Temporary steel frame support and method for tunnel emergency treatment

Abstract

The invention belongs to the technical field of tunnel supports, and particularly relates to a tunnel emergency treatment temporary steel frame support which comprises a tunnel body. The supporting assembly comprises a first steel frame supporting plate, a second steel frame supporting plate, a first clamping plate, a second clamping plate, a hollow rod, a connecting column, a threaded sleeve and an inner threaded rod, wherein the first steel frame supporting plate and the second steel frame supporting plate are arranged in the tunnel body, and the first clamping plate, the second clamping plate, the hollow rod, the connecting column, the threaded sleeve and the inner threaded rod are used for emergency supporting of the tunnel. A bearing assembly is arranged between the first steel frame supporting plate and the second steel frame supporting plate. When cracks occur in the tunnel, supporting can be conducted through the first steel frame supporting plate and the second steel frame supporting plate, proper acting force exists between the first steel frame supporting plate and the tunnel and between the second steel frame supporting plate and the tunnel, and the tunnel supporting effect is guaranteed; the operation process is simple, the convenience in the use process of the temporary steel frame support for the tunnel emergency treatment is improved, and the time of the tunnel emergency support is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel support, and in particular relates to a temporary steel frame support and method for tunnel emergency treatment. Background Art

[0002] With the continuous advancement of transportation infrastructure construction, tunnel engineering is increasingly used in highways, railways and other fields. During tunnel construction and operation, due to the influence of various factors such as complex geological conditions, construction process defects, natural disasters, etc., various emergencies are often encountered. Among them, local collapse of tunnels and expansion of cracks pose a serious threat to project safety and progress. Therefore, an efficient and reliable tunnel emergency treatment temporary support system has become the key to ensuring the safety of tunnel construction and operation;

[0003] At present, tunnel emergency support measures mainly include traditional wooden supports and some simple steel support structures. Although wooden supports are relatively easy to obtain and have low costs, they have problems such as limited strength, easy decay, and poor durability, and their safety is difficult to guarantee. Simple steel support structures have improved the support strength to a certain extent, but they generally have the disadvantages of cumbersome installation and poor adaptability. Traditional steel supports often require complex welding and assembly work on site, which not only consumes a lot of time and manpower, but also cannot be quickly built in emergency situations, missing the best time for emergency handling, and unable to achieve accurate and effective support.

[0004] Therefore, a temporary steel frame support for tunnel emergency treatment is designed to solve the above problems. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a temporary steel frame support for tunnel emergency treatment, which can effectively solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a temporary steel frame support for tunnel emergency treatment, comprising a tunnel body, wherein a support assembly is arranged inside the tunnel body, wherein the support assembly comprises a first steel frame support plate and a second steel frame support plate arranged inside the tunnel body, and a first clamping plate, a second clamping plate, a hollow rod, a connecting column, a threaded sleeve and an internal threaded rod for emergency support of the tunnel;

[0007] A bearing assembly is provided between the first steel frame support plate and the second steel frame support plate, and the bearing assembly includes an upper rectangular plate, a lower rectangular plate, a limit column, a threaded column, an inclined rod, a longitudinal rod, a friction block and a friction pad for supporting the first steel frame support plate and the second steel frame support plate;

[0008] An alarm assembly is arranged below the longitudinal rod, and the alarm assembly includes a built-in slide plate for transmitting information when displacement occurs in a partial area of ​​the tunnel, a first spring, a second conductor plate, a connecting conductor plate, a third conductor plate, a rectangular shell, a lower rectangular sleeve and a fourth conductor plate.

[0009] As a preferred temporary steel frame support and method for tunnel emergency treatment of the present invention, the first steel frame support plate and the second steel frame support plate are symmetrically arranged inside the tunnel body, the first steel frame support plate and the second steel frame support plate are respectively fixedly connected with the first arc support plate inside, the surfaces of the two first arc support plates are respectively fixedly connected with the first clamping plate, the first steel frame support plate and the second steel frame support plate are respectively fixedly connected with the second arc support plate inside, the surfaces of the two second arc support plates are respectively fixedly connected with the second clamping plate, two hollow rods are symmetrically arranged inside the tunnel body, one end of the hollow rod is inserted into a groove 1 opened at an end of the first clamping plate away from the first arc support plate, and the other end of the hollow rod is inserted into a groove 2 opened at an end of the second clamping plate away from the second arc support plate, and the two ends of the hollow rod are rotatably connected to the first clamping plate and the second clamping plate through an axle pin.

[0010] As a preferred temporary steel frame support and method for tunnel emergency treatment of the present invention, connecting columns are inserted into the interior of the two hollow rods, and a second bolt is inserted into the surface of each hollow rod. The second bolt passes through a second insertion hole opened on the surface of the connecting column. The connecting column is rotatably connected to the hollow rod through the second bolt, and a first bolt is inserted into the first insertion hole opened at one end of the connecting column, and nuts are threadedly connected to the surfaces of the first bolt and the second bolt.

[0011] As a preferred temporary steel frame support and method for tunnel emergency treatment of the present invention, one end of one of the connecting columns is fixedly connected to an internal threaded rod, and one end of the other connecting column is fixedly connected to an embedded rod, a threaded sleeve is sleeved on the surface of the embedded rod, a bearing is installed inside the threaded sleeve, the embedded rod is inserted inside the bearing, and the threaded sleeve is rotatably connected to the embedded rod through the bearing.

[0012] As a preferred temporary steel frame support and method for tunnel emergency treatment of the present invention, an upper rectangular plate is arranged between the first steel frame support plate and the second steel frame support plate, a lower rectangular plate is arranged below the upper rectangular plate, a threaded column is inserted into the threaded hole opened in the upper rectangular plate, the threaded column and the upper rectangular plate are threadedly connected, first side grooves are respectively opened on both sides of the upper rectangular plate, one end of the two connecting columns are respectively inserted in the first side grooves, the first bolt is inserted in the circular hole opened on the surface of the upper rectangular plate, and the connecting column is rotatably connected to the upper rectangular plate through the first bolt.

