ML20093A420
| ML20093A420 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 07/02/1984 |
| From: | Quamme D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Harrison J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| CSC-7938, NUDOCS 8407100476 | |
| Download: ML20093A420 (17) | |
Text
- _ _
CORSum8fS Dean L Ocamme Power su, 3,a-,
Afidland Project Midland Project Po Box 1963. Mdand, MI 48640 + (517) 631-865o PRINCIPAL STAFF July 2, 1984 D/RA
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.1L SGA OL Mr John J Harrison, Chief EIC OI h
Midland Project Section DRMA FILE h U S Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137 MIDLAND ENERGY CENTER PROJECT MIDLAND DOCKET NOS 50-329, 50-330 REMEDIAL SOILS WORK AUTHORIZATION FILE 0485.16, 0655 SERIAL CSC-7938 We are enclosing the proposed list of work in accordance with the "NRC and CPCo Work Authorization Procedure" for the period between July 1, 1984 and July 31, 1984. Please review this work list and authorize the specific work items as established in the procedure.
Also enclosed is a Supplemental Work Activity List for August, 1984. Your review, comments and authorization of the specific work items as in accordance with the procedure are simil ly requested.
y DLQ/AEB/klw Attachment CC Administrator, Region III DSHood, NRR. Project Manager, Washington Midland Project Manager, Region III Midland Resident Inspector, Midland 8407100476 840702 PDR ADOCK 05000329 9g A
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1 C:ntumers Power Company Attachment to' Serial'CSC-7938
-Midlend Plant Units 1 &.2 WORK ACTIVITY LIST FOR THE PERIOD BETWEEN JULY 1, 1984 and JULY 31, 1984 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION GENERAL QUALITY PROGRAM 102351100 Approval of MPQP-2, Rev 1 A (10/22/82) 102351125 Approval of MPQP-1, Rev 7 A (09/27/83)
AUXILIARY BUILDING & FIVP UNDERPINNING PROGPJOI WEST FIVP 102150010 Install Anchor Bolts & Rods I (08/12/82) A (08/13/82)
(includes hardness test on rods, drill concrete & steel and tensioning)
EAST FIVP 112150010 Install Anchor Bolts & Rods 1 (08/12/82) A (08/13/82)
(includes hardness tests on rods, drill concrete & steel, and tension)
BUILDING MONITORING 132550027 Install strain gauges and terminate cables A (07/28/83)
(includes testing and calibration) 102050130 Rework Instrument Conduit and Cable for EX2 and A (01/30/84)
EX3 per Disposition on NCRs S-00561 and S-00563 102950125 Install vertical movement monitoring inetruments in A (02/28/84)
Control Tower Wall 136050043 Maintain Instrument System 3 (08/12/82) A (08/12/82) niO882-2439d173-164 JEKostielney 06/25/84
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2' s
f i C:nsumers Power Company" Attachment to Serial CSC-7938 jfMidlendPlantUnitsl'&'2
' WORK ACTIVITY LIST FOR,THE PERIOD BETWEEN JULY 1, 1984 and JULY 31, 1984 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION 132550050 Install, wire conduit and race.iay from pier 2 (12/13/82) A (12/13/82) to data room for Pier Instrumentation 165052021 Terminate Cables in Data Room & Terminal Boxes A (03/10/83)
& Pier Instrumentation 5
146050000 Maintain and monitor jacking load on installed. piers.and grillages A (01/30/84)
GENERAL TEMPORARY-DEWATERING 125150050 Continue Monitoring Utility Protection Pits (4) 3 (08/12/82) A (08/12/82)'
115150020 Continue Operation of Freeze System & Wells 3 (08/12/82) A (08/12/82) 522550020 Repair Six:(6) Existing Observation Wells (WB-1, WP-2, COE-10, PD-18, W-2, PD-38) 1 (04/05/83) A (09/23/83)
CRACK MAPPING (includes scaffolding platforms, ladders and extra-ordinary clean up) 142550100 Remove concrete surface.as required for crack measurements.
