44 results about "Seismic zone" patented technology

The present invention describes the use of a space-based Extremely Low Frequency (ELF) magnetic field detector in conjunction with ground-based network of ELF magnetic field detectors. In particular, a space based ELF detection system can be used to perform a wide area search and find precursor earthquake signals in both known and unknown earthquake zones, and a ground-based network of ELF detectors can be used to verify that the signals are indeed earthquake generated signals. The use of this invention will minimize cost and manpower necessary to effectuate an accurate and reliable earthquake detection system.

The invention relates to a building column-truncating, replacing and seismic-isolating support construction method and a supporting device. The construction method includes 1), mounting the supporting device, namely mounting the supporting device around an original-structure reinforced concrete column where a seismic-isolating support is needed to be mounted; 2), after the supporting device is mounted, truncating the column at a position where the seismic-isolating support is mounted; 3), disposing the seismic-isolating support in the position to complete mounting of the rubber seismic-isolating support. Seismic isolating technology is applied onto an existing building by utilizing a supporting system, so that cost for reinforcement and reconstruction is greatly lowered, earthquake resistance of the building is effectively improved and enhanced, a mode which is safer, more economical and more environment friendly is brought to proprietors, and a novel reinforcement method solution and a more scientific anti-seismic mode are provided for old buildings positioned in seismic areas.

For providing earthquake data for a defined area, stored are locations of a plurality of earthquake epicenters and seismic parameters associated with a plurality of seismic zones. The seismic parameters are indicative at least of magnitude and likelihood of earthquakes in each of the seismic zones. A location of a selected epicenter, within the defined area, is determined (S31) from the stored locations. Determined from the seismic parameters is a selected magnitude (S34) associated with a selected seismic zone comprising the selected epicenter. Established are characteristics of a plurality of earthquake events (S3) in the area over a defined length of time. The characteristics of an earthquake event include at least a selected epicenter and a selected magnitude. Generated is a signal indicative of the characteristics of the earthquake events. Enabled is an easy to maintain earthquake hazard model, having flexible and simple parameterization, and providing earthquake data consistent with historical data.

The invention provides a probabilistic earthquake economic loss calculation method and system. The method comprises the following steps: selecting a seismic zone and a potential seismic source regioninfluencing a target region, and determining a seismic activity model and seismic activity parameters; generating a seismic event database through a Monte Carlo random simulation method; selecting anattenuation model, and calculating the seismic intensity of any field point in the target area according to the seismic directory library; calculating the economic loss of the target area according tothe seismic intensity and the macroeconomic vulnerability model; and calculating the earthquake loss occurrence probability of any field point in t years and the economic loss of the field point under the specified probability condition in combination with a large number theorem and a full probability formula. The system comprises a model and parameter determination unit, an earthquake event database generation unit, an earthquake intensity calculation unit, an economic loss calculation unit and an earthquake loss occurrence probability and loss calculation unit. The method considers that thefield points may suffer from the same intensity influence for many times, and provides technical support for earthquake loss prediction.

The invention discloses an intensive seismic zone landslide prevention and treatment engineering health assessment and maintaining method which comprises the steps of establishing of an assessment system of a blocking wall, an anti-sliding pile health diagnostic indicator system and a pre-stressed anchor cable health diagnostic indicator system. The assessment system of the blocking wall is subjected to assessment with a fuzzy comprehensive method and a grey theory method. According to the anti-sliding pile health diagnostic indicator system, lists are used for carrying out field investigation, deforming measuring, foundation pile non-loss detecting and drill core sampling verifying, and finally a conclusion is obtained. According to the pre-stressed anchor cable health diagnostic indicator system, a fuzzy comprehensive assessment method is used, assessment of sensitive factors (a damage range is larger than or equal to 60%) is carried out first, and when the damage range of anchor cable engineering is limited, general factor assessment is carried out. The method has the advantages that through health assessment of intensive seismic zone (side) landslide prevention and treatment engineering, the health state of certain prevention and treatment engineering can be quickly and efficiently judged, a structure damage position, a damage type and the damage degree are obtained, and accordingly preventive measures are carried out in advance.

