Adaptive slurry retaining plate and construction method

Abstract

The embodiment of the present invention discloses an adaptive slurry retaining plate and a construction method, which relates to the technical field of coal mine filling mining, and can solve the problem of blocking the branch tunnels in existing coal mine filling mining. The slurry retaining plate includes a main template and an auxiliary template; the main template includes a support template and a sealing template; the support template and the sealing template are movably connected and can be telescopically moved in the transverse direction; the auxiliary template includes a middle template and a side template; the middle template and the side template are movably connected and can be telescopically moved in the transverse direction; the auxiliary template is movably arranged on the side of the support template and can be telescopically moved in the longitudinal direction on the support template. The solution provided by the present invention is suitable for coal mine filling mining, and can effectively achieve the blocking of branch tunnels in coal mine filling mining; the structures of each part are simple and easy to install and adjust.

Description

Technical Field

[0001] The present invention relates to the technical field of adaptive slurry retaining plates, and in particular to an adaptive slurry retaining plate and a construction method thereof. Background Art

[0002] Coal mine backfill mining technology can solve the problem of "three-down coal mining", protect the surface ecology, and become an important way to solve resource development and environmental protection. The development advantages of this technology in the coal mining industry are gradually becoming prominent.

[0003] In tunnel-type cemented backfill mining, branch tunnel sealing is a crucial step. Poor sealing results in retaining wall collapse, slurry leakage, and slurry burst. Traditional methods often use wooden retaining walls and steel plate retaining walls, which are complex to construct and seriously affect construction efficiency. These methods present the following problems:

[0004] First, the boundary of the branch tunnel is irregular, making it difficult to seal. After the branch tunnel is mined, its boundary is in an irregular shape, and the commonly used templates are less effective in sealing the corners, causing slurry to overflow from the corners.

[0005] Second, the cross-section of the branch tunnel changes, and the template has poor commonality. Affected by the inclination of the coal seam, the cross-section of the branch tunnel changes from time to time. When the cross-section decreases, the template needs to be replaced; when the cross-section increases, the supplementary template has poor adaptability with the original template.

[0006] In summary, the existing technology results in unsatisfactory blocking effects for branch tunnels and seriously affects construction efficiency. Summary of the Invention

[0007] In view of this, an embodiment of the present invention provides an adaptive slurry retaining plate and a construction method, which can solve the problem of blocking branch tunnels in existing coal mine backfill mining.

[0008] In a first aspect, an embodiment of the present invention provides an adaptive slurry retaining plate for coal mine backfill mining, comprising a main template and an auxiliary template;

[0009] The main template includes a supporting template and a sealing template; the supporting template and the sealing template are movably connected and can be telescopically moved in the lateral direction; the supporting template and the sealing template always maintain an overlapping surface during the telescopic movement in the lateral direction;

[0010] The auxiliary formwork includes a middle formwork and side formwork; the middle formwork and the side formwork are movably connected and can be telescopically moved in the lateral direction; the middle formwork and the side formwork always maintain an overlapping surface during the telescopic movement in the lateral direction;

[0011] The auxiliary formwork is movably arranged on the side of the supporting formwork and can be telescopically moved on the supporting formwork in the longitudinal direction; the auxiliary formwork and the main formwork always maintain an overlapping surface during the longitudinal telescopic movement;

[0012] The two sealing templates are respectively arranged on the side surfaces of the supporting template, and the two sealing templates can move laterally on the supporting template; rubber pads are provided on the outer sides of the sealing template; rubber pads are provided on the outer sides and upper sides of the side template.

[0013] Furthermore, the two side templates are respectively arranged on the side surfaces of the middle template, and the two side templates can be telescopically moved in the lateral direction on the middle template.

[0014] According to a specific implementation of an embodiment of the present invention, the supporting template and the sealing template are respectively rectangular structures, the height of the supporting template is consistent with the height of the sealing template; the width of the sealing template is 100 mm larger than 1 / 3 of the width of the supporting template.

[0015] According to a specific implementation of an embodiment of the present invention, the middle template and the side template are respectively rectangular structures, the height of the side template is consistent with the height of the middle template, and the width of the side template is 100 mm larger than 1 / 3 of the width of the middle template.

[0016] According to a specific implementation of an embodiment of the present invention, the width of the middle template is consistent with the width of the supporting template; the height of the middle template is 100 mm greater than 1 / 3 of the height of the supporting template.

