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-•• THURBER ENGINEERING LTD.
February 5, 2015
Alberta Transportation 2nd Floor, Twin Atria Building 4999-98 Avenue Edmonton, Alberta T6B 2X3
Attention: Mr. Rocky Wang, P. Eng.
File: 15-16-282
HWY 621:02 PEMBINA RIVER BRIDGE (BF74969) INSTRUMENTATION MONITORING RESULTS- REPORT 14
Dear Sir:
This letter presents the instrumentation monitoring results carried out by Thurber Engineering Ltd. for the above noted project. This is the last set of instrumentation readings taken for this assignment.
1. OBSERVATIONS
1.1 Field Program and Instrumentation Status
Two slope inclinometers (SI13-1 and 8113-3), one standpipe piezometer (SP13-3), and four vibrating wire piezometers (VW13-1A, VW13-1 , VW13-2 and VW13-3) were read on January 19, 2015, by Mr. James Galipeau of Thurber Engineering Ltd. (Thurber). One strain gauge (SG13-2) and three tiltmeters (5038, 5041 , and 5042) were also monitored during the reading event. Slope inclinometers Sl1 and Sl14-1 and pneumatic piezometers PZ1 and PZ2 could not be read as the instruments were frozen. VW13-2 did not show an output on the readout and may have malfunctioned.
The Sis were read using a RST Digital Inclinometer probe with 2 ft. wheelbase and a RST Pocket PC readout. Inclinometer reading depths were defined as per cable markings with respect to the top of the inclinometer casing. The strain gauges were read using a RST Pocket PC readout. The vibrating wire piezometers were read using a GEO-KON GK-404 Digital VW data recorder device. The standpipe piezometer was read using a SINCO dipmeter.
2. INTERPRETATION
2.1 Zones of Movement
Zones of movement are summarized in Table 1 at the end of this report. This table also provides a historical account of the total movement, the depth of movement, and the maximum rate of movement that has occurred at this site since the initialization of the slope inclinometers.
4127 Roper Road, Edmonton, AB T6B 355 T: 780 4381460 F: 780 437 7125 thurbe r: ca
-•• THURBER
2.2 Interpretation of Monitoring Results
Slope inclinometer Sl13-1 showed no discernible movement since the December 17, 2014 reading. Sl13-3 showed a creep rate of movement of 4.9 mm/yr over 16.6 m to 20.3 m depth.
The water levels in pneumatic piezometers PZ1 and PZ2 could not be read as the instruments were frozen. The pneumatic piezometer readings are summarized in Table 2.
The ground water level recorded in standpipe piezometer SP13-3 decreased by 0.15 m, since the December 17, 2014 reading , to 2.26 m below ground surface. The standpipe piezometer reading is summarized in Table 3.
The ground water levels decreased in vibrating wire piezometers VW13-1 A, VW13-1 and VW13-3 by 0.11 m, 0.08 m, and 0.08 m, respectively, since the previous readings on December 17, 2014. VW13-2 did not show an output on the readout and may be damaged. The instrument status will need to be confirmed during the next reading event. The vibrating wire piezometer readings are summarized in Table 4.
Four strain gauges were installed on the east ends of the bridge girders to monitor the stresses on the bridge structure. One strain gauge (SG13-2) remains functioning while the other three were reported stolen on July 31 , 2014. After initial increases in stress was observed in the strain gauges during the installation of the sub-drains, the stress recorded on the girder appears to have decreased. The stresses recorded in the strain gauges since completion of the sub-drains appears to be related to thermal expansion and contraction of the bridge girders. A plot of the true load related strain for strain gauge SG13-2, up to January 19, 2015, is attached to the end of this letter.
Three biaxial tiltmeters were installed on the bridge piers on March 7, 2014 to monitor movement of the piers. The tiltmeters measure the rotation perpendicular (Axis A) and parallel (Axis B) to the pier. A plot of the change in rotation from installation date in the A and B axes is attached to the end of this letter.
The Sl and piezometer plots, as well as the instrumentation field monitoring sheets are provided at the end of this letter. The instrument locations are presented on Drawing No. 15-16-282-1 .