A (01/24/84) 102250200
-EPA (East &. West) 3-(08/12/82) A (08/12/82) 102250105 FIVP (East & West) 3 (08/12/82) A (08/12/82) 102250100 Control Tower & Remainder of Aux Bldg 3 (08/12/82) A (08/12/82)
GRILLAGE STRUCTURE AT PIER 8E 155055010 Install & Load Grillage Structure at Pier 8E 1 (09/17/82) A (06/20/83) l j ciO882-2439d173-164 JEKostielney 06/25/84 l
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.: 3 Ce=cusers Power Compa'ny cAttachment to' Serial CSC-79'38:
l~Midlcnd Plant. Units 1 & 2 WORK ACTIVITY LIST'FOR THE PERIOD.BETWEEN JULY-1,'1984 and JULY 31, 1984 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR AC. /ITY
. PREVIOUS REGION III REVISED ITEMS
.IDEN11FIER PROGRAM, WORK AREA & ACTIVITY-DESIGNATION GRILLAGE STRUCTURE AT PIER 8W 165055010 Install & Load Grillage Structure at Pier 8W 1 (09/17/82) A (06/20/83)
PIER E5 SUPPORT COLUMNS & GRILLAGE 155055020 Excavate for & install support columns next to A (03/30/84) l containment & install and load grillage structure I
at Pier E5.
(Including Instrumentation)
PIER W5 SUPPORT COLUMNS & GRILLAGE 165055020 Excavate for & install support columns next to A (03/30/84) containment & install and load grillage structure at Pier WS.
(Including Instrumentation) j PIER E3 155052135 Finger drift to, excavate, install and load Pier E3,2,3 A (06/15/84) 1 l
PIER W3 l
l 165052135 Finger drift to, excavate, install and load Pier W3 '
A (06/15/84)
I l
PIER E7 155052115 Finger drift to, excavate, Install and load Pier E7 ' '
l A (06/05/84)
PIER W7
,3 165052115
' Finger drift to, excavate,. install and load Pier W7,
A (06/05/84) l l ciO882-2439d173-164 JEKostielney 06/25/84 i
4 l
Con:umers Power Company Attachment to Serial CSC-7938 l Mid1 cad Plant Units 1 & 2 WORK ACTIVITY LIST FOR THE PERIOD BE1 WEEN JULY 1, 1984 and JULY 31, 1984 l
DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30,L1982 1
NEW OR ACTIVITY PREVIOUS REGION III
- l. REVISED ITEMS IDENTIFIER
' PROGRAM, WORK AREA & ACTIVITY DESIGNATION PIER E17
'155055068'
. Excavate, Install and Load Redesigned E-17 A (03/14/84) 155052075
' Drift to Pier E17 from E16. Excavate, install and load Pier E17.
A~(01/20/84)
-PIER W17 165055068 Excavate, install and load redesigned W17 A (05/16/84) 165052075 Drift to Pier W17 from W16. Excavate, install and load Pier W17.
A (01/20/84)
PIER E15 155052045 Drift to/ access pit'at Pier E15,. excavate and install Pier E15.
A (04/16/84)
PIER W15 165052045 Drift to/ access pit at Pier W15, excavate and install Pier W15.
