CN117145526B - Constant-resistance large-deformation truss anchor cable supporting device - Google Patents
Constant-resistance large-deformation truss anchor cable supporting device Download PDFInfo
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- CN117145526B CN117145526B CN202311428211.0A CN202311428211A CN117145526B CN 117145526 B CN117145526 B CN 117145526B CN 202311428211 A CN202311428211 A CN 202311428211A CN 117145526 B CN117145526 B CN 117145526B
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 230000000670 limiting effect Effects 0.000 claims description 13
- 239000011435 rock Substances 0.000 claims description 6
- 239000003245 coal Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Abstract
The invention provides a constant-resistance large-deformation truss anchor cable supporting device, and relates to the field of roof supporting. The support device comprises a watch-protecting steel plate, sliding bodies and inclined-pulling anchor cables, wherein sliding channels are formed in two ends of the watch-protecting steel plate along the length direction of the watch-protecting steel plate, and a plurality of groups of constant-resistance protrusions are arranged on the inner wall of the sliding channels at intervals along the length direction of the watch-protecting steel plate; the sliding body is arranged in the sliding channel and can slide along the length direction of the watch-protecting steel plate after overcoming the resistance of the constant resistance bulge; one end of the cable-stayed anchor cable is fixedly arranged on the sliding body, and the other end of the cable-stayed anchor cable is outwards inserted into the top plate to be supported after penetrating through the avoidance hole of the surface protection steel plate. In the supporting device, the surface area of the steel plate serving as the truss is relatively large; the cable-stayed anchor cable is matched with the surface protection steel plate, so that high extrusion pretightening force in the vertical direction and the horizontal direction can be provided for the top plate simultaneously; when the roof sinks, the watch protecting steel plate is pressed through deformation, and the constant resistance bulge can provide constant resistance, so that the supporting device has high and durable supporting strength and good supporting effect.
Description
Technical Field
The invention relates to the technical field of roof supports, in particular to a constant-resistance large-deformation truss anchor cable support device.
Background
For roadways with complex roof conditions, such as roadways under close-range goafs or roadways covered with close-range aquifers, the supporting range of the roadway roof is limited, so that a targeted surrounding rock control scheme is needed to control. However, the supporting device in the prior art has weak supporting strength and poor supporting effect.
Disclosure of Invention
The invention aims to provide a constant-resistance large-deformation truss anchor cable supporting device, which aims to solve the technical problem that the supporting strength of the supporting device in the prior art is weak.
The invention provides a constant-resistance large-deformation truss anchor cable supporting device which comprises a surface protection steel plate, sliding bodies and cable-stayed anchor cables, wherein sliding channels are arranged at two ends of the surface protection steel plate along the length direction of the surface protection steel plate, a plurality of groups of constant-resistance bulges are arranged on the inner wall of each sliding channel, and a plurality of groups of constant-resistance bulges are arranged at intervals along the length direction of the surface protection steel plate; the watch-protecting steel plate is also provided with an avoidance hole; the sliding body is arranged in the sliding channel and can slide along the length direction of the watch-protecting steel plate after overcoming the resistance of the constant resistance bulge; one end of the cable-stayed anchor cable is fixedly arranged on the sliding body, and the other end of the cable-stayed anchor cable penetrates through the avoidance hole and is outwards and obliquely inserted into the coal rock mass of the top plate to be supported.
The constant-resistance large-deformation truss anchor cable supporting device provided by the invention has the following beneficial effects:
the constant-resistance large-deformation truss anchor cable supporting device provided by the invention is used as a steel plate of a protecting surface of a truss, and can be used for carrying out surface contact supporting on a roadway top plate; the cable-stayed anchor cable is matched with the surface protection steel plate, so that high extrusion pretightening force in the vertical direction and the horizontal direction can be provided for the tunnel roof at the same time, and the coal rock mass in the anchoring area is in a multidirectional high-pressure stress state; when the top plate sinks, the watch protecting steel plate is pressed by deformation, and meanwhile the sliding body overcomes the resistance of the constant resistance bulge in the sliding channel and slides towards the end part of the watch protecting steel plate, so that the deformation pressing is realized. The constant-resistance large-deformation truss anchor cable supporting device provided by the invention has the advantages that the protecting surface area is relatively large, the multidirectional high pretightening force can be provided, and the constant resistance can be provided when the top plate is sunk, so that the supporting strength is high and durable, and the supporting effect is good.
