Rubber dam, also known as rubber sluice, is made of high-strength synthetic fiber fabric as a force skeleton. The inner and outer layers of fabrics are coated with rubber as a protective layer to processed into the rubber body. The rubber body is anchored on the concrete foundation to form a closed dam bag. Pipes need to be laid in advance under the concrete foundation. Inflation and deflation of the rubber dam can be carried out automatically and by remote control.
A rubber dam is formed by pumping air or water into the body. The air is supplied from an air blower and water can be supplied from the mains or through a pump. Generally, the filling and discharging time of water filled rubber dam is longer than that of air filled rubber dam. The cost of these two kinds of rubber dams is similar. Rubber dam can be divided into pillow type rubber dam, inclined rubber dam, rubber dam with spoilers, fin rubber dam, arc rubber dam collapsible weir. Rubber dam project includes rubber dam bag, anchorage system and filling and discharging control system. The rubber dam is easy to operate and is extremely durable. Rubber dam project has short construction period and low overall cost. A lightweight structure of rubber dam means better earthquake resistance.
Although the rubber dam is rarely repaired, unlike the conventional steel gate, which needs to be painted regularly to prevent rust. Regular inspection of rubber dam should be carried out, especially after the flood. It is necessary to check whether there are any floating objects or debris causing stabbing damage to the dam bag, as well as the damage caused by the vibration of the dam body, the abrasion of the dam bag and the concrete foundation, and the friction of stones in the river against the dam bag. Rubber dam is easy to be damaged by sharp objects, so the management scope and safety area of rubber dam project should be defined on site.
In the 1950s, in order to meet the needs of industrial and agricultural production, rubber dam came into being. The rubber dam is a permanent structure which is formed by pumping air or water into the dam body. The dam body is made up from layers of fabric which are coated with synthetic rubber. Since 1994, HUAHAI has been involved in the design, supply and manufacture of rubber dams and spillway gates around the world. Compared with other stone and steel dams, the most prominent feature of HUAHAI rubber dam is that the dam body is fabricated in one piece at the factory and rolled up for easy transportation to site, which shortens the construction period.
随着我国城市现代化步伐的加快，城市河道在城市经济发展和生态保护中的作用越来越重要，全国各地把在城市河道兴建橡胶坝作为改善城市生态环境，谋求社会、经济效益以及综合开发城市河道的主要工程措施。华海曾在 2001 年承制了太原市汾河橡胶坝工程中的橡胶坝袋，全长 225.3 米，高 2.5 米。2001 年12 月 28 日，建设部授予该项目“中国人居环境最佳范例奖”；2002 年 5 月 30 日联合国人居署授予太原汾河景区“2002 年迪拜国际改善人居环境最佳范例称号奖”。2005 年 8 月国家水利部授予汾河景区“水利风景区”，10 月国家体育总局授予汾河景区“优秀体育公园”。太原市的“汾河公园”、临沂市环城水系的规划建设、北京潮白河奥运工程、江北水城—山东聊城、“打造合肥塞纳河”水景蓝图等建设项目，均是采用橡胶坝工程进行河道整治，促进城市功能的发挥。随着橡胶坝技术的进一步发展，其应用范围也会越来越广。
为了拓展橡胶坝的环境美化功能，华海从 90 年代初期就研制了彩色橡胶坝。色彩艳丽的橡胶坝在溢流时，形如彩色瀑布，与青山绿水浑然一体。华海的彩色橡胶坝，采用独特配方、优质原料和先进生产工艺，坝袋色泽均匀稳定，可保持多年不掉色，达到国际先进水平。