A corrugated steel plate support structure used in an anchor shotcrete inverted vertical shaft

Abstract

The present invention belongs to the technical field of tunnel support structures, specifically a corrugated steel plate support structure used in an anchor-sprayed inverted vertical shaft, comprising a corrugated steel plate main body, a plurality of connecting holes being provided on the outside of the corrugated steel plate main body, a clamping rod being fixed on the outside of the corrugated steel plate main body and at the wave crest, a clamping groove being provided on the outside of the corrugated steel plate main body and at a side away from the clamping rod, which is adapted to the clamping rod; a sliding groove being provided inside the clamping rod, a guide rod being slidably connected to the sliding groove, and a chamfer being provided on one end of the clamping rod close to the guide rod; storage capsules being fixed on the upper and lower sides of the inner wall of the clamping groove, and hot-melt adhesive particles being fixed inside the storage capsules; through the design of the clamping rod and the clamping groove, the connectivity between the plurality of corrugated steel plate main bodies is increased, thereby improving the effect of the corrugated steel plate in the support process, avoiding damage caused by excessive pressure on a single corrugation, and further improving the stability of the corrugated steel plate support.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel support structures, in particular to a corrugated steel plate support structure used in an anchor-sprayed inverted vertical shaft. Background Art

[0002] The most significant advantage of corrugated steel plates is that the corrugation increases their virtual thickness, significantly improving their buckling and shear resistance. Consequently, as a building material, corrugated steel plates are increasingly being used in transportation facilities, building structures, and factory and mine construction. In some underground projects, such as pipe jacking pits and shafts, corrugated steel plates are also being used to create arched structures in the initial stages of excavation support.

[0003] A Chinese patent with publication number CN112571873A discloses a corrugated pre-coated steel plate, including a carbon structural steel plate body consisting of a peak section and a trough section, the left and right sides of which are symmetrically arranged half-peak sections, and connecting grooves are respectively provided on the lower side surfaces of the left and right sides of the steel plate body, and a connecting magnetic strip is provided in a connecting groove, and the width A of the connecting magnetic strip corresponds to twice the width B of the connecting groove; the corrugated pre-coated steel plate can have a lighter weight while ensuring the rigidity of the corrugated pre-coated steel plate, and can also facilitate the connection and disassembly between adjacent corrugated pre-coated steel plates, thereby reducing the cost of use.

[0004] At present, most of the corrugated steel plates are connected by bolts. The integrity of the corrugated steel plates connected by bolts is poor. The corrugated steel plates are subjected to complex forces when supported, and often a certain area is subjected to excessive pressure. At this time, the corrugated steel plates will be damaged due to the poor integrity. Therefore, the present invention provides a corrugated steel plate support structure for use in an anchor-sprayed inverted vertical shaft. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the corrugated steel plate support structure used in the anchor spraying inverted vertical shaft described in the present invention includes a corrugated steel plate main body, a plurality of connecting holes are opened on the outside of the corrugated steel plate main body, a clamping rod is fixed on the outside of the corrugated steel plate main body and located at the crest, and a clamping groove adapted to the clamping rod is opened on the outside of the corrugated steel plate main body and located on the side away from the clamping rod; when working, multiple corrugated steel plate main bodies are spliced ​​together, and during the splicing process, the clamping rod needs to be inserted into the clamping groove corresponding to the previous corrugated steel plate main body, and then the multiple corrugated steel plate main bodies are spliced ​​together through the connecting holes and bolts. The design of the clamping rod and the clamping groove increases the connectivity between the multiple corrugated steel plate main bodies, thereby improving the effect of the corrugated steel plate in the support process, and further improving the stability of the corrugated steel plate support.

[0007] Preferably, a sliding groove is provided inside the clamping rod, and a guide rod is slidably connected inside the sliding groove. The clamping rod is provided with a chamfer at one end close to the guide rod; when working, the diameter of the guide rod is smaller than the diameter of the clamping rod, thereby facilitating the positioning between the corrugated steel plate body and the corrugated steel plate body during installation, thereby facilitating the insertion of the clamping rod into the clamping groove, and the setting of the chamfer on the outside of the clamping rod further improves the smoothness of installation and facilitates installation.

