ML20127C135

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Rev 1 to Const Work Procedure W-WP-2, Clam Shell Filter Blanket Placement
ML20127C135
Person / Time
Site: Waterford Entergy icon.png
Issue date: 10/15/1975
From:
J.A. JONES CONSTRUCTION CO.
To:
Shared Package
ML17198A241 List: ... further results
References
FOIA-84-455 W-WP-2, NUDOCS 8506220152
Download: ML20127C135 (5)
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Procedure No. W-WP-2 J. A. JONES CONSTRUCTION COMPANY CONSTRUCTION WORK PROCEDURE ,

FOR -

CLAM SHELL FILTER BLANKET PLACEMENT 6- .

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'r.WATERFORD SES UNIT NO.3 CONT NO. W3-NY-4 .

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8506220152 800222 DATE: /C /(.-/s' PDR FOIA

  • CARDE84-455 PDR l

e A J. A. JONES CONSTRUCTION COMPANY PAGE 1 0F 4 PROCEDURE no.

CONSTRUCTION WORK PROCEDURE W-WP-2 TITLE: REV. KO 1 CLAM SHELL FILTER BLANKET Pl.ACEMENT

& DATE: 10/15/75 PROJECT TITLE:

WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 1.0 PURPOSE To outline methods and techniques to be used by J. A. Jones and Subcontractors to handle,' place and compact Clam Shell Filter Blanket and mud slab.

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2.0 SCOPE .

This procedure includes the required references to be used by J. A. Jones and its Subcontractors to comply with approved construction drawings and specifications.

3.0 DEFINITIONS None

4.0 REFERENCES

4.1 Ebasco Services, Inc. Specification No. LOU-1564.482, latest revision.

" Filter and Backfill".

4.2 J. A. Jones Construction Work Procedure W-WP-9, " Slope Protection".

4.3 J. A. Jones Site inspection and Test Procedure No. W-SITP-2, " Clam Shell Fi1ter Blanket inspectlon".

4.4 J. A. Jones Construction Work Procedure W-WP-16, " Mud Slab Placing, Curing, Finishing and Repair".

5.0 RESPONSIBILITIES ,

'5.1 Ebasco Services, Inc. is responsible for furnishing, receiving inspection, acceptance, and testing of all required materials, the geotechnical mapping, release of area for clam shell fill, installation of instrumentation within .

the shell layer, compaction testing, release of shell foundation for con- '

crete mud slab and final test reports and acceptance of foundation placement 5.2 J. A. Jones and Subcontractors are responsible for the handling, placing and compaction of the clam shell foundation, the desi3 n, installation and operation of dreinage ditch and sump system, the guniting of final exposed vertical faces around the perimeter of the foundation .and installing con-crete mud slab.

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% . , p J. A. JONES CONSTRUCTION COMPANY PAGE 2 0F4 PROCEDURE NO.

CONSTRUCTION WORK PROCEDURE W-WP-2 TITLE: REV.ID 1 CLAM SHELL FILTER BLANKET PLACEMENT

& DATE:10/15/75 PROJECT TITLE:

WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 6.0 DRA INAGE - .

The drainage ditch and sump shall be installed per the J. A. Jones design, Twhich shall be reviewed by the Engineer.

3.,0,. GUN ITE Gunite shall be applied per requirements set forth in Reference 4.2.

8.0 EQUlPMENT 8.1 Spreading equipment shall be a steel tread bulldozer, size JD-450, or approved equal.

! 8.2 Compacting equipment shall be a 12 ton dynamic self-propelled smooth

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drum vibrating roller. .

8.3 Areas not accessable to the 12 ton roller shall be compacted with a vibrator plate, mechanical tamper, small vibratory roller approved by the Engineer.

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8.4 Rubber-tired. f ront-end loader or dump truck.

