CN112160783A - Underground broken rock mass tunnel engineering struts quick strutting arrangement - Google Patents
Underground broken rock mass tunnel engineering struts quick strutting arrangement Download PDFInfo
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- CN112160783A CN112160783A CN202010892385.2A CN202010892385A CN112160783A CN 112160783 A CN112160783 A CN 112160783A CN 202010892385 A CN202010892385 A CN 202010892385A CN 112160783 A CN112160783 A CN 112160783A
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- supporting
- rod
- hydraulic
- supporting rod
- support
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a quick supporting device for underground broken rock mass tunnel engineering support, which comprises a moving wheel, a base, a supporting structure and a linkage mechanism, wherein the moving wheel is arranged on the base; the supporting structure comprises a shell, a first hydraulic supporting rod and a supporting and protecting plate; the linkage mechanism comprises two synchronous driving groups which are positioned in the shell, and each synchronous driving group comprises a first sliding groove, a second sliding groove, a first supporting rod, a second supporting rod, a first gear and a second gear. The invention is provided with a supporting structure and a linkage mechanism, and the supporting plate is quickly supported through the flexibility of the hydraulic rod so as to realize supporting of the tunnel wall, is composed of a plurality of blocks, can be folded, unfolded and folded through hinging, has high mobility in the tunnel space, is suitable for supporting the tunnel walls with different heights and different widths, has stronger applicability, free folding and unfolding, high supporting speed, stable supporting and repeated use, and provides a new scheme for temporary supporting of the tunnel.
Description
Technical Field
The invention belongs to the technical field of engineering support, and particularly relates to a quick support device for an underground broken rock mass tunnel engineering support.
Background
In the construction process of an underground broken rock mass tunnel, when a weak surrounding rock section with poor stability enters, in order to inhibit the deformation of the surrounding rock and ensure the construction safety of the tunnel, temporary support is generally adopted during excavation to increase the overall rigidity of the broken rock mass, after the construction of the tunnel wall is completed, the strength of the tunnel wall reaches a certain degree, and then the temporary support is detached to carry out sectional excavation. At present, temporary support mainly comprises a scaffold and a steel plate, the operation is complex, the operation is inconvenient in a narrow space of a tunnel, and the construction speed is low. The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art, provides a quick support device for underground broken rock mass tunnel engineering support, and adopts the following basic concept:
a quick supporting device for underground broken rock mass tunnel engineering support comprises moving wheels, a base, a supporting structure and a linkage mechanism, wherein the moving wheels are installed on the base;
the supporting structure is arranged on the base, the width of the base is smaller than that of the section of the tunnel, the supporting structure comprises a shell, a first hydraulic supporting rod and a supporting and protecting plate, the first hydraulic supporting rod is arranged at the middle point of the width direction of the base, the first hydraulic supporting rod is positioned in the shell, the shell is provided with a hole for a rod head of the first hydraulic supporting rod to extend out, the section width of the shell is smaller than that of the section of the tunnel, the supporting and protecting plate is an arc-shaped plate and positioned outside the shell, the supporting and protecting plate is a plurality of supporting and protecting plates, the plurality of supporting and protecting plates can be spliced to form a semi-circular arc or a major arc, the shape of the semi-circular;
the linkage mechanism comprises two synchronous driving groups positioned in the shell, each synchronous driving group comprises a first sliding groove, a second sliding groove, a first supporting rod, a second supporting rod, a first gear and a second gear, the first sliding groove is arranged below the second sliding groove, the first supporting rod moves in the first sliding groove in a limiting mode, the second supporting rod moves in the second sliding groove in a limiting mode, the first supporting rod is meshed with the first gear, the first gear is meshed with the second gear, the second gear is meshed with the second supporting rod and a first hydraulic supporting rod, the tail ends of the first sliding groove and the second sliding groove extend out of the outer wall of the shell, the first supporting rod and the second supporting rod extend out of the shell and are rotatably connected with the supporting plate, and the rod head of the first hydraulic supporting rod is rotatably connected with the supporting plate;
two synchronous drive groups are with base width to midpoint symmetrical arrangement, and when first hydraulic support pole stretched out the casing, first hydraulic support pole drive second gear to make second gear drive second bracing piece stretch out the casing, drive first gear cause first bracing piece to stretch out the casing, and then lead to a plurality of timbering boards to form semicircle or major arc.
