Tunnel supporting device

Abstract

The utility model discloses a tunnel supporting device which comprises a support provided with an arc-shaped supporting face. The anchor rod supporting mechanisms are arranged in an equidistant array mode in the circumferential direction of the arc-shaped supporting face, each anchor rod supporting mechanism comprises a grouting anchor rod, a supporting plate, a connecting rod and a hydraulic module, one end of each grouting anchor rod is inserted into the tunnel lining, and the other end of each grouting anchor rod is exposed out of the tunnel lining; the supporting plate is in threaded connection with the grouting anchor rod, the supporting plate is attached to the tunnel lining, and a pressure sensor is arranged on the supporting plate and used for obtaining supporting force when the tunnel lining is supported; and one end of the hydraulic module is arranged on the arc-shaped supporting surface. Therefore, it can be guaranteed that the tunnel lining has reasonable supporting force, potential safety hazards caused by insufficient or overlarge supporting force are effectively avoided, the supporting pressure of different areas can be controlled, segmented pressurization and reinforcement are achieved, local deformation of a tunnel is prevented, and a solid guarantee is provided for safe and stable construction of tunnel engineering.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field especially relates to a tunnel support device. BACKGROUND

[0002] In the soft surrounding rock tunnel construction, the tunnel pre-reinforcement can effectively control the surrounding rock displacement, prevent the collapse caused by the excessive deformation of surrounding rock, and make the secondary lining better bear the subsequent load. For the special areas such as the portal section, the shallow buried section and the loose and broken surrounding rock section, the conventional waiting time of the stable surrounding rock is too long, which will delay the construction period. The pre-reinforcement can make these areas reach the conditions of secondary lining construction in a short time, speed up the construction progress, improve the construction efficiency, and avoid the cost increase caused by the delay of construction period. In addition, the unstable surrounding rock is easy to cause safety accidents such as collapse and falling, which threatens the life safety of construction personnel. The pre-reinforcement can also improve the surrounding rock condition, enhance the bearing capacity, and reduce the accident probability, to create a safe working environment for construction personnel.

[0003] The conventional technical scheme often adopts the pre-reinforcement mode of the anchor rod to the tunnel wall. However, when the anchor rod supports the tunnel wall, the supporting degree often depends on the manual control of the rod body by the construction personnel. The construction personnel mainly rely on their own experience to roughly estimate the stress condition to perform the supporting operation. This method is easy to cause the uneven reinforcement, and further causes the safety problems.

[0004] In addition, the geological conditions of the tunnel construction area are complex and changeable, and the strength of different areas often exists difference due to the factors such as rock fissure and uneven soil distribution. Under this condition, the unevenness of the conventional reinforcement mode is further highlighted, which further easily causes the deformation of the local tunnel, and affects the safety and stable construction of the tunnel. TECHNICAL PROBLEM

[0005] The utility model aims at solving at least one of the technical problems in the related art to some extent.

[0006] To achieve the above purpose, the utility model provides a tunnel support device, which can not only ensure the reasonable supporting degree of the tunnel lining, effectively avoid the safety hazards caused by insufficient or excessive supporting force, but also control the supporting pressure of different areas, realize the segmented pressure and reinforcement, prevent the deformation of the local tunnel, and provide a solid guarantee for the safety and stable construction of the tunnel engineering.

[0007] To this end, one purpose of the utility model lies in providing a tunnel support device, including support, with arc support surface, a plurality of anchor rod support mechanism, along the arc support surface circumference equidistance array arrangement, the anchor rod support mechanism includes grouting anchor rod, support plate, connecting rod and hydraulic module, wherein, one end of grouting anchor rod is inserted into tunnel lining, the other end of grouting anchor rod is exposed outside tunnel lining outside, the support plate is screwed on grouting anchor rod, the support plate is attached to tunnel lining, pressure sensor is provided on the support plate to obtain the support force when supporting tunnel lining,

[0008] One end of the hydraulic module is arranged on the arc support surface, the hydraulic module is connected with the grouting anchor rod through the connecting rod, the hydraulic module is configured to be able to apply axial thrust to the grouting anchor rod through the connecting rod, and in turn drive the support plate to apply extrusion force to the surface of the tunnel lining, and the hydraulic module and the pressure sensor are connected with a terminal device.

