Lake ocean bottom mud core sampler and method of use thereof

Abstract

The invention discloses a mudstone core sampler at the bottom of lakes and seas and a method for using the sampler. A generator and a motor are installed on the transverse frame of the sampler. The motor is connected with a winch, and an oil rope is wound on the winch. The lower fixed pulley is fixed at the vertical corner, and the lower fixed pulley is connected with the reverse hook. The pulleys, the double pulleys and the upper fixed pulley are connected with the winch through the oil rope. A slide plate is hung under the double pulleys, the main head is fixed on the slide plate, and pipe clips are installed on both sides of the lower end of the longitudinal frame. The sampling process of the present invention is simple and fast, meets the requirement of sampling depth, and the sampling cost is low, which fully guarantees the sampling efficiency and success rate. Moreover, according to the sample depth requirements of different scientific research institutions, the instrument can be modified according to the ratio of the horizontal frame and the vertical frame. Meet the needs of deeper samples.

Description

technical field [0001] The invention relates to the technical fields of hydrogeology, surveying, and water environment engineering, and in particular to a lake and ocean bottom mud core sampler. Background technique [0002] The deep water bottom mud core sampling equipment of traditional technology generally has the problem of difficult sampling. If the bottom mud core of more than 3m is taken in the deepest part of the lake, it will be a problem for the stability of the equipment and to overcome the water pressure and atmospheric negative pressure. The disadvantage is that if the bottom mud sample is required to be longer, it needs to be sampled several times continuously, which disturbs the connection of the samples. The core drilling equipment used in the existing engineering is all rotating, which greatly disturbs the core and affects the scientific research data. accuracy; it is found from existing reports and field investigations that existing sampling equipment can o...

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Problems solved by technology

[0002] The deep water bottom mud core sampling equipment of traditional technology generally has the problem of difficult sampling. If the bottom mud core of more than 3m is taken in the deepest part of the lake, it will be a problem for the stability of the equipment and to overcome the water pressure and atmospheric negative pressure. The disadvantage is that if the bottom mud sample is required to be longer, it needs to be sampled several times continuously, which disturbs the connection of the samples. The core drilling equipment used in the existing engineering is all rotating, which greatly disturbs the core and affects the scientific research data. accuracy; it is found from existing reports and field investigations that existing sampling equipment can only collect surface sediments, but cannot reach the depth required for scientific research; Several times of continuous sampling, the continuity of the sediment core cannot be guaranteed, and the connection will be disturbed, which will affect the accurate judgment of some scientific issues. The sampling process is cumbersome and the sampling success rate is low. At the same time, the existing technology and equipment operation process requires a lot of manpower, Material resources greatly increase the cost, and the sampling cost is high. Based on this, it is still necessary to design a lake and ocean bottom mud core sampler

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