244 results about "Drainage network" patented technology

The invention discloses an urban drainage network online detection method. The method includes the steps that S1, an on-site monitoring system of a drainage network is built, and pipeline liquid level parameters and pipeline displacement parameters of all monitoring points in the operation process of the drainage network are collected and stored in a pre-warning database; S2, according to the pipeline position, the elevation, the pipeline diameter, the gradient and pipeline roughness coefficient parameters of each monitoring point, a static database of the drainage network is built, and the static database is associated with the pre-warning database; S3, a state analysis system of the drainage network is built to obtain the operation state of the drainage network; and S4, a pre-warning system of the drainage network is built, pipeline disease problems in the operation process of the drainage network are judged in real time according to the state of the drainage network and pipeline displacement state analysis results, and real-time pre-warning is achieved. A whole set of monitoring method is disclosed for stable and safe operation of an urban drainage network to achieve informatization management of the urban drainage network, and bases are provided for urban drainage network planning and construction.

The invention discloses a big cross slope and small downward slope type slope terraced field structure and a construction method thereof. The structure is as follows: the upper border and the lower border of a sloping surface plot are provided with plant protective ridge terraces, the upper side and the lower side of each terrace are respectively provided with a side ditch and a back ditch, and other periphery of the sloping surface plot is provided with drainage ditches connecting with the upper border terrace back ditches and the lower border terrace side ditches along the slope surface to form a drainage network drain; the sloping surface plot in the drainage network drain is divided into multiple downward slope ridging zones by cross slop damming ditches; a plurality of small ridging downward slopes are evenly distributed in the downward slope ridging zones; a ditch is arranged between adjacent small downward slopes; and all the ditches in the downward slope ridging zones are communicated with the damming ditches and side ditches of the cross slope. The invention has the characteristics of retaining water, reducing erosion, saving labor force and being convenient for operation.

The present invention discloses a system and method of drainage network monitoring based on a narrow band Internet. The system comprises an online monitoring device, a network communication system and a remote monitoring platform. The network communication system is in communication connection with the remote monitoring platform, the network communication system is a narrow band internet-of-things network communication system, the online monitoring device comprises a control module, a data collection module and a communication module, the control module is connected with the data collection module and the communication module, the communication module is a narrow band internet-of-things communication module, the communication module is configured to establish communication connection with the network communication system, and the control module is configured to obtain data of the data collection module and send the data to the remote monitoring platform through the communication module and the network communication system. The system and method of drainage network monitoring based on the narrow band Internet employ the narrow band internet-of-things module to replace a traditional wireless communication module for data transmission so as to have higher wall penetrating capability and very low power consumption, prolong the service life of the battery of the device and facilitate device communication.

The invention relates to a distributed complex giant system based on digital drainage network operation management and maintenance, and the system realizes precise and scientific management. The system comprises software and hardware support. From the viewpoint of the system structure, the system is divided into three parts, namely a data layer, a GIS service layer, and an application layer. From the viewpoint of the logical relationship, the system is divided into a system operation environment layer, a data acquisition layer, a data support layer, an application service layer, a system base layer, an application layer and a man-machine interaction layer. The system provided by the invention employs advanced technologies and management methods to optimize and improve relevant links and details, couples advanced drainage network simulation models with various data analysis methods, makes full use of strong data sources, provides comprehensive and professional analysis means, ensures that various application systems of the drainage network digital management collaboratively operate based on unified basic data, provides strong technical support for management and decision-making, and meets the need of the scientific operation and management of a majority of drainage networks.

The invention discloses a big data-based urban drainage network monitoring control system. The big data-based urban drainage network monitoring control system comprises a man-machine interaction module, an alarming module, an external source weather module, a data storage module, a pipe and pump station information base, an analyzing module, a flow sensor, a pump station, a pump station monitoringmodule, a pump station water level monitoring module, an inspection well water level monitoring module and a valve front end. The big data-based urban drainage network monitoring control system can analyze and compute water drainage in an urban drainage network through the analyzing module to adjust the drainage velocity of the pump station in work and reduce the start-stop frequency of the pumpstation, and meanwhile, timely empty a water collecting well through the connected external source weather module to improve the water storage capacity of the drainage network in rain and reduce the possibility of urban flooding; besides, by analyzing the water flow in drainage pipes through the analyzing module, the big data-based urban drainage network monitoring control system can help timely discover damaged or blocked section and implement dredging, maintenance and replacement operation to ensure normal operation of an urban drainage system.