A (04/16/84)
PIER KC5' 165052340 Finger drift to, excavate, install & load Pier KC5,,3 A (03/30/84) 1 PIER KC8 155052340 Finger drift to, excavate, install & load Pier KC8,2,3 A (03/30/84) 1 PIER CT3 165052080 Drift to, Excavate, Install & Load Pier CT3 '
1 (03/06/84) A (03/30/84) ciO882-2439d173-164 JEKostielney 06/25/84
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Cecausers Power Company Attachment to Serial CSC-7938 Midlend Plant Units 1 & 2 WORK ACTIVITY LIST FOR THE. PERIOD BETWEEN. JULY 1, 1984 and JULY 31, 1984 DEVELOPED IN. COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY' DESIGNATION PIER CTIO 155052080 Drift to, Excavate, Install & Load Pier-CT10,2,3 1 (03/06/84) A (03/30/84) 1 PIER CTS 165052105 Drift to, Excavate, Install & Load Pier CTS ' '
A (06/05/84)
PIER CT8 155052105 Drift to, Excavate, Install & Load Pier CT8 '
A (06/05/84)
DOWELS AT FIVP 155050325 Install dowels at east FIVP 1 (02/06/84) A (06/05/84)
(Drill Only) 165050325 Install dowels at west FIVP 1 (02/06/84) A-(06/05/84)
(Drill Only)
DOWELS AT EPA 155057320 Drill for and install anchor through bolts and vertical i
dowels in EPA 155055421 Drill for and install permanent wall upper bearing plates i
EWL C WAES 4
165055305 Install Level C Wales, West Side A (08/29/83) 155055305 Install Level C Wales, East Side A (08/29/83) i ciO882-2439d173-164 JEKostielney 06/25/84
6 C:ccusers Power Company Attachment to Serial CSC-7938
.Midlcnd Plant Units 1 & 2 WORK ACTIVITY LIST FOR THE PERIOD BETWEEN JULY 1, 1984 and JULY 31, 1984 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION' EXCAVATION ZONES 155052070 Excavate / Lag Zone Y3 1 (02/06/84) A (03/14/84)-
165052070 Excavate / Lag Zone Z3 1 (02/06/84) A (03/14/84) 155056007 MASS Excavate Zone Y-4A A (06/25/84) 165056007 MASS Excavate Zone Z-4A A (06/25/84) 155056009 MASS Excavate Zone Y-4B 165056009 MASS Excavate Zone Z-4B SUPPORT BRACKETS 152555010 Install Temporary Support Bracket at El 1 (11/16/83) A (03/14/84) 162555010 Install Temporary Support Bracket at W1 1 (11/16/83) A (03/14/84) 152555020 Install & Load Temporary Support Bracket @ Col KC-7 A (06/05/84) 162555020 Install & Load Temporary Support Bracket @ Col KC-5.89 & KC-6 A (06/05/84)
BRACE / STRUT E10 & E11 155055320 Install Brace / Strut E10 & 11 1 (02/06/84) A (03/14/84)
BRACE / STRUT W10 & W11 165055320 Install Brace / Strut W10 & W11 1 (02/06/84) A (03/14/84) siO882-2439d173-164 JEKostielney 06/25/84
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- T 7-Ccanumers Power Company
' Attachment to Serial CSC-7938 Midland Plant Units 1 & 2
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WORKACTIVITYLISTFORTHEPERIODBETWEENJULY'1,1984andJULY315.1984.
DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30,.1982 NEW OR-ACTIVITY PREVIOUS REGION III-REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION-E8 & E9 TIEBACKS 155055480 Install Tiebacks and Struts at Piers E2 through E9 A (06/25/84).
W8 & W9 TIEBACKS 165055480 Install Tiebacks and Struts at Piers W2 through W9 A (06/25/84).
LONG DRIFTS.
I 165052375 Complete Drift KC4 to CT1 A (03/30/84) 155052375 Complete Drift KC9 to CT12 A (03/30/84)
I 155052320 Drift From KC3 to 13ft East of KC4 A (09/23/83) 165052320 Drift From KC10 to 9ft West of KC9 A (09/23/83)
SERVICE WATER PUMP STRUCTURE UNDERPINNING PROGRAM POST TENSIONING SYSTEM 202555170 Post. Tensioning Tendon inspection & maintenance 3 (12/07/82) A (12/07/82)
DEWATERING 207050646
' Continuing Monitoring & Repair of the CWIS-SWPS A (09/27/83)
Hydraulic Seal niO882-2439d173-164 JEKostielney 06/25/84
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Conzumers Power Company-Attachment to Serial CSC-7938.
Midicad Plant Units 1 & 2~
t WORK ACTIVITY LIST FOR THE PERIOD BETWEEN JULY 1, 1984~cnd JULY 31,.1984-DEVELOPED IN COMPLIANCE WITH ASLB ORDER.0F APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION 207050387 Convert 7 Wells used on 72" pipe repair to support SWPS 1 (11/01/82) A (02/11/83) dewatering.
