319 results about "Horizontal shear" patented technology

The invention relates to a structural three-dimensional shock isolation and anti-overturning device. The main body mechanism of the device is formed by connecting a laminated rubber shock isolation support and a spring shock isolation support in series, and an upper connecting plate and a lower connecting plate are respectively arranged on the upper and lower sides of the main body mechanism. The device is characterized in that: a tensile steel wire rope uniformly distributed on four sides of the main body mechanism is arranged between the upper connecting plate and the lower connecting plate, and the limit deformation of the tensile steel wire rope in the horizontal direction is greater than the horizontal shearing elastic deformation of the main body mechanism. Through the device, the tensile strength of a common three-dimensional shock isolation device is improved, and swing of a high-rise building in an earthquake and even huge tension generated by overturning are resisted; meanwhile, because external tensile steel wire ropes are adopted, the device is convenient to mount and replace and has lower replacing expense.

Methods and apparatus facilitating radial profiling of formation mobility are disclosed. Radial profiling of formation mobility aids in an optimal completion of a well for enhanced production. Some aspects of the present invention provide a technique for radial profiling of formation mobility based on inverting differences between a Stoneley radial profile of horizontal shear slowness and a dipole radial profile of vertical shear slowness for a reservoir interval.

A direct shear tester for both portable field test and indoor test and a sampling and testing method are provided. The tester comprises a sampling device, a portable vertical load system and a horizontal shear system. The testing method comprises burying a rigid frame together with a cruciform shear frame in the soil of a place to be test, digging out the whole soil containing the rigid frame and the cruciform shear frame to obtain an integrated sample with less interference, placing and fixing the integrated sample in a rigid frame base on a box-shaped frame, applying a vertical force by using the portable vertical load system on the box-shaped frame, and measuring the strength of the sample by using the shear frame. During the test process, the volume change of the sample in the vertical direction is not limited. The tester has simple structure, easy operation and good portability. The testing method employs flexible tension shear mode instead of the rigid top-bunt shear mode, overcomes the friction and sampling problems, and avoids the vertical pressure offset during the test process by using the portable vertical loading system, thereby increasing the test accuracy.

The invention discloses a gauge for three directional deformation of a ground fissure. The gauge comprises two vertical uprights which are respectively fixed at the left side and the right side of theground fissure, a horizontal tension displacement testing device which is fixed between the two vertical uprights, a vertical displacement testing device and a horizontal shear displacement testing device which are arranged on one of the vertical uprights, a data analysis system and an alarm unit controlled by the data analysis system; the vertical displacement testing device comprises a verticalslide block and a vertical line displacement sensor; the horizontal tension displacement testing device comprises a horizontal support slide shaft, a horizontal support bar, a horizontal slide blockand a horizontal line displacement sensor; the horizontal shear displacement testing device is an angular displacement sensor; and the horizontal line displacement sensor, the vertical line displacement sensor and the angular displacement sensor are connected with the data analysis system. The gauge has the advantages of convenient installation and debugging, convenient use and operation, high testing precision and good testing effect, and can synchronously detect absolute values of three directional deformations at the same point of the ground fissure.

The invention discloses a rock and earth mass in-situ direct shear test device with an automatic data acquisition system and a rock and earth mass in-situ direct shear test method and relates to a rock mechanical test technology. A rock and earth mass test sample can be subjected to shear failure on a proposed shear surface by applying a normal load and a horizontal shear force to the test sample, and the automatic data acquisition system is used for recording relevant data such as shear stress and displacement in a test process. The test device comprises the test sample (00), a shear box (10), a reaction system (20), a perpendicular pressure system (30), a force transmission system (40), a tangent pressure system (50), a roller row (60) and an automatic data acquisition system (70). By adopting strain control, the rock and earth mass in-situ direct shear test device is high in measurement precision and high in stability; the rock and earth mass in-situ direct shear test device is provided with the automatic data acquisition system; a spoke sensor is used through stress control, so that stress can be precisely measured; all components can be detached, so that the rock and earth mass in-situ direct shear test device is convenient to transport and mount.

