Sampling structure and sampling method for ocean exploration

Abstract

The invention discloses a sampling structure and a sampling method for ocean exploration. The sampling structure comprises a supporting table, a balancing weight which is installed at the bottom of the supporting table and is of an annular structure, an auxiliary device which is installed on the supporting table and used for assisting in being inserted into silt, and a sampling device which is installed on the auxiliary device and used for collecting samples. The auxiliary device comprises a box body, a multi-directional driving assembly which is installed in the box body and can ascend, descend and rotate, and a drilling assembly which is installed on the multi-directional driving assembly and moves along with the multi-directional driving assembly. The sampling device comprises a plurality of sampling assemblies installed on the drilling assembly, and a plurality of sealing assemblies which are installed on the drilling assembly and are used for sealing the sampling assemblies. The sampling structure and the sampling method can overcome the defects of the prior art, and are specially used for ocean exploration, and the structure is large in sampling amount, wide in application range and small in sample loss amount.

Description

technical field [0001] The invention relates to the technical field of sampling equipment for ocean exploration, in particular to a sampling structure and a sampling method for ocean exploration. Background technique [0002] 71% of the earth's surface is occupied by oceans. The vast oceans are rich in resources. In addition to hundreds of billions of tons of oil and trillions of cubic meters of natural gas under the seabed, there are also tens of billions of tons of various metal minerals, etc. . At the same time, the ocean has a major impact on the climate of the entire earth. In recent decades, scientists have discovered that El Niño, an ocean phenomenon, has made the climate on the earth abnormal, as well as the impact of sea level rise. These all explain The importance of marine research, and marine exploration sampling surveys are of great significance to marine research. [0003] The existing marine exploration sampling needs to obtain the topography and geological ...

AI Technical Summary

Problems solved by technology

[0003] The existing marine exploration sampling needs to obtain the topography and geological parameters of the seabed. The sampling equipment for marine exploration is completed. The existing sampling equipment is generally a columnar sampler, which is suspended by a cable and then impacted to the seabed by gravity. Columnar sampling The sampler is inserted into the bottom of the sea, and the sample is randomly collected into the sampler, and then the sampler is pulled up by the cable and recovered to the deck. However, the column sampler has the following problems: First, the sampling volume is small, and the sampling function of different depths cannot be realized, and it needs to be released once. Multiple sampling devices greatly increase the cost of sampling; second, the scope of application is limited and cannot be applied to the sampling of hard sediment; third, there is no effective closing device after the collection is completed, resulting in serious sample loss when the sampler is pulled out

Images