressing plate; 101. an arc surface portion; 102. a hook part; 103. a fastening bolt; 11. v-shaped bolts.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model 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 utility model.
As shown in fig. 1-4, a steel pipe sheet for TBM construction support recycling of a coal mine tunnel is a circular structure body formed by splicing three standard blocks 1 with radian of 67.5 degrees, two adjacent blocks 2 with radian of 71.25 degrees and a wedge block 3 in a circumferential detachable manner;
the hanging seats 7 are embedded in the middle parts of the standard block 1, the adjacent block 2 and the wedge block 3; grouting joints 8 are respectively and circumferentially symmetrically embedded at two sides of the hanging seat 7 of the standard block 1 and the adjacent block 2, and the grouting joints 8 of the standard block 1 and the adjacent block 2 are positioned on the same arc-shaped central line with the hanging seat 7;
the standard block 1, the adjacent block 2 and the wedge block 3 are respectively formed by correspondingly welding two arc plates, two side plates and two end plates which are matched with the standard block, and a plurality of rib plates which are matched with the standard block, the adjacent block and the wedge block are welded between the inner surfaces of the two arc plates at equal intervals.
By adopting the technical scheme, the steel pipe sheet is a circular structure body formed by splicing three standard blocks 1, two adjacent blocks 2 and one wedge block 3 in a circumferential detachable manner, and the used steel pipe sheet can be recycled; the hanging seat 7 arranged on the standard block 1, the adjacent block 2 and the wedge block 3 can facilitate the hanging connection of equipment in assembly construction; two grouting joints 8 are arranged on the standard block 1 and the adjacent block 2, so that grouting filling is conveniently carried out on gaps between the steel pipe sheets and the coal mine tunnel; the standard block 1, the adjacent block 2 and the wedge block 3 are welded correspondingly by adopting an external arc plate, a side plate, an end plate and an internal rib plate to form a frame-shaped structure, so that the manufacturing cost of the steel pipe sheet is reduced under the condition of meeting the temporary construction support condition.
As shown in fig. 3 to 5, three bolt fixing pipes 6a are symmetrically embedded at equal intervals in the circumferential direction at two sides of the arc-shaped central line of the standard block 1 and the adjacent block 2 respectively; the end parts of the standard blocks 1 are respectively and axially symmetrically embedded with bolt fixing inclined pipes 6b along the arc central lines of the standard blocks; the end part of the adjacent block 2 facing the wedge block 3 is axially and symmetrically embedded with a support 9 with a groove-shaped structure along the arc-shaped central line of the support, and the other end part of the adjacent block 2 is axially and symmetrically embedded with a bolt fixing inclined tube 6b along the arc-shaped central line of the support; the end parts of the wedge blocks 3 are respectively and axially symmetrically embedded with bolt fixing pipes 6a along the arc central lines of the wedge blocks; the two axially opposite bolt fixing pipes 6a and the two circumferentially opposite bolt fixing inclined pipes 6b are connected through V-shaped bolts 11 matched with the two axially opposite bolt fixing pipes; the two circumferentially opposite supports 9 are in snap connection by means of a pressure plate 10.
By adopting the technical scheme, the arranged bolt fixing pipe 6a is matched with the V-shaped bolt 11, so that the axial connection between adjacent steel pipe sheets can be met; the set bolt fixing inclined tube 6b is matched with the V-shaped bolt 11, so that the circumferential connection between the standard block 1 and the adjacent block 2 in the same steel pipe sheet can be met; the support 9 is matched with the pressing plate 10, so that the circumferential connection between the wedge block 3 and the adjacent blocks 2 on the two sides in the same steel pipe sheet can be met.
As shown in fig. 5, the pressing plate 10 includes an arc surface portion 101 in contact with and matched with the wedge 3, two ends of the arc surface portion 101 are respectively integrally and vertically connected with a hook portion 102, the hook portion 102 is in contact with and matched with the corresponding support 9, and the arc surface portion 101 is respectively connected with the corresponding wedge 3 and the adjacent block 2 through fastening bolts 103.