The invention discloses an automatic recognition method at a drainage network monitoring point. The method comprises the following steps: collecting information to establish a drainage network model at a target region, setting various scenario simulations to obtain status curves corresponding to all node monitoring indexes under each scenario, and initially grouping the nodes, computing the relevance among the node status curves, performing weighted average to obtain a relevant matrix, and clustering according to the relevancy size; selecting the point with the maximum average relevancy with other points in the same type of nodes as a representative monitoring point; checking and adjusting the representative monitoring point to determine a final monitoring scheme and to provide a quantified evaluation index about the good and bad of a monitoring scheme. The method disclosed by the invention has the following advantages that the limitation to the network operation law recognition is lowered when artificially making the scheme, the subjectivity of artificially setting the monitoring point is avoided, the artificial workload is reduced, the monitoring point representativeness is guaranteed, a quantified evaluation result of the monitoring scheme is provided, so that the operation status of the drainage network can be comprehensively reflected through less node monitoring.

The invention discloses a treatment vehicle and a treating method for sucking sludge in a city pipe network. The treatment vehicle comprises a vehicle; a sludge tank is arranged on the vehicle; a lower-layer sieve and an upper-layer sieve are arranged above the sludge tank in sequence; sieve materials on the lower-layer sieve and the upper-layer sieve are connected with a slag hopper; a sludge suction pump used for sucking sludge from a sludge deposit well is arranged on the vehicle, and is connected with the lower-layer sieve; one side of the sludge tank is communicated with a whirlcone through a slurry pump; the bottom flow of the whirlcone is connected with the upper-layer sieve; and the overflow of the whirlcone is communicated with a cellar well or the sludge tank through a pipeline. After the structure and the steps are adopted, the treatment vehicle and the treating method, disclosed by the invention, can effectively clear out and dehydrate sludge deposited in the city drainage network deposit well, slag charges treated are stored in the slag hopper, and sewage is drained to the network. An engine of the vehicle generates power to drive electric equipment on the treatment vehicle, without an additional power supply.

The invention provides an automatic hydraulic model establishment method based on CAD drainage network drawing information, and belongs to the crossing field of the municipal engineering information technology and the geographic information system technology. The method starts from the hydraulic model establishment and is based on the storage situation of the CAD drainage network drawing information, complex layering does not need to be conducted on CAD engineering drawings, the manual one-by-one attribute data recording work is greatly simplified, the CAD profile diagram attribute data are converted to a GIS database in batches through TrueTable software, data can be automatically recorded in batches, the complex operation of the manual one-by-one data recording is greatly reduced, the data recording work efficiency is improved, the quality of the model data is ensured, and the quality of an established hydraulic model is improved.

The invention relates to a drainage network pollutant emission tracing method and device. The device comprises water quality monitoring modules, power supply devices, signal transmitting systems, a cloud service platform, and a mobile terminal; a plurality of water quality monitoring modules are respectively arranged at all monitoring points of the drainage network, a plurality of power supply devices are arranged, respectively connected with the corresponding water quality monitoring modules and used for supplying power for the corresponding water quality monitoring modules; a plurality of signal transmitting systems are arranged, connected with the corresponding water quality monitoring modules and used for sending data collected by the water quality monitoring modules to the outside; the cloud service platform is connected with the signal transmitting systems and is used for receiving the data collected by the water quality monitoring modules and processing the data to obtain an early warning value, performing tracing in combination with the position information of the water quality monitoring modules when the early warning value is exceeded, and giving an alarm in time; and themobile terminal is connected with the cloud service platform and used for receiving alarm information and water quality information. Compared with the prior art, the method and the device have the advantages that multi-node and multi-parameter real-time monitoring can be realized and the early warning can be carried out, so that pollutant emission of the industrial pollution source drainage network can be conveniently traced.

The invention belongs to the technical field of pipeline robots, and particularly relates to a pipeline robot for an urban drainage network pipe. The pipeline robot for the urban drainage network pipe comprises driving modules, a cover plate, a holder, a lifting platform, beams and wheels. Through the pipeline robot, the technical problem that it is difficult to manually detect and maintain the interior of an existing urban drainage pipeline is solved. The pipeline robot is simple in structure, high in adaptability, strong in power, high in reliability, stable in operation and comprehensive in detection, modular design is achieved, the functions can be expanded, and detection and maintenance of the interior of the urban drainage pipeline can be achieved.

