67 results about "Seismic tests" patented technology

The present application relates to the technical field of shale oil and gas field development, and is a test system for simulating fault activation and induced earthquake under the action of horizontal well hydraulic fracturing, which comprises a horizontal well geological model, a distributed optical fiber monitoring system, a perforating system, a fracturing system, a formation temperature simulation system and a stress applying system. The present application has a reasonable and compact structure and is convenient to use. It can realize the application of true triaxial formation pressure, simulate the real formation temperature of the formation where the horizontal well is located, and continuously and real-timely monitor the multi-physical field of the fault-containing geological reservoir under the conditions of formation pressure, temperature, the whole process of horizontal well hydraulic fracturing and multi-step conditions. Therefore, the mechanism of hydraulic fracturing activating faults, the feature difference of multi-stage fracturing fracture network, the deformation of casing and the risk of induced earthquake can be quantitatively characterized and regularly analyzed, so as to study the formation and expansion of rock mass fracturing fracture network, the activation of faults and the deformation and damage process of wellbore casing during the whole process of fracturing at different stages of horizontal well.

The invention discloses a system for simulating the contact condition of a pantograph and a contact net after an earthquake. Relates to the field of railway bridge contact net anti-seismic tests. The system comprises a contact network simulation assembly, a train simulation assembly and a vibration table assembly. The contact network simulation assembly comprises a winch, a contact rope and two supporting columns. The two supporting columns are fixedly arranged at intervals, the winch is arranged at the top ends of the supporting columns and used for driving the contact rope to slide between the two supporting columns, the train simulation assembly comprises a train body, wheel parts arranged below the train body and a pantograph arranged on the train body, and the pantograph is in contact with the contact rope; the vibration table assembly comprises a table body and a vibrator used for vibrating the table body. The table body comprises a plurality of table tops which are independently arranged; the wheel part is placed on the table body; the vibration table assembly is adopted, each wheel below the train head is placed on the corresponding vibration table, and compared with the situation that a large vibration table top is placed below each wheel of a front bogie and a rear bogie, the real situation that the vibration states of all the wheels are different when a train runs on an unsmooth track after an earthquake is better met, the requirement for laboratory equipment conditions is lower, and the working efficiency is improved. Theoretically, test simulation is easier to realize, and the test result is more real, accurate and comprehensive.

The invention belongs to the technical field of earthquake simulation tests, and particularly relates to a fault dislocation testing device and method for a three-dimensional earthquake test, and the fault dislocation testing device is composed of two beveling models which are in the same form and are beveled on a cube along diagonal lines of an upper square surface and a lower square surface of the cube. The contact surface of the two beveled models, namely the opposite surface formed by beveling the two beveled models along the diagonal line, is a fault surface, and the fault models are arranged according to different test methods. The experimental device comprises the fault models, a strain observation system, an acoustic emission monitoring system, an active acoustic emission observation system and a laser total reflection fault monitoring system; according to the invention, a laboratory earthquake experiment can be realized, a laser total reflection fault observation system is researched and developed on the basis of a stress-strain observation device and an active and passive acoustic emission device, and synchronous monitoring of fault stress-strain, acoustic emission signals, displacement and fault surface contact conditions can be realized at the same time.

The utility model relates to the technical field of anti-seismic inspection, and discloses a frame anti-seismic inspection bench for constructional engineering design, which comprises a base plate, an installation shell is fixedly installed at the top of the base plate, and a fluctuation assembly for carrying out seismic longitudinal wave anti-seismic inspection is arranged on the installation shell. And the fluctuation assembly comprises a fixed shaft, a movable shaft, a motor, an eccentric wheel and a fluctuation rod, the fixed shaft is fixedly installed between the opposite sides of the inner side walls of the installation shell, and the movable shaft is rotationally connected between the opposite sides of the inner side walls of the installation shell. According to the frame anti-seismic inspection bench for constructional engineering design, the fluctuation assembly is arranged, after the fluctuation assembly is used, the movable shaft drives the eccentric wheels in different directions to rotate, the fluctuation rod is driven by the eccentric wheels to swing back and forth along the axis of the fixed shaft, and due to the eccentric wheels in different directions, the fluctuation rod swings up and down differently, and crests and troughs can be formed; therefore, a form similar to a seismic longitudinal wave is formed, and the longitudinal wave anti-seismic test of the frame is realized.

