ame& - City of Quesnel · Inclinometer installations ... velocity plot has not been included for SI-5 due to the "wave-like" profile of the casing and ... depth offset and/or rotation

,. ame&16 March, 2001KX03904

City of Ouesnel405 Barlow AvenueOuesnel, BC V2J 2C3

Dear Mr. Jack Marsh, Director of Public Works

RE: PROJECT UPDATE. MARCH SLOPE INCLINOMETER INSTAllATION READINGSWEST QUESNEl STABILITY STUDY

1.0 INTRODUCTION

This purpose of this letter is to provide the City of Ouesnel (CoO) with a project update for theWest Ouesnel Stability Study, on which work was commenced by AMEC Earth & EnvironmentalLimited (AMEC) in September, 2000. The following tasks have been completed:

. Inclinometer installations (SI) SI-1 through SI-7.Survey of SI locations.An initial reading and three additional readings of each SI) with the exception of SI-4 andSI-5 which have had four additional readings completed).Provision of a project update letter to the CoO on 26 January, 2001.

.

.

.

Figure 1 shows the approximate locations of SI-1 through SI-7.

2.0 SI READING SCHEDULE

Table 1 summarizes the SI reading schedule to date:

Table 1: SI Reading Schedule

*The Aa Groove azimuth refers to the direction of the A channel groove in the SI casing which is aligned approximately parallel to

the downslope dip of the slope

AMEC Earth & Environmental Limited610 Richard RoadPrince George, BC V2K 4L3Tel +1 (250) 564-3243Fax +1 (250) 562-7045 www.amec.com

Borehole: 51-1 51-2 51-3 51-4 51-5 51-6 51-7

Avery Lane Avery Lane Abbott DriveVoyager

Abbott DrivePierce

Location (Lower (Higher (near School (near Dixon StreetCrescent

Elevation) Elevation) Bettcher) Flamingo)Aa' Groove 1200 1200 1200 1100 1100 1050 1000

Azimuth

Depth Read142 ft, 244 ft, 334 ft, 504 ft, 474 ft, 502 ft, 410ft,43 m 74m 102 m 154 m 145 m 153 m 125 m

Finish of25 Oct., 23 Oct., 27 Oct., 13 Oct., 50ct., 16 Oct., 19 Oct.,Installation/

Grouting2000 2000 2000 2000 2000 2000 2000

Initial Reading 21 Nov., 21 Nov., 21 Nov., 3 Nov., 28 Oct., 22 Nov., 22 Nov.,Date 2000 2000 2000 2000 2000 2000 2000

First Reading:7 Dec., 7 Dec.. 6 Dec., 24 Nov., 24 Nov., 6 Dec., 7 Dec.,2000 2000 2000 2000 2000 2000 2000

Second 12 Jan., 11 Jan., 12 Jan., 6 Dec., 6 Dec., 11 Jan., 12 Jan.,Reading 2001 2001 2001 2000 2000 2001 2001

Third Reading5 Mar., 5 Mar., 6 Mar., 11 Jan., 12 Jan., 5 Mar., 6 Mar.,2001 2001 2001 2001 2001 2001 2001

Fourth 5 Mar., 6 Mar.,Reading 2001 2001

City of QuesnelWest Quesnel Stability StudyMarch 16,2001KX03904Page 2

ame&3.0 SI READINGRESULTS

Attached in Appendix A are the results of the SI readings to date. The SI readings arepresented in cumulative and incremental plots with a 50 mm horizontal scale. The incrementalplots show the individual changes in inclination of the casing at each reading elevation. Thecumulative plots are constructed by adding together the incremental changes starting from thebottom of the hole and show the overall apparent movement of the SI casing at each elevationrelative to the bottom of the hole.

Two channels of readings are presented: A and B. The A channel is oriented to be "downslope"whereas the B channel is across slope. The actual orientation of each of the casings is shownon Figure 1 and summarized in Table 1. Positive movements on the Cumulative Plots aredownslope on Channel A and across the slope to the right when looking downhill for Channel B.

Table 2 presents AMEC's preliminary observations based on the limited data gathered to date.

Table 2: SI Data Observations

SI Location SI Data Observations

Cumulative deflections of up to 8 mm (B Channel) have been observed from

SI-1 Avery Lane (Lower depths ranging from 12 to 29 m. There has been little change in the SIInstallation) installation since the previous reading on 12 January, 2001. There was little

or no net deflection of the top of the casing.

