1430 results about "Geological disaster" patented technology

The invention discloses an intelligent positioning method of mine microquake sources, which is a microquake resource intelligent positioning system which comprehensively considers various influencing factors and targets, and integrates with sensors distribution-noise wave filtration-microquake source positioning analysis-three-dimensional display in to a whole. The method realizes the real-time analysis and the forecast of the incubation, the development and the occurrence of mine underground geological disaster through a self-developed procedure, solves the defects that the traditional sensors distribution method is not systematic, the noise wave filtration is incomplete, the microquake wave speed model is not exact and the positioning method is easily diffused, and has the characteristics of friendly operation interface, good noise wave filtration performance, exact, convenient and fast microquake source positioning analysis, visual and pictorial result display, and wide application range. The method has wide application value in the fields of mineral engineering, water conservancy and electric power engineering, petroleum engineering, soil engineering and underground engineering and the like.

The invention relates to a monitoring and prewarning system and a monitoring and prewarning method for geological disasters. The monitoring and prewarning system for the geological disasters comprises a plurality of global navigation satellite system (GNSS) monitoring stations 1, a continuous operational reference system (CORS) 2, a 3rd-generation (3G) wireless network or wireless bridge 3, a microwave communication system 4, a monitoring and prewarning server 5, a monitoring and prewarning central computer 6 and the like which are arranged in a monitored area. Each GNSS monitoring station 1 comprises a global positioning system (GPS) receiver 11, a 3G network transmission component 12, video monitoring equipment 13, a microwave communication transmission component 14, a power supply 15 and the like. In the method, the aims of forecasting and prewarning possibly initiated geological disasters automatically in real time can be fulfilled by setting the GNSS monitoring stations in areas liable to the geological disasters, monitoring ground surface displacement in real time by the CORS, performing real-time ground surface displacement monitoring on the geological disasters, such as collapse, landslide, debris flow, surface collapse, subsidence, ground fissure and the like, which can be caused by ground surface displacement, combining remote video monitoring, performing data processing on monitoring information, and automatically issuing prewarning information.

The invention discloses a geological disaster emergency plan digitization system which comprises a data acquisition transmission layer, a database management layer, a data driving layer and an application layer. The data acquisition transmission layer is positioned at the lowermost part of the digitization system and used for acquiring and transmitting data relating to a geological disaster; the database management layer is positioned on the data acquisition transmission layer and used for storing and processing various data information used in the system; the data driving layer is connected with the database management layer and used for taking charge of managing and supporting various data; the application layer comprises an emergency plan visualization subsystem and a plan dynamic deduction subsystem and is used for managing various functions provided by the system. The geological disaster emergency plan digitization system adopts technical means of a modern computer, a network, IOT (Internet Of Things), a GIS (Geographic Information System), a GPS (Global Positioning System) and the like, researches and develops a digital geological disaster emergency plan and implements high efficiency and visualization in the process of executing the geological disaster emergency plan so as to implement digitization and intelligentization of the geological disaster emergency management work.

The invention discloses a mobile monitoring fusion platform based on a geographic information system (GIS), which belongs to the technical field of network communication. The platform comprises a monitoring center and a mobile monitoring station which are connected with each other in a wireless mode, wherein the mobile monitoring station comprises a monitoring unit, a moving posture sensor, a data acquisition plate, a data analysis module, a synchronous encoding module, a storage module, a global positioning system (GPS) module, a data processing module, a remote communication module and a central controller; the monitoring center comprises a remote communication module, a synchronous decoder, a monitoring databank, a data fusion module, a GIS geographic information system, a display module and a man-machine interaction control module. Monitoring data is transmitted to the monitoring center in the wireless mode after being acquired and treated, and the monitoring center receives and decodes the monitoring data and subsequently performs GIS fusion. The platform provides effective and visible services such as multi-source monitoring data fusion, storage, management and transferring, supports geographic information demonstration and live broadcast, and is applicable to fields of monitoring on ecologic environment, geological disaster areas and other emergency accidents.

