Multifunctional gob-side entry retaining gangue blocking equipment and application method

Abstract

The invention discloses multifunctional gob-side entry retaining waste rock blocking equipment and an application method, solves the problem that a waste rock blocking support and a concrete wall mold are two independent devices in the prior art, and has the beneficial effect that a waste rock blocking mechanism and a concrete wall forming mold used for concrete wall forming are integrated in the same device. According to the specific scheme, the multifunctional gob-side entry retaining gangue blocking equipment comprises a base, the base can be connected with a movable vehicle body and is provided with a supporting column, the supporting column supports a top supporting plate to support the top of a roadway, a gangue blocking mechanism is arranged on one side of the base and is arranged in the length direction of the roadway, and a lateral pushing mechanism is arranged on the other side of the base; the lateral pushing mechanism is connected with the concrete wall forming mold to push the concrete wall forming mold to move in the width direction of the roadway, one side of the concrete wall forming mold supports the drilling tool to drill a roadway top plate, and the drilling tool is located between the concrete wall forming mold and the back shore plate and can move in the length direction of the roadway relative to the concrete wall forming mold. The concrete wall forming mold comprises a plurality of mold plates forming a frame-shaped component.

Description

Technical Field

[0001] The invention relates to the field of rock-blocking equipment, in particular to multifunctional rock-blocking equipment for gob-side lane retention and an application method thereof. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, the coal pillar-free mining along the goaf is to arrange the gangue support behind the working face. The gangue support isolates the gangue in the goaf and ensures the safety of personnel. On the goaf side, a concrete wall is cast at a certain distance from the gangue support. At this time, the concrete wall and the original roadway form the roadway of the next working face. The concrete wall replaces the original coal pillar, which greatly improves the recovery rate of coal resources. However, in the prior art, the gangue support and the concrete wall mold are two separate devices, and the two devices are operated separately. The concrete wall pouring construction process is cumbersome, the work efficiency is low, and the recovery speed of the working face is affected. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a multifunctional gangue-blocking equipment for retaining lanes along the goaf. While playing the role of gangue blocking, the equipment can also realize the pouring of concrete walls, which can greatly improve work efficiency. The equipment also has the functions of monitoring the stress and displacement of the roof, the stress of the concrete wall, and realizing the drilling of the roof, so as to better serve the coal pillar-free mining of the lanes retained along the goaf.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A multifunctional rock-blocking device for retaining goafs in tunnels includes a base, which can be connected to a mobile vehicle body. The base is provided with support columns, which support top support plates to support the top of the tunnel. A rock-blocking mechanism is provided on one side of the base, which is arranged along the length direction of the tunnel. A lateral pushing mechanism is provided on the other side of the base, which is connected to a concrete wall forming mold to push the concrete wall forming mold to move along the width direction of the tunnel. One side of the concrete wall forming mold supports a drilling tool to drill holes in the tunnel top plate. The drilling tool is located between the concrete wall forming mold and the top support plate. The drilling tool can move along the length direction of the tunnel relative to the concrete wall forming mold. The concrete wall forming mold is provided with an opening to insert a grouting pipe. The concrete wall forming mold includes multiple templates that constitute a frame-type component. Adjacent templates can be detachably connected to remove the concrete wall forming mold after the previous section of concrete wall is formed. After the base moves a set distance, the concrete wall forming mold is assembled to form the next section of concrete wall.

[0007] As described above, the multifunctional rock-blocking equipment for retaining goafs along the tunnel, the concrete wall forming mold comprises a first template, a second template, a third template and a fourth template connected in sequence, the first template is connected to the drilling tool, the inner surfaces of the second template and the fourth template are provided with tenons or mortise grooves to achieve a snap-fit ​​connection with the first template and the third template, so that the first template is connected to the lateral pushing mechanism, and the templates are snap-fitted and connected with each other to ensure the stability of the setting of the concrete wall forming mold.

