Emergency drainage system, remote control system and design method for underground comprehensive pipe gallery

Abstract

The application discloses an underground comprehensive pipe gallery emergency drainage system and a calculation method, and belongs to the technical field of urban underground comprehensive pipe gallery drainage. The underground comprehensive pipe gallery emergency drainage design method firstly determines drainage types and calculates a total design drainage amount, including water inflow at a pipe gallery opening, leakage water flow at a pipe gallery structure joint, flushing drainage flow in the pipe gallery, maintenance and emptying drainage flow and water supply pipeline burst drainage flow; then, based on the total drainage amount, a water pump and a drainage design target are considered, and a corresponding management and alarm mechanism is set. In order to realize intelligence, the application provides a remote control system for the designed pipe gallery emergency drainage system, and realizes intelligent management.

Description

Technical Field

[0001] The present invention belongs to the technical field of underground integrated pipe gallery drainage, and in particular relates to an underground integrated pipe gallery emergency drainage system, a remote control system and a design method. Background Art

[0002] An urban underground integrated pipeline corridor refers to a structure built underground in a city for the centralized laying of various municipal pipelines such as electricity, communications, water supply, drainage, heat, and gas. It not only effectively solves problems such as disorganized urban pipelines, repeated excavation, and difficult maintenance, but also improves the utilization efficiency of urban space and beautifies the urban environment. However, in the construction and operation of integrated pipeline corridors, emergency drainage design is an issue that cannot be ignored. Since the pipeline corridor integrates a variety of municipal pipelines and the pipeline corridor itself is underground, once it encounters extreme weather, geological disasters or other emergencies, it is likely to cause water accumulation inside the pipeline corridor, which in turn affects the normal operation of the pipelines in the pipeline corridor and even causes safety accidents.

[0003] Existing technologies for emergency drainage design in urban underground utility corridors are relatively limited and lack systematic and in-depth research. Existing management systems often only consider drainage needs under normal circumstances, while ignoring emergency drainage measures in emergencies. As a result, utility corridor drainage systems often fail to meet actual needs during emergencies, posing a risk to the safe operation of the city. Therefore, developing a scientific and systematic calculation method and system for emergency drainage systems in underground utility corridors is crucial for improving the safety and reliability of utility corridors. Summary of the Invention

[0004] The purpose of the present invention is to provide an underground integrated pipe gallery emergency drainage system, a remote control system and a design method, aiming to solve the problem that when existing urban underground integrated pipe gallery encounters an emergency incident, especially when the water supply pipe bursts, it will cause great safety hazards to other power supply facilities in the pipe gallery, and further improve the safety and reliability of the pipe gallery.

[0005] Technical solution: A design method for emergency drainage of an underground integrated pipe gallery, comprising the following steps:

[0006] S1. Determine the drainage type and calculate the total designed drainage volume, including the water inflow at the tunnel opening, the water leakage flow at the tunnel structure joints, the drainage flow for flushing inside the tunnel, the drainage flow for maintenance and venting, and the drainage flow for burst pipes in the water supply pipelines;

[0007] The calculation corresponding to the water inlet flow at the pipe gallery opening is:

[0008] Q 进 =S*q

[0009]

[0010] Where Q 进 is the water flow rate at the tunnel opening, S is the area of ​​the tunnel opening, A is the empirical coefficient, q is the rainfall intensity, P is the design return period in years, and t is the rainfall duration. The water flow rate at the tunnel opening is calculated based on the product of rainfall intensity and ventilation opening area.

[0011] The calculation corresponding to the leakage flow rate at the pipe gallery structure seam is:

[0012] Q 漏 =B*q 漏 Where Q 漏 is the leakage volume, B is the leakage area of ​​the pipe gallery, q 漏 is the average water infiltration rate;

[0013] The calculation corresponding to the flushing drainage flow in the pipe gallery is:

[0014]

[0015] Where Q 冲 is the water volume of a single flushing of the pipe gallery, q 冲 is the single flushing water volume, C is the designed area of ​​the pipe gallery;

[0016] The calculation corresponding to the maintenance drain flow rate is:

[0017]

[0018] Where Q 冲 is the pipe flushing water volume, D is the pipe diameter, v is the average pipe flushing rate, and T is the pipe flushing time;

[0019] The calculation corresponding to the drainage flow rate of the water supply pipe burst is:

[0020]

[0021] Where Q L is the burst pipe leakage, A L is the leakage area at the explosion point, H L is the pressure at the leak, g is the acceleration due to gravity;

[0022] S2. Multiplying the total designed drainage volume calculated in step S1 by a redundancy coefficient to obtain a water pump drainage demand. The redundancy coefficient is greater than 1 and is used for safety considerations under maximum drainage conditions. The water pump drainage demand includes the maximum instantaneous drainage volume accumulated by one or more water pumps working simultaneously.

