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    • 53. 发明专利
    • Water permeability testing method
    • 水渗透性测试方法
    • JPS59119240A
    • 1984-07-10
    • JP22663482
    • 1982-12-27
    • Meisho Kk
    • OOTSUBO NORIO
    • E02D3/12E21B49/00G01N15/08G01N33/24
    • E21B49/008
    • PURPOSE:To find the water permeability of the ground, etc., automatically in a short time by raising and lowering the pressure of injected water while holding the maximum flow rate of injected water to a water permeability test hole, and finding the relation between the pressure and flow rate of the injected water continuously. CONSTITUTION:The water in a water tank 1 is sent to a pressure container 5 by a pump 2 and a water level controller 7 holds the water level. The pressure of compressed air from a compressor 13 is set to the lowest prssure by a pressure control valve 12. A two-way valve 11 is opened to flow the water into the water permeability test hole 10 through a flow rate detector 17 and a test is started. A maximum pressure gradient is found previously among pressure graddients with which the flow rate of the injected water is saturated, and the pressure gradient and maximum injected water pressure are set to a setter 21. A test controller 19 drives a prime mover 15 to operate the pressure control valve 12, and the pressure in the pressure container 5 is raised or lowered to the set pressure; and the current flow rate of the injected water is measured by the flow rate detector 17 to find the water permeability, which is recorded on a recorder 20.
    • 目的:通过提高和降低注入水的压力,在注入水的最大流量保持在透水性试验孔的同时,在短时间内自动找到地面的透水性,并找出其间的关系 连续注入水的压力和流量。 构成:水箱1中的水通过泵2送到压力容器5,水位控制器7保持水位。 来自压缩机13的压缩空气的压力通过压力控制阀12设定为最低压力。打开二通阀11,通过流量检测器17将水流入透水性试验孔10,并进行试验 开始了 先前在注入水的流量饱和的压力梯度之间发现最大压力梯度,并且将压力梯度和最大注入水压设置为设定器21.测试控制器19驱动原动机15操作 压力控制阀12,压力容器5内的压力升高或降低到设定压力; 并且通过流量检测器17测量注入的水的当前流量,以找到记录在记录器20上的透水性。