Tunnel anti-rockburst operation trolley

Abstract

The utility model relates to the technical field of tunnel operation equipment, and discloses a tunnel rockburst prevention operation trolley which comprises a walking mechanism, a supporting assembly, an operation platform assembly and a protection assembly, the supporting assembly is arranged on the walking mechanism, and the operation platform assembly is arranged on the supporting assembly; the protection assembly comprises an operation protection window assembly which is used for being arranged in the direction of a tunnel face and can be movably opened or closed, elastic protection baffle assemblies which are used for being arranged in the direction of a tunnel vault and a tunnel haunch and form elastic supporting, and an elastic protection net arranged on the periphery. Meanwhile, the protective measures such as operation protection, rigid protection, elastic protection and net bag protection are achieved, and the various protective measures are arranged in corresponding areas correspondingly, so that the protective performance is improved, and the operation safety, the operation convenience and the operation comfort degree are improved; the method can be suitable for tunnel operation and protection, and is especially suitable for operation and construction environments where rockburst, collapse, blasting and other special environments are prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel operation, and in particular to a tunnel rockburst prevention operation trolley. Background Art

[0002] During the construction of deep-buried tunnels and mine exploitation, due to factors such as large burial depth and high in-situ stress, hard rock rockburst is a common geological disaster, bringing great potential safety hazards to construction operations. When a rockburst occurs, the rock suddenly ruptures under the action of stress, releasing huge energy and posing a serious threat to construction workers and equipment.

[0003] According to on-site investigations and expert evaluations, the proportion of the rockburst section in a certain plateau railway tunnel is about 35%, and about 2 / 3 of it is medium and strong rockburst sections. According to the analysis of the construction records of the rockburst section in the early stage, the rockburst in the inclined shaft of a certain plateau railway tunnel is mainly manifested as the spalling and ejection of the surrounding rock at the vault and the two side arch waists, and the energy is relatively large; in addition, it is found that there is a rockburst phenomenon in the heading face direction during construction. Since the rockburst in the heading face is difficult to predict and has great harmfulness, once a strong or extremely strong rockburst occurs in the heading face direction, it will seriously threaten the life and property safety of construction workers and the progress of tunnel construction. Therefore, it is crucial to effectively prevent and control rockburst during construction.

[0004] Currently, when the operation team of the operation trolley in the prior art operates at the tunnel heading face, the operation safety cannot be effectively guaranteed. Once a strong or extremely strong rockburst occurs, it is usually only possible to passively stop the machine and take shelter. In addition, it will also cause casualties and damage to mechanical equipment, which is not conducive to the active control of the construction in the rockburst section and the compression of the process cycle time. Summary of the Utility Model

[0005] The utility model provides a tunnel rockburst prevention operation trolley. By means of a protection component to protect the top and the side, it can effectively prevent the influence of rockburst at the tunnel arch waist and the tunnel vault on construction operations. In addition, by arranging a protection component, such as a steel bar protection window and a steel wire mesh, in the direction facing the tunnel heading face, it can effectively avoid the influence of rockburst in the tunnel heading face direction on the life safety of construction workers; it can realize the rockburst protection in multiple directions of the tunnel and ensure the smooth progress of construction operations near the tunnel heading face at the same time; to solve the technical problem that the safety of personnel and equipment cannot be guaranteed during the operation on the existing operation trolley.

[0006] The utility model provides a tunnel rockburst prevention operation trolley, which comprises a traveling mechanism, a support assembly, an operation platform assembly and a protection assembly. The support assembly is arranged on the traveling mechanism, and the operation platform assembly is arranged on the support assembly; The protection assembly includes an operation protection window assembly arranged towards the tunnel face direction and capable of being opened or closed movably, an elastic protection baffle assembly arranged towards the tunnel crown and the tunnel arch waist directions respectively and forming an elastic support, and an elastic protection net arranged on the periphery.

[0007] Furthermore, the operation platform assembly includes a side working platform arranged outside the support assembly and a square plate platform arranged on the top of the support assembly.

[0008] Furthermore, the elastic protection baffle assembly includes first protection side plates respectively arranged on the corresponding two sides of the square plate platform facing the tunnel arch waist and hinged to the square plate platform; The elastic protection net includes a first side steel wire mesh hooked and fixed between the support assembly and the first protection side plate; Through the first protection side plate and the first side steel wire mesh, the rockburst of the tunnel arch waist and the tunnel side wall and the rockburst of the tunnel face are prevented from harming the construction personnel.

[0009] Furthermore, the elastic protection baffle assembly includes hydraulic lifting rods, a frame plate, first buffer springs, a protection top plate and protection inclined plates; Multiple hydraulic lifting rods are arranged on the square plate platform at intervals, the frame plate is fixed on the multiple hydraulic lifting rods, multiple first buffer springs are arranged on the frame plate at intervals, and the first buffer springs are arranged in one-to-one correspondence with the hydraulic lifting rods, and the protection top plate is arranged on the multiple first buffer springs; Protection inclined plates are respectively arranged on the two sides of the protection top plate facing the tunnel arch waist.

[0010] Furthermore, the elastic protection baffle assembly includes L-shaped connecting plates, second buffer springs and second protection side plates; L-shaped connecting plates are respectively fixed and connected to the two sides of the frame plate facing the tunnel arch waist, multiple second buffer springs are arranged on the outer surface of the L-shaped connecting plates at intervals, a second protection side plate is fixed on the multiple second buffer springs, and the protection inclined plates are lapped on the corresponding second protection side plates; The elastic protection net includes a second side steel wire mesh hooked and fixed between the protection inclined plates and the second protection side plates; Through the protection inclined plates, the second protection side plates and the second side steel wire mesh, the rockburst of the tunnel crown, the tunnel arch waist and the tunnel side wall and the rockburst of the tunnel face are prevented from harming the construction personnel.