Further, the base is connected with the base through a second hydraulic support rod, the second hydraulic support rod is a plurality of and all do not set up, first hydraulic support rod, second hydraulic support rod all are connected with the controller, the controller sets up on the base.
Furthermore, the number of the supporting plates is four, the supporting plates are symmetrically distributed, the rod head of the first hydraulic supporting rod is hinged to the left supporting plate and the right supporting plate of the symmetrical point, and the first supporting rod and the second supporting rod are rotatably connected with one supporting plate.
Further, prop up the backplate and be the rigidity board, first bracing piece, second bracing piece all are equipped with the rotation head, prop up the backplate and be equipped with and supply to rotate the head slip and pivoted slide rail, the slide rail is the arc.
Further, the moving wheels are crawler belts, and the first hydraulic supporting rod is hinged to the supporting plate through a supporting seat.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The invention is provided with a supporting structure and a linkage mechanism, and the supporting plate is quickly supported through the flexibility of the hydraulic rod so as to realize supporting of the tunnel wall, is composed of a plurality of blocks, can be folded, unfolded and folded through hinging, has high mobility in the tunnel space, is suitable for supporting the tunnel walls with different heights and different widths, has stronger applicability, free folding and unfolding, high supporting speed, stable supporting and repeated use, and provides a new scheme for temporary supporting of the tunnel.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic structural view of a hydraulic support rod according to the present invention in an extended state;
fig. 2 is a schematic structural view of the hydraulic support rod in a retracted state.
In the figure: 1-moving wheel, 2-base, 31-shell, 32-first hydraulic support rod, 33-protection plate, 34-support seat, 41-first slide groove, 42-first support rod, 43-first gear, 44-second gear, 45-second support rod, 46-second slide groove, 5-controller, 6-base and 7-second hydraulic support rod.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
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 will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
Example one
As shown in fig. 1-2, the quick support device for underground broken rock mass tunnel engineering support in the present embodiment includes a moving wheel 1, a base 6, a base 2, a support structure, and a linkage mechanism, where the moving wheel 1 is installed on the base 6, and the base 2 is installed on the base 6, and in this example, the moving wheel 1 is a crawler, and the stability of the crawler is better.
Wherein the support structure is arranged on a base 2, the width of the base 2 being smaller than the width of the tunnel cross-section. The support structure comprises a housing 31, a first hydraulic support bar 32 and a support plate 33, wherein the first hydraulic support bar 32 is arranged at the middle point of the base 2 in the width direction, the first hydraulic support bar 32 is positioned in the housing 31, and the housing 31 is provided with a hole for extending a club head of the housing, namely a top part shown in figure 1. The cross-sectional width of the housing 31 is smaller than the cross-sectional width of the tunnel, where the cross-sectional width of the housing 31 is also smaller than the width of the base 2, as shown in fig. 1. The supporting plates 33 are arc-shaped plates and are located outside the shell 31, the number of the supporting plates 33 is several, and the supporting plates 33 can be spliced into a semi-circular arc or a major arc, in this example, the number of the supporting plates 33 is four, and the splicing is performed into a semi-circular arc. If the arc is a semi-arc, the diameter of the semi-arc is the same as the width of the section of the tunnel, and if the arc is a major arc, the arc shape of the major arc is the same as the shape of the section of the tunnel. And a plurality of supporting plates 33, and every two adjacent supporting plates 33 are hinged together.
