Title:
DRAINAGE CHUTE AND DRAINAGE CULVERT COMBINED PLUGGING AND DREDGING METHOD FOR TAILINGS POND
Document Type and Number:
WIPO Patent Application WO/2022/100168
Kind Code:
A1
Abstract:
Disclosed is a drainage chute and drainage culvert combined plugging and dredging method for a tailings pond. The method comprises: 1) plugging a drainage chute, involving: respectively backfilling, from bottom to top, the drainage chute with block stone (3), rubble (4) and peastone gravel (5) from an upstream drainage chute water inlet, and arranging an integrated prefabricated top cover plate (6) at the drainage chute water inlet; and 2) plugging a drainage culvert, involving: arranging, from a drainage culvert outlet to upstream, an inverted filter, which is not less than 5 m in length and is respectively composed of block stones, rubble and peastone gravel, pre-burying, in the drainage culvert and before the plugging of the drainage culvert, a certain number of PE drainage and seepage pipes for guiding and draining water seepage in the drainage chute and the drainage culvert, and arranging a closed concrete retaining wall at the drainage culvert outlet. In the present invention, a drainage chute and a drainage culvert are plugged on the basis of "plugging" and "dredging" principles. The method is simple, has strong operability, needs little engineering and has a low engineering cost, and the safety hazards and risks caused by a plugging failure of a flood drainage system can be effectively eliminated or reduced.
Inventors:
XU CHUANHUA (CN)
WANG BIN (CN)
TANG KAI (CN)
WU XIAOGANG (CN)
QIN KE (CN)
HOU YIFENG (CN)
GUO GUANGTAO (CN)
ZHAO JUN (CN)
NI ZHIWEI (CN)
DAI YONGXIN (CN)
ZHOU YUXIN (CN)
ZHAO MENGSHENG (CN)
WANG BIN (CN)
TANG KAI (CN)
WU XIAOGANG (CN)
QIN KE (CN)
HOU YIFENG (CN)
GUO GUANGTAO (CN)
ZHAO JUN (CN)
NI ZHIWEI (CN)
DAI YONGXIN (CN)
ZHOU YUXIN (CN)
ZHAO MENGSHENG (CN)
Application Number:
PCT/CN2021/111874
Publication Date:
May 19, 2022
Filing Date:
August 10, 2021
Export Citation:
Assignee:
SINOSTEEL MAANSHAN GENERAL INSTITUTE OF MINING RES CO LTD (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZ (CN)
ENGINEERING INVESTIG & DESIGN INSTITUTE OF SINOSTEEL MIMR CO LTD (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZ (CN)
ENGINEERING INVESTIG & DESIGN INSTITUTE OF SINOSTEEL MIMR CO LTD (CN)
International Classes:
E03F3/04
Foreign References:
| CN112411708A | 2021-02-26 | |||
| CN103741702A | 2014-04-23 | |||
| CN201162271Y | 2008-12-10 | |||
| CN101672025A | 2010-03-17 | |||
| CA2511162A1 | 2005-12-30 | |||
| US6953528B2 | 2005-10-11 |
Attorney, Agent or Firm:
MA'ANSHAN CITY JINQIAO PATENT AGENT LTD. (CN)
Download PDF: