Lateral pushing device for preventing columnar sampler from toppling and using method

Abstract

The invention provides a lateral pushing device for preventing a columnar sampler from toppling and a using method. the device comprises four sets of propellers which are arranged in a cross-shaped symmetrical mode are arranged on the upper surface of the side pushing device, and four sets of pulley telescopic supports are installed in the side pushing device in a cross-shaped symmetrical mode; apropeller control bin, an attitude sensor, a pressure gauge and six sets of rechargeable battery packs are further annularly and fixedly installed in the side pushing device in sequence. According tothe technical scheme of the invention, the dumping posture of the columnar sampler in the underwater sampling process can be effectively corrected, the sampling success rate of an underwater columnarsediment sample is remarkably improved, the balance weight of the sampler and the length of the sampling pipe can be increased as required on the basis, the sampling length requirement of a marine sediment sample is met, and the time and labor cost of a sampling ship is saved. The lateral pushing device is wide in application range, is suitable for upgrading and reconstruction of an existing common columnar sampler with any caliber, has a certain application market, and can reduce development and manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of seabed exploration and the technical field of marine engineering geology, in particular to a lateral thruster for preventing a cylindrical sampler from toppling over and a method for using it. Background technique [0002] In marine geological survey, it is still necessary to obtain a certain amount of seabed sediment samples directly, no matter how far the geophysical exploration methods are developed. Only by obtaining a certain number of undisturbed samples of seabed sediments can the direct analysis of sediment particle size, specific surface area, microstructure, composition, etc., as well as the determination of mechanical indicators such as compressibility and shear strength, as well as bottom-up analysis. Sediment dating, extraction and identification of pore water in the sediment, and finally a large amount of valuable geological information and biochemical information of the sediment at the samp...

AI Technical Summary

Problems solved by technology

For one-time sampling, we need to obtain as long a sample as possible, which is conducive to analyzing the sedimentary stratum structure and age analysis, and the sampling efficiency is greatly reduced when the tube length of the ordinary columnar sampler exceeds 10m, because the center of gravity of the longer sampling tube is far away from the sampling tube Even if the inclination angle of the sampling tube inserted into the sediment is small, the sampling tube cannot be smoothly inserted into the sediment due to the high center of gravity, and it is difficult to ensure the sampling efficiency; even when the sediment is moderately soft and hard, the sampling tube head The sediment is inserted into the upper part, but at this time a large bending moment is generated and the sampling tube is bent, causing damage to the equipment

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