The invention discloses an anti-seismic test simulation system for a mountain tunnel crossing a fault fracture zone. The anti-seismic test simulation system comprises a basic vibration unit, a differential loading model box unit, a surrounding rock ground stress simulation unit, a tunnel structure simulation unit and a control acquisition unit. The basic vibration unit simulates seismic oscillation, the differential loading model box unit is arranged above the basic vibration unit and comprises a fixed model box, an active model box and a planar differential driving platform, the planar differential driving platform drives the active model box to move to simulate fault movement, and a follow-up telescopic supporting bottom plate is arranged in the bottom surface of the fixed model box; an annular fault fracture zone simulation unit which is convenient to replace and is integrated with a seepage pipe assembly is arranged on the tunnel structure simulation unit, the surrounding rock crustal stress simulation unit is used for applying crustal stress, and a sensor network is arranged in the tunnel structure simulation unit to collect dynamic response data. According to the invention, accurate coupling simulation of earthquake and fault movement is realized, the test efficiency is high, and reliable test support can be provided for tunnel engineering.

The application discloses a kind of civil engineering seismic test equipment, it is related to seismic test equipment technical field.The present application includes test table, the bottom of test table is fixedly installed with driving motor, the output end of driving motor is fixedly installed with first gear through test table, both sides of first gear are engaged with second gear, the top of two second gears is fixedly installed with incomplete gear, incomplete gear is engaged with rack, rack is slidingly connected on test table, rack top is fixedly installed with positioning plate frame, positioning plate frame is fixedly installed with hollow column in the inside.The present application drives gear set by driving motor, makes rack horizontal multidirectional reciprocating motion, drives positioning plate frame to let installation platform generate multidirectional motion trend.Simultaneously, the vibration motor under installation platform is started, and its vibration direction is random or preset, and is superimposed with installation platform motion, so that test device is stimulated by complex vibration, is closer to earthquake actuality, improves simulation accuracy, and is beneficial to the research of civil engineering structure performance.

The invention provides a method and system for quantitatively evaluating desert area vibroseis acquisition parameters, and the method comprises the steps: determining an appropriate vibroseis targeted processing flow through the high-density three-dimensional seismic test data of a desert area vibroseis, carrying out the data recombination of original full data through designing a plurality of different degradation acquisition schemes, and carrying out the quantitative evaluation of the desert area vibroseis acquisition parameters. And then data processing is carried out by using the same processing flow and corresponding parameters, analysis in the aspects of signal-to-noise ratio, fracture and reservoir is carried out on the processed post-stack data, and the effects of several different schemes are compared to determine an appropriate acquisition observation system, so that accurate quantitative evaluation of the acquisition parameters of the vibroseis in the desert area is realized. And powerful technical support is provided for further popularization of a controllable seismic source exploration technology in the area in the future.

The utility model discloses a karst pile foundation anti-seismic test device which comprises a vibration table, a stacked frame, a sliding mechanism, an anti-seepage flexible rubber membrane and a detection mechanism, the vibration table is vertically provided with four elastic columns, and the four elastic columns are arranged at the four corners of a rectangle respectively; four corners of the frame single bodies are respectively connected with the four elastic columns, the lowest frame single body is fixedly connected with the vibration table, and the test filling cavity is used for filling a soil body; any two adjacent layers of frame single bodies are connected through a sliding mechanism so that the two layers of frame single bodies can relatively slide in the horizontal direction. The transparent anti-seepage flexible rubber film is laid in the test filling cavity and is attached to the cavity wall of the test filling cavity; and the detection mechanism is arranged in the soil body to detect parameters of the soil body so as to represent the test condition of the anti-seismic test. The karst pile foundation anti-seismic test device can solve the problems that an existing karst pile foundation anti-seismic test device is large in boundary fluctuation reflection and not ideal in test effect under the non-uniform seismic excitation condition.

