359 results about "Utility tunnel" patented technology

The present application provides a digital twin utility tunnel system based on a reduced-order simulation model and a real-time calibration algorithm. The system includes a big data aggregation unit and a real-time simulation deduction unit. The big data aggregation unit is configured to collect static attribute data and real-time dynamic data. The real-time dynamic data includes fixed monitoring data and mobile monitoring data. The fixed monitoring data is collected by gas sensors fixedly installed in the utility tunnel, and the mobile monitoring data is collected by mobile sensors in the utility tunnel. The real-time simulation deduction unit includes a forward prediction module and an inversion calibration module. The forward prediction module is configured to perform dimension reduction simplification and rapid prediction, and the inversion calibration module is configured to perform real-time calibration on a predicted physical field, correct the predicted physical field, and perform inversion on hazard sources.

The invention provides a comprehensive pipe gallery abnormal state early warning method and system based on the Internet of Things, and the method comprises the steps: collecting multi-source monitoring data including environment state parameters, equipment operation parameters and structure deformation parameters in real time through multiple types of sensor nodes disposed in a comprehensive pipe gallery; the multi-source monitoring data is preprocessed to generate a preprocessed monitoring data set, feature fusion processing is carried out on the preprocessed monitoring data set to generate a fusion feature vector set containing time and space related features, and then an abnormal state analysis model is called according to the fusion feature vector set to calculate and obtain real-time state evaluation parameters of the comprehensive pipe gallery. And finally, the real-time state evaluation parameters are compared with a preset early warning threshold interval, an early warning strategy is generated and fed back to a monitoring system to trigger early warning response operation, and timely early warning of the abnormal state of the comprehensive pipe gallery is achieved.

The invention discloses a pipe gallery risk identification and positioning method and system under multi-protocol driving, and relates to the technical field of pipe gallery risk management, and the method comprises the steps: obtaining a pipe gallery structure diagram, carrying out the deployment of a multi-source sensor, and constructing a sensor topology network; the pipe gallery is continuously monitored; characterization risk identification is carried out, characterization risk nodes and characterization risk feature vectors are determined, association link retrieval is carried out, and a target association link set is determined; extracting backtracking data, and determining a backtracking data sequence set; and carrying out serialized risk trend identification, determining an implicit risk node set, and taking the characterization risk node and the implicit risk node set as a risk identification positioning result. The technical problem of low risk monitoring efficiency caused by single sensor deployment and difficulty in accurate positioning of hidden risk nodes in pipe gallery risk monitoring in the prior art is solved, and the technical effects of realizing efficient identification and positioning of pipe gallery risks and effectively improving the pipe gallery risk monitoring and management and control capability are achieved.

Provided are a system and a method for detecting fire event in underground utility tunnels based on acoustics. The system is for early detection of fire situations in an underground facility based on sound. The system includes a sound acquisition device that is installed in the underground facility and collects acoustic signals in real time, and a fire situation early detection server that predicts occurrence of electric sparks and infers a fire risk based on the acoustic signal collected by the sound acquisition device.

The invention relates to the technical field of signal data processing, in particular to an intelligent detection method and system for deformation of a deep foundation pit of a pipe gallery, and the method comprises the steps: collecting a vibration signal and an IMF component signal in each short-time window; acquiring a vibration propagation sequence and a first-stage signal corresponding to each IMF; according to the similarity between the IMF component signals and the corresponding vibration signals, a first-stage correction coefficient is obtained by combining the similarity between the first-stage signals corresponding to the adjacent IMFs; obtaining a second-stage signal and a second-stage correction coefficient corresponding to each IMF according to the vibration propagation sequence and the IMF component signal; signals in the vibration propagation sequence are corrected, and a vibration source signal segment corresponding to each monitoring point is obtained according to a correction result and the similar situation of each vibration signal between IMF component signals in each short-time window; and obtaining a deformation monitoring result of the pipe gallery deep foundation pit. According to the invention, accurate separation and positioning of the independent vibration source are realized.