The invention relates to an urban waterlogging monitoring and pre-warning system and pre-warning method. The urban waterlogging monitoring and pre-warning system comprises a processing unit, a surfacerunoff water depth monitoring unit, an underground drainage network monitoring unit, a meteorological information monitoring unit, a rainfall monitoring unit, a communication unit and a drainage unit, wherein the surface runoff water depth monitoring unit is electrically connected with the processing unit; and the processing unit is suitable for judging the urban waterlogging condition accordingto the actual surface runoff flow of various monitoring points, an excess surface water depth, an underground drainage network drainage state, weather information and rainfall, and uploading the urbanwaterlogging condition to a server through the communication unit in real time, and controlling the drainage unit to drain water when the processing unit judges urban waterlogging. According to the urban waterlogging monitoring and pre-warning system and the pre-warning method, analysis and statistics are carried out by comprehensively transmitting and processing monitoring data and combining bigdata with deep learning artificial intelligence, early prewarning information is issued, processing planning measures are generated in advance and intelligent control is implemented on electrical equipment at various sites.

The present invention discloses a safety operation control method of urban drainage networks. At present, urban drainage network system in our country is difficult to directly measure state information in a pipeline such as water flow, water level, water pressure, flow velocity and the like, a long delay from control input to water flow state changing is required so as to bring great difficulty for safety operation control of preventing a drainage pipeline from overflow, and therefore, an efficient and timely safety operation control method is lacked at present. A delay compensation proportional integral observer is employed to perform estimation and reconstruction of the water flow state of the drainage pipeline, a feedback control design based on the observer is performed, and methods such as the separation principle and the Lambert W function are employed to respectively perform gain solution of the observer and a controller. The safety operation control method of the urban drainage networks solves the difficulty of safety operation control for preventing urban drainage pipeline from overflowing, satisfies the accuracy and timeliness requirement of actual safety operation control and facilitates safe and reliable operation of a modern urban drainage network system.

The invention provides a greenbelt structure integrating rainwater storage and utilization in the technical field of sponge city building.The greenbelt structure comprises a vegetation layer, a planting soil layer and a water storage layer which are sequentially arranged from top to bottom.A separating layer is arranged between the planting soil layer and the water storage layer.A rainwater permeating and drainage facility is arranged in the greenbelt structure and comprises a gravel buffering area and a water drainage pipe, wherein the gravel buffering area penetrates through the greenbelt structure from top to bottom, and the water drainage pipe is arranged in the gravel buffering area.An overflowing area is arranged on the upper portion of the water drainage pipe and sleeved with a protecting hood.Rainwater can be directly absorbed and stored in the water storage layer of the lower layer of the greenbelt structure, the rainwater runoff volume generated by rainfall of rainstorms and above can be reduced, pressure of a municipal drainage network is effectively relieved, the stored rainwater can be directly utilized for growth of green plants, and the irrigation needs of the green plants are effectively reduced.

The invention provides a pitting field and hedgerow combined farming mode and a structure thereof. According to the invention, the upper and lower edges of a slope-surface land parcel are provided with permanent slope-protecting ridges; gutters are dug at the outer sides of the ridges and at the left and right sides of the slope-surface land parcel; the gutters are interconnected to form a slope-surface gutterway; horizontal interception ditches with equal altitude are dug in the interior of the slope-surface land parcel from top to bottom according to critical slope length which leads to rill erosion, so the slope-surface land parcel is divided into a plurality of farming districts with equal length; ridges and furrows are constructed along slope direction in the farming districts; the downslope furrows, the interception ditches with equal altitude and the slope-surface gutters are communicated to form a slope-surface water drainage network; downslope furrow pitting field earth ridges and equal-attitude interception ditch pitting field earth ridges are constructed in the downslope furrows and the interception ditches at same intervals, thereby forming downslope furrow pitting fields; and cross slope ridges with equal altitude are constructed at the middle parts of the farming districts, and water-retaining plants are planted on the ridges to form ridge hedgerow. The combined farming mode provided by the invention has the advantages of simple operation, low cost and substantial control effect on water and soil loss.

