Laboratory research of resin full-length anchoring bolts dimension optimizationChinese Full Text
LIN Jian;REN Shuo;YANG Jing-he;Coal Mining and Design Department,Tiandi Science and Technology Co. ,Ltd.;
Abstract: Bolt full-length prestressed anchor method is an effective means to solve support problem of complex and difficult roadway,but the difficulty of construction,has been restricting its application and promotion. This paper was committed to solve the difficult problem of coal mine roadway full-length anchoring through optimized anchor shape,under the premise of the guarantee of anchor performance. The paper used laboratory testing,researched on the relationship between the bolt shape and anchorage bolt performance and installation resistance. Optimized bolt profile height is reduced from 1. 46 mm to 1. 00 mm,bolt profile spacing is increased from 11. 05 mm to 33. 15 mm,bolt profile with staggered arrangement mode. After this improvement,the bolt drawing force than the original increased by7. 7% when the pull-out test of the bolt is at 125 mm; Installation process is reduced by about 40% than before optimization; the thrust to install bolt is about 50% of the original,with maximum of 0. 73 kN.
Keywords：
full-length anchor; bolt profile spacing; bolt profile height; drawing force; installation resistance;
- DOI：
10.13225/j.cnki.jccs.2013.0966
- Series：
- Subject：
- Classification Code：
TD353.6
- Mobile Reading
Read on your phone instantly
Step 1Scan QR Codes
"Mobile CNKI-CNKI Express" App
Step 2Open“CNKI Express”
and click the scan icon in the upper left corner of the homepage.
Step 3
Scan QR Codes
Read this article on your phone.
- HTML
- CAJ Download
- PDF Download
Download the mobile appuse the app to scan this coderead the article.
Tips: Please download CAJViewer to view CAJ format full text.
Download: 602 Page: 1009-1015 Pagecount: 7 Size: 2414K
Citation Network
Related Literature
- Similar Article
- Reader Recommendation
- Associated Author