Centrifuge test forced tamping simulation auxiliary test device

A test device, centrifuge technology, applied in the direction of measuring devices, instruments, etc., can solve the problems affecting the reliability of water and soil pressure load tests, different stress levels, etc.

Inactive Publication Date: 2016-07-20
TONGJI UNIV
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  • Abstract
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Problems solved by technology

Scholars at home and abroad have done a lot of research on the dynamic compaction method, but the practice of the dynamic compaction method is still far ahead of the theory
At present, scholars at home and abroad often use scaled-scale indoor model tests to discuss the mechanism of dynamic compaction, but the stress level of the scaled-down model under 1g is different from that of the on-site prototype, and cannot truly reproduce the stress level on site, which directly affects water and soil. Test reliability of pressure load

Method used

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  • Centrifuge test forced tamping simulation auxiliary test device
  • Centrifuge test forced tamping simulation auxiliary test device
  • Centrifuge test forced tamping simulation auxiliary test device

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Embodiment 1

[0025] Such as Figure 1-Figure 6 As shown, the base 1 can be made of ordinary concrete blocks, and it is used as a platform for temporary storage when making soil samples in the model box. The base 1 needs to be level. The tamping manipulator is hoisted to the centrifuge basket for installation and fixation. The model box is composed of a steel frame 2 and a transparent glass observation window 3, the steel frame 2 is a cubic frame, and at least one transparent glass observation window 3 is set on the four sides of the steel frame 2; the external size of the model box 1 is 600mm×400mm×500mm ( length x width x height). In order to reduce deformation under high stress, the steel frame is made of high carbon steel, and the glass is made of thickened tempered glass. According to the bolt hole position of the centrifuge basket, set screw holes at the corresponding positions at the bottom of the model box. In order to closely combine the model box with the dynamic tamping simula...

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Abstract

The invention belongs to the technical field of rock-soil centrifuges and provides a centrifuge test forced tamping simulation auxiliary test device. The device is mainly composed of a device pedestal, a model box, a displacement system, a tamping system and a real-time monitoring system. The forced tamping simulation auxiliary test device is capable of realizing shutdown hand-operated adjustment in horizontal longitudinal and horizontal transverse directions and controllable lifting in a vertical centrifugal operation process. Based on the combination of a strong magnet and an organic glass sleeve, complex simulation actions such as miniature tamping hammer free falling, hoisting and repeated tamping, light hammering high tamping and heavy hamming low tamping are realized; in addition, combined with a centrifuge device, an image system and a sensor system provided by a centrifugation laboratory, the forced tamping simulation auxiliary test device is capable of simulating a forced tamping construction method, revealing the mechanism of the forced tamping method and optimizing a construction scheme.

Description

technical field [0001] The invention belongs to the technical field of rock-soil centrifuges, and in particular relates to a dynamic tamping simulation auxiliary test device for centrifuge tests. Background technique [0002] The dynamic compaction method, also known as the dynamic consolidation method or the dynamic compaction method, is an effective foundation treatment scheme. This method is to repeatedly lift the weight to a high place and then use the automatic decoupling device to make it fall freely, giving the foundation a solid foundation. Ramping with powerful impact energy can improve the strength of foundation soil, reduce compressibility, eliminate collapsibility, improve anti-vibration liquefaction ability, improve uniformity of soil layer, and reduce uneven settlement. The dynamic compaction method has been widely used in engineering practice. Scholars at home and abroad have done a lot of research on the dynamic compaction method, but the practice of the dyn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/00
CPCG01D21/00
Inventor 冯世进杜风雷张晓磊毛健智
Owner TONGJI UNIV
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