112 results about "Underground space" patented technology

This application belongs to the field of wireless communication technology and provides a general channel modeling method for communication of autonomous vehicles in underground spaces. The method includes: first, initializing model parameters and calculating path loss based on the scene; then, updating the orientation of the transceiver antennas using an attitude matrix and calculating their three-dimensional real-time positions; subsequently, selecting appropriate mechanisms to generate scattering clusters according to different underground scenarios such as pillar-type, tunnel-type, and cave-type, and updating their survival status based on the vehicle's motion state; next, generating and evolving specular multipath components and dense multipath components formed by specular reflection and diffuse scattering within each surviving scattering cluster; finally, combining line-of-sight and the two types of multipath components to calculate the time-varying channel impulse response and generate the channel matrix. This application can provide a more accurate and reliable general channel model foundation for the design, deployment, and performance evaluation of 6G underground communication systems, effectively supporting high-reliability communication assurance for underground autonomous vehicles.

The application discloses a kind of underground space optical cable high fidelity sound restoration method based on DAS system, comprising: the real-time signal collected to optical cable is carried out data demodulation, identify whether it contains energy impact signal generated by the optical cable after being padded and being hit, if it contains, the energy abnormal distribution position in energy impact signal is positioned, obtains positioning point;Continuous analysis time domain signal of positioning point, after filtering low-frequency interference signal, phase anomaly signal is rejected;The sound signals of a plurality of equivalent sensing nodes adjacent to the positioning point are superimposed and averaged to suppress additive noise, and then the sound signal is restored.The application can realize rapid positioning according to the spatial distribution mapping relationship of optical cable, and after filtering background noise from the collected signal, the highly correlated signals of multiple spatial sensing nodes near the positioning position are linearly superimposed to suppress additive random noise, and high-fidelity sound signal restoration is realized.

This invention discloses an uncertainty-based method for three-dimensional reconstruction and intelligent sampling of underground space, comprising the following steps: Step 1: Constructing a multi-source heterogeneous data acquisition system and performing data preprocessing and spatiotemporal registration; Step 2: Extracting multimodal heterogeneous features and unifying spatial mapping based on deep learning; Step 3: Constructing a high-fidelity three-dimensional reconstruction volumetric model of underground space based on adaptive octree subdivision; Step 4: Constructing a high-fidelity intelligent sampling database containing a Bayesian dynamic update layer; Step 5: Performing uncertainty assessment-driven sampling-assisted decision-making to update the database. This invention solves the problems of insufficient depth of multi-source data fusion, low fidelity due to rigid three-dimensional modeling mesh, and lack of an uncertainty-based active sampling feedback mechanism in the prior art, achieving accurate characterization of complex strata and pollution distribution and intelligent feedback of sampling decisions.

The present application belongs to the field of tunnel advanced prediction technology, and discloses a tunnel advanced prediction electromagnetic observation system and a detection method. The observation mode of surface emission, underground reception, multi-source emission and multi-component reception is adopted. In this mode, high-power emission can be conveniently used, the problems of high transportation cost in the tunnel and low signal-to-noise ratio of collected data are improved, the coverage area of observation data can be improved, and more effective information can be obtained. Based on the observation system, a tunnel advanced prediction inversion algorithm based on deep learning is developed, quasi-three-dimensional joint inversion of multi-component, time-domain and frequency-domain signals is realized, the advantages of deep learning algorithm are fully utilized, time-domain and frequency-domain electromagnetic signals are fully utilized, the calculation efficiency and detection precision of inversion are improved, the non-uniqueness in inversion is reduced, and rapid imaging of underground space structure is realized.

The application relates to a permanent and temporary combined loop pipe roof underground excavation construction subway station tunnel arch opening reinforcing structure and a construction method, and belongs to the underground space construction technical field. The structure comprises a temporary support structure and a permanent support structure. The temporary support structure comprises pipe roof lining arranged on the lower sides of loop pipe roofs near the opening area on both sides, and door-shaped support steel frames are arranged under the pipe roof lining and fixed to the bottom of the tunnel. The permanent support structure comprises a loop reinforcing beam, a longitudinal reinforcing beam and pipe roof anchor bars. The longitudinal reinforcing beam is arranged along the cross sections of the loop pipe roofs on both sides of the opening area. One end of the pipe roof anchor bar is implanted into the cross section of the loop pipe roof, and the other end is implanted into the longitudinal reinforcing beam. Loop reinforcing beams are arranged under the two ends of the longitudinal reinforcing beam. The loop reinforcing beam is fixed to the loop pipe roof in the non-opening area through loop reinforcing beam anchor bars. The temporary support structure and the permanent support structure are combined, the tunnel arch structure can be reinforced under the condition of a large opening, a new stable stress system can be formed after the loop pipe roof is partially cut off, and the safety of the tunnel construction is ensured.