Through adopting above-mentioned technical scheme, cambered surface portion 101 of clamp plate 10 can carry out the wainscot to wedge 3 and support, and its pothook portion 102 can be fine with support 9 joint cooperation to through fastening bolt 103 with corresponding wedge 3 and adjacent piece 2 are connected, can link together wedge 3 and adjacent piece 2 well like this, in order to solve because of wedge 3 width is not enough, can not add the problem of embedding bolt fixed inclined tube 6 b.
As shown in fig. 7, the bolt-fixing tube 6a has the same structure as the bolt-fixing inclined tube 6b; the bolt fixing tube 6a comprises a fixing groove 61 with a dustpan-shaped structure, and an arc tube 62 is welded on the end surface of the fixing groove 61 in a communicating manner; the two arc-shaped pipes 62 are connected through the V-shaped bolts 11 which are in plug-in fit.
By adopting the technical scheme, the inclined opening surface of the fixed groove 61 with the dustpan-shaped structure is flush with the inner cambered surface of the corresponding standard block 1 or the adjacent block 2 or the wedge block 3, and the end surface and the side surface of the fixed groove 61 are mutually perpendicular to the bottom surface of the fixed groove; the arc tube 62 is provided to be fitted with the fixing groove 61, so that a relatively stable connection effect can be achieved.
As shown in fig. 1 to 4, the arc edges of the standard block 1 and the adjacent block 2 at the same side are respectively and axially provided with two oil cylinder seats 5 in opposite directions, the two oil cylinder seats 5 are respectively and symmetrically arranged along the circumferential directions of the corresponding hanging seats 7, and the oil cylinder seats 5 are of groove-shaped structures with one open end.
Through adopting above-mentioned technical scheme, the hydro-cylinder seat 5 of recess shape structure that sets up can be when the axial butt joint between two sets of steel-pipe pieces, the axial jacking operation of hydro-cylinder of being convenient for.
As shown in fig. 6, the circumferential splice joints among the standard block 1, the adjacent block 2 and the wedge block 3 are embedded with sealing rings 4 matched with the circumferential splice joints; the sealing ring 4 matched with the two steel pipe sheets is also embedded in the axial butt joint between the two steel pipe sheets.
Through adopting above-mentioned technical scheme, the sealing washer 4 that sets up can play sealed waterproof effect effectively to circumference splice seam or axial splice seam.
As shown in fig. 1 and 2, the joint angle of the two adjacent steel pipe sheets is 22.5 °.
By adopting the technical scheme, the staggered joint splicing mode is adopted, so that the structural strength can be increased, and the axial labyrinth water blocking effect can be formed.
When the method is implemented, firstly, a TBM tunneling machine assembly manipulator lifts a standard block 1 positioned at the arch bottom, a group of oil cylinder jacks at the bottom retract, the standard block 1 at the arch bottom is assembled in place, and the group of oil cylinder jacks at the bottom are jacked again; then, installing two lateral standard blocks 1 by the same method by installing V-shaped bolts 11 between the tightening rings, and simultaneously, re-tightening the standard blocks 1 by the cylinder jacks at the two sides, and installing the V-shaped bolts 11 between the tightening rings and between the blocks; two adjacent blocks 2 are installed in the same method, meanwhile, the oil cylinder jack is jacked to be close to the blocks 2 again, and V-shaped bolts 11 between rings and between blocks are tightened; finally, the wedge block 3 at the capping position is radially pressed in, the oil cylinder jack is slowly jacked in along the longitudinal direction after being aligned, the V-shaped bolts 11 between the tightening rings and between the blocks are arranged, the pressing plate 10 is clamped in at the same time, and the fixing bolts 103 are tightened, so that the assembly of a group of steel pipe sheets can be completed.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The utility model provides a be used for coal mine tunnel TBM construction to strut cyclic utilization steel-pipe piece which characterized in that: the steel pipe sheet consists of three standard blocks (1) with radian of 67.5 degrees, two adjacent blocks (2) with radian of 71.25 degrees and a wedge block (3) which are spliced in a circumferential detachable manner to form a circular structure body;
the hanging seats (7) are embedded in the middle parts of the standard block (1), the adjacent block (2) and the wedge block (3); grouting joints (8) are respectively and circumferentially symmetrically embedded at two sides of a hanging seat (7) of the standard block (1) and the adjacent block (2), and the grouting joints (8) of the standard block (1) and the adjacent block (2) are positioned on the same arc-shaped central line with the hanging seat (7);
the standard block (1), the adjacent block (2) and the wedge block (3) are respectively formed by welding two arc plates, two side plates and two end plates which are matched with the standard block, and a plurality of rib plates matched with the arc plates are welded between the inner surfaces of the two arc plates at equal intervals.