3. RECOMMENDATIONS
3.1 Future Work
The instruments should continue to be read by the GRMP geotechnical engineering consultant for this region twice per year.
Client: File: e·file :
Alberta Transportation 15-16-282 \\H\ 15\16-282 let - Edm
Date: February 5, 2015
Page 2 of 3
-•• THURBER
3.2 Instrumentation Repairs
No instrument repairs are required at this time.
4. CLOSURE We trust this letter meets with your present requirements. If you have any questions, please contact us at your convenience.
Yours truly, Thurber Engineering Ltd. Renate Clementine, Ph.D., P. Eng. Review Principal
Niels Rasmussen, P.Geo. Project Geologist /ric
Attachments: • Tables 1 to 4 • Drawing 15-16-282-1 • Slope Inclinometer, Piezometer, Strain Gauge and Tiltmeter Plots
cc: Ali Alou, E.I.T.
Client: File: e-file:
Alberta Transportation 15-16-282 \\H\15\16-282 1et- Edm
Date: February 5, 2015
Page 3 of 3
-THURBER
D t M 't d J ae on1 ore anuary 19 2015 .
INSTRUMENT # DATE INITIALIZED
Sl1 August 31, 2006
Sl13-1 May 23,2013
Sl13-3 May 23, 2013
Sl14-1 (1A) February 22, 2014
•
D t M 't d J ae om ore : anuary 19 2015 . INSTRUMENT# DATE INITIALIZED
PZ1 September 11 , 2006
PZ2 September 11 , 2006
\\H\ 15\16-282
TOTAL CUMULATIVE RESULTANT MOVEMENT AND
DEPTH OF MOVEMENT TO DATE (mm)
1. 7 mm over 2.5 m to 4.9 m depth in 345° direction
59.4 mm over 10.5 m to 14.2 m depth in 290° direction
66.8 mm over 17.2 m to 19.1 m depth in 290° direction
7.4 mm over 16.6 m to 20.3 m depth in 280° direction
No discernible movement
TABLE 1 HWY 621:02 PEMBINA RIVER BRIDGE (BF74969)
SLOPE INCLINOMETER INSTRUMENTATION READING SUMMARY
MAXIMUM RATE OF DATE OF MOVEMENT CURRENT STATUS LATEST
(mm/yr) READING
DATE OF PREVIOUS READING
1.3 mm/yr in October Frozen
December 17, October 14, 2014
2010 2014 293.4 mm/yr in July
2013 Operational January 19, 2015
December 17, 4707.8 mm/yr in 2014 November 2013 377.7 mm/yr in
Operational January 19, 2015 December 17,
November 2013 2014
N/A Frozen December 17, October 14, 2014
2014
TABLE 2 HWY 621:02 PEMBINA RIVER BRIDGE (BF74969)
PNEUMATIC PIEZOMETER INSTRUMENTATION READING SUMMARY
LATEST MAXIMUM PORE
TIP DEPTH B.G.S GROUND ELEVATION CURRENT STATUS PRESSURE
MEASURED PORE (m) (m)
(kPa) PRESSURE
(kPa)
16.80 827.29 Frozen 233.7 on May 23, NOT READ
2013
22.90 831.43 Frozen 266.0 on June 5, NOT READ 2012
INCREMENTAL CURRENT CHANGE IN RATE OF MOVEMENT SINCE RATE OF MOVEMENT SINCE
PREVIOUS READING MOVEMENT PREVIOUS READING (mm) (mm/yr) (mm/yr)
NOT READ NOT READ N/A
No discernible movement N/A -4.7
No discernible movement N/A -7.0
0.4 4.9 4.6
NOT READ NOT READ N/A
