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Indoor foundation soil preparation device capable of keeping on-site stress state and preparation method thereof

A technology of stress state and preparation device, which is applied in the field of geotechnical engineering and can solve the problems of unrepresentative and inability to achieve the consistency of stress state and site.

Pending Publication Date: 2021-08-27
CHINA THREE GORGES CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, after the soft clay foundation with the required strength is generally prepared, the preload is removed to carry out subsequent indoor model tests. Therefore, the preparation of the soft clay foundation in the existing technology can only ensure that its strength is consistent with that of the soft clay foundation at a specific depth on site, and cannot achieve The stress state is consistent with the site, so the soft clay foundation used in the indoor test model test cannot represent the real site foundation soil

Method used

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  • Indoor foundation soil preparation device capable of keeping on-site stress state and preparation method thereof
  • Indoor foundation soil preparation device capable of keeping on-site stress state and preparation method thereof
  • Indoor foundation soil preparation device capable of keeping on-site stress state and preparation method thereof

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Embodiment Construction

[0027] Such as Figure 1~3 As shown, an indoor foundation soil preparation device capable of maintaining the stress state on site includes a support 1. In this embodiment, the support 1 includes a vertical support leg 101 and an oblique support leg 102, and the vertical support leg 101 and the oblique support leg 102 is connected by horizontal support bar 103. The included angle between the inclined support legs 102 and the vertical direction is 20°, which reduces the occupied space as much as possible while enhancing the structural stability. A crossbeam 2 is provided on the support 1 , specifically, the crossbeam 2 is arranged between two numerical support legs 101 .

[0028] The upper end of the bracket 1 is provided with a consolidation model box 3, the aspect ratio of the consolidation model box 3 is 3:1, and the longer length is sufficient for the foundation to be prepared for multiple tests at one time. The consolidation model box 3 is provided with a drain valve 4, a...

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Abstract

The invention provides an indoor foundation soil preparation device capable of keeping a field stress state and a preparation method thereof. The indoor foundation soil preparation device comprises a support, a cross beam is arranged on the support, a consolidation model box is arranged at the upper end of the support, a drainage valve is arranged on the consolidation model box, a consolidation pressing plate is arranged in the consolidation model box, and a plurality of test holes are formed in the consolidation pressing plate; the test holes are closed through a closing cover plate, the upper side of the consolidation pressing plate is connected with a force transmission plate through a load transmission frame, a loading mechanism is arranged below the consolidation model box and comprises a loading rod, one end of the loading rod is hinged to the cross beam, the other end of the loading rod is provided with a connecting rod, the lower end of the connecting rod is provided with a weight disc, and the force transmission plate is arranged below the loading rod. And a force transmission mechanism is arranged between the force transmission plate and the loading rod. According to the device and the preparation method, when the soft clay foundation with the required strength is prepared, the stress state consistent with the on-site foundation soil is maintained, and the soft clay foundation closer to the on-site real physical and mechanical state is prepared for carrying out an indoor model test.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering, and in particular relates to an indoor foundation soil preparation device capable of maintaining a stress state on site and a preparation method thereof. Background technique [0002] Soft clay foundations are widely distributed in my country's coastal areas. During the construction of offshore breakwaters, offshore wind power, oil and gas platforms, etc., it is essential to study the interaction between the above structure foundations and soft clay. The preparation of the soft clay foundation is the basis for the indoor model test of the interaction between the foundation of the above structures and the soil. [0003] The existing indoor soft clay foundation preparation device generally prepares the foundation soil for the test by applying a preload, and after the preparation of the foundation soil is completed, the preload is removed for use. On this basis, there are devices and technol...

Claims

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Application Information

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IPC IPC(8): G01N1/28E02D33/00
CPCG01N1/28G01N1/286E02D33/00
Inventor 代加林张炜罗仑博李洲于光明郭小青
Owner CHINA THREE GORGES CORPORATION
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