- CSCD核心中文核心科技核心
- RCCSE(A+)公路运输高质量期刊T1
- Ei CompendexScopusWJCI
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(1. 国网新源集团有限公司, 北京 100161; 2. 中铁工程装备集团有限公司,河南 郑州 450016; 3. 河南洛宁抽水蓄能有限公司, 河南 洛阳 471700)
网络出版日期: 2023-12-08
Current Developments and Prospects of Mechanized Tunnel Excavation for Pumped Storage Power Plants in China
Online published: 2023-12-08
张学清 , 贾连辉 , 张兴彬 , 李超杰 . 我国抽水蓄能电站隧洞开挖机械化施工发展现状及展望[J]. 隧道建设, 2023 , 43(11) : 1811 -1820 . DOI: 10.3973/j.issn.2096-4498.2023.11.001
Herein, the current development status of mechanized tunnel excavation is summarized based on analyzing typical tunnel projects in a pumped storage power plant(PSPP) constructed by tunneling machinery. It is found that: (1) The modern drill and blast machinery, such as drill jumbos, are commonly used. (2) Roadheader is in trail application. (3) The fullsection hardrock tunnel boring machines(TBMs) have been successfully verified for their feasibility and are promoted for use in small diameter tunnels. (4) Large diameter TBMs have completed tunnel excavation tests. (5) aise boring machines are widely used in inclined and vertical shafts. (6) The feasibility of shaft boring machines has been validated. (7) Inclined shaft TBMs are on their way for use in excavation. The current problems in the mechanization of PSPP tunnel excavation are revealed; the following causes are analyzed: high construction cost and difficulty in popularizing, weak universality and the lack of application cases for some new mechanical equipment, hardtoreplace traditional systems and conservative concepts, insufficient equipment operators, and low overall quality of operators. Based on the current technical level and market status, it is proposed that tunneling machinery used in PSPPs will certainly be developed toward electrification, automation, and intelligence, and the use of applied TBMs and shaft boring machines will be further promoted. Moreover, more tunneling machinery will be studied and developed, with the aim to promote the advancement of tunneling technology and mechanization level of PSPPs in China.
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