INSTRUCTION DRAINAGE IN CONNECTION WITH … DOCUMENT CASE OFFICER E-MAIL TELEPHONE 17 February 2014...
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DATE DOCUMENT CASE OFFICER E-MAIL TELEPHONE 17 February 2014 13/19328-1 Ulrik Mørch Jensen [email protected] +45 7244 2445 INSTRUCTION DRAINAGE IN CONNECTION WITH PHASE 4 1. PURPOSE This instruction describes the activities related to the detailed design for tendering and construction of drainage, which is carried out in connection with Phase 4: Project for construction. In connection with small construction projects, the similar phase is called Phase 3: Project phase The activities are in principle the same as for large construction projects, but may, depending on the given project, either be delimited in scope or joined with other activities. The main activities include ditch adjustment, project for location and design of stormwater basins, external drainage and contribution of necessary information for preparing material for land acquisition. On the basis of a road project and Water protocol, a detailed design is made of a complete drainage project for both internal and external drainage. Contributions for total tender specification for road project are prepared. Contributions include SC, SWS, QCR, TCB and BOQ for drainage-related topics as well as drawings (drainage plans etc.). Transfer and incorporation of drainage input for tender specification is made in close cooperation with the road designer, specific for each contract. This instruction is to ensure that the necessary initiatives, activities, decisions and quality assurances are made at the right times during the project. Drainage matters shall thus be clarified, settled and described so as to allow the preparation of the total tender documents. Thomas Helsteds Vej 11 DK-8660 Skanderborg [email protected] EAN 5798000893450 PO Box 529 Telephone +45 7244 2200 vejdirektoratet.dk SE 60729018
Transcript of INSTRUCTION DRAINAGE IN CONNECTION WITH … DOCUMENT CASE OFFICER E-MAIL TELEPHONE 17 February 2014...
DATE DOCUMENT CASE OFFICER E-MAIL TELEPHONE
17 February 2014 13/19328-1 Ulrik Mørch Jensen [email protected] +45 7244 2445
INSTRUCTION
DRAINAGE IN CONNECTION WITH PHASE 4
1. PURPOSE
This instruction describes the activities related to the detailed design for tendering and construction of drainage, which is carried out in connection with Phase 4: Project for construction.
In connection with small construction projects, the similar phase is called Phase 3: Project phase
The activities are in principle the same as for large construction projects, but may, depending on the given project, either be delimited in scope or joined with other activities.
The main activities include ditch adjustment, project for location and design of stormwater basins, external drainage and contribution of necessary information for preparing material for land acquisition.
On the basis of a road project and Water protocol, a detailed design is made of a complete drainage project for both internal and external drainage.
Contributions for total tender specification for road project are prepared. Contributions include SC, SWS, QCR, TCB and BOQ for drainage-related topics as well as drawings (drainage plans etc.).
Transfer and incorporation of drainage input for tender specification is made in close cooperation with the road designer, specific for each contract.
This instruction is to ensure that the necessary initiatives, activities, decisions and quality assurances are made at the right times during the project. Drainage matters shall thus be clarified, settled and described so as to allow the preparation of the total tender documents.
Thomas Helsteds Vej 11 DK-8660 Skanderborg [email protected] EAN 5798000893450 PO Box 529 Telephone +45 7244 2200 vejdirektoratet.dk SE 60729018
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2. ACTIVI TY DI AGRAM
The instruction covers the project course
Land acquisition
Planning/Project start
Stormwater basinsDimensioning and
design
Ditch adjustment ofdrainage longitudinal
profiles
Input for thepreparation of landacquisition material
Dimensioning anddesign of the
drainage system
Tender documents.Text and drawings
(digital)
Transfer forsupervision and project
follow - up
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3. DESCRIPTION
Activity Description
Planning/project start
In cooperation with the project manager, an assignment brief is prepared containing the performance specification, including financial estimate, time schedule and resource plan as well as a quality plan.