The utility model discloses an anti-seismic test device for civil engineering structural design, which comprises a bottom plate, a two-section vibration mechanism, a clamping mechanism and an anti-skid mechanism, and is characterized in that the two-section vibration mechanism comprises a mounting frame, a mounting groove is formed in the mounting frame, a spring is fixedly connected in the mounting groove, and the upper end of the spring is fixedly connected with an experiment table; the upper side of the bottom plate is fixedly connected with a mounting plate. Through the arrangement of the two sections of vibration mechanisms, the air cylinder is started, the piston rod of the air cylinder stretches out and draws back, the experiment table is driven to rapidly vibrate left and right, and the springs fixedly connected in the mounting grooves in the mounting frame are combined, so that the experiment table generates high-strength and high-frequency vibration under the strong pushing of the air cylinder and the elastic buffering action of the springs; through the two-section vibration mode of first small-amplitude displacement and then high-strength vibration, the process of an actual earthquake from initial movement to main earthquake is completely reproduced, the model fully experiences earthquake acting force at different stages, and the earthquake resistance of the model is more comprehensively detected.

The embodiment of the invention provides a plate-type fuel assembly anti-seismic test bench and method, and relates to the technical field of nuclear reactor safety tests. The invention aims to solve the problems that a plate-type fuel assembly test device is easy to cause distortion of measured data due to self-vibration interference under earthquake excitation and cannot provide an effective verification reference for a numerical model. According to the plate type fuel assembly anti-seismic test bed, through the design of the main body structure of the bottom plate and the water tank, the first-order inherent frequency of the test bed in the no-load state and the full-load state is larger than 60 Hz, and the transverse static rigidity of the test bed is larger than 20 kN / mm. The plate-type fuel assembly anti-seismic test method is implemented by adopting the rack. The test bench has inherent frequency which is far higher than the frequency of a tested piece and the frequency of earthquake excitation, and enough static rigidity and dynamic rigidity, thereby fundamentally eliminating the interference of the vibration of the bench itself on the result of an anti-seismic test, and ensuring the accuracy and reliability of measured data.

The invention discloses an underground fracture identification method, system and device and a medium. The method comprises the following steps: acquiring real seismic data; respectively inputting the real seismic data and the seismic test data set into an improved fracture identification model to respectively obtain a real probability graph and a test probability graph; and comparing the real probability graph with the test probability graph to obtain an underground fracture area in the real probability graph. According to the invention, the underground fracture can be directly and automatically identified through the real seismic data, and the method has the characteristics of high efficiency and high universality.

The invention relates to a structural column anti-seismic test loading device under complex working conditions, which comprises a polygon prism column head, a square hole matched with a square column in size is formed in the column head, the extending end of a horizontal jack is extruded on one side surface of the column head, and a fixing structure for fixing the square column and driving the square column to rotate is arranged on a bracket. During use, the column head is a polygon prism, so that the column head has side surfaces with a plurality of inclined angles, the horizontal jack applies thrust to different side surfaces of the column head to apply loads to the column at different angles, and the number of the side surfaces of the column head can be selected; therefore, horizontal loads can be applied to the rectangular-section column in multiple directions, the influence of the torsional effect is implied, loads can be applied to multiple angles, then the spatial column curved surface is obtained, if the number of loading points is designed to be large enough, the spatial curved surface can be completely simulated, and the spatial curved surface can be simulated. The column space curved surface is used for replacing a column space curved surface obtained according to a superposition method, so that the design of the column is safer.

The invention provides a test method of a heat pipe for a heat pipe micro-stack. The test method comprises the following steps: sequentially carrying out a high-temperature aging test, an irradiation aging test, an earthquake test and an accident test on a to-be-tested heat pipe for the heat pipe micro-stack; the temperature of the high-temperature aging test is 800-900 DEG C. The test method is reasonable in design and simple in test process, whether the performance of the heat pipe for the heat pipe micro-reactor reaches the standard or not after being subjected to various different conditions is truly and reasonably tested, and development of related technologies of the heat pipe micro-reactor is promoted.

