|
|
|
|
|
Background - Shelley |
|
Site Conditions - Shelley |
|
Modelling of Slope Stability |
|
and Assumed Parameters - Bob |
|
Stump Pulling Exercise to |
|
Measure Stump Resistance - Bob |
|
Instrumented Loading on Road - Bob |
|
Stability Analysis - Bob |
|
Conclusion/Recommendations - Shelley |
|
|
|
|
|
Forest Practices Code Act (1995) |
|
Section 5 of FRR: slopes >60% must be
inspected by a QRP |
|
Section 8 of FRR: measures must be prepared by a
QRP to maintain slope stability if the road crosses an area of moderate or
high likelihood of landslides as determined by a TSFA. |
|
|
|
|
|
|
Private Forest Land Regulation (2000) |
|
Section 6: |
|
Owner must ensure that roads, landings and
excavated trails are constructed and maintained or deactivated in a manner
that minimizes soil erosion and minimizes any increase in landslide
hazards. |
|
Owner must ensure that cutslopes and fillslopes
remain stable and are not subject to significant slumping or ravelling. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Measured the load imparted by a grapple yarder
during operations; |
|
Measured the pull-out resistance of stumps; |
|
Determined the most critical failure mechanism; |
|
Determined if loads are transferred to the
stump; |
|
Unable to establish a method of monitoring the
stump crib structure |
|
|
|
|
Viable construction method for temporary or
short-term roads (<3 years). |
|
Construction costs are considerably less than
full bench end haul. |
|
Site selection is important. |
|
There are some uncertainties in the analysis -
therefore some conservation should be built into such applications. |
|
|
|
|
South Island Timberlands |
|
FERIC |
|
RST Instruments |
|
GeoWise Engineering Ltd. |
|
|
|
Notes