[0008] Preferably, storage capsules are fixed on the upper and lower sides of the inner wall of the card slot, hot melt adhesive particles are fixed inside the storage capsules, and a thimble compatible with the storage capsule is fixed on the outside of the guide rod; during operation, during the installation process, the connecting rod will slide in the card slot, and the sliding of the connecting rod will drive the guide rod to move, and the movement of the guide rod will drive the thimble to move. When the thimble moves to contact the storage capsule, the thimble will puncture the storage capsule, thereby causing the hot melt adhesive particles to scatter, and the scattered hot melt adhesive particles will drip between the connecting rod, the card slot, and the guide rod. After the installation is completed, it is necessary to manually heat the corrugated steel plate body externally, so that the hot melt adhesive particles will melt after the heat increases, and the melted hot melt adhesive particles will stick the connecting rod and the card slot together, further improving the installation strength while also sealing the gap between the connecting rod and the card slot, thereby preventing external air from entering the interior of the card slot to cause corrosion, and reducing the use strength of the corrugated steel plate body.

[0009] Preferably, a support rod is provided on one side of the guide rod close to the clamping rod, and the support rod is fixedly connected to the clamping rod; when working, the design of the support rod can support the guide rod, so that the guide rod has sufficient supporting force to support the ejector pin to puncture the storage bag during the sliding process, thereby preventing the friction between the ejector pin and the storage bag from pushing the guide rod to slide, resulting in the ejector pin being unable to be punctured.

[0010] Preferably, a push rod is provided on the outside of the slide slot and on the side of the support rod away from the guide rod, and the side of the push rod close to the slide slot is arc-shaped, the push rod is slidably connected to the clamping rod, and a support frame is fixed on the side of the push rod away from the slide slot, and a chamfered corner is provided on the outside of the guide rod; when working, after the guide rod drives the ejector pin to puncture the storage bag, the clamping rod continues to move and pushes the guide rod to move until it contacts the connecting hole. At this time, the employee needs to apply a large force to push the guide rod to push the support rod out so that the support rod no longer blocks the movement of the guide rod. After the support rod breaks, the external employee should be able to hear a crisp sound as a signal, and then continue to push The movable clamping rod moves, and the guide rod will slide inside the clamping rod until the guide rod contacts the top rod. Since the outside of the guide rod is provided with a chamfered corner, the side of the top rod close to the slide groove is arc-shaped, so the guide rod will push the top rod to slide in the direction away from the slide groove, and the sliding of the top rod will drive the support frame to move until the support frame contacts the inner wall of the clamping groove. At this time, the external employee can no longer push the clamping rod to move, thereby providing preliminary support between the two corrugated steel plate bodies. At this time, the employee can install the screw between the two corrugated steel plate bodies, thereby achieving the effect of facilitating the installation work. At the same time, the design of the support frame can also improve the sealing effect to a certain extent.

[0011] Preferably, a water storage bag is fixed inside the guide rod, quicklime is provided on the side of the water storage bag close to the clamping rod, a puncture needle is fixed on the side of the inner wall of the clamping slot close to the center of the corrugated steel plate body, and a through groove adapted to the puncture needle is provided inside the guide rod, and the through groove connects the water storage bag with the external air; during operation, when the guide rod moves to contact the connecting hole, the puncture needle will be completely immersed in the interior of the through groove and puncture the water storage bag, and the water storage bag will flow out after being punctured, thereby reacting with the quicklime. After the water storage bag reacts with quicklime, a certain degree of heat will be generated, thereby further accelerating the melting of the hot melt adhesive particles. In this process, the water storage bag and quicklime will react and generate gas at the same time. After the water storage bag reacts with quicklime, the generated gas is discharged through the gap between the through groove and the puncture needle. This gas will push the hot melt adhesive particles to slide along the gap between the clamping rod and the clamping slot, so that the melted hot melt adhesive particles can fully fill the gap between the clamping rod and the clamping slot, further improving the bonding effect.

