SEISMIC DETECTORS FOR CONTINUOUS BED-LOAD MONITORING IN A GRAVEL STREAM

被引：44

作者：

GOVI, M

MARAGA, F

MOIA, F

机构：

[1] National Research Council (CNR) Research Institute for Hydrogeological Protection in the Po Basin, IRPI, Torino

[2] ISMES SpA, Geophysical Department, Bergamo

来源：

HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES | 1993年 / 38卷 / 02期

关键词：

D O I：

10.1080/02626669309492650

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

A field experiment is described for continuous recording of bed load transport rates in a coarse-grained alluvial channel, using instruments typically available to seismologists. The experiment was carried out in 1990 in the Italian Alps, in a small basin equipped since 1982 with instruments conventionally used in hydrological surveys and bed load transport measurements. In July 1990, six seismometers were placed along the alluvial channel for up to about 150 m upstream of the flow gauging station. Continuous microseismic recordings of seven flood flows were analysed, five being associated with coarse sediment delivery. The mechanism of bed load transport was inferred from two or three microseismic impulse peaks occurring before and after the discharge peak shown in the hydrograph. Those microseismic peaks are thought to reflect the pulsed nature of bed load transport while the periods elapsing between them are interpreted as indicating the duration of the transport process and appeared independent of peak discharges.

引用

页码：123 / 132

页数：10

共 7 条

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