CHANGE IN WATER LATEST WATER PREVIOUS WATER LEVEL SINCE
LEVEL B.G.S LEVEL B.G.S PREVIOUS (m) (m) READING
(m)
NOT READ 1.84 mAGS N/A
NOT READ 3.00 mBGS N/A
-• THURBER
D t M "t d J ae om ore anuary 19 2015 '
INSTRUMENT DATE TIP DEPTH GROUND
B.G.S ELEVATION # INITIALIZED (m) Cml
SP13-3 May 23, 2013 3.94 832.72
Dt M. dJ ae omtore : anuarv 19, 2 0 15
INSTRUMENT DATE TIP GROUND
# INITIALIZED ELEVATION ELEVATION
(m) (m)
VW13-1A April25, 2013 821 .23 831 .93 (25254)
VW13-1 (25253) April25, 2013 813.63 831 .93
VW13-2 (25256) April 25, 2013 816.40 828.60
VW13-3 (25255) April 25, 2013 814.42 832.72
\\H\ 15\16-282
TABLE 3 HWY 621:02 PEMBINA RIVER BRIDGE (BF74969)
STANDPIPE PIEZOMETER INSTRUMENTATION READING SUMMARY
CURRENT MAXIMUM WATER LATEST MEASURED WATER
LEVEL B.G.S LEVEL B.G.S STATUS (m) (m)
Operational 0.77 June 18, 2013 2.26 mBGS
CURRENT STATUS
Operational
Operational
Operational
Operational
TABLE 4 HWY 621:02 PEMBINA RIVER BRIDGE (BF74969)
VIBRATING WIRE PIEZOMETER INSTRUMENTATION READING SUMMARY
MAXIMUM GROUNDWATER LA TEST GROUNDWATER ELEVATION ELEVEVATION
(m) (m)
830.44 on June 18, 2013 828.19
(3.74 mBGS)
833.59 on May 8, 2013 828.05
(3 .. 88 mBGS)
828.29 on May 8, 2013 No reading output on readout
832.48 on May 8, 2013 828.78
(3.94 mBGS)
PREVIOUS READING CHANGE IN WATER LEVEL SINCE B.G.S PREVIOUS READING
(m) (mj
2.11 mBGS -0.15
PREVIOUS GROUNDWATER CHANGE IN WATER LEVEL SINCE ELEVATION PREVIOUS READING
(m) (m)
828.30 -0.11
(3.63 mBGS) 828.13
-0.08 (3.80 mBGS)
827.58 N/A
(1 .02 mBGS) 828.86 -0.08
(3 .86 mBGS)
~-----------.---------------------------------------------------------------------------~---------------. ;; N
..; 0
s
LEGEND
+ 2013 I 20141NSTRUMENTATION
-$- PREVIOUS INSTRUMENTATION
• TILT METER
X SURVEY MONITORING POINTS
--OP-- OVERHEAD POWER LINE
- POWER POLE AND GUY WIRE
-----lB- BURIED TELUS LINE
[fJ TELUS PEDESTAL
B B B GUARD RAIL
---- CRACKS
~TREELINE
- OT -- OVERHEAD TELEPHONE LINE
SP STANDPIPE PIEZOMETER
Sl SLOPE INCLINOMETER
VW VIBRATING WIRE PIEZOMETER
PZ PNEUMATIC PIEZOMETER
T TILTMETER
SG STRAIN GAUGE
0 10 20 30 40
SCALE 1:750
BASE PLAN PROVIDED BY GENIVAR
Transportation
SLOPE STABILITY ASSESSMENT BF7 4969 HWY 621 :02
SITE PLAN
50m
DWG No. 15-16-282-1
ML -AJG
1111 PPROVEDBY
RVC
1:750
FEBRUARY 201 5 THURBER ENGINEERING LTD. 15-16-282
Sl#
Sl13-1 Sl13-3 Sl14-1
Sll
SP#
ALBERT A TRANSPORTATION INSTRUMENT MONITORING FIELD SUMMARY
Location: HWY 621 :02 Pembina River Bridge (BF74969) File Number: 15-16-282
Readout: RST 9 Casing Diameter 3.34 " 0
Temp: -4 °C Read by: JAG
Probe: RST 9 Cable: RST 9
SLOPE INCLINOMETER (SI) READINGS