The invention relates to a nuclear magnetic resonance detection device and a nuclear magnetic resonance detection method for the advanced detection of a water bodies in the front. In the device, a computer is connected with a system controller, a high-power power supply and a signal acquisition unit by a serial port bus respectively; and the system controller is formed by connecting a bridge circuit driver, a high-power H-shaped transmitting bridge circuit, a resonant capacitor and a transmitting coil. Compared with the prior art, the device can detect important information such as the existence of water-bearing bodies in the front, the water content of the water-bearing bodies and the like accurately and effectively. The occupied area of the coil is reduced effectively by a mode of arranging the coil vertically, so that the device can perform exploration in narrow space. The device can detect the underground geological condition within a certain distance in the front directly and accurately in production fields of coal fields and mines or construction sites of tunnels so as to reduce mine accidents caused by geological disasters such as water burst, mud gushing and the like due to unclear geological conditions in the front or various incidents caused by the geological disasters in the process of tunnel construction.

The invention relates to the field of tunnel engineering construction, in particular to a control method of surrounding rocks in water-rich very-broken surrounding rock tunnel collapse sections. According to the control method, problems in the existing methods that managing circle is long, reinforcing range and effect are bad, secondary geological disasters are triggered easily because of deformation and cracking of exceeding clearance limit of preliminary bracing and the like are solved. The method includes the following steps: searching and analyzing factors leading to collapse and disaster degree, stabilizing exposed face of an accumulation body and dewatering and decompressing deep parts, strengthening supporting intensity in the collapse sections and influencing areas, outburst prevention filling and strengthening the collapse accumulation body, grouting reinforcing asymmetrical peripheral curtains, confirming an excavating method in grouting reinforcing collapse sections and primary supporting patterns, replenishing grouting in parts, excavating inverted arches, and constructing second liners. The control method of surrounding rocks in water-rich very-broken surrounding rock tunnel collapse sections has the advantages that collapse disposing construction period of water-rich very-broken surrounding rock tunnels is shortened, reinforcing range and intensity of the surrounding rocks are guaranteed, grouting reinforcement is fully conducted on the surrounding rocks in direct collapse areas, deformation in the preliminary bracing is relieved, occurrence of the exceeding clearance limit and the secondary geological disasters is avoided, disposing quality of collapse accidents is improved effectively, and good social benefit and economical benefit are created.

The invention relates to a mountainous area highway landslide risk evaluation model. The method is based on the theory of fuzzy mathematics, uses fuzzy comprehensive evaluation method, Delphi method, analytic hierarchy process and other methods to calculate the membership influencing hazard and vulnerability of highway side slope so as to obtain index evaluation level of hazard and vulnerability of slide slope risk, on the basis, adopts method of risk evaluation matrix to carry out risk evaluation of talus side slope. The model can predict, recognize, assess and analyze the slide slope risk of side slope that is possible to meet, and on the basis effectively cope with the risk to avoid or reduce the hazard of landslide geological disaster on national economy and life and property of people, and can take measures such as corresponding prevention and treatment on the basis of judgment and prediction of development and change trend of the landslide body.

The invention discloses a tripe gob filling repeated-mining method. The method comprises the following steps. A, a fire dam of a main tunnel of the stripe gob is opened to ventilate and discharge possible remained noxious gas. B, the tunnel of the strip gob is cleaned and a cracked roof is fastened and the cracked trail appears in the locality and stagnant is got rid of. C, paste filling materials are adopted to fill a empty stripe of the stripe gob in order to form a filling stripe1. D, after the filling stripe is reinforced, remained striped coal pillar in the stripe gob is stopped. E, a new gangue which is formed by stopping and adopted by the new empty stripe processes with non-cemented filling in order to form a filling stripe2. The strip gob is filled with the filling materials through the adoption of the paste filling method and the remained stripe coal pillar is stopped and the new empty stripe which is formed by stopping is dealt with the non-cemented filling by adopting the gangue. The method has the advantages of not only improving further recovery percent of the coal resources, but also eradicating hidden trouble of geological disaster in mining area caused by the instability of the strip coal pillar.

The invention relates to an emergency investigation method for a single geological disaster based on remote sensing of a small unmanned aerial vehicle. The technical steps include: customization of small UAV remote sensing system; indoor preparation; field operation; rapid processing; comprehensive processing. The purpose is to carry out fast and effective image control point layout and measurement based on slope characteristics, and at the same time use a small unmanned aerial vehicle remote sensing system to automatically collect photos of the slope, and generate the slope by introducing image control points in the process of digital photogrammetry. The high-precision and high-resolution remote sensing results are obtained, and then the slope deformation detection and calculation are carried out on the two-phase remote sensing results that have passed the precision inspection and high-precision registration, so as to obtain the overall deformation characteristics of the slope quickly, efficiently and accurately.