(Includes install new ejectors, temporary headers, operate, & maintain) 207050620 Activate, Operate and Maintain Dewatering System 1 (09/17/82) A (05/27/83)
ACCESS SHAFT & EXCAVATION 200050005 SWPS Soils Stabilization A (01/30/84) 200054000 Concreting of SWPS north floor trench and A (05/16/84) core drilling of through anchor bolt holes.
200054005 Exploratory chipping of SWPS Duct Bank crack A (06/15/84)'
207050781 Excavate, lag, brace and install wales and struts A (09/30/83) in upper east section of SWPS access shaft (soldier piles 14thru30-maximumexcavationtoEL618'-g" l
excluding localized excavation at pipe supports).
l 207050782 Excavate, lag, brace and. install wales and struts A (09/30/83) in upper west section of SWPS access shaft (soldier
. Piles 1thru14-maximumexcavationtoEL624'-9j excluding localized excavation at pipe supports).
207050783 Excavate, lag, brace and install wales and struts, A (05/16/84) pour and cure concrete mudmat in lower east section below elev 618'-3") 4(soldier piles 14 thru 30 -
of SWPS access shaft
, eiO882-2439d173-164 JEKostieluey 06/25/84 l
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Cen:umers Power Cem72,y Attachment to Serial'CSC-7938 Midland Plant Unitr. 1 & 2 WORK ACTIVITY LIST FOR THE PERIOD BETWEEN JULY 1, 1984~and JULY 31, 1984 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION 207050784 Excavate, lag,. brace and install wales and struts, A (05/16/84) pour and cure concrete mudmat in lower' west section below elev 624'-9") f,(soldier piles 1 thru 14 -
of SWPS access shaft PIER 1 207053005 Excavate Pier 1 A (06/15/84) 207050005 Set-up & perform plate load test @ Pier 1 207050015 Install and load Pier 1 PIER 1A 207053010 Excavate Pier IA A (06/15/84) 207054010 Install and load Pier IA BUILDING MONITORING 206050105 Crack Map SWPS 1 (09/17/82) A (03/10/83) o 206050101 Install Permanent Benchmark Covers 1 (09/17/82) A (04/20/83) 206050104 Baseline, Operate, and Maintain Instrument System A (09/01/83)
BORATED WATER STORAGE TANK FOUNDATION & TANK REPAIR PROGRAM UNIT 1 TANK 312150011 Construct New Ring Beam 1 (08/12/82) A (07/08/83)
(set forms & place rebar,. pour concrete) miO882-2439d173-164 JEKostielney 06/25/84
10 Crecumers Power Company-Attachment'to Serial CSC-7938 Midltad Plant Units 1 & 2' WORK ACTIVITY LIST FOR THE PERIOD BETWEEN' JULY 1, 1984 and JULY 31, 1984 -
. DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30,-1982 i
NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION 312550019 Reinstall Electrical Ductbank 2 (09/17/82) A (04/06/83)
'312550100 Install Instruments (includes' testing and calibration) 1 (11/01/82)
UNIT 2 TANK 322150011
. Construct New Ring Beam 1 (08/12/82) A (07/08/83)
(set forms & place rebar, pour concrete) 322550019 Reinstall Electrical Ductbank 2 (09/17/82) A (04/06/83) 322550100 Install Instruments'(includes testing and calibration) 1 (11/01/82) t CONSTRUCTION WORK IN SOIL MATERIAL PROGRAMS DIESEL FUEL SUPPLY LINES-722050001 Diesel Fuel Supply Lines-Install Missle Shielding A (05/16/84) 722050002 Excavate and backfill for DF0 supply lines 1 (11/01/82) A (05/16/84)
CATHODIC PROTECTION 752050001 Drill and replace annodes (au necessary) 1 (08/25/82) A (10/06/83) 752050002 Drill and install new annodes 1 (11/01/82) A (10/06/83) 4 CONTAINMENT TENDON ACCESS VENT HVAC i