The present invention belongs to the technical field of the structural engineering, and in particular relates to an ultra high-rise combined wall double structure system. The invention is composed of a beam column component, a stronger shear wall and weaker two-edge connecting assembling steel plate walls. In the system, a connecting-leg shear wall system is composed of a combined steel plate wall and a framework girder, and a thin combined steel plate wall which is only connected with the framework column is filled with a span which is provided with a steel coupling beam. The stronger combined steel plate wall is the combined steel plate wall which is connected at four edges and is restrained by the prefabricated or cast-in-place concrete plate at two sides. The concrete plate and the middle steel plate are connected with bolt. The thin combined steel plate wall is the thin combined steel plate which is only connected with framework columns at two sides and is restrained by the precast concrete plate at two sides. The steel coupling beam and the adjacent span adopt a rigid connection mode. The ultra high-rise combined wall system provided by the invention is suitable for the seismic zone and has a series of predominant characteristics of definite breakage mode in the function of the earthquake, high bearing capacity, large hardness at the resistant side, centralized damage, facilitating the reparation and the like. The combined wall system of the invention has excellent aseismic behavior, ductibility and hysteresis energy dissipation capability, and is a predominant shock resistant energy dissipating component.

The invention discloses a supporting device for a secondary lining of a tunnel vault of a broken area of a high seismic zone. The supporting device comprises a template supporting structure, a fixed supporting structure and a base, wherein the template supporting structure comprises a first arc plate and two second arc plates; the two second arc plates are respectively rotatably connected to two ends of the first arc plate; the fixed supporting structure comprises a first electric hydraulic push rod, two second electric hydraulic push rods, an arc-shaped supporting plate and a vertical column;the arc-shaped supporting plate is arranged below the template supporting structure in the same arrangement way; the push end of the first electric hydraulic push rod is fixed with the first arc plate, and the fixed end of the first electric hydraulic push rod is fixed with the convex surface of the arc-shaped supporting plate; the push ends of the two second electric hydraulic push rods are respectively fixed with the corresponding second arc plates, and the fixed ends of the two second electric hydraulic push rods are fixed with the convex surface of the arc-shaped supporting plate; the topend of the vertical column is fixed at the center position of the concave surface of the arc-shaped supporting plate, and the bottom end of the vertical column is fixed at the top of the base. The supporting device disclosed by the invention can share the pressure on the tunnel vault and is high in supporting stability.

The invention discloses a modular prefabricated steel-concrete combination frame structure which is composed of a prefabricated combination frame module and a modular connecting piece. The prefabricated combination frame module is composed of pre-embedded concrete-filled steel pipe prefabricated columns, pre-embedded profile steel concrete laminated beams and a concrete laminated plate. Steel pipes of the pre-embedded concrete-filled steel pipe prefabricated columns and profile steel of the pre-embedded profile steel concrete laminated beams are connected in a welded or bolted mode at joints.The concrete laminated plate is placed on protective layer concrete of the pre-embedded profile steel concrete laminated beams. Laminated layer concrete and concrete at the joints of the pre-embeddedconcrete-filled steel pipe prefabricated columns and the pre-embedded profile steel concrete laminated beams are poured jointly. The modular connecting piece is formed by welding of a connecting steelplate and high-strength steel pipes. According to the modular combination frame structure, the technical advantages of modular prefabrication can be given into full play, the seismic performance requirement can also be met, the technical and economic benefits are obvious, and the modular prefabricated steel-concrete combination frame structure is applicable to a seismic zone frame structure.

The invention discloses a monitoring method for real-time evaluation of the seismic intensity. Data including geological and building information of each target area are collected; statistics of information including related earthquake magnitudes and epicentral distances of historical earthquake cases and the like is carried out; a fitting curve for evaluating the seismic intensity is drawn underthe parameters; and then an off-site monitoring and early warning network system is set in a seismic zone region and the seismic information including the earthquake magnitude and the epicentral distance and the like is obtained timely at the occurrence of the earthquake by combining the seismic information collected by a local seismic wave monitoring instrument; and according to the seismic information, the possibilities of seismic intensity levels in all target areas are evaluated rapidly and accurately by combining the fitting curve of the seismic intensity.

