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814 results about "Pressure load" patented technology

As nouns the difference between pressure and load is that pressure is a pressing; a force applied to a surface while load is a burden; a weight to be carried. is that pressure is to encourage or heavily exert force or influence while load is to put a load on or in (a means of conveyance or a place of storage).

Pressing-twisting multi-shaft loading testing machine

The invention discloses a pressing-twisting multi-shaft loading testing machine. The pressing-twisting multi-shaft loading testing machine comprises a machine frame, a sample pressure chamber, an axial pressure controller, a confining pressure controller and an oil source system, wherein the sample pressure chamber is arranged on the machine frame and is used for accommodating samples therein; the axial pressure controller is used for applying axial loads to the samples in the sample pressure chamber; the confining pressure controller is used for applying confining pressure loads to the samples in the sample pressure chamber; the oil source control system is used for controlling the axial pressure controller and the confining pressure controller respectively to apply different paths of loads; and the axial pressure controller and the confining pressure controller are configured in a mode that the axial force is coupled with the confining force when the loading of the samples in the sample pressure chamber is buffered. The pressing-twisting multi-shaft loading testing machine can integrate complicated loading such as pressing-twisting combination, plane strain, true triaxiality and the like and is suitable for the tests of static power units of the common coarse-grained soil and ideal soil simulation materials during engineering construction.
Owner:TSINGHUA UNIV

Water-gas two-phase adsorption-desorption-seepage experimental system and method for loaded coal containing methane

The invention discloses a water-gas two-phase adsorption-desorption-seepage experimental system and method for loaded coal containing methane. The water-gas two-phase adsorption-desorption-seepage experimental system for loaded coal containing methane comprises a pressure loading part, wherein the pressure loading part comprises a tank body for containing a constant-temperature water bath, a reference pot and a coal sample holder are arranged in the tank body, the gas inlet of the reference pot is connected with a high-pressure methane delivery pipeline, the gas outlet of the reference pot is connected with the gas inlet of the coal sample holder through a connecting pipeline, and the gas outlet of the coal sample holder is connected with a water-gas separation device. The water-gas two-phase seepage experimental method for loaded coal containing methane is carried out on the basis of the experimental system. By changing different loading conditions, loading paths and experimental temperatures, adsorption-desorption experiments and methane seepage experiments for the loaded coal containing methane under the conditions of different solid-gas thermal coupling can be realized, and water-gas two-phase seepage experiments and methane adsorption-desorption experiments under the condition of different moisture contents also can be realized.
Owner:HENAN POLYTECHNIC UNIV

Loading device for testing permeability of concrete chloride ions and test method

The invention discloses a loading device for testing the permeability of concrete chloride ions, which comprises a longitudinal loading system and a lateral loading system, wherein the longitudinal loading system comprises a longitudinal bearing steel plate, an 'L'-shaped positioning piece, a lateral high-strength transmission screw, a longitudinal steel base plate, a longitudinal dynamometer, a longitudinal ball seat, a longitudinal loading steel plate, a longitudinal hydraulic jack, a longitudinal fixing steel plate and the like; and the lateral loading system comprises a lateral bearing steel plate, an 'L'-shaped test piece block, a longitudinal high-strength transmission screw, a lateral steel base plate, a lateral dynamometer, a lateral ball seat, a lateral loading steel plate, a lateral hydraulic jack, a lateral fixing steel plate and the like. The invention also relates to a test method for testing the permeability of the concrete chloride ions by utilizing the loading device. The loading device and the test method solve the problems that the conventional device for testing the permeability of the concrete chloride ions cannot load tested pieces, cannot simulate the actual load condition of the conventional concrete and cannot measure the permeability of the concrete chloride ions under the condition of pressure load.
Owner:HOHAI UNIV +1
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