57 results about "Geohazard" patented technology

The invention relates to a submarine landslide evolution process simulating system and experimental method based on transparent soil and a rotating water tank, and belongs to the technical fields of marine geological disasters and geotechnical engineering experiments. The simulating system comprises a rotating water tank system, a transparent soil simulating system and a control and data collection system. The rotating water tank system sets different speeds for a sample by means of a control motor, and a closed circular ring structure of a U-shaped section rotary drum groove satisfies that the sliding distance is not limited; the transparent soil simulating system prepares a transparent sample, with a tracer coloring agent, and fluid environment whose physical mechanical property is the same with that of a real submarine soil layer, so that the internal, external and water-soil interface is visualized in a 3D way in the whole sample evolution process; and the control and data collection system realizes quantitative monitoring and data extraction of the evolution process by means of 3D laser slicing and digital image collection. The provided system is controllable in the scale, visualized in the evolution process, capable of measuring image data, and can solve the problems that a long-distance evolution experiment is hard to carry out, data acquisition is difficult, and a monitoring picture is not clear.

An urban slope geologic disaster risk evaluation visual display method includes following steps: step 1, picking out all slopes probably causing geologic disasters in a target area, wherein the geologic disasters refer to serious damage caused to disaster-stricken objects by geologic motion; step 2, evaluating slope danger grade of each slope, and evaluating grade of damage caused to disaster-stricken objects probably existing around each slope when the slope is in geologic motion; step 3, determining risk grade in a danger and damage matrix according to the sum of the danger grade and the damage grade which are acquired by evaluation; step 4, marking and showing each slope with the risk grade determined on a geologic information map. Through a carrier of a geologic disaster risk evaluation visual product, risk of slopes in front and rear of own houses can be known clearly and visually; multiple risk factors are taken into consideration for comprehensive evaluation, so that risk and possible damage of landslide within jurisdiction are known comprehensively and accurately.

The invention discloses a method for explaining active fault moving strength and growing directions through an artificial earthquake. The method comprises the steps that firstly, active fault growing tendencies are determined; secondly, active fault moving strength is determined. According to the method, characteristics and laws of an active fault can be found, changes of the characteristics and laws of the active fault can be predicted, and the method has importance significance in reducing geological disasters caused by the active fault and guaranteeing long-term living and development of human beings; in terms of research on moving relationships between earthquakes and modern constructions, the method can promote development of seismology and improve earthquake prediction scientificity; because the active fault has close relationships with coal mine safety production, the method can be adopted to explore extension and distribution characteristics of the active fault, prevent shafts and roadways from being built on an active fault zone and provide reliable geological evidence to coal mine construction.

The invention mainly relates to the technical field of landslide monitoring. The invention discloses a projection type landslide monitoring device. The device mainly comprises a nose cone, a reducingcoupling cavity, a load cabin and empennages, wherein the top end of the nose cone is of a conical structure, the bottom end is coupled with a reducing port of the reducing coupling cavity, the inneris hollow, the load cabin is arranged at the other end of the reducing coupling cavity, the empennages are arranged on the left and right sides of the load cabin respectively, an infrasound sensor, adata acquisition module, a communication module and a lithium battery are arranged in the load cabin, the lithium battery is used for supplying power, the infrasound sensor monitors the sound wave, the data acquisition module acquires infrasonic wave signals, the acquired infrasonic wave signals are transmitted to the central server through the communication module. The unmanned aerial vehicle isused for carrying the projection type landslide monitoring device, so that an operator can work far away from a geological disaster site, the safety problem of the operator is solved, meanwhile, the projection type landslide monitoring device can be deployed in a short time, and the timeliness of geological disaster monitoring is improved.

The invention discloses a physical model for longitudinal-penetration landslide geological disasters of oil and gas pipelines and an experimental method. The physical model comprises five parts including an experimental model main body structure, a rainfall mechanism, an observation mechanism, a pipeline mechanism and a bearing mechanism. By virtue of the efficient cooperation among the experimental model main body structure, the rainfall mechanism, the observation mechanism and the pipeline mechanism, the landslide state of a landslide mass is influenced by changing the rainfall degree, and then the damage condition of the landslide mass on pipelines at different states is simulated, so that the damage law of the oil and gas pipelines which are distributed in a longitudinal penetration manner is obtained, and the powerful support is provided for the selection of field protection measures of the oil and gas pipelines.