The linkage here comprises two synchronous drive groups located in the housing 31, the synchronous drive groups comprising a first runner 4, a second runner 46, a first support rod 42, a second support rod 45, a first gear 43, a second gear 44. The first sliding groove 4 is arranged below the second sliding groove 46, the first supporting rod 42 moves in the first sliding groove 4 in a limiting mode, the second supporting rod 45 moves in the second sliding groove 46 in a limiting mode, and the sliding grooves limit the supporting rods to move linearly in the example. The first support rod 42 is meshed with the first gear 43, the first gear 43 is meshed with the second gear 44, the second gear 44 is meshed with the second support rod 45 and the first hydraulic support rod 32, and transmission is achieved through mutual meshing, and referring to fig. 1, the transmission relationship between the support rods and the gears is shown. The tail ends of the first sliding chute 4 and the second sliding chute 46 extend out of the outer wall of the shell 31, the first supporting rod 42 and the second supporting rod 45 extend out of the shell 31 to be rotatably connected with the supporting and protecting plate 33, and the rod head of the first hydraulic supporting rod 32 is rotatably connected with the supporting and protecting plate 33;
the two synchronous drive groups are arranged symmetrically at the midpoint in the width direction of the base 2, namely, symmetrically left and right. When the first hydraulic support rod 32 extends out of the housing 31, the first hydraulic support rod 32 drives the second gear 44, so that the second gear 44 drives the second support rod 45 to extend out of the housing 31, drives the first gear 43 to cause the first support rod 42 to extend out of the housing 31, and further causes the plurality of backup plates 33 to form a semi-circular arc or an major arc. That is, when the first hydraulic support rod 32 extends out of the casing 31, the second gear 44 is driven to rotate, the second gear 44 drives the second support rod 45 to extend out of the casing 31 when rotating, the second gear 44 simultaneously drives the first gear 43 to rotate, the first gear 43 drives the first support rod 42 to extend out of the casing 31 when rotating, and finally the support plate 33 is supported to form a semi-circular arc or a major arc so as to be attached to and support the tunnel wall. Conversely, when the first hydraulic support bar 32 is retracted, both the first support bar 42 and the second support bar 45 are retracted. In this way, the purpose of retracting the retaining plate 33 by the expansion and contraction of the hydraulic rod is achieved. It should be noted that, the telescopic distance of the first support rod 42 and the second support rod 45 is set according to the requirement, or the model of the control gear, in this example, the size of the gear is the same, the telescopic distance of the first support rod 42 and the second support rod 45 is the same as the telescopic distance of the first hydraulic support rod 32, and the telescopic distance length can ensure that the support plate 33 is retracted, so that the width of the retracted support plate 33 is smaller than the width of the tunnel interface, and the movement is convenient.
The area of the support plate 33 is determined by the axial force of the support rod, the rigidity of the support plate 33, and the like, and when a large area of support is performed in the depth direction of the tunnel, a plurality of the devices of the present invention can be applied, and the plurality of devices are arranged in line in the depth direction of the tunnel, and the support plates 33 are mutually aligned to support in a large area. Or, a plurality of supporting structures and linkage mechanisms are adopted on the base plate, the supporting structures and the linkage mechanisms are arranged in a line, and the supporting and protecting plates 33 are spliced to form large-area supporting. The supporting and protecting plate 33 can form a tunnel wall with a semicircular section below the semicircular arc, can be continuously spliced by steel plates, is convenient to construct due to a lower position, and can be adjusted according to the height of the tunnel.
In the embodiment, the base 2 is connected with the base 6 through the second hydraulic support rod 7, the second hydraulic support rods 7 are a plurality of hydraulic support rods and are not arranged, the second hydraulic support rod 7 can jack up or drop the part above the base 2 integrally, the vertical lifting of the upper protection plate 33 on the base 2 is realized, a more flexible lifting space is provided for the support plate 33, and the device is favorable for moving in a tunnel. First hydraulic support pole 32, second hydraulic support pole 7 all are connected with controller 5, and controller 5 sets up on base 6.