The present application relates to the technical field of detection device, specifically relates to a kind of steel structure connecting node's anti-seismic testing device.A kind of steel structure connecting node's anti-seismic testing device includes two adjusting mechanisms.Adjusting mechanism includes pivot, eccentric component and adjusting component.Eccentric component includes multiple eccentric wheels.Multiple eccentric wheels are divided into multiple first wheels and multiple second wheels.Two pivots rotate in the same direction, and first wheel or second wheel drives movable platform reciprocating movement by adjusting component.Because the sum of the eccentric force of multiple first wheels on one pivot is equal to the sum of the eccentric force of multiple second wheels, and the eccentric direction of first wheel and second wheel is opposite, it can avoid first wheel and second wheel to make the up and down vibration of pivot.The present application provides a kind of steel structure connecting node's anti-seismic testing device to solve the problem that cam will cause the up and down vibration of cam pivot when using eccentric cam structure in existing anti-seismic test device, thereby affecting anti-seismic test.

The utility model belongs to the technical field of test, in particular relates to a reinforced concrete frame column test device, and aims to solve the problems that in the conventional reinforced concrete column test, particularly when an anti-seismic test is carried out on a reinforced concrete column, the reinforced concrete columns poured in different proportions are inconvenient to intuitively compare, and the test time is shortened. In order to solve the problems that in the prior art, in the prior art, in the prior art, a user often needs to be far away from a testing device during testing, personnel are prevented from being injured, and meanwhile testing personnel cannot conveniently observe details of the test in a close range, the following scheme is provided that the device comprises a base, a shaking base is arranged at the top of the base, and a first foundation pit and a second foundation pit are formed in the top of the shaking base. When the device is used, the shaking mechanism achieves the function of testing two reinforced concrete columns with different proportions by simulating a real earthquake environment, and the protection mechanism ensures the smooth proceeding of the test and the accuracy of the result by guaranteeing the safety of test personnel and facilitating observation and recording.

The invention relates to the technical field of detection devices, in particular to an anti-seismic test device for a steel structure connection node. An anti-seismic test device for a steel structure connection node comprises two adjusting mechanisms. The adjusting mechanism comprises a rotating shaft, an eccentric assembly and an adjusting assembly. The eccentric assembly comprises a plurality of eccentric wheels. The plurality of eccentric wheels are divided into a plurality of first wheels and a plurality of second wheels. The two rotating shafts rotate in the same direction, and the first wheel or the second wheel drives the movable platform to reciprocate through the adjusting assembly. The sum of the eccentric forces of the first wheels on one rotating shaft is equal to the sum of the eccentric forces of the second wheels, and the eccentric directions of the first wheels and the second wheels are opposite, so that the rotating shaft can be prevented from vibrating up and down by the first wheels and the second wheels. The invention provides an anti-seismic test device for a steel structure connection node, and aims to solve the problem that when an eccentric cam structure is used in an existing anti-seismic test device, a cam shaft vibrates up and down due to eccentricity of a cam, so that an anti-seismic test is affected.

The invention provides an anti-seismic testing method and system for a railway gravity type pier shallow foundation, and relates to the technical field of anti-seismic testing. The method comprises the steps that a plurality of test models of the railway gravity type pier shallow foundation are manufactured, and a quasi-static test is carried out; acquiring side substrate pressure of multiple times of displacement loading of the multiple test models; according to the side base pressure, the base lift-off amount is determined; acquiring the horizontal displacement and the horizontal load of the pier top subjected to multiple times of displacement loading of the plurality of test models; acquiring a force-displacement hysteresis curve of the plurality of test models; determining an equivalent stiffness attenuation gradient; when the quasi-static test is finished, crack parameters of the multiple test models are obtained; determining a crack energy dissipation ratio; and the anti-seismic performance of the railway gravity type pier shallow foundation is determined. According to the device and the method, the anti-seismic performance of the railway gravity type pier shallow foundation can be tested according to the foundation lift-off amount, the equivalent stiffness attenuation gradient and the crack energy dissipation proportion, and the accuracy and comprehensiveness of the anti-seismic test are improved.