The invention discloses a construction method for initial support during tunnel construction in a fracture zone of a high seismic zone. The construction method comprises the following steps: 1, detecting a rock stratum; 2, detecting underground water; 3, excavating a tunnel; 4, protecting the top; 5, integrally supporting. According to the construction method, gravel on the inner wall of the tunnel is closed and protected by a protective net first and then fixed by I steel and arched steel structures, and when a steel frame is fixed, surrounding rock on the inner wall of the tunnel can be completely closed, so that a phenomenon that the gravel does not fall from concrete in the step of spraying the concrete is avoided, tunnel construction is facilitated, and the safety of the tunnel construction is improved.

The invention provides a port machinery windproof anchoring device capable of compensating seismic motion. The port machinery windproof anchoring device comprises an anchoring support fixed with an anchoring beam in a cart steel structure, and an anchor pin assembled on the anchoring support, wherein the bottom of the anchor pin can extend downwards to be embedded into an anchoring pit preset in the ground in a matched mode to achieve limiting, a driving mechanism for driving the anchor pin to move up and down is arranged on the anchoring support, an anchor pin shearing plate is arranged on the lower part of the anchoring support and located at the up-down stroke position of the anchor pin, a through hole for the pin rod part of the anchor pin to extend downwards is formed in the anchor pin shearing plate, and the strength of the anchor pin shearing plate is weaker than that of the anchor pin. According to the port machinery windproof anchoring device, the displacement influence of the ground or the structure caused by the seismic load perpendicular to the cart direction can be released, the whole machine is prevented from overturning or the structure is prevented from being damaged, and the safety of harbor equipment and personnel safety of a seismic zone are improved.

The invention relates to the technical field of earthquake early warning and particularly relates to a high-speed rail earthquake early warning method and system. The method comprises steps of obtaining train data which comprises a running line, a train running direction and current position data; finding out first monitoring data according to the running line, the train running direction and the current position data, wherein the first monitoring data is geological stability data on a first seismic zone through which a train corresponding to the train data will pass; obtaining earthquake prediction data according to the first monitoring data, wherein the earthquake prediction data is data for predicting earthquake occurrence; according to the earthquake prediction data, an early warning instruction being sent to the corresponding train, and the early warning instruction being an instruction for prompting a driver on the corresponding train that the earthquake zone in front of the driver is dangerous, according to the earthquake prediction data, the geological stability data of the earthquake zone in front of each running high-speed train being monitored in real time. The method is advantaged in that ultra-fast early warning of each running high-speed train can be realized.

The invention relates to the field of seismic engineering and the field of giant disaster insurance services, and provides a seismic random event set simulation method considering large seismic time correlation, which comprises the following steps: determining seismic activity parameters on a seismic zone and a potential seismic source area; setting a random event set seismic sequence time length;for the potential seismic source area, generating a seismic random event set according to seismic magnitude grades; adopting a Poisson process model to obtain the magnitude, the size and the time ofthe earthquake for the low-magnitude gear; adopting a time correlation process model for a high-magnitude gear to obtain the magnitude, the size and the time of an earthquake; and integrating the seismic directories of the potential seismic source regions to obtain a seismic directory on the whole seismic zone. The invention creatively proposes that the seismic activity on the seismic zone integrally meets the Poisson distribution (time independent model) in statistical significance, and meanwhile, the potential seismic source region locally adopts a large seismic time correlation model, so that the whole and the local are organically combined, the accuracy and the practicability of seismic random event set simulation are greatly improved, and the method has a good application prospect.

