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Project Delivery Methods - ✔✔- Design-Bid-Build
- Design-Build
- CM
- Multiple Prime
Contract Types - ✔✔- lump sum
- unit price
- cost plus
Liquidated damages - ✔✔Contractually stipulated amount to be paid for particular
breach of contract
Bid bond - ✔✔guarantee bidder will enter into contract with client if lowest bidder
Performance bond - ✔✔guarantees contractor will perform specified work
Payment bond - ✔✔guarantees contractor will pay for materials/labor used
Surety bond - ✔✔Assumes liability for debt, default, failure in duty of another party
Mechanic's Lien - ✔✔legal right to lay claim to project property until paid
Cohesionless soils - ✔✔sands/gravels
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, Cohesive soils - ✔✔clays/silts
(internal friction angle = 0)
Normally consolidated - ✔✔present effective overburden pressure is maximum
Differential settlements - ✔✔most damaging, not uniform across supported area
Geotech testing - ✔✔- Atterberg Limits (Shrinkage Limit Test)
- Standard Proctor Test
- Consolidation Test
- Direct Shear Test
- Triaxial Test
- Sieve Test
Erosion control - ✔✔- cover slope in vegetation/stone/netting
- pave slope
Active vs. Passive - ✔✔active = wall moves away from soil
passive = wall moves into soil
Improve soil stability - ✔✔- cement, lime, bitumen
- chemicals
- grouting
- geotextiles/fabrics
Steel: increasing carbon content - ✔✔- increases yield stress
- decreases ductility
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