ML20091E905

Forwards Independent Assessment of Underpinning,Weekly Rept 78 for 840301-17

ML20091E905
Person / Time
Site:	Midland
Issue date:	03/21/1984
From:	Lucks A STONE & WEBSTER, INC.
To:	Cook R NRC
Shared Package
ML20091E782	List: ML20091E818 ML20091E833 ML20091E870 ML20091E894 ML20091E900 ML20091E905 ML20091E925 ML20091E943
References
MPF-78, NUDOCS 8406010399
Download: ML20091E905 (15)

Text

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1 palNCIPAL STAFF

. STONE & WEBSTER MICHIGAN, INC. L6gjag y//saDPkY l 3E i

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United States Nuclear Regulatory Commission March 21,1984 Midland Site Resident Office Route 7, J. O. No. 14358 Midland, Michigan Ref. MPF 78 s

Attention: Mr. R. Cook DOCKET NO. 50-339/330 MIDLAND PLANT UNITS 1 & 2 INDEPENDENT ASSESSMENT OF UNDERPINNING REPORT NO. 78 A copy of the Independent Assessment of Underpinning Week]y Report No. 78 for the period of March 1,1984 through March 17,1984 is enclosed with this letter. Included as attachments are the minutes of the daily meeting 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 h.j. .. ,

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A. Stanley' Lucks Project Manager Enclosures '

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..J. 0.-No. 14358

' Midland Plant;

' thits 1 & 2

Independent Assessment of Underpinning

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Weekly Report No. 78 March 11, 1984 through March 17, 1984

, Personnel on Site Stone & Webster Michigan, Inc.

P. Majeski 3/13 - 3/17' D. Benvie 3/12 - 3/16 ,

R. Lykens 3/13 - 3/17 W. Kilker 3/11 - 3/13 D. Zito 3/11 - 3/16

L. Rouen 3/11 - 3/13

j. Parsons Brinckerhoff Michigan, Inc.

J. Oliveira 3/13 - 3/17 B. Metros 3/11 - 3/13 Meetings Attended i

Date Represented Purpose i

3/12 - 3/16 Stone & Webster Daily Assessment Bechtel Team Meeting l Consumers Power

, Parsons i

3/13 Consumers Power Inter-organizational _

Bechtel Meeting MPQAD i

- Stone & Webster

3/16 Consumers Power Project Soils i Bechtel i Meeting MPQAD .

{ Stone & Webster i IJnderpinning and Remedial Soils - Construction ,

{ Pier Kc-4: Placement of reinforcing steel end' concrete was completed.

j Pier W-16: Bell excavation was completed and bell support was instailled.'

' Piers CT-1/12: Bell excivation and support was completed. ' Bell reinforcind :

j steel and concrete was placed.

! Pier Xc-9: Bearing plates are being installed.

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Pier E-16: Bell excavation ma completed and bell support was installed..

Access shaft level "C" Wales: Templates to be 'used for fabrication of plates are being made.

SWPS: Installation of the first level wales for the soldier pile wall is in progress.'

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U[ N OT No. 14358

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' ' ' Midland Plant 4 thits 1 & 2

' Independent Assessmen.t of thderpinning I' EAssessment Team Observations - Construction. s Jacking of the E/W 8 grillages to increase the reserv ~

'in each grillage was observed by the Assessment .

e capacity Team .

load i the underpinning subcontractor reviewed the methodology a i

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.of risident thegeotechnical jacking operation and structural with engineers. the craftsmen. sMPQAD, e fiel

- appropriate forum to answer any questions thus rough ensuring a thoThis dis .

i understanding involved. of the entire jacking operation byonsall organizati at each grillage he. sequence of load application for the three cs sets of ja k ,

increments of

'each load increme,nt conformed with procedural loading and the time intervalrequirement between

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geotechnical instrumentation contractor.

engineers, ths underpinning ural and e

subcontr  ;

of data was expedient and accurate, allowing building and pier movement as jacking progressed on of immediate evalua at both grillages prior to lockingAcceptance criteria jacks.

was met off andngdeactivati the It is the opinion of the Assessmert Team that the orga i i

with the jacking operations at the E/W8 grillages operated n zations involved ~ i and loading knowledgeable manner allowing the jacking to be completed satisfactorily.

n an efficient acity.

for reserved cap j

! to the underpinning operationsng.inGood .

theprior utmost Auxiliary Build importance i- planning'and coordination enabled the Contractor to advance

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( concrete reinforcing steel placement'on installation short notice when it was determined a scheduleo

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i I expeditious completion of these criticalo assure piers.his is just o

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used demonstrated concrete placement. a good knowledge of proper The construction technique for this methods:

ficult Concrete was placed for the Kc-4 pier this week : .

- conformed with applicable proceduresco-ordinated -

esting and the activitie j

ment of the pier concrete was proper. Key items noted durin .

correct p

Concrete with applicable pmcedums. consolidation and in process y equipment. testing we were maintained at the placement-area ensuring an uninterru +

F It'is the opinion of the Assessment Team that placement of' operation. i confomed_ with applicable procedures resulting concrete'in a satisfactory i 1

nstallation. 1

. he Assessment Team noted that a lesson ary. Building- learned from i-n anchor bolts to be installed in the SWPS es for' e is .

wall, suf i

removed.in the area-of the planned installationngtoofallow mappi first layer of reinforcing steel'. his allows an evaluati the' for the bolt armngement which will minimize theoncuttin steel and expedite the bolt installation.

to-be made g of reinforcing '

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. 3 J. O. No. 14358

-Midland Plant

, thits 1 &' 2 -

Independent Assessment of Underpinning Assessment Team Observations - QA/QC s

' Compressive strength testing of pier Kc-9 concrete cylinders at the US Testing on site laboratory was overviewed by the Assessment Team. 1 Additionally, qualifications of the inspector .perfonr.ing the testing and certification of the compression machine were reviewed. Testing attributes considered include proper capping and moistening of concrete

! specimens, rate cf loading, and concentric application of load.

Compression stength testing observed by the Assessment Team conformed with procedural requirements and certifications of the inspector and the compression machine were found.to be acceptable.

The_ Ass a nt Team reviewed two work area controlled document stations

!- for proper posting of auaciment:5. One deficiency was found at each station. As a result NIR # 23 was issued.

The Assessment Team reviewed 300 Inspection Reports for completeness >

and proper certifications of inspectors. These reports covered inspections of twelve construction activities. All reports were found to be complete and the inspectors certified.

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Work Activity Packages No new work Activity Package overviews were reviewed during the past week.

Nonconfonnance Identification Reports The following Nonconfornance Reports (NIRs) remain open or have been closed during the past week.

NIR No. _ Description Status

' (Opened)(Closed) 22 Resident Ehgineering 2/21/84 i

Document Control

{- -Stations-l 23 subcontractor Work 3/13/84 i

Print Station

'Open Items Items discussed during meetings are categorized as follows:

OPEN ITEMS - An item for which an action is required. The ite:n will j remain open until the required action has been taken. -Tracking is required.

j CIDSED ITEM - An item, usually brought forward by the Assessment Team that.

is discussed and adequately responded to. No tracking is required.

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INFORMATION ITEM - An item, brought forward to provide general background i information regarding work, such as work status or an upcoming design change. No tracking is required.

l OPIN10N I1EM . An opinfon or suggestion, given by the Assessment Team i

expressing an alternate construction orquality assurance technique. The L

opinion or suggestion-is given as a possible alternate that may facilitate ~

. an operation.

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4 J.O. No. 14358 Midland Plant Units 1 & 2 Independent Assessment of Underpinning

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CLOSES ITEM -XX-XX - This notation identifies'an action that closes a previously identified open item. Tracking of the item stops.

'Ihe followir.g is a listing of all Open items from the Daily Meeting Notes with Bechtel and the text of the Weekly Reports. Carry-over items from past weep 3 which have been Closed this week are also listed.

Item No. Description Closure 64-7 QAP Review Program (Gen 64-10 Trend Analysis Open 71-17 Computerized Civil Open Drawing Register 71-29 Use of " Retired" FCBs Open 74-21 US Testing Corrective Open Action 74-25 Expansion Anchors Open 75-9 RE Document Control Open 76-14 lateral Wellpoints at 78- 0

, CT 1/12 77-4 Tracking of Attachments 78-2 to Design Documents m 77-12 FCR Processing Task Force Open 77-13 Drawing Attachment Stamp Open 77-29 QE Monitoring Activities Open 78-22 Concrete Truck Inspection Open

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l. $ a bd Project Engineer Project Managet J

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Notes of Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site -

Midland, Michigan March 12, 1984

• Present For:

Consumers Power Bechtel MPQAD Stone & Webster G. N rray J. Fisher J. McMaster W. Kilker E. Cviki R. Sevo L. Rouen

J. Gaydos D. Zito D. Benvie

_ Parsons Brinckerhoff B. Metros PURPOSE This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.

DISCUSSION Status Items Item 78 Auxiliary Building Underpinning Activities.

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Excavation of the bells for piers CT-1/12 is in progress.

Installation of the bell mudmat for pier Kc 4 has been completed.

Installation of the pier Kc-9 upper leveling plate has been completed.

Excavation of the pier W-16 bell is in progress. .

Installation of bell bracing and placement of the bell mudmat for pier E-16 has been completed.

Drilling for installation of a wellpoint in the E-16 drift to dewater the soil in the vicinity of the E-17 pier has begun.

(INFORMATION ITEN)

Item 78 Tracking of Attachments to Design Documents.

In response to an Assessment Team question concerning the tracking of attachments to design documents, E. Cviki provided the Assessment Team with a copy of the Project Engineering Procedurt, PEP 4.46.1. This procedure is used in the preparation , review, approval and control of engineering drawings. (CLOSES ITEM TI-4) l

Notes of Daily Meeting Independent Assessment of thderpinning Midland Plant, Units 1 & 2 Consumers Power Company s

Held at Midland Site Midland, Michigan March 12,1984 New Items Item 78 Document Review at Work Stations.

L. Rouen stated that during a review of controlled drawings at two work area stations,one deficiency was noted at each area. The first deficiency was a missing DCN to a drawing while the other involved

• a missing FCR. In both cases neither of the change documents were attached to the drawing nor were the documents identified in the block stamp on the front of the drawing. The Assessment Team requested FSO to determine why the documents were not attached or identified on the drawings. J. Fisher will respond. (OPEN ITEM)

Item 78 FSO Controlled Document Review.

J. Fisher stated that a monthly review of FSO controlled documents will be conducted by FSO on March 17 and 18. (INFORMATION ITEM)

Response Items No response items were addressed.

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Notes of Daily Meeting Independent Assessment of Underpinning )

Midland Plant, Units 1 & 2 Consumers rower Company Held at Midland Site '

Midland , Michigan March 13, 1984 Pf'esent For:

Consumers Powar Bechtel MPQAD Stone & Webster G. Mtirray R.

J. Fisher W. Kilker Wieland E. Cviki L. Rouen J. Gaydos D. Benvie Parsons Brinckerhoff B. Metros PURPOSE This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.

DISCUSSION Status Items Item 78 Auxiliary Building Underpinning Activities.

Installation of the bell support plates has been cortpleted in piers CT-1/12.

Reinforcing steel installation has began'in piers Kc-4.

Bell support W-16. channels have been set and the bell mudmat was placed for pier All rock bolts for the east level "C" wales have been grouted into placa.

(INFORMATION ITDi)

Item 78 Dewatering Control Tower Area.

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Fisher reported that installation of the lateral wellooints in the UATs to remove the perched groundwater beneath the Control Tower continues. Three of the four lateral drains have been advanced between 28 and 38 ft. into the backfill beneath the Control Tower. Drilling through fill concrete directly adjacent to the west UAT is in progress for the fourth lateral drain. (INFORMATION ITEM)

Item 78 NIR # 22 - Resident Ehgineering Document Centrol Review. >

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t Cvikl stated that in conjunction with the Resident Engineering response to the QAR concerning NIR # 22, MPQAD has requested Engineering to assess the impact , if any, of missing attachments to drawings on work being perfonned

{ by Resident Engineering. (NIR # 22 remains OPM) (INFORMATION ITEM) l 4

Notes Cf Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company

- Held at Midland Site '

Midland, Michigan March 13, 1984 New Items Item 78 Use of Injected Foam For Filling Tubular lagging Internal Voids.