[0012] Preferably, a waterproof membrane is fixed inside the through groove and at one end away from the water storage bag, and a water-soluble membrane is fixed between the water storage bag and the quicklime; during operation, the design of the waterproof membrane and the water-soluble membrane can effectively prevent moisture in the external air from affecting the quicklime and affecting its subsequent reaction quality. In the process of inserting the puncture needle into the through groove, the puncture needle will puncture the waterproof membrane at the same time, so as not to affect the puncture of the water storage bag by the puncture needle. After the water storage bag is punctured, the water-soluble membrane will first react with water and melt, thereby delaying the reaction process of water and quicklime. In this way, after the installation is completed, water and quicklime will not immediately react to spray gas, thereby leaving time for employees to install bolts between multiple corrugated steel plate bodies.

[0013] Preferably, a conductive rod is fixed inside the clamping rod and at one end away from the guide rod, and alarm contacts are fixed at both ends of the conductive rod, one of the alarm contacts is fixedly connected to the clamping rod, and the other alarm contact is fixedly connected to the corrugated steel plate body; during operation, during the use of the corrugated steel plate body, once external factors cause the corrugated steel plate body to be damaged, it means that there is a risk of tunnel collapse, and in the process of collapse, the connection between the corrugated steel plate body and the corrugated steel plate body will definitely be disconnected, thereby causing the conductive rod to break and the two alarm contacts to no longer be energized. By detecting the signal status of the alarm contact, the occurrence of the collapse can be detected, and it can be known which corrugated steel plate body has collapsed.

[0014] Preferably, a protective sleeve is sleeved on one end of the clamping rod away from the corrugated steel plate body; when in operation, the design of the protective sleeve can protect the clamping rod and its internal structure during the transportation and installation of the corrugated steel plate body.

[0015] Preferably, a plurality of elastic plates are provided inside the slide groove and on a side away from the guide rod, the elastic plates are fixedly connected to the clamping rod, and a knocking ball is fixed to one end of the elastic plate away from the clamping rod; during operation, in the process of pouring the corrugated steel plate support, concrete falls on the corrugated steel plate body, which will cause the corrugated steel plate body to shake, and the shaking of the corrugated steel plate body will drive the clamping rod inside it to shake. At this time, the knocking ball will collide with the clamping rod under the action of inertia force, thereby generating vibration, and this vibration is transmitted to the corrugated steel plate body, thereby driving the corrugated steel plate body to reciprocate and slightly vibrate the concrete, so that the concrete pouring effect is better.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The corrugated steel plate support structure used in the anchor-sprayed inverted vertical shaft described in the present invention increases the connectivity between multiple corrugated steel plate bodies through the design of the connecting rod and the card slot, thereby improving the effect of the corrugated steel plate in the support process, avoiding damage caused by excessive pressure on a single corrugation, and further improving the stability of the corrugated steel plate support.

[0018] 2. The corrugated steel plate support structure used in the anchor-sprayed inverted vertical shaft described in the present invention improves the connectivity between multiple corrugated steel plates by setting and melting hot-melt adhesive particles, thereby improving the overall support strength. It can also seal the gap between the connecting rod and the slot, thereby preventing external air from entering the interior of the slot and causing corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a perspective view of the present invention;

[0021] Figure 2 This is a partial cross-sectional view of the main structure of the corrugated steel plate of the present invention;

[0022] Figure 3 This invention Figure 2 A partial enlarged view of the middle A;

[0023] Figure 4 This is a structural diagram of a second embodiment of the clamping rod structure of the present invention;

[0024] Figure 5 This invention Figure 4 A partial enlarged view of point B in the middle.

