DR1201-LR130816 AUG-15-2013 22:31 J
i i
C 10: ff(exias /C11‘,/1‘11 T,P Inc. P.01 if:f Construction Mate �es• GEE Consultants, Inc.
and Environmental a,�ansUlung
Post-it®Fax Note 7671 Date pages►
10044 Monroe Dallas, Texas 75229 (214) 35; ) /�Q n'�/ n[��J a _ ��
i� To` . ti`�R!! p. rl 1f i ; From T�! r'7 -�T) -ITK�.��
I,JJ Co./Dept. Gr v c,Cf r {\lS O L 1 • 1-{Jt;
Phone# 9-7 L.7,304_364 Phone#2 1/ 7(c`7._` 1S')^7
Fax# G 2..._3 _3_.70 Fax# z 4,37z„ 69 /Z
ANC I R OBSERVATION REPORT 11
Report Date: August 16,2013 Observation Date: August 12,2013
Client: City of Coppell Report No. 10
Project: Creekview Drive Roadway Improvements,Coppell,TX 75019
Identification: Active Anchor Drilling ;_ - � Project Number: 213-0134
�III Method of Test: Visual Observation ��/J 1 Page: 1 of 2
Anchor Depth to
No./ Shaft Bearing Required Actual Total Bearing Casing Remarks
Location Size Strata- Penetration Depth Material Depth
3AA 10" 6'0"* 25' 30' 36'0" Dark Gray Shale NA Dry
3AB 10" 6'0" 25' 30' 36'0" Dark Gray Shale NA Dry
3AC 10" 5'0" 25' 26'6" 31'6" Dark Gray Shale NA Dry
3AD 10" 6'0" 25' 26'6" 32'6" Dark Gray Shale NA Dry.
3AE 10" 10'0" 25' 22'** 37'0" Dark Gray Shale NA 6ry**
3AF 10" 6'0" 25' 30'6" 36'6" Dark Gray Shale NA Dry
3AG 10" 7'0" 25' 29'6" 36'6" Dark Gray Shale NA Dry
3AH 10" 6'0" 25' 30' 36'0" Dark Gray Shale NA Dry
3AI 10" 7'0" 25' 28'6" 35'6" Dark Gray Shale NA Dry 7
+' (�3C 10" 6'0" 25' 24'*** 33'0" Dark Gray Shale ***.-.../
3B 10" 6'0" 25' 27'**** 35'6" Dark Gray Shale NA Dry
Notes:
* Drilling completed prior to lab tech arrival on site.
** ARK utilized an approximate 33' 5" x 1-1/4" diameter threaded bar for all active anchors drilled on this date
except anchor 3B.Anchor bar assembly consisted of approximately 24'7"of exposed threaded bar below 8'x 3"
diameter PVC pipe sleeve(sealed with duct tape at top and bottom)and about 10"of bar exposed above PVC
sleeve. On completion of grouting, the anchor 3AE bar assembly was pulled up by ARK (above the Row 2
gabions)so that only about 22'of penetration into shale was actually reinforced with 1-1/4'bar.5'of penetration
into shale(below anchor assembly)was not reinforced with threaded bar.
*** Considerable water and sloughing of sandy soils above shale encountered by ARK during drilling of 3C.Gray
water and mud coated anchor bar assembly during insertion into 3C shaft.Based on ARK's extra effort to push
AUG-15-2013 22:31 P.02
Texas CMT,Inc. Project No.213-0134 Page 2 of 2
Project: Creekview Drive Anchor Observation Report No.10 Report Date:August 16,2013
anchor bar assembly into bottom of hole,tech estimated 3'of sloughing mud was present at bottom of hole prior
to grouting.Based on this estimate only 24'of actual grouted penetration was achieved for anchor 3C.
**** Due to complications with augers bouncing off the top ofthe shale the 3B anchor ended up being drilled at about
50 degrees above the horizontal plane.Considerable water,liquifaction and sloughing was encountered above the
shale at anchor 313.Estimated 2'maximum radius by 6'deep of sloughing at top of this anchor. On completion
of drilling operation gray muddy water was measured at 7'below top of Row 2.Approximate 12"diameter by 10'
piece of PVC was inserted into top of hole.Augers were then sent down hole again to attempt to clean out some
ofthe sloughing in this shaft and to allow insertion of anchor bar assembly.Tech estimated 2'A'of sloughing mud
was still present at bottom of anchor 3B, so net reinforced penetration was about 27'.
cc: Mr.Larry Davis-City of Coppell, Phone:972-304-3684;via Fax: 972-304-3570
Mr. George Marshall-City of Coppell,Phone: 972-304-3562;via E-mail:gMarshall @coppelltx.gov
Mr.Rod Lacy-The Fain Group, Phone: 817-927-4388;via E-mail:rlacy @faingp.com
Mr.Ernie Fields-Walter P.Moore,Phone:214-740-6251;via E-mail: efields @walterpmoore.com
Mr. Mark North-ARK Contracting,Phone: 817-478-7400;via E-mail: mnorth @arkcontractingservices.com
Texas CMT,Inc. TBPE Firm: F-4521 Reviewed b .
All letters and reports are for the exclusive use of the client to whom they are addressed and shall not be reproduced without the full approval of Texas CMT,Inc. The us of our name must receive
our prior written approval. Our letters and reports apply only to the sample tested and/or observed and are not necessarily indicative of the quantities of apparently identical or similar products.
TOTAL P.02