ALBERTA TRANSPORTATION INSTRUMENTATION ......FALL 2009 NC02 - HWY 22:30 Willey West Park E12101085...

ISSUED FOR REVIEW

ALBERTA TRANSPORTATION INSTRUMENTATION MONITORING RESULTS

FALL 2009

SECTION C

NORTH CENTRAL (STONY PLAIN) REGION

SITE NC02: HWY 22:30 WILLEY WEST PARK

1.0 OBSERVATIONS

1.1 Field Program and Instrumentation Status

Four slope indicators (SI, SI01-1, SI-3A, SI-4A, SI-10), one pneumatic piezometer (PN, PN01-1) and two standpipe piezometers (SP, SP01-1 and SP01-2) were read at the Willey West site on October 20, 2009 by Messrs. Matthew Weatherby, E.I.T. and Kevin Leopold, Engineering Assistant of EBA Engineering Consultants Ltd. (EBA).

The SIs were read with a Durham Geo Slope Indicator Digi Indicator probe with a 0.61 m (2 foot) wheelbase and Digi Datamate readout. Inclinometer reading depths were defined as per 0.61 m (2 foot) cable markings with respect to the top of the inclinometer casing.

The PN’s were read with an RST Petur C102 PN readout box. The SP’s were read with a Solonist water level meter.

2.0 INTERPRETATION

2.1 General

SI plots for the A and B directions as well as the SP and PN data are presented in Section D and are summarized in the attached tables. The depth and rate of movement recorded by the SIs is also presented in the attached tables.

Interpretation of the SI data was conducted as follows:

• Cumulative resultant movement - determined from the maximum value of resultant movements calculated from adjacent data points collected by the SI probe. These movements do not necessarily reflect the maximum cumulative movements at shear zones and therefore the depths reported at the cumulative resultant movement may differ from those reported in the SI monitoring summary table.

• Incremental movement since the previous reading - calculated by reporting the calculated maximum change in the resultant movement at the depth of the reported cumulative resultant movement.

E12101085 December 2009

ISSUED FOR REVIEW 2

• Current rate of movement - calculated based on the change in movement over a full year cycle at the depth of the maximum incremental movement.

2.2 Zones of Movement

New zones of movement were not recorded since the last set of readings in the spring of 2009. Historic rates of movement are presented in the attached rate plots which show deformations at various zones over time.

2.3 Interpretation of Monitoring Results

In general, there is no appreciable change in the rates of movement since the spring 2009 monitoring period. SI01-1A and SI-3A show an acceleration in movement of <1 mm/yr while SI-10 shows a deceleration of <1 mm/yr. SI-4A indicates no change in the rate of movement.

PN01-1 adjacent to SI01-1 showed an increase of pore water pressure equal to approximately 0.35 m of head. The two standpipes, SP01-1 and SP01-2, show no appreciable change in water level with a decrease of 0.05 and 0.02 m from the spring 2009 readings respectively. Piezometric elevations at PN01-1 are relatively stable over the past 3 years. SP01-1 showed erratic levels up until the past year and SP01-2 shows a steady, marginal decline over the past 3 years.

3.0 RECOMMENDATIONS

3.1 Future Work

The instruments should be read again in the spring of 2010 at which time geodetic coordinates should be picked up by surveying the instruments from a control point with a known elevation.

3.0 INSTRUMENTATION REPAIR

Instrumentation repair is not required at this time.

FALL 2009 NC02 – Hwy 22:30 E12101085 Willey West Park

SLOPE INCLINOMETER SUMMARY

Date Monitored: October 20, 2009 INSTALLATION DETAILS SUMMARY OF DEFORMATION FOR 2009 SPRING

REPORT SUMMARY OF DEFORMATION† FOR 2009 FALL

REPORT

SI # Ground

Elevation (m)

Azimuth (°)

Pipe s/u (m)

Depth†† (m)

Cumulative Deformation Spring 2009

(mm)

Rate of Movement

Spring 2009 (mm/year)

Azimuth of Deformation Spring 2009

(°)

