Rapid construction device for unfavorable geological section of inclined shaft hole body
By adopting a support structure with top and side supports in poor geological areas of the inclined shaft, combined with the rapid assembly of guide slots and hydraulic rods, the problems of heavy weight and inconvenient installation of the trough steel support were solved, and rapid support and reinforcement effects were achieved.
Patent Information
- Application Number
- CN202510947270.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2025-09-26
AI Technical Summary
In the existing inclined shaft construction, the trough steel support is heavy and inconvenient to transport and install, making it difficult to effectively support the poor geological sections of the steep inclined shaft, especially the areas where the cave is prone to collapse.
The support body is formed by top and side supports. Combined with guide slots, trough guide rails and hydraulic rods, the support body can be quickly assembled and adjusted through slides and push plates. Guide plates and saw blades are used to form grooves in the redundant soil, which are reinforced with round tubes and anchor rods to form multi-point support.
It achieves rapid support in poor geological areas of the inclined shaft, improves construction efficiency, reduces the risk of cave collapse, and enhances support strength.
Smart Images
Figure CN120701355A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of rapid support construction of inclined shafts, and in particular to a rapid construction device for inclined shafts in poor geological areas. Background Art
[0002] Inclined shaft construction is divided into excavation construction, concrete construction, and grouting construction according to the process. During the excavation of some steep inclined shafts, poor geological conditions are prone to occur. Poor geological conditions usually refer to the presence of fault development, rock fragmentation, geological changes, and large deviations between the water content and the optimal water content around the construction environment. Common adverse geological conditions include landslides, rock bursts, and water inrush and gushing. Therefore, support operations are required for steep inclined shafts during construction excavation. Most existing support methods involve installing trough steel supports on the inner wall of the inclined shaft after excavation. The trough steel supports are heavy and not convenient for transportation within the inclined shaft. They are also not easy to locate and adjust the installation position. Summary of the Invention
[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a rapid construction device for inclined shafts in poor geological areas, thereby solving the problems of the prior art.
[0004] In order to achieve the above object, the present invention adopts the following technical solutions:
[0005] A device for rapid construction in an inclined shaft in a poor geological area comprises a top protective support and two side protective supports, wherein side plates are fixedly connected between the top protective support and the side protective supports to form a supporting body, wherein guide slots are provided on both the top protective support and the side protective supports, wherein grooved guide rails are slidably connected in the guide slots, wherein two slides are slidably connected in the slide slots of the grooved guide rails, wherein one side of the two slides is fixedly connected to a baffle, wherein one of the slides is fixedly connected to a hydraulic rod, and the telescopic end of the hydraulic rod is fixedly connected to a push plate;
[0006] After one of the slides slides out of the slide groove, the push plate pushes the side support or top support of the next support body away from the slide toward the inclined shaft wall.
[0007] Preferably, the top guarding support is provided with a plurality of through holes, and the top guarding supports between adjacent supporting bodies are fixedly connected with round tubes.
[0008] Preferably, a slot is provided on the side of the top guard support, a guide plate is slidably connected in the slot, a sliding groove is provided on one side of the guide plate, a saw blade is slidably connected in the sliding groove, a crank-connecting rod mechanism is detachably fixedly connected to one side of the guide plate, and the crank-connecting rod mechanism is hingedly connected to the lower end of the saw blade.
[0009] Preferably, two threaded holes are provided on one side of the guide plate, and the threaded holes can be coaxial with the through hole.
[0010] Preferably, the lower end of the guide plate is fixedly connected to the ear plate, and the ear plate is fixedly connected to the top protective support.
[0011] Preferably, the circular tube is a grouting tube.
