1717 results about "Underground space" patented technology

The invention discloses an underground space high-precision positioning method based on laser scanning and sequence encoded graphics. Aiming at the rapid high-precision positioning, orientation, altitude determination and navigation of moving targets in a GPS signal-free underground well of a mine, the method can make the breakthrough in key directions from the design, decoding and optimized layout of the encoded graphics, the economical and rapid acquisition of a fine and accurate road network-a three-dimensional well network space model consisting of underground tunnels of mine, a high-precision positioning algorithm of the moving targets in well restraint spaces (precise resolving of position, direction, altitude parameters), a three-dimensional well network space matching algorithm, athree-dimensional navigation technology to a final navigation platform and terminal control system, and the like, thus key technologies for underground rapid high-precision positioning and navigationas well as software and hardware systems are formed to eventually achieve the leaping-development of a underground unmanned mining technology for the mine in our country. Besides, the method disclosed in the invention can also meet the application demands of large urban underground space, deep and long traffic tunnel, large grotto, large building interior, large overpass and subway space on the rapid high-precision positioning and navigation of the moving targets, thereby pushing forward the development of the underground space positioning technology in our country.

The invention discloses a 3D automatic modeling and scheduling rendering method for an integrated pipe network, and relates to the technical field of 3D model building. The method comprises the following steps: data reading; layer creating; cutting scheduling; automatic pipeline modeling; automatic pipe point modeling; and automatic pipe network building. The technical problems, such as 2D-3D integrated management based on underground pipe network data in geographic information, spatial data organizing and rendering, and automatic 3D pipe network building according to 2D data, can be solved effectively. The access efficiency to pipe network information in a 3D scene is improved. The level of unified display, management and analysis of multiple underground pipe network systems having different attributes is improved. An important basis is provided for the acquisition and construction scheme of underground pipe network spatial information in urban construction, especially in smart city building in the future. The rapid development of urban construction leads to large-scale development and utilization of urban underground space resources.

The invention discloses a three-dimensional similarity simulation test method including the steps: A, test-piece preparation; B, loading; and C, excavation and observation. By the method, complex distribution phenomena of coal bed stress in different roof movement phases during underground excavation can be simulated, and large-inclination-angle ore bed test pieces can be manufactured more conveniently and effectively, so that rock masses can be guaranteed to be under the three-directional stress condition in the whole excavation process, underground space excavation under more working conditions can be studied, the height on the earth surface of a whole system is decreased, construction cost is lower, and the system is more stable.

The invention relates to a building method for underground space structure with existing building and common land, and the equipment. By said method and equipment, the development for underground space with existing building and common land is realized safely, quickly, economically at a large scale.

A construction method for a precast energy pile is characterized in that a heat transfer tube is embedded into a hollow steel tube, the hollow steel tube replaces a traditional solid reinforcement and serves as a main reinforce ement of the precast pile, and for being connected with the heat transfer pipe in the precast pile, a heat transfer elbow and a heat transfer tube joint are embedded into a precast pile shoe and a precast pile cap. As the heat transfer tube is embedded into the hollow steel tube, the technical problems of mutual interference, poor concrete compactness, reinforcement corrosion, effect on the overall bearing capacity of a pile foundation and the like caused by binding and embedding of the heat transfer tube and the main reinforcement are effectively solved. Moreover, the embedded tube is higher in survival rate, a large number of piles are conveniently stacked and safely transported, construction period is short, and underground space and construction cost are saved.

The invention discloses a three-way load large-scale three-dimensional analog simulation test system. The system comprises a test piece box and a counter-force system. The test piece box can change into different sizes through the flexible arrangement of a screw hole belt, different testing requirements are met, and the counter-force system comprises a concrete counter-force pool which is located under the ground and a counter-force which is fixed with the counter-force pool. According to the system, complex distribution phenomena of coal seam stress in different moving stages of top plates during underground mining can be simulated, the method is convenient to produce high inclination-angle ledge test pieces, the effect is good, during the overall mining process, rock mass exists under the condition of three-dimensional stress, underground space excavation under multiple working conditions can be studied, the height of the whole system above the ground surface is reduced, the construction cost is low, and the system is stable.

