Definition

1. Noun:
   • Spillway: A structure built over or as part of a dam, used to release excess water from a reservoir in a controlled manner to prevent the dam from being overtopped or damaged.
   • Weir: A low dam or barrier built across a river to raise the water level or divert its flow, often incorporating a section where water can flow over the top.

Usage Examples

• Noun:
  • Kỹ sư thiết kế một đập tràn mới cho con đập. (The engineer designed a new spillway for the dam.)
  • Nước bắt đầu chảy qua đập tràn sau trận mưa lớn. (Water began to flow over the weir after the heavy rain.)
  • Đập tràn giúp kiểm soát mực nước trong hồ chứa. (The spillway helps control the water level in the reservoir.)

Advanced Usage

• In hydraulic engineering, an "ogee spillway" is a common design with an S-shaped curve that efficiently guides water flow.
  • Đập tràn kiểu ogee thường được sử dụng trong các đập lớn. (The ogee-type spillway is commonly used in large dams.)

Variants and Related Words

• Đập tràn xả lũ (n): Flood discharge spillway; a spillway specifically designed for releasing floodwaters.

  • Đập tràn xả lũ đã được kích hoạt trong mùa mưa bão. (The flood discharge spillway was activated during the storm season.)

• Đập tràn đỉnh rộng (n): Broad-crested weir; a weir with a wide crest used for flow measurement.

  • Đập tràn đỉnh rộng dùng để đo lưu lượng nước. (A broad-crested weir is used to measure water flow rate.)

Synonyms

• Spillway: A passage for surplus water.
• Weir: A small dam or barrier.
• Overflow: An outlet for excess liquid.

Related Technical Terms

• Điều tiết lũ (Flood regulation): The process of managing floodwaters, for which a spillway is a key structure.
• Hồ chứa (Reservoir): The artificial lake where water is stored behind a dam.

1. Spillway