J. Fisher stated that the underpinning subcontractor has proposed the r

use of injected foam to fill the internal voids of tubular steel lagging in designated areas of the SWPS and Auxiliary Building. A demonstration on the use of injected roam will be given today by the underpinning subcontractor. (INFORMATION ITEM) ~

Response Items Item 78 Document Review at Work Stations.

J. Fisher concurred that the two missing attachments noted during a review of controlled documents by the Assessment Team were inadvertently not attached or identified on the drawings. W. Kilker reported that NIR # 23 has been issued as a result of the niissing attacnments. (CLOSES ITEM 78-3)

(NIR# 23 will be tracked separately)

Item 78 Iateral Wellpoints at piers CT-1/12.

In response to the Assessment Teams request to review the opcration of lateral wellpoints installed in CT-1/12, J. Fisher stated that the Resident Geotechnical Ehgineer and the underpinning subcontractor had detemined that the system was functioning adequately at the time and therefore no adjustments were warranted. B. Metros questioned who would monitor the operation of the lateral wellpoints that are being installed in the UATs and what type of monitoring will be performed. J. Fisher wi',1 respond. (CLOSES ITEM 76-14) (OPEN ITEM) .

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Notes of Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan March 14, 1984 Present For:

Consurners Power Bechtel MPQAD Stone & Webster G. Murray J. Fisher R. Sevo R. Lykens R. Wieland

• E. Cviki P. &jeski J. Gaydos D. Zito D. Benvie Parsons Brinckerhoff J. Oliveira Part time .

PURPOSE h is meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.

DISCUSSION Status Items Item 78 Auxiliary Building Underpinning Activities.

he mudmats for piers CT1 and CT12 vill be placed today.

The two horizontal draine en the east side of the control tower have been

-advanced to 28 and 33 feet. The drains on the west side have beca advanced

, to 33 and 38 feet. -

J. Fisher indicated that Road &p meetings for installation of reinforcing steel in CT 1/12 are scheduled for 3/15 and 3/16.

(INFORMATION ITEM)

New Items Item 78 FCR Processing Task Force.

J. Fisher indicated that the kick off meeting for a task force to evaluate ways to facilitate processing of FCRs will be held tomorrow. Methods to facilitate NCR processing, which is considered to be less critical with respect to schedule impacts, will be begun at a later date. (Item 77-12 remains OPDO (INFORMATION ITEM)

Response Items i

here were no response items discussed.

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, Note] cf Daily Meeting Independent Assessment of Underpinning

. Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site '

Midland, Michigan N rch 15, 1984 Present For:

Consumers Power Bechtel MPQAD Stone & Webster G. Nrray J. Fisher R. Sevo r R. Lykens E. Cvikl J. McMaster P. Mjeksi J. Gaydos D. Benvie J. Blanchard Parsons Brinckerhoff J. Oliveira PURPOSE This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.

DISCUSSION Status Items Item 78 Auxiliary Building Underpinning Activities.

The mudmats for piers CTl and CT12 were placed yesterday. Placement of bell reinforcing steel will begin today.

The horizontal drain installation was completed yesterday on the east

~~ side of the control tower. The drain installatien on the west side is expected to be completed today.

(INFORMATION ITD4) '

New Items Item 78 Rejacking of W-8 Grillage.

D. Benvie asked if the W-8 Grillage is to be rejacked. E.

Cvikl responded that rejacking is expected to start today after lock off of the E-8 Grillage.

which was rejacked yesterday. (INFORMATION ITEM)

Item 78 NIR # 23, Document Review at Work Stations.

'J . McMaster indicated that a QAR has been issued to initiate response to NIH # 23 (INFORMATION ITEM) f Item 78 Review of Weekly Report No. 77.

7he text of Weekly Report No. 77 was reviewed. It was determined that all open items had been previously identified. (CLOSED ITEM)

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e Notes of Daily Meeting Independent _ Assessment of Underpinning 4 Midland Plant, Units 1 & 2 Consumers Power Company Held at Midland Site Midland, Michigan March 15, 1984 Response Item Item 78 Iateral Wellpoint at CT 1/12 .