[0013] As a preferred temporary steel frame support and method for tunnel emergency treatment of the present invention, inclined rods are respectively inserted into the second side grooves opened on both sides of the lower rectangular plate, and each of the inclined rods is respectively sleeved with a U-shaped block at one end away from the lower rectangular plate, and the two ends of the inclined rod are respectively rotatably connected to the U-shaped block and the lower rectangular plate through a rotating shaft, the U-shaped block is fixedly connected to the surface of the longitudinal rod, and a friction block is fixedly connected to a side of the longitudinal rod away from the U-shaped block, and friction pads are respectively fixedly connected to the adjacent sides of the first steel frame support plate and the second steel frame support plate, and the surfaces of the friction block and the friction pad fit together.

[0014] As a preferred temporary steel frame support and method for tunnel emergency treatment of the present invention, two limit columns are fixedly connected to the upper surface of the lower rectangular plate, and the two limit columns both penetrate the upper rectangular plate longitudinally. The limit columns and the upper rectangular plate are slidably connected, and a circular groove is opened on the upper surface of the lower rectangular plate, and the bottom end of the threaded column is inserted into the inside of the circular groove.

[0015] As a preferred temporary steel frame support and method for tunnel emergency treatment of the present invention, the adjacent sides of the first steel frame support plate and the second steel frame support plate are respectively fixedly connected with a rectangular shell, and the interiors of the two rectangular shells are respectively inserted with built-in slides, and the upper surface of each of the built-in slides is respectively fixedly connected with two square blocks, the bottom end of the longitudinal rod is inserted between the two square blocks, and the longitudinal rod is rotatably connected between the two square blocks by a pin shaft, a first spring is arranged inside the rectangular shell, and the bottom end of the first spring is fixedly connected to the rectangular shell, and a positioning support rod is arranged inside the first spring, and the bottom end of the positioning support rod is fixedly connected to the rectangular shell.

[0016] As a preferred temporary steel frame support and method for tunnel emergency treatment of the present invention, an upper rectangular sleeve and a lower rectangular sleeve are inserted in the square groove opened in the rectangular shell, and the upper rectangular sleeve and the lower rectangular sleeve are fixedly connected to the rectangular shell, a first plug rod is inserted in the upper rectangular sleeve, the first plug rod and the upper rectangular sleeve are slidably connected, the top end of the first plug rod is fixedly connected to a counterweight block, the bottom end of the first plug rod is fixedly connected to a first conductor plate, a connecting conductor plate is inserted in the lower rectangular sleeve, the connecting conductor plate and the lower rectangular sleeve are slidably connected, the top end of the connecting conductor plate is fixedly connected to a second conductor plate, and the second conductor plate and the built-in slide plate The upper surface of the connecting conductor plate is fitted together, the bottom end of the connecting conductor plate is fixedly connected to the third conductor plate, the second conductor plate is located below the first conductor plate, and a fourth conductor plate is arranged below the third conductor plate, the fourth conductor plate and the rectangular shell are slidably connected, the bottom surface of the fourth conductor plate is fixedly connected to a buffer spring, and one end of the buffer spring away from the fourth conductor plate is fixedly connected to the rectangular shell, and auxiliary sliding grooves are respectively provided on the sides of the two built-in slides away from each other, and the third conductor plate is inserted into the inside of the auxiliary sliding groove, the third conductor plate and the built-in slide are slidably connected, and the bottom surface of the lower rectangular plate is installed with a first warning light, a battery and a second warning light.

[0017] The present invention also provides a method for using a temporary steel frame support for tunnel emergency treatment, comprising the following steps:

[0018] S1. According to the actual situation of the tunnel, determine the location where the temporary steel frame support needs to be installed. Before installation, the relevant area in the tunnel needs to be cleaned to ensure that the construction space is clean and tidy, and there is no debris that hinders the installation operation;

[0019] S2. Place the first steel frame support plate and the second steel frame support plate symmetrically inside the tunnel body. If the crack is not serious, insert the internal threaded rod into the threaded sleeve, insert the connecting column into the hollow rod, make the second bolt pass through the first insertion hole on the surface of the connecting column, rotate the threaded sleeve to make the first steel frame support plate and the second steel frame support plate fit with the inner wall of the tunnel and apply appropriate supporting force;

[0020] S3. If the crack is serious, the second bolt is passed through the second insertion hole on the surface of the connecting column, and the ends of the two connecting columns are respectively inserted into the first side grooves on both sides of the upper rectangular plate, and the connecting column and the upper rectangular plate are rotatably connected by the first bolt;

[0021] S4. Place the lower rectangular plate below the upper rectangular plate, so that the two limit columns penetrate the upper rectangular plate longitudinally, insert the bottom end of the threaded column into the circular groove provided on the upper surface of the lower rectangular plate, so that the friction block on the longitudinal rod fits with the surface of the friction pad, rotate the threaded column to move the lower rectangular plate downward, and realize effective support for the first steel frame support plate and the second steel frame support plate. In the process of rotating the threaded column to move the built-in slide plate downward, the second warning light is turned on to indicate that the built-in slide plate has not moved to a suitable position;

[0022] S5. As the threaded column rotates, the second conductor plate and the first conductor plate are no longer in contact, that is, the second warning light and the battery are disconnected, and the second warning light is no longer in operation. By observing the operation of the second warning light, it can be known whether the force exerted by the first steel frame support plate and the second steel frame support plate on the tunnel meets the predetermined requirements;

[0023] S6. When the crack in the tunnel changes suddenly, the first steel frame support plate or the second steel frame support plate suddenly applies a force to one of the connecting columns, so that the longitudinal rod moves downward, and the surfaces of the third conductor plate and the fourth conductor plate fit together, thereby operating the first warning light. By observing the operation of the first warning light, it can be known whether the crack in the tunnel has changed.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. A support assembly is provided, which is conducive to supporting the tunnel through the first steel frame support plate and the second steel frame support plate when the cracks in the tunnel are not serious, and there is an appropriate force between the first steel frame support plate and the second steel frame support plate and the tunnel to ensure the effect of supporting the tunnel. The operation process is relatively simple to improve the convenience of using the temporary steel frame support for emergency treatment of the tunnel, and it can be quickly built in an emergency situation to avoid missing the best time for emergency treatment.

