A tunnel arch replacement construction support device

Abstract

The utility model discloses a tunnel arch replacement construction support device, its characterized in that: including support frame, the upper support plate of support frame is opened with two lateral recesses, is equipped with same number's hydraulic lift in each lateral recess, the top fixed mounting of hydraulic lift has the support block for supporting steel guard frame, and hydraulic lift can be in the position removal in lateral recess, to realize to the support of multiple steel guard frame and adjacent steel guard frame of different position. The utility model can support multiple steel guard frame and adjacent steel guard frame of different position.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tunnel arch replacement construction support, specifically to a tunnel arch replacement construction support device. BACKGROUND

[0002] In the tunnel arch replacement construction process, the traditional support device has many limitations. The traditional support structure often lacks flexibility, and it is difficult to provide accurate and stable support for steel protective frames of different positions, different spacings and different shapes, that is, the construction support device can usually only support a group of arch frames. The support point position of many existing support devices is fixed and cannot be quickly adjusted according to actual construction needs, resulting in the need for a large amount of manpower and time to adapt to the complex and variable tunnel arch structure, which not only greatly reduces the construction efficiency, but also increases the construction cost and safety risk.

[0003] At the same time, the traditional support device has deficiencies in the stability of supporting the steel protective frame. Due to the lack of an adaptive structure specially designed for the shape of the steel protective frame, the steel protective frame and the support device are prone to poor contact and uneven stress, which may cause displacement, deformation or even collapse of the steel protective frame, seriously threatening the safety of tunnel construction and engineering quality.

[0004] In addition, the traditional support device has poor mobility, and the transfer and positioning operation in the tunnel is extremely inconvenient. Usually, large lifting equipment is needed for overall handling, which not only puts high requirements on the space and equipment resources of the construction site, but also easily causes safety accidents due to improper operation during lifting. Moreover, after moving into position, it is difficult to quickly achieve accurate positioning and stable support, affecting the continuity and smoothness of the construction. UTILITY MODEL CONTENTS

[0005] Therefore, in order to solve the above problems, the utility model provides a tunnel arch replacement construction support device which can support multiple steel protective frames of different positions and adjacent steel protective frames.

[0006] The utility model is realized in that a tunnel arch replacement construction support device is constructed, characterized by:

[0007] The utility model discloses a support frame (1), two transverse grooves (3) are formed in the upper support plate (2) of the support frame (1), a same number of hydraulic lifting mechanisms (4) are arranged in each transverse groove (3), the top of the hydraulic lifting mechanism (4) is fixedly installed with a support block (6) for supporting a steel protective frame (5), and the hydraulic lifting mechanism (4) can move in position in the transverse groove (3), so as to support multiple steel protective frames (5) of different positions and adjacent steel protective frames (5).

[0008] The utility model discloses a tunnel arch replacement construction support device, its characterized in that: both sides of the support frame (1) are equipped with side panels (7) respectively, the outside of side panel (7) has two side recesses (8), be equipped with the support rod (9) of being able to move along its horizontal and be used for supporting the lower end of steel guard frame (5) in side recess (8).

[0009] The utility model discloses a tunnel arch replacement construction support device, its characterized in that: the bottom of hydraulic lifting mechanism (4) is equipped with square locating seat A (10), the lower end of hydraulic lifting mechanism (4) is placed in transverse recess (3) through square locating seat A (10), square locating seat A (10) is used for preventing hydraulic lifting mechanism from tilting.

[0010] The utility model discloses a tunnel arch replacement construction support device, its characterized in that: the bottom of support rod (9) is equipped with square locating seat B (11), the lower end of support rod (9) is placed in side recess (8) through square locating seat B (11), and square locating seat B (11) is used for preventing support rod (9) from tilting.

[0011] The utility model discloses a tunnel arch replacement construction support device, its characterized in that: the upper surface of support block (6) has the arc recess or convex structure that is suitable for steel guard frame (5), to enhance the support stability of steel guard frame (5).

