Full-section partition maintenance trolley for tunnel

Abstract

The invention discloses a full-section partition maintenance trolley for a tunnel, which belongs to the technical field of tunnel maintenance and comprises a trolley body, a spraying trolley mechanism and a water supply mechanism. The system further comprises a water saturation rate detection device used for detecting the water saturation rate of the concrete surface, a water temperature detection device arranged on a water supply pipeline of the water supply mechanism and a control device, a quick heating device is further arranged at a water outlet of the water tank, and the control device is used for controlling the quick heating device when the water saturation rate, detected by the water saturation rate detection device, of the concrete surface is lower than a first set value. And controlling the water supply tank to supply water to the spraying pipeline, entering a maintenance state, controlling the trolley main body to operate according to a first set trolley speed, controlling the spraying trolley body to operate according to the first set trolley speed, and controlling the quick heating device to start when the pipeline water temperature detected by the water temperature detection device is smaller than the target maintenance temperature. Through the processes of autonomous detection, automatic judgment and autonomous maintenance, interference of human factors is avoided, and the maintenance quality of concrete is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel maintenance, and in particular to a full-section partition maintenance trolley for a tunnel. Background Art

[0002] The reason why reinforced concrete is widely used in tunnel construction is that it has the characteristics of "high strength and low cost", but this characteristic can only be guaranteed through standard maintenance. Relatively speaking, it is easier to maintain in a flat state, but more difficult to maintain in a curved state. For highway tunnels and railway tunnels, full-section maintenance must be achieved to ensure that the strength of the concrete meets the requirements. However, in actual operation, a large amount of manual multi-point timed water spraying is required for maintenance, which is bound to greatly increase the construction cost. Although there are clear specifications that should be followed for concrete maintenance during manual operation, such as "Concrete Structure Engineering Construction Code GB50666-2011", China State Railway Group Co., Ltd. Enterprise Standard Q / CR9250-2020, JTG H12-2015 Highway Tunnel Maintenance Technical Specifications, etc., this work content is based on manual completion, and different people will have different grasps of the standards. The subjective factors of manual operation may affect the effectiveness of the maintenance process, and thus the quality of concrete maintenance cannot be guaranteed.

[0003] Based on the above problems, in order to avoid the problem that the quality of concrete curing cannot be guaranteed by manual water spraying in the prior art, a spray mechanism of a curing trolley is designed in the prior art to replace the process of manual water spraying and curing. For example, a Chinese utility model patent with announcement number CN219548875U, announcement date 2023.08.18, and name "A spray mechanism of a curing trolley" discloses that a spray mechanism is arranged on the curing trolley, which can release water mist through the spray mechanism to spray maintenance on the concrete. However, the essence of the concrete curing process is the hydration process of concrete, and the temperature and humidity need to be kept unchanged during the curing. To address this problem, the prior art uses "artificially created hydration (curing) environment" to ensure the quality of concrete hydration (curing). For example, the Chinese invention patent application with publication number CN117189245A and publication date 2023.12.08, entitled "A telescopic steam curing trolley", performs curing operations by setting up multiple steam pipes and water mist pipes. However, since this curing trolley also includes a telescopic adjustment mechanism, the complexity of the structure is increased, which is not conducive to subsequent maintenance work. Although the equipment in the prior art avoids manual participation in the water spraying process, the time, location and duration of maintenance all need to be manually adjusted according to actual conditions. This process is still performed manually according to regulations or maintenance experience. Therefore, there will still be the influence of human factors, which in turn leads to the inability to guarantee the quality of concrete curing. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a full-section partitioned maintenance trolley for a tunnel, so as to solve the problem that it is difficult to ensure the quality of concrete curing during the concrete curing process of the existing maintenance trolley.

[0005] To achieve the above-mentioned purpose, the present invention provides a full-section partition maintenance trolley for a tunnel, comprising a trolley body, a spray trolley mechanism and a water supply mechanism, wherein a spray track for moving the spray trolley mechanism is arranged at the upper end of the trolley body, the spray trolley mechanism comprises a spray trolley body and a spray pipe arranged on the spray trolley body, the water supply mechanism comprises a water supply tank and a water supply pipeline connected to the outlet of the water supply tank, the water supply tank is arranged on the trolley body, a connector for connecting to the water supply pipeline and a plurality of spray heads are arranged on the spray pipeline, a saturation rate detection device for detecting the saturation rate of the concrete surface, and a water temperature detection device arranged on the water supply pipeline, a quick heating device is also arranged at the water outlet of the water tank, and a control device is also included, wherein the control device is used to execute instructions to implement the following steps:

[0006] When the saturation rate of the concrete surface detected by the saturation rate detection device is lower than the first set value, the water supply tank is controlled to supply water to the spray pipe through the water supply pipeline to enter the maintenance state, and the trolley body is controlled to run at the first set trolley speed, and the spray trolley body is controlled to run at the first set trolley speed;

[0007] In the maintenance state, when the pipeline water temperature detected by the water temperature detection device is lower than the target maintenance temperature, the quick heating device is controlled to start.

