CN220225501U

CN220225501U - Mud shielding curtain cage

Info

Publication number: CN220225501U
Application number: CN202321717599.1U
Authority: CN
Inventors: 张大勇; 孙景军; 张向锋; 于雷; 刘晨阳; 王国军
Original assignee: Global Ocean Engineering Tianjin Co ltd; Dalian University of Technology
Current assignee: Global Ocean Engineering Tianjin Co ltd; Dalian University of Technology
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-12-22
Anticipated expiration: 2033-07-03

Abstract

The utility model provides a mud shielding curtain cage which is used for playing a mud shielding role in ditching a submarine pipeline and belongs to the technical field of submarine pipeline construction. The mud shielding curtain comprises a square suspension frame and mud shielding cloth suspended downwards around the suspension frame; the suspension frame is of a square frame structure formed by connecting a plurality of steel pipes through connecting flanges, and the size of the suspension frame is adjusted by adjusting the number of the steel pipes on each side; the bottom of the mud shielding cloth is provided with a counterweight, so that the mud shielding cloth is ensured to be unfolded vertically downwards. When the jet type ditcher is used, the jet type ditcher can be covered around the jet type ditcher, floats on the water surface, is connected to a ditching operation ship through a mooring rope and advances together with ditching operation, so that suspended matters generated during ditching are prevented from diffusing around. The utility model can block suspended matters generated during ditching operation in real time and improve the effective rate of the silt barrier.

Description

Mud shielding curtain cage

Technical Field

The utility model relates to a mud shielding curtain cage, in particular to a curtain cage structure which plays a role in shielding mud when a submarine pipeline digs a ditch, and belongs to the technical field of submarine pipeline construction.

Background

The silt barrier is a floating barrier commonly used in water areas such as ports, channel dredging, sea-going land making, lakes and the like, so as to control the large-area diffusion of silt and sediment in water. The method avoids the sediment suspension from floating back to the water body and suspending and dispersing again during the engineering period, so as to reduce the negative influence of the sediment suspension on aquatic organisms and the water body environment as much as possible.

When the submarine pipeline is used for ditching, the adopted jet ditcher is used for flushing soil bodies with high-pressure water to form grooves, and the soil bodies are scattered and spread in a large area, so that a mud shielding curtain cage is needed, the rings are blocked around the ditcher during ditching, and suspended matters generated during ditching are blocked, so that the effect of environmental protection is achieved.

Disclosure of Invention

The utility model aims to overcome the defects and provide a mud shielding curtain cage which can be covered around a jet type trencher, floats on the water surface, is connected to a trenching operation ship through a mooring rope and advances together with the trenching operation, so that suspended matters generated during trenching are prevented from diffusing to the periphery.

The purpose of the utility model is realized in the following way:

the utility model provides a mud curtain shielding cage plays the mud effect of hiding when submarine pipeline digs ditch, mud curtain shielding cage includes square suspension frame 1, suspension frame 1 has hung mud cloth 2 downwards all around, and wherein, suspension frame 1 floats on the sea, lies in the mud cloth 2 height-adjustable below the sea. The suspension frame is of a square frame structure formed by connecting a plurality of steel pipes 1.1 through connecting flanges 1.2, and the size of the suspension frame is adjusted by adjusting the number of the steel pipes 1.1 on each side; the bottom of the mud shielding cloth 2 is provided with the counterweight 3, so that the mud shielding cloth 2 is ensured to be unfolded vertically downwards, namely, the counterweight plays a role in stabilizing the cloth curtain, so that the marine environment force can be effectively resisted, and the cloth curtain is ensured to be kept in a vertical state under the sea condition allowing operation.

Further, the bottom of the steel pipe 1.1 is hung with the mud-shielding cloth 2 through hooks.

Further, the mud shielding cloth 2 comprises an outer geotextile 2.1 and an inner geotextile 2.2; the inner side and the outer side of the bottom of the steel pipe 1.1 are respectively provided with an outer side hook 1.3 and an inner side hook 1.4 which are respectively used for hanging an outer geotechnical cloth 2.1 and an inner geotechnical cloth 2.2.

Further, the bottom of the outer geotextile 2.1 is provided with a counterweight 3 with a strip or plate structure.

Further, the side surfaces of the adjacent outer geotextiles 2.1 are connected through hooks; the side surfaces of the adjacent inner geotechnical cloth 2.2 are connected through hooks.

Furthermore, the two ends of each steel pipe 1.1 are provided with connecting flanges 1.2, and adjacent steel pipes 1.2 are connected through the connecting flanges 1.2 to form a frame structure.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model can prevent suspended matters generated during ditching operation in real time by suspending geotextile on the walking type mud shielding curtain cage, improves the effective rate of the mud barrier and plays a positive role in environmental protection.

Drawings

FIG. 1 is a schematic view of a mud-shielding cage (8 m height) according to the present utility model.

Fig. 2 is a top view of fig. 1 of the present utility model.