GPS Location Date Stickup Depth from top Azimuth of (3TM 114) (m) of casing (ft) A+ Groove
Northing Easting A+ 5916327.63 321698.96 19-Jan-15 0.76 100 to 2 270 36 5916337.37 32 1741 .66 19-Jan-15 0.76 98 to 2 260 -37 5916337.37 32174 1.66 19-Jan- 15 1.24 52 to 2 265 N53° 16' 49" W115° 10' 27" 19-Jan-15 0.89 68 to4 340
STANDPIPE PIEZOMETER (SP) READINGS
GPS Location (3TM 114) Date Stick-up Reading below
Current Bottom Remarks Depth Readings
A- B+ B--31 89 -91 40 230 -237 FROZEN FROZEN
Bottom Pipe Depth
Northing J Easting (m) top of casing (m) (below top of casing (m) SPI3-3 59 16337.37 I 321741 .66 19-Jan-15 0.90 3.13 3.94
PNEUMATIC PIEZOMETER (PN) READINGS
PN# GPS Location (3TM 114) Date Reading Identification Northing Easting (psi) Number
PZI 5916366.43 321597.77 19-Jan-15 FROZEN
PZ2 5916330.38 321684.01 19-Jan-15 FROZEN 30579
VIBRATING WIRE PIEZOMETER (VW) READINGS
VW# GPS Location (3TM 114) Date Reading (Bideg C) Identification Northing Easting Number
VWI3-1A 5916327.63 321698.96 19-Jan-15 8363.0 I 5.2 25254
VWI3-I 5916327.63 321698.96 19-Jan-15 8121.2 I 4.6 25253
VWI3-2 5916352.36 321685.55 19-Jan-15 NO READING ON
25256 READOUT
VWI3-3 5916337.37 32 1741.66 19-Jan-15 8011.3 I 4.5 25255
INSPECTOR REPORT
Water Flow: E (tall) MH measured at approximately 38Limin W (shof!)_ MH measured at approximately 6 Lim in.
Downloaded data from: SGI3-2, TWI, TEl , and TE2 VW 13-2 did not have any output when read.
Thurber Engineering Ltd.
-150 0
2
4
6
8
10
12
14
Depth
(m) 16
Deflection (mm)
-75 0
Clay (Fill)
Clay
Clay(Till)
150 0 LEGEND
Initial 23 May 2013
2 [9-------£1 17Nov2013
19 Nov 2013 4
21 Nov 2013
6 ~ 22 Nov 2013
10
24 Nov 2013
~ 26Nov2013
lt------') 29 Nov 2013
&----€) 30 Nov 2013
12 ~ 1 Dec 2013
~ 3Dec2013
14 [9-------£1 5Dec2013
8 Dec 2013
16 ~~ 13 Dec 2013
18 Dec 2013
Clay ~ 15Jan 2014
20c-------..--- ------:::1 2o ~ 20Feb2014 Clay(Till)
&----€) 7 Mar 2014
22 r---___,.G,_,_,ra...,v"'e,_l - -------- - - -----l 22 ~ 18 Apr 2014
~ 12Jun2014
24 24 Sand [9-------£1 31 Jul2014
26 1=-- -----__.'-----------=1 26 w----w 14 Oct 2014
28
30
-150
Bedrock
-75 0 75
Cumulative Deflection
Direction A
17 Dec 2014
28 ~ 19 Jan 2015
Ref. Elevation 831 .93 m
30
150
Deflection (mm)
-50 so 0 .----.-----~--.----. 0
2
4
6
8
10
12
14
Depth
(m) 16
Clay
2
4
6
8
10
12
14
16
22 r---___,.G,_,_,rn.,_,v"'e,_l ___ _. _____ _ ~22
24 Sand 24
261=-------~------~26
28
30
-50 -25 0 25
Incremental Deflection
Direction A
28
30
so
HWY 621:02 PEMBINA RIVER BF74969, Inclinometer 5113-1
ALBERTA TRANSPORTATION
H:\ 15\16-282 Slope Stability Assessment- BF7 4969 Hwy 621 02 Bridge\lnstrumentation\SI Readings\SI13-1 .gtl
Thurber Engineering Ltd.