[0008] The beneficial effects are as follows: the present invention detects the water saturation rate of the concrete surface and the water temperature under the curing state by arranging a water saturation rate detection device and a water temperature detection device for detecting the water saturation rate of the concrete surface, and then can automatically control the start of the curing according to the acquired detection data, and maintain it in the required curing state, and this process does not require manual detection, nor does it require manual start, but is a process of automatic operation based on the detected data. Therefore, the process of autonomous detection and judgment, autonomous operation and autonomous curing of the present invention avoids the interference of human factors, ensures the curing quality of the concrete, and based on the rapid heating device arranged in the present invention, there is no need to heat the water to an excessively high temperature in the preheating water tank, the preheating water tank can be close to the ambient temperature, and instant heating can be performed according to the actual temperature of different areas, thereby reducing the use of electric energy.

[0009] Based on the above, in the maintenance state, when the saturation rate of the concrete surface detected by the saturation rate detection device is higher than the first set value, the control trolley body runs according to the second set trolley speed, and the spray trolley body runs according to the second set trolley speed. The second set trolley speed is greater than the first set trolley speed, and the second set trolley speed is greater than the first set trolley speed.

[0010] In order to ensure the required saturation conditions of concrete, the control strategy in the present invention is to control the running speed of the trolley while controlling the running speed of the spray trolley. Because the lower the saturation rate of the concrete, the more it is necessary to increase the spraying amount, so in the present invention, in order to meet the saturation environment required by the concrete, the spraying amount is controlled by controlling the running speed of the trolley and the spray trolley. Specifically, the running speed of the trolley and the spray trolley is increased when the saturation rate of the concrete surface is large. This process not only meets the saturation environment required by the concrete, but also improves the efficiency of the full-section maintenance process due to the increased running speed of the spray trolley.

[0011] Based on the above, the spray pipe includes at least one section of arch spray pipe and two sections of side wall spray pipes arranged on both sides of the arch spray pipe. The arch spray pipe and the side wall spray pipe are both provided with connectors for connecting to the water supply pipe and a plurality of spray heads. The water supply pipe connected to the connector of the arch spray pipe and the water supply pipe connected to the connector of the side wall spray pipe are connected to the same water supply tank through different water tank outlets, and each water tank outlet is provided with a quick heating device.

[0012] In the present invention, according to the location of tunnel maintenance, that is, including arch maintenance and side wall maintenance, arch spray pipes and side wall spray pipes are respectively arranged, and each section of the spray pipe is connected to different water outlets of the same water tank through a water supply pipeline. Based on this arrangement, the quick heating device arranged on the corresponding water outlet can be controlled according to different water temperature requirements, and based on the process of setting the quick heating device at each water outlet, the situation that a corresponding water supply tank needs to be separately arranged for each section of the spray pipe due to different requirements is avoided, that is, the space cost of the water tank setting occupying the maintenance trolley is reduced.

[0013] Based on the above, the operating power of the quick heating device is proportional to the difference between the target curing temperature and the pipeline water temperature, so as to heat the pipeline water temperature to within the set range of the target curing water temperature;

[0014] The vault area and the side wall area correspond to different target curing temperatures. The target curing temperature of the vault area is determined according to the actual temperature of the vault area, and the target curing temperature of the side wall area is determined according to the actual temperature of the side wall area.

[0015] First, in order to ensure the hydration (curing) environment of concrete, it is necessary to ensure that the temperature and saturation rate during the curing stage remain unchanged. In the present invention, the operating power of the quick heating device is controlled according to the difference between the curing water temperature and the actually required water temperature (i.e., the target curing water temperature). That is, the greater the temperature that the curing water temperature needs to be raised, the greater the operating power of the quick heating device. This method ensures that the curing water temperature reaches the set value while avoiding the situation where the curing water temperature suddenly changes and affects the curing quality of the concrete, thereby ensuring the curing quality of the concrete. Secondly, in the present invention, the target curing temperature of different areas is determined according to the actual conditions of different areas, and different water supply pipelines correspond to different curing areas. Quick heating devices are separately provided on different water supply pipelines. Therefore, it is possible to achieve corresponding control of the quick heating devices corresponding to different areas according to the actual conditions of different areas, so as to achieve the effect of zoned temperature control. Furthermore, in the present invention, the pipeline water temperature is heated to the set range of the target curing water temperature through a rapid heating device, wherein the set range of the target curing water temperature in the present invention is [target curing water temperature -10°C, target curing water temperature +10°C], that is, the pipeline water temperature is heated to a temperature range that is 10°C different from the target curing water temperature to achieve the temperature requirements for the curing stage.

[0016] Based on the above, it also includes a distance measuring sensor for detecting the distance between the edge of the trolley body and the side walls on both sides. In the maintenance state, when the difference in the distance between the trolley body and the side walls on both sides detected by the distance measuring sensor is greater than the set first distance, the control trolley is controlled to offset to the side wall with a larger distance from the side wall.

