NR TWI 3B013
How to Manage Subsidence
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| Organization: | NR |
| Publication Date: | 1 March 2005 |
| Status: | active |
| Page Count: | 6 |
scope:
Introduction
This Track Work Instruction covers how to manage the subsidence effects caused by mining, mineral extraction, engineering works, geological collapse or formation changes.
Settlement due to planned Engineering work to accommodate Outside Party projects - e.g. Thrust bores - are excluded from this TWI.
See also separate instructions:
TWI 3G050 How to manage track inspections
TWI 3G051 How to arrange routine inspections
Document History
NR TWI 3B013
March 1, 2005
How to Manage Subsidence
Introduction
This Track Work Instruction covers how to manage the subsidence effects caused by mining, mineral extraction, engineering works, geological collapse or formation changes.
Settlement...