The invention discloses a safe anti-seismic multi-layer buffer building structure, and relates to the technical field of buildings. The safe anti-seismic multi-layer buffer building structure comprises a fixed bottom plate, grounding assemblies are connected to the periphery of the top end of the fixed bottom plate through threads, and a buffer stabilizing assembly is fixedly connected to the top end of the fixed bottom plate; and a bearing plate is fixedly connected to the end, opposite to the fixed bottom plate, of the buffer stabilizing assembly, hydraulic shock absorbers which are evenly distributed are fixedly connected to the end, opposite to the buffer stabilizing assembly, of the bearing plate, a stress assembly is fixedly connected to the top ends of the hydraulic shock absorbers, and a stress plate is fixedly connected to the top end of the stress assembly. According to the safe anti-seismic multi-layer buffer building structure, the integrally formed multi-buffer structure has a special effect when encountering special situations such as earthquakes, so that the stability degree of the buildings above is better, the escape time can be effectively prolonged or the damage degree of the buildings caused by earthquake waves can be effectively reduced, and the safe anti-seismic multi-layer buffer building structure is suitable for being used by residents on an earthquake zone.

The invention discloses a method for predicting the damage angle of a gully accumulation body in a water-saturated state. The method comprises the following steps: performing field investigation, measurement and sampling of a debris flow groove in a seismic zone, and extraction of characteristic parameters of the debris flow gully; determining the volume weight of the accumulation body [gamma]S in the debris flow gully, the thickness of the accumulation body h, the saturated internal friction angle [theta] of the accumulation body, the porosity [epsilon] of the accumulation body, the thickness [delta]h of any accumulation body, and the gradient of the gully bed [alpha]; and substituting the obtained parameters into the formula to determine the damage angle of the accumulation body of the debris flow gully in the seismic zone in the water-saturated state. Compared with the prior art, the invention is based on rigorous theoretical derivation, which can reasonably accurately reflect the damage angle of the accumulation body in the debris flow gully in the Wenchuan earthquake area under rainfall-saturated conditions and provide a theoretical basis for the prevention and control of the debris flow in the post-earthquake reconstruction. The calculation result is high-precision and meets the need of actual project.

The invention discloses a semi-rigid semi-flexible anti-impact tunnel surrounding rock supporting structure under a seismic zone and a construction method thereof. The semi-rigid semi-flexible anti-impact tunnel surrounding rock supporting structure is composed of a surrounding rock body, a porous metal wallboard, a rigid support, a pull rod, an anchorage device, a pedestal, a porous metal base plate, a porous metal sleeve, a baffle and a drill bit, wherein the porous metal wallboard is arranged outside the surrounding rock body, the rigid support is arranged outside the porous metal wallboard, the pull rod is sleeved with the porous metal sleeve, the porous metal base plate and the pedestal are mounted on the pull rod, the anchorage device is arranged outside the pedestal, the anchorage device is mounted at the end of the pull rod, and the baffle and the drill bit are mounted at the bottom of the pull rod. A porous metal material is added on a rigid supporting structure, thus the safety of the rigid support can be ensured, the safety of the surrounding body is improved, and the impact effect of an impact load on the supporting structure is reduced; the porous metal material can adsorb concrete, the cohesiveness of a whole anchor rod and a wall body is improved, after the supporting structure is impacted, the porous metal material has high rigidity after being compressed, safeconstruction of a tunnel can be guaranteed, and the stability in the tunnel construction process is improved.

The invention discloses an earthquake disaster early warning and protection system. The system comprises a distributed earth crust vibration monitoring sensor subsystem, a distributed data link radiostation transmission subsystem, a household early warning terminal subsystem and a safety protection subsystem. According to the characteristics that the transmission speed of the system utilizing seismic waves is low and the electromagnetic wave transmission speed is high, earthquake information is early warned to people additionally provided with the system in advance; a reliable earthquake disaster avoiding space is provided for people additionally provided with the system, the space not only can protect people inside a house from being hurt when the house collapses, but also can provide necessary survival conditions for people, people deeply buried underground can safely survive for one month, and enough rescue time is provided for rescuers. The system is suitable for residents near aseismic zone, is particularly suitable for large cities with high population density and people living in tall buildings, can effectively protect high-grade earthquakes when the high-grade earthquakescome, and ensures that people additionally provided with the system are not threatened by life safety.