[0012] The advantages of the present invention are as follows: a fast construction device for inclined shafts in poor geological areas provided by the present invention is assembled by a top support and two side supports to form a support body, which is supported at intervals in the inclined shaft tunnel. The inclined shaft tunnel is constructed in a step-by-step excavation method, and a circle of support is provided after excavating a section. The weak areas such as the areas prone to collapse of the cave are detected in advance by geological means. At this time, the excavation outline is reduced to retain redundant soil (not prone to collapse). The dislocated top support and two side supports in the excavation hole formed by the redundant soil first slide to exceed the areas prone to collapse of the cave. At this time, the top support is The redundant soil corresponding to the two side supports is grooved and excavated to the wall of the inclined shaft. After one of the slides slides out of the slot, the push plate pushes the side support or top support of the next support body away from the slide toward the inclined shaft wall. The support body is first assembled at a position beyond the area prone to collapse of the cave, and support is constructed between the support bodies above and below the area prone to collapse of the cave. On the one hand, it is convenient to quickly complete the assembly of the support body. On the other hand, it is convenient to form reinforcement construction for the area prone to collapse of the cave between the two support bodies, thereby improving construction efficiency and solving the reinforcement problem of poor geology. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a basic structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the state where the side support is separated from the grooved guide rail;
[0015] Figure 3 It is a schematic diagram of the top support propulsion state;
[0016] Figure 4 This is a schematic diagram of the guide plate slotting state;
[0017] Figure 5 This is a schematic diagram of the connection structure between the top support and the guide plate of the present invention;
[0018] Figure 6 This is a schematic diagram of the inclined shaft excavation principle of the present invention;
[0019] Figure 7 This invention Figure 6 A partial enlarged view of point E in FIG. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0021] Example 1
[0022] like Figures 1 to 7 As shown, the present invention provides a rapid construction device for an inclined shaft in a poor geological area, comprising a top guard support 1 and two side guard supports 2. The top guard support 1 and the side guard supports 2 are fixedly connected to a side plate 3 to form a support body. A groove 60 is provided at the connection between the top guard support 1 and the side guard supports 2, so that the top guard support 1 and the side guard supports 2 can be easily transported to an assembly position after being dislocated. Guide grooves 21 are provided on both the top guard support 1 and the side guard supports 2. A grooved guide rail 22 is slidably connected in the guide groove 21. The grooved guide rail 22 is fixed to the assembled support body by bolts. When it is necessary to adapt to the advancement of the inclined shaft, During construction, the fastening bolts are loosened at intervals so that the grooved guide rail 22 slides to the next working position, which plays a role of gradually advancing guide. Two slides 23 are slidably connected in the slide groove of the grooved guide rail 22. One side of the two slides 23 is fixedly connected to the baffle 24. After the baffle 24 is removed, the side support 2 is pushed between the two slides 23. Then the baffle 24 fixes the two slides 23 as a whole. The two slides 23 can slide along the grooved guide rail 22 with the side support 2. One of the slides 23 is fixedly connected to the hydraulic rod 25, and the telescopic end of the hydraulic rod 25 is fixedly connected to the push plate 26.
[0023] After one of the slides 23 slides out of the slide groove, the push plate 26 pushes the side support 2 or top support 1 of the next support body away from the slide 23 toward the inclined well wall.
[0024] The top support 1 and two side support braces 2 of the present invention are assembled to form a support body, which is supported at intervals in the inclined shaft tunnel. The inclined shaft tunnel is constructed by a step-by-step excavation method. After excavating a section, a circle of support is provided. The weak area is detected in advance geologically, such as the easily collapsed area of the cave 30. At this time, the excavation outline is reduced to retain the redundant soil 20 (not easy to collapse). The dislocated top support 1 and two side support braces 2 in the excavation hole formed by the redundant soil 20 first slide to the area that is more than the easily collapsed area of the cave 30. At this time, the redundant soil 20 corresponding to the top support 1 and the two side support braces 2 are The groove is excavated and expanded to the inclined shaft wall 10. After sliding out of the groove through one of the slides 23, the push plate 26 pushes the side support 2 or top support 1 of the next support body away from the slide 23 toward the inclined shaft wall. The support body is first assembled at a position beyond the prone-to-collapse area of the cave 30, and support is constructed between the support bodies above and below the prone-to-collapse area of the cave 30. On the one hand, it is convenient to quickly complete the assembly of the support body. On the other hand, it is convenient to form reinforcement construction for the prone-to-collapse area of the cave 30 between the two support bodies, thereby improving construction efficiency and solving the reinforcement problem of poor geology.
[0025] Example 2
[0026] like Figures 1 to 7 As shown, the top guard brace 1 is provided with a plurality of through holes 3, and the top guard braces 1 between adjacent supporting bodies are fixedly connected with round tubes 31.
[0027] A slot 11 is provided on the side of the top guard support 1, and a guide plate 12 is slidably connected in the slot 11. A sliding groove 13 is provided on one side of the guide plate 12, and a saw blade 14 is slidably connected in the sliding groove 13. A crank-connecting rod mechanism 15 is fixedly connected to one side of the guide plate 12 by means of a detachable bolt. The crank-connecting rod mechanism 15 is hingedly connected to the lower end of the saw blade 14. The crank-connecting rod mechanism 15 enables the saw blade 14 to reciprocate in the sliding groove 13 and be removed after use, forming a groove in the redundant soil 20, and a blocking plate 33 is inserted into the groove during the later grouting to facilitate the slurry to enter the soil. Two threaded holes 16 are provided on one side of the guide plate 12, and the threaded holes 16 can be coaxial with the through hole 3.
