CEE 432 / CEE 472 Construction Planning & Scheduling Group Classwork/Homework Assignment Sept. 27, 2022 A new concrete roadway is to be constructed along the longitudinal section (attached) from Station 00+00 to Station 116+00. The concrete will be placed over an aggregate subbase once the earthwork is completed. The earthwork required is amazingly balanced on each side of the midpoint of the road (Station 58+00). This balance means that the volume of excavation in the cut areas will be sufficient to embank into the fill area within each respective area A and B so that dirt does not have to be moved between areas A and B. Conditions: 1. The balanced earthwork (cuts and fills) in Area A, between station 0+00 and station 58+00, can be done at the same time as the balanced earthwork in Area B, between station 58+00 and station 116+00, because you will have two separate independent earthwork crews (men & equipment) available to you. However, you have only one crew to do your clearing and grubbing. 2. One crew will build the double-box culvert drainage structure in place. Another separate crew will build the two smaller drainage culverts in place one after the other. Concrete for these culverts will be purchased from and delivered by an independent supplier. These drainage culverts are necessary since we will be filling up the low areas (gully) to construct the new roadway and therefore must maintain existing flow through (under) our new fills. 3. One concrete slip-form paving machine will do all the concrete paving work in place. Paving mesh and paving materials must be delivered and stockpiled at the site in time to begin the paving work. Paving work must be continuous with no stand-by time between the two sides A and B. All the shoulder work will then follow using one crew after the concrete pavement is sufficiently cured (10 days). 4. Seeding the embankments (fill slopes) with grass must be started after shoulder work is completed with minimal delay. (Assume 1/2 of the duration is for Area A, and 1/2 for Area BA Deliver rebar for double-box culvert 10 B Deliver rebar for small culverts 10 C Order and deliver paving mesh 10 D Clear and grub, station 00+00 to 58+00 10 E Construct small culvert, station 85+00 14 F Partial Cut & Fill, station 58+00 to 116+00 after culvert 85 16 complete G Cure small culvert, at station 85+00 10 H Balance of Cut & Fill, station 58+00 to 116+00 after culvert 96 complete 5 I Place subbase aggregate layer, station 58+00 to 116+00 4 J Pave station 58+00 to 116+00 5 K Pave station 00+00 to 58+00 5 L Shoulders, station 00+00 to 58+00 2 M Seeding embankments with grass 4 N Begin/Start 0 P Mobilization 3 Q Set up paving batch plant 8 R Construct/Cure double-box culvert at station 38+00 40 S Clear and grub, station 58+00 to 116+00 8 T Cut & Fill, station 00+00 to 58+00 27 U Construct small culvert, station 96+00 14 V Cure small culvert, station 96+00 10 W Place subbase aggregate layer, station 00+00 to 58+00 4 X Order and stockpile paving materials 7 Y Cure station 58+00 to 116+00 10 Z Cure station 00+00 to 58+00 10 AA Shoulders, station 58+00 to 116+00 2 BB Demobilize/Open Road 3 CC End/Finish 0