海外公路项目投标书.pdf

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1、NorthConnectNorthConnectAirport Link and Northern BuswayAirport Link and Northern BuswayTender DesignTender DesignPreliminary Advice on NorthernPreliminary Advice on NorthernBusway PavementBusway PavementHYDER SMEC JVHYDER SMEC JVAirport Link & Northern BuswayAirport Link & Northern Busway Project B

2、id Project BidPreliminary Advice on Northern Busway PavementPreliminary Advice on Northern Busway PavementCoffey (Hyder SMEC JV)PV-NB-01Preliminary220-PVNB01-00049-C-R0230 August 2007Sven PadinaWeeks WhiteAlan CloverSignature:Signature:Signature:CONSULTANT:DESIGN LOT:STAGE:DOCUMENT No.:REVISION No.:

3、ISSUE DATE:AUTHOR:CHECKED:REVIEWED BY:Doc. Ref.File Ref.Issue Date220-PVNB01-00049-C-R-02D:iknowdocsharedatacur_work95075674.doc30 August 2007Page 1 of 15NorthConnectNorthConnectAirport Link and Northern BuswayAirport Link and Northern BuswayTender DesignTender DesignPreliminary Advice on NorthernPr

4、eliminary Advice on NorthernBusway PavementBusway PavementHYDER SMEC JVHYDER SMEC JVRemove this page when final copy is submittedRemove this page when final copy is submittedDateDate22/8/200730/8/2007RevisionRevision010203AuthorAuthorSvenPadinaSvenPadinaCheckerCheckerWeeksWhiteWeeksWhiteDoc. Ref.Fil

5、e Ref.Issue Date220-PVNB01-00049-C-R-02D:iknowdocsharedatacur_work95075674.doc30 August 2007ReviewReviewRevision DescriptionRevision DescriptionAlan CloverFirst DraftAlan CloverFirst IssuePage 2 of 15NorthConnectNorthConnectAirport Link and Northern BuswayAirport Link and Northern BuswayTender Desig

6、nTender DesignPreliminary Advice on NorthernPreliminary Advice on NorthernBusway PavementBusway PavementHYDER SMEC JVHYDER SMEC JVTABLE OF CONTENTSTABLE OF CONTENTSPagePage1 11.11.11.21.21.31.31.41.4CONCEPT DESCRIPTIONCONCEPT DESCRIPTIONIntroductionIntroductionBusway DescriptionBusway DescriptionBus

7、way Design RequirementsBusway Design RequirementsDesign TrafficDesign TrafficBrief Requirements for Design TrafficBrief Requirements for Design TrafficDesign Traffic LoadsDesign Traffic Loads4 44 44 44 45 5551.4.11.4.11.4.21.4.21.51.51.61.61.71.71.81.81.91.9Subgrade ConditionsSubgrade ConditionsPrel

8、iminary Busway Pavement Assessment / Design ( No LRT ): Rigid Pavement DesignPreliminary Busway Pavement Assessment / Design ( No LRT ): Rigid Pavement DesignReviewReviewPreliminary Busway Pavement Assessment / Design ( No LRT ): Flexible Pavement DesignPreliminary Busway Pavement Assessment / Desig

9、n ( No LRT ): Flexible Pavement DesignReviewReviewIncorporation of Light Rail within BuswayIncorporation of Light Rail within BuswayReuse or Rehabilitation of Existing PavementsReuse or Rehabilitation of Existing Pavements6 67 79 9111112122 22.12.12.22.22.32.3ASSUMPTION / DEPARTURESASSUMPTION / DEPA

10、RTURESDesign Traffic LoadsDesign Traffic LoadsSubgrade ConditionsSubgrade ConditionsIncorporation of Light Rail within BuswayIncorporation of Light Rail within Busway13131313131313133 34 45 56 67 78 89 910101111RISKS / OPPORTUNITIESRISKS / OPPORTUNITIESOPERATION & MAINTENANCEOPERATION & MAINTENANCES