[0011] Furthermore, the operation protection window assembly includes a protection window fixing frame, a steel bar protection window and a U-shaped chute; The U-shaped chute is arranged on one side of the square plate platform facing the tunnel face, the steel bar protection window is arranged in the protection window fixing frame and is jointly arranged on one side facing the tunnel face, and the steel bar protection window and the protection window fixing frame are slidably arranged in the U-shaped chute.

[0012] Further, the support assembly is composed of a cross bar, a vertical bar, and an inclined bar to form a three-dimensional space grid, and a construction passage is reserved in the middle.

[0013] Further, the support assembly includes a portal support frame, a support inclined bar obliquely supported inside the portal support frame, a connecting square bar disposed outside the portal support frame, and a ladder disposed between the connecting square bar and the operation platform assembly.

[0014] Further, the elastic protection net further includes a face rope net that is movably disposed on the construction passage reserved in the portal support frame, and the face rope net is disposed on the portal support frame through a lifting slide rod device.

[0015] Further, the traveling mechanism includes a connecting plate, a U-shaped plate, a crawler wheel, a crawler belt, and a traveling driving device. A plurality of groups of U-shaped plates are fixedly connected to the bottom of the connecting plate. A plurality of groups of crawler wheels are rotatably disposed on each group of U-shaped plates. The crawler belt is sleeved on the plurality of crawler wheels and is meshed and connected. The traveling driving device is disposed on one group of U-shaped plates and the driving end is connected to the crawler wheel on the U-shaped plate to drive the crawler wheel to rotate.

[0016] The utility model has the following beneficial effects:

[0017] The tunnel rockburst prevention operation trolley of the present utility model is composed of a traveling mechanism, a support assembly, and an operation platform assembly to form the basic structure of the operation trolley, providing an operation space position and reserving a construction passage, and can travel and operate in the tunnel along the longitudinal direction; on this basis, a protection assembly is arranged. The protection assembly includes an elastic protection baffle assembly for directly facing the tunnel crown and the tunnel arch waist, which elastically blocks the rockburst from the tunnel arch waist and the tunnel side wall as well as the rockburst from the tunnel heading face, and can not only effectively block but also play a buffering and damping role to avoid the further spread of the energy and acting force generated by the rockburst and cause harm; the protection assembly also includes an operation protection window assembly, which is used to be closed in the non-construction state to protect against rockburst, falling stones, etc., and is opened in the construction state for the construction operation of the tunnel heading face, and can freely switch between the construction state and the non-construction state. In addition, it can also only open the operation area and close the non-operation area, thereby improving the rockburst prevention ability during operation and improving the operation safety; the protection assembly also includes an elastic protection net at the periphery, which is mainly used to block the areas not protected by the operation protection window assembly and the elastic protection baffle assembly, and is also used to improve the air circulation in the operation area, ensuring operation safety while improving the operation comfort; and an interconnected structure form of the elastic protection baffle assembly and the elastic protection net is adopted to form a linkage protection, which can not only play a flexible blocking, buffering and damping role, but also have a rigid blocking and limiting effect, and can quickly consume the energy wave and impact force generated by the rockburst, improving the operation safety of the tunnel rockburst prevention operation trolley. At the same time, it has protection measures such as operation protection, rigid protection, elastic protection, and net pocket protection, and various protection measures are respectively arranged in the corresponding areas, thereby improving the protection performance, operation safety, operation convenience and operation comfort; it can be applied to tunnel operation and protection, and can also be applied to high-altitude operation and protection of other engineering construction types, especially in operation construction environments prone to special environments such as rockburst, landslide, and blasting.

[0018] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the present utility model. Brief Description of the Drawings

[0019] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 It is a schematic front three-dimensional structure diagram of the tunnel rockburst prevention operation trolley of the preferred embodiment of the present utility model;

[0021] Figure 2It is a schematic diagram of the three-dimensional rear view structure of the tunnel rockburst prevention operation trolley in the preferred embodiment of the present utility model;

[0022] Figure 3 It is a schematic diagram of the three-dimensional top view structure of the tunnel rockburst prevention operation trolley in the preferred embodiment of the present utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the protection component in the preferred embodiment of the present utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the traveling mechanism in the preferred embodiment of the present utility model.

[0025] Legend description:

[0026] 100, traveling mechanism; 101, connecting plate; 102, U-shaped plate; 103, crawler wheel; 104, crawler; 105, traveling drive device; 200, support assembly; 201, construction passage; 202, gantry support frame; 203, support diagonal bar; 204, connecting square bar; 205, ladder; 300, operation platform assembly; 301, side working platform; 302, square plate platform; 400, protection component; 401, operation protection window component; 4011, protection window fixing frame; 4012, steel bar protection window; 4013, U-shaped sliding groove; 402, elastic protection baffle component; 4021, first protection side plate; 4022, hydraulic lifting rod; 4023, frame plate; 4024, first buffer spring; 4025, protection top plate; 4026, protection inclined plate; 4027, L-shaped connecting plate; 4028, second buffer spring; 4029, second protection side plate; 403, elastic protection net; 4031, first side wire rope net; 4032, second side wire rope net; 4033, face advance wire rope net; 4034, lifting slide rod device; 500, controller; 600, connecting block; 700, camera. Specific implementation manners

[0027] The following will describe the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways defined and covered by the following.