Avery Lane (UpperCumulative downhill deflections of up to 10 mm were observed above

SI-2 approximately 60 m depth. There has been approximately an additional 7Installation)

mm of downhill deflection since 11 January, 2001.Abbott Drive Cumulative downhill deflections of up to 10 mm were observed above

SI-3 (near Bettcher approximately 54 m depth. There has been approximately an additional 4Street) mm of downhill deflection since 12 January, 2001.

Cumulative downhill deflections of up to 6 mm were observed above

approximately 51 m depth. There has been approximately an additional 3SI-4 Voyager School mm of deflection since 6 December, 2000. The dataset taken on 11 January,

2000 appeared to contain a data/reading error and has been removed fromthe plot included in Appendix A."Wave like" cumulative deflections of up to 50 mm were observed in a zone

Abbott Drive (nearfrom 36 to 93 m depth. An additional bend has appeared at approximately 72

SI-5Flamingo Drive)

m depth since the reading of 12 January, 2001. The profile of the cumulativedeflection plot indicates that the SI-5 casing may be experiencing verticalcompression or settlement.

Cumulative downhill deflections of up to 32 mm were observed above the

81-6 Dixon Street bottom of the installation at 153 m depth. The deflection of the casing hasincreased approximately 12 mm since 11 January, 2001. There was also anapparent but gradual systematic shift evident on the plots below 28 m depth.

Cumulative deflections towards Baker Creek (B channel) of up to 14 mm

were observed above approximately 68 m depth. The deflection of the casingSI-7 Pierce Crescent in the B channel has increased approximately 12 mm since 11 January, 2001.

There was also an apparent but gradual systematic shift evident on the plotbelow 68 m depth.

City of QuesnelWest Quesnel Stability StudyMarch 16, 2001KX03904Page 3

ame&Included in Appendix B are displacement versus time (velocity) plots for SI-1, 2, 3,4,6 and 7. Avelocity plot has not been included for SI-5 due to the "wave-like" profile of the casing andminimal deflections evident at the top of the casing. Velocity plots are given in the downhill Achannel direction for SI-1, 2, 3, 4 and 6 and in the cross slope B channel direction for S1-1 andSI-7 (positive displacements indicate movement toward the south and negative displacementsindicate movement toward the north).

AMEC emphasizes to the CoO that the readings to date have shown relatively smalldisplacements (with the exception of SI-5) and should be considered very preliminary. Due tothe extreme depth of the installation and winter monitoring conditions it is likely that some of thepreliminary data may be showing the effects of temperature variation, casing grout adjustmentinstrument drift, depth offset and/or rotation errors. AMEC has presented the raw data in theattached plots and has not applied any corrections. Future readings will allow AMEC to isolateand apply corrections for these factors and get a true picture of how much of the SI deformationmay be attributable to lateral ground movement.

4.0 FUTURE WORK

Given the nature of the movements observed to date, AMEC expects to monitor the SI's for atleast another four months (specifically during the spring when landslide movements are typicallyhighest) before proceeding to Stage 2 of the West Ouesnel Stability Study, the more detailedsoils investigation. The next set of readings is planned for April, 2001.

5.0 CLOSURE

Thank you for the opportunity to provide assistance in this matter. Should you have anyquestions of comments please contact Mr. Nick Polysou at 1-250-564-3243.

Respectfully submitted,

Reviewed by:

ck Polysou, P.Eng.Senior Geotechnical EngineerRegional Manager, Central BC.

DD:NP/rmm3904UI.ltr

s-'..'---

e.~~

SI-7, Corner of PierceCrescent and Lewis Drive

51-6, End ofDixonStreet

CnlMA'

51-5, AbbottDrive at Pullout

amecfJCity of Quesnel

West QuesnelStabilityStudy

Quesnel, BC

Figure 1: Slope Inclinometer (SI) LocationsDATE:

Jan.2001SCALE:

I

DRAWN BY:

NTS HMNPROJECT No: KXO39O4

0 300 600 900

SCALE (m)

ApproximateOrientation of A

Channel in SI casings

ame&

APPENDIX A

51 READING RE5ULT5

-500

20

40

60

Depth

(m)

80

100

120

140

AMEC Earth and Environmental - Pr. George

-25.,.