[0023] S3. Designing the control mode and location arrangement of the water pump under the condition of satisfying the maximum instantaneous discharge volume obtained in step S2, including controlling the operation of the water pump at different locations in the water collection well according to different water levels.

[0024] Furthermore, in the calculation of step S1, the area of ​​the tunnel opening is the sum of the areas of the pipelines exposed to the outside, including the lifting openings, ventilation openings, and entrances and exits; the empirical coefficient A is obtained based on the statistical analysis of historical rainfall data in the area where the tunnel is located, and is used to reflect the baseline value of rainfall intensity under specific conditions; the leakage amount of the tunnel is calculated by the leakage area and the leakage rate per unit area.

[0025] The present invention also provides an underground integrated pipe gallery emergency drainage system, which uses the above method to calculate the total drainage volume of the pipe gallery. The system includes a water collection well and a drainage ditch located in the pipe gallery, and water in the drainage ditch flows into the water collection well;

[0026] A drainage pump is set in the water collection well. The drainage pump is located at different heights, and a water level monitoring sensor is set correspondingly to control the operation of the water pump at the water level;

[0027] The water collection well is arranged in sections, including the provision of emergency water pumps according to the actual drainage situation;

[0028] Corresponding alarm water levels are set for different water level points, and alarm devices are set corresponding to the alarm water levels.

[0029] Preferably, the water collection well of the integrated pipe gallery is provided with an ultra-low alarm water level at 1 / 6 of the volume;

[0030] A pump stop water level is set at 1 / 3 of the volume;

[0031] The first pump start water level is set at 1 / 2 volume;

[0032] A second pump start and alarm water level is set at 2 / 3 of the volume;

[0033] Water level monitoring sensors are installed at the above water level lines.

[0034] Based on the above-mentioned underground integrated pipe gallery emergency drainage system, the present invention also establishes a remote control system, including a control unit, a transmission module, a monitoring module, a data storage module and a water pump controller; the control unit collects data from water level monitoring sensors at various locations through the transmission module, including obtaining the working status of the water pump and controlling the operation of the water pump by connecting to the water pump controller, and also receives data from the monitoring module;

[0035] The data of the monitoring module includes video image data in the pipe gallery, as well as monitoring of water inflow at the pipe gallery opening, leakage in the pipe gallery, drainage volume from flushing in the pipe gallery, drainage volume from pipeline maintenance, and drainage volume from pipe bursts in water supply pipeline accidents;

[0036] The data storage module is used to record and store the monitoring data and system status data of the system, including the working and drainage conditions of the water pump and the working time.

[0037] Furthermore, the system includes a remote control system, which controls the operation of the emergency water pump according to the acquired information, and allocates and dispatches emergency vehicles to perform emergency drainage of the water collection wells in the pipeline corridor according to the emergency warning information.

[0038] Beneficial Effects: This invention fully considers various drainage scenarios in the pipe corridor, deriving the total drainage volume through scientific calculation methods, and based on this, designs an efficient and reliable emergency drainage system. Based on the provided system and remote control system, the system can quickly respond to emergencies such as water pipe bursts, reducing the impact on the safe operation of the pipe corridor. Compared with traditional design solutions based on empirical experience and actual preliminary drainage estimates, this invention further improves the reliability and safety of urban infrastructure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the implementation effect of the present invention;

[0040] Among them: 1-drainage ditch, 2-collection well, 3-municipal drainage system, 4-second pump start and alarm water level, 5-first pump start water level, 6-pump stop water level, 7-ultra-low alarm water level. DETAILED DESCRIPTION

[0041] In order to better explain the content and effect of the present invention, the present invention is further described below in conjunction with the embodiments. Figure 1 :

[0042] A design method for emergency drainage in underground utility corridors first determines the types of drainage required based on the corridor's structural characteristics and operating environment. This includes inflow at corridor openings, leakage from structural joints, internal flushing drainage, maintenance drainage, and drainage in the event of a burst in a water supply pipeline. A mathematical model is then developed for each drainage scenario to calculate the total drainage volume required in each case.