This utility model belongs to the field of parking guidance devices and discloses an underground space parking guidance device. The device features a detachable guide plate and a fixing block. When it is necessary to replace the guide plate with different slogans, the guide plate can be replaced by disassembly and installation. When there are enough parking spaces in the parking lot and no guidance is needed, the guide plate can be rotated and stored in the baffle through the flipping mechanism, thereby changing the position and state of the guide plate and canceling the signage and guidance effect of the guide plate. The detachable guide plate and the changeable position and state of the guide plate improve the applicability of the device in complex and ever-changing parking scenarios.

The application discloses a waterproof and flexible lining support structure for underground space, which is formed by splicing segments; a water stop pad is arranged at the butt joint of adjacent segments so as to form a filling cavity at the butt joint of the segments; a grouting flow channel is arranged in the segment, the outlet of the grouting flow channel is arranged in communication with the filling cavity, the inlet of the grouting flow channel is arranged in communication with the outside, a lining pad is arranged in the area surrounded by the water stop pad, the lining pad is located in the filling cavity, polymer slurry can be injected into independent sub-areas through the grouting flow channel to form multiple barrier structures, the lining support structure has good waterproof effect and is not prone to water leakage under the action of vibration; and the waterproof and flexible lining support structure for underground space can be used as an underground vertical shaft parking lot or a tunnel lining structure.

The application discloses an underground space unmanned sensing and detecting system and method, wherein an unmanned detecting carrier platform acquires underground space surface layer data through a sensing radar holder and a unmanned aerial vehicle; then, the detecting target area is determined and the driving path is planned according to the acquired data; meanwhile, the unmanned detecting carrier platform places self-organizing network relay nodes at different positions through a mechanical arm and in combination with signal strength, so that a self-organizing network is finally formed, and the communication between the unmanned detecting carrier platform and the unmanned aerial vehicle in the underground space is ensured to be normal; when the unmanned detecting carrier platform drives to the target area, a seismic observation system is formed through the laid node type detector, and an active seismic source and a transient electromagnetic detecting device are started respectively, so that the seismic wave data and the transient electromagnetic data of the target area are acquired; the application can realize the sensing modeling of the underground space in an unmanned mode, and can also accurately acquire the detecting data of the whole underground space, thereby being convenient for the subsequent analysis and processing of the underground space data.

The application discloses a kind of underground space geological environment overall characteristics three-dimensional characterization and evaluation device, it is related to underground space geological detection and evaluation technical field, including data acquisition module, data preprocessing module, three-dimensional characterization module, comprehensive evaluation module, central control module and display output module, each module is electrically connected by wire or wireless communication module;Data acquisition module is used to collect original data, including geological body physical parameter data, stratum lithology data, borehole data and adverse geological body detection data;The data acquisition module includes detection unit, borehole data acquisition unit and auxiliary positioning unit, and the detection unit integrates OCTEM detection unit, geological radar detection unit and mu imaging detection unit;Data preprocessing module is used to preprocess the multi-source original data collected by data acquisition module, realizes the synchronous collection of underground space geological environment multi-source data, efficient fusion, high-precision three-dimensional characterization and scientific comprehensive evaluation.