[0009] The tunnel support device can control the hydraulic module to adjust the size of the support force according to the data information about the support force of the tunnel lining collected by each pressure sensor when supporting the tunnel lining, can ensure reasonable support degree of the tunnel lining, effectively avoid safety hazards caused by insufficient or excessive support force, can control the support pressure of different regions, realize segmented pressurization and reinforcement, prevent local deformation of the tunnel, and provide solid protection for safe and stable construction of the tunnel project.

[0010] In addition, the tunnel support device according to the above application can also have the following additional technical features:

[0011] Specifically, the connecting rod includes a control rod and a support sleeve rod, wherein,

[0012] One end of the control rod is screwed with the grouting anchor rod, the other end of the control rod is screwed with the support sleeve rod, and rotation of the control rod can drive the control rod to move closer to or away from each other relative to the support sleeve rod.

[0013] The support sleeve rod is fixed on the hydraulic module.

[0014] Specifically, one end of the grouting anchor rod is provided with a first groove, and a first internal thread is arranged on the inner wall of the first groove;

[0015] A second groove is arranged in the support sleeve rod, a second internal thread is arranged on the inner wall of the second groove, one end of the control rod is provided with a first external thread matched with the first internal thread, and the other end of the control rod is provided with a second external thread matched with the second internal thread.

[0016] Specifically, the first external thread and the second external thread have opposite thread directions.

[0017] Specifically, the grouting anchor rod is provided with a liquid inlet and at least one liquid outlet, and the grouting anchor rod is also provided with a liquid injection channel for connecting the liquid inlet and the plurality of liquid outlets.

[0018] Specifically, the injection channel is a spiral channel.

[0019] Specifically, it further includes a displacement sensor, which is arranged on the hydraulic module and is used to obtain the distance between the hydraulic module and the support plate, and the displacement sensor is connected to the terminal device.

[0020] Specifically, the arc-shaped support surface is adapted to the contour of the tunnel lining.

[0021] Specifically, a control handle is fixed on the outer wall of the control rod.

[0022] Specifically, the anchor rod support mechanism further includes a threaded sleeve and a plurality of support rods. The threaded sleeve is threadedly connected to the grouting anchor rod, and the plurality of support rods are connected between the threaded sleeve and the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a schematic structural diagram of a tunnel support device according to one embodiment of the present utility model;

[0026] Figure 2 This is a structural diagram of an anchor support mechanism according to an embodiment of the present utility model;

[0027] Figure 3 The figure is a schematic cross-sectional structural diagram of an anchor rod supporting mechanism according to one embodiment of the present utility model.

[0028] As shown in the figure:

[0029] 10. Bracket; 100. Arc-shaped supporting surface;

[0030] 20. Anchor support mechanism; 200. Grouting anchor; 201. Support plate; 202. Pressure sensor; 203. Connecting rod; 204. Hydraulic module; 205. Control handle; 206. Threaded sleeve; 207. Support rod; 2000. First groove; 2001. Liquid inlet; 2002. Liquid outlet; 2003. Liquid injection channel; 2030. Control rod; 2031. Support sleeve rod; 20300. First external thread; 20301. Second external thread; 20310. Second groove;

[0031] 30. Tunnel lining;

[0032] 40. Displacement sensor. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0035] The tunnel support device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0036] like Figures 1-3 As shown, the tunnel support device according to the embodiment of the present invention may include a bracket 10 having an arc-shaped support surface 100 .

[0037] It should be noted that the bracket 10 is made of steel and has high strength, and the bracket 10 can be mounted on a common track used in tunnel construction to facilitate fixing and moving the bracket 10 .

