| タイトル | Evaluation of submarine strain-gage systems for monitoring coastal sediment migration |
| 本文（外部サイト） | http://hdl.handle.net/2060/19740005968 |
| 著者（英） | Mcgrath, D. G.; Shideler, G. L. |
| 著者所属（英） | Old Dominion Univ. |
| 発行日 | 1973-08-01 |
| 言語 | eng |
| 内容記述 | Single and multiple strain-gage systems were respectively evaluated as in situ point and areal sensors for monitoring sand-height variations in coastal environments. Static loading tests indicate that gage response pressure is linear for sand heights up to 24 inches. Response pressures are a function of both sand height and aggregate density, with density being influenced by both sediment texture and degree of compaction. Poorer sediment sorting and greater compaction result in higher response pressures. Field tests in a beach foreshore environment indicate that the gage systems are effective qualitative instruments for monitoring long-period migration trends of beach sediments; whereas, short-period responses are not sufficiently reliable. The durability and compactness of the gage systems must be substantially increased for effective field operations. It is recommended that the systems' qualitative potentials be further developed, whereas their development as quantitative instruments be terminated. Further development should emphasize the construction of remote recording systems designed for semipermanent installation. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 74N14081
NASA-CR-132366
TR-11 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/196325 |