2. The steel pipe sheet for cyclic utilization of TBM construction support of coal mine tunnel according to claim 1, wherein: three bolt fixing pipes (6 a) are symmetrically embedded in the two sides of the arc-shaped central line of the standard block (1) and the adjacent block (2) at equal intervals in the circumferential direction respectively; the end parts of the standard blocks (1) are axially and symmetrically embedded with bolt fixing inclined pipes (6 b) along the arc central lines of the standard blocks respectively; the end part of the adjacent block (2) facing the wedge block (3) is axially and symmetrically embedded with a support (9) with a groove-shaped structure along the arc-shaped central line of the support, and the other end part of the adjacent block (2) is axially and symmetrically embedded with a bolt fixing inclined tube (6 b) along the arc-shaped central line of the support; the end parts of the wedge blocks (3) are respectively and axially symmetrically embedded with bolt fixing pipes (6 a) along the arc central lines of the wedge blocks; the two axially opposite bolt fixing pipes (6 a) and the two circumferentially opposite bolt fixing inclined pipes (6 b) are connected through a V-shaped bolt (11) matched with the two axially opposite bolt fixing pipes; the two circumferentially opposite supports (9) are in snap connection through a pressing plate (10).
3. The steel pipe sheet for cyclic utilization of TBM construction support of coal mine tunnel according to claim 2, wherein: the clamp plate (10) include with voussoir (3) joint complex arc face (101), the both ends of arc face (101) are integrated respectively and are connected with pothook portion (102) perpendicularly, pothook portion (102) with corresponding support (9) joint cooperation, arc face (101) are connected with corresponding voussoir (3) and adjacent piece (2) through fastening bolt (103) respectively.
4. The steel pipe sheet for cyclic utilization of TBM construction support of coal mine tunnel according to claim 2, wherein: the bolt fixing pipe (6 a) and the bolt fixing inclined pipe (6 b) have the same structure; the bolt fixing tube (6 a) comprises a fixing groove (61) with a dustpan-shaped structure, and an arc tube (62) is welded on the end surface of the fixing groove (61) in a communicating manner; the two arc-shaped pipes (62) are connected through the V-shaped bolts (11) which are in plug-in fit.
5. The steel pipe sheet for cyclic utilization of TBM construction support of coal mine tunnel according to claim 2, wherein: the standard block (1) and the adjacent block (2) are located at the same side arc edges and are respectively provided with two oil cylinder seats (5) in an axial opposite mode, the two oil cylinder seats (5) are respectively symmetrically arranged along the circumferential direction of the corresponding hanging seat (7), and the oil cylinder seats (5) are of groove-shaped structures with one ends open.
6. The steel pipe sheet for cyclic utilization of TBM construction support of coal mine tunnel according to any one of claims 1 to 5, wherein: the circumferential splicing seams among the standard block (1), the adjacent block (2) and the wedge block (3) are embedded with sealing rings (4) which are matched with the circumferential splicing seams; the sealing ring (4) matched with the two steel pipe sheets is embedded in the axial butt joint between the two steel pipe sheets.
7. The steel pipe sheet for cyclic utilization of TBM construction support of coal mine tunnel according to claim 6, wherein: the joint-staggering splicing angle of two adjacent steel pipe sheets is 22.5 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320305950.XU CN219316966U (en) | 2023-02-21 | 2023-02-21 | Steel pipe sheet for TBM construction support cyclic utilization of coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320305950.XU CN219316966U (en) | 2023-02-21 | 2023-02-21 | Steel pipe sheet for TBM construction support cyclic utilization of coal mine tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN219316966U true CN219316966U (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320305950.XU Active CN219316966U (en) | 2023-02-21 | 2023-02-21 | Steel pipe sheet for TBM construction support cyclic utilization of coal mine tunnel |
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| CN (1) | CN219316966U (en) |
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- 2023-02-21 CN CN202320305950.XU patent/CN219316966U/en active Active
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