The invention discloses a downhole stereo rapid water drainage method through the combination of horizontal drilling holes and vertical drilling holes. A plurality of main horizontal drilling holes are transversely arranged in an aquifer, a plurality of branch horizontal drilling holes extend out from the tail ends of the main horizontal drilling holes, the main horizontal drilling holes and the branch horizontal drilling holes avoid a poor-water area and pass through a rich-water area, a plurality of vertical drilling holes are arranged upwardly from the top plate of a tunnel and vertically reach to the place where the horizontal drilling holes cannot reach and the rich-water area with large expected water inflow, a stereo drainage network is formed through the combination of the plurality of horizontal drilling holes and vertical drilling holes, and water in a stope caving zone, a water guide crack zone, and a bottom board damage influence zone in the stoping influence range of a top bottom board can be clearly drained to a large extent. According to the method, the horizontal drilling holes and the vertical drilling holes are reasonable and scientific in design, the water pressure is effectively reduced, the drainage effect is improved, the construction period is greatly shortened, and the exploitation safety of the ore bed threatened by flood damage.

The invention provides a simulation modeling and scheduling method for an urban drainage system. The method comprises the following steps: establishing a drainage network static database based on a geographic information system; carrying out grid region division and constructing an urban drainage system model; introducing an Adam algorithm into the urban drainage system model, repeatedly and iteratively optimizing the calculated value and the monitored value of the urban drainage system model, and correcting the error of the urban drainage system model; obtaining an urban ponding area distribution map and a ponding liquid level condition; constructing a robust optimization scheduling model which takes the minimum sum of the current economic scheduling cost and the adjustment cost under real-time operation as a target; and using a robust optimization scheduling model to obtain a value in the uncertain set to obtain a determined feasible solution, and combining the pump station scheduling index to obtain a final pump station scheduling plan. Precise scheduling of the pump station can be achieved, the error between the theoretical value and the actual measured value of the urban drainage model is corrected, and energy consumption is reduced.

The invention provides a drainage network encoding method and system. The method comprises the steps of receiving a drainage network encoding request, obtaining drainage network information according to the drainage network encoding request, obtaining a drainage network information encoding mode corresponding to the drainage network information, encoding the drainage network information according to the drainage network information encoding mode corresponding to the drainage network information, recording drainage network information codes according to a certain sequence to obtain a complete code which is the drainage network code, and searching for the drainage network information and / or obtaining drainage network spatial topological attributes and / or inquiring drainage network auxiliary information according to the drainage network code. The drainage network encoding method and system can solve the problem that drainage network codes are not uniform within the global range, and promote sharing of global drainage network information and development of the global water management informationization process.

The invention relates to the field of building foundations, in particular to a method for dredging a soft foundation by dredger fill and reinforcement. The method includes: a, zoning for dredger fill; b, forming a primary drainage system; and c, performing layered and zonal filling and reinforcement. The method is characterized in that in zoning for dredger fill, each filling unit (11) is 20000m<2>-50000m<2> in area; in formation of the primary drainage system, digging crisscross blind ditches (31) on the surface of the filling unit (11), and laying corrugated filter pipes (32) and drain boards (33) on the surface for the filling unit (11); and in layered zonal filling and reinforcement, filling the filling area (1) level by level, and reinforcing with all levels of drainage networks. The method is convenient in construction, short in construction period, effective in foundation treatment and low in construction cost.

The invention discloses a face pollution control method for a combined system drainage pipe network system. An urban region is divided into a plurality of unit regions including sewage pipelines and rainwater pipelines through function purpose attributes. The rainwater pipeline and the sewage pipeline inside each unit region are communicated. A first rainwater treatment system arranged on the sewage pipeline inside each unit region separates sewage inside the sewage pipe and mixed sewage formed by preliminary rainwater into a sewage branch pipe or a rainwater branch pipe to treat the mixed sewage inside the unit region, the mixed sewage is guided into the sewage branch pipe or the rainwater branch pipe; a second rainwater treatment system arranged on the rainwater branch pipe achieves treatment of mixed sewage inside the rainwater branch pipe, and the mixed sewage is guided into the sewage branch pipe or natural water is directly drained. The face pollution control method is simple in structure and convenient to build, and efficient treatment of sewage and preliminary rainwater inside the regions divided through administrative functions inside a city can be achieved just by building a preliminary rainwater storage pond inside the limited region of the municipal road.

