Slip-Form Lining of the San Luis Canal
Max R. Johnson
Appears on pages(s):
aggregate grading, canal, construction,k contraction joint, lining machine, mix composition, San Luis Canal, slip form paving, trimming machine
Design considerations and construction progress for the San Luis Canal in central California are described. The canal s a principal feature of a large water project being built as a joint effort of the U. S. Bureau of Reclamation and the California Department of Water Resources. It will be over 100 miles long and have an initial capacity of about 13,100 cu per sec when completed in 1967. An unreinforced concrete lining, 4-l/2 in. thick, was selected because of its smoothness and because it allowed a smaller cross section. Experience and economic studies showed that an appreciable saving in capital outlay and maintenance costs could be realized with such a lining. Details of the slip-forming operation, special equipment used, and special joints developed to reduce leakage are described. Concrete mixes and aggregate gradings especially developed for slip-form paving are described.