ML20040C996

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Affidavit of Rc Mason Re Contention 7 on Rock Overbreak. Shattered Rock for Lateral Distance Extending 20 Ft Beyond Perimeter of Containment Bldg Excavation & to Depth of 5 to 6 Ft & Beneath Fuel Bldg Removed
ML20040C996
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 01/19/1982
From: Mason R
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20040C961 List:
References
NUDOCS 8201290453
Download: ML20040C996 (15)
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{{#Wiki_filter:. UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of ) ) TEXAS UTILITIES GENERATING ) Docket Nos. 50-445 and COMPANY, et al. ) 50-446 ) (Comanche Peak Steam Electrfc ) Station, Units 1 and 2) ) AFFIDAVIT OF RAYMOND C. MASON REGARDING CONTENTION 7 (ROCK OVERBREAK) I, (Raymond C. Mason), being first duly sworn, do depose and state: I am Chairman of the Board of Mason-Johnston Associates, Inc. Mason-Johnston Associates, Inc. was responsible for developing procedures for the repair of fissures and fractures due to blast overbreak at Comanche Peak Steam Electric Station, Units 1 and 2. Under my direct supervision, Mr. Herbert C. Crowder-directed and observed others in the implementation of these repairs for certain areas delineated below. My educational and professional qualifications are attached to this affidavit. This affidavit addresses the rock overbreak and fissure repairs at Comanche Peak. During the construction of the foundation for seismic Category 1 structures at Comanche Peak, there were incidents of detrimental rock overbreak around the foundations of both Unit 1 and Unit 2 Containment Buildings and under the Fuel Building. Detrimental rock overbreak occurs when rock on

which, or against
which, a

foundation is to be placed shatters as a result of blasting during excavation. To repair this condition around the Containment Building excavations, we instructed others to remove the shattered 6201290453 820119 PDR ADOCK 05000445 C PDR n

rock. for ' a lateral! distance extending 20 feet beyond the. perimeter ok' ~ the'. Containment Building Excavation and to a depth of 5 - to 6 feet. In addition, all shattered rock beneath the Fuel Building was removed. The areas-from which the damaged rock was removed were then cleaned _by-blowing with compressed air and/or compressed air.and water in order to remove rock chips and du'st. This operation was conducted.immediately prior to placement of_ concrete. Class "C" concrete was then poured to replace the areas 'of damaged rock which had been excavated. This concrete meets the strength requirements specified in the PSAR, Section 2.6.5.1. In addition, fractures were identified in the. rock on

which, or against
which, the foundations for Unit 1

Containment, Unit 1 and 2 Safeguard Buildings and the Fuel Building would be poured. To repair these-fractures, grout pipes were first installed in the fractured rock before the foundation was laid. The locations of the grout pipes are identified in the February-23, 1978 letter (MJF-00250) from Mason-Johnston Associates,- Inc. to Texas Utilities Services, Inc. (Copy attached). ~ Grout pipes were installed by drilling a hole in the rock in such a manner that the bottom of the drilled hole intercepted the fracture. The grout pipec were then set in -the holes and the appropriate concrete. foundation placed. After the concrete foundation had cured for a minimum of 28 days, grouting operations began. Grouting was accomplished 'by inserting a grout tube to the bottom of the grout pipe and slowly pumping grout through the tube. To obtain and maintain proper pressure for grouting, the installed grout pipes were either extended or cut off to obtain the height 'that would, give the correct head pressure of the grout. A higher grout pipe allows a higher potential head pressure. .The top of the grout pipes were left open in order for excess grout to overflow and not over-pressure the system.

Grout was pumped into the grout pipe until a constant. head' level was obtained in the grout pipe and then the pump was shut off. This level was' maintained for 15 minutes and then the operation moved to the next grout pipe; if the level

dropped, more grout was pumped to achieve the specified level.