[0038] Furthermore, if Figure 1 As shown, the arc-shaped support surface 100 is adapted to the contour of the tunnel lining 30. Firstly, from the perspective of force, this adaptive design can evenly distribute the supporting force of multiple anchor support mechanisms 20 on the entire contact surface of the tunnel lining 30, effectively avoiding the phenomenon of local stress concentration, thereby reducing the risk of damage such as cracking and deformation of the tunnel lining 30 due to uneven force, and greatly improving the stability and durability of the tunnel structure; secondly, in terms of construction, it helps to ensure construction quality and reduce the adjustment work required in the later stage due to mismatch between the support and the lining.

[0039] The plurality of anchor rod support mechanisms 20 are arranged in a circumferential equidistant array along the arc-shaped support surface 100. In tunnel construction, the surrounding rock may be deformed due to changes in geological conditions, construction disturbance and other factors. The equidistant array arrangement can uniformly constrain the deformation of the surrounding rock and prevent uneven settlement or excessive displacement of the surrounding rock. The circumferential equidistant arrangement of the anchor rod support mechanisms 20 along the arc-shaped support surface 100 can uniformly distribute the support force around the inner wall of the tunnel. Compared with uneven arrangement, this design can avoid local stress concentration and reduce problems such as damage to the grouting anchor rod 200 and crushing of the surrounding rock caused by excessive stress.

[0040] In addition, the equidistant array arrangement has clear regularity and repeatability, facilitating installation and construction by construction personnel according to unified standards. The construction personnel can quickly and accurately determine the position and spacing of each anchor rod support mechanism 20 according to design requirements, improving construction efficiency and reducing construction errors.

[0041] The anchor rod support mechanism 20 comprises a grouting anchor rod 200, a support plate 201, a connecting rod 203 and a hydraulic module 204.

[0042] The grouting anchor rod 200 is inserted into the tunnel lining 30 at one end and exposed outside the tunnel lining 30 at the other end.

[0043] It should be noted that the construction personnel can insert one end of the grouting anchor rod 200 into the tunnel lining 30 at a target position on the tunnel lining 30 by means of an anchor rod drill, and the other end of the grouting anchor rod 200 is exposed outside the tunnel lining 30, which facilitates connection with external grouting tools.

[0044] Specifically, as shown in Figure 2 and Figure 3 , a liquid inlet 2001 and at least one liquid outlet 2002 are formed in the grouting anchor rod 200, and a liquid injection channel 2003 is further arranged in the grouting anchor rod 200 to communicate the liquid inlet 2001 and the plurality of liquid outlets 2002.

[0045] The number of liquid outlets 2002 can be set according to actual conditions, for example, 2, 3, 4 or the like, and when the grouting anchor rod 200 is inserted into the tunnel lining 30 at one end, the plurality of liquid outlets 2002 are located in the tunnel lining 30, and the liquid inlet 2001 is exposed outside the tunnel lining 30, which facilitates communication with external grouting tools (such as a grouting pump), and the grout is injected into the liquid injection channel 2003 through the liquid inlet 2001, and then discharged through the liquid outlet 2002, so as to ensure that the grout can be smoothly discharged into the tunnel lining 30.

[0046] In an embodiment of the present application, as shown in Figure 3 , the liquid injection channel 2003 is a spiral channel.

[0047] Specifically, in a specific grouting operation process, in order to further improve the grouting quality and supporting effect, an appropriate amount of coagulant is added to the slurry. During the addition process, the coagulant and the slurry flow into the liquid inlet 2001 and the liquid inlet 2001. Subsequently, the liquid inlet 2003 is a spiral channel, and the coagulant and the slurry are mixed in the spiral channel to accelerate the mixing efficiency of the coagulant and the slurry, greatly enhance the coagulation performance of the slurry, and significantly improve the overall supporting effect.

[0048] In addition, the spiral channel also has a guiding function. Compared with the traditional straight pipe structure, the spiral channel can cleverly guide the uniform distribution of the slurry, can cover more areas, effectively reduces the occurrence of grouting blind area, ensures the uniformity and integrity of the grouting operation, and provides a solid guarantee for the stable support of the tunnel engineering.

[0049] The support plate 201 is threadedly connected to the grouting anchor rod 200, the support plate 201 is attached to the tunnel lining 30, and the pressure sensor 202 is arranged on the support plate 201 to obtain the support force when supporting the tunnel lining 30.

