- TD. THURBER ENGINEERING L ALBERT A TRANSPORTATION PEACE REGION (PEACE RIVER I HIGH LEVEL) INSTRUMENTATION MONITORING RESULTS FALL 2012 SECTION C SITE PH10: HWY 726:02, EUREKA RIVER 1. OBSERVATIONS Field Program and Instrumentation Status 1.1 One slope inclinometer (SI08-4) and one pneumatic piezometer (PN08-4) were read at the Hwy 726:02 Eureka River site on October 2, 2012 by Mr. Chad Gray, C.E.T. and Ms. Jessica Pryer, T.T., of Thurber Engineering Ltd. (Thurber). wheelbase and a RST Pocket The Sl was read using a RST Digitallndinometer probe with 2 f t readout. lnd inometer reading depths were defined as per cable markings with respect to the P C top of the inclinometer cas i ng . The pneumatic piezometer was read using a RST C108 pneumatic piezometer reader. 2. INTERPRETATION 2 . 1 General Sl plots for A and B directions are presented in Section D and are summa ri zed below. Wlere ltant plot (X direction) and rate of movement have also movement has been recorded the r e s u been provided. A B T 6 E 6 A 5 T : 7 8 0 4 3 8 1 4 6 0 F : 7 8 0 4 3 7 7 1 2 5 2 0 0 , 9636- 51 A v e n u e , E d m o n t o n , thurber . c a
- T H U R B E R Zones of Movement 2.2 Zones of new movement were not observed in SIOS-4 since the last set of readings in spring 2012. Zones of old movement are summarized in Table PH10-1 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. Interpretation of Monitoring Results 2.3 Since the last set of readings in spring 2012, SIOS-4 has registered an incremental movement o f 7.0 m to 8.8 m, corresponding to a rate of movement of 2.0 mm/yr. 0.6 mm at a depth o f PN08-4 showed a decrease in water level of 0.34 m. The results are presented in Table PH10-2. RECOMMENDATIONS 3 . 3 . 1 F u t u r e Work The area is experiencing continued slide movements, and should be visually monitored by TRANS personnel and the MCI when possible. As the boundaries of the slide extend across the road, any significant slide movement would cause traffic disruption. The instruments should be read again duri ng the spring 2013 program. Instrumentation Repairs 3.2 instruments need repair at this site. N o Date: November 29, 2012 Client: Alberta Transportation File : 15-16-276 Page 2 of 4 e- fi le: \\ H\15\16-276 rpt PH1 0 - E d m
- THURBER TABLE 1- PH10-1 EUREKA RIVER (SOUTH OF WORSLEY) F A L L 2012- INSTRUMENTATION READING SUMMARY Date Monitored· October 2 2012 0 TOTAL CHANGE IN RATE INCREMENTAL CUMULATIVE OF MOVEMENT MOVEMENT DATE RESULTANT RATE OF MAXIMUM RATE SINCE CURRENT OF SINCE MOVEMENT A T INSTRUMENT DATE MOVEMENT OF MOVEMENT PREVIOUS PREVIOUS PREVIOUS STATUS INITIALIZED NOTED DEPTH # (mm/yr) (mmlyr) READING READING READING SINCE INITIAL (mm/yr) (mm) READING (mm) 6 . 4 m m o v e r 1 3 . 1 t o mmlyr between O c t . 1 6 , 2 0 0 6 N I A N I A N / A 14 .3 m depth in 40" D e s t r o y e d S / 9 8 - 1 M a r . 8, 1 9 9 8 M a y a n d O c t . 2 0 0 5 d i r e c t i o n 3 7 8 . 2 m m over O c t . 1 3 , 2 0 0 0 1 4 0 . 8 mmlyrin S l s h e a r e d off 0 . 3m to 2 . 7 m N I A J a n u a r y 9, N I A N I A t h e S / 9 8 - 2 s e t a s a t 3m d e p t h i n S e p t . 2 0 0 1 2 0 1 0 g i n i t i a l r e a d i n 4 2 " d i r e c t i o n S/ s h e a r e d N I A S e p t . 27 , 2 0 0 3 N I A N I A S e p t . 2 4 , 2 0 0 2 N o t K n o w n N o t K n o w n S / 0 2 - 1 off a t 15m D u m m y p r o b e at g o t s t u c k N I A N I A N I A N o t K n o w n S e p t . 27 , 2 0 0 3 S / 0 2 - 2 S e p t . 2 4 , 2 0 0 2 N o t K n o w n t o p of S/ c a s i n g 7.8 mm over 1.8 to 16 . 5mmlyr N / A N I A 3 . 0 m d e p t h i n N I A i n M a y 2 0 0 6 6 0 " d i r e c t i o n S e p t e m b e r 2 4 , D e s t r o y e d S / 0 2 - 3 S e p t . 2 4 , 2 0 0 2 2 0 1 1 9 6 . 3 m m o v e r 7.9 t o 3 2 . 4 mm/yr i n N I A N I A p t h i n N I A 1 1 . 0 m d e 1 S e p t . 2 0 1 4 5 " d i r e c t i o n 12.6 m m o v e r 7.8 mm/yr 0.6 2.0 Jan. 20, 2008 7 m to 8.8 m depth Operational June 1 3 , 2012 0.0 SI08-4 in Feb. 2008 in 25° direction the monitonng mstrumentat1on forth1s site. PH10-1 (attached) prov1des a sketch of the approximate locat1ons of F 1 g u r e D a t e : N o v e m b e r 2 9 , 2 0 1 2 C l i e n t : A l b e r t a T r a n s p o r t a t i o n F i l e : 1 5 - 1 6 - 2 7 6 P a g e 3 of4 e - f i l e : \ \ H \ 1 5 \ 1 6 - 2 7 6 rpt PH1 0 - E d m
U R B E R T H TABLE 1- PH10-2 FALL 2012- EUREKA RIVER (SOUTH OF WORSLEY) PNEUMA TIC PIEZOMETER INSTRUMENTATION READING SUMMARY Date Monitored: October 2, 2012 CHANGE I N CURRENT PREVIOUS MEASURED WATER MAXIMUM WATER WATER TIP GROUND LEVEL CURRENT PORE PORE DATE LEVEL LEVEL DEPTH ELEV. I N S T R U M E N T # SINCE PRESSURE PRESSURE STATUS INITIALIZED BGS BGS (m) (m) (kPA) PREVIOUS (kPA) (m) (m) READING (m) 6 1 .0 NI A NI A NIA NIA 10.0 NIA Damaged PN02-1a (27712) NIA on Oct. 9, 2 00 7 38.0 N/A NIA N IA Damaged NIA PN02-1 (27710) NIA 19.0 NIA on May 25, 2006 7.0 NIA NIA N/A NIA Damaged on Sept. 27 , NI A PN02-2 (27711) NIA 14.5 2003 20.5 on June 13, 17.2 10.65 10. 31 -0.34 N/A 12.4 605.0 Operational PNOB-4 2012 the approximate locations of the monitoring instrumentation for this site. Figure PH10-1 (attached) provides a sketch of Notes: PN - pneumatic piezometer. BGS - below ground surface. D a t e : N o v e m b e r 2 9 , 201 2 C l i e n t : A l b e r t a T r a n s p o r t a t i o n F i l e : 1 5 - 1 6 - 2 7 6 P a g e 4 of 4 e - f i l e : \\ H \ 1 5 \ 1 6 - 2 7 6 rpt PH1 0 - E d m
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