Fig. 3 is an explosion effect diagram of fig. 1 according to the present utility model.

FIG. 4 is a schematic view of a mud-shielding cage (4 m height) according to the present utility model.

Fig. 5 is a schematic view of an application state of a mud-shielding cage according to the present utility model.

Fig. 6 is a top view of fig. 5 in accordance with the present utility model.

In the figure:

101 a construction ship, 102 a trencher and 103 a mud shielding curtain cage;

1 a suspension frame, 2 mud shielding cloth and 3 a counterweight;

1.1 steel pipes, 1.2 connecting flanges, 1.3 outer side hooks and 1.4 inner side hooks;

2.1 outer geotextile and 2.2 inner geotextile.

Detailed Description

The utility model is further illustrated below with reference to specific examples.

Referring to fig. 1-4, the mud shielding curtain cage comprises a suspension frame 1 floating on the sea surface, wherein the suspension frame 1 is a square frame structure formed by connecting eight steel pipes 1.1 through connecting flanges 1.2, the connecting flanges 1.2 are arranged at two ends of each steel pipe 1.1, the steel pipes 1.1 are connected through the connecting flanges 1.2 to form a frame structure, namely the steel pipes 1.1 forming the frame structure are connected through the connecting flanges 1.2, so that the field is convenient to manufacture and transport in sections and then assemble on site, and meanwhile, the later expansion is convenient, and the number of the steel pipes 1.1 can be prolonged in the length and width directions at will so as to be suitable for working equipment such as ditchers with different sizes.

Meanwhile, the mud shielding cloth 2 comprises an outer geotextile 2.1 and an inner geotextile 2.2; two rows of hooks, namely an outer hook 1.3 and an inner hook 1.4, are respectively arranged at the inner side and the outer side of the bottom of the steel pipe 1.1 at a certain interval and are respectively used for being hung on an outer geotechnical cloth 2.1 and an inner geotechnical cloth 2.2, and the application of double-layer geotechnical cloth greatly improves the effective rate of a silt barrier, ensures that the barrier rate reaches more than 95%, and can be adjusted in height so as to adapt to the water depth in a certain range; meanwhile, the bottoms of the outer geotextile 2.1 and the inner geotextile 2.2 are provided with the counter weights 3 of the towing point plate structures, so that the vertical downward expansion of the mud shielding cloth 2 is ensured.

Referring to fig. 5 and 6, in use, the mud-blocking cage 103 is connected to the trenching construction ship 101 through a mooring line, the trencher 102 towed by the construction ship 101 is positioned in the middle of the mud-blocking cage 103, the trencher 102 and the mud-blocking cage 103 move forward along with the construction ship 101 to perform trenching operation, and suspended matters generated in the trenching operation process cannot diffuse to the periphery due to the existence of the mud-blocking cage 103, so that the effective rate of a mud barrier is improved.

The examples described above represent only embodiments of the utility model and are not to be understood as limiting the scope of the patent of the utility model, it being pointed out that several variants and modifications may be made by those skilled in the art without departing from the concept of the utility model, which fall within the scope of protection of the utility model.

Claims

1. The mud shielding curtain cage plays a role in shielding mud when a submarine pipeline digs a ditch, and is characterized by comprising a square suspension frame (1) and mud shielding cloth (2) suspended downwards around the suspension frame (1), wherein the suspension frame (1) floats on the sea surface, and the height of the mud shielding cloth (2) below the sea surface is adjustable; the suspension frame is of a square frame structure formed by connecting a plurality of steel pipes (1.1) through connecting flanges (1.2), and the size of the suspension frame is adjusted by adjusting the number of the steel pipes (1.1) at each side; the bottom of the mud shielding cloth (2) is provided with a counterweight (3) to ensure that the mud shielding cloth (2) is unfolded vertically downwards; when the device is used, the device is covered around the jet type trencher, floats on the water surface, moves together with the trenching operation, and blocks suspended matters generated during the trenching operation in real time so as to avoid the suspended matters from diffusing to the periphery.

2. A mud shade cage according to claim 1, characterized in that the bottom of the steel tube (1.1) is suspended by hooks from a mud shade cloth (2).

3. A mud shade cage according to claim 1, wherein the mud shade cloth (2) comprises an outer geotextile (2.1) and an inner geotextile (2.2); the inner side and the outer side of the bottom of the steel pipe (1.1) are respectively provided with an outer side hook (1.3) and an inner side hook (1.4) which are respectively used for hanging an outer geotechnical cloth (2.1) and an inner geotechnical cloth (2.2).

4. A mud-masking curtain cage as claimed in claim 3, characterized in that the bottom of the outer geotextile (2.1) is provided with a counterweight (3) of strip-like or plate-like structure.

5. A mud-masking curtain cage as claimed in claim 3, characterized in that the sides of adjacent outer geotextiles (2.1) are connected by hooks; the side surfaces of the adjacent inner geotechnical cloth (2.2) are connected through hooks.