Further, the sliding channel is arranged in a closed way along the circumferential direction.
Under this technical scheme, the passageway wall of passageway that slides can play good guard action to the portion that the constant resistance is protruding and the body that slides is located the passageway that slides, also can effectively avoid debris to get into and slide and lead to the smooth and easy condition emergence of body that slides in the passageway.
Further, the constant resistance protrusion is a thread.
Further, the threads are rigid threads.
Further, the avoidance hole is a slotted hole, and the length direction of the avoidance hole is consistent with the sliding direction of the sliding body.
Under this technical scheme, when the roof sinks and warp, the roof applys effort in strutting arrangement, and the body that slides to both ends, draws the anchor rope to one side simultaneously along dodging the hole and remove to both ends.
Further, the sliding body is provided with an anchor cable hole, the anchor cable hole is communicated with the avoidance hole, and is obliquely arranged from one end far away from the watch-protecting steel plate to one end close to the watch-protecting steel plate, and the anchor cable hole is obliquely arranged towards the end part of the nearby watch-protecting steel plate; and the cable-stayed anchor cable is arranged in the anchor cable hole in a penetrating way.
Under the technical scheme, during construction, one end of the cable-stayed anchor cable and one end of the top plate anchor sequentially penetrate through the anchor cable hole and the avoidance hole and then are obliquely inserted into the top plate.
Further, the supporting device further comprises a reinforced anchor rope, fixing plates are fixedly arranged at two ends of the surface protection steel plate along the length direction of the surface protection steel plate, and two ends of the reinforced anchor rope are fixedly arranged on the corresponding fixing plates respectively.
Under this technical scheme, strengthen the anchor rope also can provide the resistance that resists roof deformation, so strengthen the anchor rope and can strengthen the support intensity of strutting arrangement.
Further, the number of the reinforced anchor cables is two, and the reinforced anchor cables are respectively arranged on two sides of the sliding body along the width direction of the watch protecting steel plate.
Further, along the width direction of the watch-protecting steel plate, two reinforcing anchor cables are symmetrically arranged on two sides of the sliding body.
Under the technical scheme, the supporting strength of the supporting device is symmetrical, and the supporting effect on the top plate is relatively balanced.
Further, the length direction of the reinforced anchor cable is consistent with the length direction of the armor plate.
Further, along the width direction of the watch-protecting steel plate, at least one side of the sliding body is provided with a guide hole, and the extending direction of the guide hole is consistent with the moving direction of the sliding body; the reinforced anchor cable is arranged in the guide hole on the same side of the reinforced anchor cable in a penetrating mode, and the sliding body can slide along the reinforced anchor cable.
Under this technical scheme, strengthen the anchor rope and not only play the effect that improves support intensity, still play spacing and the effect of direction to the sliding body.
Further, the watch-protecting steel plate is also fixedly provided with at least one limiting pipe, the limiting pipe coincides with the central line of the reinforcing anchor cable, and the reinforcing anchor cable penetrates through the limiting pipe.
Under this technical scheme, spacing pipe plays spacing effect to strengthening the anchor rope, can effectively avoid strengthening the anchor rope and break away from the armor plate when armor plate bears pressure deformation to can improve the supporting effect.
Further, the watch-protecting steel plate is a flat steel plate, or the watch-protecting steel plate is a W steel belt.
Under this technical scheme, for traditional I-steel and channel-section steel, flat steel plate and W steel band have certain deformability, when the roof is sunken, can warp and let the pressure, so, adopt flat steel plate or W steel band can improve the flexibility of truss, help realizing flexible support.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a partial cross-sectional structure of a constant-resistance large-deformation truss anchor cable supporting device provided by an embodiment of the invention;
fig. 2 is a schematic longitudinal section structure of the constant-resistance large-deformation truss anchor cable supporting device provided by the embodiment of the invention.