[0008] As described above, the multifunctional gob-side tunnel retaining and rock-blocking equipment, a transverse track is provided on the side of the first template away from the third template, a track connecting plate is fixedly or detachably installed on the transverse track, the drilling tool is fixedly installed on the track connecting plate, and the track connecting plate is pushed along the transverse track to realize the movement of the drilling tool;

[0009] There are multiple transverse tracks, and a longitudinal track is also arranged on the side of the first template away from the third template. The transverse track is arranged outside the longitudinal track and there is a distance between the transverse track and the longitudinal track, and the longitudinal track and the transverse track form a grid structure.

[0010] As described above, the multifunctional gob-side tunnel retaining rock-blocking equipment has a plurality of collars at one end of the track connecting plate, the collars are sleeved on the transverse track, and the collars and the transverse track are interference fit;

[0011] The collar is an openable clamping member, and the inner diameter of the collar is matched with the outer diameter of the transverse track. After the collar is opened, the track connecting plate can be installed at the transverse track at a suitable height according to requirements.

[0012] As described above, the multifunctional gob-side tunnel retaining and rock-blocking equipment, the top of the concrete wall forming mold is provided with a roof stress monitoring element and a roof displacement monitoring element, and the inner surface of the concrete wall forming mold is provided with a concrete wall stress monitoring element;

[0013] The roof stress monitoring element, the roof displacement monitoring element and the concrete wall stress monitoring element are separately connected to the controller, which can monitor the stress and displacement of the tunnel roof and monitor the pressure of the formed concrete wall on the concrete wall forming mold.

[0014] As described above, in the multifunctional gob-side tunnel retaining and rock-blocking equipment, a pendulum is arranged on the side of the concrete wall forming mold to obtain the verticality of the concrete wall forming mold.

[0015] As described above, the multifunctional gob-retaining rock-blocking equipment along the gob, the rock-blocking mechanism includes multiple rock-blocking plates, the height of the rock-blocking plates is higher than the base, one of the rock-blocking plates is connected to the base, and a sliding track is arranged between two adjacent rock-blocking plates to realize the sliding of the rock-blocking plate relative to the other rock-blocking plate to extend the length of the rock-blocking mechanism.

[0016] The multifunctional gob-side tunnel retaining and rock-blocking equipment as described above, wherein the lateral pushing mechanism comprises a multi-stage pushing rod, the fixed end of the multi-stage pushing rod is connected to the side of the base, and the telescopic end of the multi-stage pushing rod is connected to the concrete wall forming mold;

[0017] The base is provided with a connecting ear on one side for connecting with the moving vehicle body. The connecting ear and the moving vehicle body can be connected via a connecting shaft. The moving vehicle body can be a vehicle body for a lane.

[0018] As described above, the multifunctional gob-side tunnel retaining rock-blocking equipment has an adjustable height of the support column, which includes a plurality of support columns, the fixed ends of which are fixed to the base, and the telescopic ends of which are connected to the top support plate.

[0019] In a second aspect, the present invention also provides an application method of a multifunctional gob-side tunnel retaining device, including the following contents:

[0020] A rock blocking mechanism is arranged on one side of the base, and the other side of the base is connected to the concrete wall forming mold through a lateral pushing mechanism;

[0021] The base is connected to the mobile vehicle body;

[0022] The mobile vehicle body drives the base to move to the position where the tunnel roof needs to be drilled, the top support plate supports the top of the tunnel, and the rock blocking mechanism is located on the side of the base to play a role in rock blocking;

[0023] The lateral pushing mechanism extends to push the concrete wall forming mold to a set position, the top of the concrete wall forming mold contacts the tunnel roof, the concrete wall forming mold is provided with an opening, and the grouting pipe is inserted into the concrete wall forming mold from the opening to form a concrete wall;

[0024] The drilling tool drills holes in the tunnel roof, and the drilling tool moves along the concrete wall forming mold to drill multiple holes along the length of the tunnel;