11、AFETY IN DESIGNSAFETY IN DESIGNCONSTRUCTABILITYCONSTRUCTABILITYENVIRONMENTAL IMPACTS & APPROVALSENVIRONMENTAL IMPACTS & APPROVALSENVIRONMENTALAL SUSTAINABILITYENVIRONMENTALAL SUSTAINABILITYADVANTAGES / DISADVANTAGESADVANTAGES / DISADVANTAGESOUTSTANDING INFORMATION / MATTERS FOR RESOLUTIONOUTSTANDING

12、 INFORMATION / MATTERS FOR RESOLUTIONRECOMMENDATIONSRECOMMENDATIONS141414141414141414141414141414141515Doc. Ref.File Ref.Issue Date220-PVNB01-00049-C-R-02D:iknowdocsharedatacur_work95075674.doc30 August 2007Page 3 of 15NorthConnectNorthConnectAirport Link and Northern BuswayAirport Link and Northern

13、 BuswayTender DesignTender DesignPreliminary Advice on NorthernPreliminary Advice on NorthernBusway PavementBusway PavementHYDER SMEC JVHYDER SMEC JV1 11.11.1CONCEPT DESCRIPTIONCONCEPT DESCRIPTIONIntroductionIntroductionThis report presents preliminary pavement design advice for the Northern Busway

14、(NB)tender design together with a discussion on preliminary assumptions made on design trafficand subgrade conditions.ThisThis preliminarypreliminary adviceadvice hashas beenbeen restrictedrestricted toto reviewreview andandcommentcomment onon thethe adequacyadequacy ofof thethe RequestRequest ForFo

15、r ProposalProposal (RFP)(RFP) BriefBrief pavementpavementdesignsdesigns only,only, presenting two separate design option reviews, one considering Bus onlytraffic in Busway, and the other considering the possible future inclusion of a Light Rail linewithin the Busway.The RFP Exhibit A, Annexure 1 Par

16、t 1 clause 5.3.3(c) presents specific minimumthickness pavement designs to be used for Busway applications.InIn lieulieu ofof developingdevelopingalternative pavement designs, to support early stage project planning we have onlyalternative pavement designs, to support early stage project planning we

17、 have onlycarried out an adequacy assessment of these designs based on the initial traffic andcarried out an adequacy assessment of these designs based on the initial traffic andsub grade conditions discussed in Sections 2.2.1 and 2.3.sub grade conditions discussed in Sections 2.2.1 and 2.3.Addition

18、ally it should be noted that this review of RFP pavement designs only providespreliminary LRT pavement advice, and detailed design and modelling calculations arerequired to more completely assess pavement thickness and reinforcing.1.21.2Busway DescriptionBusway DescriptionWe understand that the prop

19、osed Busway will be developed in two stages as follows;StageStage 1 1 (current(current development):development): Construction of the Interim Design comprising thefollowing key elements;1. A dedicated Busway from the southern connection north to Federation Street, includingbridge and trough structur

20、es.2. Addition of Bus-only lanes to Lutwyche Road, Truro Street and Roblane Street fromFederation Street to Stoneleigh Street.3. Dedicated Busway tunnel and trough structures from Stoneleigh Street to Gympie Road.StageStage 2 2 (possible(possible futurefuture development):development): Construction

21、of a dedicated Busway tunnellinking 1 and 3 above.Following completion of Stage 2 works a Light Rail Transport (LRT) line may also beincorporated within the Busway corridor to operate in conjunction with Bus operations.Provisions for LRT are to be included within pavement design and construction of

22、Stage 1Bridge, Trough and Tunnel structures.1.31.3Busway Design RequirementsBusway Design RequirementsThe pavement design requirements have been sourced from the following projectdocuments;Project Deed.Request for Proposal (RFP), 14 June 2007.RFP Exhibit A, Performance Specification (including all a

23、ttachments).Doc. Ref.File Ref.Issue Date220-PVNB01-00049-C-R-02D:iknowdocsharedatacur_work95075674.doc30 August 2007Page 4 of 15NorthConnectNorthConnectAirport Link and Northern BuswayAirport Link and Northern BuswayTender DesignTender DesignPreliminary Advice on NorthernPreliminary Advice on Northe