Reference numerals illustrate:
100-protecting surface steel plates; 110-avoiding holes;
200-glide; 210-anchor cable holes;
300-slip path; 310-screw thread;
400-stayed anchor cable;
510-reinforcing the anchor lines; 520-fixing plate; 530-a fixing member; 540-limiting tube.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. 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 invention.
The embodiment provides a constant-resistance large-deformation truss anchor cable supporting device, as shown in fig. 1 and 2, the supporting device comprises a watch-protecting steel plate 100, sliding bodies 200 and cable-stayed anchor cables 400, wherein sliding channels 300 are arranged at two ends of the watch-protecting steel plate 100 along the length direction, a plurality of groups of constant-resistance bulges are arranged on the inner wall of the sliding channel 300, and the plurality of groups of constant-resistance bulges are arranged at intervals along the length direction of the watch-protecting steel plate 100; the watch guard steel plate 100 is also provided with an avoidance hole 110; the sliding body 200 is arranged in the sliding channel 300 and can slide along the length direction of the watch-protecting steel plate 100 after overcoming the resistance of the constant resistance bulge; one end of the cable-stayed anchor cable 400 is fixedly arranged on the sliding body 200, and the other end of the cable-stayed anchor cable passes through the avoidance hole 110 and is outwards and obliquely inserted into the coal rock mass of the top plate to be supported.
The constant-resistance large-deformation truss anchor cable supporting device provided by the embodiment is used as the surface protection steel plate 100 of the truss, and can be used for carrying out surface contact supporting on a roadway roof; the cable-stayed anchor cable 400 is matched with the watch-protecting steel plate 100, so that high extrusion pretightening force in the vertical direction and the horizontal direction can be provided for the tunnel roof at the same time, and the coal rock mass in the anchoring area is in a multidirectional high-pressure stress state; when the top plate is sunk, the watch-protecting steel plate 100 is deformed and pressed, and meanwhile the sliding body 200 overcomes the resistance of the constant resistance bulge in the sliding channel 300 and slides towards the end part of the watch-protecting steel plate 100, so that the deformation and pressing are realized. That is, the constant-resistance large-deformation truss anchor cable supporting device provided by the embodiment has larger protective surface area, can provide multidirectional high pretightening force, and can provide constant resistance when the top plate sinks, so that the supporting strength is high and durable, and the supporting effect is good.
Specifically, in the present embodiment, the slip passage 300 is provided in a closed manner in the circumferential direction. Under the setting form, the channel wall of the sliding channel 300 can play a good role in protecting the constant resistance bulge and the part of the sliding body 200 positioned in the sliding channel 300, and the situation that the sliding body 200 slides unsmoothly due to sundries entering the sliding channel 300 can be effectively avoided. Of course, in other embodiments of the present application, the slip passage 300 is not limited to a circumferentially closed passage, but may also have openings, such as: the channel wall of the sliding channel 300 opposite to the exterior sheathing steel plate 100 is provided with an opening, which may be extended along the length direction of the exterior sheathing steel plate 100 and may penetrate both ends of the channel wall; as for the width of the opening, it may be determined according to the width of the sliding body 200, so long as the channel wall is ensured to have a limiting effect on the sliding body 200 located in the sliding channel 300.
Specifically, in the present embodiment, the sliding passage 300 has a square frame shape in cross section perpendicular to the axial direction thereof.
Specifically, in the present embodiment, as shown in fig. 1 and 2, each side wall of the slip passage 300 is provided with a constant resistance protrusion. By the arrangement, the resistance provided by each group of constant resistance bulges is relatively large, so that the deformation pressure of the top plate is relatively large. Of course, in other embodiments of the present application, only part of the side wall may be provided with constant resistance protrusions, for example: only two opposite side walls in the width direction of the exterior protection steel plate 100 may be provided with constant resistance protrusions, as long as the resistance requirement can be satisfied.
Specifically, in this embodiment, the constant-resistance protrusions are threads 310, and one turn of threads 310 may be a set of constant-resistance protrusions. Further, the threads 310 are rigid threads, i.e., the threads 310 need to have some strength to provide the required resistance.