The invention discloses a construction method for embedding a pipe in a ground source heat pump pouring pile reinforcement cage. A steel pipe is used for substituting for a solid reinforcing steel bar as the main rib of a pouring pile reinforcement cage, and a heat transmission pipe is embedded in the steel pipe, as a result, problems caused by binding and embedding the heat transmission pipe and the reinforcement cage, including mutual interference, high probability of corrosion of a reinforcing steel bar, effect on overall bearing capacity of a pile foundation and the like, are solved. Compared with the traditional way of binding and embedding the heat transmission pipe and the reinforcement cage, the construction method is higher in survival rate of embedded pipe, compactedness of concrete is high, and embedment of the heat transmission pipe surely does not lower the overall bearing capacity of the pile foundation; compared with another traditional way of drilling and pipe embedding, the construction method greatly shortens construction period and saves underground space and engineering cost. The construction method is simple in construction process, strong in operability, convenient for quality control, and remarkable in economic benefit and heat transmission effect.

Provided are a method and a device for tunnel advance geology forecast with tunnel face blasting as a focus. The method comprises the steps of (1) drilling holes on two lateral walls at the inlet position in a tunnel; (2) filling a coupling agent into the drilled holes, and attaching weave detectors to the walls of the drilled holes; (3) winding a trigger circuit copper wire on cartridged explosive, and placing the cartridged explosive into a blasted hole of the tunnel face; (4), enabling two three-component weave detectors buried in a tunnel hole to receive reflective earthquake wave signals; (5) sending the signals to an amplifier after the signals are selected by a multi-way switch; (6) enabling the amplifier to amplify the signals and then transmit the signals to an analog/digital (A/D) converter through wireless transmission; (7) enabling a wireless communication module of a control chamber to receive a wireless signal and then transmit the wireless signal to a host, and recording the signal; and (8) achieving geology forecast through an processing program installed in the host. The device comprises signal acquisition, wireless communication and control and a data analyzing system. The method is simple, easy and low in cost, can be used for advance geology forecast of tunnels, holes and roadway underground spaces, and achieves automation and normalization of geology forecast.

The invention discloses a model box applied to a large stereoscopic synthesis simulation test bench in geotechnical engineering, wherein four sides of the model box are spliced by a plurality of horizontal loading plates; the top of the model box is formed by splicing a plurality of vertical loading plates; each horizontal loading plate is connected with a horizontal loading actuator through a spheroid joint; each horizontal loading actuator is fixedly connected with a reaction wall through connection bolts; each vertical loading plate is connected with a vertical loading actuator through a spheroid joint; each vertical loading actuator is fixedly connected with a reaction beam; sealing joint strips are embedded between the side surfaces of the adjacent horizontal loading plates. The model box disclosed by the invention can be applied to a simulation test of soil engineering with different functions, such as underground space and excavation simulation tests, foundation and slope engineering simulation tests under the condition of rain and underground water level variation, dynamic response tests of pile foundations and soil around the pile foundations, segment simulation tests, and structure part performance tests; simultaneously, due to the adoption of the model box, the true three-dimensional loading of a large-sized physical model is realized.

The invention discloses a pre-cured alkali-activated inorganic coating material, which is applied to the repair and protection of outside surfaces of underground spaces and buildings, and particularly applicable to the surface repair and protection of exterior walls, basements, water conservancy projects, tunnels, bridges, highways, docks and pools. According to the invention, through a pre-curing process, the alkali-activated coating material is more convenient to use, and pre-cured more fully; and the pre-curing process refers to a step-by-step curing process, and in the first curing, an alkali-activator is not completely put, so that the pre-curing is performed at low alkalinity, therefore, the pre-curing can be gradually performed in two steps or multiple steps.