[0012] The utility model discloses a tunnel arch replacement construction support device, its characterized in that: the bottom of support frame (1) is equipped with mobile device, and the mobile device includes gyro wheel and brake mechanism to facilitate the movement and positioning of whole support device in the tunnel.

[0013] The utility model discloses a tunnel arch replacement construction support device, its characterized in that: the top of support rod (9) is equipped with adjustable support head, and the support head can adapt to the lower end surface of steel guard frame (5) of different shapes and sizes, and further improves the reliability and flexibility of support.

[0014] The utility model has the following advantages: (1) flexible support position adjustment: the movable hydraulic lifting mechanism is arranged in the transverse groove of the upper support plate, which can easily realize accurate support of different positions and adjacent steel support frames. This flexibility effectively adapts to the diversity and complexity of the layout of the steel support frame in the tunnel arch replacement construction, reduces the construction difficulties caused by limited support position, greatly improves the construction efficiency, and reduces the dependence on the accuracy of the design position of the steel support frame in the early construction, facilitating flexible adjustment according to the actual situation on site. (2) Enhanced support stability: the square positioning seat A at the bottom of the hydraulic lifting mechanism can prevent tilting and ensure the vertical stability of the hydraulic lifting mechanism during the support process, thereby providing reliable vertical upward support force for the steel support frame. The square positioning seat B at the bottom of the support rod in the groove on the two sides of the support frame can prevent the support rod from tilting and stably support the lower end of the steel support frame.

[0015] The arc-shaped groove or protruding structure on the support block matched with the steel support frame, and the adjustable support head at the top of the support rod, can better fit the shape of the steel support frame, so that the steel support frame is uniformly stressed during the support process, effectively avoiding problems such as displacement and deformation of the steel support frame caused by poor contact or uneven stress, and ensuring the safety and quality of the tunnel arch replacement construction. (3) Convenient movement and positioning: the movement device at the bottom of the support frame, including the roller and the brake mechanism, makes the movement of the entire support device in the tunnel easy and convenient. During the tunnel construction process, the support device can be quickly moved to the required position, reducing the transfer time of construction equipment and labor cost. The brake mechanism can quickly achieve stable positioning after moving to the position, ensuring that the support device does not move accidentally when supporting the steel support frame, and ensuring the continuity and stability of the construction. (4) Improve the applicability and universality of the equipment: the adjustable support head can adapt to the lower end surface of steel support frames of different shapes and sizes, and the movable adjustment characteristic of the hydraulic lifting mechanism, so that the support device can be widely used in various types of tunnel arch replacement construction projects, without being limited by the specific specifications of the steel support frame, greatly improving the applicability and universality of the equipment, and reducing the cost of purchasing multiple special support equipment for construction enterprises due to different tunnel projects. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall schematic diagram of the present application;

[0017] Figure 2 is the side panel implementation schematic diagram of the present application;

[0018] Figures 3-4 is one kind of implementation schematic diagram of the upper support plate of the present application;

[0019] Figure 5 is another implementation schematic diagram of the upper support plate of the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the appendix Figures 1-5 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] This utility model provides an improved support device for tunnel arch replacement construction, such as... Figures 1-5 As shown, it can be implemented in the following manner: including a support frame 1, the upper surface of the upper support plate 2 of the support frame 1 is provided with two transverse grooves 3, each transverse groove 3 is provided with the same number of hydraulic lifting mechanisms 4, the top of the hydraulic lifting mechanism 4 is fixedly installed with a support block 6 for supporting the steel guard frame 5, the hydraulic lifting mechanism 4 can move in position in the transverse grooves 3 respectively, for supporting multiple steel guard frames 5 at different positions, and also for supporting adjacent steel guard frames 5.

[0022] like Figure 1 As shown, the support frame 1 has side panels 7 on both sides. The outer side of the side panel 7 has two side grooves 8. The side grooves 8 are provided with support rods 9 that can move horizontally along the side grooves 8 and are used to support the lower end of the steel guard frame 5.