[0025] After a concrete wall is formed, the concrete wall forming mold is removed, and the mobile vehicle body drives the base to move a set distance and then assembles the concrete wall forming mold to carry out the forming work of the next section of concrete wall.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1) In the present invention, the base can be connected to the mobile vehicle body, and the base is provided with a rock blocking mechanism. The lateral pushing mechanism can push the concrete wall forming mold to move along the width direction of the tunnel. The concrete wall can be poured through the concrete wall forming mold, and the rock blocking mechanism can effectively block the rock. The concrete wall forming mold and the rock blocking mechanism are effectively integrated and arranged in the same device, so that the whole equipment can realize the pouring of the concrete wall while playing the role of rock blocking, and realize the construction as you go, which greatly improves the work efficiency.

[0028] 2) The concrete wall forming mold in the present invention includes multiple templates, and the adjacent templates are connected by a tenon or mortise structure, which not only ensures the stable connection between the concrete wall forming mold and the lateral pushing mechanism, but also facilitates the rapid assembly and disassembly of the concrete wall forming mold.

[0029] 3) In the present invention, a transverse track is set on one side of the first template, and the track connecting plate is fixedly or detachably installed on the transverse track. The track connecting plate is pushed along the transverse track to realize the movement of the drilling tool, so that when the entire movement stops at the set position, the drilling tool can be pushed to drill multiple holes in the tunnel roof along the length direction of the tunnel.

[0030] 4) The concrete wall forming mold in the present invention is provided with a top plate stress monitoring element, a top plate displacement monitoring element and a concrete wall stress monitoring element, which can monitor the stress and displacement of the tunnel top plate to ensure the safety of the equipment during operation, and can also monitor the pressure of the formed concrete wall on the concrete wall forming mold, which is beneficial to the monitoring of the concrete wall forming quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0032] Figure 1 It is a schematic diagram of a multifunctional gob-side tunnel retaining rock retaining device according to one or more embodiments of the present invention.

[0033] Figure 2 It is a top view of the rock retaining mechanism of the multifunctional rock retaining equipment along the goaf according to one or more embodiments of the present invention.

[0034] Figure 3 It is a schematic diagram of the first template in the multifunctional gob-side tunnel retaining and rock-blocking equipment according to one or more embodiments of the present invention.

[0035] Figure 4 It is a schematic diagram of the fourth template in the multifunctional gob-side tunnel retaining and rock-blocking equipment according to one or more embodiments of the present invention.

[0036] Figure 5 It is a schematic diagram of the second template in the multifunctional gob-side tunnel retaining and rock-blocking equipment according to one or more embodiments of the present invention.

[0037] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0038] Among them: 1-1. Top support plate, 1-2. Support column, 1-3. Base, 1-4. Multi-stage propulsion rod, 1-5. Drilling tool, 1-6. Hydraulic motor, 1-7. Track connecting plate, 1-8. Pendulum, 1-9. Top plate stress monitoring element, 1-10. Top plate displacement monitoring element, 1-11. Concrete wall stress monitoring element, 1-12. Control box, 1-13. Ring, 1-14. Horizontal track, 1-15. Longitudinal track;

[0039] 2. Gob blocking mechanism, 2-1. Gob blocking plate;

[0040] 3. Concrete wall forming mold, 3-1. First template, 3-2. Second template, 3-3. Third template, 3-4. Fourth template;

[0041] 4-1. Mortise and tenon, 4-2. Tenon. DETAILED DESCRIPTION

[0042] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0044] As introduced in the background technology, in the prior art, the rock retaining support and the concrete wall mold are two separate devices. In order to solve the above technical problem, the present invention proposes a multifunctional rock retaining device along the goaf.