The invention discloses a rockburst grade predicting method based on an information vector machine to mainly solve the problem that in the current underground engineering construction process, the rockburst geological disaster prediction effect is not good. A rockburst evaluation index and a grading standard are selected, and domestic and overseas great deep rock engineering rockburst instances are widely collected to establish an abundant training sample library. A cross validation strategy is utilized for training an IVM model with the superior statistics mode recognition performance, accordingly, a nonlinear mapping relation between the rockburst evaluation index and the rockburst grade is established, model initial parameter setting and the training sample library are adjusted according to the training result, and the IVM model predicting the rockburst grade is finally established. By means of the method to predict the rockburst grade, the complex mechanical analysis or calculation is not needed, only the input feature vector of a sample to be predicted needs to be input in the prediction model, and then the prediction value of the rockburst grade can be obtained. The method is economical, efficient and high in prediction precision and has good engineering application prospects.

The invention discloses a geological disaster prediction system which comprises a data acquisition module, a geological environment space information monitoring module, a monitoring center, a predictive analysis module, an expert assessment module, a mathematic model building module, a holographic laser projection system, a virtual parameter actuation module, a virtual sensor and a simulation analysis module. Real-time and comprehensive monitoring of the geological environment is achieved, the geological condition can be shown in front of a worker through the holographic laser projection system, the worker can observe the geological changing condition personally on the scene, and reliable references are provided for treatment measure formulation; on the basis of Flac 3D numerical simulation, models corresponding to different monitoring data are calculated, the prediction analysis precision is improved, the obtained treatment measures can be subjected to simulation analysis, and therefore the specific treatment measures can be obtained; the ZigBee network topological structure is adopted, and therefore the multi-node and large-area monitoring requirement is met.

The invention discloses an experimental simulation device and a method for exploiting natural gas hydrate. The experimental simulation device comprises a stable pressure gas/liquid supply module, a reactor, a control module, a data measuring module and a data acquisition and processing module. The method comprises the following steps: discharging unreacted gases in an isobaric manner after the hydrate is generated, subsequently compressing the hydrate into a dense hydrate piece, introducing a CO2 gas from one side of the hydrate piece, reducing the pressure on the other side of the hydrate piece, and thus achieving combination of two natural gas hydrate exploitation methods of CO2 exchange and pressure reduction. The experimental simulation device overcomes the defects that the efficiency is low and the speed is low in natural gas hydrate exploitation in the CO2 exchange mode, overcomes the difficulty that geological disaster can be caused in natural gas hydrate exploitation in the pressure reduction mode, improves the efficacy in natural gas hydrate exploitation, and moreover is simple in structure and low in cost.

The invention discloses a non-contact spatial displacement measurement device. The non-contact spatial displacement measurement device comprises a laser range finder arranged on the reference point, an imaging transmitting plate arranged on the monitoring point, an image collection device arranged on the side, with the back to the laser range finder, of the imaging transmitting plate, a drive module and a control module. The imaging transmitting plate is used for receiving light emitted by the laser range finder and forming light spots. The image collection device is used for collecting the light spots formed on the imaging transmitting plate and connected with the drive module, and the drive module is connected with the control module. The non-contact spatial displacement measurement device is large in measuring range, high in measurement accuracy, small in power consumption and capable of measuring prostration and hypsokinesis from front to back and forward and reverse rotation deformation, relative to a laser device, of a position sensor, solves the problems in the prior art and can be widely used for monitoring deformation of engineering buildings under the condition of geological disasters, and the measuring range is convenient to adjust.

The invention provides geological disaster monitoring system and method belonging to the technical field of monitoring of geological disasters. The geological disaster monitoring system comprises at least one signal acquisition unit and a background monitoring center, wherein the signal acquisition unit is used for acquiring field geological variation signals, converting the geological variation signals into digital signals and then transmitting the digital signals; the background monitoring center is connected with the signal acquisition unit and used for receiving the converted geological variation signals transmitted by the signal acquisition unit, calculating according to the geological variation signals to obtain the horizontal displacement and/or the subsidence displacement of a field earth surface and then displaying the horizontal displacement and/or the subsidence displacement. Thus the invention realizes the real-time monitoring of geological cracks and/or geological subsidence of a monitored field, also saves the manpower and material resources and is especially suitable for a transformer substation which has higher requirements for geological conditions.