A vehicle apparatus comprises a slider body having a substantially vertical slide slot and a substantially horizontal shear pin. The slider body further includes a headlamp mounting section and a hood bump-stop mounting section. An adjustable bumper is received by the hood bump-stop mounting section with an adjustable height. A reinforcement member is configured to be fixed with respect to a grille opening of the vehicle. The reinforcement member has a bore aligned with the slide slot for receiving a fastening pin and an aperture receiving the shear pin. A force greater than a predetermined force applied to the adjustable bumper results in the shear pin breaking off in the bore and the fastening pin sliding along the slide slot as the slider body moves downward.

The invention relates to a testing device for vertical cyclic compression-lateral swing shearing dynamic loading. The testing device comprises a peripheral frame, a model case arranged in the peripheral frame, a loading unit for loading the model case and a data acquisition unit for acquiring testing data of a soil test sample in the model case, wherein the soil test sample fills the model case; the loading unit comprises a vertical dynamic load actuator which applies a vertical dynamic load, a lateral swing dynamic load actuator which applies a lateral swing horizontal shearing dynamic load and a lateral pressure loading unit which controls a confining stationary load of the model case. Compared with the prior art, the device provided by the invention can independently apply a horizontal rotating cyclic dynamic load to realize cyclic shearing dynamic load, and can be independently loaded or coupled with the vertical cyclic dynamic load. Moreover, the device is simple in structure, easy to assemble and detach and simple and convenient to operate in the experimental process.

The invention discloses a shear creep tester which comprises a testing bench, a shear box arranged on the testing bench and formed by lower and upper shear box portions, a bearing cover arranged on the top of the shear box, a pressure sensor arranged on the bearing cover, and a tension sensor connected with one side of the upper shear box portion. The pressure sensor is connected with a vertical pressure loading pulley block by a transmission frame. The lower shear box portion is connected with a horizontal shear loading pulley block by a traction rope. The moving end of the traction rope, bridging the vertical pressure loading pulley block and the horizontal shear loading pulley block, is connected with a counterweight. The invention has the advantages of reasonable design, simple, flexible and practical structure of pulley block, high test accuracy, stable performance, and convenient operation.

A shoe sole is described that provides both cushioning and stability. The sole has a plurality of layers, including a transition layer which allows relative motion between the layers adjacent to the transition layer. The relative motion between the layers of the sole reduces the impact of horizontal shear stresses on the wearer's feet and ankles. One such transition layer includes pliable material and deformable holes within the pliable material. Another transition layer includes at least two rigid plates held together by less rigid grommets or sidewalls. The transition layer may be disposed beneath the entire shoe or only portions of the shoe, with either a more conventional sole structure or rigid support members completing the sole.

The invention discloses an electro-osmosis consolidation shearing device. The electro-osmosis consolidation shearing device comprises a frame, a vertical loading system, a horizontal shearing loading system and an electric insulation experiment box, wherein the frame comprises a bottom frame and a portal frame; the bottom frame is fixedly connected with the portal frame; the vertical loading system is fixedly connected to the upper wall of the portal frame, and comprises a shaft pressure air cylinder, a shaft pressure displacement electronic sensor and a shaft force sensor; the electric insulation experiment box comprises electrode tubes, an upper shearing box and a lower shearing box; during an electro-osmosis experiment, soil is placed in the upper shearing box and the lower shearing box, and the electrode tubes are inserted into the soil. The electro-osmosis consolidation shearing device is high in experiment efficiency, small in occupation area, convenient to operate, compact in structure, accurate and reliable in determination result, and applicable to an indoor or field experiment for the electro-osmosis test on soft clay and mucky soil in eastern coastal regions and the Pearl River Delta region, and serves for solving the related engineering problems of foundation deformation and stability parameter determination in geotechnical engineering problems of foundation treatment, coastal reclamation, port revetment and the like.

The invention provides an annular shearing experiment equipment and a testing method, the annular shearing experiment equipment includes a support seat, a shear box assembly located on the support seat, and a load applied to soil samples in the shear box assembly The loading device, the loading device includes a vertical vibration loading device and a horizontal shear vibration loading device, and the annular shear experimental equipment further includes a load control device for controlling the loading of the vertical vibration loading device and/or the horizontal shear vibration loading device. device. The vertical vibration loading device and/or the horizontal shear vibration loading device can apply vibration loads of different frequencies and amplitudes, which is beneficial to study the influence of dynamic loads on soil strength parameters, more conducive to simulating the actual stress situation, and conducive to revealing The stress changes, pore water pressure changes, local soil damage and liquefaction phenomena occurred during the shear test of the soil under the action of vibration loads, and then reveal the occurrence and movement mechanism of geological disasters such as landslides from the mechanical properties.