[0043] Specifically, water inflow at the openings of the integrated pipe gallery includes hoisting openings, ventilation openings, and entrances and exits. Generally, entrances and exits and hoisting openings are covered after construction. Therefore, only the water inflow at the ventilation openings needs to be calculated. For exposed pipe gallery openings, this embodiment considers the water inflow based on rainfall intensity, which is calculated as follows:

[0044]

[0045] Where: A represents the empirical coefficient, which is derived from the statistical analysis of historical rainfall data in a certain area. It reflects the baseline value of rainstorm intensity under specific conditions (such as short return period and short rainfall duration). Taking a southern city as an example, the empirical coefficient is 2424.17, and for another southern city, the empirical coefficient is 1600.00. q represents rainfall intensity, in units of L / (s·hm 2 ); lgP is a logarithmic function with base 10, which is used to convert the recurrence period from a linear scale to a logarithmic scale to better reflect the nonlinear growth trend of rainstorm intensity with increasing recurrence period. P represents the design recurrence period, and the unit is year; t represents the rainfall duration, and the unit is min. The coefficient of 0.533 is obtained through statistical analysis and is used to adjust the degree of influence of the logarithmic function on the growth of rainstorm intensity. (t+11) is an adjustment for the change of rainstorm intensity with rainfall duration. Since the intensity of rainstorms tends to be greater when the rainfall duration is shorter, and the intensity of rainstorms tends to decrease when the rainfall duration is longer. The t+11 here ensures that the denominator will not be zero when t=0 (that is, theoretically there is no rainfall duration), and 11 is also an empirical value used to adjust the shape of the curve. The exponent of 0.668 is obtained through statistical analysis and is used to describe the attenuation rate of rainstorm intensity with changes in rainfall duration.

[0046] Furthermore, the specific calculation method for the leakage flow rate at the structural joints of the pipe gallery is as follows:

[0047] Q 漏 =B×q 漏

[0048] Where: Q 漏 Indicates the amount of water leakage, the unit is m 3 / s; B represents the calculated area of ​​the corridor, in m 2 ;q 漏 Indicates the average water seepage, the unit is L / (m 2 ·d), take 0.05L / (m 2 d). The significance of the above formula is to calculate the leakage volume of the pipeline corridor by the leakage area and the leakage rate per unit area. Specifically, it multiplies the leakage area by the leakage rate per unit area to obtain the total leakage volume of the entire leakage area.

[0049] Furthermore, the specific calculation method for flushing drainage flow in the pipe gallery is:

[0050] Refer to the road sprinkler water volume standard (2.0-3.0L / m2) to flush the pipe corridor. The water volume for a single flush is calculated as follows:

[0051]

[0052] Where: Q 冲 Indicates the amount of water used for a single flushing of the corridor, in m 3 / s;q 冲 Indicates the water volume for a single flush, take 2.0L / m 2 C represents the area of ​​the design interval of the pipe gallery, which is also the area of ​​flushing. 3600 is a conversion factor used to convert the flushing intensity from units per hour to units per second. Because the flushing intensity is usually given in units of per hour (such as m 3 / (m 2 ·h)), and what we need to calculate is the total amount of water required for a single flush, so we need to convert the time unit from hours to seconds (1 hour = 3600 seconds).

[0053] Furthermore, the specific method for draining the drainage flow during pipeline maintenance is as follows:

[0054] The water supply pipeline needs to be flushed and disinfected before operation or before the water supply is restored after a long-term water outage. The pipeline flushing water volume is calculated as follows:

[0055]

[0056] Where: Q 冲 Indicates the amount of water flushing the pipeline, the unit is m 3 / s; D represents the pipe diameter, in m; v represents the average pipe flushing rate, in m / s, which is taken as 1.0 m / s; T represents the pipe flushing time, in s. It is a constant term, which comes from the area formula of a circle A=πr 2 Since the pipe is cylindrical, its cross-sectional area (i.e. the area of ​​the circle) needs to be calculated using this formula.

[0057] Furthermore, the drainage flow rate calculation method for a water supply pipe burst is as follows: the amount of water discharged by a burst pipe is related to the leakage area, and the burst leakage is calculated as follows:

[0058]

[0059] Where: Q L Indicates the leakage of burst pipe, the unit is m 3 / s;A L Indicates the leakage area of ​​the explosion point, the unit is m 2 ;H L Indicates the pressure of the leak, the unit is m; g indicates the acceleration of gravity, the unit is m / s 2 The core of the above formula is Part, it represents the speed of water flowing through the rupture (or jet velocity). This speed is derived from the Bernoulli equation (a simplified form under certain conditions), which takes into account the conversion between the gravitational potential energy and kinetic energy of the water flow.

