ML21305A863
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X LOCATION DATA FOR BREAKWATERS-COORDINATES POINT DESCRIPTION NORTH c-AST l-~O~,OO=*"'"~*-+---c"~3,929 30 1,146,642 .,,_, _ Rd11rarw;11 l, Wast Breokwo;iter I - - ~ * ~_ __,__ ._'-'~'°- I~_ 1,146,470 50 _ Centi,, 370' RadJu& i:..rve,A* 38*42' 48" 2-HIOOO\li' 633,74991 --'----"'*~'46=**~0~,~*~*_JC--'-e~c~c~-- __
8 633,365 9(l _ 1,145,930 )0 Unler, 960'Rodu5 c.un-.A~-30"21' 2r 7 58 6~*~*"----l--~'~'~-'~'~'~"*---1--'~--~46~-~*~"~*:,_,_'---+-'-'~"~'----~---== _
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IO+ 38 I I W 632,982 78 1,1,r.,33031 I ,l,u:;,936- 2 I Cenle~450°Rad1US CU~e,(J.* ~*34'09" West 13,eokwo!e, Tennonus 00 E W:Jroo9 To Boat 8i Baroe Masters O+OOOOE 632,916~4_L_ 1,148,14066 Refe,encet_,East8reokwoter
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., 1--- D 633,49285 U47,890 H 1,147,87'2 11 PC Cente,-;-585°Rodou, Cur-..,A-24*27'41"
" 4+99 76 E ~32,95290 1,147,64? vO PC C _ _ _ --
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8+15.19E 633,11477 1,147,37758 PRC F _632,534_!3 1,146,30189 Center, P.iQ Rod1u& CCIIVe,(J.* 16" 36' 31" l0+3260 E 633,226~- 1,147,19200 Ea~! 8r<1okwoler Term,nuo {If _!<1b<><il
~ - 0 2 60~,~+-~,-,~,.~2-14_39 ~147,219 43 Eo$1 8reokwal* Twm1flll1(lf Doloue)
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.. '. ELEVATION .'
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SECTION A-A
,, .. Vol* 6. 4l75d 3 I. 915d I 296 cu. ft., d
- 31 71*
D ,, .," j 508 cu. ft., d*4 1 31/2" Alternate Hexagonal Pattern
.. For Placement of Tr1bars HEXAGONAL ~TTERN FOR APPROXIMATION I IN PLACEMENT OF TRIBARS DEVELOPED VIEW OF SADDLE CHAMFER A""=".......
.......--OJ'L DIA8LO GENERAL LAYOUT CANYON SITE *u. ... - * -
T"'-8LE Of' CHANGES
. .. ..:a,H As Shown OF BREAKWATERS PN:IP'IC: GAS AND EU:(:TIIK: ~
"""" ,-,.ANCIM:0 CAL1.-o_,~ 439,8!)1 TRIBAR DIMENSJONS GENERAi. NoTES
... !0+3811 W - - - - - ,
- l. The parts of West Breakwater that were damaged during the wave storms of January 28, 1981 and November 13, 1981 shall be reconstructed to the same profile surfaces as the original and as-built designs, which are reproduced or elabora~ed with details on this drawing.
SEA SIDE BASIN SIDE
- 2. All structure and submarine terrain elevations shown on the three drawings of which this 1s NOTE: the first sheet refer to Mean Lower Low Water Datum. The relationship of Mean Lower Low Water Datum to Sea Level Datum is defined as follows:
0 STONE B Stone shall not be placed D STONE
= Elev. ald + 2. 6 1 over any of the toes of Tribar slopes in the restoration of r---
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" Elev. mllw West Breakweter. 1 [7eSTONE Elev. sld = Elev. rnllw - 2, 6' I
~ SO' -------I WEST BREAl<WATER-N'PROX. 7~75W TO TERMINUS TERMINAL CONE, WEST BREAKWATER 3. Horizontal coordinates on all these drawings are based on California Coordinate System, Zone V.
Conversions of D1ablo Plant Grid coordinates to Zone V coordinates is made as follows:
Nv = 576,067.06 + NPCOS 23* + Ep SIN 23" Ev= l, 161. 806. 12 - Np SIN 23'" + Ep COS 23'" .....
Ptlew Tr1bars placed 1n the restoration shall be 508 cubic feet size on the seaward slopes an on the terminal cone of West Breakwater Tr1bars on the 1 5 1 sheltered-side slope at West Breakwater shall ne 508 cubic feet size 1n OpM -*,O Sol.ft 1111 l:Jc.t.-,-~-~-, location where pieces that were carried away by waves are to be replaced If needed 1n Jo1n1n_g new Tr111ars to St&IO Jt.lOE--*
borders of intact Tr1bars, 296 cubic feet pieces may be used selectively to achieve a tight Junction or to fill 1n smaller open areas SEA SIDE BASIN SIDE -------1 ---+1'5' 5. In a geometrically perfect pattern (lOOo/o Pack) there would be (0. 1997 / d 2 ) Tribars per square foot of area as measured on the plane of the pattern. In the restorat10n a pack of not less than zo*.1.-* &otto,r,,o,-
90 per cent is required, i.e. there shall be not less than 9. 76 Tribars of 508 cubic feet size per tJ** 0 00 , - - *
- II Lowa, I, 000 square feet of true slope area. For the 296 cubic feet Tribars the comparable minimum required density 1s 14 Tribars per l, 000 square feet of true slope area.
