• 中国科学引文数据库(CSCD)来源期刊
  • 中文核心期刊中文科技核心期刊
  • Scopus RCCSE中国核心学术期刊
  • 美国EBSCO数据库 俄罗斯《文摘杂志》
  • 《日本科学技术振兴机构数据库(中国)》
二维码

隧道建设(中英文) ›› 2013, Vol. 33 ›› Issue (4): 331-335.DOI: 10.3973/j.issn.1672-741X.2013.04.015

• 施工机械 • 上一篇    

砂卵石地层气垫式泥水盾构的优化

杨爱军1, 张宁川1, 王杜娟1, 曾垂刚2   

  1. (1.中铁隧道装备制造有限公司, 河南郑州 450016; 2.中铁隧道集团股份有限公司, 河南郑州  450003)
  • 收稿日期:2012-09-14 修回日期:2013-01-24 出版日期:2013-04-20 发布日期:2013-04-12
  • 作者简介:杨爱军(1980—),男,甘肃天水人,2004年毕业于中南大学工程机械专业,本科,工程师,主要从事盾构机的设计和研究工作。

Optimization of Aircushiontype Slurry Shield to Cope with Sandy Cobble Strata

YANG Aijun1, ZHANG Ningchuan1, WANG Dujuan1, ZENG Chuigang2   

  1. (1. China Railway Tunneling Equipment Co., Ltd., Zhengzhou 450016, Henan, China; 2. China Railway Tunnel Stock Co., Ltd., Zhengzhou 450003, Henan, China)
  • Received:2012-09-14 Revised:2013-01-24 Online:2013-04-20 Published:2013-04-12

摘要:

为解决气垫式泥水盾构在砂卵石地层中存在卵石堆积泥水仓和气垫仓底部、造成碎石机频繁损坏和泥浆管路堵塞等问题,通过对底部堆积、堵塞管路、破碎机频繁损坏的原因进行分析,认为造成堆积和堵塞的原因主要是泥浆在气垫仓和泥水仓流速偏低,不能及时带走碴土,从而造成碎石机频繁损坏和仓底底部堵塞。通过对这些问题的研究讨论,提出通过增加底部、刀盘冲刷以及主机段泥浆循环的方案来解决底部堆积、堵塞管路的问题,同时改变碎石机的结构来解决其寿命短的问题。

关键词: 成都地铁, 砂卵石地层, 主机段泥浆循环, 破碎机, 泥水仓, 气垫仓, 泥水盾构

Abstract:

When aircushiontype slurry shield machines are used in sandy cobble strata, problems, such as cobble accumulation at the bottoms of slurry chambers and air cushion chambers, frequent damage of stone crushers and blocking of slurry circuits, often occur. In this paper, the main causes for the mentioned problems are analyzed. The analysis shows that the main cause for these problems is that the flowing of the slurry in the slurry chambers and air cushion chambers is too slow. Countermeasures, such as adding flushing system for the bottoms of the slurry chambers and air cushion chambers and for the cutter heads, improving the slurry cycling of the main shield bodies and optimizing the structures of the stone crushers, are proposed. 

Key words: Chengdu Metro, sandy cobble strata, slurry cycling, stone crusher, slurry chamber, air cushion chamber, slurry shield