Stage 5S. Stage 5U. Stage 5W. Stage 5V. LEGEND Zone A - TC2 Foundation and Gravel Raft Extent of Gravel Raft Zone B - TC2 Foundation

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4 Stage 5W Stage 5V [ plotted: Wednesday, August 14, :18:08 ] [ computer operator: jrr ] [ Project: G:\Jobs\99\993399\12d\surv\EW\All S2-5\Geotech Stage 2-5\Geotech Stage 2 to 5 ] 2128 Stage 5U 2017 GRAVEL RAFT N.T.S. 498 Detail of Lot 499 Gravel Raft Type A 302 Stage 5S LEGEND Zone A - TC2 Foundation and Gravel Raft Extent of Gravel Raft Zone B - TC2 Foundation metres N.T.S. Scale Bar GRAVEL RAFT 369 and Extent of Gravel Raft Detail of Lot 370 Gravel Raft Type B Drawing Set Sheet origin of levels WIG1 cors surveyed no. amendment initial date designed G3 manager 1 of 3 surv.date J. Renwick drawn PLOT Foundation Areas Date: 14/08/2013 Scale: 1:0 (A3) Eliot Sinclair and Partners Ltd. This drawing and all its information is only to be used for the intended purpose and it is not to be modified or used for any other purpose without the written consent of Eliot Sinclair & Partners Ltd. All rights reserved. M. Allan Wigram Control Tower 71 Corsair Drive R.L m C.D.D. (Jan 2012) datum checked BUILDING FOUNDATION AREAS Original size mm WIGRAM SKIES - STAGE 5U, 5W & 5S FOR NGAI TAHU PROPERTY LTD. 20 Troup Drive, PO Box 9339, Tower Junction, Christchurch 8149, Phone: , Fax: , info@eliotsinclair.co.nz w w w. e l i o t s i n c l a i r. c o. n z

5 Original size mm Sewers and other services shall be laid above grid layer. It is essential that grid remains undamaged. Top of silt layer Top of gravel raft Water, power, telephone, gas, etc. laid above geogrid mesh reinforcment to gravel raft, to enter through side of foundation. Provide concrete cover to pipes where necessary. Gravel raft not required in Zone B. ROAD FRONTAGE PBX 0 Typical Strip topsoil to required depth within foundation area. DPC on 25mm sand blinding Typical layers Geogrid reinforcement - TX 160 Extent of gravel raft Building foot print foundation to edge of gravel raft Geotextile TYPICAL CROSS-SECTION THROUGH FOUNDATION AND GRAVEL RAFT Scale 1:50 (A3) Stormwater and sanitary sewers laid above plastic mesh reinforcement to gravel raft. PLAN - TYPICAL LOT & RAFT ARRANGEMENT Stage 5W Lots 497, 498 & 499 Plan view not to scale (See sheet 1 for dimensions to extent of gravel raft on individual lots) Zone A 385mm deep RibRaft foundation or equivalent including sand blinding 410mm. Zone B 305mm deep RibRaft foundation or equivalent including sand blinding 330mm. Engineer shall be notified on completion of excavation for services over raft and shall inspect the trench prior to any haunching or backfilling to confirm that the geogrid is undamaged. Lightweight building structure preferred Compacted silt Topsoil Finished ground level Notes Existing gravel raft in Zone A. See plan for extent. 1) Services entry details into side wall of foundation. Details by raft supplier. 2) Sewer and waste pipes to exit foundation through side wall of foundation. Details by raft supplier. 3) Plastic geogrid reinforcement in gravel raft shall not be penetrated or damaged by services installation. Fence post excavations may penetrate the upper layer of geogrid provided the hole diameter does not exceed 250mm. 4) This will require all services to be laid with a maximum of 650mm depth from ground surface to trench invert. 5) Should any geogrid be damaged during excavation the engineer will specify repair proceedure. 6) All under floor services and drains shall be installed within the concrete raft thickness. See raft suppliers details. 7) All connections between external drains and pipes within the concrete raft shall be accessible for replacement should ground movement occur. 8) Foundations shall not encroach closer than 1.5m to edge of gravel raft on all sides. See plan for dimensions to gravel raft. 9) These details are to be read in conjunction with the latest version of the Ministry for Business, Innovation & Employment "Guidance: Preparing and Rebuilding houses affected by the Canterbury earthquakes". 10) The gravel raft can be extended but any extensions shall be subject to specific design and construction observation by Eliot Sinclair & Partners Ltd. 11) Compacted silt layer & gravel raft shall meet the provisions of NZS 4431 "Code of Practice for Earth Fill for Residential Development". Drawing Set Sheet origin of levels surveyed no. amendment initial date designed G3 manager 2 of 3 surv.date J. Renwick drawn PLOT E1 sht 2 Date: 14/08/2013 Scale: 1:75 (A3) 1:100 (A4) M. Sinclair M. Allan datum checked RIBRAFT OR EQUIVALENT FOUNDATIONS TYPE A WIGRAM SKIES - STAGE 5W LOTS 497, 498 & 499 FOR NGAI TAHU PROPERTY LTD 20 Troup Drive, PO Box 9339, Tower Junction, Christchurch 8149, Phone: , Fax: , info@eliotsinclair.co.nz w w w. e l i o t s i n c l a i r. c o. n z [ plotted: Wednesday, August 14, :52:19 ] [ computer operator: jrr ] [ Project: G:\Jobs\32\324183\12d\DESIGN\EW\Ribraft Foundation\Ribraft Foundation ] Eliot Sinclair and Partners Ltd. This drawing and all its information is only to be used for the intended purpose and it is not to be modified or used for any other purpose without the written consent of Eliot Sinclair & Partners Ltd. All rights reserved.

