ML20078J760
| ML20078J760 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 08/10/1983 |
| From: | Lucks A STONE & WEBSTER, INC. |
| To: | Cook R NRC |
| Shared Package | |
| ML20078J662 | List: |
| References | |
| MPF-46, NUDOCS 8310170627 | |
| Download: ML20078J760 (11) | |
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STONE & WEBSTER MICHIGAN, INC.
P.O. Box 2325. BOSTON. M ASSACHUSE'TTS O2107
. United States Nuclear Regulatory Commission August 10,4983
-Midland Site Resident Office
-Route 7 J. O. No. 14358 Midland, MI. 48640 Ref. MPF 46 Attention Mr. R.
Cook RE: DOCKET NO. 50-329/330 MIDLAND PLANTS - UNITS 1 & 2 INDEPENDENT ASSESSMENT OF UNDERPINNING REPORT NO. 46 A copy of the Independent Assessment of Underpinning, Weekly Report No. 46 for the period of July 31, 1983 through August 6, 1983 is enclosed with this letter.
Included as attachments, are the minutes of the daily meetings held during the week between members of the Assessment Team and Site Engineering, Construction, and Quality Assurance personnel.
If you have any questions with respect to this report, please contact me at 617-589-2067.
Very truly yours, W
bU 1:
A. Stanley Lucks Project Manager Enclosures ASL/pd I.
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AUG15ggg3 8310170627 831003 PDR ADOCK 05000329 0
J. O. No. 14358
.Midlend'Plent Units 1 & 2 Independent Assessment of Underpinning Weekly Report No. 46 July 31, 1983 through August 6. 1983 Pe'rsonnel on Site
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, Stone & Webster Michigan, Inc.
P.
Barry 8/1 - 8/6 W.
Kilker 8/4 - 8/6 B.
Holsinger 8/3 - 8/6 A.
Scott 8/1
,8/6 Parsons, Brinckerhoff Michigan, Inc.
V.
Madill 8/2 - 8/5 Date Represented Purpose S/1 - 8/5 Stone & Webster Daily Meetings Bechtel Consumers Power Parsons 8/4 Stone & Webster Weekly Schedule Bechtel Forecast Meeting Consumers Power Activities Construction:
Pier ES:
The transfer frame inscallation was completed. Jackstands and jacks were being installed and instrumentation installation was near completion.
ES Grillage:
The containment mat drop pit excavation was completed and pre-paratory work on the upper leveling plates continued.
Pier E10:
The pier remained on active jacking throughout the week.
Pier KC11:
The pier was rejacked in order to verify the tightness of the i
wedges.
Pier WB:
The transfer frame installation was completed except for strut modifications that required a shop rework. The instrumentation installation was near completion.
W8 Grillage: Similiar activity to E8 Grillage.
Pier W10: Similiar to E10 pier activity.
KC):
Similiar to KC11 pier activity.
SNPS:
The Stop Work Order was lifted and well and soldier pile installation resumed. Several observations wells were completed and 2 soldier piles were installed. Sheeted pit work continued and work on the service witer line resumed after temporary support of a duct bank was completed.
'I BWST:
Sandblasting was completed and installation of shear connector bolts continued.
The concrete mudmat was placed and the area surrounding the mudmat was prepared for backfilling.
The Stop Work Order on the installation of anchor bolts was lifted.
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.J. O. No.-14358 Midland Plant
' Units 1 & 2
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- 2ndependent Assessment of Underpinning Activities
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Quality Control Observed MPQAD training of QC inspectors to the current revisioE of area w)1 ding Project Quality Control Instruction ( PQCI )
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Reviewed the adequacy of the revision of the proposed PQCI for area welding inspection.
Observed a grout placement inspection and corresponding specimen preparation process. Reviewed the associated inspection report for accuracy and timeliness l
of completion.
Observations f
Construction:
The load transfer at piers E/W8 moved to near completion at a l
Very slow pace. Working within the constaints of very tight tolerances and detailed inspection criteria, the targeted completion of load transfer at piers E/W8 has already taken more than three months since pier construction commenced.
The Assessment Team believes that the Engineering, Quality Control and Construction organizations must initiate an evaluation of perform-ar,ce to-date in an effort to identify actions that could reduce the completion
. time without compromising quality.
It is the opinion of the Assessment Team that such a goal is attainable.
Observations Quality Control The QC. inspector training provided by MPQAD for the current revisions of the I
area welding PQCI was thorough, specific to each attribute and sub-attribute, and included ~ instructions on application of the referenced criteria.
The revision to the area welding PQCI clearly defines each inspection attribute.
The attributes include all inspections required by the project specifications and welding codes.
r The grout placement inspection, specimen preparation, and corresponding inspection report were in accordance with project requirements and good industry practice.
Work Activity Packages - The Assessment Team received Work Activity Packages
( WAP's) 38,44,45,47,50,51, and 53 for review. WAPs 38,45 and 47 were primarily electrical installations and were not subjected to revi*w.
All Team comments on WAP 53 were satisfactorily addressed.
Questions were submitted to the FSO C5nstructability Review group for' resolution on WAPs 44,50 and 51.
