Title:
DEVICE FOR INDOOR TEST OF CLOGGING CHARACTERISTICS OF GRAVEL PILE DRAINAGE ANTI-LIQUEFACTION CHANNEL
Document Type and Number:
WIPO Patent Application WO/2023/040492
Kind Code:
A1
Abstract:
A device for an indoor test of clogging characteristics of a gravel pile drainage anti-liquefaction channel. The device comprises: a soil sample chamber (1), which has a transparent cylinder structure with a closed bottom, wherein scales are provided on a side wall of the soil sample chamber to facilitate observation of movement and clogging states of a soil sample in the soil sample chamber (1); a vertical loading system, which comprises a reaction frame (2) and a pressure-applying mechanism (3), wherein the soil sample chamber (1) is arranged in the reaction frame (2), and the pressure-applying mechanism (3) is arranged on the reaction frame (2) and is used for applying a vertical pressure to the soil sample in the soil sample chamber (1); a pore pressure loading system, which is in communication with a water outlet (12) formed at the top of the soil sample chamber (1) and a water inlet (11) formed at the bottom of the soil sample chamber (1), and which is used for providing different pore pressures when the soil sample chamber (1) is subjected to permeability and clogging tests; and a power system, which provides a power source for the vertical loading system and the pore pressure loading system. The device has a simple structure and is convenient to operate, can observe the clogging morphology of a gravel pile drainage anti-liquefaction channel under the action of different confining pressures and pore pressure ratios, and can test a permeability coefficient after clogging is stabilized.
Inventors:
CHEN PINGSHAN (CN)
LIANG XIAOCONG (CN)
QIU QINGCHANG (CN)
ZHOU HONGXING (CN)
WANG JING (CN)
WANG DEYONG (CN)
ZHANG JINGHONG (CN)
LIANG XIAOCONG (CN)
QIU QINGCHANG (CN)
ZHOU HONGXING (CN)
WANG JING (CN)
WANG DEYONG (CN)
ZHANG JINGHONG (CN)
Application Number:
PCT/CN2022/109720
Publication Date:
March 23, 2023
Filing Date:
August 02, 2022
Export Citation:
Assignee:
CCCC FOURTH HARBOUR ENG CO LTD (CN)
International Classes:
G01N15/08
Foreign References:
| CN113884423A | 2022-01-04 | |||
| CN113218841A | 2021-08-06 | |||
| CN104749081A | 2015-07-01 | |||
| CN104880398A | 2015-09-02 | |||
| CN108181220A | 2018-06-19 | |||
| CN208140705U | 2018-11-23 | |||
| US5265461A | 1993-11-30 |
Attorney, Agent or Firm:
GUANGZHOU SINO PATENT & TRADEMARK AGENT CO., LTD. (CN)
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