[0017] In order to ensure the stability of the running track of the maintenance trolley in the present invention, a sensor for measuring whether the maintenance trolley deviates from the center track is also provided on the maintenance trolley. The sensor is a distance measuring sensor. When the present invention detects deviation from the center track, the maintenance trolley is automatically corrected, thereby ensuring the safe operation of the maintenance trolley in the maintenance state.

[0018] Based on the above, it also includes a distance measuring sensor and a buzzer alarm arranged in front of the trolley body. In the maintenance state, when the distance measuring sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set second distance, the buzzer alarm is controlled to turn on.

[0019] In order to ensure the safe operation of the maintenance trolley in the present invention, a distance measuring sensor is arranged at the front end of the trolley body with the trolley running direction as the front. Therefore, it can be detected by the distance measuring sensor whether there is an obstacle between the front end of the trolley body and the position to be reached. If an obstacle is detected, a buzzer alarm is used to warn the staff to clear the obstacle in an alert manner, thereby ensuring the safe operation of the maintenance trolley.

[0020] Based on the above, in the maintenance state, when the ranging sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set second distance and greater than the set third distance, the trolley body is controlled to reduce the running speed; when the ranging sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set third distance, the trolley body is controlled to stop running.

[0021] The present invention not only increases the operation safety of the maintenance trolley by setting a buzzer alarm device to remind human intervention, but also controls the operation of the trolley body accordingly according to the distance between the trolley body and the obstacle. Specifically, the present invention divides the distance between the trolley and the obstacle into three situations by setting the second distance and setting the third distance (setting the second distance to be greater than the third distance). The first situation is that the distance to the obstacle is greater than the set second distance (far away from the obstacle), the second situation is that the distance to the obstacle is less than the set second distance and greater than the set third distance (about to approach the obstacle), and the third situation is that the distance to the obstacle is less than the set third distance. (too close to the obstacle), the risk of the trolley colliding with the obstacle gradually increases in the first to third cases. Therefore, the present invention adopts the method of first non-interference, then intervention deceleration and finally intervention stop to ensure the safe operation of the maintenance trolley. That is, the present invention actively controls the running speed of the trolley body according to the detected distance information until the trolley body stops safely, which further increases the safety of the trolley maintenance process. If the trolley stops due to an obstacle, in order to avoid excessive maintenance of the concrete at the same position, the maintenance state is also stopped accordingly when the trolley stops. Therefore, the present invention ensures the maintenance quality of the concrete while ensuring the safety of the trolley operation.

[0022] Based on the above, the spray pipe includes two sections of water inlet pipe blocks at the head and tail and several sections of spray pipe blocks arranged between the two sections of water inlet pipe blocks. Each water inlet pipe block and spray pipe block includes an inlet pipe and a spray pipe arranged inside. The spray pipe is arranged above the water inlet pipe. The spray pipe is connected to the spray pipe. The connecting head is connected to the water inlet pipe on the water inlet pipe block. The water inlet pipe is arranged as two independent routes, and each water inlet pipe is provided with a connecting head for connecting different water tank outlets. The two water inlet pipes are respectively connected to the water inlet pipe blocks of different sections and the spray pipes of the spray pipe blocks through the notch, and a flow meter is arranged on the water supply pipe.

[0023] The spray pipe arrangement in the present invention can realize that the water inlet pipe block can be connected to two water sources of different temperatures, and the different positions of the water inlet pipes connected by the gaps make the water flow through the water supply pipe and enter the spray pipe of the corresponding section above through the gaps for spraying. The gaps between the spray pipe and different water inlet pipes are matched to control the water flow from different temperature sources to enter the spray pipe, realize spraying in different areas, and control the flow direction of the water in the entire pipe. Therefore, the spray pipe arrangement of the present invention meets the maintenance requirements of different areas and different temperatures. Different matching schemes can be selected for the overall pipe, so that only one maintenance pipe can be installed to maintain different areas and different temperatures for the entire section. In addition, by setting a flow meter, the water consumption during the maintenance process can be recorded, the use of water resources during the maintenance process can be better monitored, the maintenance cost can be reduced while avoiding unnecessary waste, thereby optimizing the maintenance process, improving the overall maintenance efficiency, and by analyzing the water consumption data, problems in equipment operation can be discovered and solved in a timely manner, reducing downtime caused by equipment failure, and extending the service life of the equipment.

[0024] Based on the above, the power mechanism of the spray trolley body is a gear shaft and a rack connected to the gear shaft. The gear shaft is arranged on the spray trolley body, and a rack base is arranged on the trolley body. The rack base is fixedly connected to the rack, and the rack base is fixedly connected to the crossbeam of the trolley body through a pressure plate.

[0025] The power source of the spray trolley body of the present invention is the rack and the gear shaft. The rack is fixedly connected to the rack seat. The fixed seat is installed on the short cross beam. It is pressed and adjusted left and right through the pressure plate. Therefore, this setting of the present invention can adjust the position of the spray trolley body left and right according to needs to meet different needs.