[0017] According to a specific implementation of an embodiment of the present invention, the overall width of the middle template and the side template after expansion and contraction can be consistent with the overall width of the main template.

[0018] According to a specific implementation method of an embodiment of the present invention, the side surface between the supporting template and the sealing template is a connecting surface, and the connecting surface is an overlapping surface. A first telescopic driving mechanism is provided laterally on the connecting surface between the supporting template and the sealing template. One end of the first telescopic driving mechanism is provided on the supporting template, and the other end of the first telescopic driving mechanism is provided on the sealing template. The first telescopic driving mechanism can drive the telescopic movement between the supporting template and the sealing template.

[0019] According to a specific implementation method of an embodiment of the present invention, the side surface between the middle template and the side template is a connecting surface, and the connecting surface is an overlapping surface. A second telescopic drive mechanism is provided in the horizontal direction on the connecting surface between the middle template and the side template. One end of the second telescopic drive mechanism is provided on the middle template, and the other end of the second telescopic drive mechanism is provided on the side template. The second telescopic drive mechanism can drive the telescopic movement between the middle template and the side template.

[0020] According to a specific implementation method of an embodiment of the present invention, the side surface between the supporting template and the intermediate template is a connecting surface, and the connecting surface is an overlapping surface. A third telescopic drive mechanism is provided in the horizontal direction on the connecting surface between the supporting template and the intermediate template. One end of the third telescopic drive mechanism is provided on the supporting template, and the other end of the third telescopic drive mechanism is provided on the intermediate template. The third telescopic drive mechanism can drive the telescopic movement between the supporting template and the intermediate template.

[0021] According to a specific implementation method of an embodiment of the present invention, the first telescopic drive mechanism, the second telescopic drive mechanism and the third telescopic drive mechanism are respectively servo hydraulic rods, and the servo hydraulic rods include a cylinder, a piston and a servo controller. The piston can be telescopically arranged in the cylinder, and a movable base is provided at the outer end of the piston. The cylinder is away from the telescopic end of the piston and is provided with a fixed base; the servo controller is arranged on the fixed base and is connected to the cylinder through an oil pipe.

[0022] According to a specific implementation method of an embodiment of the present invention, a guide rail is provided in the horizontal direction on the back of the supporting template, and a groove is provided in the horizontal direction on the front of the sealing template. The supporting template is slidably connected to the horizontal groove of the sealing template through its horizontal guide rail, thereby realizing horizontal telescopic movement.

[0023] According to a specific implementation method of an embodiment of the present invention, a groove is provided in the transverse direction on the front side of the middle template, and a guide rail is provided in the transverse direction on the back side of the side template. The middle template is slidingly connected to the guide rail of the side template through its transverse groove, thereby realizing transverse telescopic movement.

[0024] According to a specific implementation method of an embodiment of the present invention, a groove is provided on the front side of the supporting template along the longitudinal direction, and a guide rail is provided on the back side of the middle template along the longitudinal direction. The supporting template is slidably arranged in the longitudinal guide rail of the middle template through its longitudinal groove, thereby realizing longitudinal telescopic movement.

[0025] According to a specific implementation method of an embodiment of the present invention, the longitudinal groove on the front side of the supporting template is located at 1 / 3 of the height of the top of the front side of the supporting template, and the two longitudinal grooves on the front side of the supporting template are spaced 1 / 3 of the width of the board in the horizontal direction, and the thickness of the groove is 1 / 3 of the thickness of the supporting template.

[0026] According to a specific implementation method of an embodiment of the present invention, two guide rails are provided in the horizontal direction on the left and right sides of the back of the supporting template, and the guide rails in the horizontal direction on the left and right sides of the back of the supporting template are respectively located at 1 / 3 of the board width on the left and right sides of the back of the supporting template. The two guide rails in the horizontal direction on the left or right side of the back of the supporting template are spaced 1 / 3 of the board width in the longitudinal direction, and the width of the guide rails in the horizontal direction is consistent with the width of the groove in the horizontal direction.

[0027] According to a specific implementation of an embodiment of the present invention, two grooves are respectively provided on the left and right sides of the front of the middle template along the horizontal direction, and the grooves on the left and right sides of the back of the middle template along the horizontal direction are respectively located at 1 / 3 of the width of the plate on the left and right sides of the front.