The invention discloses a stray current simulation modeling method based on multi-train operation conditions, and relates to the field of stray current simulation modeling. According to the method, the stray current distribution characteristic is used; a 'steel rail-drainage network-buried metal-ground 'four-layer earth screen structure model conforming to actual subway line characteristics is utilized; a train and a traction substation are regarded as direct-current sources to inject current to the ground together; based on this, a distribution model of the electrical quantity of the earth screen under the action of a single injection source is deduced by using a micro-element method, and then the action results of the injection sources are superposed to obtain the distribution conditionof the electrical quantity on the whole line, so that the whole line stray current and the steel rail potential value obtained by simulation more accord with actual values. The method solves the problems that a traditional stray current distribution model is only driven by a single train and only supplies power to one or two substations, the model structure is simple, boundary conditions are greatly different from actual conditions, and large errors exist between simulation results and measured values.

The invention discloses a drainage network patrol system and method based on AR live action and audio navigation and aims at providing an intelligent drainage network patrol system and method convenient for a user to operate and solves the problem of time consuming of pipe network patrol. The drainage network patrol system is characterized by providing paths and images through an AR live action navigation technology, achieving speech control through a speech recognition technology, freeing one hand to process other things, registering, uploading and correcting patrol results and improving drainage network patrol efficiency.

The present invention discloses a caterpillar band pumping type dredging robot used for drainage network and river open channel dredging. The caterpillar band pumping type dredging robot can continuously and reliably transmit silt efficiently and remotely and greatly improve dredging efficiency. The robot of the invention comprises a bucket assembly, an arm hoisting mechanism, a pumping mechanism, a video assembly, a control chamber assembly, a chassis assembly, a chassis lifting mechanism, a caterpillar band assembly and a ground control system. According to the caterpillar band pumping type dredging robot of the invention, the pumping mechanism is applied to the dredging robot for drainage networks and river open channels, and therefore, the caterpillar band pumping type dredging robot is simple and reliable in structure; and the special chassis lifting mechanism is adopted, if water level is too high, the pumping mechanism can be lifted through the hoisting of a chassis 14, so that the pumping of excessively diluted silt brought about by the entering of water into the hopper 9 of the pumping mechanism can be prevented, and therefore, the application space of the robot can be further extended.

The invention discloses an urban drainage pipe network operation and maintenance method based on a pipe network construction model and the Internet of Things. The method comprises the following stepsof: collecting urban drainage pipe network information; establishing the BIM model of the urban drainage network based on a BIM technology; establishing a B / S, M / S pipe network operation and maintenance platform based on a GIS technology; arranging the internet-of-Things intelligent sensing equipment at the front end of the pipe network through calculation of a pipeline hydraulic model so as to sense pipe network operation information; carrying out lightweight processing on the BIM model, uploading the BIM model to the B / S, M / S pipe network operation and maintenance platform, and superposing the BIM model into a GIS map; enabling the data obtained by the Internet-of-Things intelligent sensing equipment to be in one-to-one correspondence with the BIM model and the GIS map, and achieving thesharing and transmission of the data; performing drainage service workflow on a pipe network operation and maintenance platform, and performing pipe network operation and maintenance condition earlywarning and quality evaluation through Internet of Things monitoring and model calculation. The urban drainage pipe network operation and maintenance method based on the pipe network construction model and the Internet of Things is reasonable in arrangement, and refinement and scientization of drainage pipe network operation management and maintenance are achieved.

The invention provides an intelligent drainage network system for road safety. The system comprises an information collection system, a control system, a communication system, a data storage system, an execution system and a remote platform system. The intelligent drainage network is an intelligent information system. Combustible gas real-time monitoring of drainage pipelines on two sides of a road, drainage pipeline manhole cover breakage and loss alarm, pipeline clogging alarm, pipeline water quality monitoring, pipeline peripheral soil monitoring and real-time remote alarm can be realized by adopting the intelligent drainage network system and method for road safety, so that the intelligent level of the drainage network can be improved.

The invention relates to an anti-blocking controllable negative pressure quick solidifying method for flow state dredging silt, which belongs to the technical field of water conservancy and navigation projects. The method comprises the following steps: manufacturing an anti-blocking drain board, preparing an anti-block controllable negative pressure device, inserting the anti-blocking drain board, connecting drainage networks, covering for sealing, and draining water with vacuum and negative pressure. As the technical scheme reasonably ensures the specification and the structure of a filter membrane, and allows a drainage system to be stabilized in optimal vacuum and negative pressure for working with the aid of the anti-block controllable negative pressure device, so as to have the anti-blocking effect, and then guarantee a flow state dredging silt foundation to drain water and reinforce quickly.

