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  • 辻村 政志
    地理科学
    1982年 37 巻 1 号 42-56
    発行日: 1982年
    公開日: 2017/04/20
    ジャーナル フリー
    The appearance of the Shinkansen Line has caused the most typical traffic reformation in these days in our country. And it has not only given the great change to the way of life of the inhabitants along the Line, but also has exerted an inestimable influence on the society and the economics of Japan. The Sanyo Shinkansen Line was opened in March, 1975. The author has made investigations on its influence, especially on the spheres of the four stations in Yamaguchi Prefecture. As a result he has got the following findings about the change of the traffic system, the advancement of the sphere of station's influence and the transformation of the vicinities of the stations. (1) By the opening of the Sanyo Shinkansen Line Yamaguchi Prefecture has been involved in the regional traffic system. And a new traffic system has been making progress, centering around the cities which have the stations of the Line. At the same time the Sanyo Main Line, which is in the competitive position, has declined in the value of the trunk line. And the traffic functions of the towns and cities except the ones which have the Shinkansen Stations have been damaged in communication. The establishment of New Shimonoseki and New lwakuni Stations, which has been founded apart from the main stations of the old Sanyo Main Line, has made the number of the passengers of the old stations extremely decrease. (2) The connection between the Shinkansen Line and the bus services is weak. In the course of the reduction and regulation of the bus services the number of the new bus lines except the connection lines between Sanyo and Sanin and the lines directly connecting the Shinkansen Stations with the Sanyo Main Line Stations has hardly increased. The long distance bus services, which are also in a rival position, has been obliged to discontinue. (3) Since the opening of the Shinkansen Line there has been much difference between the use of the up trains and that of the down ones in the spheres of the stations. The former is much more dominant. The spheres bear strong relations to the daily traffic systems. Among the spheres that of Ogori Station has built up the biggest, reaching the western part of Shimane Prefecture. On the contrary the eastern part of Yamaguchi Prefecture has been involved into the sphere of Hiroshima Station, which has invaded the sphere of Shiniwakuni. (4) The traffic resorts to the Shinkansen Stations are largely that of park and ride by cars. The use rate of it depends upon the conditions of improved roads and traffic facilities. It can be said that the taxis are intensively used at the time zone when the mass transportations can not be available. (5) The number of passengers by the Shinkansen Line is in proportion to that of the population of the spheres of the stations. The slight relative difference of the use rates is due to regional conditions of the spheres of the stations. The highest rate of use is found at Ogori Station the sphere of which has sightseeing places and the seat of the prefectural office, attracting lots of the people who use the Line.
  • 中川 明
    交通権
    2019年 2019 巻 36 号 104-127
    発行日: 2019年
    公開日: 2021/04/11
    ジャーナル フリー
  • 沢木 来
    日本鉱業会誌
    1986年 102 巻 1178 号 230-233
    発行日: 1986/04/25
    公開日: 2011/07/13
    ジャーナル フリー
  • 池田 和彦, 大島 洋志
    応用地質
    1971年 12 巻 1 号 51-63
    発行日: 1971/03/01
    公開日: 2010/02/23
    ジャーナル フリー
    The route for SANYO SHIN KANSEN (New Sanyo Line) between Okayama and Hakata was selected as to connect every significant cities along the line with straight lines and as aconsequence it includes many tunnels amounting to 218km of the total distance of 400km. According an outline of the project for construction is described laying emphasis on geological problems relating to tunnel construction.
  • 睡眠口腔医学
    2017年 4 巻 1 号 1-103
    発行日: 2017年
    公開日: 2019/12/04
    ジャーナル フリー
  • 島弧地殻における花崗岩質マグマの生成と流体の挙動
    寺林 優, 山本 啓司, 亀井 淳志
    地質学雑誌
    2017年 123 巻 8 号 599-612
    発行日: 2017/08/15
    公開日: 2017/09/05
    ジャーナル フリー

    領家帯は,白亜紀の花崗岩類とそれらに密接な関係をもつ変成岩類からなる地体構造単位である.これまでに,構造地質学,変成岩および深成岩に関する岩石学,地球化学,年代学などからの研究が数多くなされてきた.領家帯は,下部グラニュライト相に達するような広域変成作用を被っていることから,かつての島弧の地殻断面が隆起・露出していると考えられている.島弧地殻内部で発生する地震の震源は,地下約20kmよりも浅い領域に集中し,それよりも深い領域で稀なのは,地殻の深部では岩石が流動的に変形するために地震を引き起こすような脆性破壊が起きにくいことが理由とされている.島弧地殻を構成している珪長質岩石の変形機構は,石英と長石のレオロジーから,300°Cから450°Cの間の温度条件で脆性から塑性に遷移すると推定され,島弧の地温勾配を25°C/km程度と仮定すると,脆性-塑性遷移領域は12kmから18kmの深さの範囲にある.本巡検では,島弧の深部地殻での花崗岩質マグマの挙動,中部地殻でのコンピテントレイヤーの形成とその破壊における流体の挙動という視点から岩国-柳井地域の領家帯を案内する.

  • 金属選鉱工場
    日本鉱業会誌
    1982年 98 巻 1134 号 759-805
    発行日: 1982/08/25
    公開日: 2011/07/13
    ジャーナル フリー
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