Open AccessResearch on the Key Technology of Embedded Nylon Casing in Tunnel by Mining Method
Author(s) -
Ming Ke
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1676/1/012007
Subject(s) - casing , structural engineering , engineering , mechanical engineering
The embedded nylon sleeve is a technology of embedding reinforced nylon sleeve in the concrete structure to install and fix the mechanical and electrical equipment system. This paper takes the first phase of Urumqi Metro Line 2 as an example, it introduces the design scheme of embedded nylon casing, and analyzes the stress state of the structure under the condition of embedded nylon casing and no embedded through numerical simulation. The theoretical calculation and pull-out test of nylon sleeve are carried out, It is concluded that the pull-out bearing capacity of the embedded nylon sleeve can reach 50kN, which can meet the requirements of later equipment installation. The successful application of this technology, It breaks through the technology of using expansion bolt to fix the equipment installation and reduces the impact of later installation on civil structure, Therefore, it is a great significance to promote the application in urban rail transit.