This invention belongs to the field of mobile robot technology, specifically relating to a "walking-moving" composite six-legged robot based on a heterogeneous dual parallel mechanism. The robot includes an inner upper platform, three outer upper platforms and a lower platform, three parallel mechanical legs, three series branches, and three telescopic legs. The inner upper platform is hinged to the three outer upper platforms, forming a foldable equilateral triangle structure. The three series branches of the UPU configuration are respectively connected to the inner upper platform and the lower platform, forming a 3-UPU parallel mechanism. The three 2RUS&UP configuration mechanical legs are fixed to the outer upper platforms via fixed plates, and the axes of the three UP branches pass through the respective apex corners of the outer upper platforms. Stepping and posture adjustment are achieved by alternately controlling the pose of the 2RUS&UP parallel mechanical legs and changing the telescopic length of the UPU series branches. The alternating stepping of the parallel mechanical legs and the series branches enables the robot to adapt to various complex terrains such as irregular steps, narrow passages, and sharp turns, which is of great significance for exploring complex underground spaces with diverse terrains.

The application relates to the technical field of underground space steel-concrete structure support reinforcement, and particularly discloses a high-strength steel-concrete structure mounting device which comprises a foldable annular support frame, the annular support frame comprises a plurality of arc-shaped rods, the arc-shaped rods are sequentially hingedly connected in a head-to-tail mode, one transition rod is hingedly connected to each of the two arc-shaped rods at two ends, a base is hingedly connected to each of the transition rods, and two arc-shaped beams are rotationally connected between the two bases. The foldable annular support frame is greatly reduced in volume in a folded state, so that the folded annular support frame can easily pass through the inner hole of a previously installed and fixed annular support frame; the conical hole formed by the combination of the inclined rods when the arc-shaped beams are unfolded is used as a precise positioning reference, so that the anchor rod hole can be conveniently and accurately drilled and the grouting anchor rod can be installed.

The application relates to the technical field of tunnel engineering, and discloses a tunnel automatic energy capturing device and a construction method, which comprises a self-adaptive efficiency wind power generation module and a dual-mode energy storage power supply module for supplying power to equipment in the tunnel. The self-adaptive efficiency wind power generation module comprises a mounting support and a wind wheel power generation structure, and the mounting support is arranged at a tunnel arch foot. The wind wheel power generation structure comprises self-adaptive angle blades, a rotating shaft and a generator. The self-adaptive angle blades can adjust the deflection angle according to the wind speed. A plurality of self-adaptive angle blades are arranged in a circumferential direction on the rotating shaft. The rotating shaft is connected with the input end of the generator, the generator is arranged on the mounting support, and the generator is electrically connected with the dual-mode energy storage power supply module. The application solves the problems of insufficient wind wheel adaptability and low wind energy utilization rate of the existing device, solves the problems of difficult power supply of heavy railway tunnel underground space, poor adaptability of equipment and tunnel environment and limited traditional pre-buried installation construction.

The application provides a kind of underground pipeline pipe gallery resource interconnection method and device based on large language model, belongs to computer technology field, specifically includes obtaining the pipeline detection data of all underground pipelines in target area, constructs global topology knowledge graph;Extract local topology knowledge graph from global topology knowledge graph;The structured text is obtained by converting local topology knowledge graph, and the pipeline gallery resources in structured text are evaluated and filtered using a large language model, to obtain structured text with compatibility evaluation label;Using a large language model, execute logical reasoning based on the local topological relationship represented by the structured text with compatibility evaluation label, generate reasoning results that meet pipeline planning and complete path chain from start to end;Based on the reasoning result, a candidate interconnection scheme is generated. Through the processing scheme of the present application, an interconnection scheme is generated that takes into account the reuse of existing resources, cost control and safety compliance, improving the intensive utilization efficiency of urban underground space.

This invention provides a measuring device and method for sealing abandoned mine shafts, relating to the field of underground space measurement technology. The measuring device includes a control terminal, a load-bearing communication cable, and a cable winch; it also includes an underground detection component and a positioning component, the positioning component consisting of a support mechanism and a control mechanism. This invention also discloses a method for using the measuring device. The underground detection component in this invention provides a reliable basis for accurately allocating sealing materials, while the positioning component provides support and positioning force for the underground detection component. It can also automatically adapt to the working conditions of abandoned mine shafts. In the event of severe collapse and blockage, high-value detection equipment can be successfully extracted, demonstrating strong flexibility, stability, and practicality.