The present application relates to the field of structural mechanical performance test, in particular to a kind of lining structure intelligent test device and method under long-term load and extreme load coupling, test device includes: arch lining structure test piece;Earth and stone groove;Lining behind cavity water corrosion system, for simulating the corrosion effect caused by the cavity between lining outer surface and earth and stone caused by water seepage;Surrounding rock load system, jack is loaded on elastic pad by loading plate, so as to apply uniform surrounding rock load to earth and stone medium in earth and stone groove;Impact test system, for simulating the damage effect of vehicle out of control impact on lining structure;Earthquake test system, for simulating seismic disturbance;Intelligent control system, corrosion liquid supply device and jack can be intelligently regulated and controlled according to the data obtained by concentration sensor and pressure sensor monitoring.The present application can simulate the destructive influence of high surrounding rock stress, water-rich surrounding rock environment corrosion, earthquake disaster and external force impact damage superposition conditions on lining structure.

The utility model discloses a bus anti-seismic test tool, which comprises a horizontal anti-seismic tool and a vertical triangular support tool fixed on the horizontal anti-seismic tool through bolts, a horizontal support arm is arranged on one side of the vertical triangular support tool, and a bus main body is mounted on the horizontal anti-seismic tool, the vertical triangular support tool and the horizontal support arm. A mounting bracket is arranged on the upper side of the horizontal supporting arm and is fixed at one end of the bus main body; the main body of the horizontal anti-seismic tool is welded by 10 # channel steel, the middle cross beam of the bracket is reinforced, the M16 harness cord and the angle iron are vertically reinforced during hoisting, the vertical triangular support tool is mounted when the anti-seismic property of the elbow is tested, and the vertical triangular support is provided with the horizontal corbel for mounting the bracket. When in use, the device can be matched with a horizontal anti-seismic tool to adapt to various bus tests.

The invention provides a recycled concrete sample shear anti-seismic test device, which comprises a test bed and a test box body, the test box body is arranged on the upper surface of the test bed, the test box body comprises a shell and a protective shell, a protective space is formed between the shell and the protective shell, an infrared heating mechanism is arranged in the protective space, and the infrared heating mechanism is arranged in the protective space. A thermal infrared imager is arranged on one side in the test box body, a first fixing mechanism is arranged at the top in the test box body, a second fixing mechanism is arranged at the bottom in the test box body, a shearing mechanism is fixedly arranged on one side of the test box body, the shearing mechanism comprises a hydraulic cylinder and a shearing head, the hydraulic cylinder is horizontally fixed on one side of the test box body, and the shearing head is fixedly arranged on the other side of the test box body. And the output end of the hydraulic cylinder is connected with a shearing head.

The utility model discloses an anti-seismic test system for a heat exchange device, which comprises a vibration test bench, an acceleration sensor, a strain gauge, a displacement sensor and a data acquisition and recording system, and the acceleration sensor, the strain gauge and the displacement sensor are respectively connected with the data acquisition and recording system and are arranged at appointed positions of the heat exchange device. According to the utility model, by reasonably planning the arrangement positions of the acceleration sensor, the strain gauge and the displacement sensor, the state of the heat exchange device under the earthquake wave condition can be effectively simulated in the process of simulating the earthquake vibration table test, the performance index of the heat exchange device can be effectively obtained, and the obtained data can better simulate the actual value under the earthquake condition; and the method can be used for comparing, analyzing and calculating numerical values to complete design verification of the heat exchange device.

The invention, which relates to the technical field of the speed reducer test equipment, discloses an anti-seismic and anti-shake test bench for a large hollow lightweight speed reducer, comprising an anti-seismic test bench, the top of the anti-seismic test bench is symmetrically provided with positioning mechanisms, the bottom of the anti-seismic test bench is provided with a cushioning mechanism, and the anti-seismic test bench is provided with a test mechanism. The positioning air cylinder pushes the side pushing block and the positioning clamping plate to slide in the opposite direction, the multi-face stable clamping effect is provided for the speed reducer, the sliding block provides the guiding effect in the moving process, the positioning accuracy can be improved, meanwhile, the lifting sliding rail is further installed on the side face of the side pushing block, and the positioning precision is improved. The lifting sliding blocks are arranged on the outer sides of the positioning clamping plates and slidably connected to the inner sides of the lifting sliding rails, the lifting threaded rods are used for threaded connection in the positioning clamping plates, the lifting motors are used for driving the lifting threaded rods to rotate to drive the positioning clamping plates to achieve height adjustment, then rapid adjustment according to the height of the speed reducer is facilitated, and the application range is widened.