[0028] Figure 1 It is a schematic diagram of the three-dimensional front view structure of the tunnel rockburst prevention operation trolley in the preferred embodiment of the present utility model; Figure 2 It is a schematic diagram of the three-dimensional rear view structure of the tunnel rockburst prevention operation trolley in the preferred embodiment of the present utility model; Figure 3 It is a schematic diagram of the three-dimensional top view structure of the tunnel rockburst prevention operation trolley in the preferred embodiment of the present utility model; Figure 4 It is a schematic diagram of the structure of the protection component in the preferred embodiment of the present utility model; Figure 5 It is a schematic diagram of the structure of the traveling mechanism in the preferred embodiment of the present utility model.

[0029] As Figure 1 and Figure 2 shown, the tunnel rockburst prevention operation trolley of this embodiment includes a traveling mechanism 100, a support assembly 200, an operation platform assembly 300, and a protection assembly 400. The support assembly 200 is arranged on the traveling mechanism 100, and the operation platform assembly 300 is arranged on the support assembly 200; the protection assembly 400 includes an operation protection window assembly 401 arranged towards the tunnel face direction and capable of being actively opened or closed, an elastic protection baffle assembly 402 arranged towards the tunnel crown and tunnel waist directions respectively to form an elastic support, and an elastic protection net 403 arranged on the periphery. The tunnel rockburst prevention operation trolley of the present utility model is composed of a combination of the traveling mechanism 100, the support assembly 200, and the operation platform assembly 300 to form a basic operation trolley structure, providing an operation space position and reserving a construction passage 201, and can travel and perform construction operations in the tunnel along the longitudinal direction; on this basis, the protection assembly 400 is arranged. The protection assembly 400 includes an elastic protection baffle assembly 402 directly facing the tunnel crown and tunnel waist, which elastically blocks the rockburst from the tunnel waist and sidewall and the rockburst from the tunnel face, can not only effectively block but also play a buffering and damping role, avoiding the further spread of the energy and acting force generated by the rockburst and causing harm; the protection assembly 400 also includes an operation protection window assembly 401, which is used to be closed in the non-construction state to protect against rockburst, falling rocks, etc., and opened in the construction state to perform the construction operation of the tunnel face, and can freely switch between the construction state and the non-construction state. In addition, it can also only open the operation area and close the non-operation area, thereby improving the rockburst prevention ability during operation and improving the operation safety; the protection assembly 400 also includes an elastic protection net 403 on the periphery, which is mainly used to block the areas not protected by the operation protection window assembly 401 and the elastic protection baffle assembly 402, and is also used to improve the air circulation in the operation area, ensuring operation safety while improving the operation comfort; and adopting a structural form in which the elastic protection baffle assembly 402 is interconnected with the elastic protection net 403 to form a linkage protection, which can not only play a flexible blocking, buffering and damping role, but also have a rigid blocking and limiting role, and can quickly consume the energy wave and impact force generated by the rockburst, improving the operation safety of the tunnel rockburst prevention operation trolley. At the same time, it has protection measures such as operation protection, rigid protection, elastic protection, and mesh pocket protection, and various protection measures are respectively arranged in the corresponding areas, thereby improving the protection performance, operation safety, operation convenience, and operation comfort; it can be applied to tunnel operation and protection, and can also be applied to high-altitude operation and protection in other engineering construction types, especially in operation construction environments with special environments such as prone to rockburst, landslide, and blasting.

[0030] As Figure 1 and Figure 2As shown in the figure, in this embodiment, the operation platform assembly 300 includes a side working platform 301 disposed outside the support assembly 200 and a square plate platform 302 disposed on the top of the support assembly 200. The side working platform 301 and the square plate platform 302 are combined to form a multi-layer platform structure; two sets of side working platforms 301 are respectively disposed on both sides of the support assembly 200 to facilitate construction operations in the tunnel waist area and the tunnel side wall area, and at the same time, it is also beneficial to reserve a construction passage 201 in the support assembly 200, so that transportation can be carried out through the construction passage 201 and it is convenient for other mechanical equipment to pass; the top square plate platform 302 is provided to facilitate construction operations in the tunnel waist area and the tunnel arch top area.

[0031] As Figure 1 and Figure 2 shown in the figure, in this embodiment, the elastic protection baffle assembly 402 includes first protection side plates 4021 respectively disposed on the corresponding two sides of the square plate platform 302 facing the tunnel waist and hinged to the square plate platform 302; the elastic protection net 403 includes a first side steel wire rope net 4031 hooked and fixed between the support assembly 200 and the first protection side plate 4021; through the first protection side plate 4021 and the first side steel wire rope net 4031, it is possible to prevent the rock bursts in the tunnel waist and the tunnel side wall and the rock bursts at the tunnel face from harming the construction personnel. On both sides of the square plate platform 302 facing the tunnel waist, first protection side plates 4021 are respectively disposed to form a rigid barrier to block the energy waves and impact forces directly generated by the rock bursts in the tunnel waist and the tunnel side wall and the rock bursts at the tunnel face; Rock burst is a common dangerous phenomenon in tunnel construction, which may cause rock fragments to fly and cause serious injuries to construction personnel. A first side steel wire rope net 4031 is disposed between the support assembly 200 and the first protection side plate 4021, which can not only form an elastic pulling restriction on the first protection side plate 4021, but also block the flying rock fragments and the like formed by the rock bursts in the tunnel waist and the tunnel side wall and the rock bursts at the tunnel face in a net bag manner, avoiding sputtering damage and injury to the operating personnel and operating equipment. By setting the first protection side plate 4021 and the first side steel wire rope net 4031, it is possible to effectively block and reduce the harm of the rock fragments generated by the rock burst to the construction personnel, ensure the safety of the mechanical equipment and equipment operators and ensure the continuity of the construction, and can improve the construction efficiency and progress; the existence of the elastic protection device provides additional safety protection for the construction personnel, reduces the construction risk, and helps to enhance the confidence and work enthusiasm of the construction personnel.