It should be noted that, in other embodiments of the present application, the constant resistance protrusion is not limited to the thread 310, but may be other structures, for example: the constant resistance bulge is a bulge with a trapezoid cross section. In addition, in the present embodiment, a set of constant-resistance protrusions is a complete circle of protrusions, but in other embodiments of the present application, a set of constant-resistance protrusions may also be a plurality of segments of protrusions arranged at intervals along the circumferential direction. That is, the specific structural form and arrangement of the constant resistance projections in the present application may be not limited as long as they can provide a constant resistance.
Specifically, in this embodiment, the avoidance hole 110 is a oblong hole, and the length direction of the avoidance hole 110 is consistent with the sliding direction of the sliding body 200. When the top plate is sunk and deformed, the top plate applies a force to the supporting device, the sliding body 200 slides towards two ends, and simultaneously the cable-stayed anchor cable 400 moves towards two ends along the avoidance holes 110.
Specifically, in this embodiment, as shown in fig. 1 and 2, the sliding body 200 is provided with an anchor cable hole 210, the anchor cable hole 210 is communicated with the avoidance hole 110, and the anchor cable hole 210 is inclined toward the end of the nearby watch-protecting steel plate 100 from the end far from the watch-protecting steel plate 100 to the end near the watch-protecting steel plate 100; the cable stay cable 400 is inserted into the cable hole 210. During construction, one end of the cable-stayed anchor cable 400 anchored with the top plate sequentially passes through the anchor cable hole 210 and the avoiding hole 110 and is then obliquely inserted into the top plate.
Specifically, in this embodiment, as shown in fig. 1, the supporting device further includes a reinforcing anchor cable 510, and fixing plates 520 are fixedly disposed at two ends of the surface protection steel plate 100 along the length direction thereof, and two ends of the reinforcing anchor cable 510 are fixedly disposed on the corresponding fixing plates 520 respectively. In this arrangement, the reinforcing cable 510 can also provide resistance against deformation of the roof panel, so the reinforcing cable 510 can enhance the supporting strength of the supporting device.
Specifically, in this embodiment, the reinforcing anchor cable 510 is fixed to the fixing plate 520 by the fixing member 530, and further, the reinforcing anchor cable 510 is a steel strand; the fixing member 530 is a lock.
Specifically, in this embodiment, as shown in fig. 1, the number of the reinforcing anchor lines 510 is two, and the two reinforcing anchor lines 510 are respectively disposed on both sides of the sliding body 200 along the width direction of the armor plate 100.
More specifically, in the present embodiment, two reinforcing anchor lines 510 are symmetrically disposed on both sides of the skid body 200 along the width direction of the armor plate 100. The supporting device is symmetrical in supporting strength, and the supporting effect on the top plate is relatively balanced.
Specifically, in this embodiment, as shown in fig. 1, the length direction of the reinforcing anchor line 510 coincides with the length direction of the armor plate 100.
Specifically, in the present embodiment, guide holes are provided on both sides of the sliding body 200 along the width direction of the armor plate 100, and the extending direction of the guide holes is consistent with the moving direction of the sliding body 200; the reinforced anchor cable 510 is inserted into the guide hole on the same side thereof, and the sliding body 200 can slide along the reinforced anchor cable 510. In this arrangement, the reinforced anchor cable 510 not only serves to increase the strength of the support, but also serves to limit and guide the skid 200.
In other embodiments of the present application, the sliding body 200 is not limited to be provided with guide holes on both sides, and may be provided with guide holes on only one side. In addition, the structure for guiding the sliding body 200 during sliding is not limited to the guiding hole and the reinforced cable 510, but may be other structures, for example: the watch-protecting steel plate 100 can be provided with a sliding groove, the sliding body 200 can be provided with a sliding block, the sliding block is matched with the sliding groove, and when the sliding body 200 moves, the sliding block slides along the sliding groove.