24、rnBusway PavementBusway PavementHYDER SMEC JVHYDER SMEC JV1.41.41.4.11.4.1Design TrafficDesign TrafficBrief Requirements for Design TrafficBrief Requirements for Design TrafficThe key tender requirements with respect to Busway traffic for pavement thickness designsare as follows;Design LifeDesign Li

25、fe(RFP Exhibit A Annexure 1 Part 1 Table A)Pavements for Busways, Bus stations, Bus stops, Bus only lanes, Bus lanes(Turostreet only) (other than wearing surfaces) 40 years.Pavement wearing surfaces 10 years.Design TrafficDesign TrafficPPP Co must design the Busway, Busway Stations, Bus Stops, Bus L

26、anes (Truro Streetonly) and Bus-only Lanes for a traffic loading (Nes) = 2.1 x 108 (per lane) which assumes a40 year Design Life. (RFP Exhibit A Annexure 1 Part 1 Clause 5.3.3 (b)PPP Co must design any other lanes which buses may use (other than Truro Street) for themaximum of: (RFP Exhibit A Annexu

27、re 1 Part 1 Clause 5.3.3 (d)(i) the design requirements of the relevant road authority (i.e. Council or QDMR) over theDesign Life; and(ii) the bus traffic loading as noted above plus the traffic loading as determined from PPPCos traffic model assessment of expected other traffic volumes and other ve

28、hicle mixesover the nominated Design Life.PPP Co must make all allowances for the future provision of LRT to operate within theBusway and must design and construct the Project Works to allow for the operation of LRTvehicles in collocation with buses within the Busway at some later date. (RFP Exhibit

29、 AAnnexure 1 Part 1 Clause 8.1 (a)1.4.21.4.2Design Traffic LoadsDesign Traffic LoadsAs the results from the tender design traffic model are not yet available, Design traffic hasbeen derived by only considering the RFP supplied Busway design traffic in dedicatedBusway and Bus only lanes. A resulting

30、breakdown of this RFP design traffic for both rigidand flexible pavement design are as follows;The number of standard axles of equivalent damage to the sub grade (Nes) = 2.1 x 108per lane for 40 year Design Life (as specified in the RFP)Estimated number of standard axles of equivalent damage to asph

31、alt (Nea) = 2.42 x 108Estimated cumulative heavy vehicles (HV) = 1.9 x 108Estimated cumulative heavy vehicle axle groups (HVAG) = 4.4 x 108Doc. Ref.File Ref.Issue Date220-PVNB01-00049-C-R-02D:iknowdocsharedatacur_work95075674.doc30 August 2007Page 5 of 15NorthConnectNorthConnectAirport Link and Nort

32、hern BuswayAirport Link and Northern BuswayTender DesignTender DesignPreliminary Advice on NorthernPreliminary Advice on NorthernBusway PavementBusway PavementHYDER SMEC JVHYDER SMEC JVThe assumptions used for this preliminary advice report in calculating the above Nea, HVand HVAG values are as foll

33、ows:1) In lieu of project specific Traffic Load Distributions (TLD) for buses (i.e. thedistribution of types of axle groups and the distribution of loads on each type of axlegroup), the Busway traffic load distribution derived from weigh-in-motion data from abus-only lane in the ACT has been used. W

34、e understand that this TLD has beenused for other Busway projects in Brisbane.2) The number of heavy vehicle axle groups per vehicle (HVAG) is assumed to be 2.33.Based on the presumptive TLD noted above, the number of equivalent standard axles perbus (ESA/CV) is 1.1. When calculated in accordance wi

35、th the Queensland Department ofMain Roads “Pavement Design Manual”, the following ratios are also derived:the ratio of the number of standard axles of equivalent damage to the sub grade (Nes)to the number of ESA is 1.0;the ratio of the number of axles of equivalent damage to asphalt (Nea) to the num

36、ber ofESA is 1.15.These estimated preliminary pavement design traffic loads may change when project trafficmodels and TLDs are produced. In accordance with the RFP requirements listed above,the design traffic loading in mixed used lanes (i.e., buses and other vehicles) has to betaken as the sum of t