[0032] As Figure 1 、 Figure 2 and Figure 3As shown in the figure, in this embodiment, the elastic protection baffle assembly 402 includes a hydraulic lifting rod 4022, a frame plate 4023, a first buffer spring 4024, a protection top plate 4025, and a protection inclined plate 4026; multiple hydraulic lifting rods 4022 are arranged at intervals on the square plate platform 302, the frame plate 4023 is fixed on the multiple hydraulic lifting rods 4022, multiple first buffer springs 4024 are arranged at intervals on the frame plate 4023, and the first buffer springs 4024 are arranged in one-to-one correspondence with the hydraulic lifting rods 4022, and the protection top plate 4025 is arranged on the multiple first buffer springs 4024; protection inclined plates 4026 are respectively arranged on both sides of the protection top plate 4025 facing the tunnel springing. By arranging the protection top plate 4025 and the protection inclined plates 4026 on the square plate platform 302 at the top, an effective rigid protection for the top operation is formed, and the protection top plate 4025 and the protection inclined plates 4026 are connected by the first buffer springs 4024. While providing rigid protection, the first buffer springs 4024 can be used for elastic buffering and damping. It can not only prevent the protection top plate 4025 and the protection inclined plates 4026 from being damaged due to stress concentration when being impacted, but also form an energy dissipation and damping effect to prevent the rock fragments generated by rockburst from scattering and rebounding; the entire protection part is arranged on the square plate platform 302 via the frame plate 4023 and through the hydraulic lifting rods 4022, and can be adjusted in height up and down. Then, by adjusting to a suitable distance height from the tunnel vault, the protection can be better, so as to achieve the purpose of ensuring the safety of the operators and the operating equipment. Adopting the structural form of arranging multiple first buffer springs 4024 and multiple hydraulic lifting rods 4022 is beneficial to disperse the acting force and avoid damage and breakage caused by stress concentration. In addition, the protection top plate 4025 and the protection inclined plates 4026 are arranged at the same time, which can match the shape of the tunnel vault, and can be uniformly adjusted to match the distance from the tunnel function, thereby improving the protection performance and safety. Multiple first buffer springs 4024 are arranged in an array on the frame plate 4023, and the protection top plate 4025 is fixedly attached to the tops of these first buffer springs 4024; the protection inclined plates 4026 are respectively arranged on both sides of the protection top plate 4025, specifically on the sides of the protection top plate 4025 facing the tunnel springing direction.

[0033] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, in this embodiment, the elastic protection baffle assembly 402 includes an L-shaped connecting plate 4027, a second buffer spring 4028, and a second protection side plate 4029. On both sides of the frame plate 4023 facing the tunnel waist, L-shaped connecting plates 4027 are fixedly connected respectively. A plurality of second buffer springs 4028 are arranged at intervals on the outer surface of the L-shaped connecting plate 4027, and a second protection side plate 4029 is fixed on the plurality of second buffer springs 4028. The protection inclined plate 4026 is lapped on the corresponding second protection side plate 4029. The elastic protection net 403 includes a second side wire rope net 4032 hooked and fixed between the protection inclined plate 4026 and the second protection side plate 4029. Through the protection inclined plate 4026, the second protection side plate 4029, and the second side wire rope net 4032, it is possible to prevent the rock bursts on the tunnel crown, the tunnel waist, and the tunnel side wall, as well as the rock burst on the tunnel heading face, from harming the construction workers. On the side of the frame plate 4023, that is, in the direction facing the tunnel waist, second protection side plates 4029 are respectively arranged to block the impact of rock fragments directly generated by the rock burst from the tunnel waist through the second protection side plates 4029, forming a rigid protection. At the same time, the second protection side plates 4029 are elastically fixed on the L-shaped connecting plates 4027 via a plurality of second buffer springs 4028 arranged in an array, forming elastic buffering and damping energy dissipation for the impacting rock fragments, thereby reducing and consuming the impact energy and impact force of the rock fragments, so as to achieve the purpose of protection. Rock burst is a common dangerous phenomenon in tunnel construction, which may cause rock fragments to fly and cause serious injuries to construction workers. Arranging the second side wire rope net 4032 between the protection inclined plate 4026 and the second protection side plate 4029 can not only form an elastic pulling restriction between the protection inclined plate 4026 and the second protection side plate 4029, but also block the flying rock fragments formed by the rock bursts on the tunnel crown, the tunnel waist, and the tunnel side wall, as well as the rock burst on the tunnel heading face in a net bag manner, avoiding sputtering damage and injury to the operating personnel and operating equipment. By setting the protection inclined plate 4026, the second protection side plate 4029, and the second side wire rope net 4032, it is possible to effectively block and reduce the harm of rock fragments generated by rock bursts to construction workers, ensure the safety of mechanical equipment and equipment operators, and ensure the continuity of construction, which can improve the construction efficiency and progress. The existence of the elastic protection device provides additional safety protection for construction workers, reduces construction risks, and helps to enhance the confidence and work enthusiasm of construction workers. Optionally, the protection inclined plate 4026 can be hinged to the second protection side plate 4029 on the corresponding side; or the protection inclined plate 4026 extends outward and laps on the second protection side plate 4029; or the protection inclined plate 4026 extends outward and covers and blocks the gap between the protection inclined plate 4026 and the second protection side plate 4029, so as to prevent the rock fragments generated by rock bursts from entering the operation area and equipment area through the gap between the protection inclined plate 4026 and the second protection side plate 4029.