The invention relates to a multifunctional ring shear apparatus, which is applicable to measuring shear resistance of granular materials such as soil, stones and the like and volume change of the granular materials during shear. The multifunctional ring shear apparatus mainly comprises a main unit, a hydraulic lifting system, a rotary power system, a measuring system, a frame and the like, wherein the main unit, the rotary power system, the hydraulic lifting system and the measuring system are respectively fixed onto the frame, and the main unit comprises a shaft, an upper shear box, a lower shear box, a bearing flange and the like. A ring shear box provides a horizontal shear mode, a vertical shear mode and different roughness conditions, bulk granular materials such as the soil, the stones and the like flow in the ring shear box, the shear force of sheared surfaces of the granular materials is measured during flowing, and the ring shear box can be replaced in use. The multifunctional ring shear apparatus can be used for accurately measuring volume control, vertical pressure control, shear rate control, the shear force, shear rate, the volume change, pressure and the like of action objects.

In an embodiment of the disclosure, there is provided a strain isolation layer assembly. The assembly has a rigid solar layer; a strain isolation layer having a discontinuous configuration, a vertical rigidity, and a horizontal shear flexibility; and an underlying substrate layer. The strain isolation layer is coupled between the rigid solar layer and the underlying substrate layer to form a strain isolation layer assembly, such that the strain isolation layer isolates the rigid solar layer to reduce one or more strains induced on the rigid solar layer.

The invention provides a prefabricated assembled type steel-concrete combined beam connected through studs. The prefabricated assembled type steel-concrete combined beam connected through studs comprises an H-shaped steel beam which is formed by welding steel sheets, and shear bolt nails are welded to the upper wing edge of the steel beam; the prefabricated assembled type steel-concrete combined beam further comprises a prefabricated reinforced concrete floor, and through holes corresponding to the steel beam in position are reserved in the floor. After the steel beam and the prefabricated reinforced concrete floor are hoisted and docked, non-shrinkage self-compacting high-intensity concrete filler is poured into the holes, and integrated connection between the steel steam and the reinforced concrete floor is achieved. Good adhesion between the non-shrinkage self-compacting high-intensity concrete filler and the bolt nails is achieved, the bolt nails can have good horizontal shear resistance and drawing force resistance, and meanwhile the whole structure has good ductility and anti-seismic property. According to the prefabricated assembled type steel-concrete combined beam connected through studs, all components are prefabricated in a factory, assembling and connection are conducted at a construction site, site wet operation is reduced, project quality is guaranteed, the construction cycle is shortened, the assembling efficiency of building industrialization is improved, and social and economic benefits are good.

The invention discloses a precast concrete component butting method and a precast concrete component butting method applying the butting structure. The precast concrete component butting structure comprises a first step of installing an inserting and connecting anchor bar and a joint bar preformed hole at the butting end of a component, and a second step of pre-casting a plurality of embedded parts on the side face of the butting end. In the process of combining and butting, the precast concrete component provided with the joint bar preformed hole is plunged to the ground, epoxy resin mortar is poured into the joint bar preformed hole, the inserting and connecting anchor bar of the precast concrete component is completely inserted into the joint bar preformed hole filled with the epoxy resin mortar. A connecting piece is used for being connected with the embedded parts in a butting mode to enable the component to have a good butting structure. Due to the fact that the environment-friendly and non-toxic epoxy resin mortar serves as an antiseptic adhesive agent, the epoxy resin mortar at the connector position is plunged to the ground to be solidified after the butting is finished, compared with a traditional precast concrete component butting method, the novel precast concrete component butting structure is high in construction speed, and antiseptic property, anti-pulling property and anti-horizontal shear of the precast concrete component at the connector position are improved.