This sequence was repeated until the level remained constant for 15 minutes. -Those. pipes grouted under the direction of Mason-Johnston Associates are identified in the February 23, 1978 letter (MJF-00249) from Mason-Johnston & Associates, Inc. to Texas Utilities Services, Inc.* All other pipes were grouted under the direction of others. Raymond C. Mason this /2 day of Subscribed and sworn to before me January, 1982. / W Notary \\ l l Copy attached. L

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fN MAsox-JOHNSTGH & A SSOCIATES, mc. -. $i -geotechnical consultants .;.Q, ),y t / V;y- } inuring geology-soil mechanscs -[oundation engin 4 - ~~ k,. i wa: -rL. I IW[e t an o.. :g, rW r e 'M g f $1b umwo c. uson. r.n. 23 February 1978 cwsceg9rg+I "5" a-AlienlY D. VtNL8V, t.O t.E G. JfXAS UTIUTIES SEWICES .i / , C';U$*L"h.,, "hkoo:$9 y cmu abu. ni CVSES ConST. O m CE " ' = p vlCI-Pittif tedT, 'f. y F.se.ored Cea W i Mr. John Merritt Tdxas Utilities Generating Co*. P.O. Box 1002 _z.:..,. Glen Rose, Texas 76043 z .f }' Y- ~~3 Re: Texas Utilities Services, Inc. ^ Comanche Peak Steam Electric Station, 1980-19S2, Units 1 & 2; Grout Pipes, Completed

Dear Mr. Merritt:

By this letter, this office is notifying T.U.S.I. af completion of grouting of the following pipes; SGl-A thru E, FBA-A thru Y, and FDB-A thru C. The pipes in Safeguard Building 41 (SG-1-A thru E' can be cut flush to the existing floor level. The 2" floor topping will then cover the cut pipe. This action is for cosmetic reasons only. No additional cutting of the pipes completed in the Fuel Building is necessary. If there are any questions on this subject, please contact me. s .i' very truly yours, /

  • -y'~

j /,tL-t h t' j h :'c' I/9 u' t s*?"O% 4 Herbert C. Crowder Field Geologist S ? hg., .' D A - Mason-Johnston & Itssoc., Inc. ~ ~ ^7, HCC:ag 3" ja i I '1 G&H (lL) J.J. Moorhead r

3. i 1.

B&R (lL) U.D. Douglas l- -)' MJOAM (lL)_ W File"3700 ~ ?

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I '[ \\,, asa m3:ca ve.. CALLA,s. TexAa 7 ::s. s:4 cas.ssoo ~ , :.r i n ) MASON.IOHNSTON & ASSOCIATES, INC. .(./ ) geotechnical consultants engineering geoloc-soil mechanics-foundation engineering

  1. A FMCi!) C. MASON. P.E.

nisiotar F10YD F. JQM,57088, P.G. AUCRtY O. MtNLE Y, E.C., C.t.G. yn 23 February 1978 co"Suu^> 1 22::"El":.., - F1B'2Ti978 i~ 1:n::,n a w.- --- - -- Is.'.!!,'.5' E",'l MJF-0( 25'O ~- exa S s, Inc. P.O. Box 1002 .~ Glen Rose,. Texas 76043 2 - W.: lg[ ' [ Comanche nia @~ _ g( Texas L i s, Inc. [ Re: 9, lectric t. Station, 1980-1982, Units 1 & 2; Grout Pipes, I.D. Nu@~e g& Location

Dear Mr. Merritt:

4 By this letter, this office is assigning an identification mumber to each grout pipe in order to eliminate the confusion sometimes encountered when referring to grout pipe locations. The following is a table giving the building the pipe is located in, the I.D. number, and the coordinates of each pipe: Building I.D. No. Coordinate Safeguard #1 SGl-A N9545.90 E10516.18 SGl-B N9548.75 E10516.18 SGl-C N9586.17 E10520.32 SGl-D N9582.67 E10517.07 SGl-E N9582.67 E10521.~/4 SGl-F N9482.30 E10544.71.~. l SGl-G N9469.31 E10472.09 SGl-H N9482.00 E10594.00 Containment #1 Cl-A N9487.25 E10603.08

'~ ~ ?.; h .~ e AfAL9N.JO,HNSTCH a ACS";CIATES, mc. ~ ~i. < \\" geotechnical coruultants engineering geolog-soil mechanics-foundation engineering T 23 February 1978 Page Two Texas Utilities Services, Inc. MJF-00250 Building I.D. No. Coordinate Safeguard #2 SG2-A N9836.05 E10517.10 SG2-B N9869.33 E10518.00 SG2-C-N9957.98 E10474.25 SG2-D N9949.58 E10473. 75 - CT. ' ' J2, Fuel FBA-A N9679.05 E10603.72