In response to the Assessment Team question concerning responsibility for dewatering well performance (Item 78-10) , J. Fisher indicated that the responsibility to develop dewatering methods lies with the subcontractor, but is subject to RGE approval.- Monitoring of the fbnctioning and effectiveness of the dewatering system is the joint responsibility of the subcontractor and the RGE. (CLOSES ITEM 78-10)

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e Notes of Daily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2  ;

Consumers Power Company Held at Midland Site Midland, Michigan

&rch 16,1984 Present For:

Consumers Power Bechtel MPQAD , Stone & Webster G. Marray J. Fisher R. Sevo R. Lykens J. Mooney J. Gaydos J. Mc% ster P. Majeski J. Schaub D. Benvie R. Wieland Parsons Brinckerhoff None

, PURPOSE his meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 &'2.

DISCUSSION Status Items Item 78 Auxiliary Building Underpinning Activities.

The reinforcing steel in the bells of CT1 and CT12 is being installed.

Placement of concrete in the bells of CT-1 and CT-12 is planned for

, today and tomorrow respectively.

he rejacking of the W-8 grillage is scheduled for today.

We installation of the horizontal drains beneath the Control Tower is complete. It is anticipated that pumping will start soon.

(INFORMATION ITEM)

Item 78 QAP Review Program.

J. Fisher indicated that the full committee is planning to meet today to finalize its recomendations to management. (INFORMATION ITDf)

Item 78 20 - FCR Processing.

J. Fisher indicated that Field Engineers and Resident Engineers are going'on an overtime schedule to reduce the number of outstanding FCR's.

(INFORMATION ITEM) .

Item 78 21 - NIR # 23, Document Review at Work Stations.

PSO's response to the QAR regarding deficiencies in attachments to drawires at work stations will be transmitted to PFQAD today. (INFORMATION ITEM)

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. Notes of T1mily Meeting Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company s Held at Midland Site Midland, Michigan Nrch 16, 1984 New Items Item 78 Concrete Tmck Inspection.

D. Zito reported that he noted several pieces of hardened concrete were removed by the laborers from the grate at the concrete pump during placement of the concrete for Kc-4 Apparently these pieces of concrwte were an accumulation from the mixing blades of either the truck or the batch plant. W.e Assessnent Team does not have a concern about the quality of the concrete placed in Kc-4. However, this incident may be an indication that improvements in the periodic inspection program for the concrete trucks or batch plant are required.

D. Zito requested a copy of the procedures for the inspection program.

(OPEN ITEM)

Response Items No response items were discussed.

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Notes of Daily Meeting

' Independent Assessment of Underpinning Midland Plant, Units 1 & 2 Consumers Power Company s

Held at Midland Site Midland, Michigan

, March 12, 1984 Present For:

Consumers Power Bechtel MPQAD r Stone & Webster G. M2rray J. Fisher J. McMaster W. Kilker E. Cviki R. Sevo L. Rouen J. Gaydos D. Zito D. Benvie Parsons Brinckerhoff B. Metros PURPOSE This meeting is held each day to discuss items regarding the Independent Soils Assessment at the Midland Plant, Units 1 & 2.

DISCUSSION Status Items Item 78 Auxiliary Building Underpinning Activities.

, Excavation of the tells for piers CT 1/12 is in progress.

Installation of the bell mudmat for pier Kc-4 has been completed.

Installation of the pier Kc-9 upper leveling plate has been completed.

Excavation of the pier W-16 bell is in pr gress.

Installation of bell bracing and placement of the bell mudmat for pier E-16 has been completed.

Drilling for installation of a wellpoint in the E-16 drift to dewater the soil in the vicinity of the E-17 pier has begun.

(INFORMATION ITEN)

Item 78 Tracking of Attachments to Design Documents.

In response to an Assessment Team question concerning the trackirg,of attachments to design documents, E. Cviki provided the Assessment Team-with a copy of the Project Engineering Procedure, PEP 4.46.1. This procedure is used in the preparation . review, approval and control of engineering drawings. (CLO3ES ITEM 77-4)