The invention discloses a piezoelectric transducer capable of omnidirectionally exciting and receiving horizontal shear wave, and a preparation method thereof. According to the present invention, a piezoelectric ceramic ring is polarized along a thickness direction and is equally divided into 2n fan-shaped bodies, electrodes are prepared on the side surfaces of the fan-shaped bodies, a ring is reconstructed, the polarizing directions of adjacent transducer subunits are opposite, and the piezoelectric transducer with characteristics of polarizing along the thickness direction, direction alternating and reversing, circumferential electric field applying, and omnidirectional SH0 wave exciting and receiving is formed; various transducer subunits are taken from the same piezoelectric ceramic ring, such that the difference of the polarization degree, the electromechanical coupling coefficient and other material parameters can be ignored so as to ensure the uniformity of the transducer along various directions; the polarization process along the thickness is far more simple than the circumferential polarization; compared to EMAT and MPT, the piezoelectric transducer of the present invention has advantages of high energy conversion rate, strong signal and strong anti-interference ability; and the piezoelectric transducer of the present invention has the strong practical value, and is suitable for the plate detection ultrasonic guided wave detection.

The invention provides an aluminum plate horizontal shearing machine, and relates to the technical field of aluminum material production equipment. The aluminum plate horizontal shearing machine comprises an uncoiling device, a feeding device, a cutter device, a conveying device and a stacking device which are sequentially arranged. The aluminum plate horizontal shearing machine is characterized in that a detection device is arranged between the cutter device and the conveying device, the detection device is in communication connection with a sorting device, the detection device comprises a detection frame, a light emitting source which is horizontally arranged in the direction perpendicular to the plate conveying direction is arranged on the detection frame, the light emitting source is equal to plates in width, a receiver which is equal to the light emitting source in width is arranged below the light emitting source, and the receiver is in communication connection with the sorting device. When the detection device detects that holes exist in the surface of the plates, the sorting device is directly controlled to work, the waste plates with the holes are pushed down from the conveying device, it is guaranteed that the plates conveyed to the stacking device through the conveying device are qualified finished plates, thus, manual sorting is not needed, the production quality ofthe plates can be guaranteed, and the labor intensity of workers is effectively reduced while the processing efficiency of the plates is guaranteed.

The invention discloses a microcomputer controlled electro-hydraulic servo large multifunctional pressure shearing tester capable of providing a large single pressure load, a horizontal shearing force value for a large pressure shearing test and a vertical ejection force value for a large corner test and capable of applying a large stress ratio to simulate the actual condition. The test comprises a host (1), a hydraulic system (2), an electro-hydraulic servo control system (3) and a sample conveying trolley (4), wherein the host (1) comprises a frame, a vertical servo loading cylinder (105), a corner servo loading cylinder (104), a box-type pressing plate (103) and a horizontal shearing servo loading device (108), wherein the frame consists of a movable cross beam (101), four lead screws (102) and a base (106); the vertical servo loading cylinder (105) and the corner servo loading cylinder (104) are arranged on the base (106) at the bottom of the frame; the box-type pressing plate (103) is connected with a piston of the vertical servo loading cylinder (105) through a load sensor; the horizontal shearing servo loading device (108) is arranged on the right side of the frame; and the horizontal shearing servo loading device (108) is arranged on a movable trolley (109), a guiding device (107) for controlling lifting of the horizontal shearing servo loading device (108) is arranged on the movable trolley (109), and a synchronous floating servo cylinder (110) is arranged on the lower part of the movable trolley (109).

The present invention provides a double-layer sector array folded coil structure integrated in a flexible circuit board, and designs and develops an arrayed omnidirectional type horizontal shear modal magnetostrictive transducer. Based on the magnetostrictive effect of ferromagnetic material nickel, the transducer realizes excitation of omnidirectional horizontal shear modal SH wave in the plate structure. Test verifies that the developed arrayed omnidirectional type horizontal shear modal magnetostrictive transducer can excite single SH0 modal waveguide inaluminum plate, and verifies that the developed omnidirectional type horizontal shear modal magnetostrictive transducer has better frequency response characteristics. The developed omnidirectional type horizontal shear modal magnetostrictive transducer and an array combined imaging algorithm can achieve efficient defect imaging on plate structure in wide range and board structure, and has very great value and potential in health monitoring and non-destructive evaluation of the plate structure.