Deflection (mm)
-25 -50 0,------,------,
2
4
6
8
10
12
14
Depth
(m) 16
Clay (Fill)
Clay
Clay (Till)
Clay
2
4
6
8
10
Initial 23 May 2013
ll----1!] 17 Nov 2013
19 Nov 2013
21 Nov 2013
22 Nov 2013
24 Nov 2013
26 Nov 2013
iT- v 29 Nov 2013
~ 30Nov2013
12 ~ 1 Dec 2013
~ 3Dec2013
14 G---£J 5 Dec 2013
8 Dec2013
16 ~ 13 Dec 2013
18 Dec 2013
)(----l( 15 Jan 2014
20 ~------------•-------------1 20 ~ 20 Feb 2014
~ 7Mar2014
22 1-----"""-"'-"-"'--------6--------------1 22 ~ 18 Apr 2014
~ 12Jun 2014
24 Sand 24 G---£J 31 Jul2014
26 ~------------~------------~ 26 ~ 14 Oct 2014
28
30
-50
Bedrock
-25 0 25
Cumulative Deflection
Direction B
17 Dec 2014
28 ~ 19 Jan 2015
Ref. Elevation 831.93 m
30
50
Deflection (mm)
-50 -25 25 0 .-------.-----......
50 =------,--------, 0
2
4
6
8
10
12
14
Depth
(m) 16
Clay(Fill)
Clay
Clay(Till)
Clay
2
4
6
8
10
12
14
16
20 ~------------~------------~ 20
Clay(Till)
24 Sand 24
26 ~------------.-------------~ 26
28
30
-50
Bedrock
-25 0 25
Incremental Deflection
Direction B
28
30
50
HWY 621 :02 PEMBINA RIVER BF74969, Inclinometer Sl13-1
ALBERTA TRANSPORTATION
H:\15\16-282 Slope Stability Assessment- BF7 4969 Hwy 621 02 Bridge\lnstrumentation\SI Readings\SI13-1 .gtl
-120 0
2
4
6
8
10
12
14
Depth
(m) 16
24
28
30
-120
Thurber Engineering Ltd.
Deflection (mm)
-60 0 120 0 LEGEND
Deflection (mm)
-25 -50 0 ,------,----_,~----,------,
Clay (Fill) Initial 23 May 2013
Clay
2 ['}---£} 17 Nov 2013
19 Nov 2013 4
21 Nov 2013
6 ~ 22 Nov 2013
24 Nov 2013
r.--x 26 Nov 2013
r--+> 29 Nov 2013
C1--e) 30 Nov 2013
~ 1 Dec2013
~ 3Dec2013
!'l---fJ 5 Dec 2013
8 Dec2013
~ 13Dec2013
18 Dec 2013
r.--x 15 Jan 2014
~ 20Feb2014
C1--e) 7 Mar 2014
~ 18Apr2014
~ 12Jun2014
['}---£} 31 Jul2014
14 Oct 2014
2
4
6
8
10
12
14
Depth
(m) 16
24
Clay
10
12
14
16
Sand 24
26 ~------------~------------~ 26
-60 0 60
Cumulative Deflection
Direction X
17 Dec 2014
~ 19Jan2015
Ref. Elevation 831 .93 m
30 skew = 20deg
120
28
30
-50
Bedrock
-25 0 25
Incremental Deflection
Direction X
HWY 621 :02 PEMBINA RIVER BF74969, Inclinometer Sl13-1
ALBERT A TRANSPORTATION
28
30
50
H:\15116-282 Slope Stability Assessment- BF74969 Hwy 621 02 Bridge\lnstrumentation\SI Readings\SI13-1.gtl
Displ.
(mm)
Thurber Engineering Ltd.
1 Jul 2013 1 Oct 2013 1 Apr 201 4 1 Jul2014 80 ,---,----------.----------,----------.----------.----------,----------.--------, 80
1 Jan 2014 1 Oct 201 4 1 Jan 2015
Displacements shown are in the X Direction
70 (skew= 20 degrees)
70
60 10.5/14.2 m 60
+--+ 17.2/19.1 m
50 50
40
30
20
10
0
1 Jul2013 1 Oct 2013 1 Jan 2014 1 Apr2014 1 Jul 2014 1 Oct 2014 1 Jan 2015
HWY 621 :02 PEMBINA RIVER BF74969, Inclinometer Sl13-1
ALBERTA TRANSPORTATION
Thurber Engineering Ltd.