.fonconformance Identification Report NIR No.
Description
-[ Date e.
13 PQCI Attribute for Plate
( Opened )
( Closed )
Bearing Verification.
7/14/83 8/4/63
3 J. O. No. 14358 Midlcnd Plant Unita 1 & 2 Independent Assessment of Underpinning Open Items The following is a listing of all open items from the Daily Meeting Notes with Bechtel and the Weekly Meeting with MPQAD.
Carry over items fr6m past weeks which have been closed out this week are also listed.
-3 Closu'e Reference item No.
Description r
k'. R. 25, pg 5 Commitment to assess open training and personnel records.
W. R. 42, pg. 3 Commitment to evaluate Open response to Grillage Installation PQCI.
43-4Q Receipt Package Inspection Open 43-50 Grillage Installation Open Questions 44-7 Request for Chronology of Open Events Surrounding Eecccurrenceof Loose Washers on W6 N-S Bulkhead 44-20 Resolution of a Question on Open the Adecuacy of the Procedure on the Tieback and Strut j
Ir.sta11ations.
24-20 Grillage Beat Receipt Inspect-Open ion Package l
I 44-30 Status of Questions on Open l
Grillage Bea: PQCI l
45-8 Test Cylinder for New 46-1 Mix Designs with 60 Day Breaks 1
i 45-17 Existing Concrete Mix Open j
Slump Inadvertency Margin l
4 -19 SWPS Retaining Wall Questions 46-15 l
4d-10 Status of NIR # 13 46-13 4h-70 Status of QA NCR on QC Open-Certificatio'n
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45-80 Discussion on Mechanism Open -
of Identifying Quality Concerns.
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4 J. O. No. 14358 Midland Plant Units.1 & 2 Inde, pendent Assessment of Underpinning i
j Item No.
Description Closure Reference 46-14 Leveling Plate Overlap Open onto FIVP Mat i
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T-u)DL 4GLL Project Engineer Froject Manager 4
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Notto of Daily Mesting Indaptndant Assessmsnt of Underpinning
- Midland Plant Units 1
~2 Consumara Power Company
. Held.at Midland Site Location Midland, Michigan August 1, 1983 Present For:
Consumers Power Bechtel MPOAD Stone & Webster A_'."
Blocker J.
Fisher R.
Sevo A.
Scott"
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E.
Cvikl J.
Gaydos J.
Darby Parsons None Purpose This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.
Discussion Ite= 46 Test Cylinder for New Mix Designs with 60-day Breaks.
In response to the outstanding open item, J.
Gaydos stated that cylinders will be molded for 7-day, 26-day and 60-day concrete tests for concrete mixes E-5C and E-5C-H.
These mixes have the requirements of a 60-day concrete breaks. ( CLOSES OUT ITEM 45-8_)
Iter 46 E/WE Grillage Leveling Plates.
A.
Scott requested status of leveling plate installation recuired for E/WE Grillage Beams.
A DCN requires pressure grouting which necessitates a connection being installed in each plate. Upon issuance of an FCE to install couplings in the leveling plates work will proceed.
( CLOSED : TEM i 66 Y
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Notsa of Daily Mesting Indapandant Assss:mant 9f Undarpinning
' Midland Plant Units 1 2
Consumars Powar Company Held at Midland Site Location Midland, Michigan August 2,1983 Present For:
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Consumers Power
' Bechtel MPQAD Stohe & Webster Rk Wieland J.
Fisher R.
Sevo A.
Scott E.
Cvikl P.
Barry J.
Kelleher Parsons None l
rurpose Tnis meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.
Discussion
- Item 46 General Status of Field' Activities.
J.
Fisher reported that piers E/W 10 continue on active jacking, the deadmen continue to be cured and monitored for strength prior to excavation in the drop pits, the E/WS jackstands have been released for installation, and a drill permit is being prepared to allow chipping concrete to install grillage beam upper leveling plates.
( CLOSED ITEM )
Item 46 4 - SW?S Stop Work Order.
J.
Fisher stated that the Stop Work Order on the SWPS was released yesterday afterncen.
Today three drill rigs will resume work en installation of wells and soldier piles. ( CLOSED ITEM )
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Item t7 E/WS Grillage Beam Inspection.
J.
Fisher. stated that the NCR's on the Grillage Beam welding were adjusted to allow for any additional nonconformance observed during beam clean-up to be i
added to the original NCE.
A.
Scott stated that MPQAD was bringing in an in-house welding engineer to review the NCR's on the Grillage Beam.
( CLCSED ITEM P Item 46 Field Activities.
A.
Scott stated that there appeared to be six items of wcrk on the E/WS Grillage
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Beam installation that could be accomplished instead of the idle time that exists now in both drifts. A list of these items was provided and J.
Fisher said he would investigate. (OPEN ITEM) 0
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Notes of Daily Meeting 8
Indepsndent Asssssma of Undarpinning Midland Plant Unito 1 & 2 consumarm Power Company
,Hel'd,at Midland Site Location Midland, Michigan August 3, 1983 Present For:
3
. Consumers Power Bechtel MPQAD Stone.& Webster
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.None J.