Cumulative Deformation

2009 (mm)

Rate of Movement

2009 (mm/year)

Azimuth of Deformation

2009 (°)

Change in Rate of

Movement Since

Previous Reading

(mm/year) SI- 10 - 012 0.49 1.3 – 3.2 94 5.0 027 93 4.9 027 -0.1SI- 3A - 000 0.98 7.6 – 9.4 81 4.8 029 89 5.1 037 +0.3SI- 4A - 014 0.73 7.8 – 9.6 69 4.1 018 71 4.1 018 No Change

SI01- 1 599.8 007 0.73 0.5 – 2.3 8 1.0 153 9 1.1 181 +0.1Notes: †According to Durham Geo Slope Indicator (DGSI) “Slope Indicator’s inclinometer equipment provides a system accuracy of ±0.01 inch (0.25mm) per reading, or ±0.3 inches (6mm) accumulated over 50 readings”. This is a conservative, but practical specification of the accuracy that can be expected when casing is installed within 3º of vertical and proper reading techniques are used. †† some intervals have been adjusted to reflect the changing movements over time.

PNEUMATIC/STANDPIPE PIEZOMETER SUMMARY Date Monitored: October 20, 2009

Instrument Date Initialized Tip Elevation (m)

Ground Elevation (m)

Piezometric Elevation (m)

Change From Spring 2009 Reading

(m) PN01-1 May 23, 2001 589.14 599.84 596.52 +0.35SP01-1 May 23, 2001 N/A 595.63 591.15 -0.05SP01-2 May 23, 2001 N/A 590.83 587.78 -0.02

FALL 2009 NC02 - HWY 22:30Willey West Park

E12101085

SI-# CommentsLatitudeLongitudeStick-upAzimuth of A+ GrooveGround ElevationReading DepthOctober 10, 1990 √

July 3, 1992 √ √

August 2, 2001 √

May 26, 2008 √ √ *9m √ *9m √ *3mSeptember 26, 2008 √ √ *9m √ *9m √ *3mMay 20, 2009 √ √ *9m √ *9m √ *3mOctober 20, 2009 √ √ *9m √ *9m √ *3m

Legend: √ data acquired and processed* shear movement depth** SI casing sheared-off depth

*** SI casing broken & needs repair†† monitor above probable shear zone

Slope Inclinometer Monitoring Summary

SI-10SI-4A53º12.735'

114º54.470'53º12.707'

SI01-1 SI-3A

114º54.501' 114º54.454'53º12.753'

114º54.458'53º12.725'

1.6 ft2.4 ft007 000 014 012

3.2 ft 2.4 ft

599.84 m5 - 69 ft 5 - 67 ft 5 - 67 ft 3 - 57 ft

ALBERTA TRANSPORTATION INSTRUMENTATION MONITORING RESULTS

FALL 2009 DATA PRESENTATION

SECTION D

NORTH CENTRAL REGION

SITE NC2: HWY 22:30 - WILLEY WEST PARK

580

582

584

586

588

590

592

594

596

598

600

Elev.

(m)

-25 -12.5 0 12.5 25

580

582

584

586

588

590

592

594

596

598

600

-25 -12.5 0 12.5 25

580

582

584

586

588

590

592

594

596

598

600

Elev.

(m)

-25 -12.5 0 12.5 25

580

582

584

586

588

590

592

594

596

598

600

-25 -12.5 0 12.5 25

LEGEND

Initial 2 Aug2001*

7 Sep2001

6 Oct2002

30 Oct2003*

6 Oct2006

26 Sep2008*

20 May2009*

20 Oct2009

Cumulative DeflectionDirection A

Deflection (mm)

Cumulative DeflectionDirection B

Deflection (mm)

Ref. Elevation 600.54m

NC02, Inclinometer SI01-1Alberta Transportation

Hwy 22:30 Willey West ParkSets marked * include zero shift and/or rotation corrections.

EBA Engineering Consultants Ltd. - Edmonton

580

582

584

586

588

590

592

594

596

598

600

Elev.

