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  1. 紀要論文
  2. 琉球大学農家政工学部学術報告
  3. 11号
  1. 部局別インデックス
  2. 工学部

沖縄本島に産する海砂利の分布および物理的性質

http://hdl.handle.net/20.500.12000/19468
http://hdl.handle.net/20.500.12000/19468
566001fc-b040-4256-81fc-2bb52346099c
名前 / ファイル ライセンス アクション
No11p223.pdf No11p223.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2011-05-02
タイトル
タイトル 沖縄本島に産する海砂利の分布および物理的性質
言語 ja
作成者 上間, 清

× 上間, 清

ja 上間, 清

Uema, Kiyoshi

× Uema, Kiyoshi

en Uema, Kiyoshi

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 At present in Okinawa the most commonly used coarse aggregate is one processed from lime stone that is widely distributed on the island. The other thinkable sources of aggaegates are river gravels and beach aggregates. However, the amount of production from these sources is limited, especially river gravels being practically negligible. Beach aggregates, although limited in the production, have relatively wider geological distribution on the beaches and have been used in various fields including engineering ones. However, it is doubtful that beach aggregates have been used properly, with the exception of a few cases, considering the engineering properties of them. To know the distribution and engineering properties is necessary and basic when we are to use the beach aggregates effectively and economicaly, and also to establish the limitation of their use as engineering materials. Since a study has been made on crushed stone aggregates and reported partly elesewhere in this bulletin, this paper deals with the distribution and basic engineering properties of beach aggregates. The basic properties tested and the designations of the test methods by JIS (Japan Industrial Standards) are (1) sieve analysis (JIS A 1102), (2) unit weight (JIS A 1104), (3) specific gravity and absorption (JIS A 1110), (4) abrasion by use of Los Angels Machine (JIS A 1121), and (5) compressive strength of molded cone cylinder (JIS A 1108) (partly). Of the distribution the survey was conducted by reconnaisance in the middle of September in 1963. The survey covered most of the coastline of the island, exept for a few miles due to difficulty in access and some other reasons. During the survey attention was directed to (1) the form of distribution, (2) the quantitative distribution of both beach aggregates and sands, (3) the degree of accessibility to the beach, and (4) the collection of representative samples for later physical tests. The geological distribution and the test results are shown in Fig. 1 and Table 1, and Table 2, respectively. Discussion is made for the test results comparing them with the values normally obtained for other aggregates and also checked is the comformity with the specifications of JSCE (Japan Society of Civil Engineers). In the final section conclusions are drawn concerning the distribution, engineering properties, and limitation of the use of the beach aggregates.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農家政工学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/19468
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0485-7828
収録物識別子タイプ NCID
収録物識別子 AN00250570
収録物名
言語 ja
収録物名 琉球大学農家政工学部学術報告
書誌情報
号 11, p. 223-233
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