[0045] Embodiment 1

[0046] In a typical embodiment of the present invention, reference is made to Figure 1As shown, a multifunctional rock-blocking device for retaining gob-side lanes comprises a base 1-3, the base 1-3 can be connected to a mobile vehicle body, a support column 1-2 is arranged on the base, the support column supports a top support plate 1-1 to support the top of the lane, a rock-blocking mechanism 2 is arranged on one side of the base 1-3, the rock-blocking mechanism 2 is arranged along the length direction of the lane, a lateral pushing mechanism is arranged on the other side of the base 1-3, the lateral pushing mechanism is connected to a concrete wall forming mold 4 to push the concrete wall forming mold 4 to move along the width direction of the lane, and one side of the concrete wall forming mold 4 The side support drill is used to drill holes in the tunnel roof. The drill 1-5 is located between the top support plate 1-1 and the concrete wall forming mold 4. The drill 1-5 can move along the length of the tunnel relative to the concrete wall forming mold. The concrete wall forming mold is provided with an opening to insert a grouting pipe. The concrete wall forming mold includes a plurality of templates constituting a frame-type component. The adjacent templates are detachably connected to remove the concrete wall forming mold after the previous section of the concrete wall is formed. After the base moves a set distance, the concrete wall forming mold is assembled to carry out the forming work of the next section of the concrete wall.

[0047] It is easy to understand that the base 1-3 has a set length, width and height. Two connecting ears are set on one side of the base 1-3 for connecting to the mobile body. The two connecting ears are set at a distance. The connecting ears are set with openings. The connecting ears can be connected to the mobile body through a connecting shaft. The mobile body can be an existing tunnel body.

[0048] It should be noted that the lateral pushing mechanism specifically includes two multi-stage pushing rods 1-4, and the two multi-stage pushing rods 1-4 are set at a distance. The multi-stage pushing rod can be a hydraulic pushing rod or an electric telescopic rod. The fixed end of the multi-stage pushing rod is connected to the side of the base, and the telescopic end of the multi-stage pushing rod is connected to one side of the concrete wall forming mold.

[0049] refer to Figure 1 As shown, a top plate stress monitoring element 1-9 and a top plate displacement monitoring element 1-10 are arranged on the top of the concrete wall forming mold 3 (specifically, the third template), the top plate stress monitoring element can be a pressure sensor, the top plate displacement monitoring element can be an existing ultrasonic ranging sensor, a groove is arranged on the top of the third template, and the top plate displacement monitoring element is arranged in the groove to obtain the displacement information of the tunnel top plate, and a concrete wall stress monitoring element 1-11 is arranged on the inner surface of the concrete wall forming mold, and the concrete wall stress monitoring element can select a pressure sensor, which can be arranged on the inner side of the third template;

[0050] It is easy to understand that the top plate stress monitoring element, the top plate displacement monitoring element and the concrete wall stress monitoring element are separately connected to the controller, which can realize the monitoring of the top plate stress and displacement, and can also realize the pressure monitoring of the formed concrete wall on the concrete wall forming mold.

[0051] Among them, the controller can be a PLC controller or other types of controllers. The controller is separately connected to the lateral pushing mechanism, the support column 1-2, and the drilling tool 1-5 to control the respective actions of each structural member. The controller is arranged in the control box, and the control box 1-12 is arranged on the outside of the third template. Of course, in other examples, the controller can also be integrated with the controller of the mobile body.

[0052] In addition, a pendulum 1-8 is set on the side of the concrete wall forming mold to obtain the verticality of the concrete wall forming mold. The pendulum can be specifically set on the outside of the third template. The pendulum includes a support plate fixed to the third template, a connecting rope is connected to the support plate, and the bottom end of the connecting rope is connected to the gravity ball.

[0053] In this embodiment, reference Figure 2 As shown, the height of the support column 1-2 is adjustable to prevent the top support plate from contacting the tunnel roof during the movement of the mobile vehicle body. The support column 1-2 includes multiple columns, each of which can be tilted outward, and the fixed ends of the multiple support columns are fixed to the base, and the telescopic ends of the support columns are connected to the top support plate. The support columns are specifically hydraulic cylinder components, which can effectively support the tunnel roof load and adjust the height of the support columns to give full play to the bearing capacity of the support columns.