[0026] Based on the above, a platform assembly is provided on the trolley body, and quick-insert handrails are provided on both sides of the platform assembly.

[0027] The present invention takes into account that the maintenance trolley is not only in a maintenance state, but also in a repair state. Therefore, the present invention provides a quick-insert handrail on the platform assembly of the trolley body. When the trolley is in a maintenance state, the handrail is quickly removed and placed flat on the nearest workbench. At this time, there is no personnel working on the stand, and the spray trolley moves automatically to achieve spray maintenance. When spray maintenance is not required, the spray trolley can be stopped at any position outside the platform, and the stand handrail can be quickly installed, which is convenient for personnel to work safely.

[0028] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the full-section maintenance trolley for tunnels of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the spray trolley assembly of the present invention.

[0031] Figure 3 It is a schematic structural diagram of the quick-insert handrail of the present invention.

[0032] Figure 4 It is a schematic diagram of the adjustable mechanism of the rack track seat of the present invention.

[0033] Figure 5 It is a schematic diagram of the maintenance status of the maintenance trolley of the present invention.

[0034] Figure 6 It is a schematic diagram of the structure and implementation of the spray trolley of the present invention.

[0035] Figure 7 The figure is a schematic diagram of the structure and implementation of the quick-insert handrail of the present invention.

[0036] Figure 8 It is a schematic diagram of the hydraulic steering structure and implementation method of the walking part of the present invention.

[0037] Fig. 9 It is a schematic diagram of the maintenance state of the maintenance trolley of the present invention.

[0038] Fig.10 It is a schematic diagram of the structure of the spray pipeline of the present invention.

[0039] In the figure: 1-driving wheel assembly; 2-stand assembly; 3-platform assembly; 4-spray track; 5-spray trolley assembly; 501-gear shaft; 502-V-wheel set; 503-support wheel seat; 504-rack base; 505-wheel seat adjustment; 506-driving reduction motor; 507-plate groove; 508-spray rack; 509-drag chain; 510-base connection; 511 rack; 6-inclined ladder assembly; 7-hydraulic steering wheel assembly; 8-casing; 9-handrail; 10-pressing plate; 11-standard parts; 12-short crossbeam; 131-water inlet pipeline fast; 132-spray pipeline block; 133-water inlet; 134-spray outlet; 135-spray pipeline; 136-water inlet pipeline; 137-gap. DETAILED DESCRIPTION

[0040] The technical scheme of the present invention will be clearly and completely described below in conjunction with specific embodiments, but those skilled in the art should understand that the embodiments described below are only used to illustrate the present invention and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Embodiment of full-section partition maintenance trolley for tunnel

[0042] The maintenance trolley of this embodiment detects the local temperature and saturation rate, and the system automatically calculates the most suitable maintenance / interval time, eliminating human factors and ensuring the quality of concrete maintenance. The maintenance trolley of this embodiment detects the condition of the secondary lining concrete in real time through a variety of different types of sensors. Based on the collected data, the control system independently determines the best parameters such as maintenance time, maintenance speed and maintenance water pressure, realizing an unmanned maintenance mode without human intervention, ensuring the quality of concrete maintenance.

[0043] like Figure 1 As shown, the maintenance trolley of this embodiment includes a trolley body ( Figure 1 The driving wheel assembly 1, the stand assembly 2, the platform assembly 3, the spray track 4, the inclined ladder assembly 6 and the hydraulic steering wheel assembly 7 are all components of the trolley body), the spray trolley mechanism (such as Figure 1 The spray trolley assembly 5 in the embodiment is shown) and a water supply mechanism. The upper end of the trolley body is provided with a spray track 4 for moving the spray trolley mechanism. The spray trolley mechanism of this embodiment includes a spray trolley body and a spray pipe arranged on the spray trolley body, such as Figure 2 as well as Figure 6 As shown, the spray trolley mechanism of this embodiment includes a V-shaped wheel set 502 and angle steel for moving the trolley, a rack base 504 fixed on the trolley main body cross beam, a base connection 510 is provided on the rack base 504, a rack 511 is fixedly connected to the rack base 504, the rack 511 and the gear shaft 501 constitute the power source of the spray trolley mechanism, and are driven by the drive reduction motor 506. A plate groove 507 is also provided on the trolley main body cross beam for inserting the drag chain 509. The spray trolley assembly also includes a supporting wheel seat 503, a wheel seat adjustment 505 and a spray frame 508.

[0044] The maintenance trolley of this embodiment also includes a saturation rate detection device for detecting the saturation rate of the concrete surface, a water temperature detection device arranged on the water supply pipeline, and a control system. A quick heating device is also arranged at the water outlet of the water tank. Through the detection data obtained in this embodiment, the control system can control the maintenance process under specific circumstances.