[0060] When water flows from a high-pressure area (high head) to a low-pressure area (low head or rupture), its gravitational potential energy is converted into kinetic energy, causing the water flow rate to increase. L The product of the velocity of the jet gives the amount of water passing through the rupture per unit time, that is, the leakage Q L .

[0061] Finally, by adding up the flow rates calculated from the above five influencing factors, we can get the flow rate required for emergency drainage of the environmental integrated pipeline corridor. Considering the necessity and actual experience, it is necessary to multiply it by the redundancy coefficient of 1.2-1.5 to determine the optimal pump type to avoid energy waste caused by excessive drainage pump power, and to avoid too little power to meet emergency drainage needs.

[0062] In addition, combined with the drainage pump model and power obtained by this calculation method, this embodiment also provides a safe and reliable underground integrated pipeline corridor emergency drainage system, including a pipeline corridor structure, a drainage ditch 1, a collection well 2, a municipal drainage system 3, a second pump start and alarm water level 4, a first pump start water level 5, a pump stop water level 6 and an ultra-low alarm water level 7.

[0063] Specifically, the underground urban integrated pipeline corridor is equipped with a drainage ditch 1 to flow the collected water into a water collection well 2. The bottom of the water collection well 2 has an outlet connected to the municipal drainage system 3. Four water level lines are set on the inner side wall of the water collection well 2, namely, an ultra-low alarm water level 7 set when the water level reaches 1 / 6 of the actual volume of the water collection well 2, a pump stop water level 6 set when the water level reaches 1 / 3 of the actual volume of the water collection well 2, a first pump start water level 5 set when the water level reaches 1 / 2 of the actual volume of the water collection well 2, and a second pump start and alarm water level 4 set when the water level reaches 2 / 3 of the actual volume of the water collection well 2. Corresponding water level sensors are set at each of the above water levels, and the water level sensors at the first pump start water level 5 and the second pump start and alarm water level 4 are also used to control the start and stop of the water pump through the control center.

[0064] In combination with the above-mentioned emergency drainage system and remote control system, the present invention can implement the following applications and emergency management plans:

[0065] (1) Assuming that the maximum drainage demand of the daily drainage system of the pipeline corridor does not exceed 80m 3 / h, the water pump drainage power flow is 100m 3 / h (according to the redundancy factor of 1.2 times, it is 96m 3 / h, select the model that exceeds and is closest to the flow rate) to meet daily needs of one backup and one backup. In the event of a pipe burst, two pumps working in parallel can easily handle the emergency drainage needs of DN1600 pipe sections (leakage surface ratio approximately 1:500) and DN1200 pipe sections (leakage surface ratio approximately 1:300).

[0066] In actual operation:

[0067] ① Trigger an alarm when the water level is low and ensure that all water pumps are in the shutdown state;

[0068] ②When the water level reaches the pump stop level, both pumps stop automatically;

[0069] ③ As the water level rises to the first pump starting water level, the first pump starts working;

[0070] ④ If the water level continues to rise to the second pump starting water level, the second pump will start and the system will issue an ultra-high water level alarm signal.

[0071] The selection of drainage pipe diameter is also crucial during this process. To avoid the risk of bursting due to excessive flow, the maximum flow velocity within metal pipes should be controlled within 10 m / s. Therefore, balancing cost-effectiveness with operational safety, the pipe diameter must be carefully selected—neither too small to prevent excessive flow, nor too large to control costs. Therefore, the proper selection of pipe diameter is crucial for ensuring both the safety and economic efficiency of drainage systems.

[0072] (2) When the burst area increases (the ratio of the burst leakage surface to the pipe cross section is 1:100 to 1:10).

[0073] In this case, relying solely on routine drainage pumps is insufficient to promptly remove the burst water. Consider equipping the working section of the tunnel with a high-performance, high-flow emergency drainage pump. This pump can quickly intervene in the event of a moderate burst, effectively draining accumulated water and preventing critical infrastructure like communication cables from prolonged submersion, thereby avoiding potential operational obstacles and safety risks.

[0074] Given the ample space in the tunnel working section, an emergency drainage pump with high lift and large flow is installed in the tunnel working section on both sides of the explosion-prone point to fully meet the emergency drainage needs. For example, the tunnel working section at both ends of the explosion-prone pipe section is equipped with a pump with a design flow of 1000m 3 / h emergency water pump, this configuration is sufficient to handle the emergency drainage volume of the DN1600 pipe section with a leakage ratio of about 1:50, and can also meet the drainage volume of the DN1200 pipe section with a leakage ratio of about 1:30, ensuring drainage efficiency and coverage.