The invention discloses a method for intelligently detecting, early warning and forecasting a fire in an underground space and a device using the method comprising a fire signal detector, an analog-to-digital converter, a data manager, a monitor, a CCD camera, a signal transfer device, a fire alarm control unit, a digital-to-analog converter, a warning device and an underground space ventilation and heat exchange measuring device, wherein the fire signal detector transfers a detected signal to the data manager via the analog-to-digital converter, the information is processed by the data manager and is transferred to the fire alarm control unit via the signal transfer device, and is transferred to the warning device via the digital-to-analog converter, and the data manager processes the information and displays the processed information on the monitor; the CCD camera is connected with the monitor; the underground space ventilation and heat exchange measuring device transfers the information to the data manager. The method and the device adopt a plurality of fire detectors to detect a fire so as to improve an accuracy of a system, return a forecasted result to the system, and use a self-learning capability of a support vector machine to realize high fault tolerance and intellectualization of the system.

The invention belongs to the technical field of foundation pit supporting for high-rise buildings, in particular to a foundation pit support construction method combining horizontal rotary jet-grouting soil bolting and bore concrete piles, which includes steps: firstly, constructing water-stop mixed piles and bored concrete piles according to a preset foundation pit; and secondly, performing soil excavation and soil bolting layer by layer and section by section. The foundation pit support construction method has the advantages that the foundation pit support constructed by the method is high in deformation control performance and stability and especially applicable to projections with high requirements on foundation pit deformation, and the method is applicable to mega-area foundation pit supporting in soft soil areas with failure of using internal support structures, limited slope reduction conditions and excavation depth limited within 15m, and meets the requirement that development and utilization of urban underground space continue to develop.

The invention relates to a highly dense alkali-activated coating material which is used for repairing and protecting underground spaces and outer spaces of buildings, particularly surface repairing and protection of exterior walls, basements, water conservancy projects, tunnels, bridges, roads, yards and water pools, and belongs to the field of building materials. The highly dense alkali-activated coating material specifically comprises the following components in parts by weight: 2-80 parts of an alkali-activator, 20-120 parts of a gelatinized base material, 2-250 parts of sheet aggregates, 0-20 parts of a water repellent, 0-20 parts of a colorant, 0-80 pars of an expanding agent, 0-200 parts of filler and 0-50 parts of auxiliaries.

The invention provides a kind of underground digging and adding floor construction method. It makes use of the underground space as construction field, and makes the roof of present structure as natural cover board, so it divides the whole underground structure into several building sections to underground dig step by step and complete the floor addition of the underground structure. It don't need to dig widely, won't affect the normal ground traffic, and don't need to move pipelines. The project is small and can save investment. It's especially adopted to building underground to add floor in the center of the city. It's suitable for underground digging to rebuild the one floor cellar into two floor underground structure.

The invention discloses a prefabricated hexagonal energy pile and a manufacturing method of the prefabricated hexagonal energy pile. Solid steel bars are used as pre-stressed main reinforcements of the prefabricated pile, hollow steel pipes are used as constructional main reinforcements of the prefabricated pile, and heat transfer pipes are embedded in the hollow steel pipes; the exterior of a pile body where the heat transfer pipes are embedded is in the shape of a hexagon, and the interior of the pile body where the heat transfer pipes are embedded is in the shape of a circle; the heat transfer pipes are connected by heat transfer elbows to form U-shaped loops at the bottom of the prefabricated pile; the heat transfer pipes are arranged at sharp corner positions where the wall thickness is large, namely, the six corners of the hexagon. The heat transfer pipes are embedded in the hollow steel pipes, and therefore the technical problems of mutual interference, poor concrete compactness, reinforcement corrosion, influences on the overall bearing capacity of a pile foundation and the like caused by binding and embedding of the heat transfer pipes and the main reinforcements are effectively solved; besides, the survival rate of the embedded pipes is higher, a large number of pile bodies can be conveniently stacked and safely transported, a construction period is short, underground space is saved, and construction cost is lowered.

