12 results about "Test rig" patented technology

The invention belongs to the technical field of civil engineering, and relates to multifunctional electro-osmotic strengthening equipment for soft clay and a testing method. The equipment consists of a main body part I and a measuring part II, wherein the main body part I comprises a sample chamber, solution chambers, electrodes, a conduit and a cover plate; the measuring part II comprises a power source, a conducting wire and an ammeter. The invention provides a testing device for simultaneously reaching strengthening of electro-osmotic drainage and strengthening of electro-osmotic injection of saline solutions of the soft clay. Different solution conditions are provided in an anode solution chamber to meet research requirements on different soil samples and different electro-osmotic strengthening methods; by measurement of potential distribution, current and temperature of samples and adoption of a control variable method, the research on electro-osmotic strengthening requiring simultaneously considering multi-field change is realized. The equipment can be applied to further research pertinently on electro-osmotic strengthening mechanism preferably.

The invention discloses a pile foundation static load compression resistance testing device, and relates to the technical field of building detection. The pile foundation static load compression resistance testing device comprises a main beam used for being arranged at the position above a to-be-tested pile foundation. A hydraulic cylinder is arranged at the lower end of the main beam. The main beam is further provided with two supporting assemblies used for supporting the main beam. The two supporting assemblies are located on the two sides of the to-be-tested pile foundation correspondingly.Each supporting assembly comprises a fixing part used for being inserted into the ground for fixation and a connecting part which is arranged above the corresponding fixing part and further connectedwith the main beam. Each fixing part comprises a round bar and a screw sheet which is spirally and fixedly connected to the outer side wall of the round bar in the axial direction of the round bar. Guiding parts are formed at the ends, far away from the connecting parts, of the fixing parts. Due to arrangement of the supporting assemblies, the fixing parts of the supporting assemblies and the ground are fixed to form large supporting force, the trouble of ground stabilization or filling replacement treatment is saved, and the pile foundation static load compression resistance testing device is made more convenient to use on the whole. In addition, the weight requirement for the main beam is greatly lowered, the number of heavy objects above is smaller, risks caused by heavy object hoisting are reduced and the overall testing safety is made better.

The invention relates to the technical field of special vehicles and particularly provides a tank pressure distribution test method and a tank internal pressure test device for a tank truck. The testmethod comprises the following steps: (1) setting a sampling area in a tank body, fixing pressure sensing devices for acquiring pressure data in the sampling area, and setting a data acquisition device in signal connection with the pressure sensing devices to acquire the pressure data; and (2) injecting liquid into the tank body to enable each pressure sensing device to be immersed into the liquid, starting the tank truck to drive the tank body to move, and obtaining and processing test data. The pressure distribution at an end socket is obtained in a real test environment, the accuracy of test data can be improved, technicians are helped to master the pressure intensity distribution in the tank body when the vehicle runs, effective data support is provided for the structural design of thetank body in the future, and great help is provided for improving the safety of the whole vehicle.

The invention discloses a leak rate testing device and a leak rate testing method for a composite material flange in a liquid oxygen temperature environment. The leak rate testing device comprises a helium tank group decompression device, a low-temperature flange testing device, a liquid nitrogen storage device, a helium leak rate testing device and a low-temperature container, the low-temperature flange test device comprises a composite material flange, an inner cylinder, an inner cylinder bottom cover and an outer cylinder, the inner cylinder bottom cover is positioned on one side of the opening end of the inner cylinder and is connected with the composite material flange; the inner cylinder is arranged in the outer cylinder and is connected with the outer cylinder; a gap is reserved between the inner cylinder and the outer cylinder; helium is injected into the inner cylinder by the helium cylinder group pressure reducing device; the low-temperature flange test device is arranged in the low-temperature container, and the liquid nitrogen storage device injects liquid nitrogen into the low-temperature container; and the helium leakage rate testing device is connected with the low-temperature flange testing device. The invention plays an important role in developing the use of the composite material flange on the rocket liquid oxygen storage tank, and has the advantages of strong operability, high safety and reliable test result.

The invention discloses an organic grouting material diffusion test device and method based on transparent rock mass. The test device comprises a transparent rock mass material processing device, a loading device which is a multi-field coupling micro electro mechanical hydraulic servo rock mass triaxial press; a monitoring device which comprises an acoustic emission detection device, a low-resistance tester, a high-speed camera, a polyethylene insulating plate, a conductive copper sheet, an acoustic emission probe, a wire, a data processor and a computer; a drilling device; and a grouting device. The device is used for exploring the diffusion mode of the organic grouting material in the rock mass, and the transparent rock mass with the same property as the original rock is manufactured, so that the problem that the interior of the rock material cannot be observed in the past is solved by means of the intuition of the transparent rock mass, and the research on the diffusion mechanism in the organic slurry surrounding rock is achieved.