The invention discloses a drive line anti-seismic test simulation supporting structure for a high-temperature liquid metal reactor. The drive line anti-seismic test simulation supporting structure comprises an upper flange assembly, a middle-upper flange assembly, a middle-lower flange assembly and a lower flange assembly, an upper inner cylinder assembly is installed between the upper flange assembly and the middle upper flange assembly and is cylindrical, an upper decoupling assembly is installed on the outer side of the upper half portion of the upper inner cylinder assembly, and an upper outer cylinder assembly is installed on the lower half portion of the upper inner cylinder assembly. The inner cylinder assembly can be used for installing a control rod drive wire test piece, accommodating a high-temperature liquid metal melting medium and assembling an electric heating element so as to have heating and heat preservation functions, and a gap between the inner cylinder and the outer cylinder can be filled with a heat preservation and insulation material and can serve as an anti-leakage protection layer. The outer cylinder has the effects of supporting the test body and adjusting the overall structural rigidity; the flange assembly has the effects of connecting the inner and outer cylinders and transmitting an earthquake excitation load, and can also be assembled with an electric heating element so as to ensure the temperature uniformity of the test body.

The invention particularly relates to an anti-seismic test device and a test method thereof. The anti-seismic test device comprises a test base, a support frame, a simulated vibration test mechanism, a laminated slab mounting assembly and a vertical push-pull mechanism, a test piece comprises a laminated slab and a bracket which are fixedly connected, the test base comprises a base and a reaction wall, and the support frame comprises a reaction support beam fixedly connected with the reaction wall. The simulation vibration test mechanism comprises a clamping assembly, a vertical jack, a connecting plate and an actuator, the clamping assembly comprises a plurality of clamping units, each clamping unit comprises two clamping pieces, the two clamping pieces abut against the two side faces of the bracket respectively, and the two clamping pieces are fixedly connected; the vertical jack is fixedly connected with the counter-force supporting beam; the actuator is connected with the reaction wall; the movable end of the actuator is detachably and fixedly connected with the connecting plate, and the connecting plate is fixedly connected with all the clamping pieces on one side. The laminated slab mounting assembly comprises two mounting units, and each mounting unit comprises a gusset component abutting against the side face of the laminated slab.

The invention relates to the technical field of concrete anti-seismic tests, and discloses a concrete filled steel tube anti-seismic performance test device and a test method.The concrete filled steel tube anti-seismic performance test device comprises a pressure applying piece, the pressure applying piece comprises a rotating rod rotationally connected to the inner wall of a mounting groove, a folding rod is rotationally connected to the bottom of the rotating rod, and a first sliding frame is slidably connected to the inner wall of the folding rod; when an electric telescopic rod shrinks, a rotating rod drives a part of an adaptive mechanism to rotate clockwise by taking a connecting point as a center, and along with downward rotation of the rotating rod, a folding rod pushes a sliding frame I to move towards a placement groove along the inner wall of a mounting groove, so that the sliding frame I drives a contact sliding plate I to be in contact with the side wall of the concrete-filled steel tube test piece; along with pulling of the electric telescopic rod, the hydraulic box drives the second contact sliding plate to make contact with the top of the outer wall of the concrete-filled steel tube test piece, the procedure of pouring a bearing platform needed by a conventional test piece is changed, the shaking force of the vibration disc can be transmitted to the side wall of the test piece, and the accuracy of anti-seismic measurement is improved.

The invention discloses an intelligent analysis method and system for seismic isolation performance parameters based on a dynamic model, and relates to the technical field of seismic isolation performance analysis, and the method comprises the steps: obtaining seismic isolation system information, obtaining target seismic isolation grade information based on a seismic isolation design target according to seismic isolation system structure information, and obtaining a target seismic isolation grade according to protected equipment information; and based on the vibration sensitivity analysis of the protected equipment, obtaining the foundation vibration isolation grade information. According to the method, the stress condition of the seismic isolation system is accurately analyzed through the seismic stress feature points, the difference between different data is determined through the seismic isolation energy consumption coefficient, and the seismic isolation level is calculated by taking the basic seismic isolation level and the target seismic isolation level as the seismic simulation level range and the seismic intensity sensitive interval as the seismic level change value. The earthquake simulation test is carried out on the earthquake isolation system, the accurate test of the earthquake isolation performance is realized, the data is comprehensively processed through the weight coefficient, and the stability and the reliability of the analysis of the earthquake isolation performance are ensured.

