Foundation Investigations, NASA Mississippi Test Facility. Report 4. Dynamic Behavior or Piling During Initial Test Firings on the S-1C AND S-2 Test Complexes

摘要

The Mississippi Test Facility is the site of test stands built to test the first and second stages of the Saturn 5 space vehicle. The stands were instrumented to obtain foundation base pressures, lateral wall pressures, and pile loads during and after test firings of the Saturn V engines. The S-IC stage of the vehicle was statically tested at 7,500,000-lb thrust in a dual-position stand on a reinforced concrete foundation supported by vertical and battered H piles. Soil stress meters were installed beneath the foundation and on the walls to measure base and lateral wall pressures. Pore pressure cells were installed to measure hydrostatic pressure. Strain gages measured axial and shear loads. The S-2 stage of the vehicle was statically tested at 1,000,000-lb thrust in a single-position stand on a split-level reinforced concrete foundation supported by vertical and battered H piles; soil stress meters and pore pressure cells were installed beneath the foundation and on the walls, and strain gages measured axial and shear pile loads. (Author)