[0075] In specific drainage operations, in order to efficiently utilize existing resources, the existing drainage pipe system in the corridor can be used, and a three-way interface can be set on the drainage pipe at the working section of the corridor so that when the pipe bursts, the outlet of the emergency drainage pump can be quickly connected to the drainage pipe to achieve rapid drainage.

[0076] In addition, to ensure the flexibility and efficiency of emergency drainage, each emergency water pump is equipped with a suction hose approximately 1,000 meters long (diameter DN400) for flexible deployment at the pipe burst site, ensuring that the water pump can quickly and effectively absorb and discharge water from the accumulated water area, further enhancing emergency response capabilities.

[0077] (3) When the burst pipe area is large (the ratio of the burst pipe leakage surface to the pipe cross section is greater than 1:10).

[0078] In this situation, in addition to relying on fixed emergency drainage pumps, other auxiliary drainage measures should also be considered. A simple and feasible approach is to immediately dispatch a mobile drainage vehicle to the scene upon receiving an early warning of a pipe burst, utilizing its high efficiency to assist in ground drainage operations and quickly remove the accumulated water.

[0079] For example, when the mobile drainage vehicle is equipped with two units with a design flow rate of 10,000 m 3 / h drainage pump can cope with the emergency drainage volume of DN1600 pipe section with a leakage ratio of about 1:5, and can also cope with the emergency drainage volume of DN1200 pipe section with a leakage ratio of about 1:3.

[0080] Through this rapid response and highly efficient drainage measure, the time for draining accumulated water can be greatly shortened, the impact of pipe bursts can be reduced, and the safety of the pipeline corridor and its internal facilities can be ensured.

[0081] Aiming at the remote control of emergency treatment, the present invention establishes a remote control system, which includes a control unit, a transmission module, a monitoring module, a data storage module and a water pump controller.

[0082] First, data is collected from the water level monitoring sensors arranged in the corridor, and the data is transmitted to the control unit and the remote control terminal through the transmission module. The control unit collects data from the water level monitoring sensors at various positions through the transmission module, including obtaining the working status of the water pump and controlling the water pump by connecting to the water pump controller, and also receives data from the monitoring module; the monitoring module includes collecting video image data in the corridor through cameras, and also includes setting water level meters or flow meters to obtain water inflow at the corridor opening, leakage in the corridor, flushing drainage in the corridor, pipeline maintenance and drainage, and drainage in water supply pipeline accidents; through data collection and display, a comprehensive protection strategy can be provided for emergency personnel, such as starting the water pump for drainage in advance, arranging drainage vehicles to go to emergency pumping for emergencies, etc.

[0083] Pipe bursts in integrated pipe corridors are sudden, hazardous, and have widespread impact, yet current designs lack adequate consideration. This invention, by comprehensively analyzing drainage factors within the corridor and designing appropriate emergency drainage measures and pipe burst contingency plans, can effectively reduce the impact of sudden incidents like pipe bursts on the corridor and urban infrastructure, thereby improving the safety and reliability of corridor operations.

[0084] The proposed calculation method and system for an underground integrated pipe gallery emergency drainage system fully considers the various drainage conditions of the pipe gallery. Using a scientific calculation method, the total drainage volume is calculated, and based on this, an efficient and reliable emergency drainage system is designed. This system can rapidly respond to emergencies such as water supply pipe bursts, minimizing the impact on the safe operation of the pipe gallery and improving the reliability and safety of urban infrastructure.

[0085] Pipe bursts in integrated pipe corridors are sudden, hazardous, and have widespread impact, yet current corridor designs lack adequate consideration. This invention comprehensively analyzes drainage factors within the corridor and designs corresponding emergency drainage measures and a pipe burst contingency plan. This rapid and efficient drainage approach significantly shortens the time it takes to remove accumulated water, mitigates the impact of a pipe burst, and ensures the safety of the corridor and its internal facilities.