Deflection (mm)

0 25

Jt

-50 -25 0 25

Cumulative Deflection

Direction A

40

60

80

100

120

140 Ref. Elevation 0

50

-500

20

40

60

Depth

(m)

80

100

120

140

-50

-25

Deflection (mm)

0 25 500

20

40

60

80

100

120

140

-25 25 500


Direction B

KXO3904 W. Quesnel Stability Study, Inclinometer SI-1

Lower Avery Lane

50LEGEND0

Initial 21 Nov2000

&-----f] 7 Dec2000

'II'---'V 12 Jan2001

20 +---+ 5 Mar2001

20

40

ro

Depth

(m)

80

100

120

140

-500

Deflection(mm)

-25 0 25T -

I

-50 -25 0 25

Incremental Deflection

Direction A


-500

20

-25.,-

Deflection (mm)

0

40 40

4

-50..L

-25 0

100 100


Direction B


Lower Avery Lane

120 120

140 Ref. Elevation 0 140

50

25T

500

20

40

ro

80

100

120

140

..L25 50

50LEGEND0

Initial 21 Nov2000

7 DecZOOO

12 Jan2001

20 +---+ 5 Mar2001

ro ro

Depth

(m)

80 80

-500

20

40

60

Depth

(m)

80

100

120

140

-50


-25,-

Deflection (mm)

0 25

l~

.L

-25 0...L

25


Direction A

40

60

80

100

120


50

-500

20

40

60

Depth

(m)

80

100

120

140

-50


Upper Avery Lane

-25T

Deflection (mm)

0

.L

-25 0


Direction B

25.,.

500

20

40

60

80

100

120

140

...L25 50

50LEGEND0

Initial 21 Nov2000

&----f'J 7 Dec2000

11 Jan2001

20 +-+ 5 Mar2001


-500

-25

Deflection (mm)

0 25 -500

-25-.Deflection (mm)

0 25I

500

20 20 20

40 40 40 40

100 100 100 100

120 120 120 120

140 140 Ref. Elevation 0 140 140

-50...L-25 0

--L25 50 -50

..L

-25 0--L25 50


Direction A


Direction B


Upper Avery Lane

50LEGEND0

Initial 21 Nov2000

&---f] 7 Dec2000

'1!>----'11' 11 Jan2001

20 +---+ 5 Mar2001

00 00

oor I 100Depth Depth

(m) (m)

80 80 8Ot- I i80

-500

20

40

00

Depth

(m)

80

100

120

140

-25

Deflection (mm)

0 25

-50 -25 0 25


Direction A


-500

20

-25Deflection (mm)

0

40 40

-25 0

100 100


Direction B

KXO3904W. Quesnel Stability Study, Inclinometer SI-3

Abbott Drive near Bettcher

120 120


50 -50

25 500

20

40

00

80

100

120

140

25 50

50LEGEND0

Initial 21 Nov2CXX>

&----fI 6 Dec2(XX)

12 Jan2001

20 +-+ 6 Mar2001

00 00

Depth

(m)

80 80


-100

-5T

Deflection (mm)

0

P'5 -10

0-5

Deflection (mm)

0 5 100

4S

20 20 20

100 100 100 100

120 120 120 120

140 140 Ref. Elevation 0 140 140

-10...L

-5 0 5 10 -10 -5 0

..I-

5 10


Direction A


Direction B

KX03904 W. Quesnel Stability Study. Inclinometer SI-3


10LEGEND0

Initial 21 Nov2CXX>

&---!'J 6 Dec2000

'<1"-----'11' 12 Jan2001

20 +--+ 6 Mar2001

r

40 40

r00 00 00

100Depth Depth

(m) (m)

80 80 8O I 80

-500

20

40

-25

Deflection (mm)

0 25


Deflection (mm)

0 500

-500

-25 25I-r-

20 20

40 40 40

100

120

140

-50 -25 0 25


Direction A

100 100 100

120 120120


50...L-25 50

...L25-50 0


Direction B

KXO3904 W.Quesnel Stability Study, Inclinometer SI-4

Voyageur School

50LEGEND0

Initial 3 Nov2000

6-----f] 24 Nov2000

'P----'!I' 6 Dec2000

20 +--+ 5 Mar2001

60 60

6Or I 160Depth Depth

(m) (m)

80 80 8Ot- . i80

-500

20

40

00

Depth

(m)

80

100

120

140

-50

-25

Deflection (mm)

0


25T

25


Direction A

~

L

-25 0

40

00

80

100

120

140 Re!. Elevation 1

50

20

40

00

Depth

(m)

80

100

120

-500

Deflection(mm)

0

Ft"

25T

500

20

40

00

80

100

120

-25T


Direction 8


50LEGEND0

Initial 3 Nov2000

&--I'J 24 Nov2000

'IP-----"U 6 Dec2000

20 +--+ 5 Mar2001

lr I rI I

-50 -25 0 25 50

-500

20

40

60

Depth

(m)

