Supporting mechanism for gypsum salt water engineering tunnel

Abstract

The utility model discloses a paste salt water tunnel supporting mechanism which comprises a supporting shell, two sliding holes are formed in the inner wall of the bottom of the supporting shell, sliding rods are connected into the two sliding holes in a sliding mode, a connecting plate is welded to the top ends of the two sliding rods, clamping grooves are formed in the two sides of the connecting plate, and the clamping grooves are connected with the supporting shell. Two clamping blocks are welded to the inner wall of the bottom of the supporting shell, and positioning and inserting mechanisms capable of being connected with each other are arranged at the two ends of the supporting shell. The prefabricated supporting shell can be adopted, it is not needed to worry that concrete is coagulated and cannot be used, and the utilization rate of the concrete is increased; the two supporting shells are rapidly connected, the connecting quality and efficiency of the supporting shells are improved, and the sealing performance between the two supporting shells can be effectively improved through the arrangement of the first inserting frame and the second inserting groove.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic tunnels, in particular to a supporting mechanism for a gypsum-salt hydraulic tunnel. Background Art

[0002] Hydraulic tunnel is another name for hydraulic tunnel, which is mainly used for water flow guidance in hydropower generation. Usually, hydraulic tunnel only has the tunnel body.

[0003] For example, announcement number CN217735513U discloses a support mechanism for excavating a small-section hydraulic tunnel, which can be easily unfolded and folded, thereby improving the efficiency of the installation of the entire support mechanism. However, when the hydraulic tunnel is small, the cast-in-place concrete cannot be sprayed in time, and the concrete will solidify, making the concrete unusable. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a supporting mechanism for a cement-salt water tunnel.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A support mechanism for a jelly-salt water tunnel comprises a support shell, wherein the bottom inner wall of the support shell is provided with two sliding holes, sliding rods are slidably connected in the two sliding holes, connecting plates are welded to the top ends of the two sliding rods, and slots are provided on both sides of the connecting plates, and two clamping blocks are welded to the bottom inner wall of the support shell, and both ends of the support shell are provided with mutually connectable positioning plug-in mechanisms.

[0007] As a further solution of the utility model, the positioning and plug-in mechanism includes a first slot and a second bracket, the first slot is opened on one side of the support shell, the second bracket is arranged on the other side of the support shell, and the second bracket can be inserted into the first slot on the adjacent support shell.

[0008] As a further solution of the utility model, a first inserting rack is provided on one side of the first inserting slot, a second inserting rack is provided on one side of the second inserting rack, and the first inserting rack can be inserted into the second inserting slot on the adjacent second inserting rack.

[0009] As a further solution of the utility model, the water-facing surface of the connecting plate is a guide surface.

[0010] As a further solution of the utility model, a compensation block is welded on one side of the connecting plate.

[0011] As a further solution of the utility model, the support shell includes a protective layer, an isolation layer and a base layer.

[0012] As a further solution of the utility model, the base layer is a reinforced concrete casting layer structure.

[0013] As a further solution of the present invention, the isolation layer is a stainless steel plate structure.

[0014] As a further solution of the utility model, the protective layer is an anti-corrosion paint coating.

[0015] The beneficial effects of the utility model are:

[0016] 1. Through the setting of the connecting plate, pull the connecting plate upward to make the slot above the card block, loosen the connecting plate, and under the action of gravity, the connecting plate moves downward to make the card block and the card slot engage with each other, thereby completing the fixation between the two support shells, thereby confirming that the installation position between the two support shells is correct. With the prefabricated support shell, there is no need to worry about the concrete solidifying and being unusable, which improves the utilization rate of the concrete.

[0017] 2. Through the setting of the positioning and plug-in mechanism, one support shell is installed in the opened tunnel, and then the other support shell is connected to the previous support shell, so that the first slot is plugged into the second bracket, so as to quickly connect the two support shells and make the height between the two support shells level, reduce the error between the two support shells, and improve the quality and efficiency of the support shell connection.

[0018] 3. Through the arrangement of the first inserting frame and the second slot, the first inserting frame is inserted into the second slot, so that the connection between the two supporting shells is serpentine, which can effectively improve the sealing between the two supporting shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structural schematic diagram of a paste-salt water tunnel support mechanism proposed by the utility model;

[0020] Figure 2 It is a partial cross-sectional structural schematic diagram of a support mechanism for a paste-salt water civil tunnel proposed by the utility model;

[0021] Figure 3 It is a partially enlarged structural schematic diagram of a support mechanism for a gypsum-salt water tunnel proposed by the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the partial decomposition structure of a gypsum-salt water tunnel support mechanism.

[0023] In the figure: 1. support shell; 2. first slot; 3. card block; 4. first bracket; 5. second bracket; 6. second slot; 7. connecting plate; 8. guide surface; 9. card slot; 10. compensation block; 11. slide rod; 12. slide hole; 13. protective layer; 14. isolation layer; 15. base layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-Figure 4 A support mechanism for a grout-salt water tunnel comprises a support shell 1. Two sliding holes 12 are provided on the bottom inner wall of the support shell 1. Slide rods 11 are slidably connected in the two sliding holes 12. Connecting plates 7 are welded to the tops of the two slide rods 11. Slots 9 are provided on both sides of the connecting plate 7. Two clamping blocks 3 are welded to the bottom inner wall of the support shell 1. Positioning and plug-in mechanisms that can be connected to each other are provided at both ends of the support shell 1. Pull the connecting plate 7 to move upward so that the slot 9 is located above the clamping block 3. Release the connecting plate 7. Under the action of gravity, the connecting plate 7 moves downward so that the clamping block 3 and the slot 9 are clamped together, thereby completing the fixation between the two support shells 1, thereby confirming that the installation position between the two support shells 1 is correct. By using a prefabricated support shell 1, there is no need to worry about the concrete solidifying and being unusable, thereby improving the utilization rate of the concrete.