[0025] In the figure: 1. Corrugated steel plate body; 2. Connecting hole; 3. Snap-in rod; 4. Card slot; 5. Guide rod; 6. Storage bag; 7. Puncture needle; 8. Through slot; 9. Support rod; 10. Ejector rod; 11. Support frame; 12. Water storage bag; 13. Quicklime; 14. Water-soluble film; 15. Waterproof film; 16. Alarm contact; 17. Conductive rod; 18. Protective cover; 19. Elastic plate; 20. Percussion ball; 21. Hot melt adhesive particles; 22. Ejector pin. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] Example 1

[0028] like Figures 1 to 2As shown, a corrugated steel plate support structure used in an anchor-sprayed inverted vertical shaft described in an embodiment of the present invention includes a corrugated steel plate main body 1, a plurality of connecting holes 2 are opened on the outside of the corrugated steel plate main body 1, a clamping rod 3 is fixed on the outside of the corrugated steel plate main body 1 and located at the crest of the wave, and a clamping groove 4 adapted to the clamping rod 3 is opened on the outside of the corrugated steel plate main body 1 and located on the side away from the clamping rod 3; when working, multiple corrugated steel plate main bodies 1 are spliced ​​together, and during the splicing process, the clamping rod 3 needs to be inserted into the clamping groove 4 corresponding to the previous corrugated steel plate main body 1, and then the multiple corrugated steel plate main bodies 1 are spliced ​​together through the connecting holes 2 and bolts. The design of the clamping rod 3 and the clamping groove 4 increases the connectivity between the multiple corrugated steel plate main bodies 1, thereby improving the effect of the corrugated steel plate in the support process, avoiding damage caused by excessive pressure on a single corrugation, and further improving the stability of the corrugated steel plate support.

[0029] like Figures 2 to 3 As shown, a sliding groove is provided inside the clamping rod 3, and a guide rod 5 is slidably connected inside the sliding groove, and a chamfer is provided on the end of the clamping rod 3 close to the guide rod 5; when working, the diameter of the guide rod 5 is smaller than the diameter of the clamping rod 3, thereby facilitating the positioning between the corrugated steel plate body 1 and the corrugated steel plate body 1 during the installation process, thereby facilitating the insertion of the clamping rod 3 into the clamping groove 4, and the setting of the chamfer on the outside of the clamping rod 3 further improves the smoothness of the installation and facilitates the installation.

[0030] like Figure 3 As shown, storage capsules 6 are fixed on the upper and lower sides of the inner wall of the card slot 4, and hot melt adhesive particles 21 are fixed inside the storage capsule 6. A thimble 22 adapted to the storage capsule 6 is fixed to the outside of the guide rod 5. When working, during the installation process, the connecting rod 3 will slide in the card slot 4, and the sliding of the connecting rod 3 will drive the guide rod 5 to move, and the movement of the guide rod 5 will drive the thimble 22 to move. When the thimble 22 moves to contact with the storage capsule 6, the thimble 22 will puncture the storage capsule 6, thereby scattering the hot melt adhesive particles 21, and the scattered hot melt adhesive particles 21 drip between the connecting rod 3, the card slot 4, and the guide rod 5. After the installation is completed, manual The corrugated steel plate body 1 is heated externally, so that the heat increases and the hot melt adhesive particles 21 melt. The melted hot melt adhesive particles 21 stick the clamping rod 3 and the clamping slot 4 together, further improving the installation strength. At the same time, the gap between the clamping rod 3 and the clamping slot 4 can also be sealed, thereby preventing external air from entering the interior of the clamping slot 4 to cause corrosion and reduce the use strength of the corrugated steel plate body 1. It should be noted that the hot melt adhesive particles 21 are hot melt adhesive, and its softening point is 85°C plus or minus no more than 5°C, the melting point temperature is 160-180°, the melt viscosity is: 8000CPs / 180°C, and the particle diameter is 0.1-2mm.

[0031] like Figure 3 As shown, a support rod 9 is provided on one side of the guide rod 5 close to the clamping rod 3, and the support rod 9 is fixedly connected to the clamping rod 3; when working, the support rod 9 is designed to support the guide rod 5, so that the guide rod 5 has sufficient supporting force to support the ejector pin 22 to puncture the storage capsule 6 during the sliding process, thereby preventing the friction between the ejector pin 22 and the storage capsule 6 from pushing the guide rod 5 to slide, resulting in the ejector pin 22 being unable to be punctured.