The invention discloses an anti-seismic composite beam for a house building. The anti-seismic composite beam comprises a device body, wherein a connecting plate is fixedly arranged on the outer wall of the device body, and bolts are movably connected to the interior of the connecting plate; and a first seismic reduction rod is fixedly arranged inside the device body, a second seismic reduction rodis fixedly arranged inside the device body, and a seismic reduction column is fixedly arranged inside the device body. According to the anti-seismic composite beam for the house building, by arranging the connecting plate and an I-shaped fixing groove, rapid and stable mounting is facilitated, mounting combination is facilitated, and the problems that a bearing beam cannot meet different house types and mounting is troublesome are solved; meanwhile, reinforcing fixing rods and the bolts are further arranged, so that shaking caused by infirm mounting of the device body during an earthquake isavoided, and the problem of potential safety hazards of residents is solved; and the arrangement of the first seismic reduction rod, the second seismic reduction rod and the seismic reduction column is beneficial to reducing the seisesthesia, reducing harm caused by the earthquake and improving the safety of the residents.

The invention discloses a bracket for spray anchor net support construction for a high seismic zone crushing area. The bracket comprises one or more bracket single bodies; the bracket single bodies comprise spray anchor nets, bracket strips, limiting plates, positioning nuts and inserting rods; each spray anchor net is composed of a spray anchor net main body frame arranged on the periphery and aplurality of reinforcing ribs arranged in the spray anchor net main body frame at intervals; the multiple reinforcing ribs form reinforcing rib nets, and the inserting rods are evenly inserted in thereinforcing rib nets; the bracket strips are fixed to the two sides of the spray anchor net main body frames correspondingly, and the multiple limiting plates are evenly fixed to the outer side facesof the bracket strips in the axial direction of the bracket strips; and the limiting plates and the bracket strips are mutually perpendicular, and first nut mounting holes for mounting the positioningnuts are formed in the limiting plates in the axial direction of the bracket strips. Through the structure, the spray anchor nets can be prevented from sliding down, the using efficiency of the sprayanchor nets is greatly improved, and the bracket is further conveniently separated to be carried.

The invention relates to a magnetorheological building base column and belongs to the technical field of earthquake-resistant fortification of buildings. This type of base column is a cylinder and is in the form of a discontinuous hollow body. The hollow cavity is filled with magnetorheological fluid; the inner wall of the base column is smooth and wrapped with coils, and the outer wall is a rough surface. The magnetorheological fluid in the base column will produce magnetorheological phenomena when the building encounters an earthquake. The energy-absorbing effect during the change of the magnetorheological fluid is used to absorb part of the vibration, shaking, etc. that will occur in the building due to the earthquake, thereby Reduce or delay the damage to buildings caused by earthquakes, thereby reducing damage to buildings and giving people in the buildings more time to escape. This type of foundation column is equipped with a seismic monitor to solve the problem of detecting earthquake intensity and earthquake duration; an angle sensor is installed in the building to detect the tilt of the building during an earthquake; the system detects the results of the earthquake monitor and angle sensor based on the Control the working status of the magnetorheological base columns in various directions.

The invention discloses a geological disaster prediction method and system based on solar magnetic field intensity. The method comprises the steps of measuring the solar magnetic field intensity in real time; measuring the surface area of a seismic zone, and calculating the plate volume and gravity of the seismic zone; calculating a heat value when the iron ion fluid cuts the solar magnetic field in a closed loop according to the solar magnetic field intensity and the volume of the charged iron ion fluid in the ground core; and predicting geological disasters according to the heat value, the seismic zone plate volume and the gravity. The method can accurately forecast an earthquake, simulate the earthquake and prevent earthquake disasters; the real reasons of earthquakes and volcanic eruption are found; advanced electromagnetism and quantum theories are applied; a plate motion theory research model is relatively perfect; and the calculation model of the plate acting force is more perfect.