The invention provides a mesh splicing method for watershed large-scale complex drainage networks, and aims at realizing automatic mesh splicing of large-scale watershed complex drainage network areas, decreasing mesh generation difficulty of areas with complex terrains and satisfying nesh construction requirements of the large-scale watershed complex drainage network areas. The method is characterized by comprising the following steps of: 1, recognizing a watershed drainage network water system water system and extracting a watershed water system boundary; 2, separately drawing a trunk streamand branch streams, segmenting a same reach at a position where the watercourse is relatively smooth, independently partitioning the watercourse at intersections of the trunk stream and the branch streams, and keeping superposed areas between every two adjacent watercourses; 3, setting a number and a size of each watercourse mesh according to water system features in watersheds, and respectivelydrawing each watercourse mesh of the trunk stream and the branch streams; 4, dividing T-shaped meshes at intersection areas of the trunk stream and the branch streams into 4 sections to ensure that the mesh number at the intersections is as few as possible; and 6, replacing the original T-shaped meshes by the divided meshes so as to carry out overall mesh splicing.

The present invention discloses a semi-permeable drainage pipe and a related drainage pipe network, and relates to a drainage pipe and a related drainage pipe network. A semi-permeable drainage pipe (10) is composed of an upper semi-pipe for permeability (11) and a lower semi-pipe for non-permeability (12). A structure of the drainage network based on the semi-permeable drainage pipe is described as follows: a drill hole (40) is arranged at a drainage zone (30), the semi-permeable drainage pipe (10) is arranged on the internal wall of the drill hole (40), and a water stop material (20) is arranged between the lower positions of the semi-permeable drainage pipe (10) and the drill hole (40). The present invention only drains water from the drainage zone (30) in a single direction, but does not transfer at other places except for the draining zone (30); reduces the location of the saturated surface of underground water; is applied to the civil engineering, the water conversancy, the transportation, the bridge, the mine, the municipal engineering, the agriculture, the horticulture and other drainage and precipitation fields.

A rotor-type water meter, including a watch case and a rotor-type metering mechanism at the lower part of the watch case and a corresponding upper indicating mechanism. The impeller box in the metering mechanism is in the shape of a round basin, and the bottom is equipped with an adjustment plate, and the impeller is set on a fixed top. On the top, the water filter net is assembled outside the impeller box; there is a downwardly concave water filter cylinder at the bottom of the water filter net, and there is a guide shaft at the bottom of the water filter net on the outer ring of the water filter cylinder, and the water sealing valve that can move up and down passes through The hole is set on the guide shaft, and there is a square bar on the inner wall of the water filter that closely matches the impeller box. There is a water hole in the square bar, and a jet hole is opened at the position connected to the water hole on the impeller box. , the advantages of this water meter are: a water sealing valve is added on the basis of the original ordinary water meter, and the water filter uses a filter cylinder to enter water, which greatly increases the water passing through the water filter, thus reducing the high sensitivity of the rotor type. Water meter pressure loss.

The inventions comprises a computer implemented method for generating control signals adapted to be sent to actuators, such as gates and pumps, in a water drainage network DN in an area, said method comprising—receiving DN data comprising one or more of DN topology of the area, rain intensity measures, water level measures, from the sensors or from an external source,—generating or receiving objective functions to optimize,—receiving a selection of a multi-objective optimization method, this multi-objective optimization preferably comprising lexicographic method or weighted sum method,—generating an optimization problem,—solving the optimization problem thereby generating the strategies to be sent to actuators in the water drainage network DN.

The invention discloses a calculation method for optimizing a municipal drainage network plane layout design. The calculation method is characterized by mainly comprising three steps that firstly, a construction cost fitness function which has high matching degree with drainage network assessment is constructed; secondly, an initialized population is obtained from a tree structure genetic algorithm initializing scheme based on the divide-and-conquer method; thirdly, an expanded variable population is obtained by utilizing a line-adding and circle-breaking method. The calculation method for optimizing the municipal drainage network plane layout design has the advantages that the matching degree between the constructed construction cost fitness function and the drainage network assessment is high, so a drainage network can be well planned; the tree structure genetic algorithm initializing scheme based on the divide-and-conquer method enables an initialized scheme of a tree structure to be completed rapidly, and large-scale initialization of the large-scale pipe network can be achieved; a variation algorithm of the drainage network is simpler by utilizing the line-adding and circle-breaking method, a novel pipe network planning map can be generated after each line is cut out in a circle with added lines, and variation diversity is guaranteed.