Deflection (mm) Deflection (mm)
-25 2.5 25 -10 -5 5 10 0 0 LEGEND 0 0
Initial 23 May 2013
2 2 17 Nov 2013 2 2 (1j----£J
'l'-"17 19 Nov 2013 4 4 4 4
21 Nov2013
6 6 ~ 22 Nov 2013
6 Clay(Till) 6
a.-----£ 24 Nov 2013
8 8 'lc---f.. 26 Nov 2013 8 8
~) 29 Nov 2013
10 10 &--e) 30 Nov 2013 10 10
~ 1 Dec2013
12 12 12 12 1!---JJ 3 Dec 2013
&--S 5 Dec 2013 14 14 14 14
Depth '1'--'!7 8 Dec2013 Depth
(m) 16 16 ~ 13 Dec 2013 (m) 16 16
a.-----£ 18 Dec 2013
La 18 18 >E-----1< 15 Jan 2014 18
~ 21 Feb 2014 I 20
Clay 20 20
Clay 20
&--e) 7 Mar 2014
~ 18 Apr 2014 22 22 22 22
1!---JJ 12 Jun 2014
24 24 (1j----£J 31 Jul2014
24 24 Sand 14 Oct 2014 Sand
'<!'----W
26 26 17 Dec 2014 26 26
~) 19Jan2015
28 28 Ref. Elevation 832.72 m 28 28
Bedrock
30 30 30 30
-25 -12.5 0 12.5 25 -10 -5 0 5 10
Cumulative Deflection Incremental Deflection
Direction A Direction A
HWY 621 :02 PEMBINA RIVER BF74969, Inclinometer Sl13-3
ALBERTA TRANSPORTATION
H:\15\16-282 Slope Stability Assessment- BF74969 Hwy 621 02 Bridge\lnstrumentation\SI Readings\SI13-3.gtl
-25 0
2
4
6
8
10
12
14
Depth
(m) 16
18
20
22
24
26
28
30
-25
Deflection (mm)
-12.5 ~lmil ~ IV7/
I
If
Clay(Till)
I
~ ~
•
Clay
I
Sand
Bedrock
-12.5 0
12.5
12.5
25 0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
25
Thurber Engineering Ltd.
Deflection (mm)
-10 LEGEND 0
Initial 23 May 2013
17 Nov 2013 2 I9---I!J
'>'---W 19 Nov 2013 4
21 Nov 2013
~ 22 Nov 2013 6
&----tl:l. 24 Nov 2013
26 Nov 2013 8
[)----V 29 Nov 2013
C1J---e.) 30 Nov 2013 10
~ 1 Dec 2013
~ 3 Dec 2013 12
'5---€ 5 Dec 2013 14
W....-o/ 8 Dec 2013 Depth
~ 13 Dec 2013 (m) 16
&----tl:l. 18 Dec 2013
~ 15 Jan 2014 18
~ 21 Feb 2014
20 Clay
C1J---e.) 7 Mar 2014
~ 18 Apr 2014 22
~ 12 Jun 2014
I9---I!J 31 Jul 2014 24
14 Oct 2014 Sand '>'---W
17 Dec 2014 26
~ 19 Jan 2015
Ref. Elevation 832.72 m 28
30 -10 -5 0 5
Cumulative Deflection
Direction B
Incremental Deflection
Direction B
HWY 621:02 PEMBINA RIVER BF74969, Inclinometer Sl13-3
ALBERTA TRANSPORTATION
H:\15\16-282 Slope Stability Assessment- BF74969 Hwy 621 02 Bridge\lnstrumentation\SI Readings\S113-3.gtl
10 0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
10
Thurber Engineering Ltd.