The invention relates to the technical field of tunnel engineering prefabricated part production, in particular to a large-diameter duct piece independent kiln assembly line conveying prefabricating method and system. S2, a reinforcement cage and an embedded part are installed; s3, concrete is precisely poured and vibrated; s4, pre-curing and surface treatment; s5, carrying out roller way type flow conveying; s6, hydration heat-driven dynamic maintenance is carried out; and S7, demolding and finished product detection. And S8, mold circulation. According to the large-diameter duct piece prefabricating production line, through technical innovation in multiple aspects of mold, conveying, maintenance, control and the like, the core technical problem in existing large-diameter duct piece prefabricating production is solved, high-precision, high-efficiency, low-energy-consumption and green production of large-diameter duct pieces is achieved, and the large-diameter duct piece prefabricating production line has remarkable technical advantages and wide application prospects and is suitable for large-diameter duct piece prefabricating production. The method can be widely applied to infrastructure construction projects such as shield tunnels, open caisson projects and underground comprehensive pipe galleries.

The invention discloses a settlement monitoring device applied to a utility tunnel, and belongs to the technical field of settlement detection, the settlement monitoring device comprises a reinforcing block and an air bag, the side wall of the reinforcing block is provided with a plurality of groups of anchor rods, and the reinforcing block is internally provided with a detection mechanism and a bearing mechanism; the detection mechanism comprises a first hydraulic cavity and a detection cavity which are formed in the reinforcing block. Through the diameter difference design of the first hydraulic cavity and the detection cavity, the settlement displacement can be amplified and detected during pipe gallery settlement, and during settlement, a diluted hydrochloric acid solution in the liquid storage pipe is pressurized and pushed into the reaction cylinder through the piston rod to react to generate carbon dioxide gas, so that the pressure in the gas cavity is increased; the bearing sleeve is pushed to move upwards to make the bearing block make contact with the pipe gallery, the gas reaction generation amount in the reaction cylinder can be controlled according to the settlement amount of the pipe gallery, the counter-acting force on the pipe gallery is controlled, differential compensation is conducted on the settlement difference, and it is ensured that the overall structure of the pipe gallery is evenly stressed.

The invention relates to the field of information processing, and discloses an underground pipe gallery intelligent inspection robot path planning method, which comprises the steps of judging an environment change risk based on underground pipe gallery structural characteristics, and dynamically adjusting a detection period; triggering local path reconstruction in combination with sensor data change and target conflict conditions; and orderly collaboration of path safety, energy consumption and smoothness is realized through a layered optimization architecture. According to the method, triggering logic is used for replacing a traditional periodic planning mechanism, risks and conflict points in operation can be recognized more accurately, and active adaptation and quick response of path decision are achieved. Through a multi-dimensional decoupling architecture, mutual interference of targets is avoided, and the system stability and execution efficiency of path planning are improved.

The invention discloses a tunnel and station integrated structure suitable for a soft soil stratum, which belongs to the technical field of underground stations and comprises a tunnel and a plurality of access passages. Layered floors extending in the longitudinal direction are arranged in the tunnel. The first-layer space comprises station hall sections arranged at intervals in the longitudinal direction. The second-layer space comprises two rail-mounted areas extending in the longitudinal direction, a comprehensive pipe gallery and a platform interval corresponding to the station hall interval. The two rail-mounted areas are arranged on the two transverse sides of the comprehensive pipe gallery correspondingly, and the platform section is arranged on the top of the comprehensive pipe gallery. Each access channel comprises a lifting vertical shaft extending in the vertical direction, and a lifting vertical ladder is arranged in each lifting vertical shaft. The tunnel and station integrated structure suitable for the soft soil stratum can adapt to the geological environment of the soft soil stratum, the excavation range of the ground in the station construction process can be reduced as much as possible, and the safety of the whole station structure and access channels can be guaranteed while the excavation work amount is reduced.

