目前自記水位計台与河流的联通,是靠在測井底部安設联通管的办法宋实現的。这种方法不适用于含沙量較大的山区河流,因为洪水上涨,測井及联通管常常很快被带进井管內的泥沙淤塞住,而清洗測井与联通管又非常費事。因此,在洪水期間自記水位計或者完全不能工作,或者工作时常被間断。 At present, self-recording water level meter and river Unicom, is based on the bottom of the well to connect the installation of the method of connecting Song achieve. This method is not suitable for mountainous rivers with high sediment concentrations because of the rising floods, logging and Unicom pipes often being quickly clogged with silt entrapped in the wellbore, which can be very laborious . Therefore, during the flood the self-recorded water level gauge either can not work at all, or the work is often interrupted.