[0028] According to a specific implementation method of an embodiment of the present invention, a guide rail is provided on the back side of the intermediate template along the longitudinal direction and is located at 1 / 3 of the height of the top 1 / 3 of the board on the back side, and the two longitudinal guide rails on the back side of the intermediate template are spaced 1 / 3 of the board width in the transverse direction, and the thickness of the guide rail is 1 / 3 of the board thickness of the intermediate template.

[0029] According to a specific implementation of the embodiment of the present invention, the width of the groove on the front side of the supporting template along the longitudinal direction is consistent with the width of the guide rail on the front side of the middle template along the longitudinal direction.

[0030] In a second aspect, an embodiment of the present invention provides a construction method of an adaptive slurry retaining plate, using the above-mentioned adaptive slurry retaining plate; the construction method includes the following steps:

[0031] S1: transport the prefabricated adaptive slurry retaining plate to the entrance of the filling branch tunnel so that it is located inside the branch tunnel;

[0032] S2: The supporting template and the sealing template are driven to expand laterally by the first telescopic driving mechanism, so that the rubber pads on the outer sides of the sealing template are close to the side tunnel walls;

[0033] S3: The main formwork and the auxiliary formwork are driven to expand longitudinally by the third telescopic drive mechanism, so that the rubber pad on the top edge of the auxiliary formwork is close to the top plate of the branch tunnel;

[0034] S4: The middle formwork and the side formwork are driven to open laterally by the second telescopic drive mechanism, so that the rubber pads on the outer sides of the side formwork are close to the side tunnel wall, completing the installation of the adaptive slurry retaining plate;

[0035] S5: After the filling body of the branch tunnel reaches the predetermined strength, retract the first telescopic drive mechanism to retract and reset the support formwork and the sealing formwork; retract the second telescopic drive mechanism to retract and reset the middle formwork and the side formwork; retract the third telescopic drive mechanism to retract and reset the main formwork and the auxiliary formwork; and complete the recovery of the adaptive slurry baffle.

[0036] The adaptive slurry retaining plate provided by the present invention adopts two groups of main and auxiliary templates. Each group of templates is divided into three parts, all of which are connected by guide rails. Each part is driven by a hydraulic rod to realize the extension and contraction of the template, thereby realizing the blocking of the branch tunnel in the coal mine filling mining; the adaptive slurry retaining plate provided by the present invention has a simple structure of each part and is easy to install and adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is an overall schematic diagram of an adaptive slurry retaining plate of the present invention;

[0039] Figure 2 This is a schematic diagram of the main template of the present invention;

[0040] Figure 3 This is a schematic diagram of the auxiliary template of the present invention;

[0041] Figure 4 This is a front schematic diagram of the support formwork of the present invention;

[0042] Figure 5 This is a schematic diagram of the back side of the support template of the present invention;

[0043] Figure 6 This is a front view of the sealing template of the present invention;

[0044] Figure 7 This is a front view of the intermediate template of the present invention;

[0045] Figure 8 This is a schematic diagram of the back side of the intermediate template of the present invention;

[0046] Figure 9 This is a front view of the side template of the present invention;

[0047] Figure 10 Schematic diagram of the servo hydraulic rod of the present invention.

[0048] In the figure: 1. Main template; 2. Auxiliary template; 3. Servo hydraulic rod; 4. Rubber pad; 5. Support template; 6. Sealing template; 7. Middle template; 8. Side template; 9. Cylinder; 10. Piston; 11. Oil pipe; 12. Movable base; 13. Fixed base; 14. Servo controller; 15. Groove; 16. Guide rail. DETAILED DESCRIPTION

[0049] The following describes embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0050] like Figure 1As shown, this embodiment provides an adaptive slurry retaining plate for coal mine filling mining to achieve filling slurry blocking; the adaptive slurry retaining plate includes a main template 1, an auxiliary template 2, a rubber pad 4 and a telescopic drive mechanism, the main template 1 and the auxiliary template 2 are arranged along the same plane, and the main template 1 itself can achieve lateral telescopic extension and contraction through the telescopic drive mechanism, and the main template 1 and the auxiliary template 2 can achieve longitudinal telescopic extension and contraction through the telescopic drive mechanism, and the auxiliary template 2 itself can achieve lateral telescopic extension and contraction through the telescopic drive mechanism, so that it can adapt to the filling and blocking of the branch tunnel; in the present application scheme, the horizontal direction of the main template 1 is used as a reference in the horizontal direction, and the vertical direction of the main template 1 is used as a reference in the longitudinal direction.