(m)

-10 -5 0 5 10

580

582

584

586

588

590

592

594

596

598

600

-10 -5 0 5 10

580

582

584

586

588

590

592

594

596

598

600

Elev.

(m)

-10 -5 0 5 10

580

582

584

586

588

590

592

594

596

598

600

-10 -5 0 5 10

LEGEND

Initial 2 Aug2001*

7 Sep2001

6 Oct2002

30 Oct2003*

6 Oct2006

26 Sep2008*

20 May2009*

20 Oct2009

Incremental DeflectionDirection A

Deflection (mm)

Incremental DeflectionDirection B

Deflection (mm)

Ref. Elevation 600.54m

NC02, Inclinometer SI01-1Alberta Transportation

Hwy 22:30 Willey West ParkSets marked * include zero shift and/or rotation corrections.


10

8

6

4

2

0

-2

-4

-6

-8

-10

Displ.

(mm)

10

8

6

4

2

0

-2

-4

-6

-8

-10 1 Jan2002 1 Jan2004 1 Jan2006 1 Jan2008 1 Jan2010

1 Jan2002 1 Jan2004 1 Jan2006 1 Jan2008 1 Jan2010

1.2/21.3 m

Displacements shown are in the A Direction

NC02, Inclinometer SI01-1

Alberta Transportation


10

8

6

4

2

0

-2

-4

-6

-8

-10

Displ.

(mm)

10

8

6

4

2

0

-2

-4

-6

-8

-10 1 Jan2002 1 Jan2004 1 Jan2006 1 Jan2008 1 Jan2010


1.2/21.3 m

Displacements shown are in the B Direction

NC02, Inclinometer SI01-1



-18

-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-100 -50 0 50 100

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

-100 -50 0 50 100

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-100 -50 0 50 100

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

-100 -50 0 50 100

LEGEND

Initial 3 Jul1992

11 Apr1995

20 Oct1997

6 Sep2000

30 Oct2003

5 Oct2004

29 Sep2005

6 Oct2006

2 Oct2007

26 Sep2008

20 May2009

20 Oct2009


Deflection (mm)


Deflection (mm)

Ref. Elevation m

NC02, Inclinometer SI-3AAlberta Transportation

Hwy 22:30 Willey West Park


-18

-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-75 -37.5 0 37.5 75

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

-75 -37.5 0 37.5 75

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-75 -37.5 0 37.5 75

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

-75 -37.5 0 37.5 75

LEGEND

Initial 3 Jul1992

11 Apr1995

20 Oct1997

6 Sep2000

30 Oct2003

5 Oct2004

29 Sep2005

6 Oct2006

2 Oct2007

26 Sep2008

20 May2009

20 Oct2009


Deflection (mm)


Deflection (mm)

Ref. Elevation m




100

90

80

70

60

50

40

30

20

10

0

Displ.

(mm)

100

90

80

70

60

50

40

30

20

10

0 1 Jan1994 1 Jan1998 1 Jan2002 1 Jan2006 1 Jan2010


El. -7.6/-10 m


NC02, Inclinometer SI-3A



100

90

80

70

60

50

40

30

20

10

0

Displ.

(mm)

100

90

80

70

60

50

40

30

20

10



El. -7.6/-10 m





-18

-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-100 -50 0 50 100

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

-100 -50 0 50 100

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-100 -50 0 50 100

-18

-16

-14

-12

-10

-8

-6

-4

-2

0

-100 -50 0 50 100

LEGEND

Initial 3 Jul1992

11 Apr1995

20 Oct1997

6 Sep2000

30 Oct2003

5 Oct2004

29 Sep2005

6 Oct2006

2 Oct2007

26 Sep2008

20 May2009

20 Oct2009


Deflection (mm)


Deflection (mm)

Ref. Elevation m




80

70

60

50

40

30

20

10

0

Displ.