The invention relates to a construction method for compound construction of a large-scale underground space structure by holes, a groove and piles. The method comprises the following steps of: firstly building two or more than two pilot holes through an undercutting method or a shield method and other methods; then constructing support piles in the pilot holes, constructing a top groove in a construction vertical well, and constructing top longitudinal beams of the support piles in the pilot holes; completing the construction of a main reinforced concrete structure at the top to enable the support piles, the top longitudinal beams and the main reinforced concrete structure to form a whole; and then excavating oil among the pilot holes by adopting a shallow burying and undercutting method, and constructing an intermediate layer, the main reinforced concrete structure at the bottom and a sidewall once to form an integral underground space structure. The underground space structure constructed by the method disclosed by the invention has the advantages of clear stress, safety and high speed in construction, low engineering cost and higher effectiveness. The method disclosed by the invention can be used for constructing single-layer single-span, single-layer multi-span, multi-layer single-span, multi-layer multi-space and other underground space structures, and is particularly suitable for constructing underground large-span space structures.

The invention relates to an underground space autonomous positioning multi-sensor intelligent detection robot. The detection robot includes a robot carrier platform, a cable rolling wheel, a main control box, a rear camera which is arranged on the carrier platform, a robot arm, an instrument cabin, a sampling basket, a battery pack, a front camera and the like; the robot carrier platform and the main control box are connected through a power supply and communication cable for realizing a power supply function and a communication function; the detection data of the instrument cabin are transmitted to the main control box through the power supply and communication cable; a main cable rolling wheel provides mileage information in real time; and a uniaxial fiber optic gyroscope, a biaxial inclinometer and a triaxial accelerometer which are mounted on the robot carrier platform, together with the mileage information provided by the main cable rolling wheel, realize the autonomous positioning of the robot. The detection robot can go to underground space to detect such properties as the location, spatial information and living environment of the underground space and can obtain the 3D model of underground space; and the robot is adaptive to complex road conditions and has a certain waterproof function.

The invention relates to an intelligentized rail transit system which collects information by a road section sensor, transfers road condition information by a wireless network, and controls a vehicle to run by a vehicle-mounted device. The rail transit system consists of a track, a turning island, a station, a minitype electric vehicle, an area control station, a master control center and an intelligent traffic management system on a road section of a closed road. Vehicle running is controlled by a vehicle-mounted computer by depending on information send by a nearby road section through the area control station. The system has the advantages of being free from conflict with the current rail transit system, sufficiently utilizing ground, overground and underground spaces, being as comfortable and fast as cars, having large capacity, generating no waste gas, having light environmental pollution, being high in station intensity, having no needing of transfer, realizing automatic driving and the like, and is suitable for going-out of persons in cities, areas with dense population, scenery spots, stations, airports, wharfs and the like.

The invention discloses a distributed using method for mine underground water. The method comprises the following steps of: A, exploring the underground space of a mining area to obtain the basic geological data of a stratum; B, observing well underground water to obtain the flow field distribution situation, water quality data and water pressure data of underground water; C, determining one or more goaf spaces through which underground water cannot pass after coal mining as water storing space(s) of a distributed underground water reservoir according to the obtained basic geological data of the stratum as well as flow field distribution situation condition, water quality data and water pressure data of underground water; D, when a determined water-storing space is formed, enabling underground water generated during coal mining of an adjacent working surface to permeate into the water-storing space naturally; and E, pumping underground water onto the ground surface for using through a water pumping hole which is communicated to the ground surface in each water-storing space when water is required, and refilling external water into the water-storing space when stored water is required to be increased. Due to the adoption of the method, the loss of underground water and the influences on the growth and recovery of the ecological environment can be reduced.