[0054] It should be noted that the debris baffle mechanism 2 includes a plurality of debris baffle plates 2-1, the height of the debris baffle plates is higher than the base, one of the debris baffle plates is connected to the base, and a sliding track is arranged between two adjacent debris baffle plates to realize the sliding of the debris baffle plate relative to the other debris baffle plate to extend the length of the debris baffle mechanism. Specifically, the inner debris baffle plate of the two adjacent debris baffle plates is provided with a sliding track, the inner debris baffle plate can be provided with a slide groove, a guide rail is arranged in the slide groove, and the outer debris baffle plate is provided with a slider, and the slider can be moved along the slide groove. Move along the guide rail so that the outer rock baffle plate can slide relative to the inner rock baffle plate. When the rock baffle mechanism is fixed at a specified position, the multi-section sliding rock baffle plate 2-1 can be pushed to slide for a wide range of rock baffles. When the multi-section rock baffle plate is unfolded to the maximum, the coverage length of the rock baffle mechanism is greater than the length of the base. The top support plate supports the top plate of the tunnel and transmits pressure. The length of the top support plate is greater than or equal to the length of the base, and the width of the top support plate is greater than or equal to the width of the base.

[0055] It is easy to understand that the concrete wall forming mold 3 includes a first template 3-1, a second template 3-2, a third template 3-3 and a fourth template 3-4 connected in sequence, the first template is connected to the drill bit, and the inner surfaces of the second and fourth templates are provided with tenons or mortise grooves to achieve a snap-fit ​​connection with the first and third templates. In this way, the first template is connected to the lateral pushing mechanism, and the templates are snap-fitted to each other to ensure the stability of the setting of the concrete wall forming mold.

[0056] Moreover, the first template and the third template are parallel to each other, and the second template and the fourth template are parallel to each other. Figure 4 and Figure 5 As shown, the second template is provided with two mortises on the inner side of the fourth template, and the fourth template is provided with two tenons on the inner side of the second template. Figure 3 As shown, a tenon is provided on one side of the first template and the third template to engage with the tenon groove of the fourth template, and a tenon groove is provided on the other side to engage with the tenon of the second template.

[0057] In this embodiment, the first template can be a steel plate. Figure 3 As shown, a longitudinal track is further provided on the side of the first template away from the third template, a transverse track is provided on the outer side of the longitudinal track, and the longitudinal track and the transverse track are set at a distance, a plurality of transverse tracks are provided, and the longitudinal track and the transverse track form a grid structure, a transverse track is provided on the side of the first template away from the third template, a track connecting plate is fixedly installed or detachably installed on the transverse track, the track connecting plate and the first template can be vertically arranged, the drilling tool is fixedly installed on the track connecting plate, and the track connecting plate is pushed along the transverse track to realize the movement of the drilling tool.

[0058] It is easy to understand that the transverse track and the longitudinal track can be steel bars respectively, the steel bars are fixed to the outside of the steel plate, and the two sides of the transverse track are bent so that the transverse track and the longitudinal track are spaced apart.

[0059] In this embodiment, a plurality of collars 1-13 are provided at one end of the track connection plate, and the collars are sleeved on the transverse track, and the collars and the transverse track have an interference fit, and the collars can be welded to the transverse track to ensure that the track connection plate is stably supported by the transverse track;

[0060] In other examples, the collar is an openable clamping member, and the inner diameter of the collar is matched with the outer diameter of the transverse rail 1-14. After the collar is opened, the track connecting plate can be installed on the transverse rail at a suitable height as required. After the collar is fixed, the track connecting plate can be stably fixed on the transverse rail.

