Drilling pressurized-water testing/grouting device

Abstract

The invention relates to a pressurized-water testing and grouting device in geological prospecting. The drilling pressurized-water testing / grouting device in the invention is composed of an air compressor / hand pump (1), an air tube (3), a locating joint (8), an air sac (11), a lower seal head (17), a communicating air tube (14), a shock tube (15), an enclosed air sac (16), a high pressure rubber tube (4) and a water / grout injection pump (7), wherein the locating joint is arranged above the air sac and is fixedly connected with the air sac into a whole, the air compressor / hand pump is communicated with the air sac by penetrating through the locating joint by virtue of the air tube, the lower end of the air sac is fixedly connected with the lower seal head, the water / grout injection pump (7) penetrates through the locating joint, the air sac and the lower seal head by virtue of the high pressure rubber tube (4) to be communicated with the shock tube, the enclosed air sac is arranged below the air sac, the two ends of the air sac are sealed by seal heads, and the communicating air tube penetrates through the lower seal head and the seal head above the enclosed air sac to cause the air sac and the enclosed air sac to be communicated.

Description

technical field [0001] The invention relates to a pressure water test device in geological exploration, and is also a grouting device. Background technique [0002] Chinese patent application 91205729.7 discloses a "pressurized water test device for engineering geological survey", which is used to measure the permeability of underground rock and soil layers, and can also be used for layered water level observation of hydrogeological drilling and pressure injection in foundation treatment. pulp. The device is mainly composed of a pressure gauge, a water supply pipe, an air pipe and a water stopper assembly. The water stopper assembly is connected with the water delivery pipe, and the two ends of the capsule are tightly sealed with joints and taper sleeves. The diameter of the water delivery pipe of the device is small, and there are only 1 to 2 water stopper assemblies, and the capsule can be inflated with an ordinary pump. The device is light in weight, simple in structur...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the geological exploration pressure water tests use drilling first, and the drill hole reaches the design depth, that is, the drill pipe and the drill bit are taken out together, and then the rubber mechanical plug is used to block the hole in sections to carry out the water pressure test, such as drilling 300 meters For deep holes, if 4-6 people are required to take out the drill pipes, it will take two working days. If the hole collapses and the blocking effect is poor, it has to be re-plugged and re-blocked. The workload is extremely large, labor-intensive and time-consuming, and the work efficiency is extremely low.

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