The invention relates to a method for constructing an underground space by a shield-shallow buried covered excavation composite method, and belongs to the technical field of construction methods of the underground space. The construction method comprises the following steps of: constructing two or more shield tunnels in advance by a shield method; and excavating a soil body between the shield tunnels by a shallow buried covered excavation method. By the method, the construction of the underground space with a large cross section is safe and high-efficiency, a structure is definitely stressed, construction speed is high and construction cost is low. The method can be used for constructing large-scale underground spaces in various forms.

A grain deposit for cold storage of grains features that it is an underground building, and is a composed of blower, wind channel, cold-air blower, refrigerator, refrigerating chamber, air return channel, grains inlet, cold storage, upper and lower conveyers, transition storage, grain deposit and underground space. Its advantages are not ageing grains, high antistaling effect, not mildewing, and high effect on preventing pests and mouse.

The invention relates to an underground bicycle garage. The underground bicycle garage comprises a splicing type supporting unit and a central conveying unit, wherein the splicing type supporting unit comprises a cage shaped barrel body, and a plurality of bicycle storing rack layers which are circumferentially arranged at positions, toward an axis, on the inner wall of the cage-shaped barrel body; the central conveying unit, comprising a rotating guide rail, a synchronous belt type lifting mechanism, a shaft supporting type rotating mechanism and a conveying platform, is mounted at the axis position of the splicing type supporting unit; the rotating guide rail, the synchronous belt type lifting mechanism, the shaft supporting type rotating mechanism and the conveying platform are arranged in parallel; the synchronous belt type lifting mechanism is arranged on the rotating guide rail; the conveying platform is driven by the synchronous belt type lifting mechanism to lift along with the rotating guide rail; the shaft supporting type rotating mechanism is arranged at the bottom part of the rotating guide rail; the rotating guide rail and the conveying platform are driven by the shaft supporting type rotating mechanism to horizontally rotate; an efficient grasping and pushing mechanism is arranged on the conveying platform. The underground bicycle garage can grasp, lift, rotate and push a bicycle; a plurality of bicycles can be stored, so that the underground space can be saved. The underground bicycle garage is reasonable in structure, high in safety, and stable and efficient in running.

The invention discloses a method for constructing a subway station by enlarging and digging a shield tunnel by adopting a mining method. The method comprises the following steps of: (1) firstly advancing a platform layer tunnel passing through a station by adopting a shield machine; (2) excavating a vertical well to elevation of the platform layer tunnel of the station at one end of the station; (3) constructing along with a tunnel vault and manufacturing a pipe shed, perforating by adopting a large pipe shed advance support and grouting; (4) constructing along with the tunnel vault and manufacturing a sleeve valve pipe, and grouting for complementing and reinforcing; (5) enlarging and digging in the platform layer tunnel by adopting the mining method; (6) dismounting and recovering pipe pieces; and (7) constructing and manufacturing a concrete structure comprising a secondary lining, a platform plate and a rail head wind channel. In the invention, the shield machine participates in construction of the subway station, a cave is firstly excavated, then an underground station is enlarged, excavated and constructed by adopting the mining method, respective advantages of the shield machine and the mining method are fully played, and waste of equipment and underground space resource caused by a special large-diameter shield machine is avoided.

The invention provides a pervious material as well as a preparation method and an application thereof. The pervious material is mainly prepared from a coarse aggregate, an adhesive material, a water purification functional material, and water. As being influenced by a natural shape of the coarse aggregate, the interior of the pervious material is provided with multiple gaps with a high porosity, the gaps can allow a water body to pass through, and the water body can be filtered by virtue of the water purification functional material. The pervious material provided by the invention has high compression strength and breaking strength, has functions of storage regulating permeation and storage regulating purification at the same time, and can be used for constructing various underground spaces for purifying and storing dispersed rainwater by virtue of a simple way of building blocks. The preparation method of the pervious material provided by the invention is simple in process and low in cost, and is suitable for large-scale production. The pervious material provided by the invention has the functions of storage regulating permeation and storage regulating purification at the same time, can be used for constructing various underground water purification devices and underground reservoirs, and can also be used for constructing debris flow protection slopes.