[0050] One end of the hydraulic module 204 is arranged on the arc-shaped support surface 100, the hydraulic module 204 is connected to the grouting anchor rod 200 through the connecting rod 203, the hydraulic module 204 is configured to be able to apply an axial thrust to the grouting anchor rod 200 through the connecting rod 203, thereby driving the support plate 201 to apply an extrusion force to the surface of the tunnel lining 30, and the hydraulic module 204 and the pressure sensor 202 are connected to the terminal device, wherein the terminal device can be a computer, a handheld tablet, an industrial computer, etc., which can be selected according to actual conditions, and the hydraulic module 204 and the pressure sensor 202 can be connected to the terminal device through wired or wireless communication, for example, Bluetooth, WiFI, etc. Form of communication connection.

[0051] In addition, it should be noted that the hydraulic module 204 is a small hydraulic cylinder, which can control the extension and retraction of the extension rod of the hydraulic cylinder to cooperate with the connecting rod 203 to apply an axial thrust to the grouting anchor rod 200, thereby driving the support plate 201 to apply an extrusion force to the surface of the tunnel lining 30.

[0052] Specifically, when supporting the tunnel lining 30, there are two control modes, one of which is a manual control mode. In this mode, the relevant operating personnel can use the display screen of the terminal device to view the data information collected by each pressure sensor 202 about the supporting force of the tunnel lining 30 in real time and intuitively. The actual supporting condition of each anchor rod supporting mechanism 20 is clearly reflected. The operating personnel can issue operation instructions to the corresponding hydraulic module 204 by manually operating the terminal device according to the data changes presented on the display screen. The hydraulic module 204 quickly responds after receiving the instructions, accurately adjusts the output pressure, and then realizes fine adjustment of the supporting force, so as to ensure that the multiple anchor rod supporting mechanisms 20 have reasonable supporting force, and provide stable and uniform support for the tunnel lining 30.

[0053] The second is an automatic intelligent control mode. The operating personnel can input a predetermined engineering program into the terminal device in advance, and a reasonable supporting force preset range is also pre-stored. The terminal device will continuously receive the real-time data about the supporting force of the tunnel lining 30 returned by each pressure sensor 202 during operation. Then, the terminal device will quickly and accurately analyze and judge whether the data is within the preset reasonable range. Once it is found that one or more data is out of the preset range, the terminal device will immediately automatically control the corresponding hydraulic module 204 to start running. The hydraulic module 204 accurately adjusts the size of the supporting force according to the instructions of the terminal device, so that the supporting force of the tunnel lining 30 quickly returns to the reasonable range.

[0054] Therefore, the reasonable supporting force of the tunnel lining 30 can be ensured, the safety hazards caused by insufficient or excessive supporting force can be effectively avoided, the supporting pressure of different regions can be controlled, segmented pressurization and reinforcement can be realized, local deformation of the tunnel can be prevented, and a solid guarantee is provided for the safe and stable construction of the tunnel project.

[0055] In an embodiment of the utility model, as shown in Figure 2 and Figure 3 The connecting rod 203 includes a control rod 2030 and a support sleeve rod 2031.

[0056] The one end of the control rod 2030 is threadedly connected with the grouting anchor rod 200, the other end of the control rod 2030 is threadedly connected with the support sleeve rod 2031, the control rod 2030 rotates to drive the control rod 2030 to approach or move away from each other relative to the support sleeve rod 2031, and the support sleeve rod 2031 is fixed on the hydraulic module 204.

[0057] In the above scheme, in actual engineering application, the hydraulic module 204 as a power component may have various failures, resulting in its inability to work normally. However, in the design, the threaded connection mode of the control rod 2030 and the support sleeve rod 2031 enables relevant personnel to manually rotate the control rod 2030 to drive the control rod 2030 to move closer to or away from the support sleeve rod 2031 when the hydraulic module 204 is damaged, so as to adjust the support force of the grouting anchor rod 200, ensure that the support operation of the tunnel lining 30 can continue, and greatly improve the emergency handling capability of the equipment and the continuity of construction.