Specifically, in the present embodiment, the fixing plate 520 is disposed opposite to the port of the sliding channel 300, and the fixing plate 520 can block the sliding body 200 from sliding out of the port of the sliding channel 300. So configured, the fixing plate 520 not only can fix the reinforced anchor cable 510, but also can block the sliding body 200 from sliding out of the sliding channel 300; in addition, the direction of the acting force applied to the fixed plate 520 by the reinforcing anchor cable 510 and the sliding body 200 is opposite, so that the reinforcing anchor cable 510 can block the sliding body 200 from sliding out of the sliding channel 300 by means of the fixed plate 520, and the sliding body 200 can apply a pulling force to the reinforcing anchor cable 510 by means of the fixed plate 520, thereby improving the supporting force of the reinforcing anchor cable 510.
Specifically, in this embodiment, at least one limiting tube 540 is also fixedly disposed on the watch-protecting steel plate 100, the center lines of the limiting tube 540 and the reinforced anchor cable 510 coincide, and the reinforced anchor cable 510 is threaded through the limiting tube 540. Under this kind of setting form, spacing pipe 540 plays spacing effect to strengthening anchor rope 510, can effectively avoid strengthening anchor rope 510 and break away from armor plate 100 when armor plate 100 bears pressure deformation to can improve the supporting effect.
More specifically, in this embodiment, each reinforcing anchor cable 510 is configured with three limiting pipes 540, one of which is centrally disposed and the other two of which are respectively disposed near one end portion along the length direction of the armor plate 100.
Preferably, the portion of the sliding body 200 where the guide hole is provided is located between two adjacent limiting pipes 540, and the limiting pipe 540 disposed near the end of the armor plate 100 can block the sliding of the sliding body 200 so as not to slide out from the port of the sliding channel 300.
Specifically, in the present embodiment, the exterior protection steel plate 100 is a flat steel plate, or the exterior protection steel plate 100 is a W steel strip. Compared with the traditional I-steel and channel steel, the flat steel plate and the W steel belt have certain deformability, and when the top plate sinks, the flat steel plate or the W steel belt can deform and press, so that the flexibility of the truss can be improved by adopting the flat steel plate or the W steel belt, and the flexible support can be realized.
In summary, the working process of the constant-resistance large-deformation truss anchor cable supporting device provided by the embodiment is approximately as follows:
after the constant-resistance large-deformation truss anchor cable supporting device is constructed on the roadway top plate, the supporting device applies multidirectional high pretightening force to the top plate;
when the top plate is deformed and sunk, the watch protecting steel plate 100 is deformed and pressed, and simultaneously the sliding body 200 slides towards the two ends of the watch protecting steel plate 100 under the pushing of the horizontal component force applied to the supporting device by the top plate;
the constant resistance protrusions (i.e., threads 310) disposed on the inner surface of the sliding channel 300 block the sliding body 200 from sliding, and when the horizontal pushing force is greater than the resistance of the Yu Heng resistance protrusions, the sliding body 200 breaks the constant resistance protrusions and moves further;
when the sliding body 200 breaks one group of constant resistance protrusions (namely one circle of threads 310), the same resistance can be met when the sliding body slides to the next group of constant resistance protrusions, and the plurality of groups of constant resistance protrusions prevent the failure of the truss anchor cable supporting device by providing constant working resistance until the horizontal component force is smaller than Yu Heng resistance of the protrusions, so that the purpose of deformation and yielding is achieved.
The truss anchor rope supporting device that this embodiment provided, the guard surface area is big, can provide the high pretightning force of vertical direction and horizontal direction simultaneously, can let the characteristics that press deformation adaptation tunnel roof was submerged, and can keep invariable operating resistance in the in-process of letting press deformation, realizes that the constant resistance lets press the support, can be applied to the support of collecting the sky area in a short distance or closely water-bearing layer roof in a short distance, to strengthening the roof support, improvement tunnel stability has obvious advantage, can compensate the limited defect that leads to of roof support length supporting strength reduces.