80

100

120

140


-25Deflection (mm)

0 25

II,-:.j

~j

~~

-50 -25 250


Direction A

60

80

100

120


5(}

-5(}0

20

40

60

Depth

(m)

80

100

120

140

-50

Deflection (mm)

-25 0 25 5(}0

;t\t~n.f'CO,

1 20

!Ij"-'1

I i~;<i

'::, '~'-v~~'~-""'t:'~~.-'t'-'{'

~

"- ", "'V

60~.---,

I.~~

" ~~-""-~.~.~"..~-',.,

80

100

120

140

-25 0 5(}25


Direction B

KXO3904W. Quesnel Stability Study, Inclinometer SI-5

5(}LEGEND0

Initial 28 Oct2DOO

eJ---1'J 24 Nov2DDD

"P----'V 6 Dec2DDO

20 +--+ 12 Jan2DD1

6 Mar2001

40


Deflection(mm) Deflection(mm)

-50 -25 0 25 50 -50 -25 0 25 500, I '1' 0 LEGEND 0 0

. ,.Y

'f Initial 28 Oct2<XXJ ffi a------f'] 24 Nov2000

I:';.i

6 Dec2000 l,fl2Or 20 +---+ 12 Jan2001

20':

i2O1 I"o"J

Pfl

' 6 Mar2001fj f,P

i'!(14Or . 40 40it

i4O

fj

!,,>;.'fi.'

' "q,'""<'j,''}

6Ot- ..f 60 60,r."

i60,

f\U1

JDepth I Depth ':

(m)8O

(m) ,80 80 i80'tf"

"

j ,.'

I"})J

",

1oot- !I 100 100

I1

i1oo..

]r

'I

to,

rl

.,

rt )

12Ot-'1

120 120

I

i12Or

fl ,

f',

(

rlt

p,

1I

p14Ot-

; 140 Ref, Elevation 1 140'

i140,':1 t:

-50 -25 0 25 50 -50 -25 0 25 50

Incremental Deflection Incremental Deflection

Direction A Direction B


.LL_ ....--'..-

-500

20

40

60

Depth

(m)

80

100

120

140

AMEC Earth and Environmental - Pr.George

-25Deflection (mm)

0 25

-50 -25 0 25


Direction A

40

60

80

100

120


50

-500

20

40

60

Depth

(m)

80

100

120

140

-50

-25

Deflection (mm)

0

-25 0


Direction B


End of Dixon Street

25 500

20

40

60

80

100

120

140

25 50

50LEGEND0

Initial 22 Nov2000

&-----eJ 6 Dec2000

'P---'U 11 Jan2001

20 +---+ 5 Mar2001

-500

20

40

60

Depth

(m)

80

100

120

140

-50

-25-.Deflection (mm)

0 25T

~

..L-25 0

...L25


Direction A


-500

20

-25T

Deflection (mm)

0

40 40

-50 -25 0

100 100


Direction B

KX03904 W.Quesnel Stability Study, Inclinometer SI-6

End of Dixon Street

120 120


50

25 500I

20

40

60

80

100

120

140

...L25 50

50LEGEND0

Initial 22 Nov2<XX>

[9-----{'] 6 Dec2(XX)

'F--'IiI' 11 Jan2001

20 +---+ 5 Mar2001

60 60

Depth

(m)

80 80

-500

20

40

00

Depth

(m)

80

100

120

140

-60

-25

Deflection (mm)

0 25

-25 0 25


Direction A


-500

20


Pierce Crescent & Lewis Drive

40 40

100 100

120 120


50 -60

-25

Deflection (mm)

0

-25 0


Direction B

25 500

20

40

00

80

100

120

140

25 50

50LEGEND0

Initial 22 Nov2000

7 Dec2000

'JO----'II' 12 Jan2001

20 t---+ 6 Mar2001

00 00

Depth

(m)

80 80


-so0

-25-,-

Deflection (mm)

0 25 -500

-25"T

Deflection (mm)

0 25 so0

20 20 20

40 40 40 40

100 100 100 100

120 120 120 120

140 140 Ref. Elevation 0 140 140

0 25 so -50 -25 0-L25 so-50

...L.-25

I I


Direction A


Direction B



soLEGEND0

Initial 22 Nov2000

['J-------f] 7 Dec2000

'II'-----'U 12 Jan2001

20 +---+ 6 Mar2001

601i60 601- . i60

h l LDepth

(m) (m)