[0023] In this application, a square positioning seat A10 is provided at the bottom of the hydraulic lifting mechanism 4. The lower end of the hydraulic lifting mechanism 4 is placed in the transverse groove 3 through the square positioning seat A10. The square positioning seat A10 can prevent the hydraulic lifting mechanism from tilting.

[0024] In implementation of this application, a square positioning seat B11 is provided at the bottom of the support rod 9, and the lower end of the support rod 9 is placed in the side groove 8 through the square positioning seat B11. The square positioning seat B11 can support the tilt of the rod 9.

[0025] in, Figures 3-4 This is a schematic diagram of one embodiment of the support plate in this application; it corresponds to two pairs of hydraulic lifting mechanisms 4, which can support two sets of steel guardrails 5.

[0026] and Figure 5 This is another schematic diagram of the support plate in this application, which has three pairs of hydraulic lifting mechanisms 4, capable of supporting three sets of steel guardrails 5.

[0027] The following is the specific implementation process of the principal and interest:

[0028] I. Assembly of the device: Construct the support frame 1, ensure that the two transverse grooves 3 of the upper support plate 2 and the side panels 7 and side grooves 8 on both sides meet the design requirements in terms of machining accuracy and surface flatness without defects. Install the square positioning seat A10 at the bottom of the hydraulic lifting mechanism 4, then place the hydraulic lifting mechanism 4 into the transverse groove 3 through the square positioning seat A10, so that it can slide smoothly in the groove without shaking or tilting. Connect the hydraulic pipeline of the hydraulic lifting mechanism 4 to the control system and perform preliminary lifting debugging to check whether the lifting action is smooth and accurate, and whether there are any abnormal conditions such as leakage. Fix the support block 6 on the top of the hydraulic lifting mechanism 4 and ensure that the arc-shaped groove or protruding structure on the support block 6 is accurately machined to fit well with the steel guard frame 5. Install the square positioning seat B11 at the bottom of the support rod 9, place the support rod 9 into the side groove 8 through the square positioning seat B11, ensure that it can move horizontally in the groove without tilting, and at the same time install an adjustable support head on the top of the support rod 9 and debug the adjustment function of the support head to make it flexible to adapt to the lower end surface of steel guard frame 5 of different shapes and sizes. Install the moving device at the bottom of the support frame 1, including rollers and braking mechanisms, check the rotation flexibility of the rollers and the braking reliability of the braking mechanisms, and ensure that the entire support device has good moving and positioning capabilities.

[0029] II. In-place stage in the tunnel: According to the planned position of the tunnel arch replacement construction, use the rollers at the bottom of the support frame 1 to push the support device to the designated location. During the pushing process, the operator needs to operate carefully to avoid colliding with the tunnel wall and other construction equipment, and at the same time pay attention to the travel route and surrounding environment of the support device.

[0030] When the support device reaches the predetermined position, start the braking mechanism to make the support device stay firmly in place, preparing for the support operation of the steel guard frame 5. At this time, check the connection status of each part and the overall stability again to ensure that there is no accidental displacement or shaking during the subsequent construction process.

[0031] III. Steel support frame supporting and adjusting stage: According to the layout and position requirements of the steel support frame 5, move the hydraulic lifting mechanism 4 in the transverse groove 3 to the appropriate position, so that the support block 6 at the top of the hydraulic lifting mechanism 4 can be aligned with the corresponding support point of the steel support frame 5, and then lock the position of the hydraulic lifting mechanism 4 to prevent it from moving during the supporting process. Start the hydraulic lifting mechanism 4 to lift the support block 6, so that it can contact the steel support frame 5 and provide initial supporting force. During the lifting process, through observation and measurement, ensure that the contact between the support block 6 and the steel support frame 5 is good and the force is evenly distributed. Move the support rod 9 in the side groove 8 on both sides of the support frame 1, so that the adjustable support head at the top of the support rod 9 can be aligned with the appropriate position at the lower end of the steel support frame 5, adjust the support head to tightly fit the lower end surface of the steel support frame 5, and then lock the position of the support rod 9. Further fine-tune the lifting height of the hydraulic lifting mechanism 4 and the supporting force of the support rod 9, and at the same time, monitoring devices can be installed on the hydraulic lifting mechanism 4 and the support rod 9 to monitor the stress of the steel support frame 5, to ensure that the stress of each part of the steel support frame 5 is evenly distributed and within the design allowable range. According to the stress data, if necessary, continue to fine-tune the hydraulic lifting mechanism 4 and the support rod 9 until the steel support frame 5 reaches the best supporting state.