A mountain geological disaster monitoring and prewarning system based on digital twin driving comprises data acquisition sensors arranged on a physical layer, a DT monitoring module, a DT prediction module and a DT prewarning module arranged on an information layer, and clients on a visualization layer. A monitoring and prewarning method comprises the following steps: Step 1, investigation is carried out on a geological environment, and a monitoring plan is obtained for focused monitoring on a current area; Step 2, real-time data is obtained according to the monitoring plan obtained in Step 1,and historical geological disaster data are all stored in a geological disaster digital twin database and analyzed in the DT prediction module; Step 3, BP neural network analysis is carried out in the DT prediction module based on the historical geological disaster data to obtain a geological disaster prediction model; and Step 4, the monitoring data obtained in Step 2 is stored in the geologicaldisaster twin database to obtain prediction results, and the prediction results are sent to the clients for visualization. The system and method provided by the invention has the characteristics thatthe personal safety of residents, tourists and the like can be protected, and economic losses can be reduced.

The invention discloses a non-contact automatic displacement monitoring device and particularly relates to a non-contact automatic displacement monitoring device for deformation of the existing projects under the conditions of geological disasters. The non-contact automatic displacement monitoring device comprises a light source emitting device, a position sensor, a data acquisition and output module, a wireless receiving module, a solar power supply system and a computer system. The non-contact automatic displacement monitoring device is low in cost, can achieve automated monitoring of a monitored field piece which is in unattended operation for a long time, reduces labor intensity of engineering personnel and promotes monitoring accuracy.

The invention discloses a detection and treatment method of the karst water in a tunnel. The detection and treatment method of the karst water in the tunnel includes the following steps of a, detection of karst, specifically, before construction of the tunnel, the surrounding rock geological disaster condition in front of the tunnel face is understood so as to determine the location, scale and size of the karst; b, grouting construction with a large pipe shed; and c, grouting construction with a small pipe or a curtain. By adoption of the treatment principle of main blocking and combination of draining and blocking, a basic thought of the treatment technology of the karst water in the tunnel is determined. By detecting the specific location of the karst water and water yield, and taking measures of guiding and draining part of the karst water timely, security of operating personnel and equipment can be guaranteed; on the basis of analysis of the karst water and guiding and draining part of the karst water, full-face pre-grouting of the tunnel is conducted so as to block a passage of the karst water and guarantee security of tunnel construction. The detection and treatment method of the karst water in the tunnel is extremely suitable for treatment construction of the karst water in the tunnel, and meanwhile, has the reference significances for construction of highways, municipal works and water conservancy tunnels under similar geological conditions.

In order to promote relevant scientific researches on fracture of an incompact soil body and effectively prevent and control geological disasters, such as incompact soil body landslide, soil slope, slope debris flow and the like, the invention provides a method and a system for testing the fracture toughness of the incompact soil body. The method comprises the following steps of: making the incompact soil body with different water content and different compactness into a rectangular test piece; continuously loading a three-point bending load on the rectangular test piece; and when the rectangular test piece starts to fracture, measuring the fracture toughness of the incompact soil body. According to the method and the system for testing the fracture toughness of the incompact soil body, the fracture toughness of the incompact soil body with different water content and different compactness can be tested; according to the test method, a requirement of the American society for testing material (ASTM) E399-83 is met; the deformation, cracking and damage system of the surface of a soil slope can be analyzed; and the method and the system have great significance for promoting relevant scientific researches on the fracture of the incompact soil body and effectively preventing and controlling geological disasters, such as incompact soil body landslide, soil slope, slope debris flow and the like.

The invention discloses a geological disaster predication system which comprises a sensor module, an infrared camera, a data transmission module, a monitoring center, a data processing module, an expert assessment module, a 3D effect generation module, a display screen and a man-machine operation module. The system can accurately predict the time and geological range of a geological disaster, the geological state can be presented for a worker via the 3D generation module, so that the worker can observe and sense geological change, and the prediction accuracy is further improved.