[0045] The specific control process of this embodiment is as follows:

[0046] 1) Perform corresponding control according to the saturation rate: when the saturation rate of the concrete surface detected by the saturation rate detection device is lower than the first set value, control the water supply tank to supply water to the spray pipe through the water supply pipeline to enter the maintenance state, and control the trolley body to run at the first set trolley speed, and the spray trolley body to run at the first set trolley speed. In the maintenance state, when the saturation rate of the concrete surface detected by the saturation rate detection device is higher than the first set value, control the trolley body to run at the second set trolley speed, and the spray trolley body to run at the second set trolley speed, the second set trolley speed is greater than the first set trolley speed, and the second set trolley speed is greater than the first set trolley speed.

[0047] Specifically, this embodiment automatically starts maintenance according to the surface water saturation rate, and controls the travel speed of the maintenance trolley according to the real-time monitored surface water saturation rate. As other implementations, multiple cycles of maintenance can also be performed according to the maintenance parameters actually set by the customer. When the surface water saturation rate of the concrete is lower than 95% (i.e., the first set value is set to 95% in this embodiment), maintenance is automatically started, the stand maintenance mode, the stand travel speed is 3-6m / min (i.e., the first set trolley speed), the arch maintenance mode, the arch trolley travel speed is 4-6m / min (i.e., the first set trolley speed), in the maintenance state, when the surface water saturation rate of the concrete is lower than 95%, the travel speed of the maintenance trolley is reduced by 30%, and when the surface water saturation rate of the concrete is higher than 95%, the maintenance trolley travels at normal speed (i.e., it runs according to the second set trolley speed and the second set trolley speed). Ensure that the surface water saturation rate of the concrete is controlled above 90%. Prevent the saturation rate from being too low and affecting the stability of the concrete.

[0048] The saturation rate detection device used in this embodiment is a contact resistance meter. A 10V voltage is sent to the concrete surface through the control box of the tunnel full-section partition maintenance trolley. The resistance value is calculated by the detected current value, and the concrete saturation rate is converted according to the resistance value.

[0049] 2) Control accordingly according to temperature:

[0050] In the maintenance state, when the pipeline water temperature detected by the water temperature detection device is lower than the target maintenance temperature, the quick heating device is controlled to start. The operating power of the quick heating device is proportional to the difference between the target maintenance temperature and the pipeline water temperature, so as to heat the pipeline water temperature to the set range of the target maintenance water temperature. In this embodiment, the set range of the target maintenance water temperature is [target maintenance water temperature -10°C, target maintenance water temperature +10°C].

[0051] Specifically, in this embodiment, when the difference between the pipeline water temperature and the target maintenance temperature is 10°C, the rapid heating device operates at full power, when the difference between the pipeline water temperature and the target maintenance temperature is 7°C, the rapid heating power is 70% for heating, when the difference between the pipeline water temperature and the target maintenance temperature is 5°C, the rapid heating power is 50% for heating, and when the difference between the pipeline water temperature and the target maintenance temperature is 2°C, the rapid heating power is 30%, and the pipeline water temperature is heated to a temperature range of 10°C different from the target maintenance water temperature to meet the temperature requirements of the maintenance stage.

[0052] The water supply mechanism of this embodiment includes a water supply tank and a water supply pipeline connected to the outlet of the water supply tank. The water supply tank is arranged on the trolley body. The spray pipe is provided with a connector for connecting to the water supply pipeline and a plurality of spray heads. Considering that the locations of tunnel maintenance include arch maintenance and side wall maintenance, it is necessary to automatically zone the maintenance water temperature to achieve spray maintenance at different temperatures at different locations and improve the strength and durability of concrete. Therefore, the spray pipe of this embodiment includes at least one arch spray pipe section and two side wall spray pipe sections arranged on both sides of the arch spray pipe. The arch spray pipe and the side wall spray pipe are both provided with a connector for connecting to the water supply pipeline and a plurality of spray heads. The water supply pipeline connected to the connector of the arch spray pipe and the water supply pipeline connected to the connector of the side wall spray pipe are connected to the same water supply tank through different water tank outlets, and each water tank outlet is provided with a quick heating device. Based on this setting, it is possible to reduce the need to configure multiple water tanks due to different actual temperatures at different locations, and also solve the problem that the water temperature cannot reach the specified temperature when the quick heating device is used directly. That is, this setting of the present embodiment can correspond to different target curing temperatures according to the different needs of each curing location, and then control the quick heating device at the outlet of the corresponding water tank according to the target curing temperature at different locations to increase the water temperature. Moreover, based on the setting of the quick heating device, it is not necessary to heat the water to too high a temperature in the preheating water tank. The preheating water tank can be close to the ambient temperature, and it can be heated instantly according to the actual temperature of different areas, reducing the use of electricity. As an implementation method, it is possible to detect the temperature of each area of ​​the vault and side walls by setting multiple temperature real-time data detection devices on the curing trolley, and then determine the target curing temperature of each area through the real-time temperature of multiple points, and then automatically control the curing water temperature in different zones, so as to achieve spray curing of different temperatures at different locations and improve the strength and durability of concrete.

