Sand rain-type filling device for geotechnical engineering model test

Abstract

The invention provides a sand rain-type filling device for a geotechnical engineering model test. The sand rain-type filling device comprises a hopper, a control panel, a hoisting and translation device, and a screen mesh. The screen mesh is arranged in the hopper. Sand for a geotechnical engineering model test is filled on the screen mesh. The bottom of the hopper is provided with the control panel for accurately controlling a sand filling rate and sand filling height. The top of the hopper is connected to the hoisting and translation device. The sand rain-type filling device is convenient for operation, has a low investment cost and a large one-step filling amount, effectively saves labor, has high integral strength, is sturdy and durable, and provides an accurate and efficient equipment basis for a sand filling process in a geotechnical engineering model test.

Description

technical field [0001] The invention relates to a geotechnical engineering indoor model test equipment, which belongs to the field of civil engineering underground engineering construction model tests, in particular to a sand rain device for geotechnical engineering model tests. Background technique [0002] Geotechnical engineering is an important branch of civil engineering, mainly involving underground engineering construction, which has the characteristics of closed construction environment, strong uncertainty of construction objects, and great losses in case of accidents. When studying the characteristics of geotechnical engineering and the impact of construction on the surrounding environment, only numerical simulation tests are not enough to reflect its complexity and solve key technical problems encountered in engineering. Therefore, model tests must be supplemented to complete the research for geotechnical engineering. [0003] In the model test, the parameters of ...

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Problems solved by technology

[0011] (1) Most filling devices can only move in one dimension, that is, they can only move horizontally or vertically, and cannot adjust the height of the sand drop and the length of the sand filling at the same time;

[0012] (2) The filling device either relies on a fixed perforated plate to control the amount of sand falling out, or only has a simple openable bottom plate, which cannot accurately adjust the amount of sand falling out;

[0013] (3) Most of the filling devices are fixed together with the model device, which can only be used for sand filling of a model device of a certain size, and the applicable model range is narrow, which is a waste of the equipment itself;

[0014] (4) The filling device is generally not equipped with a screen, and it is easy to mix coarse particles and other impurities when filling the sand, which will affect the quality of the sand;

[0015] (5) Most of the filling devices contain too many mechanical and electrical components and rotating parts, the structure is complex, the production cost is high, and it is easy to be damaged in the high-strength model sand filling operation

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