[0034] As Figure 1 , Figure 2 and Figure 3 shown, in this embodiment, the operation protection window assembly 401 includes a protection window fixing frame 4011, a steel bar protection window 4012, and a U-shaped chute 4013; the U-shaped chute 4013 is disposed on one side of the square plate platform 302 facing the tunnel heading face, the steel bar protection window 4012 is disposed within the protection window fixing frame 4011 and both are disposed on one side facing the tunnel heading face, and the steel bar protection window 4012 and the protection window fixing frame 4011 are slidably disposed within the U-shaped chute 4013. The protection window fixing frame 4011 and the steel bar protection window 4012 are combined to form a window-shaped structure and are disposed on one side facing the tunnel heading face to block the impact force of rock fragments generated by rock bursts from the tunnel heading face; when tunnel heading face operations need to be carried out, the window-shaped structure is disposed in a segmented manner so that the window-shaped structure in the construction operation area can be pushed and pulled to slide within the U-shaped chute 4013, thereby avoiding the area to be operated to facilitate construction operations while protecting other areas, so as to achieve the purpose of protection and ensuring the safety of operators and operation equipment.

[0035] As Figure 1 and Figure 2 shown, in this embodiment, the support assembly 200 is composed of a horizontal bar, a vertical bar, and an inclined bar to form a three-dimensional space grid, and a construction passage 201 is reserved in the middle. Being composed of a horizontal bar, a vertical bar, and an inclined bar to form a three-dimensional space grid, and being composed of multiple triangular units to form a three-dimensional space grid structure, the structural stability is better.

[0036] As Figure 1 and Figure 2 shown, in this embodiment, the support assembly 200 includes a portal support frame 202, a support inclined bar 203 obliquely supported within the portal support frame 202, a connecting square bar 204 disposed outside the portal support frame 202, and a ladder 205 disposed between the connecting square bar 204 and the operation platform assembly 300. By providing the portal support frame 202, it is convenient to form a construction passage 201 within the portal support frame 202. At the same time, a support inclined bar 203 is provided within the portal support frame 202 to form a stable structure. The connecting square bar 204 is disposed on both sides of the portal support frame 202 and a ladder 205 is disposed between the connecting square bar 204 and the square plate platform 302 to facilitate the movement of operators between different platforms.

[0037] As Figure 1 and Figure 2As shown, in this embodiment, the elastic protection net 403 further includes a face steel wire rope net 4033 movably disposed on the construction passage 201 reserved by the gantry support frame 202. The face steel wire rope net 4033 is disposed on the gantry support frame 202 through a lifting slide bar device 4034. The face steel wire rope net 4033 is disposed on the construction passage 201 to prevent rock fragments generated by rock bursts from entering the area where the operation platform assembly 300 is located through the construction passage 201, and can protect the construction passage 201 and its surrounding areas. The face steel wire rope net 4033 is disposed on the gantry support frame 202 through the lifting slide bar device 4034. The face steel wire rope net 4033 is lowered when protection is needed, and the face steel wire rope net 4033 is raised when passage through the construction passage 201 is required. Optionally, the lifting slide bar device 4034 adopts an electric rolling curtain mechanism (drum mechanism), and a drum is used to roll up or lower the face steel wire rope net 4033; the drum is usually connected to a motor to achieve electric control. Optionally, the lifting slide bar device 4034 adopts a slide rail mechanism, which is usually composed of a guide rail and a slider to ensure smooth operation. Optionally, the lifting slide bar device 4034 adopts a chain drive mechanism, and the lifting of the face steel wire rope net 4033 is achieved through a chain and a sprocket.

[0038] As Figure 1 , Figure 2 and Figure 5As shown, in this embodiment, the traveling mechanism 100 includes a connecting plate 101, a U-shaped plate 102, a crawler wheel 103, a crawler 104, and a traveling driving device 105. A plurality of groups of U-shaped plates 102 are fixedly connected to the bottom of the connecting plate 101. A plurality of groups of crawler wheels 103 are rotatably arranged on each group of U-shaped plates 102. The crawler 104 is sleeved on the plurality of crawler wheels 103 and is meshed and connected. The traveling driving device 105 is arranged on one group of U-shaped plates 102, and its driving end is connected to the crawler wheel 103 on the U-shaped plate 102 to drive the crawler wheel 103 to rotate. The connecting plate 101 provides a stable installation foundation; the connecting plate 101 and the U-shaped plate 102 provide a solid support structure for the traveling mechanism 100, capable of bearing the equipment or load above the traveling mechanism 100; the combination of the crawler wheel 103 and the crawler 104 provides the traveling mechanism 100 with the ability to move on different terrains. The design of the crawler 104 can provide good grip and low ground pressure, enabling it to travel stably on soft or uneven ground; the traveling driving device 105 (using a motor as the driving device) provides power for the crawler wheel 103, enabling it to rotate and push the entire traveling mechanism 100 forward or backward. Motor drive can achieve precise speed control and direction adjustment; due to the design of the crawler wheel 103 and the crawler 104, the traveling mechanism 100 can adapt to a variety of different terrain conditions; the plurality of groups of crawler wheels 103 arranged on the U-shaped plate 102 increase the contact area of the traveling mechanism 100, thereby improving the stability during driving; the structures of the crawler 104 and the crawler wheel 103 are usually designed to be more durable, capable of withstanding long-term use and harsh working environments. Optionally, the traveling driving device 105 uses a motor.