l 9
802550020 Excavate for, Install.and Backfill Electrical Duct.
1 (09/17/82) A (05/16/84) 4 i
Bank and Equipment Pad for the Unit 2 HVAC Fan i
j miO882-2439d173-164 JEKostielney 06/25/84
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-11 Ccecumers Power' Company-Attachment-.to Serial'CSC-7938f lMidlcad Plant Units I &'2' WORK ACTIVITY LIST FOR THE' PERI'OD BETWEEN JULY 1, 1984 Land JULY 31;fl984 DEVELOPED IN_ COMPLIANCE WITH ASLB ORDER OF. APRIL 30, 1982 NEW OR ACTIVITY
' PREVIOUS REGION III REVISED ITEMS' IDENTIFIER PROGRAM, WORK AREA & ACTIVITY-DESIGNATION' DIKE MAINTENANCE-7 812550010 Normal dike maintenance in'Q areas A.(05/27/83)
PERMANENT DEWATERING PROGRAM 522150005 Install Remaining Wells 1 (09/17/82) 522550016 Install electrical equipment & conduit 1 (09/17/82) 522550021 Excavate, install and backfill header piping, el'ectrical 1 (09/17/82) conduit, and pumps (including equipment slabs and metering pits) 522550026 '
Assemble and wire pump control panels R
M,ISCELLANEOUS 942450200 Remove (excavation) temporary uncontrolled fill' located 1 (07/05/83) A (09/27/83) in Q areas (DWG C-45Q); as identified on NCRs and the OGSE action item logs, and backfill per Spec C-211Q 202550195 Remove unacceptable backfill & casing and replace with A (03/14/84) controlled backfill (SWPS).
miO882-2439d173-164 JEKostielney 06/25/84
1 Consumera Power Company Attachment to Serial CSC-7938 Mid1:nd Plant Units 1 & 2 SUPPLEMENTAL WORK ACTIVITY LIST FOR THE PERIOD BETWEEN AUGUST 1, 1984 AND AUGUST 31, 1984 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY PREVIOUS REGION III REfISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION AUXILIARY BUILDING & FIVP UNDERPINNING PROGRAM PIER E6 155053085 Excavate, install and load Pier E6,,3 1
1 PIER W6.
165L53085 Excavate, install and load Pier W6 '
PIER E4
~155052120 Finger drift to, excavate, install and load Pier E4,2,3 1
PIER W4 165052120 Finger drift to, excavate, install and lead Pier W4,2,3 1
PIER E2 155052379 Finger drift to, excavate and install Pier E2 '
\\
PIER W2 I
165052379 Finger drift to, excavate and install Pier W2 '
PIER CT2 165053075 Excavate, install and load Pier CT2 '
PIER CT11
,3 155053075 Excavate, install and load Pier CT11,
!oiO882-2439f173-164 JEKostielney 06/25/84 1
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Consumers' Power Company.