The invention relates to a reverse production method for a seafloor gas hydrate stable layer. The reverse production method comprises the following steps of S1, pressure-drop gas production: firstly, sucking out liquid in a production well, dropping the pressure at the bottom of the well, producing free gas under the hydrate stable layer, and decomposing the lower surface of the hydrate stable layer; S2, heat-injection decomposing: injecting hot water or steam into the upper part of a production layer, decomposing the gas hydrate stable layer from bottom to top, and producing from the production well after decomposing; S3, cementing of carbon dioxide: injecting the carbon dioxide into the lower part of the production layer, and gradually cementing at the bottom part of the production layer from bottom to top; S4, after the cementing is completed, repeating the steps S1, S2 and S3, cycling to produce, and stopping production until the natural gas hydrate stable layer is thinned to the proper thickness. The reverse production method has the advantage that the problems of easy leakage of natural gas, easy pollution to sea environment, and easy occurrence of geological disasters in the production process of seafloor natural gas hydrates are solved.

The invention discloses an integrated monitoring and early warning system for a geological mountain torrent disaster and a realization method thereof. The system comprises an early warning platform and at least one wireless sensor network. The wireless sensor network consists of an intelligent gateway and a plurality of monitoring piles; and the monitoring piles include a flood monitoring pile that is used for monitoring a water flood level alarming grade and an inclination angle of the pile body and a vibration monitoring pile that is used for monitoring an acceleration and an inclination angle due to an impact on the pile body. And the monitoring piles also have field warning functions. The data of the monitoring piles are sent to the early warning platform by the intelligent gateway; and the early warning platform displays the monitoring data information on a GIS information map in real time and displays the information in real time for early warning for the public in a web mode. According to the invention, after the functions are localized at the system network, the economics of scale due to data collection are obtained rapidly. Therefore, a novel technical scheme is provided for monitoring and early warning of the geological disasters.

The invention discloses a simulated test unit and method for slope stability with faulting, relating to the technique of rock-soil mechanical test. The test unit is characterized in that: a soil sample in a fault soil model instrument is divided into hanging wall and footwall by the fault surface; a first continuously variable transmission (CVT), a first power transmission system, and a supporting leverage are connected with the hanging wall successively and provide power for displacement to the hanging wall; a second CVT and a second power transmission system are connected with the footwall successively and provide power for displacement to the footwall; a displacement mark, a soil pressure box and a dial indicator are put in the soil sample, and the relative data are recorded. Accordingto the invention, the movement processes of transformation and damage of slope containing fault soil are represented accurately, so that the invention provides a new approach for studying formation mechanism of landslip and other geological disasters under complex geological environmental conditions.

The invention discloses a grouting integrated controlling method for an underground engineering top weakly cemented rock mass permeation damage region. The grouting integrated controlling method for the underground engineering top weakly cemented rock mass permeation damage region comprises the following steps that means of geological analysis and geophysical exploration are utilized jointly, and hydrogeological conditions of a treated region are ascertained; supporting reinforcement is conducted on a permeation instable damaged section and an affected region; treatment schemes of water releasing and pressure reducing layered grouting are designed; water releasing and pressure reducing drilling construction and layered grouting engineering are implemented and regulated dynamically; water releasing and pressure reducing holes are blocked in flowing water with high pressure and large volume; and monitoring for surrounding rock deformation is enhanced. After the grouting integrated controlling method for the underground engineering top weakly cemented rock mass permeation damage region is adopted for construction, weakly cemented rock mass reinforcement and blocking of water surge with high pressure and large volume are implemented in different levels and stages, the different problems that treatment engineering is long in period and secondary geological disasters are prone to trigger are effectively solved, grouting efficiency is improved, and good social and economic benefits are created.

The invention discloses a mountain road slope real-time monitoring and early warning device, and relates to the field of geological disaster detection. The mountain road slope real-time monitoring and early warning device comprises a wireless sensor node, a central calculation node and a changeable traffic indication system. The wireless sensor node acquires vibration, inclined angle change and deformation parameter information on a slope in real time, and sends data to the central calculation node through a Zigbee wireless transmission module. The central calculation node collects and stores data from each sensor node, performs infusion fusing process, analyzes the slope stability condition automatically and makes real-time early warning for disasters. The central calculation node can send a command to a changeable traffic indication board for displaying the early warning information through the Zigbee wireless transmission module, meanwhile informs relevant departments and relevant personnel through a GPRS (General Packet Radio Service) network, and issues the early warning information on the Internet. The mountain road slope real-time monitoring and early warning device is simple in structure, flexible in layout, convenient and practical, can be used for real-time monitoring and early warning of the slope state, and can efficiently reduce loss of life and property caused by slope geological disasters.