[0039] During implementation, a multifunctional rockburst prevention operation trolley is provided, including a connecting plate 101. The upper surface of the connecting plate 101 is fixedly connected with a gantry support frame 202. The upper surface of the gantry support frame 202 is fixedly connected with a square plate platform 302. A controller 500 is installed on the upper surface of the square plate platform 302. A hydraulic lifting rod 4022 is installed on the upper surface of the square plate platform 302. One end of the hydraulic lifting rod 4022 away from the square plate platform 302 is fixedly connected with a frame plate 4023. An elastic protective baffle assembly 402 is arranged on the outer surface of the frame plate 4023. Two groups of U-shaped plates 102 arranged at intervals are fixedly connected to the bottom surface of the connecting plate 101. A crawler walking mechanism is arranged below the connecting plate 101. A connecting square rod 204 is fixedly connected to the outer surface of the gantry support frame 202. One end of the connecting square rod 204 away from the gantry support frame 202 is fixedly connected with a ladder 205. One end of the ladder 205 away from the connecting square rod 204 is fixedly connected with the square plate platform 302. A support diagonal rod 203 is fixed on the surface of the gantry support frame 202. Both ends of the square plate platform 302 are connected to a first protective side plate 4021 through round pin rods. A first side wire rope net 4031 is used to connect the first protective side plate 4021 and the gantry support frame 202. A face wire rope net 4033 is arranged below the square plate platform 302. The face wire rope net 4033 is retracted and released through a lifting slide rod device 4034. Side working platforms 301 are installed on both sides below the gantry support frame 202. A connecting block 600 is fixedly connected to the bottom surface of the frame plate 4023. A camera 700 is installed on the front surface of the connecting block 600.

[0040] The controller 500 is electrically connected to the hydraulic lifting rod 4022 and the motor (travel driving device 105); there are two connecting plates 101, both are arranged on the bottom surface of the gantry support frame 202 and are in a symmetrical state; two groups of U-shaped plates 102 are arranged below each connecting plate 101; a hydraulic lifting rod 4022 is arranged at each corner of the square plate platform 302, a total of four, which are used to support the elastic protective baffle assembly 402, the frame plate 4023 and other components; a connecting square rod 204 and a ladder 205 are respectively arranged on both sides of the gantry support frame 202, both are arranged on the outer surface of the square plate platform 302 and are in a symmetrical state.

[0041] The crawler walking mechanism includes a motor (walking drive device 105), a first rotating shaft, a second rotating shaft, a third rotating shaft, and a fourth rotating shaft. The motor is installed on the outer surface of the first U-shaped plate 102, and the output end of the motor is installed with the first rotating shaft. The first rotating shaft is rotatably connected to the inside of the first U-shaped plate 102, and the outer surface of the first rotating shaft is fixedly connected to the first track wheel; the fourth rotating shaft is rotatably connected to the inside of the first U-shaped plate 102, and the outer surface of the fourth rotating shaft is fixedly connected to the fourth track wheel. The second rotating shaft is rotatably connected to the inside of the second U-shaped plate 102, the third rotating shaft is rotatably connected to the inside of the second U-shaped plate 102, the outer surface of the second rotating shaft is fixedly connected to the second track wheel, and the outer surface of the third rotating shaft is fixedly connected to the third track wheel. The crawler 104 is transmission-connected between the first track wheel, the fourth track wheel, the second track wheel, and the third track wheel.

[0042] The signal is transmitted to the controller 500 through the remote control, and the controller 500 transmits the signal to the motor. After receiving the signal, the motor will start, and the motor drives the first rotating shaft to rotate, and the first rotating shaft simultaneously drives the first track wheel to rotate, and the first track wheel drives the track 104, the second track wheel, the second rotating shaft, the third track wheel, the third rotating shaft, the fourth track wheel, and the fourth rotating shaft to rotate, so that the trolley can be moved by remote control, which is more stable, convenient and safer than the traditional way of dragging the work trolley by a loader.

[0043] The protective assembly 400 includes a first buffer spring 4024 and an L-shaped connecting plate 4027. The first buffer spring 4024 is fixedly connected to the upper surface of the frame plate 4023. One end of the first buffer spring 4024 away from the frame plate 4023 is fixedly connected to a protective top plate 4025. The outer surface of the protective top plate 4025 is fixedly connected to two protective inclined plates 4026.

[0044] Four first buffer springs 4024 are provided, and are arranged in the directions of four corners between the protective top plate 4025 and the frame plate 4023 .

[0045] The left and right side surfaces of the frame plate 4023 are fixedly connected with an L-shaped connecting plate 4027, the side surface of the L-shaped connecting plate 4027 is fixedly connected with a second buffer spring 4028, the end of the second buffer spring 4028 away from the L-shaped connecting plate 4027 is fixedly connected with a second protective side plate 4029, and the protective inclined plate 4026 and the second protective side plate 4029 are connected by a second lateral wire rope net 4032.

[0046] Two L-shaped connecting plates 4027 and two second protective side plates 4029 are provided. An L-shaped connecting plate 4027 and a second protective side plate 4029 are provided on the left and right sides of the frame plate 4023 respectively. Four second buffer springs 4028 are provided between each L-shaped connecting plate 4027 and the second protective side plate 4029.

[0047] By setting the protective roof plate 4025, the protective inclined plate 4026, and the second protective side plate 4029 to be all close to the rock surface, the safety problem that the rockburst stones spall and eject in the direction from the waist to the top of the arch in the tunnel rockburst section affects the operation of the tunnel heading face workers is effectively solved. At the same time, by setting the first buffer spring 4024 and the second buffer spring 4028, the vibration and impact force when the rockburst section stones fall and eject onto the protective roof plate 4025, the protective inclined plate 4026, and the second protective side plate 4029 can be effectively reduced, thereby further enhancing the protection and safety of this operation trolley.