[0026] 2. A load-bearing assembly is provided, which is beneficial to increase the force exerted by the first steel frame support plate and the second steel frame support plate on the inner wall of the tunnel during the rotation of the threaded column, thereby ensuring the effect of supporting the tunnel, and under the restriction of the limit column, the upper rectangular plate can always be parallel to the lower rectangular plate, thereby ensuring better transmission of the force exerted by the first steel frame support plate or the second steel frame support plate, which is beneficial to support the steel frame by relying on the inner wall of the tunnel and the tunnel ground to ensure the firmness of the support structure during use.

[0027] 3. An alarm component is provided, which is helpful to know whether the force applied to the upper rectangular plate meets the requirements by observing the operation of the second warning light, that is, whether the forces applied to the tunnel by the first steel frame support plate and the second steel frame support plate meet the predetermined requirements, so as to ensure the accuracy of the tunnel support and avoid the situation where the support force applied to the tunnel is too large and causes damage to the tunnel;

[0028] It is beneficial to provide stable support for the fracture position of the tunnel after the first steel frame support plate or the second steel frame support plate is displaced in a small range when the crack of the tunnel changes suddenly;

[0029] By observing the operation of the first warning light, it can be known whether there are changes in the tunnel cracks, which can further ensure the effectiveness of the temporary steel frame support structure for tunnel emergency treatment, thereby improving the safety of tunnel use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 For the present invention Figure 1 Sectional view at AA in the middle;

[0033] Figure 3 For the present invention Figure 2 The enlarged view of point A in the middle;

[0034] Figure 4 For the present invention Figure 2 The enlarged view of point B in the middle;

[0035] Figure 5 For the present invention Figure 2 Enlarged view of point C in the middle;

[0036] Figure 6 It is a structural schematic diagram of the first clamping plate and the first steel frame support plate in the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the connecting column and the hollow rod in the present invention;

[0038] Figure 8 It is a schematic diagram of the structure of the upper rectangular plate and the lower rectangular plate in the present invention;

[0039] Fig. 9 It is a schematic diagram of the structure of the friction block and the longitudinal rod in the present invention;

[0040] Fig.10 It is a schematic diagram of the structure of the connecting column and the threaded sleeve in the present invention;

[0041] Fig.11 is a circuit diagram of the present invention;

[0042] In the figure:

[0043] 1. Tunnel body;

[0044] 2. Support assembly; 21. First steel frame support plate; 22. Second steel frame support plate; 23. First arc support plate; 24. Second arc support plate; 25. First clamping plate; 26. Second clamping plate; 27. Hollow rod; 28. Connecting column; 29. ​​First bolt; 210. Second bolt; 211. Threaded sleeve; 212. Internally threaded rod; 213. Embedded rod; 214. Bearing; 215. First jack; 216. Second jack;

[0045] 3. Bearing assembly; 31. Upper rectangular plate; 32. Lower rectangular plate; 33. Limiting column; 34. Threaded hole; 35. Circular groove; 36. Threaded column; 37. Inclined rod; 38. Longitudinal rod; 39. Friction block; 310. U-shaped block; 311. Friction pad; 312. First side groove; 313. Second side groove;

[0046] 4. Alarm assembly; 41. Square block; 42. Built-in slide plate; 43. First spring; 44. Counterweight block; 45. First plug rod; 46. First conductor plate; 47. Second conductor plate; 48. Connecting conductor plate; 49. Third conductor plate; 410. Auxiliary slide groove; 411. Positioning support rod; 412. Rectangular shell; 413. Upper rectangular sleeve; 414. Square groove; 415. Lower rectangular sleeve; 416. Fourth conductor plate; 417. Buffer spring; 418. First warning light; 419. Battery; 420. Second warning light. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] like Figure 1-Figure 11 As shown;

[0049] A temporary steel frame support for emergency treatment of a tunnel comprises a tunnel body 1, a support assembly 2 is arranged inside the tunnel body 1, the support assembly 2 comprises a first steel frame support plate 21, a second steel frame support plate 22, a first arc-shaped support plate 23, a second arc-shaped support plate 24, a first clamping plate 25, a second clamping plate 26, a hollow rod 27, a connecting column 28, a first bolt 29, a second bolt 210, an embedded rod 213, a bearing 214, a threaded sleeve 211 and an internal threaded rod 212, the first steel frame support plate 21 and the second steel frame support plate 22 are symmetrically arranged inside the tunnel body 1, and the first arc-shaped support plate 23 is fixedly connected to the inside of the first steel frame support plate 21 and the second steel frame support plate 22 respectively. The surfaces of the two first arc-shaped support plates 23 are respectively fixedly connected with the first clamping plates 25, the insides of the first steel frame support plate 21 and the second steel frame support plate 22 are respectively fixedly connected with the second arc-shaped support plates 24, and the surfaces of the two second arc-shaped support plates 24 are respectively fixedly connected with the second clamping plates 26. Two hollow rods 27 are symmetrically arranged inside the tunnel body 1, one end of the hollow rod 27 is inserted into a groove 1 opened at one end of the first clamping plate 25 away from the first arc-shaped support plate 23, and the other end of the hollow rod 27 is inserted into a groove 2 opened at one end of the second clamping plate 26 away from the second arc-shaped support plate 24, and the two ends of the hollow rod 27 are respectively rotatably connected with the first clamping plate 25 and the second clamping plate 26 through axle pins.