This invention belongs to the field of building emergency evacuation technology, specifically disclosing a method for the safe evacuation of personnel in deep underground buildings and their clusters, combining vertical and horizontal elements. Based on the concept of a shared safety zone in deep underground buildings, it proposes a method for three streams of people to evacuate simultaneously in the stairwell in an "upward-downward-upward" manner. The building is divided into three evacuation spaces of equal level (upper, middle, and lower), with two evacuation direction conversion points and one shared safety zone. Personnel in the upper evacuation space evacuate upwards to the ground via the nearest evacuation direction conversion point. Personnel in the middle and lower evacuation spaces evacuate via the second evacuation direction conversion point, leading to the shared safety zone. This provides a deep underground building cluster technology with an infinitely scalable and resilient evacuation network, forming a new design and planning method. The advantages of this invention are: extremely compressed total evacuation time, significantly improved reliability of underground spaces under extreme disasters, and the realization of intensive and sustainable development.

This invention belongs to the field of underground construction safety inspection, and provides an intelligent inspection system and method suitable for composite support structures in underground spaces. The system acquires BIM parameters and real-time monitoring data of the support structure, extracts features to obtain monitoring feature vectors, calculates BIM confidence, monitoring confidence, and monitoring feature confidence, and handles data conflicts based on the relationship between these confidence levels and preset arbitration rules to obtain conflict-free fused data. A digital twin of the support structure is constructed based on the conflict-free fused data for simulation, yielding the damage index and the distribution of contact stress between the surrounding rock and the support. This invention solves the problems of data fragmentation, poor dynamic adaptability, heterogeneous data fusion conflicts, weak interpretability, low generalization ability, and rigid intervention in traditional underground space composite support inspection.

The application relates to the technical field of data processing, and discloses a garden landscape intelligent planning method based on digital twinning. The method acquires three-dimensional geological profile data of a planning area, establishes an underground soil porosity and saturation tensor field, and divides the underground space into a multi-scale hexahedral microenvironment grid; root system morphological parameters of a candidate plant community are acquired, and a plant physiological feature library containing a root system water absorption rate curve and a nutrient absorption spectrum is constructed; a spatial mapping topological relationship between an aboveground plant three-dimensional canopy model and the underground grid is established, and water potential gradient changes of the microenvironment grid under different aboveground layout schemes are calculated. The application quantitatively constrains the surface layout and the dynamic distribution of underground soil water and fertilizer, solves the problem that the surface layout is disconnected from the underground ecological carrying capacity in the prior art, leading to plant decline, and improves the ecological stability of the digital twinning planning scheme.

The application discloses a shallow-buried coal mine soft rock roadway compressed air energy storage bearing sealing structure and a construction method, and belongs to the technical field of compressed air energy storage. The shallow-buried coal mine soft rock roadway compressed air energy storage bearing sealing structure is arranged in the surrounding rock of a shallow-buried coal mine soft rock roadway, is a hollow cylindrical structure, and an internal space is used for storing compressed air; the compressed air energy storage bearing sealing structure sequentially comprises a first steel sealing layer, a first sliding layer, a first reinforced concrete lining layer, a second sliding layer, a second steel sealing layer, a third sliding layer and a second reinforced concrete lining layer from the center of the roadway to the surrounding rock of the side wall of the roadway, and the second reinforced concrete lining layer is connected with an external surrounding rock layer. The application can solve the bottleneck problems of safety, sealing difficulty and high cost of compressed air energy storage of shallow-buried coal mine soft rock underground space, and provides technical support for efficient, economic and safe utilization of a large number of abandoned shallow-buried coal mine soft rock underground space resources.

1. Name of the product in this design: LiDAR Scanner (a10). 2. Applications of this design: It can be used in fields such as power line inspection, forestry survey, mining survey, underground space information acquisition, building facade measurement, and BIM. It can scan environmental information and high-resolution panoramic images. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present application relates to a kind of ground temporary escape passage systems, including ground space structure, lifting soil breaking assembly, anti-collapse embedded part, wherein specifically: ground space structure is arranged below ground soil;Lifting soil breaking assembly is arranged in the ground space structure;Anti-collapse embedded part is embedded in ground soil, and it is correspondingly arranged above lifting soil breaking assembly, the lifting soil breaking assembly can pass through anti-collapse embedded part from bottom to top and break soil layer, realize ground space structure is connected ground escape hole The opening of opening.Compared with prior art, the ground temporary escape passage system in the technical scheme of the present application is used for small area or single house, only ground space structure, other underground space structure, lifting soil breaking assembly, anti-collapse embedded part are needed, and the four are prefabricated structure or equipment, can quickly support the construction of the system, and the scope of application is wide.