[0028] When the top guard support 1 slides down the inclined shaft along the inner wall of the redundant soil 20, the saw blade 14 forms a groove in the redundant soil 20, which facilitates the synchronous advancement of the circular pipe 31, grouting reinforcement in the redundant soil 20 and supporting the soil in the collapse-prone area near the cave 30.
[0029] Furthermore, the lower end of the guide plate 12 is fixedly connected to the ear plate 17, and the ear plate 17 and the top guard support 1 are later fixedly connected by welding. After the guide plate 12 is inserted into the anchor rod 50 toward the inclined well wall 10, the ear plate 17 is welded and fixed to the bottom of the top guard support 1 to form a whole.
[0030] In Example 2, the top guard support 1 is in the excavated hole formed by the redundant soil 20, the upper end of the guide plate 12 contacts the inclined shaft wall 10, the guide plate 12 and the top guard support 1 are temporarily fixed with bolts, and one end of the round tube 31 is first fixedly connected to the threaded hole 16 at the upper end of the guide plate 12. As the top guard support 1 slides down along the grooved guide rail 22, the saw blade 14 on the side of the guide plate 12 opens multiple grooves on the end surface of the redundant soil 20, and the multiple round tubes 31 advance along the grooves and always support the soil in the easily collapsed area of the cave 30, thereby reducing the risk of collapse;
[0031] When the dislocated top guard support 1 and two side guard supports 2 in the excavation hole formed by the redundant soil 20 first slide to the collapse-prone area beyond the cave 30, the redundant soil 20 corresponding to the top guard support 1 and the two side guard supports 2 are grooved and excavated to the inclined shaft wall 10. After sliding out of the slide groove through one of the slide seats 23, the push plate 26 pushes the side guard support 2 or top guard support 1 of the next support body away from the corresponding slide seat 23 toward the inclined shaft wall, and the support body is first assembled at a position beyond the collapse-prone area of the cave 30.
[0032] An anchor rod 50 is inserted into the guide plate 12 to further form an anchor with the inclined shaft wall 10. The round tube 31 is first separated from the threaded hole 16 at the upper end of the guide plate 12, and the top guard 1 approaches the inclined shaft wall 10 along the guide plate 12. The round tube 31 passes through the through hole 3 and the threaded hole 16 at the lower end of the guide plate 12 and is threadedly fixed. A plurality of round tubes 31 are formed between the two support bodies for the easily collapsed area of the cave 30, forming an early support for the subsequent excavation to the inclined shaft wall 10, and both ends of the support are reinforced by the support body, with high support strength. Subsequently, the remaining redundant soil 20 is gradually excavated, and further reinforced by tying steel bars and spraying concrete.
[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A device for rapid construction of an inclined shaft in a poor geological area, comprising a top support (1) and two side supports (2), wherein the top support (1) and the side supports (2) are fixedly connected to a side plate (3) to form a support body, and characterized in that: A guide slot (21) is provided on both the top guard support (1) and the side guard support (2), a grooved guide rail (22) is slidably connected in the guide slot (21), two slides (23) are slidably connected in the slide groove of the grooved guide rail (22), one side of the two slides (23) is fixedly connected to a baffle (24), one of the slides (23) is fixedly connected to a hydraulic rod (25), and the telescopic end of the hydraulic rod (25) is fixedly connected to a push plate (26); After one of the slides (23) slides out of the slide groove, the push plate (26) pushes the side support (2) or top support (1) of the next support body away from the slide (23) toward the inclined well wall.
2. The rapid construction device for inclined shafts in poor geological areas according to claim 1 is characterized by: The top protection support (1) is provided with a plurality of through holes (3), and the top protection supports (1) between adjacent support bodies are fixedly connected with circular tubes (31).
3. The rapid construction device for inclined shafts in poor geological areas according to claim 2, characterized in that: A slot (11) is provided on the side of the top support (1), a guide plate (12) is slidably connected in the slot (11), a sliding groove (13) is provided on one side of the guide plate (12), a saw blade (14) is slidably connected in the sliding groove (13), a crank-connecting rod mechanism (15) is detachably fixedly connected to one side of the guide plate (12), and the crank-connecting rod mechanism (15) is hingedly connected to the lower end of the saw blade (14).
4. The rapid construction device for inclined shafts in poor geological areas according to claim 3 is characterized by: Two threaded holes (16) are provided on one side of the guide plate (12), and the threaded holes (16) can be coaxial with the through hole (3).
5. The rapid construction device for inclined shafts in poor geological areas according to claim 3 is characterized by: The lower end of the guide plate (12) is fixedly connected to the ear plate (17), and the ear plate (17) is fixedly connected to the top support (1).
6. The rapid construction device for inclined shafts in poor geological areas according to claim 2, characterized in that: The circular tube (31) is a grouting tube.