The invention discloses a tunnel anti-seismic simulation test device and method, and belongs to the technical field of tunnel anti-seismic tests.The tunnel anti-seismic simulation test device comprises a base and an electromagnetic vibration table arranged above the base, a mounting table is arranged above the electromagnetic vibration table, a through groove is formed in the top of the mounting table, and an adjusting mechanism is arranged in the through groove; a mounting frame is further arranged above the base and comprises vertical plates arranged on the two sides of the electromagnetic vibration table and a top plate connected between the two vertical plates, mounting grooves are formed in the two ends of the sides, close to the mounting table, of the vertical plates, moving mechanisms are arranged in the mounting grooves, and pressing mechanisms are connected to the moving mechanisms; one side of the pressure applying mechanism is connected with the adjusting mechanism through a telescopic rod; according to the tunnel anti-seismic simulation test device and the test method provided by the invention, the first movable pressing plate and the second movable pressing plate are arranged, so that the uniformity of the stress of the surface of the tunnel during the vibration test is improved, and the test accuracy is further improved.

The utility model relates to the technical field of house building anti-seismic testing, in particular to a house building anti-seismic structure testing device which comprises a base table and a shaking table installed on the base table. The shaking table slides in the horizontal direction and is controlled by a driving part to move left and right back and forth. And a steering table is rotationally mounted at the top of the shaking table, is used for supporting and fixing the to-be-tested housing construction structure, and can be rotationally adjusted. In the testing process, after the steering table is fixed, the housing construction structure to be tested is placed and fixed on the steering table. And then the shaking table is controlled by the driving piece to shake back and forth at a certain frequency so as to carry out an anti-seismic test on the to-be-tested housing construction structure. And after the test in the direction is completed, the direction of the to-be-tested housing building structure is readjusted by rotating the adjusting steering table, and anti-seismic tests in different directions are carried out. According to the test mode, the anti-seismic test can be carried out on the house building structure from different directions and dimensions, the test dimensions are more comprehensive, and the test result is more reliable.

The invention relates to the field of structural mechanical property testing, in particular to an intelligent lining structure testing device and method under long-term load and extreme load coupling. A soil and stone groove; the lining back cavity water seepage corrosion system is used for simulating a corrosion effect caused by a cavity appearing between the outer surface of the lining and soil and stone due to a water seepage effect; according to the surrounding rock load system, a jack applies load to an elastic cushion layer through a loading plate, and therefore evenly-distributed surrounding rock load is applied to soil and stone media in the soil and stone groove. The impact test system is used for simulating the damage effect of out-of-control impact of the vehicle on the lining structure; the earthquake test system is used for simulating earthquake disturbance; and the intelligent regulation and control system can intelligently regulate and control the corrosive liquid supply device and the jack according to data monitored by the concentration sensor and the pressure sensor. The device and the method can simulate destructive effects of high surrounding rock stress, water-rich surrounding rock environment corrosion, earthquake disasters and external force impact damage superposition conditions on a lining structure.

The application provides a rotation angle measuring device suitable for low-cycle reciprocating pure torsion test, and relates to the technical field of structural seismic test measurement, and comprises a tension system rotation angle measuring device and a component rotation angle measuring device. The tension system rotation angle measuring device comprises a first rotating mechanism, an extension mechanism and a second rotating mechanism. The first rotating mechanism comprises a first cylindrical coupling installed along the Z direction and a first torsion sensor. The second rotating mechanism comprises a first cup-shaped connecting piece installed along the Z direction. The component rotation angle measuring device comprises a three-way sliding rail mechanism and a third rotating mechanism. The third rotating mechanism comprises a second cylindrical coupling installed along the Z direction, a second torsion sensor and a second cup-shaped connecting piece installed along the Y direction. The measuring device can accurately measure the pure rotation angle of the tension system in the XOY horizontal plane and the pure rotation angle of the measured component in the XOY plane.