Finally, it is further noted that relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a constant resistance large deformation truss anchor rope strutting arrangement which characterized in that includes:
the surface protection steel plate (100), both ends of the surface protection steel plate (100) along the length direction are provided with sliding channels (300), the inner wall of each sliding channel (300) is provided with a plurality of groups of constant resistance protrusions, and a plurality of groups of constant resistance protrusions are arranged at intervals along the length direction of the surface protection steel plate (100); the watch-protecting steel plate (100) is also provided with an avoidance hole (110);
the sliding body (200) is arranged in the sliding channel (300), and can slide along the length direction of the watch-protecting steel plate (100) after overcoming the resistance of the constant resistance bulge;
one end of the cable-stayed anchor cable (400) is fixedly arranged on the sliding body (200), and the other end of the cable-stayed anchor cable (400) passes through the avoidance hole (110) and is then inserted into the coal rock mass of the top plate to be supported outwards in an inclined manner;
the avoidance hole (110) is a slotted hole, and the length direction of the avoidance hole (110) is consistent with the sliding direction of the sliding body (200).
2. The constant resistance large deformation truss anchor cable support device according to claim 1, wherein the sliding channel (300) is arranged in a circumferential closed manner.
3. The constant resistance large deformation truss anchor line support device of claim 1, wherein the constant resistance protrusions are threads (310).
4. The constant-resistance large-deformation truss anchor cable supporting device according to claim 1, wherein the sliding body (200) is provided with anchor cable holes (210), the anchor cable holes (210) are communicated with the avoidance holes (110) and are obliquely arranged from one end far away from the watch-protecting steel plate (100) to one end close to the watch-protecting steel plate (100), and the anchor cable holes (210) are obliquely arranged towards the end of the nearby watch-protecting steel plate (100); the cable-stayed anchor cable (400) is arranged in the anchor cable hole (210) in a penetrating mode.
5. The constant resistance large deformation truss anchor cable supporting device according to any one of claims 1 to 4, further comprising a reinforcing anchor cable (510), wherein fixing plates (520) are fixedly arranged at two ends of the surface protection steel plate (100) along the length direction, and two ends of the reinforcing anchor cable (510) are fixedly arranged on the corresponding fixing plates (520).
6. The constant-resistance large-deformation truss anchor cable supporting device according to claim 5, wherein the number of the reinforced anchor cables (510) is two, and the two reinforced anchor cables (510) are respectively arranged at two sides of the sliding body (200) along the width direction of the surface protection steel plate (100).
7. The constant-resistance large-deformation truss anchor cable supporting device according to claim 5, wherein a guide hole is formed in at least one side of the sliding body (200) along the width direction of the armor plate (100), and the extending direction of the guide hole is consistent with the moving direction of the sliding body (200); the reinforced anchor cable (510) is arranged in the guide hole on the same side of the reinforced anchor cable in a penetrating mode, and the sliding body (200) can slide along the reinforced anchor cable (510).
8. The constant-resistance large-deformation truss anchor cable supporting device according to claim 5, wherein at least one limiting pipe (540) is further fixedly arranged on the surface protection steel plate (100), the limiting pipe (540) coincides with the central line of the reinforced anchor cable (510), and the reinforced anchor cable (510) penetrates through the limiting pipe (540).
9. The constant resistance large deformation truss anchor cable support device according to any one of claims 1-4, wherein the armor plate (100) is a flat plate or the armor plate (100) is a W-steel strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311428211.0A CN117145526B (en) | 2023-10-31 | 2023-10-31 | Constant-resistance large-deformation truss anchor cable supporting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311428211.0A CN117145526B (en) | 2023-10-31 | 2023-10-31 | Constant-resistance large-deformation truss anchor cable supporting device |
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| CN117145526A CN117145526A (en) | 2023-12-01 |
| CN117145526B true CN117145526B (en) | 2024-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150192016A1 (en) * | 2014-01-07 | 2015-07-09 | DSI Systems Underground, Inc. | Truss eye |
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|---|---|---|---|---|
| CN2147352Y (en) * | 1993-03-30 | 1993-11-24 | 煤炭科学研究总院北京开采研究所 | Anchor truss |
| US6884005B1 (en) * | 2004-06-18 | 2005-04-26 | Ben L. Seegmiller | Roof support truss |
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