[0053] like Fig.10The schematic diagram of the structure of the spray pipe used in this embodiment includes two sections of water inlet pipe blocks 131 at the beginning and the end and a plurality of spray pipe blocks 132 arranged between the water inlet pipe blocks. Each water inlet pipe block 131 and the spray pipe block 132 includes a water inlet pipe 136 and a spray pipe 135 arranged inside the pipe block, and the spray pipe is arranged above the water inlet pipe. The spray pipe and the water inlet pipe divide the inside of the pipe block into two parts, and the water in the water inlet pipe enters the spray pipe by setting a notch 137 between the spray pipe and the water inlet pipe. The water in the water inlet pipe enters the spray pipe. The water inlet pipe block 131 and the spray pipe block 132 are provided with a notch 136 and a notch 135 arranged above the spray pipe. A spray port 134 (also known as a spray head) is connected to the water inlet pipe, and a water inlet 133 connected to the water inlet pipe is also provided below the water inlet pipe block 131 (the water inlet 133 is the connector described above for connecting to the water supply pipe). The water inlet pipe in this embodiment is arranged as two mutually unconnected routes, and each water inlet pipe is provided with a water inlet, and the water inlets of different water inlet pipes are used to connect to different water tank outlets, and a notch 137 is provided between the spray pipe of each water inlet pipe block or the spray pipe block and only one of the water inlet pipes. In this embodiment, the notch is provided at the joints of the water inlet pipe block and the spray pipe block and between the spray pipe block and the spray pipe block.

[0054] Based on the spray pipe setting of the present embodiment, it can be achieved that the water inlet pipe block can be connected to two water sources with different temperatures, and multiple spray pipe blocks are matched in the middle. Notches are set at the joints of each pipe block. Water flows through the water supply pipe and enters the spray pipe above through the notch for spraying. The notch setting between the spray pipe and different water inlet pipes can control the water flows from different temperature sources to enter the spray pipe, realize spraying in different areas, and control the water flow direction of the entire pipe. Therefore, the spray pipe setting of the present embodiment meets the maintenance needs of different areas and different temperatures. Different matching schemes can be selected for the overall pipeline, so that only one maintenance pipeline is installed to maintain the entire section in different areas and at different temperatures.

[0055] The spray head of this embodiment uses a universal nozzle or a metal universal adjustment hose, and the spray direction and spray height can be manually adjusted. The pipeline in this embodiment is also provided with an air source drainage device to prevent water in the pipeline from cooling down and freezing and long-term accumulation of scale.

[0056] The present embodiment also takes into account the safe operation of the maintenance trolley during the maintenance process. In order to ensure its safe operation, an automatic deviation correction function and an obstacle avoidance function are also provided. That is, the present embodiment provides a distance measuring sensor for detecting the distance between the edge of the trolley body and the side walls on both sides. In the maintenance state, when the difference between the distance between the trolley body and the side walls on both sides detected by the distance measuring sensor is greater than the set first distance, the control trolley is shifted to the side wall with a larger distance from the side wall to ensure that it runs in the center position without any danger of collision with the side wall.

[0057] The specific automatic correction process of this embodiment is to use a high-precision distance measuring sensor to accurately detect the distance between the trolley and the two side walls. When the absolute value of the left and right difference is greater than 100mm (that is, the first distance is set to 100mm in this embodiment), the walking direction is automatically corrected according to the detected distance to ensure that the maintenance trolley walks in the center of the tunnel.

[0058] The obstacle avoidance function of this embodiment is to set a distance sensor and a buzzer alarm in front of the trolley body. In the maintenance state, when the distance sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set second distance, the buzzer alarm is controlled to turn on. And when the distance sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set second distance and greater than the set third distance, the trolley body is also controlled to reduce the running speed. When the distance sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set third distance, the trolley body is also controlled to stop running.

[0059] The distance measuring sensor used to realize the obstacle avoidance function in this embodiment can be a 15° wide-angle radar distance measuring sensor to detect obstacles in the walking direction, or a laser distance measuring sensor can be used. When the laser distance measuring sensor is used, it can still accurately detect obstacles in harsh conditions such as dust in the tunnel and heavy water mist during maintenance, thereby ensuring the safety of personnel and equipment. The specific control strategies include: when an obstacle is detected, when the distance between the platform and the obstacle is within 1.5 meters to 2 meters (that is, the distance is less than the set second distance and greater than the set third distance), the equipment buzzes an alarm to remind, and a yellow light flashes as an indication, and the walking speed is reduced by 20%; when the distance between the platform and the obstacle is less than 1.5 meters, the platform is suspended, the spray system is turned off, and a buzzer alarm is sounded (a reminder when the buzzer frequency is higher than 1.5 meters to 2 meters) and a red light flashes as an indication; in order to improve the maintenance efficiency, in this embodiment, when the obstacle is removed within a specific time range (for example, within 5 minutes), the platform will automatically resume walking and the spraying system. If the obstacle is still there within the specific time range (for example, within 5 minutes), the system will stop the overall operation, and after the obstacle is removed, the maintenance system will be manually started.

