Offshore soil texture seabed jetting disturbance device

Abstract

The invention discloses an offshore soil texture seabed jetting disturbance device. A shallow layer jetting vehicle and a deep layer jetting hammer are included. A front shaft barrel and a rear shaftbarrel of the shallow layer jetting vehicle are hollow inside, and the bottom is provided with a plurality of rows of jetting holes. The two ends of each shaft barrel are provided with a rotation shaft, and walking wheels are arranged on the rotation shafts. The upper portions of the front shaft barrel and the rear shaft barrel are fixedly connected with a dragging bucket, balance weight blocks can be arranged in the dragging bucket, and the rotation shaft of the front shaft barrel is provided with a bracket capable of rotating around the rotation shaft. After a first water injection pipe is installed on the front shaft barrel and the rear shaft barrel based on a first water inlet hole, high-pressure water flow can be sprayed out of the multiple rows of jetting holes after entering the shaft barrels, and a seabed soil body is scoured. The interior of the deep layer jetting hammer is hollow, and a plurality of jetting holes are evenly arranged. A second water injection pipe is connected, the high-pressure water flow can be sprayed out of the multiple jetting holes after entering the deep layer jetting hammer based on the second water injection pipe, and the seabed soil body is scoured. According to the offshore soil texture seabed jetting disturbance device, through combined application of the shallow layer jetting vehicle and the deep layer jetting hammer, the seabed soil bodyin the large depth range can be disturbed and damaged, and later penetration construction of a torpedo anchor or a barrel-shaped foundation is facilitated.

Description

technical field [0001] The invention relates to the technical field of construction of deep-water cage mooring foundations, in particular to a group of offshore soil seabed jet disturbance devices. Background technique [0002] At present, my country's marine aquaculture has the problem of over-exploitation of near-shore areas and under-utilization of deep-water areas. Mariculture areas are mainly concentrated in the shallow inner bays within the 15-meter isobath, which is too saturated, and the utilization rate of sea areas with a water depth of more than 20 meters is less than 1%, which is far below the level of developed countries such as the United States, Japan, and Norway. Therefore, the development of offshore deep-water cage culture has become a long-term strategy for my country to ensure food supply and safety, and it has become an inevitable choice for expanding food production space. [0003] The anchoring system is the foundation of the cage in the water, and it...

AI Technical Summary

Problems solved by technology

However, if the torpedo anchor is used for the mooring foundation of the cage in the water depth of 20-40m in my country, there are the following problems: ①Compared with the deep sea floating platform, the water depth of the cage is relatively shallow, and the potential energy of the torpedo anchor is limited when it falls freely. It is difficult to penetrate into the deep seabed; ②When the torpedo anchor is used as the mooring foundation of the cage, its volume and weight need to be greatly reduced (otherwise the cost is too high to be popularized), and the reduction of the weight of the torpedo anchor will also make it difficult to Penetrate into the deep seabed; ③The seabed in some sea areas has a soil layer structure of "hard at the top and soft at the bottom", that is, the strength of the surface layer of the seabed is relatively high, while the lower part has silty soil with relatively low strength , the torpedo anchor needs to be penetrated into the deeper soil layer below to be safe, but the seabed soil with relatively high strength in the shallow layer prevents the penetration construction of the torpedo anchor

[0010] If the barrel foundation is used for the mooring foundation of the net cage in the water depth of 20-40m in my country, there are the following problems: ①The water depth of the net cage is relatively shallow, and the pressure difference between the inside and outside of the barrel foundation is limited during construction, so it is difficult to penetrate the barrel foundation. ②The seabed in some sea areas has a soil layer structure of "hard at the top and soft at the bottom", that is, the strength of the surface layer of the seabed is relatively high, while the lower part has silt soil with relatively low strength. The relatively high-strength seabed soil in the upper part prevents the penetration construction of the barrel foundation

Images