The number of the supporting plates 33 can be set according to the requirement, and the number of the corresponding synchronous driving sets, the corresponding supporting rods and the corresponding gears can also be set according to the requirement. In the present embodiment, the number of the support plates 33 is four, and the support plates are symmetrically distributed, as shown in fig. 1. The head of the first hydraulic support rod 32 is hinged with the left and right support plates 33 at the symmetrical points, and the first support rod 42 and the second support rod 45 are rotatably connected with one support plate 33. As shown in fig. 1, the support guard plate 33 is divided into four parts, i.e., a left lower support rod 42, a left upper support rod 45, a right second support rod 45, and a right lower support rod 42, so that the left first support rod 42 is rotatably connected to the left lower support plate 33, the left second support rod 45 is rotatably connected to the left upper support plate 33, the right second support rod 45 is rotatably connected to the right upper support plate 33, and the right first support rod 42 is rotatably connected to the right lower support plate 33. The left upper guard plate 33 and the right upper guard plate 33 are hinged with the head of the first hydraulic support rod 32. The first hydraulic support rod 32 is hinged with the support guard plate 33 through a support seat 34, so that the first hydraulic support rod 32 or the support guard plate 33 can be replaced conveniently.
The supporting and stabilizing of the tunnel wall by the mechanical property of the supporting and protecting plate 33, in this example, the supporting and protecting plate 33 is a rigid plate, and of course, a stainless steel plate or other materials can be used according to the requirement. The first support rod 42 and the second support rod 45 are both provided with a rotating head, the support plate 33 is provided with a slide rail for the sliding and rotating of the rotating head, namely, the rotating head can slide in the slide rail and also can rotate in the slide rail, the slide rail is arc-shaped, and the length of the slide rail can meet the length of the first support rod 42 and the second support rod 45.
The working principle is as follows: when the device is in a retracted state (the state shown in fig. 2), the device is moved to a tunnel position to be supported, the controller 5 is operated to enable the second hydraulic support rod 7 to rise to a certain height, the height is kept, the first hydraulic support rod 32 is started, the first hydraulic support rod 32 extends, the second gear 44 is driven to rotate, the second support rod 45 is driven to extend by the second gear 44, the first gear 43 is driven to rotate, the first gear 43 drives the first support rod 42 to extend, when the first support rod 42 and the second support rod 45 extend, the rotating head can slide in the sliding rail due to the rigidity of the support plate 33, and finally the support plate 33 is supported to form a support structure consistent with the shape of the tunnel wall. And when the support is withdrawn, the reverse operation is carried out, and after the support is withdrawn, the support is moved to the next place and the support is repeated.
The invention is provided with a supporting structure and a linkage mechanism, a supporting plate 33 is quickly supported through the flexibility of a hydraulic rod so as to realize supporting of tunnel walls, the supporting plate 33 is composed of a plurality of blocks, folding and unfolding can be realized through hinging, high mobility is realized in a tunnel space, the invention is suitable for supporting of tunnel walls with different heights and different widths, the applicability is strong, the folding and unfolding are free, the supporting speed is high, the supporting is stable, the repeated use is realized, and a new scheme is provided for temporary supporting of tunnels.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a quick strutting arrangement is strutted to underground broken rock mass tunnel engineering which characterized in that: the device comprises a moving wheel, a base, a supporting structure and a linkage mechanism, wherein the moving wheel is arranged on the base;
the supporting structure is arranged on the base, the width of the base is smaller than that of the section of the tunnel, the supporting structure comprises a shell, a first hydraulic supporting rod and supporting plates, the first hydraulic supporting rod is arranged at the middle point of the width direction of the base, the first hydraulic supporting rod is positioned in the shell, the shell is provided with a hole for a rod head of the first hydraulic supporting rod to extend out, the section width of the shell is smaller than that of the section of the tunnel, the supporting plates are positioned outside the shell, the supporting plates are a plurality of supporting plates, the supporting plates can be spliced to form a semi-circular arc or a major arc, the shape of the semi-circular arc or the major arc is the same as that of the section of the;
the linkage mechanism comprises two synchronous driving groups positioned in the shell, each synchronous driving group comprises a first sliding groove, a second sliding groove, a first supporting rod, a second supporting rod, a first gear and a second gear, the first sliding groove is arranged below the second sliding groove, the first supporting rod moves in the first sliding groove in a limiting mode, the second supporting rod moves in the second sliding groove in a limiting mode, the first supporting rod is meshed with the first gear, the first gear is meshed with the second gear, the second gear is meshed with the second supporting rod and a first hydraulic supporting rod, the tail ends of the first sliding groove and the second sliding groove extend out of the outer wall of the shell, the first supporting rod and the second supporting rod extend out of the shell and are rotatably connected with the supporting plate, and the rod head of the first hydraulic supporting rod is rotatably connected with the supporting plate;
two synchronous drive groups are with base width to midpoint symmetrical arrangement, and when first hydraulic support pole stretched out the casing, first hydraulic support pole drive second gear to make second gear drive second bracing piece stretch out the casing, drive first gear cause first bracing piece to stretch out the casing, and then lead to a plurality of timbering boards to form semicircle or major arc.