[0060] This embodiment also sets a flow meter to record the water consumption during the maintenance process, so as to better monitor the use of water resources during the maintenance process, reduce maintenance costs and avoid unnecessary waste, thereby optimizing the maintenance process and improving the overall maintenance efficiency. In addition, by analyzing the water consumption data, problems in equipment operation can be discovered and resolved in a timely manner, reducing downtime caused by equipment failure and extending the service life of the equipment.

[0061] The spray trolley of this embodiment can also be adjusted to the left and right positions. The power mechanism of the spray trolley body of this embodiment is a gear shaft and a rack connected to the gear shaft. The gear shaft is arranged on the spray trolley body, and a rack base is arranged on the trolley body. The rack base is fixedly connected to the rack, and the rack base is fixedly connected to the crossbeam of the trolley body through a pressure plate. Figure 4 The standard part 11 cooperates with the pressure plate 10 to realize the pressing and the left and right adjustment on the short cross beam 12. Therefore, this arrangement of the present invention can adjust the position of the spray trolley body to the left and right according to the needs to meet different needs.

[0062] This embodiment also takes into account that the maintenance trolley not only exists in a maintenance state, but also in a repair state. Therefore, a quick-insert handrail is provided on the platform component of the trolley body, such as Figure 3 and Figure 7 As shown, it includes a handrail 9 and a sleeve 8 for inserting the handrail 9. When the trolley is in the maintenance state, the handrail is quickly removed and placed flat on the nearest workbench. At this time, there is no one working on the trolley, and the spray trolley automatically moves to achieve spray maintenance. When spray maintenance is not required, the spray trolley can be stopped at any position outside the platform, and the trolley handrail can be quickly installed, which is convenient for personnel to work safely. Figure 5 and Fig. 9 It is a schematic diagram of the maintenance trolley in different states.

[0063] The steering of the trolley body in this embodiment is achieved by hydraulic power steering. The hydraulic steering structure and implementation method of the walking part are as follows: Figure 8 Hydraulic steering is achieved by utilizing “eccentricity”, which is compact in structure and reliable in operation. That is, the power of hydraulic steering comes from the hydraulic cylinder, and the action point of the hydraulic cylinder is at a certain distance from the center of rotation. This distance is related to the required steering torque.

[0064] This embodiment is a special research and development of an energy-saving and isothermal lining split intelligent maintenance trolley system for the existing vault and side wall linings that are cast separately. The system is divided into two modes: trolley maintenance and vault maintenance. Through a high-precision infrared monitoring device, the temperature of multiple places of the concrete is monitored, and the water temperature is automatically adjusted according to the concrete temperature to achieve isothermal maintenance. Too low or too high water temperature will cause a large temperature difference between the core and the surface of the concrete, reducing the strength of the concrete. This embodiment detects the saturation rate of the concrete surface and the water temperature under the maintenance state by setting a saturation rate detection device and a water temperature detection device for detecting the saturation rate of the concrete surface, and then can automatically control the maintenance start according to the acquired detection data, and maintain it in the required maintenance state. This process does not require manual detection or manual start, but is a process of automatic operation based on the detected data. Therefore, the process of autonomous detection, judgment, autonomous operation and autonomous maintenance of the present invention avoids the interference of human factors and ensures the maintenance quality of concrete.

[0065] The maintenance trolley equipment of this embodiment is equipped with obstacle avoidance and deviation correction functions. No personnel supervision is required during maintenance. Maintenance is automatically carried out according to the set cycle time and number of cycles. An alarm is given after the maintenance is completed, thereby avoiding the situation where the hydration progress of cement particles is seriously affected due to factors such as immature concrete curing technology, lack of attention to curing work, untimely concrete curing, and inadequate curing, and avoiding the situation where the strength and durability of concrete are not ideal due to inadequate curing.

[0066] The maintenance trolley of this embodiment also adopts an advanced ultra-low power consumption flow meter to accurately record the amount of water used to maintain each plate, thereby better monitoring the use of water resources during the maintenance process, reducing maintenance costs while avoiding unnecessary waste, thereby optimizing the maintenance process and improving overall maintenance efficiency. In addition, by analyzing water consumption data, problems in equipment operation can be discovered and resolved in a timely manner, reducing downtime caused by equipment failure and extending the service life of the equipment.

[0067] The maintenance trolley of this embodiment adopts a spray maintenance method, which can significantly reduce water consumption. This maintenance method improves water utilization efficiency and reduces unnecessary waste by atomizing water into fine droplets and spraying them evenly on the surface that needs maintenance. Compared with traditional watering methods, spray maintenance can more accurately control the amount of water and the maintenance area, achieve better maintenance effects, and is also more environmentally friendly and economical. In addition, the maintenance trolley of this embodiment has a relatively simple structure, and the functions of each part are clear, so it is convenient for later maintenance.

