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在为水工建筑所进行的工程地质勘探中,了解基础岩石的裂隙性与渗透性,是一项极其重要的工作。要了解岩石的裂隙性,进行硐探当然最为可靠。要了解岩石的渗透性,无疑的是以进行抽水试验比较精确。但硐探费用大,而且开挖至地下水面以下需要排水,增加了工作中的困难。进行抽水试验,器材设备又较复杂,同时又只限于在含水地层中进行。如地下水埋藏很深,岩石的渗透性又很强时,困难也很多。钻孔压水试验,就目前来看,可以说是了解岩石
It is an extremely important task to understand the fracture and permeability of basic rocks in engineering geological exploration for hydraulic structures. To understand the fissure of rocks, it is certainly the most dependable for exploration. To understand the permeability of rocks, it is undoubtedly more accurate for pumping tests. However, the cost of exploration is large, and the excavation to the surface below the surface of the need for drainage, increasing the difficulties in their work. Pumping tests, equipment and equipment are more complex, but only limited to the water-bearing formations. Such as groundwater buried deep, rock permeability is very strong, the difficulties are many. Drilling pressure test, for the moment, we can say that is to understand the rock