The drainage designer is responsible for plans within his own field being prepared.
Ditch adjustment of drainage longitudinal profiles
Data basis for road project (1st calculation).
On drainage longitudinal profiles with indication of ditch levels, it shall be marked which levels are to be changed, where ditches shall start, etc.
Drainage longitudinal profiles with adapted ditch levels etc. are incorporated into the road project. Updated road (2nd calculation) is carried out.
Stormwater basins. Dimensioning and design
Water protocol and relevant project basis from Phase 3 are reviewed and compared with the current road project.
Verification calculation of basin volume. Location and design to be adapted.
Activity Description
Input for preparation of land acquisition material
The basin, external pipes and other drainage elements outside the road reserve are drawn on the 1:1,000 plans for the current road project.
External pipes are drawn on the basis of current Water protocol provisions and small adjustments may be made where warranted by the road project in question.
Basins are drawn based on the current Water protocol provisions, and generally, as adjusted and determined in connection with the activity: Stormwater basins. Dimensioning and design. Other drainage elements (e.g. pumping stations, temporary basins, special structures, etc.) outside the road reserve and drawn on 1:1,000 plans.
Around drainage elements outside the road reserve, property rights shall be stated: work area, pipe easement and maintenance, area acquisition, access conditions to basins, right of way, etc.
Plans with drainage elements and property rights are to be prepared.
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Activity Description
Dimensioning and design of drainage system
Dimensioning assumptions (drainage principles, permitted transgression frequencies, design rain intensities, etc.) are reviewed and determined.
Assumptions in respect of general catchment areas and water sheds are assessed by comparing the current road project with the Water protocol and discharge permissions as well as any bridge project and eco passage project. Based on this assessment, catchment areas and water sheds will be determined finally.
Typical spacings for wells, inlets and outlets, etc. in relation to the centre line, gutter collection, etc. are specified on normal cross sections for motorways, ramps and intersecting roads and paths.
Relevant completed road and raw soil lines are prepared for plotting the drainage project into e.g. VejVand or an equivalent computer program on the basis of desired spaces for drainage elements.
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Activity Description
Manhole and piping system is designed on the basis of the selected drainage principle (module), excavation↔filling and the given longitudinal
slope. Pipe dimensions are designed for the maximum pipe running full on the basis of catchment area and design rain intensity.
The drainage system shall be plotted in e.g. VejVand or an equivalent computer program and be quality assured. Setting out lists/tables for nodes and pipes shall be prepared and quality assured.
For the normal documentation level, a damming calculation is carried out using MOUSE/MIKE URBAN or equivalent. The damming calculation is reviewed and the drainage system is to be adjusted if the damming criteria are not observed.
Tender documents. Text and drawings (digital)
Text: Text contributions are prepared on the basis of paradigms: SWS-P, QCR-P, TCB-P and BOQ-P (Road standard, Tender specifications – Drainage). If necessary, previous tender documents from a comparable tender can be reviewed, and relevant text sections can be copied and adjusted.
From programmes with databases such as VejVand or equivalent, similar extractions are made for BOQ. Estimated and fictitious quantities are determined and handed over to the project manager for the Bill Of Quantities.
Drawings: Drainage plans shall be corrected so that they can be included in the drawing annex in "White book".
The gross list of drainage model drawings shall be reviewed and relevant drawings are selected for the "White Book".
Any drawings for special structures etc. shall be prepared and adjusted for use in the "White Book".
Adapted drainage plans and tables are compiled into drainage tables for drainage in the "White Book"
Transfer to supervision and project follow-up
The project management will agree on a time schedule for transfer and will ensure that transfer takes place. Project documents are transferred to the supervision. An account shall be given of any special conditions and risks related to drainage.
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4. DOCUMENT MANAGEMENT APPROVED UNIT/NETWORK THEME SCHEDULED REVISION ACCESS
MIAN December 2013
Design of Drainage
Drainage
December 2015 Internal External
