File:NLC416-08jh013090-31515 導淮入江水道三河活動壩模型試驗報告書.pdf

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search
Go to page
next page →
next page →
next page →

Original file(785 × 1,087 pixels, file size: 2.83 MB, MIME type: application/pdf, 71 pages)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

導淮入江水道三河活動壩模型試驗報告書   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
鄭肇經總編纂
image of artwork listed in title parameter on this page
Title
導淮入江水道三河活動壩模型試驗報告書
Publisher
[中央水利實驗處]
Description

目錄
一 導言
二 試驗之資料
三 工程計畫及試驗項目
甲 工程計畫概要
乙 舉辦試驗時工程進行情形
丙 需要試驗之各項問題
四 模型之設計及製造
甲 試驗之設備
乙 模型比例率之決定
丙 模型砂礫之選擇
丁 模型之製造
五 試驗之進行及其結果
甲 河床沖刷試驗
1 試驗之目的
2 試驗之經過及其結果
試驗第一組——壩座形狀之研究
試驗第二組——消力檻形狀,位置及尺寸之研究
試驗第三組——中流量時消力檻之研究
試驗第四組——小流量時消力檻及河床鋪石之研究
試驗第五組——土埂沖刷可能性之研究
乙 活動壩流量係數之試驗
1 試驗之目的
2 試驗之經過及其結果
3 曲線之校正
4 等流量及等流量係數曲線之性質
a 最小水頭損失之解釋
b 曲線不連續性之解釋
5 應用流量係數曲線
6 小消力檻對於水位之影響
丙 閘門開啟尺寸與流量及上游水位之關係
1 試驗之目的
2 試驗經過及其結果
3 測驗數值之校正
4 等流量曲線之應用
六 模型與試驗之精確度
甲 模型之精確度
乙 流量之精確度
丙 水位之精確度
丁 流量係數之精確度
戊 等流量曲線之精確度
七 試驗結果之應用範圍
甲 水流情況
乙 沖刷情況
八 結論
九 附圖目次
1 導淮入江入海水道簡圖
2 三河活動壩總平面及正面圖
3 臨時水工試驗所設備簡圖
4 三河活動壩模型範圍圖
5 三河活動壩模型圖
6 煤屑組合曲線
7 三河活動壩修改壩墩圖
8 三河活動壩下遊河床縱斷面圖
9 三河活動壩模型試驗結果壩座形式圖
10 三河活動壩小消力檻形式圖
11 三河活動壩模型試驗結果壩墩及小消力檻立體圖
12 三河活動壩模型試驗結果河床鋪石尺寸圖
13 三河活動壩等流量及等流量係數曲線圖
14 三河壩等流量線之校正
15 第一次校正曲線
16 第二次校正曲線
17 等流量曲線最小水頭損失及不連續性之解釋
18 三河活動壩之流量,下游水深曲線
19 有無小消力檻水頭損失比較圖
20 流量與上游水位壩門開啟尺寸關係圖(n=0.0200)
21 流量與上游水位壩門開啟尺寸關係圖(n=0.0225)
22 流量與上游水位壩門開啟尺寸關係圖(n=0.0250)
附照片三十二幅

Language Chinese
Publication date 民國37[1948]
Source
institution QS:P195,Q732353
(民國時期文獻 民國圖書)
主題
InfoField
河道整治-淮河
中圖分類
InfoField
TV882.3
載體形態
InfoField
60頁

Licensing[edit]

This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
Public domain
This image is now in the public domain in China because its term of copyright has expired.

According to copyright laws of the People's Republic of China (with legal jurisdiction in the mainland only, excluding Hong Kong and Macao), amended November 11, 2020, Works of legal persons or organizations without legal personality, or service works, or audiovisual works, enter the public domain 50 years after they were first published, or if unpublished 50 years from creation. For photography works of natural persons whose copyright protection period expires before June 1, 2021 belong to the public domain. All other works of natural persons enter the public domain 50 years after the death of the creator.
According to copyright laws of Republic of China (currently with jurisdiction in Taiwan, Penghu, Kinmen, Matsu, etc.), all photographs and cinematographic works, and all works whose copyright holder is a juristic person, enter the public domain 50 years after they were first published, or if unpublished 50 years from creation, and all other applicable works enter the public domain 50 years after the death of the creator.

Important note: Works of foreign (non-U.S.) origin must be out of copyright or freely licensed in both their home country and the United States in order to be accepted on Commons. Works of Chinese origin that have entered the public domain in the U.S. due to certain circumstances (such as publication in noncompliance with U.S. copyright formalities) may have had their U.S. copyright restored under the Uruguay Round Agreements Act (URAA) if the work was under copyright in its country of origin on the date that the URAA took effect in that country. (For the People's Republic of China, the URAA took effect on January 1, 1996. For the Republic of China (ROC), the URAA took effect on January 1, 2002.[1])
To uploader: Please provide where the image was first published and who created it or held its copyright.

You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that this work might not be in the public domain in countries that do not apply the rule of the shorter term and have copyright terms longer than life of the author plus 50 years. In particular, Mexico is 100 years, Jamaica is 95 years, Colombia is 80 years, Guatemala and Samoa are 75 years, Switzerland and the United States are 70 years, and Venezuela is 60 years.


čeština  Deutsch  English  português  română  slovenščina  Tagalog  Tiếng Việt  македонски  русский  മലയാളം  ไทย  한국어  日本語  简体中文‎  繁體中文  +/−



This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.


Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current19:06, 21 April 2023Thumbnail for version as of 19:06, 21 April 2023785 × 1,087, 71 pages (2.83 MB)PencakeBot (talk | contribs)Upload 導淮入江水道三河活動壩模型試驗報告書 (1/1) by 鄭肇經總編纂 (batch task; nlc:data_416,08jh013090,31515; 民國圖書-PD2022.2; 導淮入江水道三河活動壩模型試驗報告書)

Metadata