Development of concrete block for improving water environment by making use of natural purification

1.技术岩是一种混凝土砌块，最初设计用于在高流量时保护河床。结果表明，该河段具有净水能力和营造河流生态系统的功能。进行了实验，以研究如何提高街区的动力能力和环境能力。为了防止冲刷或淤积，研究了在砌块顶部和内部加装遮阳板的效果。在试验的几种遮阳板中，竖井内侧安装的两种遮阳板对冲刷和泥沙的保护效果最好。上游边顶部的遮阳板降低了冲刷速度，而下游边洞口的遮阳板防止了泥沙的沉积。最近，为恢复受损的河流生态系统和改善流域管理作出了努力。我们已经提出了维护或创造河岸生态系统的母岩。该街区由两个空间组成，两个空间都与土地直接相连。上面的空间是用石头填满的，可以很好地排水，这样银行就应该得到保护，不会倒塌。较低的空间计划填充适合稳定植物植被的土壤。这块积木在稳定银行方面很有用。创造野生动物栖息地，提供准自然景观。

1. Techno-rock is a concrete block which was originally designed as a protector of the riverbed during high water discharge. It is revealed that the block has a water purifying ability and a function of creating ecosystem in rivers. Experiments were performed to investigate how to enhance both dynamical and environmental abilities of the block. In order to protect scour or sedimentation, effects of attaching shades at the top and the inside a hole of the block were examined. Among several types of shades tested, two-shades type attached to the inside of the vertical hole were most effective to protect both the scour and the sedimentation. Shades sttached at the top of the upstream side reduced the scouring rate, whereas shades in the hole of the downstream side prevented the sedimentation.2. Very recently, attempts have been made to restore damaged ecosystems in rivers and to improve watershed management. We have proposed the Mother's Rock which maintains or creates ecosystems along riverbanks. The block consists of two spaces, both are directly connected to the land. The upper space is filled with stones to drain well, so that banks should be protected from failure. The lower space is planned to be filled with soil suitable for stabilizing plant vegetations. The block can be useful in stabilizing the bank. creating wildife habitat and providing quasi-natural landscapes.