Fisher G.
Carpenter A.
Scott E.
Cvikl P.
Barry L.
Weight Parsons V.
Madill Purpose This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.
Discussion Ite: 46 General Status of Field Activities.
L.
Weight reported that work on the BWST for the next few days would consist of stripping forms from the mudmat placement, backfilling along side the mudmat, and grouting shear connectors.
The electrical conduit installed for the Auxiliary Building underpinnir.g instrumentation has to be moved because cf future interferences and load transfer cannot be accomplished on pier E/WE until this is cer;1eted.
J.
Fisher reported that load transfer for E/WE is scheduled for later this week.
Concerning A. Scotts' observation in Ite 46-6, J.
Fisher stated these items were not worked on because of the survey verification, a required Mergentime shop drawing, and an FCF. describing grouting details were not ec pleted until yesterday. Work is starting on tnese items and on the center drop pit today.
J.
Fisher reported that work in the SWPS resumed yesterday and that one scidier pile was completed today. ( CLOSES OUT ITEM 46-6 )
Ite: 46 Drawing Revisions to Incorperate FCR's etc.
P.
Barry scated that the drawing showing the drop pit was difficult te follow because of the number and co=plexity of drawing change documents attached even though this number was still within tne limits of their program.
E.
Cviki reported that project engineering will start to up-date drawings when five change documents, not including one-time de*/ia-tions, are issued against the drawing.
More change documents can be Issued while the drawing is being revised. ( CLOSED ITEM )
GIte: 46 Lagging for SWPS Piers.
E. Madill requested the status of the lagging drawings for thk-SWPS piers.
The lagging for the soldier beam sheeted pits has been -supported during installation prior to backpacking by metal straps hung from the lagging above.
This is similar to the erection details for the Auxiliary Building pits but no erection details were provided on the design drawings. Will the details for the SWPS pier lagging be shown on the drawing? ( OPEN ITEM )
Notas of D ily Meating Indaosnd;nt Asssssm:r' of Undcrpinning Midicnd Plant Units i2 Consumero Power Company
- Held 'at Midland Site Location Midland, Michigan August 4, 1983
..Present For:
}CensumersPower Bechtel MPOAD Stone & Webster R. Wieland J.
Fisher G.
Carpenter A.
Scott E.
Cvik' P.
Barry J.
Gaydos W.
Kilker Parsons V.
Madill Pu rpos e This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.
Discussion Iter 46 BWST Foundation Crack Mapping.
E.
Cvikl stated that Resident Engineering has reviewed the crack mapping new that sandblasting is complete.
The Engineering decision is that no additional crack grouting is required. ( CLOSED ITEM )
Iter 46 Weekly Schedt. ling Meeting.
J.
Fisher reminded the group that every Thursday there is a =eeting where Eechtel field supervisors, etc. are familiarized with the Subcontractor's and 5echtel direct hire projected 3 week work schedule.( CLCSED ITEM )
Itet 46 E/We Grillage Eeam Leveling Plate Grouting.
J.
Fisher reported the plates require a nipple fitting modification since these plates will be pressure grouted rather than dry-packed.( CLOSED ITEM )
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Natcs of Dsily Mesting Indspsndsnt AsssasmInt i Undsrpinning Midland Plant Units 1 & 2 Consumers Power Company Neldat,MidlandSiteLocation Midland, Michigan August 5, 1983 Present For:
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Consumers Power Bechtel M?OAD Stone & kebster R.},Wieland J.
Fisher G.
= Carpenter W.
Kilker E.
Cviki P.
Barry J.
Gaydos A.
Scott Parsons Purpose This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.
Discussion Item 46 NIR # 13 Status.
i W.
Kilker reported that NIR # 13 was closed-out yesterday.
(CLCSES OUT ITEM 45-10.)
Item 46 E/WS Grillage Leveling Plate Building Overlap.
A.
Scott and P.
Barry stated that it appears one of the leveling plates for the grillage transfer Deams will overlap frem the EPA area ento the FIVP. Will this be a problem?
Z.
Cviki will verify the measurement and report on any required resolution. ( OPEN ITEM )
Item 46 Answers to Assessment Team Quest cns on SW?S Retaining Eracing Drawings.
E.
Cviki provided the Team with written answers to questions submitted by j
P.
Parish on July 26.
W.
Kilker stated the replies would be reviewed and any clarifications or additional comments forwarded if required.
( CLOSES OUT ITEMS 45-19 )
Item 46 SWPS Pier Lagging.
In response to a question of V.
Madill (-ref. Item 46-9 ),
J.
Fisher stated that the details for erection support need not be shown on the design drawings.
Each set of lagging is designed to function as a unit and it is the Subcon-tractor's perogative to strap or bolt sets together to facilitate the instal-lation. ( CLOSES OUT ITEMS 46-9 ).
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F Notsa of MPQAD Meating Indspandtnt Asrsssmsnt of Underpinning Midland Plant Units 1 & 2
' Held at Midland Site Location Midland, Michigan 5
Week of August 1 No Weekly M?OAD meeting was held this week.
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