The application discloses a heterogeneous shallow surface velocity modeling method and device, equipment and a storage medium. The method obtains a three-dimensional geological structure model of a surface and underground space of a work area; based on the three-dimensional geological structure model of the surface and underground space, structural tensor is used for structural feature extraction to obtain a structural feature vector; an initial velocity model and a gradient field of the initial velocity model space are obtained; the gradient field is constrained and processed by using the structural feature vector to obtain a constrained gradient field; and the initial velocity model is optimized by using the constrained gradient field to obtain a shallow surface velocity model. The application constrains the gradient obtained by each iteration by using a shallow surface structure to obtain a high-precision shallow surface velocity model, and can solve the technical problem of inaccurate velocity modeling in the depth domain processing of complex surface seismic data such as mountains and gobi at the present stage, and improve the success rate of seismic exploration.

An adaptive adjustment method for cleaning pressure of a pleated sintered plastic plate dust collector used in mines under humid conditions is disclosed. The method includes the following steps: defining dimensionless geometric parameters to characterize the pleated structure; constructing a dimensionless correlation function between the pleated structure parameters and the wind speed field based on the wind speed field distribution on the windward side of the sintered plastic plate in the confined underground space; constructing a mathematical model to predict dust deposition distribution in the pleated region of the sintered plastic plate based on the dimensionless correlation function; constructing a cleaning resistance correction model coupling the pleated structure and the flow field, and calculating the critical peeling stress considering the pleated structure effect; establishing a fluid-structure interaction response function covering pulse jet pressure and wall shear stress, and inverting the minimum pulse jet pressure; and implementing an adaptive graded control strategy for cleaning pressure based on the inverted minimum pulse jet pressure and the allowable equivalent stress of the coating. This invention comprehensively considers the influence of multiple factors on cleaning pressure, achieving adaptive adjustment of cleaning pressure for a pleated sintered plastic plate dust collector used in mines under humid conditions.

The application provides a kind of pipe network engineering construction period intelligent remote monitoring method and system, related to underground space engineering safety technical field.The application obtains the transient dynamics parameters such as pipe network interface shear displacement, displacement rate and soil pore water pressure around pipe, and constructs system state vector and control vector by combining with construction machinery and grouting system operation boundary parameter, accurately reflects real-time dynamics state of pipe network;With pipe-soil coupling dynamics state evolution equation as constraint, with the minimum pipe network state deviation and control energy consumption as target to construct Hamilton function, and based on the pontryagin principle to solve the optimal control solution, realize the rapid deduction and global optimal control decision of pipe network deformation trend;Finally, the synchronous control instruction of mechanical frequency reduction and grouting pressurization is generated, which can complete active collaborative intervention in a very short time when high-frequency shear impact occurs, inhibit the transient shear deformation of pipe network interface, avoid interface shear separation damage, and reduce control energy consumption.

This invention discloses a three-dimensional semantic perception and dynamic risk adaptive avoidance system and method for cave rescue, including a multi-source data access module, a three-dimensional point cloud semantic mapping module, a fracture dynamic risk assessment module, a rescue danger radius dynamic adjustment module, and a robotic arm autonomous positioning and navigation module. Through synchronous acquisition of multi-source data, geometric-texture joint feature extraction, rock mass semantic segmentation and static risk assessment, fracture dynamic evolution prediction, dynamic and static risk fusion cost map construction, danger radius adaptive optimization, and low-risk path planning and dynamic replanning of the robotic arm, it achieves fully closed-loop intelligent control from front-end perception to back-end execution in cave rescue scenarios. This invention solves the problems of single spatial perception dimension, insufficient fusion of dynamic and static information, delayed risk response, and fragmented data chains in existing technologies, significantly improving the safety, timeliness, and success rate of cave rescue, and is applicable to emergency rescue scenarios such as cave collapses and underground space disasters.