The invention discloses a comprehensive pipe gallery operation positioning and visual data processing system and method, belongs to the technical field of intelligent monitoring and management, and aims to solve the problems of poor data synchronization, weak dynamic adaptation, high false alarm rate and the like. According to the system, positioning and visual data are calibrated at a millisecond level through the timestamp alignment module, and multi-source data synchronization is ensured; a graph neural network GNN is used for fusing multi-sensor data, a personnel-equipment-environment space-time correlation graph is constructed, a dynamic digital twinborn body is generated in combination with a BIM model, and real-time monitoring and fault early warning are achieved; the visual optimization module can dynamically correct false detection, significantly reduce false alarm rate and bandwidth occupation, and optimize data transmission; the data processing method based on the system comprises the following steps: calibrating multi-modal data, and compensating clock drift; constructing a space-time correlation graph, and distributing dynamic weights; analyzing a visual result in real time, training and updating model parameters, and compressing data to reduce bandwidth; and the method is suitable for power stations, urban pipe galleries and other scenes.

The invention discloses an internet-of-things-driven underground pipe gallery grouting material leakage monitoring method and system, and relates to the technical field of data processing and analysis, and the method comprises the steps: obtaining a dynamic parameter data set; generating a grouting leakage feature vector; positioning a potential leakage coordinate according to the leakage risk grade; and triggering a grading early warning instruction through the Internet of Things platform. The technical problems of multi-source data isolation, low positioning precision and early warning lag in a traditional monitoring means in the underground pipe gallery grouting project are solved, and the technical effects that multi-source data fusion analysis is achieved, the positioning precision is improved, leakage early warning can be conducted in time, and then safe and stable operation of the underground pipe gallery grouting project is guaranteed are achieved.

The invention relates to the technical field of pipe gallery data processing, and discloses a lightweight three-dimensional modeling underground comprehensive pipe gallery intelligent data processing and monitoring system comprising a space-time alignment module which generates a centimeter-level space-time coordinate system and synchronizes multi-source data; the dynamic modeling module dynamically adjusts the voxel resolution based on engineering specification parameters, performs modeling on an abnormal region, and performs sparse coding compression on a non-abnormal region; the self-organizing semantic anchor point module generates virtual anchor points at force transmission path nodes, dynamically associates data in a radius and binds a maintenance record; the anomaly deduction module deduces a risk area along a force transmission path based on a mechanical model and triggers directional scanning; the closed-loop feedback module dynamically optimizes modeling parameters and data association rules, and excessive occupation of hardware resources by traditional full-amount modeling is avoided while the real-time performance of system response is ensured.

The invention relates to the technical field of gas detection, and discloses an underground pipe gallery leakage gas identification system based on infrared spectroscopic analysis, comprising an acoustic sensor unit passively monitoring a pipe gallery acoustic signal and generating a wake-up instruction and azimuth information, the infrared spectrum analysis module emits infrared beams with specific wavelength combination to a pre-estimated leakage sector according to the azimuth information and receives a returned light signal to generate spectral data; and the control processing unit analyzes the spectral data and judges and confirms a leakage event in cooperation with the azimuth information. According to the method, energy efficiency mode innovation from continuous scanning to event driving is realized through a cooperative mechanism of acoustic triggering and infrared directional detection, and the accuracy and response speed of trace leakage identification in a complex environment are remarkably improved by combining a differential spectrum technology and spatial coding logic verification.