[0032] like Figure 3 As shown, a push rod 10 is provided on the outside of the slide and on the side of the support rod 9 away from the guide rod 5. The side of the push rod 10 close to the slide is arc-shaped. The push rod 10 is slidably connected with the clamping rod 3. A support frame 11 is fixed on the side of the push rod 10 away from the slide, and a chamfer is provided on the outside of the guide rod 5. During operation, after the guide rod 5 drives the ejector pin 22 to puncture the storage bag 6, the clamping rod 3 continues to move and pushes the guide rod 5 to move until it contacts the connecting hole 2. At this time, the employee needs to apply a large force to push the guide rod 5 to push the support rod 9 so that the support rod 9 no longer blocks the movement of the guide rod 5. After the support rod 9 breaks, the external employee should be able to hear a crisp sound as a signal, and then continue to push The movable clamping rod 3 moves, and at this time the guide rod 5 will slide inside the clamping rod 3 until the guide rod 5 contacts the top rod 10. Since the outside of the guide rod 5 is provided with a chamfered corner, the side of the top rod 10 close to the slide groove is arc-shaped, so that the guide rod 5 at this time will push the top rod 10 to slide in the direction away from the slide groove, and the slide of the top rod 10 will drive the support frame 11 to move until the support frame 11 contacts the inner wall of the clamping groove 4. At this time, the external staff can no longer push the clamping rod 3 to move, thereby providing preliminary support between the two corrugated steel plate bodies 1. At this time, the staff can install the screw between the two corrugated steel plate bodies 1, thereby achieving the effect of facilitating the installation work. At the same time, the design of the support frame 11 can also improve the sealing effect to a certain extent.

[0033] like Figure 3As shown, a water storage bag 12 is fixed inside the guide rod 5, and quicklime 13 is provided on the side of the water storage bag 12 close to the clamping rod 3. A puncture needle 7 is fixed on the side of the inner wall of the clamping slot 4 close to the center of the corrugated steel plate body 1. A through groove 8 adapted to the puncture needle 7 is opened inside the guide rod 5, and the through groove 8 connects the water storage bag 12 with the external air; when working, when the guide rod 5 moves to contact with the connecting hole 2, the puncture needle 7 will be completely immersed in the interior of the through groove 8 and puncture the water storage bag 12. After being punctured, the water storage bag 12 will flow out and react with the quicklime 13. After the water storage capsule 12 reacts with the quicklime 13, a certain degree of heat will be generated, thereby further accelerating the melting of the hot melt adhesive particles 21. In this process, the water storage capsule 12 and the quicklime 13 will react and generate gas at the same time. After the water storage capsule 12 reacts with the quicklime 13, when the generated gas is discharged, the gas is discharged through the gap between the through groove 8 and the puncture needle 7. This gas will push the hot melt adhesive particles 21 to slide along the gap between the clamping rod 3 and the clamping slot 4, so that the melted hot melt adhesive particles 21 fully fill the gap between the clamping rod 3 and the clamping slot 4, further improving the bonding effect.

[0034] like Figure 3 As shown, a waterproof membrane 15 is fixed inside the through groove 8 and at one end away from the water storage bag 12, and a water-soluble membrane 14 is fixed between the water storage bag 12 and the quicklime 13; during operation, the design of the waterproof membrane 15 and the water-soluble membrane 14 can effectively prevent moisture in the external air from affecting the quicklime 13 and affecting its subsequent reaction quality. In the process of inserting the puncture needle 7 into the through groove 8, the puncture needle 7 will puncture the waterproof membrane 15 at the same time, so as not to affect the puncture of the water storage bag 12 by the puncture needle 7. After the water storage bag 12 is punctured, the water-soluble membrane 14 will first react with water to melt, thereby delaying the reaction process of water and quicklime 13. In this way, after the installation is completed, water and quicklime 13 will not immediately react to spray gas, thereby leaving time for employees to install bolts between multiple corrugated steel plate bodies 1.

