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NASA-LLIS-0932
Lessons Learned – Configuration Control for Underground Utilities
Year: 2001
Abstract: Description of Driving Event:
On January 7, 2001, a large washout was discovered in the vicinity of Facility K7-1205F at the Kennedy Space Center Press Site. Water was flowing from the open end of a failed 4" potable water main. The washout undermined portions of the concrete foundation and driveway apron for a garage canopy at K7-1205F and damaged the sewer and electric services to the facility.
The dominant root cause of this mishap was the removal of a concrete thrust block from the end of the 4" water main during installation of a power conduit by a KSC support contractor. The thrust block was mistaken for waste concrete material. With the removal of the thrust block, used as the primary constraint for the direct buried slip joint piping system, there was insufficient contact area with the soil to prevent the water main from separating at the joints.
On January 7, 2001, a large washout was discovered in the vicinity of Facility K7-1205F at the Kennedy Space Center Press Site. Water was flowing from the open end of a failed 4" potable water main. The washout undermined portions of the concrete foundation and driveway apron for a garage canopy at K7-1205F and damaged the sewer and electric services to the facility.
The dominant root cause of this mishap was the removal of a concrete thrust block from the end of the 4" water main during installation of a power conduit by a KSC support contractor. The thrust block was mistaken for waste concrete material. With the removal of the thrust block, used as the primary constraint for the direct buried slip joint piping system, there was insufficient contact area with the soil to prevent the water main from separating at the joints.
Subject: Configuration Management
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:59:05Z | |
| date available | 2017-09-04T16:59:05Z | |
| date copyright | 03/21/2001 | |
| date issued | 2001 | |
| identifier other | XKUEQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/122455 | |
| description abstract | Description of Driving Event: On January 7, 2001, a large washout was discovered in the vicinity of Facility K7-1205F at the Kennedy Space Center Press Site. Water was flowing from the open end of a failed 4" potable water main. The washout undermined portions of the concrete foundation and driveway apron for a garage canopy at K7-1205F and damaged the sewer and electric services to the facility. The dominant root cause of this mishap was the removal of a concrete thrust block from the end of the 4" water main during installation of a power conduit by a KSC support contractor. The thrust block was mistaken for waste concrete material. With the removal of the thrust block, used as the primary constraint for the direct buried slip joint piping system, there was insufficient contact area with the soil to prevent the water main from separating at the joints. | |
| language | English | |
| title | NASA-LLIS-0932 | num |
| title | Lessons Learned – Configuration Control for Underground Utilities | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;2001 | |
| contenttype | fulltext | |
| subject keywords | Configuration Management | |
| subject keywords | Facilities |