[0026] In the utility model, the positioning plug-in mechanism includes a first slot 2 and a second plug-in bracket 5. The first slot 2 is opened on one side of the support shell 1, and the second plug-in bracket 5 is set on the other side of the support shell 1, and the second plug-in bracket 5 can be inserted into the first slot 2 on the adjacent support shell 1. One support shell 1 is installed in the opened tunnel, and then another support shell 1 is connected to the previous support shell 1, so that the first slot 2 and the second plug-in bracket 5 are plugged, so that the two support shells 1 are quickly connected, and the height between the two support shells 1 is leveled, the error between the two support shells 1 is reduced, and the quality and efficiency of the connection of the support shells 1 are improved. A first plug-in bracket 4 is provided on one side of the first slot 2, and a second slot 6 is opened on one side of the second plug-in bracket 5, and the first plug-in bracket 4 can be inserted into the second slot 6 on the adjacent second plug-in bracket 5. In the connector, the first bracket 4 is inserted into the second slot 6, so that the connection between the two support shells 1 is serpentine, which can effectively improve the sealing between the two support shells 1. The water-facing surface of the connecting plate 7 is the guide surface 8. The flow direction of the water is changed by the guide surface 8, so that the water flows over the connecting plate 7, thereby preventing the flow of water from driving the connecting plate 7 to move upward. A compensation block 10 is welded on one side of the connecting plate 7. The water flows behind the connecting plate 7 and is spatially compensated by the compensation block 10 to prevent debris from accumulating behind the connecting plate 7 and causing corrosion to the connecting plate 7 and the support shell 1. The support shell 1 is composed of a protective layer 13, an isolation layer 14 and a base layer 15. The base layer 15 is made of a mixture of concrete and steel bars, the isolation layer 14 is made of stainless steel plates, and the protective layer 13 is coated with anti-corrosion paint, wherein the anti-corrosion paint uses epoxy anti-corrosion paint.

[0027] Working principle: When in use, first install a support shell 1 into the opened tunnel, and use concrete to fill the gap between the support shell 1 and the tunnel, and then connect another support shell 1 with the previous support shell 1, so that the first slot 2 and the first bracket 4 are respectively plugged with the second bracket 5 and the second slot 6, so that the heights of the two support shells 1 are level, reducing the error between the two support shells 1, and at the same time pull the connecting plate 7 upward to make the slot 9 above the block 3, loosen the connecting plate 7, and under the action of gravity, the connecting plate 7 moves downward to make the block 3 and the slot 9 engage, thereby completing the fixation between the two support shells 1, thereby confirming that the installation position between the two support shells 1 is correct. With the prefabricated support shell 1, there is no need to worry about the concrete solidifying and being unusable, thereby improving the utilization rate of the concrete.

[0028] Finally, it should be noted that: for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this utility model shall be included in the protection scope of this utility model.

Claims

1. A support mechanism for a cement-salt water tunnel, comprising a support shell (1), characterized in that: The bottom inner wall of the support shell (1) is provided with two sliding holes (12), and sliding rods (11) are slidably connected in the two sliding holes (12). The top ends of the two sliding rods (11) are fixedly connected with connecting plates (7), and both sides of the connecting plates (7) are provided with card slots (9). The bottom inner wall of the support shell (1) is fixedly connected with two card blocks (3), and the two ends of the support shell (1) are provided with mutually connectable positioning plug-in mechanisms.

2. A support mechanism for a cement-salt water tunnel according to claim 1, characterized in that: The positioning plug-in mechanism comprises a first slot (2) and a second plug-in bracket (5), wherein the first slot (2) is provided on one side of the support shell (1), and the second plug-in bracket (5) is provided on the other side of the support shell (1), and the second plug-in bracket (5) can be inserted into the first slot (2) on the adjacent support shell (1).

3. A support mechanism for a cement-salt water tunnel according to claim 2, characterized in that: A first inserting frame (4) is provided on one side of the first inserting frame (2), a second inserting frame (6) is provided on one side of the second inserting frame (5), and the first inserting frame (4) can be inserted into the second inserting frame (6) on the adjacent second inserting frame (5).

4. A support mechanism for a cement-salt water tunnel according to claim 1, characterized in that: The water-facing surface of the connecting plate (7) is a flow-guiding surface (8).

5. A support mechanism for a cement-salt water tunnel according to claim 4, characterized in that: A compensation block (10) is fixedly connected to one side of the connecting plate (7).

6. A support mechanism for a cement-salt water tunnel according to claim 1, characterized in that: The support shell (1) comprises a protective layer (13), an isolation layer (14) and a base layer (15).

7. A support mechanism for a cement-salt water tunnel according to claim 6, characterized in that: The base layer (15) is a reinforced concrete casting layer structure.

8. A support mechanism for a cement-salt water tunnel according to claim 6, characterized in that: The isolation layer (14) is a stainless steel plate structure.

9. A support mechanism for a cement-salt water tunnel according to claim 6, characterized in that: The protective layer (13) is an anti-corrosion paint coating.

Images