Title:
INTELLIGENT SUBGRADE HUMIDITY CONTROL AND DRAINAGE DEVICE BASED ON MODIFIED WATER-ABSORBENT RESIN, AND USAGE METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/093813
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of subgrade humidity control and drainage, and particularly relates to an intelligent subgrade humidity control and drainage device based on a modified water-absorbent resin, and a usage method therefor. Aiming to solve the problem whereby an existing subgrade cannot absorb and discharge moisture in the subgrade and is thus prone to causing disasters, the following solution is put forward: the device comprises a foundation, wherein an improved subgrade layer is laid on the top of the foundation; a pavement layer is laid on the top of the improved subgrade layer; a first drainage device is arranged between the foundation and the improved subgrade layer; a second drainage device is arranged between the improved subgrade layer and the pavement layer; the drainage device comprises the following components: a double-layer high-suction geotextile, 4-10% of a modified water-absorbent resin, a flocculent filler and a humidity-sensitive material; and the improved subgrade layer comprises the following components in percentages by weight: 0.4-1% of a polymer hydrophobic agent. The present invention is convenient to operate, and a subgrade internal drainage device capable of draining water by means of a high suction force difference is prepared in cooperation with a modified water-absorbent resin.
Inventors:
CUI XINZHUANG (CN)
LI JIN (CN)
JIN QING (CN)
ZUO SHEN (CN)
XIONG DALU (CN)
ZHANG XIAONING (CN)
JIANG PENG (CN)
SUN HAO (CN)
CHENG DEGANG (CN)
LU ZHONGMEI (CN)
LI JIN (CN)
JIN QING (CN)
ZUO SHEN (CN)
XIONG DALU (CN)
ZHANG XIAONING (CN)
JIANG PENG (CN)
SUN HAO (CN)
CHENG DEGANG (CN)
LU ZHONGMEI (CN)
Application Number:
PCT/CN2022/134143
Publication Date:
June 01, 2023
Filing Date:
November 24, 2022
Export Citation:
Assignee:
UNIV SHANDONG JIAOTONG (CN)
UNIV SHANDONG (CN)
UNIV CHONGQING (CN)
JINAN JINYUE HIGHWAY ENG CO LTD (CN)
UNIV SHANDONG (CN)
UNIV CHONGQING (CN)
JINAN JINYUE HIGHWAY ENG CO LTD (CN)
International Classes:
E01C3/00
Foreign References:
| CN110904760A | 2020-03-24 | |||
| CN108797250A | 2018-11-13 | |||
| CN111439950A | 2020-07-24 | |||
| CN102849999A | 2013-01-02 | |||
| CN101831855A | 2010-09-15 | |||
| CN207552853U | 2018-06-29 | |||
| JP2001011925A | 2001-01-16 | |||
| CN114108406A | 2022-03-01 |
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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