0 STONE D STONE 6' The 508 cut11c feet Trtbars shall rest on E Stone, except on the 1 5 1 sheltered-side slope of West Breakwater, where they shal I rest on B Stone E Stone shal I vary 1n sJZe between 25 cuo1c feet for the smallest to 100 cu1J1c feet for the largest in the mixture, with 50 percent llY weight of the pieces ranging aoove and 50 percent I ranging below 50 tuo1c feet 1n size.
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EAST BREAKWATER- APPROX 5+00E 10 TERMINUS B Slone, VMy1ng tletween 15 and 60 cubic feet per piece and with 50 percent tly weight ranging eacl1 way from 30 TERMINAL CONE, EAST BREAKWATER cubic feet, shall be used under the 296 cubic feet Tr1bars and under e1t11er 296 or 508 cubic feet Tr1bars which are placed on the sheltered s1cle of the trunk of West Breakwater, Where only thin overlays of stone are needed to establ 1sh the specif 1ed base surface for pt!ac1ng 508 cubic feet Tr1::iars, B Stone may be used instead of E, subJect to approval 1n each instance by the Constructor
- 7. Pumped concrete ernbedment shall be placed 20 feet wide (plan dimension) at full thickness at the toe of slope at three locations on West Breakwater and along the full length of the seaward toe of East Breakwater. Straight aligned embedments (ribs} on the end of West Breakwater are all aligned either perpendicular or parallel with the breakwater tangent direction at Station
/ 10 + 38. llW and shall all be 15 feet wide at full thickness. Full thickness 1s achieved when the embedment concrete surface is at the midpoint of height of the embedded Tribars, i.e. nommally
/ 4. 3 feet thick where 508 cubic feet Tribars are embedded and 3. 6 feet for the 296 cubic feet Tribars.
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I The pumped concrete shall be designed for not less than 5,000 psi compressive strength at l8 days and shall be so proportioned as to take and keep very steep slopes when delivered by diver-I held and diver-manipulated discharge hose. It is not required that the embedrnent concrete be B 1--
"'~ - - * * - - - 4 ~ - - . __ ,,. I bonded or keyed into the Tribar concrete. Great care shall be exercised to preserve a concrete-free gap between ribs and through the interstices of the base stone zone on which the Tribars rt:t>t.
0 I \ The toe embedment described by Section A on drawing number PGE-05-0586 shall extend contin-Spacng b e t - pnls I \ uously across the high point of the toe between the -30 feet contours of the original bottom on lholl bt IIOI lta tllo"
,.20 he! - - lllon I \
either side. The two toe embedments shown on Section C-C on the same drawing shall extend across their respective high points between the -40 feet contours of original bottom on either side of the i
high points.
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- 8. Concrete and stone rubble lymg on the 3 : l terminal slope of West Breakwater and in the entrance I
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channel between West and East Breakwaters shall all be removed and disposed of or used as directed or approved by the Constructor.
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I I 9. Except10nal measures shall be taken to prevent any penetration by fresh concrete into the voids of the B Stone under the crest blocks, The entire length of the West Breakwater's crest shall I
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~ I be t,qo,ilatarally
.,aced ot Gf1P..,ma11on
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\ ..... I have the seaward face of the block above elevation+ 16 feet sloped back at 30'" from the vertical, as shown by the detail on this drawing.
"*FC'I'<' ,..._,;.~p,,u1vr waned or sloped for 1.r. \* \ ' \ IO, ro 1~8<? FZECON<::>Tl<!UOTION OF WEST l!>~KW,ATEFZ ,;;ee. t;,009~18-I ~ 10
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PAOFIC GAS ANO ELECTRIC COMPANY a
PLAN ANO SECTION AT CREST CONSTRUCTION JolNTS RESTORATION OF WEST BREAKWATER AT DIABLO CANYON INTAKE BASIN IMPROVEMENTS LAYOUT, DETAILS,NOTES SPECIFICATK>N NO 6946 OMAR J. LILLEVANG A 5HAPwG OF TRIBAR SURFACE AT TRANSITION COISLLTNG ENGINEER
-N WEST BREAKWATER TERMNJS 13601 Whltbw etYd OnNn By M. P. WADE °""""'
......... D<rte 5/14/82 N...--
GE-05-0584 UNITS I S. 2 MICROFILM BILL Of MATL CIVIL - PLAN, SECTIONS S. DETAILS DWG LIST
.c SUPV. BY OJM
'L DSUN. BREAKWATERS - RESTORATION S. IMPROVEMENTSl--'s'-"u,___.PS._.,Ds=--------,-o
\)f.l:, mo Ot) ENG. Cii, ENG. OWN.
SUPSD BY 2 --EC ,t/ KD.
DIABLO CANYON OR CONST UCT/ON 6946 0.K.
DATE 7-27-s2 OFPARTMENT OF ENG!Nl::ERING NO. DATE DESCRIPTION REVISIONS GM/SPEC OWN. CHKO. SUPV. APVO. BY NO. DATE DESCRIPTION REVISIONS GM/SPEC OWN. CHKO. SUPV. AP'VO. BY NO. DESCRIPTION REVISIONS W/SPEC OWN. CHKO. SUPV. APVD. BY t: SCALES AS SHOWN PACIFIC GAS AND ELECTRIC COMPANY SAN FRANCISCO, CALIFORNIA 468999 5 4 3 2 l
- INCH