Experimental Application of Borehole Water Pressure Test Instrument in Guxian Hydro-junction Project

Abstract:

Conventional water pressure test in dry deep hole of engineering geological investigation has been a technical problem in water pressure test for water conservancy and hydropower borehole. To solve the problem, borehole water pressure test instrument was developed and experimentally applied in Guxian hydro-junction project with good results. Based on the engineering practice, the paper made the comprehensive analysis on the application situation.

Key words:dry deep hole; water pressure test instrument; in-situ permeability test; Guxian hydro-junction