Attachment to Serial CSC-7938 Midicad Plant Units 1 & 2 l
SUPPLEMENTAL WORK ACTIVITY LIST FOR THE PERIOD BETWEEN AUGUST 1, 1984 AND AUGUST 31, 1984 DEVELOPED IN COMPLIANCE WITH ASLB ORDER OF APRIL 30, 1982 l
NEW OR ACTIVITY PREVIOUS REGION III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION EXCAVATION ZONES 155056303 Mass Excavate Zone Y-8 165056303 Mass Excavate Zone Z-8 SERVICE WATER PUMP STRUCTURE UNDERPINNING PROGRAM PIER 2 207053015 Excavate approach, excavate, install and load Pier 2 PIER _2A 207053020 Excavate approach, excavate, install and load Pier 2A UNDERGROUND PIPE REPLACEMENT, REBEDDING AND MONITORING PROGRAM SERVICE WATER PIPE REBEDDING 400050100 Install Sheeted Pits and Soldier Beams @ Area A 400050200 Install Sheeted Pits and Soldier Beams @ Area B 400050300 Install Sheeted Pits and Soldier Beams @ Area C (including 48" pipe repair) 400050400 Install Sheeted Pits and Soldier Beams @ Area D ciO882-2439f173-164 JEKostielney 06/25/84
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Co2cumera Power Company Attachment'to Serial ~CSC-7938
- Midlcnd Plant. Units.1 & 2 SUPPLEMENTAL WORK: ACTIVITY LIST FOR THE PERIOD BETWEEN AUGUST 1,.1984'AND' AUGUST 31, 1984 DEVELOPED.IN COMPLIANCE WITH'ASLB ORDER OF APRIL 30, 1982 NEW OR ACTIVITY
' PREVIOUS REGION'III REVISED ITEMS IDENTIFIER PROGRAM, WORK AREA & ACTIVITY DESIGNATION CONSTRUCTION WORK IN SOIL MATERIAL PROGRAMS MISCELLANEOUS 912450100-Excavate for, repair, backfill 12" condenser drain line 832450100L Excavate and_ backfill for Nitrogen Seal Tank Unit 1 832450200 Excavate and backfill for Nitrogen Seal Tank Unit 2 i
622450100 Excavate.and backfill for repair'of Deep Q Duct Bank near Pit 4 642450100 Backfill Utility Monitoring Pits 1, 2, 3 and 4 9324500100 Install' concrete slab at Oily Waste Building ziO882-2439f173-164 JEKostielney 06/25/84
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NOTES A single asterisk (*) in left hand column indicates the work activity is a new
-item.
A double asterisk (**)'in left hand column indicates the work activity description has been revised.
Designation 1 in the right hand column indicates additional information is required by NRC Region III on this critical activity.
Designation 2 in the right hand column indicates no additional information is required by NRC Region III on this critical activity.
Designation 3 in the right hand column indicates that the activity is not critical and work can proceed.
The date shown after the designation corresponds to the date of the NRC letter that provided the designation.
An "A" following the designation indicates that Region III has provided
' approval to proceed with the activity. The date following the "A" corresponds with the date of the NRC letter that provides authorization to proceel with the work activity.
A "R" in the right hand column indicates that previous designation or approval has been' recinded because of a significant revision to' the work activity or 90 days.has elapsed or is expected to elapse since the work was authorized without the work being initiated.
miO882-24'9c173-164 3
m
1 l
b FOOTNOTES e
1 Drift' Activity normally includes i
- 1. ' fabricate steel sets 2.
excavate 3.
Install steel sets (Hilti bolts as necessary) 1 4.
remove concrete-(as necessary) 5.
localized dewatering (as necessary)
[
6.
install wood lagging
]
7.
place mudmat i
8.
stabilize soil (as necessary)
- 9. : brace and/or rebrace
- 10. ' concrete invert 11.
slope layback 2 Excavate Pier activity normally includes 1.
excavate 2.
Leoncrete removal (as necessary) 3.
dewatering (as necessary)
-3 4.
fabricate steel lagging l
- 5.
Install steel lagging-6.
auger bottom of pit to determine hydrostatic water pressure & plug 7.- place mudmat 8.
stabilize soil (as necessary)
~8 Install &' load Pier activity normally includes 1.
fab & install embeds 2.
-fab & install reinforcing steel
-3.
install' telltales 4.
install Carlson meters 5.
place concrete 6.
-fab & install leveling & bearing plates,-jackstands
~
7.
install jacks t
8.
transfer load 4 Excavate Access Shaft' Activity Normally Includes:
1.
excavate 2.
fabricate and install steel lagging 3.
fabricate and install structural steel supports and bracing
- 4. ' place mudmat 5.- stabilize soil (as necessary) 6.
localized-dewatering (as necessary) 7.
support and protect utilities 5 Maintaining'and Monitor-Loading of Piers & Grillages This one activity is to eliminate the numerous activities used for maintaining loads of installed piers and
. grillages miO882-2439b173-164.
c - - -
. --.. -.-.. -.-