37、he specified bus traffic and the other vehicle traffic and it has beenassumed that the latter is small in comparison to the bus traffic and can be ignored for thepresent.This assumption should be reviewed when the traffic in mixed use lanes isidentified.1.51.5Subgrade ConditionsSubgrade ConditionsAt

38、 the present time there is little specific information available on pavement subgradeconditions throughout the study area so the following assumed subgrade design CBRvalues have been adopted for the purposes of preliminary pavement design;Road header tunnels: Bedrock floor, CBR 20%.Cut and cover tun

39、nels and trough transition structures: Concrete base slab.Natural soils at grade or less than 1m of embankment fill: CBR 3%.It is assumed that in road header tunnels with a bedrock subgrade, a 300mm thick drainageblanket overlain by geotextile will be constructed beneath the pavement to controlgroun

40、dwater seepage.In accordance with technical standard PSTS101 “Checking Sub grade: Capping layer;Drainage Layer; Controlled Subgrade; Working Platform; Temporary Pavement; Verge”,where the subgrade has a design CBR less than 3% a capping layer will be required. It isanticipated that for some natural

41、soils the subgrade materials may have to be excavatedand replaced with imported materials to form the capping layer; for example a soil withdesign CBR 2% requires capping 200mm thick. Pavements with capping are designed ashaving a design CBR value of 3% at the top of the capping layer.In addition, w

42、here the natural soils have a swell (in the CBR test) of greater than 0.5% acontrolled subgrade is required with minimum thickness depending on the swell value. Forexample, for a design swell value greater than or equal to 2.5% and less than 5%, theDoc. Ref.File Ref.Issue Date220-PVNB01-00049-C-R-02

43、D:iknowdocsharedatacur_work95075674.doc30 August 2007Page 6 of 15NorthConnectNorthConnectAirport Link and Northern BuswayAirport Link and Northern BuswayTender DesignTender DesignPreliminary Advice on NorthernPreliminary Advice on NorthernBusway PavementBusway PavementHYDER SMEC JVHYDER SMEC JVrequi

44、red thickness of the controlled sub grade is 600mm.The working platform (seeSection 6) forms part of the controlled sub grade.1.61.6PreliminaryPreliminary BuswayBusway PavementPavement AssessmentAssessment / / DesignDesign ( ( NoNo LRTLRT ): ): RigidRigid PavementPavementDesign ReviewDesign ReviewTh

45、e RFP specifies that rigid pavements are to be used in the Busway at the followinglocations;Tunnels and Connection ramps.Busway Stations including through lanes, standing lanes and tapered approaches.Bus turnaround area at Kedron.Federation Street bus stop.Bus stops.The RFP designs have been assesse

46、d in accordance with the QDMR design manual andare presented in TablesTables 1,1, 2 2 and 3 3 following together with our recommended designamendments (highlighted in bold) required for design life and anticipated sub gradeconditions.In all cases the minimum pavement thickness nominated in the RFP i

47、ssatisfactory for the nominated bus traffic loading provided that shoulders are provided asdiscussed below.Additional design parameters used in accordance with the RFP and QDMR rigid pavementrequirements are as follows;Project design reliability = 97.5%JRCP dowelled and CRCP pavements, for which the

48、 required Load Safety Factor =1.25Rigid pavements will be provided with shoulders as follows;A shoulder made up of the same concrete and thickness as the trafficked lanebase concrete thickness, cast integrally with the trafficked lane concrete base andwith a minimum width of 0.6m outside the edge li

49、ne; orA shoulder made up of the same concrete and same thickness as the traffickedlane base concrete thickness, cast separately to the trafficked lane concrete baseand keyed and tied to the base, with a minimum width of 1.5m outside the edgeline.Doc. Ref.File Ref.Issue Date220-PVNB01-00049-C-R-02D:i

50、knowdocsharedatacur_work95075674.doc30 August 2007Page 7 of 15NorthConnectNorthConnectAirport Link and Northern BuswayAirport Link and Northern BuswayTender DesignTender DesignPreliminary Advice on NorthernPreliminary Advice on NorthernBusway PavementBusway PavementHYDER SMEC JVHYDER SMEC JVTableTab