In the 1950s, to meet the needs of industrial and agricultural production, rubber dams became a shining pearl in the field of water conservancy construction due to their unique materials, flexible functions and cost-effective advantages.

Qingdao Huahai Environmental Protection Industry Co., Ltd. has been deeply engaged in the rubber dam field under the philosophy of "Technological Innovation, Environmental Protection for Public Benefit". In the production and manufacturing process, the company has established standardized production workshops and a strict quality inspection system. Every procedure, from raw material procurement to finished product delivery, is subject to multiple rounds of strict checks.

Whether it is the anti-freezing rubber dams suitable for the frigid northern regions or the corrosion-resistant rubber dams tailored for the rainy southern environments, Qingdao Huahai Environmental Protection is capable of providing customized production according to customer requirements, ensuring the stable operation of products under different working conditions.

Thanks to its superior product quality and thoughtful after-sales service, the rubber dam products of Qingdao Huahai Environmental Protection have been widely applied in water conservancy projects across many provinces and cities nationwide, winning unanimous praise from customers.

Application Empowerment: Diversification of Qingdao Huahai Rubber Dams

The rubber dam products of Qingdao Huahai Environmental Protection have shone brilliantly in such fields as flood control and mitigation, farmland irrigation, urban landscape construction, and ecological management, thanks to their outstanding performance and wide applicability.

① "A Vivid Brush for Urban Landscapes"

In the regulation of urban inland rivers and landscape construction, the artificial lakes formed by water retention with rubber dams of Qingdao Huahai Environmental Protection feature rippling blue waves, forming a delightful contrast with the surrounding greenery and footpaths.

For example, Huahai undertook the manufacturing of rubber dam bags for the Fenhe River Rubber Dam Project in Taiyuan back in 2001, with a total length of 225.3 meters and a height of 2.5 meters. On December 28, 2001, the Ministry of Construction honored the project with the "China Habitat Environment Model Award"; on May 30, 2002, the United Nations Human Settlements Programme (UN-Habitat) awarded the Taiyuan Fenhe River Scenic Area the "2002 Dubai International Award for Best Practices to Improve the Living Environment". In August 2005, the Ministry of Water Resources designated the Fenhe River Scenic Area as a "National Water Conservancy Scenic Area", and in October of the same year, the General Administration of Sport of China named it an "Outstanding Sports Park".

Projects including the "Fenhe River Park" in Taiyuan, the planning and construction of the ring water system in Linyi, the Olympic-related project along the Chaobai River in Beijing, the "Northern Water City" – Liaocheng in Shandong Province, and the water landscape blueprint of "Building Hefei’s Seine River" all adopted rubber dam projects for river regulation, thereby boosting the full play of urban functions.

② "A Power Engine for Reservoir Efficiency Enhancement"

In reservoir spillway projects, power stations in many regions have selected the rubber dams of Qingdao Huahai Environmental Protection to unlock the potential benefits of reservoirs or hydropower stations.

Rubber dams effectively resolve the conflict between water storage for power generation and flood control. During the non-flood season, inflating the dams to retain water can maximize the normal water level, increase water volume, and fully utilize the surplus water head. On the contrary, during the flood season, deflating the dams makes them function exactly like the original overflow weirs without impeding flood discharge.

③ "A Source of Bumper Harvests for Farmland Irrigation"

In the vast rural irrigation areas, the rubber dams of Qingdao Huahai Environmental Protection, with their excellent water storage capacity, can effectively intercept surface runoff and transit water resources, significantly improving the guaranteed rate of irrigation water supply.

By flexibly regulating the water level, they can not only expand the irrigation area but also store sufficient water resources in dry years to meet the irrigation needs of crops during their critical growth periods.

④ "A Flexible Barrier for River Regulation"

In river regulation projects, the rubber dams of Qingdao Huahai Environmental Protection can be used as low-head, long-span overflow dams or overflow weirs.

Compared with conventional sluice gates, they do not require complex supporting facilities such as hoists and service bridges, which greatly simplifies the project structure and reduces construction and maintenance costs.

Thanks to their long-span advantage, these dams can adapt to river terrains of varying widths. When filled with water, they form a smooth overflow surface, which not only achieves water level elevation and water volume regulation but also minimizes interference with the river’s original ecosystem.

Future Outlook: Leading the New Development of Flexible Water Conservancy through Innovation

In response to the new demands of water conservancy construction in the new era, Qingdao Huahai Environmental Protection Industry Co., Ltd. will continue to uphold the spirit of innovation, increase R&D investment, and drive the development of rubber dam technology toward the directions of higher dam height, longer dam length and greater intelligence.