応用地質
Online ISSN : 1884-0973
Print ISSN : 0286-7737
ISSN-L : 0286-7737
36 巻, 1 号
選択された号の論文の11件中1~11を表示しています
  • 岐阜県東濃地域におけるケーススタディ
    尾方 伸久, 若松 尚則, 梅田 浩司, 柳澤 孝一
    1995 年 36 巻 1 号 p. 1-13
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
    This study is designed to define the correlation between surface geology and discharge and chemical composition of the stream water in order to estimate the groundwater flow system.
    In the 29 catchments in the Tono area which consist of basement granite, and overlaying Mizunami Group (sandstone, mudstone, etc.) and Seto Group (unconsolidated sediments), flow rates and chemical composition of the stream water were analysed in a dry season.
    These values were compared with the surface geological condition of each catchment by multivariate analyses.
    Results are summarized as follows;
    (1) Height of runoff is smaller in the catchments where the Mizunami Group is dominantly exposed, and increases with average thickness of the Seto Group.
    These facts suggest that storage capacity of the Seto Group is greater than that of the Mizunami Group.
    (2) A discriminant analysis revealed that classification of stream water based on surface geology corresponds well with the classification based on chemical composition. This indicates the chemical composition of the stream water is relevant to the surface geology of the catchment.
    (3) The results of a principal component analysis for chemical composition of the stream water indicates that the residence time of groundwater in the Seto Group is smaller compared to that in the Mizunami Group.
  • 菊地 宏吉, 水戸 義忠, 宇津木 慎司
    1995 年 36 巻 1 号 p. 14-23
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
    A test system using Rock Test Hammer is often used to evaluate rock mass properties, simply.Strike response value is measured by using this equipment, and the modulus of elasticity and uni-axial strength are expected. In order to apply this principle to the borehole logging, a new tool “Borehole Hammer” was developed. Laboratry testing on rock specimen using this tool has already been carried out and we have successful results.
    In this study we conducted the in-situ tests using “Borehole Hammer” and borehole expansion tests in order to grasp the applicability of “Borehole Hammer” to the estimation of rock mass deformability. As the results, the relationship between strike response value obtained by “Borehole Hammer” and elasticity tends to linear and the applicability of “Borehole Hammer” to the in-situ rock masses is clarified.
  • 鈴鹿 和央, 渡辺 文雄, 高橋 悟, 白井 清恒
    1995 年 36 巻 1 号 p. 24-32
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
    The rising temperature of the soil by compaction is produced by friction or colhsion between the soil particles.
    The relation between the number of compaction and the rising temperature is a continuous curve that has steep gradient at the early stage alld change gradually straight line.The initial part is temperature based on the movement of soil particles by compaction.The other side, straight part of this continuous curve inustrates that the temperature is risen by the crush of soil particles by collision.
    And so, we analyzed on the gradient of straight part with minimum square method. In this paper, this gradient are defined as mit rising temperature.
    We describe the properties of the unit rising temperature obtained with compaction used 9 species of decomposed granitic soil and 4 comparative experiment soil.
    The results of these experimental studies are as follows:
    1) the value of the unit rising temperature has relationship with properties of soil particles,
    2) unit rising temperature are effectiveness in judgment of weathered degree of the decomposed granitic soil.
  • 原口 強, 岡村 眞, 松岡 裕美, 松岡 数充, 近藤 清二
    1995 年 36 巻 1 号 p. 33-38
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
  • 櫻井 孝
    1995 年 36 巻 1 号 p. 39-40
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
  • 林 愛明, 井宮 裕, 宇田 進一, 三沢 隆治
    1995 年 36 巻 1 号 p. 41-46
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
  • 釜井 俊孝, 鈴木 清史, 磯部 一洋
    1995 年 36 巻 1 号 p. 47-50
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
  • 原口 強, 岡村 眞, 露口 耕治
    1995 年 36 巻 1 号 p. 51-61
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
    The enormous earthquake on 17th January caused the calamity mainly in Kobe district and northern part of Awajisima-Island. More than five thousand people was killed and many houses were destroyed. Big fault (Nojima-earthquake-fault) caused to this earthquake. This fault has 14 kilometers in length from Ezaki lighthouse to Ikunami on the island and has right-lateral horizontal displacement. The maximum horizontal and vertical displacement are 1.7 m and 1.2 m respectively at Nojima-Hirabayashi in Awajishima-Island. This is the first report on the distribution and movement of the fault and disasters of houses, embankments and a transmission tower based on the site investigation and aerophotograph interpretation.
  • 石川 浩次, 溝口 昭二, 大鹿 明文
    1995 年 36 巻 1 号 p. 62-80
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
    An earthquake of magnitude 7.2 occured north of Awaji Island on January 17th, 1995, at 5: 46 a.m.
    We started, immediately after the earthquake, an investigation of its damage, covering the remains of wooden houses and reinforced concrete buildings in the Kobe area.
    The investigation result indicate that the earthquake damage was generally distributed in a belt or island form, depending on the grade of seismic intensity, 1.5-2.0kilometers wide in the east-to-west direction from the JR Kobe line in the north to the Kobe highway line in the south.
    The relationships between bulding damage and earth movement were found to have been very complicated by the influence of geological structure, topography, distance from seismic center, classification of sedimentary deposit, active faults, etc, upon one another.
  • 遠座 昭, 飯沼 清, 吉田 智治
    1995 年 36 巻 1 号 p. 81-87
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
    We have investigated the distribution and properties of the ground deformations, associated with topography and ground conditions, which were caused by the Southern Hyogo Prefecture Earthquake, in the southeastern area of the Rokko Mountains.
    The landform of the study area is characterized by hill formed by the Higher terrace plane (Takakura Plane) and Middle terrace plane (Uegahara Plane), and the Koyo Fault, which is considered to be an active fault, striking in the trend of a NE to SW direction in the northwestern area.
    There has been rapid improvement in recent years to irrigation ponds and valleys through land reclamation and subsequent regional development in this area.
    The ground deformations caused by the earthquake can be classified into three large groups as follows:
    1. Liquefaction and accompanied ground deformation caused by seismic vibration in reclaimed land on irrigation ponds and valleys.
    2. Slope failure in the fills in residential district.
    3. Landslide and land subsidence caused by ground fluidization in the fills and Alluvium.
    These deformations appear to be concentrated along the Koyo Fault and the interpretable lineament which runs in the trend of a ENE to WSW direction in the southeastern area of the Koyo Fault.
    Furthermore, most deformations did not occur in the natural slopes but rather in those sections, which were formed artificially, such as reclaimed lands and fills.
    The results of this study shall be taken into consideration when examining the disaster prevention in future earthquake in hill areas.
  • 藤田 元夫
    1995 年 36 巻 1 号 p. 88-91
    発行日: 1995/04/10
    公開日: 2010/06/04
    ジャーナル フリー
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