[0050] A connecting column 28 is inserted into the interior of the two hollow rods 27, and a second bolt 210 is inserted into the surface of each hollow rod 27. The second bolt 210 passes through a second insertion hole 216 opened on the surface of the connecting column 28. The connecting column 28 is rotatably connected to the hollow rod 27 through the second bolt 210. A first bolt 29 is inserted into a first insertion hole 215 opened at one end of the connecting column 28, and nuts are threadedly connected to the surfaces of the first bolt 29 and the second bolt 210.

[0051] One end of one of the connecting columns 28 is fixedly connected to an internal threaded rod 212, and one end of the other connecting column 28 is fixedly connected to an embedded rod 213. A threaded sleeve 211 is sleeved on the surface of the embedded rod 213, and a bearing 214 is installed inside the threaded sleeve 211. The embedded rod 213 is inserted inside the bearing 214, and the threaded sleeve 211 is rotatably connected to the embedded rod 213 through the bearing 214.

[0052] A bearing assembly 3 is arranged between the first steel frame support plate 21 and the second steel frame support plate 22, and the bearing assembly 3 includes an upper rectangular plate 31, a lower rectangular plate 32, a limiting column 33, a threaded column 36, a tilting rod 37, a longitudinal rod 38, a friction block 39, a U-shaped block 310 and a friction pad 311. An upper rectangular plate 31 is arranged between the first steel frame support plate 21 and the second steel frame support plate 22, and a lower rectangular plate 32 is arranged below the upper rectangular plate 31. A threaded column 36 is inserted into a threaded hole 34 opened in the upper rectangular plate 31, and the threaded column 36 is threadedly connected to the upper rectangular plate 31. First side grooves 312 are respectively opened on both sides of the upper rectangular plate 31, one end of the two connecting columns 28 is respectively inserted in the first side grooves 312, and the first bolt 29 is inserted in a circular hole opened on the surface of the upper rectangular plate 31. The connecting column 28 is rotatably connected to the upper rectangular plate 31 through the first bolt 29.

[0053] Tilting rods 37 are respectively inserted into the second side grooves 313 opened on both sides of the lower rectangular plate 32, and a U-shaped block 310 is respectively sleeved on the end of each tilting rod 37 away from the lower rectangular plate 32, and the two ends of the tilting rod 37 are rotatably connected to the U-shaped block 310 and the lower rectangular plate 32 through a rotating shaft, and the U-shaped block 310 is fixedly connected to the surface of the longitudinal rod 38, and a friction block 39 is fixedly connected to a side of the longitudinal rod 38 away from the U-shaped block 310, and a friction pad 311 is respectively fixedly connected to the adjacent side of the first steel frame support plate 21 and the second steel frame support plate 22, and the surfaces of the friction block 39 and the friction pad 311 are in contact with each other.

[0054] Two limit columns 33 are fixedly connected to the upper surface of the lower rectangular plate 32. The two limit columns 33 both penetrate the upper rectangular plate 31 longitudinally. The limit columns 33 and the upper rectangular plate 31 are slidably connected. A circular groove 35 is opened on the upper surface of the lower rectangular plate 32, and the bottom end of the threaded column 36 is inserted into the inside of the circular groove 35.

[0055] An alarm assembly 4 is arranged below the longitudinal rod 38, and the alarm assembly 4 includes a square block 41, a built-in slide plate 42, a first spring 43, a counterweight block 44, a first plug rod 45, a first conductor plate 46, a second conductor plate 47, a connecting conductor plate 48, a third conductor plate 49, a positioning support rod 411, a rectangular shell 412, an upper rectangular sleeve 413, a buffer spring 417, a first warning light 418, a battery 419, a second warning light 420, a lower rectangular sleeve 415 and a fourth conductor plate 416. The first steel frame support plate 21 and the second steel frame support plate 22 are respectively fixedly connected on one side adjacent to each other. A rectangular shell 412 is connected, and built-in slides 42 are respectively inserted into the two rectangular shells 412. The upper surface of each built-in slide 42 is fixedly connected to two square blocks 41. The bottom end of the longitudinal rod 38 is inserted between the two square blocks 41. The longitudinal rod 38 is rotatably connected between the two square blocks 41 through a pin shaft. A first spring 43 is arranged inside the rectangular shell 412, and the bottom end of the first spring 43 is fixedly connected to the rectangular shell 412. A positioning strut 411 is arranged inside the first spring 43, and the bottom end of the positioning strut 411 is fixedly connected to the rectangular shell 412.

[0056] An upper rectangular sleeve 413 and a lower rectangular sleeve 415 are inserted into the square groove 414 opened inside the rectangular shell 412. The upper rectangular sleeve 413 and the lower rectangular sleeve 415 are fixedly connected to the rectangular shell 412. A first plug rod 45 is inserted into the upper rectangular sleeve 413. The first plug rod 45 and the upper rectangular sleeve 413 are slidably connected. The top of the first plug rod 45 is fixedly connected to a counterweight 44. The bottom end of the first plug rod 45 is fixedly connected to a first conductor plate 46. A connecting conductor plate 48 is inserted into the lower rectangular sleeve 415. The connecting conductor plate 48 and the lower rectangular sleeve 415 are slidably connected. The top of the connecting conductor plate 48 is fixedly connected to a second conductor plate 47. The second conductor plate 47 fits the upper surface of the built-in slide plate 42. The connecting conductor plate 46 is fixedly connected to the bottom end of the first plug rod 45. 8 is fixedly connected to the bottom end of the third conductor plate 49, the second conductor plate 47 is located below the first conductor plate 46, and a fourth conductor plate 416 is arranged below the third conductor plate 49. The fourth conductor plate 416 is slidably connected to the rectangular shell 412, and a buffer spring 417 is fixedly connected to the bottom surface of the fourth conductor plate 416. One end of the buffer spring 417 away from the fourth conductor plate 416 is fixedly connected to the rectangular shell 412, and auxiliary slide grooves 410 are respectively provided on the sides away from each other of the two built-in slide plates 42, and the third conductor plate 49 is inserted into the inside of the auxiliary slide groove 410. The third conductor plate 49 and the built-in slide plate 42 are slidably connected, and a first warning light 418, a battery 419 and a second warning light 420 are installed on the bottom surface of the lower rectangular plate 32.