[0048] A protective window fixing frame 4011 is installed below the protective roof plate 4025 close to the tunnel heading face direction. Four reinforced protective windows 4012 are respectively installed in the protective window fixing frame 4011. The bottom surface of the reinforced protective window 4012 slides left and right in the U-shaped chute 4013. The U-shaped chute 4013 is fixedly connected to the U-shaped part through a connecting bolt. The U-shaped part is fixedly connected to the outer surface of the square plate platform 302. The square plate platform 302 is connected to the first protective side plate 4021 through a round pin rod. The first protective side plate 4021 can rotate through the round pin rod. The first protective side plate 4021 and the gantry support frame 202 are connected through the first side wire mesh 4031.

[0049] The reinforced protective window 4012 can slide left and right along the U-shaped chute 4013 according to the operation needs and can be fixed at the necessary positions (for example, fixed by the cooperation of a bolt and a socket) to facilitate operation and protection; the heading face wire mesh 4033 can be deployed through the lifting slide rod device 4034 to prevent rockburst at the tunnel heading face and can be retracted and lifted when not in use to facilitate the passage of other mechanical equipment.

[0050] The protective window fixing frame 4011 is used to install and fix the reinforced protective window 4012. At the same time, a U-shaped chute 4013 is installed in the protective window fixing frame 4011. The reinforced protective window 4012 can slide and be fixed in the U-shaped chute 4013, ensuring that the wire mesh of the reinforced protective window 4012 can effectively provide safety protection.

[0051] The reinforced protective window 4012, the heading face wire mesh 4033, the first side wire mesh 4031, and the second side wire mesh 4032 can all prevent the rockburst in the tunnel heading face direction from causing harm to the personnel and equipment inside the operation trolley.

[0052] The side working platform 301 is available for construction workers to operate. A first protective side plate 4021 is provided on each of the left and right sides below the square plate platform 302, which is used to protect the construction on the side working platform 301 from rock bursts in the direction from the side wall to the arch waist. When necessary, the first side steel wire mesh 4031 is connected to the first protective side plate 4021 and the gantry support 202 through hooks to prevent the hazards of rock bursts in the tunnel arch waist, tunnel side wall and tunnel face to construction workers.

[0053] Through the cooperation among the remote controller, the controller 500 and the crawler traveling mechanism, it is more stable, convenient and safer than the traditional way of the loader dragging the operation trolley to travel. Through the cooperation among the remote controller, the controller 500 and the hydraulic lifting rod 4022, the safety of personnel operating on the trolley can be improved and the operation difficulty can be reduced. By arranging the protective roof plate 4025, the protective inclined plate 4026 and the second protective side plate 4029 to be close to the rock surface, the safety problem that the stones falling and ejecting in the rock burst section affect the operation of the face workers is effectively solved. At the same time, by arranging the first buffer spring 4024 and the second buffer spring 4028, the vibration and impact force when the stones in the rock burst section fall and eject on the protective roof plate 4025, the protective inclined plate 4026 and the second protective side plate 4029 can be effectively reduced, thereby further strengthening the protection and safety of the operation trolley. In addition, by arranging the steel bar protection window 4012 and the steel wire mesh (the first side steel wire mesh 4031, the second side steel wire mesh 4032, the face steel wire mesh 4033) on the side of the trolley facing the tunnel face, the impact of the rock burst in the tunnel face direction on the life safety of construction workers can be effectively avoided. The flexible unfolding and storage (winding, folding storage, removal, etc.) methods can not only reduce the impact of rock bursts on construction operations, ensure the smooth progress of construction, protect the safety of personnel and equipment inside the operation trolley, but also effectively utilize the limited space of the operation trolley and avoid the steel wire mesh (the first side steel wire mesh 4031, the second side steel wire mesh 4032, the face steel wire mesh 4033) from interfering with the work of other workers when not needed.

[0054] It has the following beneficial effects.

[0055] 1. The utility model effectively solves the safety problem of rockburst section stones falling and ejecting, which affects the operation of tunnel heading face workers, by arranging a protective top plate 4025, a protective inclined plate 4026, and a second protective side plate 4029 all close to the rock surface. At the same time, by arranging a first buffer spring 4024 and a second buffer spring 4028, it can effectively reduce the vibration and impact force when the rockburst section stones fall and eject on the protective top plate 4025, the protective inclined plate 4026, and the second protective side plate 4029, thereby further enhancing the protection and safety of this operation trolley. In addition, by arranging a steel bar protective window 4012 and a steel wire mesh on the trolley facing the tunnel heading face direction, it can effectively avoid the impact of rockburst in the tunnel heading face direction on the lives of construction workers. The flexible unfolding and storage methods can not only reduce the impact of rockburst on construction operations, ensure the smooth progress of construction, but also protect the safety of personnel and equipment inside the operation trolley, and effectively utilize the limited space of the operation trolley to avoid the steel wire mesh from interfering with the work of other staff when not needed.

[0056] 2. Through the cooperation among the remote controller, the controller 500, and the crawler walking mechanism of the utility model, compared with the traditional way of towing the operation trolley by a loader to walk, it is more stable, convenient, and has higher safety. Through the cooperation among the remote controller, the controller 500, and the hydraulic lifting rod 4022, it can improve the safety of personnel operating on the trolley and reduce the operation difficulty.

[0057] 3. The utility model can effectively prevent the impact of rockburst in multiple directions, such as the tunnel waist, the tunnel crown, and the tunnel heading face, on construction operations, reduce the impact of rockburst on the lives of construction workers and the damage to mechanical equipment, ensure the smooth progress of construction operations near the tunnel heading face, shorten the shutdown and risk avoidance time in the rockburst section, and is conducive to ensuring the smooth progress of the project schedule.

