Deformation Monitoring and Stability Analysis of Shaft Lining in Weakly Cemented Stratum
Joint Authors
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-26
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Shaft linings in thick weakly cemented stratum have the disadvantages of large deformation and repeated damage after repair.
Considering the typical geologic characteristics and the failure characteristics of shaft linings, we establish a multilayer automatic deformation monitoring system in this paper, and the monitoring system can realize the real-time, continuous, and long-term dynamic monitoring on shaft linings.
Based on the concrete strength failure criterion under biaxial compression and the analytical solution for spatially axisymmetric problem of thick-wall cylinders, the damage limit of the shaft lining in Xieqiao coal mine is obtained.
Then, we choose three sections as the test area according to the typical damage forms of shaft linings to carry out the monitoring scheme on the auxiliary shaft in Xieqiao coal mine.
The monitoring results show that the extreme value of the shaft lining deformation is 2.369 mm.
And the shaft lining located in the border between the floor aquifer and the bedrock generates the most severe deformation, which is about 89.4% of the deformation limit.
The shaft lining deformation increment fluctuates in certain range, which belongs to elastic deformation.
Finally, we inverse the stress state according to the deformation value of the shaft lining, and the obtained additional stress is found to be lower than the ultimate compressive strength.
Long-term project practice confirms that the deformation monitoring results can reflect the real stress condition of the shaft lining and that the monitoring system can realize the real-time dynamic evaluation for the status of the shaft lining.
American Psychological Association (APA)
Lyu, Xianzhou& Wang, Weiming. 2018. Deformation Monitoring and Stability Analysis of Shaft Lining in Weakly Cemented Stratum. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1116753
Modern Language Association (MLA)
Lyu, Xianzhou& Wang, Weiming. Deformation Monitoring and Stability Analysis of Shaft Lining in Weakly Cemented Stratum. Advances in Civil Engineering No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1116753
American Medical Association (AMA)
Lyu, Xianzhou& Wang, Weiming. Deformation Monitoring and Stability Analysis of Shaft Lining in Weakly Cemented Stratum. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1116753
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116753