[0058] In addition, the mechanical control rod 2030 and the support sleeve rod 2031 structure are used as a supplement to the hydraulic system, forming a redundant design. When the hydraulic system is working normally, it can work cooperatively with the hydraulic module 204 to provide stable support force for the grouting anchor rod 200. When the hydraulic system fails, the mechanical structure can work independently to ensure that the support system does not fail completely, thereby improving the reliability and stability of the entire support device and providing double protection for tunnel construction safety.

[0059] Further, as shown in Figure 3 The grouting anchor rod 200 is provided with a first recess 2000 at one end, the inner wall of the first recess 2000 is provided with a first internal thread, the support sleeve rod 2031 is provided with a second recess 20310, the inner wall of the second recess 20310 is provided with a second internal thread, one end of the control rod 2030 is provided with a first external thread 20300 matched with the first internal thread, and the other end of the control rod 2030 is provided with a second external thread 20301 matched with the second internal thread.

[0060] In the above scheme, through the cooperation of the first internal thread and the first external thread 20300 and the cooperation of the second internal thread and the second external thread 20301, on the one hand, the detachable connection between the control rod 2030 and the grouting anchor rod 200 can be realized, and the non-grouting anchor rod 200 part can be recycled and reused to save costs. On the other hand, when the control rod 2030 rotates, the control rod 2030 can move axially relative to the support sleeve rod 2031 to push the grouting anchor rod 200 to move.

[0061] Further, as shown in Figure 3 The thread directions of the first external thread 20300 and the second external thread 20301 are opposite.

[0062] In the above scheme, when the first external thread 20300 and the second external thread 20301 are opposite in thread direction, the relevant personnel only need to rotate the control rod 2030 in one direction to make the one end of the control rod 2030 and the grouting anchor rod 200 realize the approach or away through the threaded cooperation, and the other end and the support sleeve rod 2031 also correspondingly generate the reverse approach or away movement, thereby driving the grouting anchor rod 200 to move along the axial direction. The one-direction rotating operation mode greatly simplifies the operation process, reduces the operation steps, can quickly realize the adjustment of the support force, and improves the construction efficiency.

[0063] In an embodiment of the utility model, as shown in Figure 2 The tunnel support device further comprises a displacement sensor 40, which is arranged on the hydraulic module 204 and used to obtain the distance between the hydraulic module 204 and the support plate 201, and the displacement sensor 40 is connected to the terminal device.

[0064] In the above scheme, the displacement sensor 40 can obtain the distance data between the hydraulic module 204 and the support plate 201 in real time and accurately, and transmit these data to the terminal device connected thereto in time. Based on these real-time data, the terminal device can automatically analyze whether the current support state meets the requirements in combination with the preset support parameters and algorithms.

[0065] If the terminal device finds that the distance is abnormal, that is, the support degree or the radial displacement distance deviates from the set value, the terminal device can quickly respond and automatically control the operation of the hydraulic module 204, for example, adjust the flow and pressure of the hydraulic oil, so as to realize the accurate automatic control of the support degree and the radial displacement distance, without frequent manual intervention, and can form double detection and protection with the pressure sensor 202.

[0066] In addition, the displacement sensor 40 monitors the change of the support distance in real time, and once it is found that the support distance changes due to the deformation trend of the surrounding rock, the terminal device can immediately adjust the hydraulic module 204 to increase or decrease the support force, timely inhibit the further deformation of the surrounding rock, maintain the stability of the tunnel, and ensure the construction safety.

[0067] In an embodiment of the utility model, as shown in Figure 3 A control handle 205 is fixed to the outer wall of the control rod 2030.

[0068] In the above scheme, during the use of the tunnel support device, it can be necessary to rotate the control rod 2030 to adjust the position of the grouting anchor rod 200, thereby achieving precise control of the support force. The control handle 205 is fixed on the outer wall of the control rod 2030, providing a stable and easy-to-grasp force point for the operator. The operator can easily place his hand on the control handle 205 and apply appropriate force to rotate the control rod 2030, avoiding the problems of slipping and uneven force that may occur when directly grasping the control rod 2030, greatly improving the stability and accuracy of the operation.