[0058] Matters not covered in this utility model are well-known technologies.

[0059] The technical features of the above embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0060] The above-described embodiments only represent several implementation manners of the utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the appended claims.

[0061] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tunnel rockburst prevention operation trolley, characterized in that it includes a traveling mechanism (100), a support assembly (200), an operation platform assembly (300) and a protection assembly (400), the support assembly (200) is arranged on the traveling mechanism (100), and the operation platform assembly (300) is arranged on the support assembly (200); the protection assembly (400) includes an operation protection window assembly (401) arranged towards the tunnel face direction and capable of being movably opened or closed, an elastic protection baffle assembly (402) arranged towards the tunnel crown and tunnel haunch directions respectively and forming an elastic support, and an elastic protection net (403) arranged on the periphery.

2. The tunnel rockburst prevention operation trolley according to claim 1, characterized in that the operation platform assembly (300) includes a side working platform (301) arranged outside the support assembly (200) and a square plate platform (302) arranged on the top of the support assembly (200).

3. The tunnel rockburst prevention operation trolley according to claim 2, characterized in that the elastic protection baffle assembly (402) includes first protection side plates (4021) respectively arranged on the corresponding two sides of the square plate platform (302) facing the tunnel haunch and hinged to the square plate platform (302); the elastic protection net (403) includes a first side wire rope net (4031) hooked and fixed between the support assembly (200) and the first protection side plate (4021); through the first protection side plate (4021) and the first side wire rope net (4031), to prevent the rockburst of the tunnel haunch and tunnel side wall and the harm of the rockburst of the tunnel face to the construction personnel.

4. The tunnel rockburst prevention operation trolley according to claim 2, characterized in that the elastic protection baffle assembly (402) includes hydraulic lifting rods (4022), frame plates (4023), first buffer springs (4024), protection roof plates (4025) and protection inclined plates (4026); multiple hydraulic lifting rods (4022) are arranged at intervals on the square plate platform (302), the frame plates (4023) are fixed on the multiple hydraulic lifting rods (4022), multiple first buffer springs (4024) are arranged at intervals on the frame plates (4023), and the first buffer springs (4024) are arranged in one-to-one correspondence with the hydraulic lifting rods (4022), and the protection roof plates (4025) are arranged on the multiple first buffer springs (4024); protection inclined plates (4026) are respectively arranged on both sides of the protection roof plate (4025) facing the tunnel haunch.

5. The tunnel rockburst prevention operation trolley according to claim 4, characterized in that the elastic protection baffle assembly (402) includes an L-shaped connecting plate (4027), a second buffer spring (4028) and a second protection side plate (4029); On both sides of the frame plate (4023) facing the tunnel's waist, there are respectively fixedly connected L-shaped connecting plates (4027). On the outer surface of the L-shaped connecting plates (4027), there are arranged multiple second buffer springs (4028) at intervals. A second protective side plate (4029) is fixed on the multiple second buffer springs (4028), and the protective inclined plate (4026) is lapped on the corresponding second protective side plate (4029); The elastic protective net (403) includes a second side steel wire mesh (4032) hooked and fixed between the protective inclined plate (4026) and the second protective side plate (4029); Through the protective inclined plate (4026), the second protective side plate (4029), and the second side steel wire mesh (4032), it is to prevent the rock bursts of the tunnel vault, the tunnel's waist, and the tunnel side wall, as well as the harm of the rock burst of the tunnel heading face to the construction workers.

6. The tunnel rock burst prevention operation trolley according to claim 2, wherein, The operation protection window assembly (401) includes a protection window fixing frame (4011), a steel bar protection window (4012), and a U-shaped chute (4013); The U-shaped chute (4013) is arranged on one side of the square plate platform (302) facing the tunnel heading face. The steel bar protection window (4012) is arranged within the protection window fixing frame (4011) and is jointly arranged on one side facing the tunnel heading face. The steel bar protection window (4012) and the protection window fixing frame (4011) are slidably arranged within the U-shaped chute (4013).

7. The tunnel rock burst prevention operation trolley according to any one of claims 1 to 6, wherein, The support assembly (200) is composed of a combination of cross bars, vertical bars, and diagonal bars to form a three-dimensional space grid, and a construction passage (201) is reserved in the middle.

8. The tunnel rock burst prevention operation trolley according to claim 7, wherein, The support assembly (200) includes a portal support frame (202), a support diagonal bar (203) inclined within the portal support frame (202), a connecting square bar (204) arranged outside the portal support frame (202), and a ladder (205) arranged between the connecting square bar (204) and the operation platform assembly (300).

9. The tunnel rock burst prevention operation trolley according to claim 8, wherein, The elastic protective net (403) further includes a heading face steel wire mesh (4033) movably arranged on the construction passage (201) reserved in the portal support frame (202), The heading face steel wire mesh (4033) is arranged on the portal support frame (202) through a lifting slide rod device (4034).

10. The tunnel rock burst prevention operation trolley according to any one of claims 1 to 6, wherein, The traveling mechanism (100) includes a connecting plate (101), a U-shaped plate (102), a crawler wheel (103), a crawler belt (104), and a traveling driving device (105), At the bottom of the connecting plate (101), multiple groups of U-shaped plates (102) are fixedly connected. On each group of U-shaped plates (102), multiple groups of crawler wheels (103) are rotatably arranged. The crawler belt (104) is sleeved on the multiple crawler wheels (103) and is meshed and connected, The traveling drive device (105) is disposed on one set of U-shaped plates (102), and its driving end is connected to the crawler wheels (103) on the U-shaped plates (102) to drive the crawler wheels (103) to rotate.

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