The embodiment of the invention provides a nuclear power plant comprehensive pipe gallery inspection method and system, electronic equipment and a storage medium, and belongs to the technical field of inspection robots. The method comprises the steps that a track is arranged in the comprehensive pipe gallery, and an inspection robot is installed on the track; obtaining an inspection starting instruction, and executing an inspection operation based on the inspection starting instruction; acquiring corresponding environment sound data in a process of executing the inspection operation in real time; transmitting the environment sound data to a local server, so that the local server inputs the environment sound data to a sound analysis model for anomaly recognition analysis to obtain an anomaly recognition result, and determining an abnormal inspection area based on the anomaly recognition result and the inspection position data of the inspection robot; receiving an abnormality identification result and an abnormal inspection area transmitted by the local server; and performing fine positioning in the inspection abnormal area based on an abnormal identification result, and determining a target abnormal source. The embodiment of the invention can safely and reliably inspect the utility tunnel of the nuclear power plant.

The invention discloses a block type underground comprehensive pipe gallery, and belongs to the technical field of underground comprehensive pipe galleries, the block type underground comprehensive pipe gallery comprises a plurality of pipe gallery units arranged in the extending direction of the pipe gallery, each pipe gallery unit comprises at least two block splicing box culvert bodies connected through connecting plug-ins, and the side faces of the block splicing box culvert bodies are provided with a plurality of height adjusting connecting grooves arranged side by side; the block splicing box culvert body comprises an upper prefabricated corridor body and a lower prefabricated corridor body, a connecting protruding strip of the lower prefabricated corridor body is arranged in a butt joint sliding groove of the upper prefabricated corridor body, and at least one positioning mechanism is arranged in the upper prefabricated corridor body. By the adoption of the block type underground comprehensive pipe gallery, construction is easy, the relative height of the block splicing box culvert bodies can be adjusted, and construction of specific engineering is facilitated.

This application relates to the technical field of utility tunnels, and provides an intelligent identification and prevention and control linkage system for cable fires in utility tunnels. In this system, a cable fire simulation device is used to simulate cable fires in the utility tunnel; an image acquisition unit is used to monitor the cable fire behavior in the tunnel in real time, and the collected simulated fire image information is transmitted to the deployed fire identification model in real time for fire identification, so as to judge the fire identification results of the fire identification model through the deployed fire warning model, and issue a fire extinguishing command or a warning command according to the judgment results; furthermore, after receiving the fire extinguishing command, the fire extinguishing linkage device responds, and the self-made fireproof rolling shutter with flexible steel brushes is first activated to block the fire point area; subsequently, the telescopic end of the electric push rod installed on the top of the tunnel quickly extends to break the heat-sensitive glass ball of the suspended fire extinguisher, realizing the rapid linkage prevention and control of cable fires in the tunnel.

We provide a digital twin system for detecting and locating natural gas leaks in utility tunnels based on sound source localization. [Solution] In this system, a methane sensor is placed in the natural gas chamber of a common utility seismic tunnel, and when it detects that the methane concentration has reached a preset threshold, it sends an alarm signal to a mobile unit. The mobile unit autonomously moves to the natural gas leak area in the natural gas chamber based on the alarm signal and collects natural gas leak acoustic signals. The signal collection and location unit performs leak location for the natural gas leak source using a leak acoustic difference algorithm and feeds back the location of the located natural gas leak source to the mobile unit. The mobile unit autonomously moves to the location of the natural gas leak source and transmits the location of the leak source to a data aggregation unit on the common utility seismic tunnel server. The twin system updates the location results in a digital twin model in real time and virtually visualizes the common utility seismic tunnel.

The utility model relates to a utility tunnel cable support, including corbel, pre-buried groove body and first locking component, pre-buried groove body is equipped with the chute, the first locking component is connected with the chute movably, first locking component has the first limit portion that matches the chute, the first limit portion is used for restricting the first locking component not to rotate relative to the pre-buried groove body, and the first locking component is fixed on the corbel. The supporting arm is connected with the first locking assembly, and the first locking assembly is used for locking the supporting arm to be fixed relative to the embedded groove body. The utility model further relates to an installation device of the comprehensive pipe gallery cable support. According to the pipe gallery support, the first limiting part is arranged, so that the first locking assembly cannot rotate relative to the pre-buried groove body, the supporting arm can be rapidly assembled with the pre-buried groove body, the stability of the supporting arm is good, and the pipe gallery support belongs to the technical field of pipe gallery supports.