80 80 I -180

-100

20

40

00

Depth

(m)

80

100

120

140


-5Deflection (mm)

0 5

-10 -5 0


Direction A

40

100

120


5 10

100

-100

-5

Deflection (mm)

0

20

40

120

140

-10 -5 0


Direction B


Lower Avery Lane

5 100

20

40

00

80

100

120

140

5 10

10LEGEND0

Initial 21 Nov2000

!!!------f) 7 Dec2000

'<P-----'U 12 Jan2001

20 +--+ 5 Mar2001

00 00

Depth

(m)

80 80

-100

20

40

60

Depth

(m)

80

100

120

140


-5

Deflection (mm)

0 5

-10 -5 0


Direction A

40

60

80

100

120


5 10

-100

20

40

60

Depth

(m)

80

100

120

140

-10

-5

Deflection (mm)

0

-5 0


Direction B


Lower Avery Lane

5 100

20

40

60

80

100

120

140

5 10

10LEGEND0

Initial 21 Nov2000

f9----!'] 7 Dec2000

'IP---'II7 12 Jan2001

20 +--+ 5 Mar2001

-100

20

40

60

Depth

(m)

80

100

120

140


-5Deflection (mm)

0 5

60

80

100

120


-10 -5 0 5 10


Direction A

-100

20

40

60

Depth

(m)

80

100

120

140

-10

-5

Deflection (mm)

0 5 100

20

40

60

80

100

120

140

-5 5 100


Direction B

KX03904 W. Quesnel Stability Study, Inclinometer 51-2

Upper Avery Lane

10LEGEND

Initial 21 Nov2000

[9----!!] 7 Dec2000

'II'---'ii' 11 Jan2001

20 +-+ 5 Mar2001


-100

-5Deflection (mm)

0

.,......

5T

-100

-5

Deflection (mm)

0

~

5T

100

20 20 20

100 100 100 100

120 120 120 120

140 140 Ref. Elevation 0 140 140

I

-10 -5 0..L5 10 -10

...L

-5 0

...l..5 10


Direction A


Direction B

KX03904 W. Quesnel Stability Study, Inclinometer SI-2

Upper Avery Lane

10LEGEND0

Initial 21 Nov2000

B----fJ 7 Dec2OCX>

"P-----"V 11 Jan2001

20 -t--+ 5 Mar2DO1

401-

t 140 401

-140

001- p+ -loo 001- 1t

100

l , LDepthI

#(m) (m)

80 801- I -180

-100

20

40

60

Depth

(m)

80

100

120

140

-5

Deflection (mm)

0

-10 -5


5

40

60

80

100

120

140 Re!. Elevation0

0 5 10


Direction A

-100

20

40

60

Depth

(m)

80

100

120

140

-10

-5

Deflection (mm)

0

-5 0


Direction B



5 100

20

40

60

80

100

120

140

5 10

10LEGEND

Initial 21 Nov2000

&----f] 6 Dec2000

----..u 12 Jan2001

20 +------+ 6 Mar2001


-500

-25.,-

Deflection(mm)

0 25T

-500

-25

Deflection (mm)

0 25 500

20 20 20

40 ~ 40 40 40

100 100 100 100

120 120 120 120

140 140 Ref. Elevation 0 140 140

-50 -25 0..L25 50 -50

...L-25

...L

0 25 ~


Direction A


Direction B



50LEGEND0

Initial 21 Nov2CXX>

B------eJ 6 Dec2000

'l1'----'li' 12 Jan2001

20 +---+ 6 Mar2001

60 60

6Or I 160Depth Depth

(m) (m)

80 80 8Ot- . i80

-100

20

40

00

Depth

(m)

80

100

120

140

-5

Deflection (mm)

0

~

'I-10 -5 0


Direction A


5

~

~L.

t

..L5

40

00

80

100

120


10

-100

20

40

00

Depth

(m)

80

100

120

140

-10

-5

Deflection (mm)

0 105

20

40

00

80

100

120

140

-5 0 105


Direction B

KX03904 W.Quesnel Stability Study, Inclinometer SI-4

10LEGEND0

Initial 3 Nov2000

19----fI 24 Nov2000

'<P---'II> 6 Dec2000

20 +---+ 5 Mar2QO1

-100

20

40

00

Depth

(m)

80

100

120

140

-10


-5T

Deflection (mm)

0

+t-#5

~

t~

..L-5 0 5


Direction A

40

00

80

100

120


10

-100

Deflection (mm)