[0061] The lateral propulsion mechanism is fixedly connected to the outer side of the first template, and the telescopic end of the lateral propulsion mechanism passes through a grid in the grid structure and is fixedly connected to the first template.

[0062] In some examples, the drilling tool can be a hydraulic motor drilling tool, which specifically includes a hydraulic motor connected to a reducer. The hydraulic motor provides power, and the reducer transmits the power to the drilling tool, so that the drilling tool rotates to drill holes. The drilling tool adopts the drilling tool for hydraulic motor drilling tools in the prior art. The hydraulic motor drilling tool also includes a hydraulic system for providing power to the drilling tool and a cooling water system for cooling the drilling tool. The hydraulic motor drilling tool can be used to drill holes in the roof, achieve dense drilling pressure relief, or serve as a top cutting pressure relief blast hole.

[0063] Of course, it is easy to understand that the hydraulic motor drilling tool can also be replaced by other types of drilling tools.

[0064] The equipment provided in this embodiment has a base that can be connected to a mobile vehicle body. The base is provided with a rock-blocking mechanism, and is also connected to a concrete wall forming mold through a lateral pushing mechanism to push the concrete wall forming mold to move along the width direction of the tunnel. Concrete walls can be poured through the concrete wall forming mold, and rock-blocking mechanism can effectively block rock. The concrete wall forming mold and the rock-blocking mechanism are effectively integrated in the same equipment, so that the entire equipment can realize the pouring of concrete walls while playing the role of rock-blocking, and can achieve construction as you go, thereby greatly improving work efficiency.

[0065] Embodiment 2

[0066] This embodiment discloses an application method of a multifunctional gob-side tunnel retaining device, including the following contents:

[0067] A rock blocking mechanism 2 is provided on one side of the base 1-3, and the other side of the base is connected to the concrete wall forming mold through a lateral push mechanism;

[0068] The base 1-3 is connected to the mobile vehicle body;

[0069] The mobile vehicle body drives the base to move to the position where the tunnel roof needs to be drilled, the top support plate 1-1 supports the top of the tunnel, and the rock blocking mechanism 2 is located on the side of the base to play a role in rock blocking;

[0070] The lateral pushing mechanism extends to push the concrete wall forming mold 3 to the set position, the top of the concrete wall forming mold 3 contacts the tunnel roof, the concrete wall forming mold 3 is provided with an opening, and the grouting pipe is inserted into the concrete wall forming mold from the opening to form a concrete wall;

[0071] The drilling tools 1-5 drill holes in the tunnel roof, and the drilling tools move along the concrete wall forming mold to drill multiple holes along the length of the tunnel;

[0072] After a concrete wall is formed, the concrete wall forming mold is removed, and the mobile vehicle body drives the base to move a set distance and then assembles the concrete wall forming mold to carry out the forming work of the next section of concrete wall.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. 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. Multifunctional gob-side tunnel retaining equipment, characterized by: The utility model comprises a base, which can be connected to a mobile vehicle body, and a support column is arranged on the base, and the support column supports a top support plate to support the top of the tunnel, and a rock-blocking mechanism is arranged on one side of the base, and the rock-blocking mechanism is arranged along the length direction of the tunnel, and a lateral pushing mechanism is arranged on the other side of the base, and the lateral pushing mechanism is connected to a concrete wall forming mold to push the concrete wall forming mold to move along the width direction of the tunnel, and one side of the concrete wall forming mold supports a drilling tool to drill holes in the top plate of the tunnel, and the drilling tool is located between the concrete wall forming mold and the top support plate, and the drilling tool can move along the length direction of the tunnel relative to the concrete wall forming mold, and the concrete wall forming mold is provided with an opening to insert a grouting pipe, and the concrete wall forming mold comprises a plurality of templates constituting a frame-type component, and two adjacent templates are detachably connected so that the concrete wall forming mold can be removed after the previous section of concrete wall is formed, and the concrete wall forming mold is assembled after the base moves a set distance to form the next section of concrete wall.

