Model test system for sandy soil liquefaction and flowing

A model test, sand and soil technology, applied in teaching models, educational appliances, instruments, etc., can solve the problems of non-discovery, blindness, lack, etc.

Inactive Publication Date: 2011-04-20
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, there is still a lack of practical and effective analysis methods at home and abroad, and the analysis of such problems is usually based on engineering experience estimation, which has great blindness
In order to make up for the limitati

Method used

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  • Model test system for sandy soil liquefaction and flowing
  • Model test system for sandy soil liquefaction and flowing

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Embodiment

[0017] A model test system for sand liquefaction flow, its structure is as follows figure 1 As shown, the system includes a motor 1, a worm reducer 2, a slider crank mechanism 3, a base 4, a screw support 5, an inner connection box 6, a model box 7, a hole pressure sensor 8, an inner connection box baffle 9, a force measuring Baffle plate 10, digital camera 11, dynamic strain acquisition instrument 12 and computer 13, motor 1 is connected with worm reducer 2, worm reducer 2 is connected with crank slider mechanism 3 through a belt, and one end of crank slider mechanism 3 is connected with base 4 , a directional guide rail is installed under the base 4, and the pulley of the worm reducer 2 has three kinds of pitch circle diameters, which can realize three speeds of 60r / min, 120r / min or 180r / min at the crank end, so that the base 4 can realize 1Hz, 2Hz or The vibration frequency is 3Hz. At the same time, the crank radius is designed to be adjustable. The adjustment range is 20-7...

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Abstract

The invention relates to a model test system for sandy soil liquefaction and flowing, which comprises a motor, a reducer, a crank block mechanism, a base, a screw bracket, an internal connection box, a model box, a hole pressure sensor, an internal connection box baffle plate, a force measurement baffle plate, a digital camera, a dynamic strain acquirer and a computer, wherein the motor is connected with the reducer; the crank block mechanism is connected with the reducer and the base; the screw bracket is arranged on the base; the internal connection box is arranged on the screw bracket; the model box is connected with the internal connection box; the hole pressure sensor is arranged in the internal connection box; the internal connection box baffle plate is arranged between the internal connection box and the model box; a force measurement baffle plate is arranged on the rear part of the model box; the digital camera is arranged on one side of the base; and the dynamic strain acquirer is connected with the digital camera and the computer. Compared with the prior art, the system makes it convenient to observe sandy soil liquefaction and acquire the flow slide form of the vibration-liquefied saturated sandy soil and parameters including soil body lateral flow rate and flow impact force after flow slide and the like.

Description

technical field [0001] The invention relates to a model test system, in particular to a model test system for sand liquefaction flow. Background technique [0002] With the rapid development of urban construction and the vigorous development of transportation, ports, docks and other industries, the problems of soil lateral displacement and sand liquefaction flow have been common in engineering practice in recent years. How to analyze the bearing properties of sand liquefaction flow has been It has become a difficult problem to be solved urgently in the field of civil engineering construction. However, there is still a lack of practical and effective analysis methods at home and abroad. The analysis of such problems is usually based on engineering experience estimation, which is very blind. In order to make up for the limitations of theoretical analysis, for important projects, it is necessary to conduct analysis in combination with indoor model tests. The key technology is ...

Claims

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Application Information

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IPC IPC(8): G09B23/40
Inventor 黄雨李光辉郑虎金晨
Owner TONGJI UNIV
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