[0068] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A full-section partition maintenance trolley for a tunnel, comprising a trolley body, a spray trolley mechanism and a water supply mechanism, wherein the upper end of the trolley body is provided with a spray track for moving the spray trolley mechanism, the spray trolley mechanism comprises a spray trolley body and a spray pipe arranged on the spray trolley body, the water supply mechanism comprises a water supply tank and a water supply pipeline connected to the outlet of the water supply tank, the water supply tank is arranged on the trolley body, the spray pipeline is provided with a connector for connecting to the water supply pipeline and a plurality of spray heads, characterized in that: It also includes a saturation rate detection device for detecting the saturation rate of the concrete surface, and a water temperature detection device arranged on the water supply pipeline. A quick heating device is also arranged at the water outlet of the water tank. It also includes a control device, which is used to execute instructions to implement the following steps: When the saturation rate of the concrete surface detected by the saturation rate detection device is lower than the first set value, the water supply tank is controlled to supply water to the spray pipe through the water supply pipeline to enter the maintenance state, and the trolley body is controlled to run at the first set trolley speed, and the spray trolley body is controlled to run at the first set trolley speed; In the maintenance state, when the pipeline water temperature detected by the water temperature detection device is lower than the target maintenance temperature, the quick heating device is controlled to start.

2. The full-section zoning maintenance trolley for tunnel according to claim 1, characterized in that: In the maintenance state, when the saturation rate of the concrete surface detected by the saturation rate detection device is higher than the first set value, the control trolley body runs according to the second set trolley speed, and the spray trolley body runs according to the second set trolley speed. The second set trolley speed is greater than the first set trolley speed. The second set trolley speed is greater than the first set trolley speed.

3. The full-section zoning maintenance trolley for tunnel according to claim 1, characterized in that: The spray pipe includes at least one section of arch area spray pipe and side wall area spray pipes arranged on both sides of the arch area spray pipe. The arch area spray pipe and the side wall area spray pipe are both provided with connectors for connecting to the water supply pipe and a plurality of spray heads. The water supply pipe connected to the connector of the arch area spray pipe and the water supply pipe connected to the connector of the side wall area spray pipe are connected to the same water supply tank through different water tank outlets, and each water tank outlet is provided with a quick heating device.

4. The full-section zoning maintenance trolley for tunnel according to claim 3 is characterized in that: The operating power of the quick heating device is proportional to the difference between the target curing temperature and the pipeline water temperature, so as to heat the pipeline water temperature to a set range within which the target curing water temperature is located; The vault area and the side wall area correspond to different target curing temperatures. The target curing temperature of the vault area is determined according to the actual temperature of the vault area, and the target curing temperature of the side wall area is determined according to the actual temperature of the side wall area.

5. The full-section zoning maintenance trolley for tunnel according to claim 1, characterized in that: It also includes a distance measuring sensor for detecting the distance between the edge of the trolley body and the side walls on both sides. In the maintenance state, when the difference between the distance between the trolley body and the side walls on both sides detected by the distance measuring sensor is greater than the set first distance, the trolley is controlled to shift to the side wall with a larger distance from the side wall.

6. The full-section zoning maintenance trolley for tunnel according to claim 1, characterized in that: It also includes a distance measuring sensor and a buzzer alarm arranged in front of the trolley body. In the maintenance state, when the distance measuring sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set second distance, the buzzer alarm is controlled to turn on.

7. The full-section zoning maintenance trolley for a tunnel according to claim 6, characterized in that: In the maintenance state, when the distance measuring sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set second distance and greater than the set third distance, the trolley body is controlled to reduce the running speed. When the distance measuring sensor detects that the distance between the front end of the trolley body and the obstacle is less than the set third distance, the trolley body is controlled to stop running.

8. The full-section zoning maintenance trolley for tunnel according to claim 1, characterized in that: The spray pipeline includes two sections of water inlet pipeline blocks at the head and tail and several sections of spray pipeline blocks arranged between the two sections of water inlet pipeline blocks. Each water inlet pipeline block and spray pipeline block includes an inlet pipeline and a spray pipeline arranged inside. The spray pipeline is arranged above the water inlet pipeline. The spray pipeline is connected to the spray pipeline. The connecting head is connected to the water inlet pipeline on the water inlet pipeline block. The water inlet pipeline is arranged into two independent routes, and each water inlet pipeline is provided with a connecting head for connecting different water tank outlets. The two water inlet pipelines are respectively connected to the water inlet pipeline blocks of different sections and the spray pipelines of the spray pipeline blocks through the notch. A flow meter is arranged on the water supply pipeline.

9. The full-section zoning maintenance trolley for a tunnel according to claim 1, characterized in that: The power mechanism of the spray trolley body is a gear shaft and a rack connected to the gear shaft. The gear shaft is arranged on the spray trolley body. A rack base is arranged on the trolley body. The rack base is fixedly connected to the rack. The rack base is fixedly connected to the crossbeam of the trolley body through a pressure plate.

10. The full-section zoning maintenance trolley for a tunnel according to claim 1, characterized in that: A platform component is arranged on the trolley body, and quick-insert handrails are arranged on both sides of the platform component.

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