0 100

-5T

5

20 20

100 100

120 120

1

~

140 140

-10..L-5 10

.l-S0


Direction B


Voyageur School

10LEGEND0

Initial 3 Nov2000

24 Nov2000

"P---<I7 6 Dec2000

20 +---+ 5 Mar2001

4Ot- I 140

oof J 100Depth

(m)

8Ot- . -180


-100

-5Deflection (mm)

0 5 -10 -5

Deflection (mm)

0 5 100

40 40

2020

40

100 100 100 100

120 120 120 120

140 140 Ref. Elevation 0 140 140

-10 -5 0 5 10 -10 -5 0 5 10


Direction A


Direction B



10LEGEND0

Initial 22 Nov2000

!9---fI 7 Dec2000

'IP---'i7 12 Jan2001

20 +--+ 6 Mar2001

60 60

6Or \ \- 1- 160Depth Depth

(m) (m)

80 80 801- \...11 "80

40 40 40 40

100 100 100 100

120 ~~

120 120 120

140 140 Ref. Elevation 0 140 140

-10 -5 0 5 10 -10 -5 0...L

5 10


Direction A


Direction B




Deflection (mm) Deflection(mm)

-10 -5 0 5 10 -10 -5 0 5 10

01I I 10

LEGEND01 I .. I ,A

Initial 22 Nov2000

&----fI 7 Dec2000

'11'----"11 12 Jan2001

201- . i 20 +--+ 6Mar2001201 l

120I

601 I60

Depth'"r

. 160

h l r-+

(m) (m)

80 80 8O I 80

amecf:l

APPENDIX 8

VELOCITY PLOTS

21 Nov20006.0

5.5

5.0

4.5

4.0

3.5

2.0

1.5

1.0

0.5

00

11 Dec2000

(lJ f'] 19.8/43.6 m

20


31 Dec2000 20 Jan2001 9 Feb2001

Displacements shown are in the A Direction

40 60 80

Days since 21 Nov2000


Lower Avery Lane

1 Mar2001

100

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

3.0

Displ.

(mm) 2.5


21 Nov20000

11 Dec2000 31 Dec2000

-1

20 Jan2001 9 Feb2001 1 Mar2001

Displacements shown are in the B Direction

-2

-3

-4

-5

Displ.

(mm)-6

-7

-8

-9

-100 20 40

'",

""",~ "

"~~

~'"'",

~,

""'"

~'~

60 80 100


10<03904 W. Quesnel Stability Study, Inclinometer SI-1

Lower Avery Lane

0

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

21 Nov200010

9

11 Dec2000

8[1I fI] 60/74.7 m

7

w w 4/74.7 m

6

3

2

-------------

20


31 Dec2000 20 Jan2001 9 Feb2001 1 Mar200110


40


9

8

7

6

5

4

3

2

/ /,//'///'

~~

060 80 100


Upper Avery Lane

5

Displ.

(mm)4


21 Nov20008

11 Dec2000 31 Dec2000 20 Jan2001 9 Feb2001 1 Mar2001


7

~ 52.7/102.1 m

6 w w 33.2/102.1 m

+--+ 1.5/102.1 m

5

2

20 10040 60 80




8

7

6

5

4

3

2

0

4

Displ.

(mm)

3

3 Nov200010

23 Nov2000

9

8[1J £J 50.3/153.9 m

w 'I7 50.3/55.2 m

7

6

3

2


13 Dec2000 2 Jan2001 22 Jan2001 11 Feb2001


40 60 80 100



3 Mar200110

9

8

7

jJ]

6

5

4

3

2

1200

5

Displ.

(mm)4

22 Nov200035

30

I'I E'J 24.1/153.3 m

25

10

5

00

12 Dec2000


1 Jan2001 21 Jan2001 10 Feb2001


~~

20 40 60 80


10<03904 W.Quesnel Stability Study, Inclinometer SI-6

End of Dixon Street

2 Mar2001

100

35

30

25

20

15

10

5

0

20

Displ.

(mm)

15

22 Nov20jl0

Displ.

(mm)

-2

I:J I'] 4/125.3 m

-4

-6

-8

-10

-12

-14


1Jan2001 21 Jan2001 10 Feb2001

Displacements shown are in the B Direction

0 20 8040 60




2 Mar2001

100

0

-2

-4

-6

-8

-10

-12

-14

Documents

ame& - City of Quesnel · Inclinometer installations ... velocity plot has not been included for SI-5 due to the "wave-like" profile of the casing and ... depth offset and/or rotation