The invention discloses a supporting anchor rod for steel frame pneumatically placed concrete support in a smashing area of a high seismic belt. The supporting anchor rod for steel frame pneumaticallyplaced concrete support in the smashing area of the high seismic belt comprises a bracket, a fixed block, a supporting part used for supporting building, a drive part used for driving the supportingpart to move up and down and a first connecting plate, wherein a first through hole penetrating up and down is formed in the middle of the fixed block, and the outer side of the first through hole isfixedly connected with the bracket; the supporting part is slidably arranged in the first through hole in a penetrating mode; the lower end of the supporting part is fixed to the drive end of the drive part; the lower end of the drive part is fixed to the first connecting plate; and the first connecting plate is located below the supporting part and fixedly connected with the bracket. According tothe supporting anchor rod for steel frame pneumatically placed concrete support in the smashing area of the high seismic belt, the height of the supporting anchor rod can be adjusted slightly, time is shortened, labor is saved, and the working efficiency is high.

The invention discloses a bracket for spray anchor net support construction for a high seismic zone crushing area. The bracket comprises one or more bracket single bodies; the bracket single bodies comprise spray anchor nets, bracket strips, limiting plates, positioning nuts and inserting rods; each spray anchor net is composed of a spray anchor net main body frame arranged on the periphery and aplurality of reinforcing ribs arranged in the spray anchor net main body frame at intervals; the multiple reinforcing ribs form reinforcing rib nets, and the inserting rods are evenly inserted in thereinforcing rib nets; the bracket strips are fixed to the two sides of the spray anchor net main body frames correspondingly, and the multiple limiting plates are evenly fixed to the outer side facesof the bracket strips in the axial direction of the bracket strips; and the limiting plates and the bracket strips are mutually perpendicular, and first nut mounting holes for mounting the positioningnuts are formed in the limiting plates in the axial direction of the bracket strips. Through the structure, the spray anchor nets can be prevented from sliding down, the using efficiency of the sprayanchor nets is greatly improved, and the bracket is further conveniently separated to be carried.

The invention is applicable to the technical field of manufacturing of a camping article, and provides an anti-seismic protective bed, which comprises a bed board and a protection device, wherein the bed board is arranged in a foldable mode by virtue of a rotating shaft; pin-jointed bases are respectively arranged at two ends of the rotating shaft; the protection device comprises a plurality of parabola-shaped metal rod supports and a protective covering fabric which is arranged on the metal rod supports; two ends of the multiple metal rod supports are respectively gathered on the pin-jointed bases; and at least one layer of corrugated alloy bracket which is matched with the bed board in dimension is arranged at the bottom of the bed board. The protective bed disclosed by the invention is simple in structure and is convenient in operation; the bed body can form a protective status within a short time, therefore the protective bed has a function of offering a temporary shelter rapidly; and the protective bed is applicable to outdoor or indoor use, and is suitable for engineering rescuing, victim settlement and home application in highly seismic zones.

The invention discloses an anti-seismic building block for house building. The anti-seismic building block comprises a device body, an anti-seismic device is fixedly installed in the device body, a rubber interlayer is fixedly installed on the outer wall of the anti-seismic device, a steel plate interlayer is fixedly installed on the outer wall of the rubber interlayer, a damping layer is fixedlyinstalled on the outer wall of the steel plate interlayer, and a protective layer is fixedly mounted on the outer wall of the damping layer. By arranging the rubber interlayer, the steel plate interlayer, the damping interlayer and the protective layer, the earthquake feeling and harm caused by an earthquake can be gradually reduced in an anti-seismic process, by arranging the anti-seismic device,vibration caused by the earthquake can be reduced, the device body is protected against damage, it is guaranteed that residents are in a safe state in the earthquake, the building block damage causedby earthquakes is avoided, the safety of the residents is improved, and the afraid of the residents in life is effectively reduced, so that the residents can live normally.