[0069] In one embodiment of the present application, as shown in Figure 3 The anchor rod support mechanism 20 further includes a threaded sleeve 206 and a plurality of support rods 207. The threaded sleeve 206 is threadedly connected to the grouting anchor rod 200, and the plurality of support rods 207 are connected between the threaded sleeve 206 and the support plate 201.

[0070] In the above scheme, when the tunnel lining 30 is subjected to the action of surrounding rock pressure, etc., the force is transmitted to the support plate 201. The plurality of support rods 207 connected between the threaded sleeve 206 and the support plate 201 form a diagonal bracing structure, which can disperse and conduct the vertical or horizontal force borne by the support plate 201. This avoids local overloading of the support plate 201 and deformation or damage, thereby enhancing the stability of the entire support plate 201.

[0071] It should be noted that in this document, relational terms such as "first" and "second", and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the stated elements.

[0072] The above description is only a specific implementation of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application should not be limited to the embodiments described herein, but should be consistent with the widest scope of principles and novel features disclosed herein.

Claims

1. A tunnel support device, characterized in that, The utility model relates to a tunnel lining support device, including: A support has an arc-shaped support surface; A plurality of anchor rod support mechanisms are arranged in an equidistant array along the arc-shaped support surface, the anchor rod support mechanism includes a grouting anchor rod, a support plate, a connecting rod and a hydraulic module, wherein, One end of the grouting anchor rod is inserted into the tunnel lining, and the other end of the grouting anchor rod is exposed outside the tunnel lining; The support plate is threadedly connected on the grouting anchor rod, the support plate is attached to the tunnel lining, and a pressure sensor is arranged on the support plate to obtain the support force when the tunnel lining is supported; One end of the hydraulic module is arranged on the arc-shaped support surface, the hydraulic module is connected with the grouting anchor rod through the connecting rod, the hydraulic module is configured to be capable of applying an axial thrust to the grouting anchor rod through the connecting rod, thereby driving the support plate to apply a pressing force to the surface of the tunnel lining, and the hydraulic module and the pressure sensor are connected with a terminal device.

2. The tunnel support apparatus according to claim 1, wherein The connecting rod includes a control rod and a support sleeve rod, wherein, One end of the control rod is threadedly connected with the grouting anchor rod, the other end of the control rod is threadedly connected with the support sleeve rod, and rotation of the control rod can drive the control rod to move closer to or away from each other relative to the support sleeve rod; The support sleeve rod is fixed on the hydraulic module.

3. The tunnel support apparatus according to claim 2, wherein One end of the grouting anchor rod is provided with a first groove, and a first internal thread is arranged on the inner wall of the first groove; A second groove is arranged in the support sleeve rod, a second internal thread is arranged on the inner wall of the second groove, one end of the control rod is provided with a first external thread matched with the first internal thread, and the other end of the control rod is provided with a second external thread matched with the second internal thread.

4. The tunnel support apparatus according to claim 3, wherein The thread directions of the first external thread and the second external thread are opposite.

5. The tunnel support apparatus according to claim 2, wherein The grouting anchor rod is provided with a liquid inlet and at least one liquid outlet, and the grouting anchor rod is further provided with a liquid injection channel for connecting the liquid inlet and the plurality of liquid outlets.

6. The tunnel support apparatus according to claim 5, wherein The liquid injection channel is a spiral channel.

7. The tunnel support apparatus according to claim 1, wherein A displacement sensor is further arranged on the hydraulic module to obtain the distance between the hydraulic module and the support plate, and the displacement sensor is connected with the terminal device.

8. The tunnel support apparatus according to claim 1, wherein The arc-shaped support surface is matched with the contour of the tunnel lining.

9. The tunnel support apparatus according to claim 2, wherein A control handle is fixed on the outer wall of the control rod.

10. The tunnel support apparatus according to claim 2, wherein The anchor rod support mechanism further includes a threaded sleeve and a plurality of support rods, the threaded sleeve is threadedly connected on the grouting anchor rod, and the plurality of support rods are connected between the threaded sleeve and the support plate.

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