[0051] The adaptive slurry baffle provided by the embodiment of the present invention has a main formwork 1 as the main supporting structure, which provides an installation basis for each component on the one hand, and is installed at the bottom of the branch tunnel with both sides close to the tunnel wall to achieve effective support; the auxiliary formwork 2 has an adjusting function, and the auxiliary formwork 2 mainly seals the upper area of ​​the branch tunnel to make up for the area not sealed by the main formwork; the rubber pad 4 has a sealing function, and the rubber pad 4 is deformable. Under the action of pressure, it can seal the irregular area of ​​the branch tunnel to achieve edge sealing; the servo hydraulic rod 3 has a pressure regulating function. By applying pressure through the servo hydraulic rod, it plays the role of raising and lowering the auxiliary formwork on the one hand, and can be used to extrude the rubber pad to make it fit the cross-section of the branch tunnel on the other hand.

[0052] Figure 1 The present invention provides an adaptive slurry retaining plate for coal mine filling mining, comprising a main template 1 and an auxiliary template 2; wherein,

[0053] The main formwork 1 includes a supporting formwork 5 and a sealing formwork 6; the supporting formwork 5 and the sealing formwork 6 are movably connected and can be telescopically moved in the transverse direction, thereby laterally expanding the main formwork 1 to achieve sealing; specifically, the supporting formwork 5 and the sealing formwork 6 always maintain an overlapping surface during the transverse telescopic movement, thereby ensuring the sealing of the main formwork 1;

[0054] The auxiliary formwork 2 includes a center formwork 7 and side formwork 8. The center formwork 7 and the side formwork 8 are movably connected and can be telescopically moved in the transverse direction, thereby laterally expanding the auxiliary formwork 2 to achieve sealing. Specifically, the center formwork 7 and the side formwork 8 always maintain an overlapping surface during the transverse telescopic movement, thereby ensuring the sealing of the auxiliary formwork 2.

[0055] The auxiliary formwork 2 is movably arranged on the side of the supporting formwork 5 and can be telescopically moved longitudinally on the supporting formwork 5, thereby longitudinally expanding the main formwork 1 and the auxiliary formwork 2 to achieve sealing. Specifically, the rubber pad 4 on the top edge of the auxiliary formwork 2 is close to the roof of the branch tunnel to achieve sealing. Furthermore, the auxiliary formwork 2 and the main formwork 1 always maintain an overlapping surface during the longitudinal telescopic movement, thereby ensuring overall sealing.

[0056] The above-mentioned adaptive slurry retaining plate is adopted, and two sets of main and auxiliary templates are adopted. Each set of templates is divided into three parts, which are all connected by guide rails, and the extension and contraction of the templates are achieved by hydraulic rods. The structure of each part is simple and easy to install.

[0057] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the two sealing templates 6 are respectively arranged on the side surfaces of the supporting template 5, and the two sealing templates 6 can be telescopically moved on the supporting template 5 in the transverse direction, thereby realizing the expansion of the left and right sides of the supporting template 5.

[0058] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the two side templates 8 are respectively arranged on the side surfaces of the middle template 7, and the two side templates 8 can be telescopically moved on the middle template 7 in the transverse direction, thereby realizing the expansion of the left and right sides of the middle template 7.

[0059] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, rubber pads 4 are provided on the outer sides of the sealing template 6, so that the sealing template 6 can be close to the side tunnel walls after being expanded; further, rubber pads 4 are provided on the outer sides and upper sides of the side template 8, so that the side template 8 can be close to the side tunnel walls after being expanded.

[0060] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the support template 5 and the sealing template 6 are respectively rectangular structures, and the height of the support template 5 is consistent with the height of the sealing template 6, and the width of the sealing template 6 is 100 mm larger than 1 / 3 of the width of the support template 5; this size is based on actual research and design; in this embodiment, the height is referenced in the vertical direction as a reference, and the width is referenced in the horizontal direction as a reference.

[0061] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the middle template 7 and the side template 8 are respectively rectangular structures, and the height of the side template 8 is consistent with the height of the middle template 7. The width of the side template 8 is 100 mm larger than 1 / 3 of the width of the middle template 7. This size is designed based on actual research.

[0062] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the width of the middle formwork 7 is consistent with the width of the supporting formwork 5, and the height of the middle formwork 7 is 100 mm larger than 1 / 3 of the height of the supporting formwork 5. This size is designed based on actual research.

