engineering

Qiu Dahong

Qiu Dahong is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Qiu Dahong rather than just read about it. In short: Qiu Dahong (Chinese: 邱大洪; pinyin: Qiū Dàhóng; 6 April 1930 – 11 January 2025) was a Chinese coastal and offshore engineer. He served as chief engineer of the Dalian Fishing Port, the New Dalian Port, the Qinhuangdao Petroleum Port, and many other projects.

Key takeaways

Qiu Dahong belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Qiu Dahong to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Qiu Dahong from memory before moving on to harder problems.

Reference excerpt

Qiu Dahong (Chinese: 邱大洪; pinyin: Qiū Dàhóng; 6 April 1930 – 11 January 2025) was a Chinese coastal and offshore engineer. He served as chief engineer of the Dalian Fishing Port, the New Dalian Port, the Qinhuangdao Petroleum Port, and many other projects. He was a professor of the Dalian University of Technology and directed the State Key Laboratory of Coastal and Offshore Engineering. He was elected an academician of the Chinese Academy of Sciences in 1991.

Life and career Qiu was born on 6 April 1930 in Shanghai, Republic of China, with his ancestral home in Huzhou, Zhejiang. After graduating from the Department of Civil Engineering of Tsinghua University in 1951, he joined the Dalian University of Technology (DUT), where he worked under Professor Qian Lingxi and helped create China's first port and harbour engineering program. In 1958, Qiu was appointed chief engineer for the construction of Dalian Fishing Port at the age of 28. The port, designed to occupy 50,000 square metres (540,000 sq ft) of open water with docks for 300 fishing boats, was unprecedented in China in both scale and difficulty. When completed in 1966, it was Asia's largest fishing port. In 1987, Qiu again served as chief engineer for the port's expansion project, which was completed in 1989. In 1973, Qiu became chief engineer of the New Dalian Port, the first port in China capable of handling oil tankers with a displacement of 100,000 tons. It was opened in 1976, and won a national gold medal for its design. Qiu later led or participated in the design of the Qinhuangdao Petroleum Port, the Lianyungang Container Port, the Shenzhen Chiwan Port, the Hainan Petroleum Port, the Yamen Shipping Channel of the Pearl River estuary, and the Yangshan Port of Shanghai. Qiu served as Director of the State Key Laboratory of Coastal and Offshore Engineering at DUT and was elected an academician of the Chinese Academy of Sciences in 1991. In 1992, he was elected a Central Committee member of the Jiusan Society. On 11 January 2025, Qiu died in Dalian at the age of 94.

Publications Qiu published more than 100 scientific papers and multiple monographs and textbooks. In addition to coastal and offshore engineering, he researched wave theory and conducted experiments to calculate the forces that sea waves exert on engineering structures. In 2011, China Ocean Press published The Collective Writings of Qiu Dahong (邱大洪文集), which includes 93 scientific papers, 15 published articles on port construction projects, and 20 other articles.

References

Worked examples

Example 1 — a first encounter with Qiu Dahong

Start with the simplest possible case. Write down what Qiu Dahong claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Qiu Dahong before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Qiu Dahong ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Qiu Dahong

In research: Qiu Dahong appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Qiu Dahong in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Qiu Dahong is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1930 births, 2025 deaths, Academic staff of Dalian University of Technology, so understanding it makes those chapters shorter.
In everyday life: Look for Qiu Dahong outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Qiu Dahong in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Qiu Dahong means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Qiu Dahong out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Qiu Dahong in simple terms?

Why does Qiu Dahong matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Qiu Dahong?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Qiu Dahong.