Deflection (mm)
-25 -12.5 25 0~----~----~~~~~r-----~ 0 LEGEND
2
4
6
8
10
12
14
Depth
(m) 16
Clay(Till)
Initial 23 May 2013
2 &--i'.J 17 Nov 2013
19 Nov 2013 4
21 Nov 2013
6 ~ 22Nov2013
24 Nov 2013
8 r.-----Y- 26 Nov 2013
~ 29Nov2013
10 8----€) 30 Nov 2013
~ 1 Dec2013
12
G tJ 14
3 Dec 2013
5 Dec 2013
8 Dec 2013
16 ~ 13 Dec 2013
18 Dec 2013
18 18 ~ 15 Jan 2014 ~------------~~--------~
~ 21 Feb2014 Clay
20 f--------"~---------=- 20 8----€) 7 Mar 2014
22
24 Sand
26
28 Bedrock
~ 18Apr2014 22 ~ 12Jun2014
IS---fl 31 Jul 2014 24
14 Oct 2014
26 17 Dec 2014
~ 19Jan2015
28 Ref. Elevation 832.72 m
skew= 20deg
2
4
6
8
10
12
14
Depth
(m) 16
18
20
22
24
26
28
Deflection (mm)
-5
Clay(Till)
8
10
12
14
16
18
Clay
22
24 Sand
26
28 Bedrock
30L---~---~----L--~ 3o 30 L------L------~----~------~3o -25 -12.5 0 12.5 25
Cumulative Deflection
Direction X
-10 -5 0 5 10
Incremental Deflection
Direction X
HWY 621:02 PEMBINA RIVER BF74969, Inclinometer 8113-3
ALBERT A TRANSPORTATION
H:\15\16-282 Slope Stability Assessment- BF74969 Hwy 621 02 Bridge\lnstrumentation\SI Readings\SI13-3.gtl
Thurber Engineering Ltd.
1 Jul2013 1 Oct 2013 1 Jan 2014 1 Apr 2014 1 Jul2014 1 Oct 2014 1 Jan 2015
24 24 Displacements shown are in the X Direction
22 (skew= 20 degrees) 22
20 ~ 16.6/20.3 m 20
18 18
16 16
14 14
12 12
Displ.
(mm) 10 10
8 8
6 6
4 4
2 2
0 0
1 Jul2013 1 Oct 2013 1 Jan 2014 1 Apr 2014 1 Jul2014 1 Oct 2014 1 Jan 2015
HWY 621:02 PEMBINA RIVER BF74969, Inclinometer Sl13-3
ALBERT A TRANSPORTATION
Piezometric Elevation at Standpipe SP13-3
844
842
840
838
836
-834 .§. c 0
i 832 II"'" Gl
- SPl3-3 (Ground)
- SPl3·3 (Water Level) w
---- SPl3·3 (Tip)
830
--------------------------------------------------------------828
826
824
822
820 +----------r--------~----------r---------~---------.----------r---------. 21-May-13 29-Aug-13 07-Dec-13 17-Mar-14 25-Jun-14 03-0ct-14 11-Jan-15 21-Apr-15
Date (dd-mmm-yy)
Piezometric Elevation at Pneumatic Piezometer PZ-1
836
834
832 '-830 r-,.._ 828
I
826
PZ-1 frozen during December 17, 2014 and January 19, 2015 readings .
.-. 824
.§. c .g 822 !: Ql
- PZ-1 (Ground)
- PZ-1 (Water Level)
w 820 ---- PZ-1 (Tip)
818
816
814
812
~-----------------------------------------------------------------810 +---------------------------------------------------------------------------
808 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
06-Sep-06 01-Sep-07 26-Aug-08 21-Aug-09 16-Aug-10 11-Aug-11 05-Aug-12 31-Jul-13 26-Jul-14 21-Jul-15
Date (dd-mmm-yy)
838
836
834
832
830
828
826
-824 .5. c .g 822 ~ Cll iii 820
818
816
814
812
810
808
806
Piezometric Elevation at Pneumatic Piezometer PZ-2
....... ........ .,._.._ ... ~ .__...
____./' ' ;----" ' ""' -- I -/ ..
• I _. I •
PZ-2 frozen during December 17, 2014 and January 19, 2015 readings.