2. The multifunctional gob-side entry retaining device according to claim 1 is characterized in that: The concrete wall forming mold includes a first template, a second template, a third template and a fourth template which are connected in sequence. The first template is connected to the drilling tool. The inner surfaces of the second template and the fourth template are provided with tenons or mortise grooves to achieve a snap-fit ​​connection with the first template and the third template.

3. The multifunctional gob-side entry retaining device according to claim 2 is characterized in that: A transverse track is provided on a side of the first template away from the third template, a track connecting plate is fixedly or detachably installed on the transverse track, and the drilling tool is fixedly installed on the track connecting plate; There are multiple transverse tracks, and a longitudinal track is also arranged on the side of the first template away from the third template. The transverse track is arranged outside the longitudinal track and there is a distance between the transverse track and the longitudinal track, and the longitudinal track and the transverse track form a grid structure.

4. The multifunctional gob-side entry retaining device according to claim 3 is characterized in that: A plurality of collars are arranged at one end of the track connection plate, and the collars are sleeved on the transverse track, and the collars and the transverse track are interference fit; The collar is an openable hoop component.

5. The multifunctional gob-side entry retaining device according to claim 1 is characterized in that: A top plate stress monitoring element and a top plate displacement monitoring element are arranged on the top of the concrete wall forming mold, and a concrete wall stress monitoring element is arranged on the inner surface of the concrete wall forming mold; The top plate stress monitoring element, the top plate displacement monitoring element and the concrete wall stress monitoring element are connected to the controller separately.

6. The multifunctional gob-side entry retaining device according to claim 1 is characterized in that: A pendulum is arranged on the side of the concrete wall forming mold to obtain the verticality of the concrete wall forming mold.

7. The multifunctional gob-side entry retaining device according to claim 1 is characterized in that: The rock baffle mechanism includes multiple rock baffle plates, the height of which is higher than the base. One of the rock baffle plates is connected to the base, and a sliding track is arranged between two adjacent rock baffle plates to realize the sliding of the rock baffle plate relative to another rock baffle plate to extend the length of the rock baffle mechanism.

8. The multifunctional gob-side entry retaining device according to claim 1 is characterized in that: The lateral pushing mechanism includes a multi-stage pushing rod, the fixed end of the multi-stage pushing rod is connected to the side of the base, and the telescopic end of the multi-stage pushing rod is connected to the concrete wall forming mold; A connecting ear is arranged on one side of the base for connecting with the mobile vehicle body.

9. The multifunctional gob-side entry retaining rock-blocking equipment according to claim 1 is characterized in that: The height of the support column is adjustable, and the support column comprises a plurality of support columns, the fixed ends of the plurality of support columns are fixed to the base, and the telescopic ends of the support columns are connected to the top support plate.

10. The application method of the multifunctional gob-side entry retaining device according to any one of claims 1 to 9, characterized in that: It includes the following: A rock blocking mechanism is arranged on one side of the base, and the other side of the base is connected to the concrete wall forming mold through a lateral pushing mechanism; The base is connected to the mobile vehicle body; The mobile vehicle body drives the base to move to the position where the tunnel roof needs to be drilled, the top support plate supports the top of the tunnel, and the rock blocking mechanism is located on the side of the base to play a role in rock blocking; The lateral pushing mechanism extends to push the concrete wall forming mold to a set position, the top of the concrete wall forming mold contacts the tunnel roof, the concrete wall forming mold is provided with an opening, and the grouting pipe is inserted into the concrete wall forming mold from the opening to form a concrete wall; The drilling tool drills holes in the tunnel roof, and the drilling tool moves along the concrete wall forming mold to drill multiple holes along the length of the tunnel; After a concrete wall is formed, the concrete wall forming mold is removed, and the mobile vehicle body drives the base to move a set distance and then assembles the concrete wall forming mold to carry out the forming work of the next section of concrete wall.

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