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FBA-B N9676.65 E10603.38 aW FBA-C N9674.44 E10602.72 FBA-D N9670.45 E10602.86 ^ FBA-E ~ ~ N9669.21 E10602.45 %E FBA-F N9666.72 E10602.02 U?: FBA-G N9664.23 E10601.21 $[ FBA-H N9661.34 E10600.65 FBA-I N9658.45 E10600.10 FBA-J N9656.36 E10599.29 ~ FBA-K N9654.33 E10598.70 5 FBA-L N9651.84 E10598.44 FBA-M N9649.30 E10597.57 FBA-N N9647.05 E10597.02 FBA-O N9671.13 E10600.16 FBA-P N9672.12 E10597.77 FBA-R N9673.09 E10595.41 FBA-S N9674.03 E10593.43 FBA-T N9673.33 E10592.28 FBA-U N9670.85 E10592.22 FBA-V N9668.45 E10591.47 FBA-W N9666.25 E10590.71 FBA-X N9664.08 E10589.99 FBA-Y N9661.72 E10589.30 FBB-A N9646.25 E10624.00 FBB-B N964 3.5 2 E10620.50 FBB-C N9643. 85 E10617.43 FBC-A N9653.30 E10674.35 FBC-B N9652.15 E10672.46 FBC-C N9650.43 E10670.43 FBC-D N9648.65 E10669.74 t e

.'iihi$ ( 9 ** (- A'ACCN.JRNNSTCH a ASS:CIATES, c;c. Q m 'Y geotechnical consultants >~ - engineering geology-soil mechanics-foundation engineering 23 February 1978 Page Three Texas Utilities Services, Inc. MJF-00250 Attached are three plan sheets showing the grout pipe locations and their I.D. number. If there are any questions concerning this subject, please notify me. ~.y ?; 4 Very truly yours, Vi-f $u <h Herbert C. Crowccr Field Geologist Mason-Johnston & Assoc., Inc. HCC:ag I', ' ' Encis Dist TUSXE'('d5,'3A) 'J'."'ssrYitti' TUGCO QA (ll,3A) R. Tolson s,, B&R (lL,3A) 11 Douglas SC G&H (lL,3A) J. Moorhead MJA (lL,3A) R. Mason .Z. _ _ MJQAM (lL,3A) File 3700 t O

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F*A S $%=J ft H NsT OM a A S S C CI A T E S. IX C. SALLAs. TEXAS 6...... PRINCIPAL PROFILE NAME: Raymond C. Mason, P.E. TITLE: Chairman of the Board and Chief Engineer DATE OF BIRTH: August 28, 1919 EDUCATION: Southern Methodist University, 1937-1938; 1965-1967; 1970-1972 University of Texas, 1938-1940 University of Texas, BSCE, 1944-1945 PROFESSIONAL MEMBERSHIPS: Fellow, American Society of Civil Engineers Past Chairman, Expansive Clay Committee, Texas Section, ASCE Past Chairman, Soil Mechanics and Foundation Engineering Section, Texas ASCE Member, United States Committee on Large Dams Member, International Commission on Large Dams Member, National Society of Professional Engineers Member, American Consulting Engineers Council President, Consulting Engineers Council of North Texas State Director, Consulting Engineers Council Member, Earthquake Engineering Resear ch Institute Member / Panelist, American Arbitration Association Member, Chi Epsilon Honorary Civil Engineering Fraternity Member, Association of Engineering Geologists Member, International Society of Soil Mechanics and Foundation Engineering ......... - J

8 a Msec.Jtt HYSTCN & AS S CCI AT E S. 1%C. f* AL L t. S. T E X A S SERVICES MEMBERSHIPS: Lions Club International Boy Scouts of America, Scoutmaster and Commissioner Dallas Independent School District, Science Program Reviewer Dallas Woods and Water Club, Officer First United Methodist Church, Member, Official Board National Muzzle Loading Rifle Assoication Williamsburg Restoration Foundation, Patriot PUBLICATIONS, LECTURES, AWARDS, LISTINGS Engineers of Distinction, Engineers Joint Council 1973 Who's Who in Engineering, all editions Award of Merit, Asscciation of Engineering Geologists, 1973 Engineering Excellence Award, Consulting Engineers Council of Texas and American Consulting Engineers Council, 1978 for l Foundation Engineering on Texas College of Osteopathic 1 Medicine in Fort Worth, Texas l " Solution of Expansive Clay Foundation Problems, Bells Hill f School, Waco, Texas"; American Society of Civil Engineers Annual Meeting, Texas Section, 1958 " Transmission of the High Loads to Primary Formations", National Meeting American Society of Civil Engineers, New Orleans, Louisiana, 1960 1 seesesses cho

