Water pressure testing device for engineering geological investigation
A pressurized water test and engineering geological technology, which is applied in the direction of measuring devices, suspension and porous material analysis, instruments, etc., can solve the problems of affecting the test results, popping out, and poor sealing of boreholes, etc., to achieve strong practicability, Good sealing performance and simple mechanism
Pending Publication Date: 2019-09-27
POWERCHINA BEIJING ENG
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Problems solved by technology
In the pressure water test, because the inlet port of the borehole is not tightly sealed, the squeezed water will come out through the borehole, which will affect the test result
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[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0014] Such as Figure 1~2 Shown, the pressurized water test device that the engineering geological investigation of the present invention is used comprises water storage tank 1 and two pressurized water pipelines 2, is provided with water spray column 7 between two pressurized water pipelines 2, and the water spray column 7 The two ends are respectively connected to the two pressurized water pipes 2 through a sealed connection mechanism 8. The sealed connecte...
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The invention discloses a water pressure testing device for engineering geological investigation. The water pressure testing device comprises a water storage tank and two water pressing pipelines; a water spraying pipe column is arranged between the two water pressing pipelines; two ends of the water spraying pipe column are respectively connected with the two water pressing pipelines through sealing connecting mechanisms; a plurality of water spraying holes are formed in the outer side wall of the water spraying pipe column; the water incoming end of a pressure water pump is communicated with the interior of the water storage tank; a water incoming end opening is formed in the upper end of the water storage tank; the outer side walls of the two water pressing pipelines are provided with sealing air bag pipes; the two sealing air bag pipes are communicated with each other through a rubber connection air guide pipe; the sealing air bag pipe located at the upper side is connected with an air inflation air pump through a high-pressure air guide hose; the middle of the high-pressure air guide hose is provided with an air release valve; and a high-pressure water pipe is provided with a flow meter. The mechanism of the water pressure testing device of the invention is simple; the sealing performance of the water pressure testing device is good, so that the influence of the water leakage of two ends of a borehole on a test result can be avoided. The water pressure testing device has the advantages of simple and convenient test operation and high practicability.
Description
technical field [0001] The invention relates to the technical field of geological engineering, in particular to a water pressure test device for engineering geological survey. Background technique [0002] In the process of engineering geological survey, the water pressure test is an in-situ test that uses high pressure to press water into the borehole, and calculates the development of rock mass fissures and water permeability according to the water absorption of the rock mass. Pressurized water test is to isolate a certain length of drilling test section with special water-stop equipment, and then use a fixed water head to press water into this section of drilling. The water penetrates into the rock through the cracks around the hole wall, and finally penetrates. The amount of water will tend to a stable value. According to the pressurized water head, the length of the test section and the steady infiltration water volume, the strength of the water permeability of the roc...
Claims
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Login to View More IPC IPC(8): G01N15/08
CPCG01N15/0826
Inventor 刘琳李强李健王奶生魏金良陈建强
Owner POWERCHINA BEIJING ENG