Chun'an Ecological Shield Rubber Dam: A "Smart Water Governance Model" for Safeguarding the Source of Qiandao Lake

As a vital ecological barrier for Qiandao Lake, Chun'an County in Zhejiang Province has introduced the first shield rubber dam in the county for the management of the Yuchuanxi River Basin in Jiangjia Town. With an intelligent solution integrating "flood control, ecology, and landscape," it addresses the challenges of mountainous river management. The core equipment of this dam is technically supported by Qingdao Hechang High-Tech Equipment Manufacturing Co., Ltd.

I. Pain Points in River Basin Management: Multiple Challenges for Mountainous Rivers

The Yuchuanxi River Basin features complex terrain. Heavy rains during the flood season easily trigger floods, while insufficient water levels in the dry season restrict farmland irrigation and ecological water replenishment. Meanwhile, as a tributary in the upper reaches of Qiandao Lake, its management must balance water quality protection and landscape development. Traditional dam types either have weak flood control capabilities, face difficulties in silt cleaning, or lack landscape value, making it hard to meet comprehensive needs.

II. Shield Rubber Dam Technology: An "Efficient Tool for Water Governance" with Integrated Advantages

This shield rubber dam combines the strengths of rubber dams and steel plate dams, and has been upgraded with intelligent technologies:

• • Construction and Structure: It has a simple structure that adapts to the complex foundations of mountainous areas, with a short construction period (the project can be completed within several months).
• • Hydraulic Functions: The mechanism of "inflating to retain water and deflating to discharge floods" enables rapid response and excellent flood control and drainage capabilities. It also has strong sewage and silt removal abilities, preventing sediment accumulation.
• • Intelligence and Landscape: Equipped with an intelligent system, it realizes "one-click inflation and deflation" for precise water level regulation. The waterfall landscape formed when water flows over the dam not only improves the microclimate but also serves as a carrier for ecological beauty.

III. Ecological and Livelihood Benefits: From Water Governance to Benefiting People and Nourishing Ecology

Since the shield rubber dam was put into use, multiple win-win outcomes have been achieved:

• • Water Security: It efficiently discharges floods to reduce flood risks in the flood season and stores water stably to ensure irrigation and ecological water replenishment in the dry season, transforming irrigation from "relying on the weather" to "being precise."
• • Ecological Restoration: It releases ecological water flow and reduces disturbances to the aquatic ecosystem, supporting the habitats of fish and other organisms and enhancing biodiversity in the river basin.
• • Landscape for People's Well-being: The dam integrates with the mountains, rivers, and villages. The formed open water surface has become a leisure area for residents, turning the water conservancy project into an "ecological landscape landmark."

From addressing management pain points, to unleashing technological advantages, and finally to achieving a win-win situation for both ecology and people's livelihoods, the Chun'an Ecological Shield Rubber Dam has become a vivid practice in ecological protection and green development of Qiandao Lake.