. e k T4 sEN=JSMNsten a As sect:Te s. INC. SALLAs. TEXAS 6...... " Investigation of Stress Transfer From a Drilled-In Concrete Shaft To A Primary Shale"; co-author, National Convention of Geological Society of America, Houston, Texas 1962 "Subgrade Soil Treatment At The Apparel Mart - Dallas, Texas", Engineering Effects of Moisture Changes in Soils; co-author, Texas A & M Press, College Station, 1965 " Design Procedures for An Earthquake Resistant Dam Meeting Requirements of the Atomic Energy Commission"; co-author, Four State Regional

Meeting, American Society of Civil Engineers, Amarillo, Texas, 1974

" Design Investigations of Expansive Clays (Time for Swell Equilibrium) and Pavement Sections At Dallas / Fort Worth Regional Airport"; co-author, National Meeting, American Society of Civil Engineers, Dallas, Texas, 1973 Special Lecturer, Graduate School of Engineering, Southern Methodist University,

Dallas, Texas,

" Foundation Engineering", Four Semester hours, 1964 Special Lecturer, Department of Economics, Austin college, Sherman, Texas; "The New Federalism Resulting From Federal Grants to Municipalities for Engineering and Construction", 1969 Special

Lecturer, Institute of Technology, Southern Methodist University, Dallas, Texas; " Practical Geotechnical Engineering, Case Histories";

Panel with Prof. Scott Mcdonald; 1975 Member of Board of Consultants (with Dr. Karl Terzaghi and Dr. Arthur Casagrande) for Brokopondo Dam, Surinam, SA for Grands Travaux de Marseille, Paris, France a -x-

8 e V PASGM.J2HMSTON 4 AS S OCIAT E S. IXC. DALLAS, TEXAS 6...... l Member of Investigative Board (with Mr. Kark Sevank, P.E.) re Failure of Walter Bouldin Dam, Coosa River, State of Alabama, 1975 Arbitrator, Dispute Between Home Buyer and Home Builder re Slab Foundation on Expansive Clays, Home Owners Warranty (HOW) Program, American Arbitration Association, 1978 Member of Investigative Board (with Dr. James L.

Sherard, P.E.,

Dr. Gary Reeves, P.E.), Stability of Brownwood Dam, Brown County, Texas, 1979 Missouri River Division Core of Engineers U.S. Army; Award of Merit for Patent Rights on Linear Shrinkage Apparatus, General Lewis A. Pick Special Invited

Lecturer, Master of Engineering Civil Program, Cornell University, 1981 "A

Multi-Disicipline Approach to Geotechnical Studies in Weak Rock", International Symposium of Weak Rock, co-author, Tokyo, Japan, 1981 " Safety Evaluation and Required Rehabilitation of Lake Brownwood, Texas", co-author, XIV International Congress on Large Dams, Rio de Janeiro, 1982 .x

8 s NASAN-JnH: STO:1 & A S S CCf AT E S. IEC. DALLAS.TEIAS PROFESSIONAL EXPERIENCE AND SELECTED PROJECTS 1941 1950-U.S. Army Corps of Engineers with latest assignment being Division Soils and Foundation Engineer, Missouri River Division, with selected projects consisting of Fort Randall, Oahe and Garrison Dam on the Missouri River, Powerhouse at Fort Peck Dam, Distant Early Warning Radar sites, Strategic Air Command Facility at Offat Air Force Base, and other civil and military projects. 1950 to the Present - Founding Partner and current Chairman of the Board of Mason-Johnston and Associates, Inc., Geotechnicil Consultants. Projects have included more than one-hundred Earth Dams in France, Surinam and the United States; airfields in South America and the United States; Sewerage and Water Treatment Plants in the U.S. Trust Territories of the Pacific and in the United States; Multi-Story Office Buildings, Hardened Missle

Bases, Hardened underground Command Facilities in Saudi Arabia and the United States; as well as Nuclear Power Plants and Earthquake resistant Dams in the United States.

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