The utility model relates to underground hydraulic support quick removal technical field discloses a kind of guiding haulage device for underground hydraulic support quick removal, including guide rail, the guide rail inside is provided with guide slot, the guide rail top is slidably connected with sliding plate, the sliding plate lateral wall is rotatably connected with pulley, the pulley is slidably connected in the guide slot inside, the sliding plate top is provided with hydraulic support, the hydraulic support lateral wall is fixedly connected with tow ring pole, the sliding plate lateral wall is fixedly connected with connecting plate, the connecting plate is slidably connected in the guide rail top, the guide rail top is provided with multiple limit grooves. In the utility model, the pulley of the sliding plate lateral wall is driven along guide slot by the guide slot inside guide rail, so as to reach the effect that hydraulic support is quickly removed, solve the problem that hydraulic support moves difficultly, positioning is not accurate due to narrow underground space, improve the efficiency and stability of removal process.

The utility model discloses an underground space sound absorption ceiling structure unit and ceiling system, including arc's frame structure, a plurality of square keel frame, a plurality of hanger muscle parts and a plurality of decorative board, arc's frame structure is fixed on the top wall body of chamber, and at least one sound absorption component I is installed in the frame structure, a plurality of square keel frame is arranged along the chamber width direction and is parallelly arranged, and the height of every column keel frame is not exactly the same, is used for dispersing sound wave, one end of hanger muscle part is connected with keel frame, and the other end is connected with frame structure, is used for suspending the keel frame in chamber top, and the decorative board is installed on the keel frame, and at least one sound absorption component II is installed between decorative board and keel frame. The utility model has good sound absorption, can be good at insulating noise propagation, and improves the inside sound control effect.

This invention relates to a method and structure for underground space expansion based on a pre-cut groove and load-bearing system. Underground expansion projects may cause ground displacement, posing safety hazards to the surrounding environment. This method involves opening holes in the sidewalls of existing underground structures, removing reinforcing steel from the sidewalls and retaining structures according to the outline of the pre-cut groove; drilling laterally at the opening location, then longitudinally extending and cutting to form the pre-cut groove, simultaneously injecting concrete into the pre-cut groove; excavating small pilot tunnels and shafts below the cover plate; constructing support piles within the shafts; fully excavating and constructing the bottom slab, sidewalls, and top slab; pouring a ring beam, and integrally superimposing the ring beam with the cover plate, top slab, sidewalls, and longitudinal beams. In this invention, the cover plate injection and pre-cut groove construction are synchronized, achieving the effect of cutting and constructing simultaneously. Furthermore, a high-rigidity pipe roof is installed within the cover plate thickness to achieve cover plate-type advanced support. The support piles and cover plate form a vertical plate-column type advanced support force transmission system, effectively avoiding ground displacement that may occur during underground project expansion.

This invention relates to the field of underground space utilization and engineering technology, and particularly to a method for preventing siltation in underground coal mine reservoirs. In this invention, a filter tank is installed on the water injection pipeline to filter large-diameter particles; a discharge pipeline is installed on the inner side of the artificial dam body of the underground reservoir to increase the discharge space; a connecting hole is left on the artificial dam body of the connecting roadway between adjacent underground reservoirs to connect adjacent goaf areas; water injection pipes are laid through boreholes drilled into the goaf area from the rock strata above the underground reservoir; water injection pipes are laid through boreholes drilled into the goaf area from the bottom plate of the underground reservoir; and discharge pipes are laid through boreholes drilled into the goaf area from the artificial dam body. This method can reduce the risk of siltation at the reservoir's water injection point and increase the service life of the underground coal mine reservoir.

The application discloses a kind of underground space precipitation well plugging structure and construction method, belong to underground space construction technical field.The application includes retaining wall steel pipe, its inside is equipped with restraint ring and the hooking plate of hooking ring, plugging ring one, flexible sealing ring one;Elastic telescopic pipe bottom is equipped with conical ring, top is equipped with restraint disc with one-way body, plugging ring two, flexible sealing ring two and expansion piece are successively sleeved on it.Carry out construction by pulling back, make conical ring and hooking plate lock, flexible sealing ring one radial seal, while expansion piece inner tear piece breaks and makes water and bentonite mix and expand, plugging ring two is pushed down, and flexible sealing ring two is pressed on plugging ring one to form multiple seals.The application uses one pulling back operation to trigger multiple responses, realizes mechanical locking and material expansion cooperation, reliable and durable plugging, effectively avoids later leakage, and construction is simple, low in cost.