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Self-sinking circular foundation pit excavation simulation device

A simulation device and technology for foundation pits, which are applied in the field of self-sinking circular foundation pit excavation simulation devices, can solve problems such as the influence of construction accuracy errors of deep foundation pits, and achieve the effect of avoiding direct downward movement.

Active Publication Date: 2020-05-19
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a self-sinking circular foundation pit excavation simulation device in order to overcome the defect that the construction accuracy of deep foundation pits is greatly affected by errors in the above-mentioned prior art

Method used

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  • Self-sinking circular foundation pit excavation simulation device
  • Self-sinking circular foundation pit excavation simulation device
  • Self-sinking circular foundation pit excavation simulation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Place the soil 7 that needs to be simulated in the model box body 1, and press the subsidence control ring 4 to the bottom of the model box body in the form of the steel rod 1 inside the ring, and the subsequent subsidence control ring 4 follows the first The trajectories of the sinking control rings 4 are placed sequentially, and the fixing holes 5 of adjacent sinking control rings 4 need to be arranged in a staggered manner. The bidirectional motor 2 is nested on the steel rod 1, and the soil cutting blade 3 is placed in the fixed hole 5 of the sinking control ring 4 at the top, and the bidirectional motor 2 is controlled by the controller to drive the soil cutting blade 3 to rotate. When the soil cutting blade approaches the fixing hole 5 of the sinking control ring 4 of the next layer, it rotates in the opposite direction, and when it passes the fixing hole 5 of the sinking control ring 4 of the next layer in the reverse direction, the soil cutting blade 3 moves down...

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Abstract

The invention relates to a self-sinking circular foundation pit excavation simulation device. Characterized in that it is characterized in that it comprises, the device comprises a model box filled with a soil body (7), the model box comprises a model box body (6), a steel rod (1), a bidirectional motor (2), a controller and a plurality of sinking control rings (4), the bidirectional motor (2) isconnected to a controller, the steel rod (1) is welded to the bottom of the model box body (6), the bidirectional motor (2) is in sliding connection with the steel rod (1), a soil cutting blade (3) isarranged on the bidirectional motor (2), a fixing hole (5) is formed in the sinking control ring (4), and the soil cutting blade (3) is placed in the fixing hole (5). Compared with the prior art, themethod has the advantages that the stability of the fixed motion trail is high, and the error influence is reduced.

Description

technical field [0001] The invention relates to the field of underground construction, in particular to a self-sinking circular foundation pit excavation simulation device. Background technique [0002] With the accelerated development of my country's urbanization process, the contradiction between the growing demand for urban space and limited land resources has become increasingly prominent, and the development and utilization of urban underground space has become one of the key points of current urban infrastructure construction. Zhongzheng has more and more deep foundation pit projects. Therefore, there are two issues in the construction of deep foundation pits that are highly valued by the geotechnical engineering community: one is to economically and effectively control the movement of surrounding strata caused by the construction of deep foundation pits while ensuring the safe construction of foundation pits, and to protect adjacent buildings. The safety of structures...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 木林隆林剑鸿黄茂松钱建固
Owner TONGJI UNIV
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