Claims

1. A design method for emergency drainage of an underground integrated pipe gallery, characterized in that: The steps include: S1. Determine the drainage type and calculate the total designed drainage volume, including the water inflow at the tunnel opening, the water leakage flow at the tunnel structure joints, the drainage flow for flushing inside the tunnel, the drainage flow for maintenance and venting, and the drainage flow for burst pipes in the water supply pipelines; The calculation corresponding to the water inlet flow at the pipe gallery opening is: Q 进 =S*q Where Q 进 is the water flow rate at the tunnel opening, S is the area of ​​the tunnel opening, A is the empirical coefficient, q is the rainfall intensity, P is the design return period in years, and t is the rainfall duration. The water flow rate at the tunnel opening is calculated based on the product of rainfall intensity and ventilation opening area. The calculation corresponding to the leakage flow rate at the pipe gallery structure seam is: Q 漏 =B*q 漏 Where Q 漏 is the leakage volume, B is the leakage area of ​​the pipe gallery, q 漏 is the average water infiltration rate; The calculation corresponding to the flushing drainage flow in the pipe gallery is: Where Q 冲 is the water volume of a single flushing of the pipe gallery, q 冲 is the single flushing water volume, C is the designed area of ​​the pipe gallery; The calculation corresponding to the maintenance drain flow rate is: Where Q 冲 is the pipe flushing water volume, D is the pipe diameter, v is the average pipe flushing rate, and T is the pipe flushing time; The calculation corresponding to the drainage flow rate of the water supply pipe burst is: Where Q L is the burst pipe leakage, A L is the leakage area at the explosion point, H L is the pressure at the leak, g is the acceleration due to gravity; S2. Multiplying the total designed drainage volume calculated in step S1 by a redundancy coefficient to obtain a water pump drainage demand. The redundancy coefficient is greater than or equal to 1 and is used for safety considerations under maximum drainage conditions. The water pump drainage demand includes the maximum instantaneous drainage volume accumulated by one or more water pumps working simultaneously. S3. Designing the control mode and location arrangement of the water pump under the condition of satisfying the maximum instantaneous discharge volume obtained in step S2, including controlling the operation of the water pump at different locations in the water collection well according to different water levels.

2. The underground integrated pipe gallery emergency drainage design method according to claim 1 is characterized in that: In the calculation of step S1, the area of ​​the tunnel opening is the sum of the areas of the pipelines exposed to the outside, including the lifting openings, ventilation openings, and entrances and exits; the empirical coefficient A is obtained based on the statistical analysis of historical rainfall data in the area where the tunnel is located, and is used to reflect the baseline value of rainfall intensity under specific conditions; the leakage amount of the tunnel is calculated by the leakage area and the leakage rate per unit area.

3. An underground integrated pipe gallery emergency drainage system, characterized in that: The system calculates the total drainage volume of the pipe gallery using the method according to claim 1. The system includes a water collection well and a drainage ditch located in the pipe gallery, and water in the drainage ditch flows into the water collection well; A drainage pump is set in the water collection well. The drainage pump is located at different heights, and a water level monitoring sensor is set correspondingly to control the operation of the water pump at the water level; The water collection well is arranged in sections, including the provision of emergency water pumps according to the actual drainage situation; Corresponding alarm water levels are set for different water level points, and alarm devices are set corresponding to the alarm water levels.

4. The underground integrated pipe gallery emergency drainage system according to claim 3, characterized in that: The water collection well of the integrated pipe gallery is provided with an ultra-low alarm water level at 1 / 6 of the volume; A pump stop water level is set at 1 / 3 of the volume; The first pump start water level is set at 1 / 2 volume; A second pump start and alarm water level is set at 2 / 3 of the volume; Water level monitoring sensors are installed at the above water level lines.

5. The underground integrated pipe gallery emergency drainage system according to claim 3, characterized in that: The system includes a remote control system, including a control unit, a transmission module, a monitoring module, a data storage module and a water pump controller; the control unit collects data from water level monitoring sensors at various locations through the transmission module, including obtaining the working status of the water pump and controlling the water pump operation by connecting to the water pump controller, and also receives data from the monitoring module; The data of the monitoring module includes video image data in the pipe gallery, as well as monitoring of water inflow at the pipe gallery opening, leakage in the pipe gallery, drainage volume from flushing in the pipe gallery, drainage volume from pipeline maintenance, and drainage volume from pipe bursts in water supply pipeline accidents; The data storage module is used to record and store the monitoring data and system status data of the system, including the working and drainage conditions of the water pump and the working time.

6. The underground integrated pipe gallery emergency drainage system according to claim 5, characterized in that: The system includes a remote control system, which controls the operation of the emergency water pump according to the acquired information, and allocates and dispatches emergency vehicles to perform emergency drainage of the water collection well in the pipeline corridor according to the emergency warning information.

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