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首页> 外国专利> METHOD OF STUDYING WATER PERMEABILITY AND SUFFUSION RESISTANCE OF STRUCTURAL UNIT MODEL OF GROUND HYDRAULIC STRUCTURE, WHICH CONSISTS OF UNBOUND EARTH AND FILTERING GEOSYNTHETIC MATERIAL

METHOD OF STUDYING WATER PERMEABILITY AND SUFFUSION RESISTANCE OF STRUCTURAL UNIT MODEL OF GROUND HYDRAULIC STRUCTURE, WHICH CONSISTS OF UNBOUND EARTH AND FILTERING GEOSYNTHETIC MATERIAL

机译：研究由非约束地球和土工合成材料组成的地层水力结构的结构单元模型的水渗透性和抗渗性的方法

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FIELD: physics.;SUBSTANCE: invention relates to a method for investigating water permeability and suffusion resistance of a structural unit model of a ground hydraulic structure, which consists of non-cohesive soil and filtering geosynthetic material, including arrangement of structural element model on lower grid lying on fixed support grid located in lower part of filtration chamber, laying a sample of loose earth, performed by separate layers, subjecting it to easy compaction by pressing, and near walls of filtration chamber - by means of installation of the installation above the sample of unbound earth of upper mesh, then of movable loading grid, on which by means of a load transfer device a given load is transmitted, water saturation of the soil sample with boiled or distilled water with an upward flow direction, creation of pressure by the upper and lower cisterns tanks by supplying water to the tank of the upper pool by a pump from the water reservoir coming through the pipe, determining the pressure gradient from the readings of the tubular piezometers connected to the tanks of the upper and lower beams, determining the load on the soil from the load sensor, fixing the settling of the movable loading grid by the linear displacement sensor, calculation of coefficient of soil sample filtration at ascending or descending direction of water flow. Method is characterized by that a sample of the geosynthetic material of the structural element model pre-conditioned for at least three hours in distilled water is placed in a filtration chamber and uniformly distributed over the surface of the lower mesh, the connection of the conical settling tank and the filtration chamber is sealed by tightening the flange joint using bolts which provide uniform clamping of the sample of the geosynthetic material along the perimeter, then placing on sample of geosynthetic material sample of unbound earth with layer-by-layer compaction by pressing such that thickness of layer of loose earth is not less than half of inner diameter of filtration chamber, after examination, a sample of the geosynthetic material is extracted from the filtration chamber, dried to an air-dry state, is weighed and the amount of soil which has been subjected to clogging of the sample of the geosynthetic material is determined by comparing its weight with the weight of the sample of the geosynthetic material installed before the investigation, and residual water permeability and the filtration coefficient of the sample of the geosynthetic material are determined.;EFFECT: use of the proposed method enables higher reliability, accuracy and effectiveness of the studies.;1 cl, 4 dwg
机译：用于研究由非粘性土和过滤的土工合成材料组成的地面水工结构的结构单元模型的透水性和抗渗性的方法，包括将结构单元模型布置在下部网格位于位于过滤室下部的固定支撑网格上，放置一块松散的土壤样本，分层进行，通过挤压使其易于压实，并靠近过滤室的壁-通过安装在过滤室上方的装置上部网格的未结合的土壤样本，然后是可移动的加载网格，在该网格上通过载荷传递装置传输给定的载荷，土壤样品的水饱和度为向上流动方向的沸腾或蒸馏水，通过d）上，下水箱水箱，通过水从水管通过泵向上水池的水箱供水，d根据与上下梁的储罐相连的管状压力计的读数确定压力梯度，通过载荷传感器确定土壤上的载荷，通过线性位移传感器固定可移动载荷网格的沉降，计算系数沿水流的上升或下降方向过滤土壤样品的过程。该方法的特征在于，将在蒸馏水中预先调节至少三小时的结构元件模型的土工材料样品放置在过滤室中，并均匀分布在下部筛孔的表面，圆锥形沉降的连接通过使用螺栓拧紧法兰接头来密封储罐和过滤室，该螺栓将土工合成材料样品沿周边均匀地夹紧，然后将未结合的土壤样品放在土工合成材料样品上，并通过逐层压紧将其压紧。疏松土层的厚度不小于滤室内径的一半，检查后，从滤室中提取土工材料样品，干燥至风干状态，称重，取土量通过比较土工合成材料样品的重量与土工合成材料样品的重量，可以确定土工合成材料样品是否已堵塞。研究之前安装的土工合成材料样品，并确定了土工合成材料样品的残留水渗透率和过滤系数。;效果：所提方法的使用可提高研究的可靠性，准确性和有效性。; 1 cl 4 dwg

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