6 Original size mm Sewers and other services shall be laid above grid layer. It is essential that grid remains undamaged. Top of silt layer Top of gravel raft Lower layer of TX 160 Geogrid reinforcement to be wrapped around gravel fill at ends and folded down to lap 2.0m with the TX 160 layer above Water, power, telephone, gas, etc. laid above geogrid mesh reinforcment to gravel raft, to enter through side of foundation. Provide concrete cover to pipes where necessary. PBX Strip topsoil to required depth within foundation area. DPC on 25mm sand blinding Typical layers Geogrid reinforcement - TX 160 Gravel raft not required in Zone B. Extent of gravel raft Building foot print foundation to edge of gravel raft Geotextile TYPICAL CROSS-SECTION THROUGH FOUNDATION AND GRAVEL RAFT Scale 1:50 (A3) ROAD FRONTAGE Stormwater and sanitary sewers laid above plastic mesh reinforcement to gravel raft. PLAN - TYPICAL LOT & RAFT ARRANGEMENT Stage 5W Lots 369, 370 & 371 Stage 5U Lots 366, 367 & 368 Plan view not to scale (See sheet 1 for dimensions to extent of gravel raft on individual lots) Zone A 385mm deep RibRaft foundation or equivalent including sand blinding 410mm. Zone B 305mm deep RibRaft foundation or equivalent including sand blinding 330mm. Engineer shall be notified on completion of excavation for services over raft and shall inspect the trench prior to any haunching or backfilling to confirm that the geogrid is undamaged. Lightweight building structure preferred Compacted silt Topsoil Finished ground level Notes Existing gravel raft in Zone A. See plan for extent. 1) Services entry details into side wall of foundation. Details by raft supplier. 2) Sewer and waste pipes to exit foundation through side wall of foundation. Details by raft supplier. 3) Plastic geogrid reinforcement in gravel raft shall not be penetrated or damaged by services installation. Fence post excavations may penetrate the upper layer of geogrid provided the hole diameter does not exceed 250mm. 4) This will require all services to be laid with a maximum of 650mm depth from ground surface to trench invert. 5) Should any geogrid be damaged during excavation the engineer will specify repair proceedure. 6) All under floor services and drains shall be installed within the concrete raft thickness. See raft suppliers details. 7) All connections between external drains and pipes within the concrete raft shall be accessible for replacement should ground movement occur. 8) Foundations shall not encroach closer than 1.0m to edge of gravel raft on all sides. See plan for dimensions to gravel raft. 9) These details are to be read in conjunction with the latest version of the Ministry for Business, Innovation & Employment "Guidance: Preparing and Rebuilding houses affected by the Canterbury earthquakes". 10) The gravel raft can be extended but any extensions shall be subject to specific design and construction observation by Eliot Sinclair & Partners Ltd. 11) Compacted silt layer & gravel raft shall meet the provisions of NZS 4431 "Code of Practice for Earth Fill for Residential Development". Drawing Set Sheet origin of levels surveyed no. amendment initial date designed G3 manager 3 of 3 surv.date J. Renwick drawn PLOT E1 sht 2 Date: 14/08/2013 Scale: 1:75 (A3) 1:100 (A4) M. Sinclair M. Allan datum checked RIBRAFT OR EQUIVALENT FOUNDATIONS TYPE B WIGRAM SKIES - STAGE 5W LOTS 369, 370 & 371, STAGE 5U LOTS 366, 367 & 368 FOR NGAI TAHU PROPERTY LTD 20 Troup Drive, PO Box 9339, Tower Junction, Christchurch 8149, Phone: , Fax: , info@eliotsinclair.co.nz w w w. e l i o t s i n c l a i r. c o. n z [ plotted: Wednesday, August 14, :24:27 ] [ computer operator: jrr ] [ Project: G:\Jobs\32\324183\12d\DESIGN\EW\Ribraft Foundation\Ribraft Foundation ] Eliot Sinclair and Partners Ltd. This drawing and all its information is only to be used for the intended purpose and it is not to be modified or used for any other purpose without the written consent of Eliot Sinclair & Partners Ltd. All rights reserved.