05 barrett - case studies in shallow landslide
Post on 06-Jul-2018
222 Views
Preview:
TRANSCRIPT
-
8/17/2019 05 Barrett - Case studies in shallow landslide
1/42
10/27/
Case Studies in Shallow Landslide
Repair
in
Sensitive
Coastal
and
Riparian Areas
Colby
Barrett,
Soil
Nail
Launcher,
Inc.
Outline• Technology
overview
– Launched
Soil
Nails
– Hollow Core Injection Anchors
– Surface
Treatments
• Structural Wire Mesh
• Shotcrete
• Case
Studies – Lewiston,
MT
Missile
Base
(WFLHD)
– Crescent
City,
CA
(Del
Norte
County)
– Highway
1
Near
Pescadero,
CA
(CalTrans)
– Lake
Tahoe
Bluff
Stabilization
(Private)
-
8/17/2019 05 Barrett - Case studies in shallow landslide
2/42
10/27/
Original vessel developed by the British during war time.
-
8/17/2019 05 Barrett - Case studies in shallow landslide
3/42
10/27/
A machined tip is welded to the end of the nail, then plastic collars are
attached.
The air is built-up and the rod is launched at approx. 350 kph/250 mph.
-
8/17/2019 05 Barrett - Case studies in shallow landslide
4/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
5/42
10/27/
Landslide in dry conditions, FOS>1.0
Perched
Water
Table
Due
to
Meteoric
Infiltration, FOS>1.0
-
8/17/2019 05 Barrett - Case studies in shallow landslide
6/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
7/42
10/27/
Traditional Soil NailSuperNail®
Grout
Galvanization
Steel
Epoxy
-
8/17/2019 05 Barrett - Case studies in shallow landslide
8/42
10/27/
Lake Lida, MN
Sand
e0=0.74
N-Values = 4-8Unit Weight = 120 pcf
Average Nail Penetration = 19-ft
Pullout
Results
Average bond = 3.1 psi (ungrouted); 11.5 psi
(grouted)
-
8/17/2019 05 Barrett - Case studies in shallow landslide
9/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
10/42
10/27/
SURFACE TREATMENTS
-
8/17/2019 05 Barrett - Case studies in shallow landslide
11/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
12/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
13/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
14/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
15/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
16/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
17/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
18/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
19/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
20/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
21/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
22/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
23/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
24/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
25/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
26/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
27/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
28/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
29/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
30/42
10/27/
2
8
-
8/17/2019 05 Barrett - Case studies in shallow landslide
31/42
10/27/
5
6
-
8/17/2019 05 Barrett - Case studies in shallow landslide
32/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
33/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
34/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
35/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
36/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
37/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
38/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
39/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
40/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
41/42
10/27/
-
8/17/2019 05 Barrett - Case studies in shallow landslide
42/42
10/27/
top related