The construction structure comprises a cushion layer, and the pipe gallery is placed on the upper surface of the cushion layer. The two sides of the pipe gallery are of inclined slope structures. Working pits are formed in the bottoms of the side slope structures, a plurality of vertical jacking jack foundations are poured at the working bottoms, vertical-face grooves are formed in the portions, on one sides of the working pits, of the side slope, and back walls are poured in the vertical-face grooves; a vertical jack is fixed on the upper surface of the vertical jacking jack foundation; a jacking point at the front end of the vertical jack is matched with the lower surface of the pipe gallery; a horizontal jack is fixed to the side surface of the back wall, and a jacking point at the front end of the horizontal jack is matched with the side surface of the pipe gallery bottom plate. A first steel plate is padded between the horizontal jack and the surface of the pipe gallery; a second steel plate is cushioned between the vertical jack and the surface of the pipe gallery; the device can quickly and accurately complete pipe gallery deviation rectification after floating displacement, and it is guaranteed that the pipe gallery meets the use function and construction quality acceptance requirements after deviation rectification and resetting.

The invention provides a park data analysis system and method based on a pipe gallery combined sensor, and belongs to the technical field of data processing and resource scheduling. The method comprises the following steps: collecting at least two groups of park monitoring data sets sent by at least two groups of monitoring sensors in a pipe gallery combined sensor; performing result output analysis on the at least two groups of park monitoring data sets by adopting a local prediction model to obtain at least two groups of prediction output results; based on the at least two groups of park monitoring data sets and the at least two groups of prediction output results, determining a current pipe gallery data analysis mode; based on the current pipe gallery data analysis mode, sending an activation instruction to a back-end control platform, so that the back-end control platform starts or switches to a target cluster resource corresponding to the current pipe gallery data analysis mode; the analysis mode of the multi-dimensional to-be-analyzed data generated by the pipe gallery combined sensor is pre-judged in advance, then cluster resources matched with the multi-dimensional to-be-analyzed data are scheduled for processing, and resource waste can be avoided while result output delay is reduced.

The invention provides an underground pipe gallery temperature field evaluation method and device, and relates to the technical field of fire detection and artificial intelligence. The evaluation method comprises the following steps: respectively determining fire source parameters and pipeline parameters corresponding to an underground pipe gallery based on a fire source numerical interval corresponding to reference fire source information of an existing pipe gallery, a pipeline numerical interval corresponding to reference pipeline information and pipe gallery information of the underground pipe gallery; taking at least one parameter of the power parameter, the heat release rate, the space parameter, the plane parameter, the section parameter and the size parameter as a variable, taking the remaining parameters as invariables, and performing combination to obtain a plurality of pieces of combination information; processing the multiple pieces of combined information to obtain temperature characteristics, temperature change characteristics and pipe gallery spatial characteristics of the underground pipe gallery; and inputting the temperature characteristics, the temperature change characteristics and the pipe gallery spatial characteristics into an evaluation model, and outputting a temperature field evaluation result corresponding to the target pipe gallery. Through the method, the flexibility and accuracy of underground pipe gallery temperature field evaluation can be improved.

The invention discloses an underground comprehensive pipe gallery pipe explosion early warning method and system, and relates to the field of safety monitoring of underground comprehensive pipe galleries in urban infrastructure construction. According to the method, a high-frequency pressure meter, a hydrophone and a flow meter are installed at key positions of a water supply pipeline, pipeline pressure, sound and flow data are monitored in real time, pressure transient change, abnormal noise and flow change in the pipeline are recognized through a signal analysis algorithm and a machine learning algorithm, and therefore early warning of a pipe explosion event is achieved. And the operation safety and reliability of the pipe gallery are improved.

