采用土工织物过滤的河床取水井

为了扩大土工织物的应用领域，介绍了利用河床凸岸的砂卵石冲积层作为滤料，采用土工织物起隔离保砂作用，使原河水通过滤层得到净化的河床取水井，并阐明了供水工艺流程，取水井的特点与构造，土工织物的设计，引水管和取水井渗流量的分析计算及技术经济比较。

River Bed Water Intake Well With a Geotextile Filter

The river bed water intake well purified by a geotextile filter is introduced for expanding application area of geotextile. The filter material of the geotextile filter is the sandy alluvium of the convex bank of the river. The function of the geotextile is separation and protection of sand entrance. The technology process of water supply, property and structure of water intake well, design of geotextile, seepage calculation of water diversion pipe and intake well and technical and economic comparision are also explained.