[0057] The present invention also provides a method for using a temporary steel frame support for tunnel emergency treatment, comprising the following steps:

[0058] S1. According to the actual situation of the tunnel, determine the location where the temporary steel frame support needs to be installed. Before installation, the relevant area in the tunnel needs to be cleaned to ensure that the construction space is clean and tidy, and there is no debris that hinders the installation operation;

[0059] S2. The first steel frame support plate 21 and the second steel frame support plate 22 are symmetrically placed inside the tunnel body 1. If the crack is not serious, the internal threaded rod 212 is inserted into the threaded sleeve 211, and the connecting column 28 is inserted into the hollow rod 27. The second bolt 210 passes through the first insertion hole 215 on the surface of the connecting column 28. The threaded sleeve 211 is rotated to make the first steel frame support plate 21 and the second steel frame support plate 22 fit with the inner wall of the tunnel and apply appropriate supporting force.

[0060] S3. If the crack is serious, the second bolt 210 is passed through the second insertion hole 216 on the surface of the connecting column 28, and the ends of the two connecting columns 28 are respectively inserted into the first side grooves 312 on both sides of the upper rectangular plate 31, and the first bolt 29 is used to realize the rotation connection between the connecting column 28 and the upper rectangular plate 31;

[0061] S4, place the lower rectangular plate 32 below the upper rectangular plate 31, so that the two limit columns 33 vertically penetrate the upper rectangular plate 31, insert the bottom end of the threaded column 36 into the circular groove 35 opened on the upper surface of the lower rectangular plate 32, so that the friction block 39 on the longitudinal rod 38 fits with the surface of the friction pad 311, rotate the threaded column 36, and move the lower rectangular plate 32 downward to achieve effective support for the first steel frame support plate 21 and the second steel frame support plate 22. In the process of rotating the threaded column 36 to move the built-in slide plate 42 downward, the second warning light 420 is running to indicate that the built-in slide plate 42 has not moved to a suitable position;

[0062] S5. As the threaded column 36 rotates, the second conductor plate 47 and the first conductor plate 46 are no longer in contact, that is, the second warning light 420 and the battery 419 are disconnected, and the second warning light 420 is no longer in operation. By observing the operation of the second warning light 420, it can be known whether the force exerted by the first steel frame support plate 21 and the second steel frame support plate 22 on the tunnel meets the predetermined requirements;

[0063] S6. When the crack in the tunnel changes suddenly, the first steel frame support plate 21 or the second steel frame support plate 22 suddenly applies a force to one of the connecting columns 28, so that the longitudinal rod 38 moves downward, so that the surfaces of the third conductor plate 49 and the fourth conductor plate 416 fit together, and then the first warning light 418 is turned on. By observing the operation of the first warning light 418, it can be known whether the crack in the tunnel has changed.

[0064] Working principle: When cracks appear in the tunnel and need to be supported, and when the cracks in the tunnel are not serious, the first steel frame support plate 21 and the second steel frame support plate 22 are placed in the tunnel, and the two connecting columns 28 are placed between the two hollow rods 27. Since one end of one of the connecting columns 28 is fixedly connected to the internal threaded rod 212, and one end of the other connecting column 28 is rotatably connected to the threaded sleeve 211, and the threaded sleeve 211 and the internal threaded rod 212 are located between the two connecting columns 28, the internal threaded rod 212 is inserted into the inside of the threaded sleeve 211, and the rotating threaded sleeve 211 can make the internal threaded rod 212 screwed into the inside of the threaded sleeve 211 under the action of the thread. When the ends of the two connecting columns 28 that are away from each other are respectively located in the insides of the two hollow rods 27, the two second bolts 210 respectively penetrate the first holes opened on the surface of the connecting column 28. The second bolt 210 can be fixed to the position of the second bolt 210 by the action of the nut. At this time, the connecting column 28 can be rotatably connected with the second bolt 210 and the hollow rod 27. The rotating threaded sleeve 211 can adjust the distance between the two connecting columns 28, and then the two hollow rods 27 can be respectively applied with force, so that the first steel frame support plate 21 and the second steel frame support plate 22 fit with the inner wall of the tunnel and exert appropriate force on the tunnel, thereby achieving the effect of emergency support for the tunnel, which is conducive to supporting the tunnel through the first steel frame support plate 21 and the second steel frame support plate 22 when the cracks in the tunnel are not serious, and the first steel frame support plate 21 and the second steel frame support plate 22 have appropriate force between them and the tunnel, ensuring the effect of tunnel support. The operation process is relatively simple, which improves the convenience of using the temporary steel frame support for emergency treatment of the tunnel.

[0065] When the cracks in the tunnel are serious and the support structure is used, the two connecting columns 28 are respectively inserted into the interior of the two hollow rods 27, and the two second bolts 210 are respectively inserted through the second insertion holes 216 on the surface of the connecting columns 28. When the nuts are sleeved on the surfaces of the second bolts 210, the positions of the second bolts 210 are fixed. At this time, the connecting columns 28 are rotatably connected with the hollow rods 27 through the second bolts 210, so that the ends of the two connecting columns 28 are respectively inserted into the first side grooves 312 opened on both sides of the upper rectangular plate 31, and the two first bolts 29 are respectively inserted into the circular holes opened on the surface of the upper rectangular plate 31, and the first bolts 29 are respectively inserted into the circular holes opened on the surface of the upper rectangular plate 31. The first bolt 29 penetrates the first insertion hole 215 on the surface of the connecting column 28. When the nut is sleeved on the surface of the first bolt 29, the position of the first bolt 29 is fixed. At this time, the connecting column 28 is rotatably connected with the upper rectangular plate 31 through the first bolt 29. The lower rectangular plate 32 is operated so that the two limiting columns 33 penetrate the upper rectangular plate 31 longitudinally, and the friction block 39 is attached to the surface of the friction pad 311. The threaded column 36 is rotated, and the bottom end of the threaded column 36 is inserted into the inside of the threaded hole 34. With the rotation of the threaded column 36, the lower rectangular plate 32 moves downward, thereby increasing the force exerted by the friction block 39 on the friction pad 311.