(mm)

80

70

60

50

40

30

20

10



El. -7.8/-9.6 m





-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-100 -50 0 50 100

-16

-14

-12

-10

-8

-6

-4

-2

0

-100 -50 0 50 100

-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-100 -50 0 50 100

-16

-14

-12

-10

-8

-6

-4

-2

0

-100 -50 0 50 100

LEGEND

Initial 10 Oct1990

18 Oct1994

14 May1997

20 Oct1997

6 Sep2000

5 Oct2004

6 Oct2006

2 Oct2007

26 Sep2008

20 May2009

20 Oct2009


Deflection (mm)


Deflection (mm)

Ref. Elevation m

NC02, Inclinometer SI-10Alberta Transportation



-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-80 -40 0 40 80

-16

-14

-12

-10

-8

-6

-4

-2

0

-80 -40 0 40 80

-16

-14

-12

-10

-8

-6

-4

-2

0

Elev.

(m)

-80 -40 0 40 80

-16

-14

-12

-10

-8

-6

-4

-2

0

-80 -40 0 40 80

LEGEND

Initial 10 Oct1990

18 Oct1994

14 May1997

20 Oct1997

6 Sep2000

5 Oct2004

6 Oct2006

2 Oct2007

26 Sep2008

20 May2009

20 Oct2009


Deflection (mm)


Deflection (mm)

Ref. Elevation m

NC02, Inclinometer SI-10Alberta Transportation



100

90

80

70

60

50

40

30

20

10

0

Displ.

(mm)

100

90

80

70

60

50

40

30

20

10



.7/3.8 m


NC02, Inclinometer SI-10



FALL 2009 NC02 - HWY 22:30Willey West Park

E12101085

Location PN#01-1A SP01-1 SP01-2 CommentsLatitude 53˚12.707' 53˚12.733' 53˚12.755'Longitude 114˚54.470' 114˚54.466' 114˚54.462'Piezometer Number 26544 - -Stick - Up (m) - 0.7 0.7Tip Depth (m) 10.70 12.93 14.90Ground Elevation (m) 599.84 595.63 590.83Date Piezometric Reading (kPa)May 23, 2001 69 14.92 ft 39.31 ftSeptember 7, 2001 79 12.5 ft 25.1 ftJune 4, 2002 79 7.89 ft 7.09 ftOctober 6, 2002 77 8.94 ft 14 ftMay 25, 2003 76 6.44 ft 6.9 ftOctober 30, 2003 69 7.15 ft 7.55 ftMay 7, 2004 72 14.24 ft 9 ftOctober 5, 2004 69 15.68 ft 10.5 ftMay 12, 2005 69 16.68 ft 11.5 ftSeptember 29, 2005 70 2.7 m 3 mMay 29, 2006 69 2.6 m 3.1 mOctober 6, 2006 78 3.45 m 3.26 mMay 15, 2007 79 2.8 m 3.3 mOctober 2, 2007 79 4.8 m 3.3 mMay 23, 2008 73 2.73 m 3.26 mSeptember 26, 2008 76 5.19 m 3.54 mMay 20, 2009 69 5.13 m 3.73 mOctober 20, 2009 73 5.18 m 3.76 m

Stand Pipe Reading (t.o.p.)

Piezometer and Standpipe Monitoring Summary

NC02 - HWY 22:30WILLEY WEST PARK

E12101085

PNEUMATIC/ STANDPIPE PIEZOMETER PLOT

570.00

575.00

580.00

585.00

590.00

595.00

600.00

605.00

610.00

May

-01

May

-02

May

-03

May

-04

May

-05

May

-06

May

-07

May

-08

May

-09

ELEV

ATI

ON

(m)

PN01-1 (26544)SP01-1SP01-2

PN01-1 Ground Elev. - 599.84 m; Tip elev. - 589.14 mSP01-1 Ground Elev. - 595.63 m Bottom depth - 586.7 mSP01-2 Ground Elev. - 590.83 m Bottom depth - 575.83 m

ALBERTA TRANSPORTATION INSTRUMENTATION ......FALL 2009 NC02 - HWY 22:30 Willey West Park E12101085...

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Transcript of ALBERTA TRANSPORTATION INSTRUMENTATION ......FALL 2009 NC02 - HWY 22:30 Willey West Park E12101085...