Maricopa Community Colleges  ABC153   19962-20026 
Official Course Description: MCCCD Approval: 11/28/95
ABC153 19962-20026 LEC 1 Credit(s) 1 Period(s)
Excavations and Underground Pipe
Excavation for underground piping systems including properties of specific soils, identification of specific soil types, hazards, abatement of hazards, OSHA (Occupational Safety & Health Administration) regulations, shoring, support systems and bedding material. Underground piping systems including types of piping materials and their applications, sizes of pipe, types of pipe fittings, joining methods, storage and handling of pipe. Prerequisites: (Indentured status with the Arizona Builders Alliance) or permission of the apprenticeship coordinator.
Go to Competencies    Go to Outline
 
MCCCD Official Course Competencies:
 
ABC153   19962-20026 Excavations and Underground Pipe
1. List and define trade terms relating to excavations and describe safety hazards associated with excavations. (I)
2. Describe soil properties according to grain size, soil gradation and grain shape. (II)
3. Identify soil types including sand, clay, silt and gravel. (III)
4. Describe OSHA safety regulations regarding trenching, including specific hazards, personal safety equipment, and sloping requirements for specific soil types. (IV, V)
5. Identify specific shoring and support systems for trenches and excavations and describe their proper use. (VI)
6. Explain the use of bedding materials and apply to specific trenching situations. (VII)
7. List and define trade terms related to underground pipe. (VIII)
8. Identify specific types and sizes of underground piping materials and their uses. (IX, X)
9. Identify specific underground pipe fittings and describe their use. (XI)
10. Describe joining methods for underground pipe. (XII)
11. Describe proper storage and handling procedures for underground pipe. (XIII)
Go to Description    Go to top of Competencies
 
MCCCD Official Course Outline:
 
ABC153   19962-20026 Excavations and Underground Pipe
    I. Excavations
        A. Trade terms
          1. Angle of repose
          2. Competent person
          3. Egress
          4. Sheet piling
          5. Shoring
          6. Silt
          7. Sloping
          8. Support system
          9. Trench box
          10. Other
        B. Safety concerns
      II. Properties of soil
          A. Grain size
          B. Soil gradation
          C. Grain shape ABC153Effective Term:
        III. Types of soils
            A. Sand
            B. Silt
            C. Clay
            D. Gravel
          IV. Excavation safety
              A. Design hazards
              B. Personal safety
            V. Sloping requirements for different soil types
                A. Stable rock
                B. Type "A" soil
                C. Type "B" soil
                D. Type "C" soil
              VI. Excavation support systems
                  A. Shoring
                  B. Sheet piling
                  C. Trench boxes
                    1. Trench box configurations
                    2. Moving trench boxes
                    3. Trench box safety
                VII. Bedding material
                    A. Laying conditions
                    B. Maximum depth of cover
                  VIII. Trade terms
                      A. Bituminous coating
                      B. Branch
                      C. Clean-out
                      D. Elbow
                      E. Gasket
                      F. Invert elevation
                      G. Lateral
                      H. Mastic
                      I. Neoprene
                      J. Oakum
                      K. Thermoplastic
                      L. Other
                    IX. Types of underground piping materials
                        A. Cast iron
                        B. Ductile iron
                        C. Iron alloy
                        D. Carbon steel
                        E. Concrete
                          1. Circular
                          2. Horizontal elliptical
                          3. Vertical elliptical
                          4. Arch ABC153Effective Term:
                        F. Vitrified clay
                        G. Fiberglass
                        H. Thermoplastic
                          1. PVC
                          2. CPVC
                          3. HDPE
                          4. ABS
                      X. Underground Pipe Sizes
                          A. Single and double-hub cast iron
                          B. Hubless cast iron
                          C. Ductile iron
                          D. Carbon steel
                          E. Concrete
                          F. Vitrified clay
                        XI. Underground Pipe Fittings
                            A. Cast iron soil pipe
                            B. Ductile iron
                            C. Vitrified clay
                            D. Thermoplastic
                          XII. Joining Methods of Underground Pipe
                              A. Bell-and-spigot Pipe
                                1. lead and oakum joints
                                2. compression joints
                              B. Hubless cast iron pipe
                              C. Ductile iron pipe
                                1. Compression joints
                                2. Mechanical joints
                                3. Flanged joints
                              D. Carbon steel pipe
                                1. Butt welding
                                2. Socket welding
                                3. Flanges
                                4. Threaded joints
                                5. Dresser couplings
                              E. Concrete pipe
                                1. Rubber gaskets
                                2. Mastic sealants
                                3. Cement or mortar sealants
                                4. External bands
                              F. Vitrified clay pipe
                              G. Fiberglass pipe
                                1. Butt and strap method
                                2. Bell and spigot method
                                3. Redi-thread method
                                4. Threaded and bonded (TAP) joints ABC153Effective Term:
                              H. Thermoplastic pipe
                                1. Glued welds
                                2. Fillet welded joints
                                3. Threaded joints
                                4. No hub joints
                            XIII. Storing and handling underground pipe
                                A. Unloading and transport
                                B. Handling concrete pipe
                                C. Commercial lifting devices
                                D. Job-fabricated lifting devices
                                E. Handling fiberglass and plastic pipe
                                F. Inspecting and stacking pipe
                            Go to Description    Go to top of Competencies    Go to top of Outline