Probe penetration implement for detecting and monitoring sea bed soil body

Abstract

The invention relates to seabed soil mass detecting monitoring feeler lever penetration implement. The pressing penetrating institution bearing platform is fixed on the base of the penetration implement. The oil cylinder fixed on the bearing platform is connected to feeler lever interval lock under the baring platform. Both of them have feeler lever through hole. The chuck of the lock is held at the flute of the feeler lever joint. Oil-way is connected to control oil cylinder oil hydraulic motor. Its circuit is connected to console. The implement can use sea floor pressing penetrating force to press and penetrate feeler lever into seabed. The soil layer around the anchorage bar is destroyed little. The ocean flow side force resistance and pulling resistance are strong. It not only can reduce interference to soil mass, but also can prevent slimness type feeler lever from bending and destroying when it is penetrating into seabed soil mass.

Description

technical field [0001] The invention belongs to the technical field of marine detection, and relates to a device capable of pressing and penetrating a seabed soil multifunctional detection and monitoring probe rod into the seabed soil layer, specifically a device suitable for shallow sandy sea areas, especially Seabed soil exploration and monitoring probe penetration equipment in hard sandy bottom sea area. Background technique [0002] In-situ testing of physical, chemical and mechanical parameters of seabed soil, and long-term monitoring of formation pore water pressure and other parameters provide necessary parameter indicators for ocean engineering site selection, design and construction. However, it is a prerequisite for on-site observation to insert the probe rod of the seabed detection or monitoring system into a certain depth of seabed soil according to the predetermined requirements, and to reduce the interference to the soil as much as possible. However, in marine...

AI Technical Summary

Problems solved by technology

However, in marine actual measurement, it is often required that the probe rod has a considerable length, and some slender probe rods with a length-to-diameter ratio of nearly 100 and a length of up to 6 meters, especially in shallow sandy waters on the continental shelf of our country, especially commonly known as In the hard sand bottom sea area of ​​"iron sand", the probe rod is easily bent or even damaged during the process of penetrating into the seabed soil

In the prior art, using the free fall method to penetrate the seabed soil layer by its own gravity is only suitable for continental slopes or semi-deep sea soft seabeds, and the impact of the vibration penetrating method on the detection sensor is difficult to overcome , and these two penetration methods have problems such as uncontrollable insertion depth and large disturbance to the soil

For underwater operations, the static penetration sounding machine used on land or in mines cannot meet the technical requirements of seabed operations: for example, the Chinese patent No. 97206813.9 "static sounding sounding machine" announced on September 23, 1998 is land-use equipment. If working in the ocean, the motor and power transmission parts are exposed, and the problem of anti-corrosion and anti-rust cannot be solved. The pressing and pulling of the probe rod is realized by manually replacing the pressure and pulling head, which is not suitable for underwater operations, and the length of the probe rod is limited. Due to the limitation of the height of the frame and the lead screw, it is not suitable for the penetration of the slender probe rod

The Chinese patent No. 93226701.7 "deep static penetrating machine" announced on September 7, 1994 adopts the method of clamping the probe rod by one-way blocks. When the probe rod is recovered, the position of the blocks needs to be changed manually. It is extremely inconvenient to work in the ground, because there is no device to overcome the soil reaction force generated by the downward pressure of the probe, so it is not suitable for underwater work with ocean currents and buoyancy

In the Chinese patent No. 200310105528.7 published on March 16, 2005, "a spiral underwater positioning device", the transmission shaft mainly transmits torque to the spiral anchor body through a long key, and the internal thread on the inner wall of the spiral guide sleeve and the spiral anchor body When the upper external thread cooperates with the rotation to press into the helical anchor body, the helical blade of the lower part of the helical anchor body also rotates, so the soil layer in the rotation space of the helical blade is twisted loose, which makes the helical anchor body screwed into the soil layer to resist the lateral force. The ability and pull-out resistance are greatly weakened, so as stated in the patent specification, this screw underwater positioning device is only suitable for the positioning of small and light submersibles for underwater operations.

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