2012-05-29_REVISION - C1980007

• Permit No: C1980007
• IBM Index Class Name: REVISION
• Doc Date: 5/29/2012
• Doc Name: Refuse Pile Expansion East Haul Road Slide Repair Documentation, Slope Stability Monitoring Instrum
• From: BARR Resourceful Naturally
• To: DRMS
• Type & Sequence: TR128
• Email Name: JRS
• Email Name: DIH
• Media Type: D
• Archive: No

Refuse Pile Expansion East
TR -128
Haul Road Slide Repair Documentation, Slope Stability Monitoring
Instrumentation, and Drainage Revisions
May 2012
Table of Contents
1.0 Introduction and Background 1
1.1 Background 1
1.2 Report Organization 2
2.0 Haul Road HR -1 Slump 3
2.1 Design 3
2.1.1 Geometry 4
2.1.2 Groundwater 4
2.1.3 Modeling Parameters 5
2.1.4 Modeling 6
2.1.5 Results 6
2.1.5.1 Seepage Analysis 6
2.1.5.2 Stability Analysis 6
2.2 Repair Construction 7
2.2.1 Identified Seepage Locations 7
2.2.2 Construction Methodology 7
2.3 Construction Observation 9
2.4 Final Conditions 9
2.4.1 Geometry 9
2.4.2 Modeling 9
2.4.3 Results 10
2.4.3.1 Seepage Analysis 10
2.4.3.2 Stability Analysis 10
2.4.4 Recommendations 11
3.0 Slope Monitoring Instrumentation 12
3.1 Haul Road HR -1 Area 12
3.1.1. Survey Mirrors 12
3.1.2. Inclinometers 12
3.1.3. Piezometers 13
3.1.4 Monitoring Schedule 13
3.2 RPEE Buttress and Refuse Pile Area 13