[0066] Due to the inclined setting of the inclined rod 37, the friction block 39 exerts a horizontal force and a vertical force on the friction pad 311. In the case of a vertical force, and when the force exceeds a certain range, the longitudinal rod 38 will drive the built-in slide plate 42 to move downward, and the movement of the built-in slide plate 42 compresses the first spring 43. As the distance the built-in slide plate 42 moves downward increases, the compression distance of the first spring 43 continues to increase, and the force of the elastic potential energy of the first spring 43 on the built-in slide plate 42 continues to increase until the threaded column 36 is no longer rotating, and the elastic potential energy force exerted by the first spring 43 on the built-in slide plate 42 and the longitudinal force exerted on the longitudinal rod 38 are balanced. At this time, the longitudinal rod 38 does not continue to move, thereby achieving the fixing of the position of the lower rectangular plate 32. At this time, the upper rectangular plate 31 is supported by the lower rectangular plate 32, thereby achieving the effect of supporting the first steel frame support plate 21 and the second steel frame support plate 22, thereby ensuring the firmness of the support structure during use;

[0067] As the threaded column 36 continues to rotate, the bottom surface of the built-in slide plate 42 and the top of the positioning support rod 411 are in contact with each other. At this time, the built-in slide plate 42 cannot move downward any further, that is, the built-in slide plate 42 moves to the limit. Since the bottom ends of the first steel frame support plate 21 and the second steel frame support plate 22 are in contact with the tunnel floor, the steel frame is supported by the tunnel inner wall and the tunnel floor to ensure the firmness of the support structure during use.

[0068] The positive electrode of the battery 419 is connected to the inlet terminals of the second warning light 420 and the first warning light 418 through two wires, the outlet terminal of the second warning light 420 is connected to the first conductor plate 46 through a wire, and the outlet terminal of the first warning light 418 is connected to the fourth conductor plate 416 through a wire. The second conductor plate 47, the connecting conductor plate 48 and the third conductor plate 49 are all conductor structures, wherein the second conductor plate 47 is connected to the negative electrode of the battery 419 through a wire. The circuit connection can be referred to Fig.11 As shown, since the adjacent sides of the first steel frame support plate 21 and the second steel frame support plate 22 are both provided with an alarm assembly 4, two sets of first warning lights 418, batteries 419 and second warning lights 420 can be installed on the bottom surface of the lower rectangular plate 32;

[0069] In the process of rotating the threaded column 36 to move the built-in slide plate 42 downward, the first conductor plate 46 and the second conductor plate 47 are always in contact with each other under the action of the gravity of the counterweight block 44. At this time, the second warning light 420 and the battery 419 form a closed circuit, and the second warning light 420 is lit. The operation of the second warning light 420 indicates that the built-in slide plate 42 has not moved to a suitable position. As the threaded column 36 rotates, the built-in slide plate 42 continues to move downward. At this time, the first spring 43 is continuously compressed, that is, the force acting on the upper rectangular plate 31 is continuously increased. The built-in slide plate 42 moves downward, so that the second conductor plate 47 fits the built-in slide plate 42 and the first conductor plate 46 move downward synchronously. When the counterweight block 44 fits the surface of the upper rectangular sleeve 413, the counterweight block 44 cannot move downward. Continue to move, and the built-in slide plate 42 moves down so that the second conductor plate 47 moves down with the built-in slide plate 42. At this time, the second conductor plate 47 and the first conductor plate 46 are no longer in contact, that is, the second warning light 420 and the battery 419 form a short circuit, and the second warning light 420 is not running. By observing the second warning light 420, it can be known that the built-in slide plate 42 has moved to a suitable position, that is, the force applied to the upper rectangular plate 31 meets the requirement. By observing the operation of the second warning light 420, it can be known whether the force applied to the upper rectangular plate 31 meets the requirement, that is, whether the force applied to the tunnel by the first steel frame support plate 21 and the second steel frame support plate 22 meets the predetermined requirement, thereby ensuring the accuracy of the tunnel support and avoiding the situation where the tunnel is damaged by a large support force applied to the tunnel.

[0070] When the tunnel crack changes suddenly, the fracture position suddenly applies a force to the first steel frame support plate 21 or the second steel frame support plate 22, so that the first steel frame support plate 21 or the second steel frame support plate 22 suddenly applies a force to one of the connecting columns 28. The increase in the force on the connecting column 28 means that the force on the upper rectangular plate 31 suddenly increases, thereby causing the force applied by the lower rectangular plate 32 to the inclined rod 37 to suddenly increase, so that the friction block 39 moves downward in contact with the surface of the friction pad 311, thereby causing the longitudinal rod 38 to move downward. The movement of the longitudinal rod 38 drives the built-in slide plate 42 to slide downward inside the rectangular shell 412 until the built-in slide plate 42 and the top end of the positioning support rod 411 are in contact. At this time, the built-in slide plate 42 cannot continue to move downward, which is conducive to providing stable support for the fracture position of the tunnel after the first steel frame support plate 21 or the second steel frame support plate 22 undergoes a small range of displacement when the tunnel crack changes suddenly.

[0071] During this process, when the built-in slide plate 42 moves downward, the movement of the built-in slide plate 42 causes the second conductor plate 47 to move downward synchronously until the surfaces of the third conductor plate 49 and the fourth conductor plate 416 are in contact with each other. When the surfaces of the third conductor plate 49 and the fourth conductor plate 416 are in contact with each other, the storage battery 419 and the first warning light 418 form a closed circuit, so that the first warning light 418 operates. By observing the situation of the first warning light 418, it can be determined whether the tunnel crack has changed. In addition, when the third conductor plate 49 is in contact with each other during the movement of the built-in slide plate 42 downward, the first warning light 418 is turned on. The inner wall top of the auxiliary slide 410 is fitted together. With the movement of the built-in slide 42, the surfaces of the third conductor plate 49 and the fourth conductor plate 416 can be closely fitted under the action of the buffer spring 417. When the bottom surface of the built-in slide 42 is fitted with the positioning support rod 411, the buffer spring 417 is in a compressed state, so that the first warning light 418 is continuously operated. By observing the operation of the first warning light 418, it can be known whether the cracks in the tunnel have changed, which further ensures the use effect of the temporary steel frame support structure for tunnel emergency treatment, thereby improving the safety of tunnel use.