[0032] IV. Tunnel arch replacement construction stage: Under the stable support of the support device for the steel support frame 5, the construction personnel begin to carry out tunnel arch replacement construction operations, including removing the original support structure, installing a new support structure, and other operations. During the construction process, the stress of the steel support frame 5 and the working state of each part of the support device are continuously monitored (or regularly checked manually) by the monitoring device. If abnormal changes in stress data or loosening, deformation, and other abnormal conditions of the support device are found, immediately stop the construction operation, check the reason and make corresponding adjustments or repairs to the support device, such as re-adjusting the height of the hydraulic lifting mechanism 4, tightening the connection parts of the support rod 9, etc., to restore the stable stress state of the steel support frame 5 and the normal work of the support device. With the gradual advancement of tunnel arch replacement construction, the position and supporting parameters of the support device are adjusted in a timely manner according to the construction progress and design requirements. For example, when a new steel support frame 5 needs to be supported or the position of the steel support frame 5 changes, repeat the operation of the above-mentioned steel support frame supporting and adjusting stage, so that the support device can always provide effective support for the tunnel arch replacement construction.

[0033] The above description of disclosed embodiments enables those skilled in the art to carry out or use 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 will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tunnel arch construction supporting device, characterized in that: it comprises a support frame (1), the upper support plate (2) of the support frame (1) is provided with two transverse grooves (3) on the upper surface; the same number of hydraulic lifting mechanisms (4) are arranged in each transverse groove (3), the top of the hydraulic lifting mechanism (4) is fixedly provided with a support block (6) for supporting a steel guard frame (5), and the hydraulic lifting mechanism (4) can move in position in the transverse groove (3) to support multiple steel guard frames (5) at different positions and adjacent steel guard frames (5).

2. The tunnel arching construction supporting device according to claim 1, characterized in that: The two side surfaces of the support frame (1) are respectively provided with side plates (7), the outer side surface of the side plate (7) is provided with two side grooves (8), the side groove (8) is provided with a support rod (9) which can move horizontally and is used for supporting the lower end of the steel guard frame (5).

3. The tunnel arching construction supporting device according to claim 1, characterized in that: The bottom of the hydraulic lifting mechanism (4) is provided with a square positioning seat A (10), the lower end of the hydraulic lifting mechanism (4) is placed in the transverse groove (3) through the square positioning seat A (10), and the square positioning seat A (10) is used to prevent the hydraulic lifting mechanism from tilting.

4. The tunnel arching construction supporting device according to claim 2, characterized in that: The bottom of the support rod (9) is provided with a square positioning seat B (11), the lower end of the support rod (9) is placed in the side groove (8) through the square positioning seat B (11), and the square positioning seat B (11) is used to prevent the support rod (9) from tilting.

5. The tunnel arching construction supporting device according to claim 1, wherein: The upper surface of the support block (6) has an arc-shaped groove or convex structure matched with the steel guard frame (5) to enhance the support stability of the steel guard frame (5).

6. The tunnel arching construction supporting device according to claim 1, wherein: The bottom of the support frame (1) is provided with a moving device, the moving device comprises a roller and a brake mechanism to facilitate the movement and positioning of the whole supporting device in the tunnel.

7. The tunnel arching construction supporting device according to claim 2, characterized in that: The top of the support rod (9) is provided with an adjustable support head, which can adapt to the lower end surface of steel guard frames (5) of different shapes and sizes, further improving the reliability and flexibility of the support.

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