[0063] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the overall width of the middle template 7 and the side template 8 after expansion and contraction can be consistent with the overall width of the main template 1.

[0064] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the side surface between the supporting template 5 and the sealing template 6 is a connecting surface, and the connecting surface is always an overlapping surface; specifically, a first telescopic driving mechanism is provided laterally on the connecting surface between the supporting template 5 and the sealing template 6, one end of the first telescopic driving mechanism is provided on the supporting template 5, and the other end of the first telescopic driving mechanism is provided on the sealing template 6, and the first telescopic driving mechanism can drive the telescopic movement between the supporting template 5 and the sealing template 6.

[0065] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the side surface between the middle formwork 7 and the side formwork 8 is a connecting surface, and the connecting surface is always an overlapping surface; specifically, a second telescopic drive mechanism is provided in the horizontal direction on the connecting surface between the middle formwork 7 and the side formwork 8, one end of the second telescopic drive mechanism is provided on the middle formwork 7, and the other end of the second telescopic drive mechanism is provided on the side formwork 8, and the second telescopic drive mechanism can drive the telescopic movement between the middle formwork 7 and the side formwork 8.

[0066] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the side surface between the supporting formwork 5 and the intermediate formwork 7 is a connecting surface, and the connecting surface is always an overlapping surface. A third telescopic drive mechanism is provided laterally on the connecting surface between the supporting formwork 5 and the intermediate formwork 7. One end of the third telescopic drive mechanism is provided on the supporting formwork 5, and the other end of the third telescopic drive mechanism is provided on the intermediate formwork 7. The third telescopic drive mechanism can drive the telescopic movement between the supporting formwork 5 and the intermediate formwork 7.

[0067] Preferably, in combination with the above scheme, Figures 1 to 10As shown, the first telescopic drive mechanism, the second telescopic drive mechanism and the third telescopic drive mechanism are respectively a servo hydraulic rod 3; specifically, the servo hydraulic rod 3 includes a cylinder 9, a piston 10 and a servo controller 14; wherein, the piston 10 can be telescopically arranged in the cylinder 9, and a movable base 12 is provided at the outer end of the piston 10, and a fixed base 13 is provided at the telescopic end of the cylinder 9 away from the piston 10; further, the servo controller 14 is arranged on the fixed base 13 and is connected to the cylinder 9 through an oil pipe 11; specifically, the inner diameter of the cylinder 9 is the same as the outer diameter of the piston 10; a circular groove with the same outer diameter as the piston 10 is provided at the top of the movable base 12; a circular groove with the same outer diameter as the cylinder 9 is provided at the top of the fixed base 13; the piston 10 is inserted into the cylinder 9, and the movable base 12 and the fixed base 13 are respectively welded to the ends of the piston 10 and the cylinder 9, and the servo controller 14 is connected to the cylinder 9 through the oil pipe 11, thereby forming a servo hydraulic rod 3; in the first telescopic drive mechanism In the structure, the servo hydraulic rod 3 is welded on the main template 1 at an interval of 1 / 3 of the plate height of the supporting template 5, its movable base 12 is welded to the end of the sealing template 6, and the fixed base 13 is welded to 1 / 3 of the plate width of the supporting template 5; in the second telescopic drive mechanism, the servo hydraulic rod 3 is welded on the auxiliary template 2 at an interval of 1 / 2 of the plate height of the intermediate template 7, its movable base 12 is welded to the end of the side template 8, and the fixed base 13 is welded to 1 / 3 of the plate width of the intermediate template 7, and the guide rail 16 of the intermediate template 7 is inserted into the longitudinal groove on the front of the supporting template 5; in the third telescopic drive mechanism, the servo hydraulic rod 3 is welded on the main template 1 and the auxiliary template 2 at an interval of 1 / 3 of the plate width of the supporting template 5, its movable base 12 is welded to 1 / 2 of the plate height of the supporting template 5, and the movable base 12 is welded to 1 / 2 of the plate height of the intermediate template 7; further, the movable base 12 of the servo hydraulic rod 3 adopts a square steel plate with a width of 100 mm; the fixed base 13 adopts a rectangular steel plate with a width of 200 mm.

