周宗青
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Patents
沿空留巷巷旁支护结构设计方法、支护结构及施工方法
Release Time:2021-06-17| Hits:
Title:沿空留巷巷旁支护结构设计方法、支护结构及施工方法
Institution:岩土与结构工程研究中心
Type of Patent:发明
Application Number:201911380862.0
Number of Inventors:3
Service Invention or Not:No
Application Date:2019-12-27
Publication Date:2021-06-01
Authorization Date:2021-06-01
Release Time:2021-06-17
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