[0035] like Figure 3As shown, a conductive rod 17 is fixed inside the clamping rod 3 and at one end away from the guide rod 5, and alarm contacts 16 are fixed at both ends of the conductive rod 17, one of the alarm contacts 16 is fixedly connected to the clamping rod 3, and the other alarm contact 16 is fixedly connected to the corrugated steel plate body 1; during operation, during the use of the corrugated steel plate body 1, once external factors cause the corrugated steel plate body 1 to be damaged, it means that there is a risk of tunnel collapse, and in the process of collapse, the connection between the corrugated steel plate body 1 and the corrugated steel plate body 1 will definitely be disconnected, thereby causing the conductive rod 17 to break, so that the two alarm contacts 16 are no longer energized, and the signal state of the alarm contact 16 is detected by signal, so that the occurrence of the collapse can be known, and it can be known which corrugated steel plate body 1 has collapsed.

[0036] like Figure 2 As shown, the end of the clamping rod 3 away from the corrugated steel plate body 1 is sleeved with a protective sleeve 18; when in operation, the design of the protective sleeve 18 can protect the clamping rod 3 and its internal structure during the transportation and installation of the corrugated steel plate body 1.

[0037] Example 2

[0038] like Figures 4 and 5 As shown, compared with Example 1, another implementation of the present invention is: a plurality of elastic plates 19 are provided inside the slide groove and on one side away from the guide rod 5, the elastic plate 19 is fixedly connected to the clamping rod 3, and a knocking ball 20 is fixed on the end of the elastic plate 19 away from the clamping rod 3; during operation, in the process of pouring the corrugated steel plate support, concrete falls on the corrugated steel plate body 1, which will cause the corrugated steel plate body 1 to shake, and the shaking of the corrugated steel plate body 1 will drive the clamping rod 3 inside it to shake. At this time, the knocking ball 20 will collide with the clamping rod 3 under the action of inertia force, thereby generating vibration, and this vibration is transmitted to the corrugated steel plate body 1, thereby driving the corrugated steel plate body 1 to reciprocate and slightly vibrate the concrete, so that the concrete pouring effect is better.

[0039] Working principle: During the construction of a tunnel, when it is necessary to support the tunnel, multiple corrugated steel plate bodies 1 need to be spliced ​​together. During the splicing process, the connecting rod 3 needs to be inserted into the corresponding slot 4 of the previous corrugated steel plate body 1, and then the multiple corrugated steel plate bodies 1 are spliced ​​together through the connecting hole 2 and the bolt. The design of the connecting rod 3 and the slot 4 increases the connectivity between the multiple corrugated steel plate bodies 1, thereby improving the effect of the corrugated steel plate in the support process and further improving the stability of the corrugated steel plate support;

[0040] The diameter of the guide rod 5 is smaller than that of the clamping rod 3, which facilitates the positioning between the corrugated steel plate body 1 and the corrugated steel plate body 1 during installation, thereby facilitating the insertion of the clamping rod 3 into the clamping slot 4, and the setting of the external chamfer of the clamping rod 3 further improves the smoothness of installation and facilitates installation. During the installation process, the clamping rod 3 will slide in the clamping slot 4, and the sliding of the clamping rod 3 will drive the guide rod 5 to move, and the movement of the guide rod 5 will drive the movement of the ejector pin 22. When the ejector pin 22 moves to contact the storage capsule 6, the ejector pin 22 will puncture the storage capsule 6, thereby causing the hot melt adhesive particles 21 to scatter, and the scattered hot melt adhesive particles 21 will drip between the clamping rod 3, the clamping slot 4, and the guide rod 5. After the installation is completed, it is necessary to manually align the corrugated steel plate body 1 with the external The corrugated steel plate body 1 is heated, and the increased heat causes the hot melt adhesive particles 21 to melt. The melted hot melt adhesive particles 21 will stick the clamping rod 3 and the clamping slot 4 together, further improving the installation strength. At the same time, the gap between the clamping rod 3 and the clamping slot 4 can also be sealed, thereby preventing external air from entering the interior of the clamping slot 4 to cause corrosion and reduce the use strength of the corrugated steel plate body 1. It should be noted that the hot melt adhesive particles 21 are hot melt adhesive, and its softening point is 85°C plus or minus no more than 5°C, the melting point temperature is 160-180°C, the melt viscosity is 8000CPs / 180°C, and the particle diameter is 0.1-2mm. It should be noted that the corrugated steel plate used in this solution is poured together with the concrete after installation and will not be removed for use.

