一种新型高压渗透加压及自动控制装置

• 作 者: 刘杰 诸玉棠 游凡 缪良娟
• 机 构: 水利水电科学研究院岩石土工研究所,北京市水利科学研究所,水利水电科学研究院岩石土工研究所,水利水电科学研究院岩石土工研究所,
• 出 处: 大坝观测与土工测试
• 发表日期: 1982年02期
• 关键词: 渗透稳定 自动控制装置 无粘性土 供水设备 水压力 提升装置 提升高度 空间高度 水头 压力控制

一、前言以往在进行土的渗透稳定试验时,供水设备都是利用升降式的供水筒(箱),水压力依靠供水筒的提升高度来控制。这种设备的缺点是依靠供水筒自动溢流的方式来保持常水压力,消耗的水量大;另外能施加的最大水压力往往受室内空间高度和提升装置的限制。所以,一般只能用到4～5米水头.由于可提供的水头较小,多用于无粘性土的渗透及渗透稳定试验中。

I. Foreword In the past, during the soil penetration stability test, the water supply equipment all used the elevating type water supply tank (box), and the water pressure was controlled by the lifting height of the water supply tube. The disadvantage of this device is that it relies on the automatic overflow of the water supply tube to maintain the constant water pressure and consume a large amount of water. In addition, the maximum water pressure that can be applied is often limited by the height of the indoor space and the lifting device. Therefore, the general can only use 4 to 5 meters head, due to the smaller head can provide, more for non-cohesive soil infiltration and infiltration stability test.