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Hydraulic Jack Lifting Strain Hammer Test Device

The technology of a test device and hydraulic jack, which is applied in the field of strain testing, can solve the problems of inconvenient operation of the test device, error of test results, etc., and achieve the effects of improving the difficulty of test transportation and testing, improving efficiency and improving reliability.

Active Publication Date: 2020-04-24
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention proposes a hydraulic jack lifting strain hammer test device, aiming to solve the problems of inconvenient operation and large error of test results in existing test devices

Method used

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  • Hydraulic Jack Lifting Strain Hammer Test Device
  • Hydraulic Jack Lifting Strain Hammer Test Device
  • Hydraulic Jack Lifting Strain Hammer Test Device

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Embodiment Construction

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] see figure 1 with Figure 4 , the figure shows the preferred structure of the hydraulic lift lift strain hammer test device provided by the embodimen...

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Abstract

The invention provides a hydraulic jacking high-strain hammering test device. The device comprises a heavy hammer, a hydraulic jack and a connecting mechanism, wherein the heavy hammer is provided with a penetrating hole penetrating through the heavy hammer; an oil cylinder of the hydraulic jack is arranged in the penetrating hole of the heavy hammer in a penetrating manner; a base of the hydraulic jack is used for being arranged at the top of a to-be-tested pile body; and the heavy hammer is detachably connected with the extending end of a piston of the hydraulic jack by the connecting mechanism. The hydraulic jack in the hydraulic jacking high-strain hammering test device provided by the invention jacks the heavy hammer and provides a central guiding action for the heavy hammer at the same time; the testing process of a test is simplified, and the testing efficiency is improved; in addition, the central guidance is more stable, the influence of an experimental device on test data is reduced, and the reliability of a test result is improved; the hydraulic jack is light and convenient to transport and safe in use; the test transportation and the testing difficulty are improved; and meanwhile, the safety of the testing process is improved.

Description

technical field [0001] The invention relates to the technical field of strain testing, in particular to a hydraulic jack-up strain hammer test device. Background technique [0002] After the construction of the pile foundation is completed, the strain test of the pile foundation is generally carried out. At present, the commonly used test method is the high-strain method of foundation piles. The high-strain method of foundation piles is to apply an impact force on the top of the pile in the axial direction, so that the pile has sufficient penetration, and the resultant pile mass stress and acceleration are measured. Response, and through wave theory analysis, determine the vertical compressive bearing capacity and integrity of the single pile. This test method needs to apply a certain impact force on the top of the pile along the pile body. At present, the method of heavy hammer and guide frame is usually used. This method needs to use a crane to lift the heavy hammer to a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 王宝齐王建勋贺雷刘华清刘佳龙冯自霞
Owner CHINA ELECTRIC POWER RES INST
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