The invention relates to a method for jointly treating an open pit through waste rocks and dry tailings, and belongs to the field of mine open pit backfilling treatment. The method comprises the steps that the bottom of the open pit is backfilled with a waste rock layer 2, dry tailings obtained after dehydration and filter pressing are conveyed to the waste rock layer 2 and are compacted to form a dry tailings layer 3, and the waste rock layer 2 and the dry tailings layer 3 are stacked alternately; an initial dam 4 is laid on the stacking layer of the waste rock layer 2 and the dry tailing layer 3, and dry tailing piles 3'are stacked on the upstream of the initial dam 4 in a layered mode in an inverted mode; a waste rock heap 10 is stacked on the periphery of the dry tailing heap 3'stacked in the middle layer in an inverted mode till the top face of the waste rock heap 10 is bordered with the top face of the dry tailing heap 3 '; a drainage prism 5 is laid on the periphery of the waste rock pile 10; and an inverted filter layer 6 is constructed between the waste rock heap 10 and the drainage prism body 5. The risk of landslide, debris flow and other secondary geological disasters caused by instability of the open-air side slope can be reduced, safety accidents caused by tailing leakage and dam break can be avoided, and safe stockpiling of the waste rocks and the tailings is achieved.

The invention relates to a novel retaining wall for inhibiting the development of a landslide and a construction method, and belongs to the field of landslide geological disaster prevention and control. A composite foundation is designed, the lower end surface of the composite foundation is in a stepped shape, and the composite foundation is paved under the water seepage retaining wall; a wall body of the water seepage retaining wall is hollow, and one side of the wall body is provided with a water seepage gap; anchoring is reinforced, anchors are connected with the water seepage retaining wall, wherein each automatic anchor is provided with an automatic installation system consisting of a PID controller, a frequency converter, an electric control valve and the like, and a threaded anchorpile pulling device can provide strong overturning resistance torque for the retaining wall; a rock-soil collision prevention device is provided with a two-stage buffer structure and is arranged on the top of the water seepage retaining wall; a high-load slide-resistant pile is provided with a load plate and a bottom block and is fixed on one side of the composite foundation; and a drainage systemis provided with a rainwater intercepting and discharging device and a water collecting pipeline so as to reduce the water content of a landslide body and slow down the development of the landslide body. The retaining wall has a plurality of functions of overturning prevention, subsidence prevention, rock-soil collision prevention, rainwater interception and drainage, landslide development inhibition and the like.

The invention relates to the field of karst region soil cave collapse geological disasters, in particular to a karst soil cave exploring and positioning method. The method comprises the following steps that firstly, a working area required to be subjected to collapse exploring is selected; a spraying route is delimited for the selected area, and foaming agents are evenly sprayed till the content of the foaming agents in the earth surface covering layer soil body reaches the designed concentration; then whether bubbles are continuously generated on the earth surface or not are observed after raining, bubble generation points are marked, namely possible development positions of the karst soil cave, and finally the bubble generation points and adjacent areas are detected in detail by adoptinga conventional drilling or geophysical prospecting method to determine detailed characteristics of the soil cave. According to the technical scheme, the karst soil cave exploring and positioning method can achieve large-area, low-cost, easy-to-operate and accurate detection of the specific development position of the underground karst soil cave, can remarkably reduce the detection target area ofthe karst soil cave, and effectively solves the bottleneck problem of restricting the position of the soil cave in karst collapse monitoring and prevention at present.

The invention discloses a distributed medium and small watershed geological disaster and flood early warning method based on critical rainfall, an information acquisition terminal, an urban area datadivision part, an image information acquisition center and a receiving terminal are arranged internally, and the output terminal of the information acquisition terminal is connected with the input terminal of the urban area data division part. According to the distributed medium and small watershed geological disaster and flood early warning method based on the critical rainfall, the river water flow can be accurately located on a geographic area and a river branch, positioning accuracy during early warning is facilitated; meanwhile, when river flood information is collected, three terminal detection devices are utilized. A rain collector, a water level height sensor and a monitor are arranged; on one hand, the rain collector can accurately measure the rainfall within the timing duration,and on the other hand, the water level height sensor can clearly measure the water line in the river.

The invention discloses a strip mine distributed water resource storage and utilization system and an implementation method thereof. The implementation method comprises the following steps: S10, a contour map and a stratigraphic histogram of a mining area and surrounding terrain are obtained; S20, water storage area parameters of the distributed water resource storage and utilization system are planned, and a geomorphic contour line is remodeled; S30, a part of storage and utilization systems are built in the internal drainage operation period of the strip mine, so that resource utilization of part of mine gushing water and rainfall is achieved; and S40, construction of the distributed water resource storage and utilization system is completed during the pit closing period of the strip mine. According to the method, mine gushing water in the open-pit mine production period in the water-deficient area is effectively stored and converted into production water and greening water in time; after a pit is closed, rainwater is stored and called through the height difference between distributed water storage areas and the height difference between the water storage areas and a reclamation area. The volume of a water storage area is used for counteracting the volume of produced resources, so that the elevation of an area reconstructed by internal drainage operation is close to that of an original landform, and geological disasters such as landslide and debris flow are avoided.