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Volume 10 (1969)
- Issue 4 Pages 129-
- Issue 3 Pages 81-
- Issue 2 Pages 43-
- Issue 1 Pages 1-
Volume 10, Issue 3
Displaying 1-4 of 4 articles from this issue
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Rokuro Morikawa1969 Volume 10 Issue 3 Pages 81-103
Published: September 01, 1969
Released on J-STAGE: February 23, 2010
JOURNAL FREE ACCESSSubsidence of the ground is conspicuous in th lowlands of Kawaguchi and in southern part of Saitama Prefecture, causing various kinds of damages. In general, the ground subsidence occur where the humus soil is thick, such as a back marsh. And, the cumulative amount of subsidence is larger when the alluvial deposits are thicker. It is reported that the diluvial deposits are also subsiding lately, although it is questionable.
The ground subsidence is chiefly ascribed to the excessive utilization of underground water. Heavy traffic of these days may also account for the subsidence, but it is merely a superficial phenomenon. In order to prevent the ground subsidence, pumping of underground water must be carried out on a well-laid plan.View full abstractDownload PDF (4022K) -
Yoshimasa Isozaki, Yasushi Nakayama1969 Volume 10 Issue 3 Pages 104-110
Published: September 01, 1969
Released on J-STAGE: February 23, 2010
JOURNAL FREE ACCESSAwara Terrace consists of diluvial sand and conglomerate, which bear unconfined ground-water. The basal bed is Miocene sandstone and early Pliocene pyroclastic substances.
Several deep wells were developed for the sake of irrigation, and the resources of city water have been here looked for. A planning of such deep wells may stand in the way of irrigation owing to ground-water. An agricultural discharge of ground-water brings a recharge with time lag, while the others take water out of strata solely. This paper deals with a difference of theirs to that effect, striking a hydrologic balance by means of an intake rate, a fall of the static level, and all the withdrawal.View full abstractDownload PDF (1179K) -
Yoshiro Hayashida1969 Volume 10 Issue 3 Pages 111-117
Published: September 01, 1969
Released on J-STAGE: February 23, 2010
JOURNAL FREE ACCESS -
Torahiko Moritani1969 Volume 10 Issue 3 Pages 118-121
Published: September 01, 1969
Released on J-STAGE: February 23, 2010
JOURNAL FREE ACCESSDownload PDF (625K)
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