[0068] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, a guide rail 16 is provided on the back side of the supporting template 5 in the transverse direction, and a groove 15 is provided on the front side of the sealing template 6 in the transverse direction. The supporting template 5 is slidably connected with the transverse groove 15 of the sealing template 6 through its transverse guide rail 16, thereby realizing transverse telescopic movement; specifically, a rectangular steel plate is provided on the back side of the supporting template 5, and the guide rail 16 is arranged on the rectangular steel plate.

[0069] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, a groove 15 is provided on the front side of the middle template 7 along the horizontal direction, and a guide rail 16 is provided on the back side of the side template 8 along the horizontal direction. The middle template 7 is slidably connected to the guide rail 16 of the side template 8 through its horizontal groove 15, thereby realizing horizontal telescopic movement.

[0070] Preferably, in combination with the above scheme, Figures 1 to 10As shown, the front of the supporting template 5 is provided with a groove 15 along the longitudinal direction, and the back of the intermediate template 7 is provided with a guide rail 16 along the longitudinal direction. The supporting template 5 is slidably set in the longitudinal guide rail 16 of the intermediate template 7 through its longitudinal groove 15, thereby realizing longitudinal telescopic movement.

[0071] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the longitudinal groove 15 on the front of the supporting formwork 5 is located at 1 / 3 of the board height at the top of the front, and the two longitudinal grooves 15 on the front of the supporting formwork 5 are spaced 1 / 3 of the board width in the horizontal direction, and the thickness of the groove 15 is 1 / 3 of the board thickness of the supporting formwork 5.

[0072] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, two guide rails 16 are provided along the horizontal direction on the left and right sides of the back of the supporting template 5, and the guide rails 16 along the horizontal direction on the left and right sides of the back of the supporting template 5 are respectively located at 1 / 3 of the board width on the left and right sides of the back of the supporting template 5. The two guide rails 16 along the horizontal direction on the left or right side of the back of the supporting template 5 are spaced 1 / 3 of the board width in the longitudinal direction, and the width of the guide rails 16 along the horizontal direction is consistent with the width of the groove 15 along the horizontal direction.

[0073] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, two grooves are provided on the left and right sides of the front side of the middle template along the horizontal direction, and the grooves on the left and right sides of the back side of the middle template along the horizontal direction are located at 1 / 3 of the board width on the left and right sides of the front side.

[0074] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, a guide rail is provided along the longitudinal direction on the back of the middle template and is located at 1 / 3 of the height of the top 1 / 3 of the board on the back, and the two longitudinal guide rails on the back of the middle template are spaced 1 / 3 of the board width in the horizontal direction, and the thickness of the guide rail is 1 / 3 of the board thickness of the middle template.

[0075] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the width of the groove 15 on the front side of the supporting template 5 along the longitudinal direction is consistent with the width of the guide rail 16 on the front side of the intermediate template 7 along the longitudinal direction.

[0076] Accordingly, combined with the above scheme, if Figures 1 to 10 As shown, the present invention also provides a construction method of an adaptive slurry retaining plate, wherein the construction method adopts the adaptive slurry retaining plate described above; specifically, the construction method includes the following steps:

[0077] S1: transport the prefabricated adaptive slurry retaining plate to the entrance of the filling branch tunnel so that it is located inside the branch tunnel;

[0078] S2: The supporting template 5 and the sealing template 6 are driven to expand laterally by the first telescopic driving mechanism, so that the rubber pads 4 on the outer side of the sealing template 6 are close to the side tunnel walls, thereby achieving sealing and blocking of the side tunnel walls;

[0079] S3: The main template 1 and the auxiliary template 2 are driven to expand longitudinally by the third telescopic drive mechanism, so that the rubber pad 4 on the top edge of the auxiliary template 2 is close to the branch tunnel roof, thereby achieving sealing and plugging of the branch tunnel roof;

[0080] S4: The middle template 7 and the side template 8 are driven to expand laterally by the second telescopic drive mechanism, so that the rubber pad 4 on the outer side of the side template 8 is close to the branch tunnel wall, thereby achieving sealing of the branch tunnel wall; the installation of the adaptive slurry retaining plate is completed;

[0081] S5: After the filling body of the branch tunnel reaches the predetermined strength, retract each telescopic drive mechanism, specifically including: retracting the first telescopic drive mechanism to retract and reset the support formwork 5 and the sealing formwork 6; retracting the second telescopic drive mechanism to retract and reset the middle formwork 7 and the side formwork 8; retracting the third telescopic drive mechanism to retract and reset the main formwork 1 and the auxiliary formwork 2; completing the recovery of the adaptive slurry baffle.