----------------------------------------------------------- ---
06-Sep-06 01-Sep-07 26-Aug-08 21-Aug-09 16-Aug-10 11-Aug-11 05-Aug-12 31-Jul-13 26-Jul -14
Date {dd-mmm-yy)
- PZ·2 (Ground)
- PZ·2 (Water Level)
---- PZ·2 (Tip)
21-Jul-15
Piezometric Elevation at VW Piezometers VW13-1A and VW13-1
835 .---------------------------------------------------------------------------
834 +---------------------------------------------------------------------------833
832
831
830
829
828
827
826
825
-............. ~-"" \
\ \
-824 .§. c 823 0
~ 822 ~ iii 821 ~ -------------------------------------------------------------
820 +---------------------------------------------------------------------------819 +-------------------------------------------------------------------------------818 +---------------------------------------------------------------------------817 +---------------------------------------------------------------------------816 +---------------------------------------------------------------------------815 +-------------------------------------------------------------------------------814 +---------------------------------------------------------------------------
~ ----------------------------------------------------------------------813 +---------------------------------------------------------------------------812 +---------------------------------------------------------------------------811 +---------------------------------------------------------------------------810 +-~~~~~~~~1-~~~~~~~~-r~~~~~~~~-+~~~~~~~~~
8-May-13 6-Aug-13 4-Nov-13 2-Feb-14 3-May-14 1-Aug-14 30-0ct-14 28-Jan-15 28-Apr-15
Date {dd-mmm-yy)
- Ground Surface
- VW13·1A (Water Level)
---- VW13·1A (Tip)
- VW13· 1 (Water Level)
----· VW13·1 (Tip)
835
834
833
832
831
830
829
828
827
826
825
-824 .5. c 823 .2 1W 822 ~
ii:i 821
Piezometric Elevation at VW Piezometer VW13-2
"""'- - .....
VW13-2 showed no output on readout during the January 19, 2015 reading.
820
819
818
817
816
815
~ ------------------------------------------------------------
814
813
812
811
810 8-May-13 16-Aug-13 24-Nov-13 4-Mar-14 12-Jun-14 20-Sep-14 29-Dec-14
Date (dd-mmm-yy)
- Ground Surface
- VW13·2 (Water Level)
---- VW13·2(Tip)
8-Apr-15
Piezometric Elevation at VW Piezometer VW13-03
835
834
833 ~ ....
832 ~
831
830
829 --828
827
826
825
.... 824 .§. c 823 0
~ 822 > Gl iii 821
820
819
818
817
816 +-----------------------------------------------------------------------------815 +-----------------------------------------------------------------------------
~---------------------------------------------------------------814 +-----------------------------------------------------------------------------813 +--------------------------------------------------------------------------812 +-----------------------------------------------------------------------------811 +-----------------------------------------------------------------------------810 ~~~~~ur~~~~~~~~~~ru~~~~~~~~~~~~~~~~~~~~
8-May-13 16-Aug-13 24-Nov-13 4-Mar-14 12-Jun-14 20-Sep-14 29-Dec-14 8-Apr-15
Date {dd-mmm-yy)
- Ground Surface
- VW13·3 (Water Level)
---- VW13·3 (Tip)
200
150
-200 29-0ct-13 28-Dec-13 26-Feb-14
BF74969 (Hwy 621:02) Strain Data- SG13-2
27-Apr-14 26-Jun-14
Date
25-Aug-14 24-0ct-14
30
20
-40
23-Dec-14 21-Feb-15
Tiltmeter Change in Rotation from Installation Date (March 7, 2014) 0.15
0.14
0.13
0.12
0.11
0.1
0.09
0.08 Vi' Ill 0.07 Ill ... 1011 Ill 0.06 ~ --+- TEl - 05038- A Axis c 0 0.05 ... - lit - TEl - 05038 - B Axis
"' .. 0.04 0
Ill: --+- TE2 - 05041 - A Axis
.5 0.03 Ill - lit - TE2 - 05041 - B Axis
110 c
"' 0.02 &. ---TWl - 05042 - A Axis
u 0.01
- lit - TWl - 05042 - B Axis
0
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06 7-Mar-14 16-Apr-14 26-May-14 5-Jul-14 14-Aug-14 23-Sep-14 2-Nov-14 12-Dec-14 21-Jan-15 2-Mar-15
Date