I 9.0 TRAFFIC Traffic on the exposed clay foundation material or the clam shell shall be limited to the spreading and compaction equipment. No vehicles shall be allowed on exposed silty-sandy foundation material in the excavated strip ~

without prior approval of the Engineer.

10.0 PROCEDURE .

10.1 Receive release by Engineer of completed sections of excavated strip prior to performance of work.

10.2 Receive direction from Engineer outlining area to be covered with filter cloth material. ,

l 10.3 Install furnished and approved filter cloth material on directed area.

Material shall be requested on Fom 136(X)/2-75.

10.4 Place furnished and approved clam shell material on area. to be filled.

Material shall be requested on Form 136(X)/2,f75.

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. J. A. JONES CONSTRUCTION COMPANY PAGE 3 0F 4

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PROCEDURE No.

CGISTRUCTION WORK PROCEDURE '

W-WP-2 IITLE: REV. NO 1

& DATE: 10/15/75 CLAN SHELL FILTER BLANKET PLACEMENT PROJECT TITLE:

f - WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 l 10.5 Spread the clam shell material in one layer such that the final compacted, l In-place thickness shall be 12 inches using the approved spreading equip-ment. Care must be taken to avoid damage to the filter cloth material, pore pressure Indicators, other Instrumentation and gunite. . Damaged materials and. Instrumentation must be replaced under the supervision of the '

Engineer.

10.6. Canpact the evenly spread clam shell using the approved canpacting equip-Compaction shall be uniform over the entire area. Compaction shall l ment.

be obtained by approximately 10 passes with approved equipment (one direc-tion of travel being defined as one pass) traveling at 1.5 to 3.0 mph and 1 vibrating at full vibration or as directed by Engineer with information '

based on canpaction test.

10 7 in areas unaccessable to 12 ton roller, compaction shall be reached by other approved means. These areas shall be compacted to the satisfaction i of the Engineer.

t i 10.8 The final compacted in-place thickness shall be fnzn 10 to 14.5 inches.

i 10.9 Assure the top of the shell filter blanket to be within .+f" -lh' of the i design elevation shown on the approved construction drawings. ,

11.0 MUD SLAB A concrete mud slab shall be installed over the Clam Shell Filter Blanket per Reference 4.4. .

12.0 GENERAL 12.1 All permanent exposed surfaces excavated shall be covered with clam shell or other approved protective materials each day to prevent disturbance of the exposed foundation material.

12.2 Personnel activity on any engineer-approved portion of the Clam.Shell Blanke or foundation material shall be kept to a minimum.

'12.3 Any contaminated or, unacceptable clam shell material shall be removed and replaced.

  • 12.4 Af ter random compaction tests have been performed by the Engineer, any area not meeting required compaction shall be recompacted and retested until the ,

required compaction is reached. ,

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i o y ', , - m J. A. JONES CONSTRUCTION COMPANY PAGE 4 0F 4 PROCEDURE NO.

CONSTRUCTION WORK PROCEDURE ~ p p, IITLE: REV. NO 1

& DATE:10/13/75 CLAM SHELL FILTER BLANKET PLACEMENT PROJECT TITLE: -

WATERFORD SES UNIT NO. 3 CONTRACT NO. W3-NY-4 12.5 Acceptable weather conditions shall be determined by the Engineer. In no case shall shell be placed during heavy rain or on top of or into a pool of water.

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12.6 All questions .regarding preparation, placement and protection of the com-pacted shell shall be referred to the Engineer. The decisions by the Engi-

.neer are final. No work shall start or continue without.the consent of the Engineer.

12.7 Upon completion of fill operations, slopes of any storage area shall be dressed up, any waste piles leveled off, and debris and trash created by the fill operation cleaned up.

12.8 Visual inspection by a J. A. Jones quality Verification inspector shall be performed on all operations to assure compilance with job requirements. No testing or test result documentation shall be performed by J. A. Jones in

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accordance with Reference 4.3 13.0 ATTACHMENTS None l

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