[0082] Preferably, in combination with the above scheme, Figures 1 to 10 As shown, the first telescopic drive mechanism, the second telescopic drive mechanism and the third telescopic drive mechanism refer to the above-mentioned telescopic drive mechanism, and their specific installation positions are consistent with the above-mentioned solution.

[0083] The solution provided by the present invention has the following technical effects compared with the prior art:

[0084] First, the solution provided by the present invention is simple to assemble, using two sets of templates, main and auxiliary. Each set of templates is divided into three parts, all connected by guide rails. The templates are extended and retracted by hydraulic rods, which is convenient to operate. Each part has a simple structure and is easy to install.

[0085] Second, the solution provided by the present invention has good sealing performance. The rubber pad around the adaptive slurry baffle has good compressibility and can adapt to the irregular area around the branch tunnel. At the same time, the servo hydraulic rod is used to load the template to achieve sealing between the rubber pad and the branch tunnel section.

[0086] Third, the solution provided by the present invention has strong applicability. It adjusts each template component through the servo hydraulic rod to adapt to different cross-sectional size requirements, and satisfies the sealing of irregular areas by squeezing rubber pads, thereby realizing multi-size and irregular slurry retaining requirements.

[0087] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0088] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0089] In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0090] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An adaptive slurry retaining plate for coal mine filling mining; characterized in that: Including main template and auxiliary template; The main template includes a supporting template and a sealing template; the supporting template and the sealing template are movably connected and can be telescopically moved in the lateral direction; the supporting template and the sealing template always maintain an overlapping surface during the telescopic movement in the lateral direction; The auxiliary template includes a middle template and a side template; the middle template and the side template are movably connected and can be telescopically moved in the lateral direction; the middle template and the side template always maintain an overlapping surface during the telescopic movement in the lateral direction; The auxiliary formwork is movably arranged on the side of the supporting formwork and can be telescopically moved on the supporting formwork in the longitudinal direction; the auxiliary formwork and the main formwork always maintain an overlapping surface during the process of telescopic movement in the longitudinal direction; The two sealing templates are respectively arranged on the side surfaces of the supporting template, and the two sealing templates can be telescopically moved in the horizontal direction on the supporting template; rubber pads are provided on the outer sides of the sealing templates; rubber pads are provided on the outer sides and upper sides of the side templates; The two side templates are respectively arranged on the side surfaces of the middle template, and the two side templates can be telescopically moved on the middle template in the transverse direction; The side surface between the supporting template and the sealing template is a connecting surface, and the connecting surface is an overlapping surface. A first telescopic driving mechanism is provided in the transverse direction on the connecting surface between the supporting template and the sealing template. One end of the first telescopic driving mechanism is provided on the supporting template, and the other end of the first telescopic driving mechanism is provided on the sealing template. The first telescopic driving mechanism can drive the supporting template and the sealing template to move telescopically. The side surface between the middle formwork and the side formwork is a connecting surface, and the connecting surface is an overlapping surface. A second telescopic drive mechanism is provided in the transverse direction on the connecting surface between the middle formwork and the side formwork, one end of the second telescopic drive mechanism is provided on the middle formwork, and the other end of the second telescopic drive mechanism is provided on the side formwork, and the second telescopic drive mechanism can drive the telescopic movement between the middle formwork and the side formwork; The side surface between the supporting formwork and the intermediate formwork is a connecting surface, and the connecting surface is an overlapping surface. A third telescopic drive mechanism is provided in the horizontal direction on the connecting surface between the supporting formwork and the intermediate formwork. One end of the third telescopic drive mechanism is provided on the supporting formwork, and the other end of the third telescopic drive mechanism is provided on the intermediate formwork. The third telescopic drive mechanism can drive the telescopic movement between the supporting formwork and the intermediate formwork.

2. The adaptive slurry guard according to claim 1, characterized in that: The supporting template and the sealing template are respectively rectangular structures, the height of the supporting template is consistent with the height of the sealing template; the width of the sealing template is 100 mm larger than 1 / 3 of the width of the supporting template; The middle template and the side template are respectively rectangular structures, the height of the side template is consistent with the height of the middle template, and the width of the side template is 100 mm larger than 1 / 3 of the width of the middle template; The width of the intermediate template is consistent with the width of the supporting template; the height of the intermediate template is 100 mm greater than 1 / 3 of the height of the supporting template; The overall width of the middle template and the side template after expansion and contraction can be consistent with the overall width of the main template.

