Rock-soil sampling equipment for geotechnical engineering

Abstract

The invention discloses rock-soil sampling equipment for geotechnical engineering. The rock-soil sampling equipment comprises a machine body, supporting legs with universal wheels, a screw rod, an outer pipe body, an inner pipe body and a drill bit. The supporting legs are installed at the four corners of the bottom end face of the machine body. A screw rod is inserted into the middle of the interior of the machine body. A drill bit is integrally welded at the bottom end of the screw rod. An inner pipe body fixedly sleeves the bottom end, close to the drill bit, of the screw rod. The inner pipe body is sleeved with an outer pipe body in a sliding mode. A plurality of groups of bearings for supporting are arranged between the inner pipe body and the outer pipe body. Two sets of handles aresymmetrically welded to the top end of the outer pipe body, the portion, above the outer pipe body, of the screw rod is sequentially sleeved with a first fixing block and a second fixing block, the first fixing block is arranged below the second fixing block, and L-shaped supporting rods are welded to the four side faces of the first fixing block respectively. According to the rock-soil sampling equipment for geotechnical engineering, sampling is facilitated, the sampling depth and the accuracy of a sampled sample are ensured, and therefore the accuracy of a result is improved.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering equipment, and in particular relates to a rock soil sampling device for geotechnical engineering. Background technique [0002] Geotechnical engineering is a new technical system established in the practice of civil engineering in European and American countries in the 1960s. Geotechnical engineering takes the solution of rock mass and soil engineering problems, including foundation and foundation, slope and underground engineering, as its research object. With the development of various ownership engineering construction enterprises and the breaking down of barriers to cross-regional operations, the geotechnical engineering market is already in a state of complete competition. The undertaking of geotechnical engineering projects is mainly realized through public bidding activities. The degree of marketization in the industry is relatively high, and the market concentration is re...

AI Technical Summary

Problems solved by technology

Existing sampling equipment generally samples by lowering the drill bit, so that after the sampling is completed, it is easy to mix samples at different depths. During the sampling process, rock and soil layers at different depths have different properties, which affects the sampling results. In addition, the existing sampling equipment cannot accurately determine the sampling depth, which is easy to cause errors

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