[0041] The design of the support rod 9 can support the guide rod 5, so that the guide rod 5 has sufficient supporting force to support the ejector pin 22 to puncture the storage capsule 6 during the sliding process, thereby preventing the friction between the ejector pin 22 and the storage capsule 6 from pushing the guide rod 5 to slide, resulting in the ejector pin 22 being unable to be punctured. After the guide rod 5 drives the ejector pin 22 to puncture the storage capsule 6, the continued movement of the clamping rod 3 will push the guide rod 5 to move until it contacts the connecting hole 2. At this time, the employee needs to apply a large force to push the guide rod 5 to push the support rod 9 so that the support rod 9 no longer blocks the movement of the guide rod 5. After the support rod 9 breaks, the external employee should be able to hear a crisp sound as a signal, and then continue to push When the clamping rod 3 moves, the guide rod 5 will slide inside the clamping rod 3 until the guide rod 5 contacts the push rod 10. Since the guide rod 5 is provided with a rounded corner on the outside, the push rod 10 is arc-shaped on the side close to the slide groove. Therefore, the guide rod 5 will push the push rod 10 to slide in the direction away from the slide groove. The push rod 10 slides and drives the support frame 11 to move until the support frame 11 contacts the inner wall of the clamping groove 4. At this time, the external staff can no longer push the clamping rod 3 to move, thereby providing preliminary support between the two corrugated steel plate bodies 1. At this time, the staff can install the screw between the two corrugated steel plate bodies 1, thus achieving the effect of facilitating the installation work. At the same time, the design of the support frame 11 can also improve the sealing effect to a certain extent.

[0042] When the guide rod 5 moves to contact the connecting hole 2, the puncture needle 7 will be completely immersed in the interior of the through groove 8 and puncture the water storage bag 12. After being punctured, the water storage bag 12 will flow out and react with the quicklime 13. After the water storage bag 12 reacts with the quicklime 13, a certain degree of heat will be generated, thereby further accelerating the melting of the hot melt adhesive particles 21. In this process, the water storage bag 12 reacts with the quicklime 13 and generates gas at the same time. After the water storage bag 12 reacts with the quicklime 13, the generated gas is discharged through the gap between the through groove 8 and the puncture needle 7. This gas will push the hot melt adhesive particles 21 to slide along the gap between the clamping rod 3 and the clamping slot 4, so that the melted hot melt adhesive particles 21 fully fill the gap between the clamping rod 3 and the clamping slot 4, further improving the bonding effect.

[0043] The design of the waterproof membrane 15 and the water-soluble membrane 14 can effectively prevent the moisture in the external air from affecting the quicklime 13 and affecting the subsequent reaction quality. In the process of the puncture needle 7 being inserted into the through groove 8, the puncture needle 7 will puncture the waterproof membrane 15 at the same time, so as not to affect the puncture of the water storage bag 12 by the puncture needle 7. After the water storage bag 12 is punctured, the water-soluble membrane 14 will first react with water to melt, thereby delaying the reaction process of water and quicklime 13. In this way, after the installation is completed, the water and quicklime 13 will not immediately react to spray gas, thereby leaving time for employees to install the screws between the multiple corrugated steel plate bodies 1. Bolt; During the use of the corrugated steel plate main body 1, once an external factor causes the corrugated steel plate main body 1 to be damaged, it indicates that there is a risk of tunnel collapse. During the collapse process, the connection between the corrugated steel plate main body 1 and the corrugated steel plate main body 1 will definitely be disconnected, thereby causing the conductive rod 17 to break and the two alarm contacts 16 to no longer be energized. By detecting the signal state of the alarm contact 16, the occurrence of the collapse can be detected, and it can be known which corrugated steel plate main body 1 has collapsed. The design of the protective cover 18 can protect the clamping rod 3 and its internal structure during the transportation and installation of the corrugated steel plate main body 1;