3. The adaptive slurry guard according to claim 1, characterized in that: The first telescopic drive mechanism, the second telescopic drive mechanism and the third telescopic drive mechanism are respectively servo hydraulic rods, and the servo hydraulic rods include a cylinder, a piston and a servo controller. The piston can be telescopically arranged in the cylinder, and a movable base is provided at the outer end of the piston. The cylinder is provided with a fixed base at the end away from the telescopic end of the piston; the servo controller is arranged on the fixed base and is connected to the cylinder through an oil pipe.

4. The adaptive slurry guard according to claim 1, characterized in that: The back of the supporting template is provided with a guide rail in the transverse direction, and the front of the sealing template is provided with a groove in the transverse direction. The supporting template is slidably connected with the transverse groove of the sealing template through the transverse guide rail, thereby realizing transverse telescopic movement; The front side of the middle template is provided with a groove in the transverse direction, and the back side of the side template is provided with a guide rail in the transverse direction. The middle template is slidably connected with the guide rail of the side template through the transverse groove, thereby realizing transverse telescopic movement; The front side of the supporting template is provided with a groove in the longitudinal direction, and the back side of the intermediate template is provided with a guide rail in the longitudinal direction. The supporting template is slidably arranged in the longitudinal guide rail of the intermediate template through its longitudinal groove, thereby realizing longitudinal telescopic movement.

5. The adaptive slurry guard according to claim 4, characterized in that: The longitudinal groove on the front side of the support formwork is located at 1 / 3 of the height of the top of the front side of the support formwork, and the two longitudinal grooves on the front side of the support formwork are spaced 1 / 3 of the width of the board in the horizontal direction, and the thickness of the groove is 1 / 3 of the thickness of the board of the support formwork; Two guide rails are respectively provided in the transverse direction on the left and right sides of the back of the supporting template. The guide rails in the transverse direction on the left and right sides of the back of the supporting template are respectively located at 1 / 3 of the width of the board on the left and right sides of the back of the supporting template. The two guide rails in the transverse direction on the left or right side of the back of the supporting template are spaced 1 / 3 of the width of the board in the longitudinal direction, and the width of the guide rail in the transverse direction is consistent with the width of the groove in the transverse direction. The left and right sides of the front of the middle template are respectively provided with two grooves in the transverse direction, and the left and right sides of the back of the middle template are respectively provided with grooves in the transverse direction at 1 / 3 of the width of the left and right sides of the front; The back of the middle template is provided with a guide rail in the longitudinal direction and located at 1 / 3 of the height of the top of the back of the middle template, and the two guide rails in the longitudinal direction on the back of the middle template are spaced 1 / 3 of the width of the board in the transverse direction, and the thickness of the guide rail is 1 / 3 of the thickness of the middle template; The width of the groove along the longitudinal direction on the front side of the supporting template is consistent with the width of the guide rail along the longitudinal direction on the back side of the intermediate template.

6. A construction method of an adaptive slurry retaining plate, characterized in that: The adaptive slurry retaining plate according to any one of claims 1 to 5 is used; the construction method includes the following steps: S1: transport the prefabricated adaptive slurry retaining plate to the entrance of the filling branch tunnel so that it is located inside the branch tunnel; S2: driving the supporting template and the sealing template to be laterally expanded by the first telescopic driving mechanism, so that the rubber pads on the outer sides of the sealing template are closely attached to the side walls of the branch tunnels; S3: The main formwork and the auxiliary formwork are driven to expand longitudinally by the third telescopic drive mechanism, so that the rubber pad on the top edge of the auxiliary formwork is close to the top plate of the branch tunnel; S4: The middle formwork and the side formwork are driven to open laterally by the second telescopic drive mechanism, so that the rubber pads on the outer sides of the side formwork are close to the side tunnel wall, completing the installation of the adaptive slurry retaining plate; S5: After the filling body of the branch tunnel reaches the predetermined strength, retract the first telescopic drive mechanism to retract and reset the support formwork and the sealing formwork; retract the second telescopic drive mechanism to retract and reset the middle formwork and the side formwork; retract the third telescopic drive mechanism to retract and reset the main formwork and the auxiliary formwork; and complete the recovery of the adaptive slurry baffle.

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