The staff of the Shenzhen Geological Bureau took the rig to the abnormal section. After preparing for the work, the drilling hole was determined. A total of five holes were drilled, the deepest 12 meters and the shallowest 4 meters. During the drilling process, they determine the underground geology through the footage and backwater conditions of the rig. The Sauer rig is mainly drilled by manual pressure. When the rig is found to be fast and does not require too much pressure, it indicates that there is an abnormality in the ground. The staff recorded the initial depth of the fast forward. Calculate the thickness and position of the abnormal area, turn off the rig water source, perform representative sampling, and verify the geophysical results completely and reliably after 3 hours. There are five places between 3 meters and 4 meters underground in the lot. The geological structure is loose and the water content is very large. It belongs to the flowing sand layer. There is a hole of nearly 1 meter in a position below about 8 meters.
The US Sauer single backpack core sampling rig has a specially formulated diamond drill bit with long service life, fast drilling speed and a depth of 20 meters. This is a patented product in the United States. The rig is light in weight and can be carried by a single person. It is easy to carry and flexible. It is more suitable for construction and drilling and forensics under these industrial and mining mines. A set of 3m standard Sauer drilling rigs weighs only 18kg, easy to disassemble, easy to install, fast core, flexible operation, applied to physical and chemical exploration sampling, regional geological mapping, mine vein exploration, mine collection evaluation, geotechnical Engineering inspection, various blasting holes.
The sampling of the rig can replace traditional sampling such as manual excavation, troughing and well testing, which not only accelerates the efficiency of sampling, but also greatly reduces the damage to vegetation, protects the environment, and becomes an indispensable technology in shallow geological exploration. means.
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