[0044] During the pouring process of the corrugated steel plate support, concrete falls on the corrugated steel plate main body 1, which will cause the corrugated steel plate main body 1 to shake. The shaking of the corrugated steel plate main body 1 will drive the clamping rod 3 inside it to shake. At this time, the knocking ball 20 will collide with the clamping rod 3 under the action of inertia force, thereby generating vibration. This vibration is transmitted to the corrugated steel plate main body 1, thereby driving the corrugated steel plate main body 1 to reciprocate and slightly vibrate the concrete, making the concrete pouring effect better.

[0045] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0047] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrugated steel plate support structure used in an inverted vertical shaft of shotcrete anchoring, characterized by: The corrugated steel plate body (1) comprises a plurality of connecting holes (2) formed on the outside of the corrugated steel plate body (1), a clamping rod (3) fixed on the outside of the corrugated steel plate body (1) and located at the crest of the wave, and a clamping groove (4) adapted to the clamping rod (3) formed on the outside of the corrugated steel plate body (1) and located on a side away from the clamping rod (3); A sliding groove is provided inside the clamping rod (3), and a guide rod (5) is slidably connected inside the sliding groove. An end of the clamping rod (3) close to the guide rod (5) is provided with a chamfer; Storage capsules (6) are fixed to the upper and lower sides of the inner wall of the card slot (4), hot melt adhesive particles (21) are fixed inside the storage capsule (6), and a thimble (22) adapted to the storage capsule (6) is fixed outside the guide rod (5); A water storage bag (12) is fixed inside the guide rod (5), quicklime (13) is provided on the side of the water storage bag (12) close to the clamping rod (3), a puncture needle (7) is fixed on the inner wall of the clamping slot (4) close to the center of the corrugated steel plate body (1), and a through groove (8) adapted to the puncture needle (7) is provided inside the guide rod (5), and the through groove (8) connects the water storage bag (12) with the external air; A waterproof membrane (15) is fixed inside the through groove (8) and at one end away from the water storage bag (12), and a water-soluble membrane (14) is fixed between the water storage bag (12) and the quicklime (13).

2. The corrugated steel plate support structure used in an inverted vertical shaft of shotcrete according to claim 1, characterized in that: A support rod (9) is provided on one side of the guide rod (5) close to the clamping rod (3), and the support rod (9) is fixedly connected to the clamping rod (3).

3. The corrugated steel plate support structure used in an inverted vertical shaft of shotcrete according to claim 2, characterized in that: A push rod (10) is provided outside the slide groove and on the side of the support rod (9) away from the guide rod (5). The side of the push rod (10) close to the slide groove is arc-shaped. The push rod (10) is slidably connected to the clamping rod (3). A support frame (11) is fixed to the side of the push rod (10) away from the slide groove. The outside of the guide rod (5) is provided with a rounded corner.

4. The corrugated steel plate support structure used in an inverted vertical shaft of shotcrete according to claim 1, characterized in that: A conductive rod (17) is fixed inside the clamping rod (3) and at one end away from the guide rod (5), and alarm contacts (16) are fixed at both ends of the conductive rod (17), one of the alarm contacts (16) is fixedly connected to the clamping rod (3), and the other alarm contact (16) is fixedly connected to the corrugated steel plate body (1).

5. The corrugated steel plate support structure used in an inverted vertical shaft of shotcrete according to claim 1, characterized in that: One end of the clamping rod (3) away from the corrugated steel plate body (1) is sleeved with a protective sleeve (18).

6. The corrugated steel plate support structure used in an inverted vertical shaft of shotcrete according to claim 1, characterized in that: A plurality of elastic plates (19) are provided inside the slide groove and on a side away from the guide rod (5). The elastic plates (19) are fixedly connected to the clamping rod (3). A knocking ball (20) is fixed to one end of the elastic plate (19) away from the clamping rod (3).

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