The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
Apr. 10, 2014
China Shenhua Energy Company Limited, Beijing, CN;
Dazhao Gu, Beijing, CN;
Quansheng Li, Beijing, CN;
Sushe Chen, Beijing, CN;
Zhiguo Cao, Beijing, CN;
CHINA SHENHUA ENERGY COMPANY LIMITED, Beijing, CN;
Abstract
The present disclosure provides an artificial dam of a distributed coal mine underground reservoir and its constructing method. The artificial dam comprises a support layer (), an anti-seepage layer (), and a concrete structure layer () that are successively formed in an auxiliary roadway () from inside to outside, the concrete structure layer () being embedded into a security coal pillar () and/or surrounding rock () around the auxiliary roadway (). Because the concrete structure layer () is embedded into the security coal pillar () and/or the surrounding rock () around the auxiliary roadway (), the artificial dam is combined to the security coal pillar () to together form a dam for an underground reservoir. Due to multi-layer design, anti-seepage performance and structural strength of the dam can meet the water storage requirements of the underground reservoir.