[0072] The first warning light 418 generally has a sensor or control circuit inside. When the first warning light 418 is running, an electrical signal or digital signal is generated, and the signal is transmitted to the external alarm platform through wired communication methods such as cables or wireless communication methods such as Wi-Fi, Bluetooth, ZigBee, etc., thereby improving the performance of the support structure.

[0073] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A temporary steel frame support for tunnel emergency treatment, comprising a tunnel body (1), characterized in that: A support assembly (2) is arranged inside the tunnel body (1), and the support assembly (2) comprises a first steel frame support plate (21) and a second steel frame support plate (22) arranged inside the tunnel body (1), and a first clamping plate (25), a second clamping plate (26), a hollow rod (27), a connecting column (28), a threaded sleeve (211) and an internal threaded rod (212) for emergency support of the tunnel; A bearing assembly (3) is arranged between the first steel frame support plate (21) and the second steel frame support plate (22), and the bearing assembly (3) comprises an upper rectangular plate (31), a lower rectangular plate (32), a limiting column (33), a threaded column (36), an inclined rod (37), a longitudinal rod (38), a friction block (39) and a friction pad (311) for supporting the first steel frame support plate (21) and the second steel frame support plate (22); An alarm assembly (4) is arranged below the longitudinal rod (38), and the alarm assembly (4) comprises a built-in slide plate (42) for transmitting information when displacement occurs in a partial area of ​​the tunnel, a first spring (43), a second conductor plate (47), a connecting conductor plate (48), a third conductor plate (49), a rectangular housing (412), a lower rectangular sleeve (415) and a fourth conductor plate (416).

2. The temporary steel frame support for tunnel emergency treatment according to claim 1 is characterized by: The first steel frame support plate (21) and the second steel frame support plate (22) are symmetrically arranged inside the tunnel body (1); the first steel frame support plate (21) and the second steel frame support plate (22) are respectively fixedly connected with first arc-shaped support plates (23); the surfaces of the two first arc-shaped support plates (23) are respectively fixedly connected with first clamping plates (25); the first steel frame support plate (21) and the second steel frame support plate (22) are respectively fixedly connected with second arc-shaped support plates (24); the surfaces of the two second arc-shaped support plates (24) are respectively fixedly connected with first clamping plates (25); The surfaces are respectively fixedly connected with second clamping plates (26), and two hollow rods (27) are symmetrically arranged inside the tunnel body (1), one end of the hollow rod (27) is inserted into a groove 1 opened at an end of the first clamping plate (25) away from the first arc-shaped support plate (23), and the other end of the hollow rod (27) is inserted into a groove 2 opened at an end of the second clamping plate (26) away from the second arc-shaped support plate (24), and the two ends of the hollow rod (27) are rotatably connected to the first clamping plate (25) and the second clamping plate (26) through shaft pins.

3. The temporary steel frame support for tunnel emergency treatment according to claim 1 is characterized by: A connecting column (28) is inserted into the interior of the two hollow rods (27), a second bolt (210) is inserted into the surface of each hollow rod (27), the second bolt (210) passes through a second insertion hole (216) opened on the surface of the connecting column (28), the connecting column (28) is rotatably connected to the hollow rod (27) through the second bolt (210), a first bolt (29) is inserted into a first insertion hole (215) opened at one end of the connecting column (28), and nuts are threadedly connected to the surfaces of the first bolt (29) and the second bolt (210).

4. The temporary steel frame support for tunnel emergency treatment according to claim 1 is characterized by: One end of one of the connecting columns (28) is fixedly connected to an internal threaded rod (212), and one end of the other connecting column (28) is fixedly connected to an embedded rod (213). A threaded sleeve (211) is sleeved on the surface of the embedded rod (213). A bearing (214) is installed inside the threaded sleeve (211). The embedded rod (213) is inserted inside the bearing (214). The threaded sleeve (211) is rotatably connected to the embedded rod (213) via the bearing (214).

5. The temporary steel frame support for tunnel emergency treatment according to claim 3 is characterized by: An upper rectangular plate (31) is arranged between the first steel frame support plate (21) and the second steel frame support plate (22), a lower rectangular plate (32) is arranged below the upper rectangular plate (31), a threaded column (36) is inserted into a threaded hole (34) opened inside the upper rectangular plate (31), the threaded column (36) and the upper rectangular plate (31) are threadedly connected, first side grooves (312) are respectively opened on both sides of the upper rectangular plate (31), one end of the two connecting columns (28) are respectively inserted into the first side grooves (312), the first bolt (29) is inserted into a circular hole opened on the surface of the upper rectangular plate (31), and the connecting column (28) is rotatably connected to the upper rectangular plate (31) through the first bolt (29).

6. The temporary steel frame support for tunnel emergency treatment according to claim 1 is characterized by: Tilting rods (37) are respectively inserted into the second side grooves (313) opened on both sides of the lower rectangular plate (32), and a U-shaped block (310) is respectively sleeved on one end of each of the tilting rods (37) away from the lower rectangular plate (32), and the two ends of the tilting rods (37) are rotatably connected to the U-shaped block (310) and the lower rectangular plate (32) through a rotating shaft, respectively, and the U-shaped block (310) is fixedly connected to the surface of the longitudinal rod (38), and a friction block (39) is fixedly connected to a side of the longitudinal rod (38) away from the U-shaped block (310), and a friction pad (311) is respectively fixedly connected to the adjacent side of the first steel frame support plate (21) and the second steel frame support plate (22), and the surfaces of the friction block (39) and the friction pad (311) are in contact with each other.

7. The temporary steel frame support for tunnel emergency treatment according to claim 1 is characterized by: Two limiting columns (33) are fixedly connected to the upper surface of the lower rectangular plate (32), and the two limiting columns (33) both vertically penetrate the upper rectangular plate (31). The limiting columns (33) and the upper rectangular plate (31) are slidably connected. A circular groove (35) is formed on the upper surface of the lower rectangular plate (32), and the bottom end of the threaded column (36) is inserted into the circular groove (35).

8. The temporary steel frame support for tunnel emergency treatment according to claim 1 is characterized by: The adjacent sides of the first steel frame support plate (21) and the second steel frame support plate (22) are respectively fixedly connected with a rectangular shell (412), and the interiors of the two rectangular shells (412) are respectively inserted with built-in slides (42), and the upper surface of each built-in slide (42) is respectively fixedly connected with two square blocks (41), and the bottom end of the longitudinal rod (38) is inserted between the two square blocks (41), and the longitudinal rod (38) is rotatably connected between the two square blocks (41) through a pin shaft, and a first spring (43) is arranged inside the rectangular shell (412), and the bottom end of the first spring (43) is fixedly connected to the rectangular shell (412), and a positioning support rod (411) is arranged inside the first spring (43), and the bottom end of the positioning support rod (411) is fixedly connected to the rectangular shell (412).

9. The temporary steel frame support for tunnel emergency treatment according to claim 1 is characterized by: An upper rectangular sleeve (413) and a lower rectangular sleeve (415) are inserted into a square groove (414) provided inside the rectangular shell (412). Both the upper rectangular sleeve (413) and the lower rectangular sleeve (415) are fixedly connected to the rectangular shell (412). A first plug rod (45) is inserted into the upper rectangular sleeve (413). The first plug rod (45) and the upper rectangular sleeve (413) are slidably connected. A counterweight (44) is fixedly connected to the top end of the first plug rod (45). A first conductor plate (46) is fixedly connected to the bottom end of the first plug rod (45). A connecting conductor plate (48) is inserted into the lower rectangular sleeve (415). The connecting conductor plate (48) and the lower rectangular sleeve (415) are slidably connected. A second conductor plate (47) is fixedly connected to the top end of the connecting conductor plate (48). The second conductor plate (47) is in contact with the upper surface of the built-in slide plate (42). The bottom end of the plate (48) is fixedly connected to a third conductor plate (49), the second conductor plate (47) is located below the first conductor plate (46), a fourth conductor plate (416) is arranged below the third conductor plate (49), the fourth conductor plate (416) is slidably connected to the rectangular shell (412), a buffer spring (417) is fixedly connected to the bottom surface of the fourth conductor plate (416), one end of the buffer spring (417) away from the fourth conductor plate (416) is fixedly connected to the rectangular shell (412), auxiliary slide grooves (410) are respectively provided on the sides away from each other of the two built-in slide plates (42), the third conductor plate (49) is inserted into the inside of the auxiliary slide groove (410), the third conductor plate (49) and the built-in slide plate (42) are slidably connected, and a first warning light (418), a battery (419) and a second warning light (420) are installed on the bottom surface of the lower rectangular plate (32).

10. A method for using a temporary steel frame support for tunnel emergency treatment, using the temporary steel frame support and method for tunnel emergency treatment according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. According to the actual situation of the tunnel, determine the location where the temporary steel frame support needs to be installed. Before installation, the relevant area in the tunnel needs to be cleaned to ensure that the construction space is clean and tidy, and there is no debris that hinders the installation operation; S2. The first steel frame support plate (21) and the second steel frame support plate (22) are symmetrically placed inside the tunnel body (1). If the crack is not serious, the internal threaded rod (212) is inserted into the threaded sleeve (211), and the connecting column (28) is inserted into the hollow rod (27). The second bolt (210) passes through the first insertion hole (215) provided on the surface of the connecting column (28). The threaded sleeve (211) is rotated to make the first steel frame support plate (21) and the second steel frame support plate (22) fit against the inner wall of the tunnel and apply appropriate supporting force; S3. If the crack is serious, the second bolt (210) is inserted through the second insertion hole (216) provided on the surface of the connecting column (28), and the ends of the two connecting columns (28) are respectively inserted into the first side grooves (312) provided on both sides of the upper rectangular plate (31), and the connecting column (28) and the upper rectangular plate (31) are rotatably connected by the first bolt (29); S4, placing the lower rectangular plate (32) below the upper rectangular plate (31), so that the two limit columns (33) vertically penetrate the upper rectangular plate (31), inserting the bottom end of the threaded column (36) into the circular groove (35) provided on the upper surface of the lower rectangular plate (32), so that the friction block (39) on the longitudinal rod (38) fits with the surface of the friction pad (311), rotating the threaded column (36) to move the lower rectangular plate (32) downward, so as to achieve effective support for the first steel frame support plate (21) and the second steel frame support plate (22), and in the process of rotating the threaded column (36) to move the built-in slide plate (42) downward, the second warning light (420) is turned on to indicate that the built-in slide plate (42) has not moved to a suitable position; S5. As the threaded column (36) rotates, the second conductor plate (47) and the first conductor plate (46) are no longer in contact with each other, that is, the second warning light (420) and the storage battery (419) are disconnected, and the second warning light (420) is no longer in operation. By observing the operation of the second warning light (420), it can be known whether the force applied by the first steel frame support plate (21) and the second steel frame support plate (22) to the tunnel meets the predetermined requirement; S6. When the crack in the tunnel changes suddenly, the first steel frame support plate (21) or the second steel frame support plate (22) suddenly applies a force to one of the connecting columns (28), so that the longitudinal rod (38) moves downward, so that the surfaces of the third conductor plate (49) and the fourth conductor plate (416) are in contact with each other, and the first warning light (418) is turned on. By observing the operation of the first warning light (418), it can be known whether the crack in the tunnel has changed.

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