Research on Casing Rotator and Full Casing Construction Technology
详细信息
- 责任者：Song Zhibin (China University of Geosciences ; Beijing 100083 ; China) ; Feng Qizeng
- 刊名：Exploration Engineering
- 出版年：2013
- 卷期：40(9)
- 关键词：工程钻机 ; engineering drill
- 页码：p.29-36
- 图表：6 illus., 1 table, 10 refs.
- 分类号：2000
- issnNo：ISSN1672-7428
- isbnNo：CN11-5063/TD
摘要
The paper summarized the research actuality and application fields both in China and abroad. The design structure,specification and key techniques of QHZ- 2000 casing rotator are elaborated. The paper analyzes the structure principle and the application characteristics of casing string,hammer grab and drilling tools for underground obstacles removal;and also summarizes the construction process,mechanism and applicable scope of full casing cast-in-place pile,underground obstacles removal and pile extraction in full casing. This study fills the gap of independent research and development of casing rotator in China; it is environmental,universal and safe piling equipment and a new foundation drilling method with no mud used in urban construction and foundation works.