2. The underground fractured rock mass tunnel engineering support rapid supporting device according to claim 1, wherein: the base is connected with the base through a second hydraulic supporting rod, the second hydraulic supporting rod is a plurality of and all do not set up, first hydraulic supporting rod, second hydraulic supporting rod all are connected with the controller, the controller sets up on the base.
3. The underground fractured rock mass tunnel engineering support rapid supporting device according to claim 1, wherein: the support guard plates are four and symmetrically distributed, the rod head of the first hydraulic support rod is hinged to the left support plate and the right support plate of the symmetrical point, and the first support rod and the second support rod are rotatably connected with one support plate.
4. The underground fractured rock mass tunnel engineering support rapid supporting device according to claim 1, wherein: the supporting and protecting plate is a rigid plate, the first supporting rod and the second supporting rod are both provided with rotating heads, the supporting and protecting plate is provided with sliding rails for the rotating heads to slide and rotate, and the sliding rails are arc-shaped.
5. The underground fractured rock mass tunnel engineering support rapid supporting device according to claim 1, wherein: the moving wheels are crawler belts, and the first hydraulic supporting rod is hinged to the supporting plate through a supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010892385.2A CN112160783B (en) | 2020-08-31 | 2020-08-31 | Quick strutting arrangement of broken rock mass tunnel engineering support in underground |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010892385.2A CN112160783B (en) | 2020-08-31 | 2020-08-31 | Quick strutting arrangement of broken rock mass tunnel engineering support in underground |
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| CN112160783A true CN112160783A (en) | 2021-01-01 |
| CN112160783B CN112160783B (en) | 2023-05-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060076A (en) * | 2021-10-13 | 2022-02-18 | 湖南科技学院 | Tunnel engineering is with fender bracket that takes precautions against earthquakes |
| CN114135307A (en) * | 2021-12-06 | 2022-03-04 | 中铁五局集团有限公司 | Tunnel excavation and supporting equipment |
| CN114233356A (en) * | 2021-12-22 | 2022-03-25 | 中铁十九局集团第三工程有限公司 | Fault breaking anti-collapse device and method for high-gas tunnel support |
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| CN114060076A (en) * | 2021-10-13 | 2022-02-18 | 湖南科技学院 | Tunnel engineering is with fender bracket that takes precautions against earthquakes |
| CN114060076B (en) * | 2021-10-13 | 2023-10-27 | 湖南科技学院 | Shock-proof protection frame for tunnel engineering |
| CN114135307A (en) * | 2021-12-06 | 2022-03-04 | 中铁五局集团有限公司 | Tunnel excavation and supporting equipment |
| CN114135307B (en) * | 2021-12-06 | 2024-01-16 | 中铁五局集团有限公司 | Tunnel excavation, supporting equipment |
| CN114233356A (en) * | 2021-12-22 | 2022-03-25 | 中铁十九局集团第三工程有限公司 | Fault breaking anti-collapse device and method for high-gas tunnel support |
| CN114233356B (en) * | 2021-12-22 | 2023-07-25 | 中铁十九局集团第三工程有限公司 | Fracture collapse prevention device and method for high-gas tunnel support |
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