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埋立地における地盤沈下を考慮した諸施設の耐震化システム

考虑填海地面沉降的各类设施抗震系统

基本信息

批准号：
62601030
负责人：
安田進
金额：
$ 1.6万
依托单位：
Kyushu Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
1987
资助国家：
日本
起止时间：
1987 至无数据
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-62601030/
关键词：
埋立地地震地震沈下耐震設計液状化

项目摘要

わが国の大都市では近年海岸に広大な埋立地が造成されてきている. 一般に埋立地は地盤条件が非常に悪く, 地震に襲われた場合, 諸施設が甚大な被害を受ける危険性を有していると考えられているが, その実体は明らかにされてきていない, そこでこの事を明らかにするため, 本年度いくつかの視点から研究を行った. 成果を要約すると次のようになる.(1)震害報告書や筆者達の経験をもとに, 過去の地震による埋立地の被害状況を調べた. また, 研究期間中に発生した千葉県東方沖地震に対しても東京湾岸の埋立地での被害状況の現地踏査を行った. これらの結果, 埋立地では特に液状化による被害が目立っていることが明らかにされた.(2)全国の埋立地に関する資料を, 文献や統計資料等から収集した. その結果, 各埋立地における土地利用状況や地盤条件, 地盤沈下状況の問題点が明らかにされた.(3)全国のうち, 代表的な埋立地として東京湾および伊勢湾の埋立地をとりあげ, 現地踏査も含む各種の調査を行った. その結果, 地盤沈下による諸施設の変状, 地層構成などが明らかにされた.(4)(3)でとりあげた埋立地に対し, 想定しておくべき地震動を地震活動調査や地域防災計画資料等をもとに調べた.(5)地盤沈下により構造物が過大な応力を受けていたところに, 地震動が加わり被害が生じた例について, 情報の収集を行った. その結果, 仙台市の水道管などでそのような被害を受けていたことが明らかにされた.(6)埋立地の液状化特性に関する研究の一つとして, まさ土を埋立材として用いた場合の施工過程中の液状化強度変化を, 室内液状化実験を行って調べた.

In recent years, the coastal areas and large-scale burial sites in the national metropolis have caused a lot of trouble. In general, the conditions of the buried ground are very difficult, the earthquake conditions are very close, the construction is very large, the victims are at risk, and the body is clear that there is a lot of trouble, and that there is a lot of trouble in this year's study. The results are about the number of times. (1) the number of people who reported the earthquake damage reached the level of the earthquake damage report, and the situation of the earthquake disaster site was seriously affected in the past. During the study period, there was an earthquake disaster, an earthquake disaster, a buried site on the coast of Beijing Bay, and the situation of being killed. According to the results of the experiments, the buried sites were liquified and the victims were killed. (2) the collection of data, literature statistics and other information on buried sites throughout the country. According to the results of the survey, the land use conditions and subsidence conditions of each buried site have been discussed. (3) the representative of the national housing estate, the representative of the burial site, the Beijing Bay site, the Yili Bay site, the burial site, the Bay, the Gulf, the Gulf, and the Gulf of Iwo. According to the results of the experiment, the ground is in a state of construction, and the ground is formed into a structure. (4) (3) the ground floor is buried in the ground, and you want to determine the earthquake activity, earthquake activity, regional prevention plan, data, and so on. (5) the building of the sunken earth has been subjected to heavy load due to excessive strength. There is an example of an earthquake, a victim, a victim or a victim. The results showed that in Sendai City, the waterway pipe was damaged and the victims were killed. (6) the study on the characteristics of liquification of buried site was completed. The strength of liquids was strengthened in the process of construction, and indoor liquification was used in the process of construction.