The utility model discloses a small-clear-distance large-section tunnel and pipe gallery co-construction structure which comprises a secondary lining structure on the outer layer of a large-section tunnel, an inverted arch is horizontally arranged in the secondary lining structure, a comprehensive pipe gallery is arranged at the bottom of the inverted arch, the comprehensive pipe gallery comprises a comprehensive cabin and a high-voltage power cabin, and the high-voltage power cabin is arranged in the secondary lining structure. A motor vehicle lane, a bicycle lane and a sidewalk are arranged on the upper side of the inverted arch. An anchoring and shotcreting construction method is adopted for a large-section tunnel, one-way simultaneous tunneling is conducted on east and west lines, a double-side-wall pilot tunnel, CRD and CD construction method is adopted according to different geological conditions, and excavation is conducted in a mechanical and manual cooperation mode. The utility model aims to provide a small-clear-distance and large-section tunnel and pipe gallery co-construction structure for a large-span, small-clear-distance and large-section tunnel and a pipe gallery.

The application is suitable for the technical field of prefabricated comprehensive pipe gallery, and provides a light prefabricated comprehensive pipe gallery, which comprises a plurality of pipe gallery bodies and sealing connection mechanisms, two pipe gallery bodies are sealingly connected through the sealing connection mechanisms, and further comprises a bottom plate, a fixed sliding block is fixed on the pipe gallery body, a guide sliding groove is arranged on the bottom plate, and the fixed sliding block is slidingly connected on the guide sliding groove. The cable is placed on the guide roller, the cable is pulled through the rotation of the guide roller, when the cable arrangement is completed, the fixing assembly releases the restriction of the pressing plate, the first spring pulls the pressing plate to rotate downward, the pressing plate cooperates with the guide roller to fix the cable, the reverse restriction assembly restricts the pressing plate from rotating away from the guide roller, the rotation stopping assembly restricts the rotation of the first rotating shaft through the rotation of the pressing plate to the guide roller, and then the fixing of the pressing plate and the guide roller to the cable is more stable, and then the cable arrangement and fixing are facilitated.

The present invention discloses an intelligent cable fault location system for an integrated utility tunnel, which relates to the technical field of cable fault location. The system includes a flaw detection module, an environmental monitoring module, a cable performance information acquisition module, a first neural network model module, a model update module, and a cable fault intelligent prediction module. By setting up the flaw detection module, the environmental monitoring module, the cable performance information acquisition module, the first neural network model module, the model update module, and the cable fault intelligent prediction module, the intelligent cable fault location system for the integrated utility tunnel can analyze the influence of historical environmental change amounts on mechanical damage, thereby analyzing the cable loss rate according to the environmental change amounts. When the predicted cable predicted loss rate is less than the set first loss rate threshold, the cable in the corresponding area is actively detected again, and the cable loss rate prediction model is trained and updated by using the newly added active detection data to ensure the accuracy of the model.

This invention relates to a substation structure and construction method suitable for small-section utility tunnels. The structure comprises a two-story building with side walls on the outer perimeter and a larger upper section and a smaller lower section. The lower level is a small-section utility tunnel housing municipal utility pipelines, while the upper level is a large-section substation equipment room. Several reinforced partition walls are installed below the equipment room and on one side of the utility tunnel for support, with the spaces between these partition walls filled with plain concrete. In traditional integrated utility tunnel substation structures, the width of the two-story substation is typically the same as the width of the lower standard compartment. Compared to the lower small-section utility tunnel, the upper substation has a relatively larger cross-section. The excess portion is supported by reinforced partition walls at the bottom. This design effectively increases the stability of the overall utility tunnel structure while meeting the overall functional requirements of the substation, extending its service life and fulfilling the overall usage needs of the utility tunnel.

