Applicable for spring water pressure testing! It can be attached to the water level measurement pipe and allows for instantaneous valve release at the start of the test.
The "trip valve" is used to determine the equilibrium water level, permeability coefficient, and hydraulic head of confined water in rock formations. The water pressure test is essential in mountain tunnel investigations and provides necessary values for seepage flow analysis during underground facility construction. Additionally, it allows for the detection of rapid groundwater declines and rises within the rock, predicting locations where sudden water inflow may occur. 【Features】 ■ Used to determine the equilibrium water level, permeability coefficient, and hydraulic head of confined water in rock formations ■ Suitable for water pressure tests ■ Predicts locations where sudden water inflow may occur ■ Rental period starts from a minimum of 5 days *For more details, please refer to the PDF document or feel free to contact us.
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【Specifications】 ■ Female Thread: AQ Rod Type ■ Male Thread: JIS 40.5 Type ■ Type that opens the valve by pressing the spring with a water level gauge with a weight attached *For more details, please refer to the PDF document or feel free to contact us.
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【Usage】 ■ When determining the equilibrium water level, permeability coefficient, and hydraulic head of confined water in rock formations ■ Spring water pressure testing ■ Permeability testing method for rock formations using the in-situ water level recovery method *For more details, please refer to the PDF document or feel free to contact us.
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Shimauchi Engineering Co., Ltd. has been involved in a wide range of ground-related operations since its establishment, from dam surveys to soft ground analysis, accumulating a wealth of achievements in investigations, testing, analysis, and underground environmental impact studies. We are also committed to innovating creative technologies to meet the diversifying social needs. Moving forward, we will continue to contribute to the construction of a sustainable and prosperous society based on the technology, experience, and trust we have cultivated.