2017-02-21_REVISION - M1988112 ‎(3)‎

• Permit No: M1988112
• IBM Index Class Name: Revision
• Doc Date: 2/21/2017
• Doc Name: Request for Technical Revision
• From: Battle Mountain Resources, Inc.
• To: DRMS
• Type & Sequence: TR34
• Email Name: WHE
• Media Type: D
• Archive: No

TABLE OF CONTENTS
1.0 INTRODUCTION..............................................................................................................1
1.1
Project Background..................................................................................................1
1.2
Project Goals and Design Criteria............................................................................3
1.3
Purpose and Scope...................................................................................................4
2.0 DATA
COLLECTION......................................................................................................4
2.1
Mapping...................................................................................................................4
2.2
Geotechnical Investigations.....................................................................................5
4.2.2 Wall Loading Conditions.............................................................•.......................
25
2.2.1 Scope of Field Investigation..................................................................................
5
4.2.4 Structural Analysis...............................................................................................
2.2.2 Subsurface Conditions Observed...........................................................................
5
2.2.3 Laboratory Testing.................................................................................................
6
2.2.4 Geotechnical Analyses and Design Recommendations .........................................
7
2.3
Hydrologic Investigations......................................................................................10
3.0 HYDRAULICS DESIGN................................................................................................12
3.1
General Design Basis and Description..................................................................12
3.2
Drop Structure Hydraulics Design.........................................................................12
3.2.1 HEC -RAS System Modeling...............................................................................
12
3.2.2 Approach Section.................................................................................................18
3.2.3 Chute....................................................................................................................18
3.2.4 Stilling Basin.......................................................................................................
19
3.2.5 Discharge Channel Design...................................................................................
22
3.3
South Diversion Ditch Channel Hydraulics Design..............................................23
4.0 DROP STRUCTURE STRUCTURAL DESIGN..........................................................24
4.1 Lateral Wall Loading.............................................................................................24
4.1.1 Lateral Earth Pressures........................................................................................
24
4.1.2 Vehicle Loading...................................................................................................
24
4.2 Considerations for Structural Analysis..................................................................25
4.2.1 Assumptions........................................................................................................
25
4.2.2 Wall Loading Conditions.............................................................•.......................
25
4.2.3 Spillway Slab Loads............................................................................................
25
4.2.4 Structural Analysis...............................................................................................
25
5.0 REFERENCES.................................................................................................................27
San Luis Project - South Diversion Ditch Drop Structure - Final Design Report