The invention provides a top plate hydraulic formwork, and relates to the field of highway pipe gallery engineering, the top plate hydraulic formwork comprises a frame, a cross beam is fixedly connected to the inner side of the frame, a servo motor is fixedly connected in the cross beam, a linkage gear A is coaxially connected to the top of a rotating shaft of the servo motor, a hydraulic cylinder A is fixedly connected to the top of the frame, and limiting rods are slidably connected to the left and right sides of the top of the frame; a top supporting plate is fixedly connected to the top of the telescopic portion of the hydraulic cylinder A, the bottom of the top supporting plate is fixedly connected with the top of the limiting rod, side supporting plates are arranged on the left side and the right side of the frame, the side vertical faces of the side supporting plates are fixedly connected with the limiting rod, and a motor is fixedly connected to the bottom of the top supporting plate. And the top of the concrete top plate can be extruded, the top face of the concrete top plate can be flattened and shaped, the concrete top plate can be conveniently flattened and shaped, and the problem that an existing formwork cannot conveniently conduct automatic and convenient flattening and shaping on the concrete top plate is solved.

The utility model discloses a wallboard embedded column node of an underground comprehensive pipe gallery, which comprises wallboards and stirrups pre-embedded on the wallboards, the stirrups at adjacent node positions of the two wallboards are arranged in a high-low staggered manner, and vertical steel bars can be inserted into the stirrups for fixation; the front side and the rear side of the wallboard joint are sealed through inserting plates respectively. According to the utility model, the outer sheet inserting plate and the inner sheet inserting plate are arranged, so that the node is more rapid to mount and dismount, and the construction efficiency is greatly improved; the inner sheet inserting plates can be reused after pouring is completed, the turnover performance is high, and material waste and construction cost are reduced; the stirrups are arranged in a staggered mode, and the complex steps of traditional stirrup binding are simplified; during construction, the steel bar construction can be completed only by inserting the vertical steel bars into the embedded stirrups, so that the construction process is simplified, and the construction efficiency is further improved; the production of perforated holes is avoided, the attractiveness and the overall performance of the wall body are ensured, the durability of the wall body is improved, and the service life of the wall body is prolonged.

The invention discloses a BIM + MR underground comprehensive pipe gallery emergency management method and system based on a network collaborative architecture. The method comprises the steps that a pipe gallery BIM model is split and compressed; mR gesture interaction is carried out; building a PUN (Physical Unclonable Network) network architecture; multi-terminal management synchronization and recording; space anchor point positioning; and on-site in-situ remote management is realized. According to the method, a gesture interaction comprehensive pipe gallery BIM semantic segmentation model is realized by using a mixed reality technology; and multi-terminal low-delay network collaborative management is realized through a distributed synchronization framework of the PUN. When an emergency situation occurs in the underground comprehensive pipe gallery, low-delay cooperative management of remote experts and field personnel is supported, a three-dimensional emergency command system with virtual-real linkage is formed, and cooperative processing efficiency and decision scientificity are improved for emergency management of the underground comprehensive pipe gallery.

The utility model discloses a utility tunnel inner pre -buried plate installation positioner, including the two vertical support of affixing in the concrete form outside, the sliding connection of vertical support between multiple horizontal supports, set up at least two locating pin holes on horizontal support, and multiple support bolt passes through locating pin hole and concrete form on horizontal support in proper order, and the pre -buried plate upper end portion limit of concrete form inside, and support bolt one end is welded with pre -buried plate, and the other end is connected with horizontal support. The device stands in the concrete form outside, and the pre -buried plate is placed in the concrete form inside, and after the pre -buried plate upper end portion limit of support bolt, realizes the firm fixing of pre -buried plate and first form and the device through welding etc. The device can realize the quick, accurate positioning of multiple pre -buried plates, is not easy to be disturbed displacement in the concrete pouring process, greatly improves the efficiency of utility tunnel electromechanical installation pre -buried plate installation work, and can be repeatedly used.