RU111690U1 - BOTTOM BUILDING STATION OF GEOPHYSICAL MEASUREMENTS - Google Patents

Abstract

 A bottom-buoy station for geophysical measurements, containing a deep-sea equipment carrier mounted on the seabed, consisting of a sealed spherical container with seismic sensors located inside it, an on-board computing unit, an orientation system unit, a power source and a low-frequency hydrophone located outside the sealed spherical container, a Doppler current meter characterized in that the sealed spherical container with measuring equipment is installed in the frame, to otorrhea also attached Doppler flows frame nylon buoy line is connected through a ballast weight with hydrographic displacer and the cable exiting the hull, and through the ballast weight associated with radiovehoy surface.

Description

The proposed utility model relates to marine engineering, and is intended to monitor the seismic process in the study area, to detect medium-term and short-term precursors of strong earthquakes.

A self-contained seismic-acoustic hydrophysical station comprising a deep-sea equipment carrier (HA) installed on the seabed, the HA comprising an on-board computing unit (BWI) located in a sealed spherical container, an orientation system unit, a power supply, a three-component seismic sensor, and also installed outside the sealed a container low-frequency hydrophone, a receiver for sonar communication, a device for setting up and removing NA from the ground, means for searching for a pop-up NA, are made a flashing beacon and an active radar reflector. The station provides the ability to quickly transmit information using conventional and pop-up beacons (1).

The well-known seismic-acoustic hydrophysical station is not designed to detect turbid flows, bottom landslides and the phenomena that precede them (creeps and local microearthquakes on the slopes of the seabed), and to detect tsunami waves in the open sea.

The proposed device is able to solve all the problems mentioned.

The technical result is achieved by the fact that in the bottom-buoy station of geophysical measurements (DBS), a sturdy case with measuring equipment is installed in a frame to which a Doppler current meter is attached, the frame is mechanically connected through a ballast weight with a hydrographic buoy, and the cable leaving the sturdy case , also through a ballast weight connected to a radio pole on the surface.

Implementation of a utility model.

In the drawing - figure 1 shows the bottom-buoy station of geophysical measurements at the bottom of the sea, it contains: 1 - a robust housing with integrated seismic sensors and an electronics unit; 2 - heavy support frame, providing reliable contact with the bottom soil; 3 - Doppler current meter; 4 - hydrophone; 5 - kapron buoyrep; 6 - signal cable; 7, 8 - ballast weights; 9 - radio pole; 10 - hydrographic buoy; 11 - fishing end.

The installation of the bottom buoy station can be made from any vessel (including a small tonnage) equipped with a trawl winch and a crane beam. First, with the help of a crane beam and small turret, a radio pole (9) is launched to the sea surface; and unwinding the signal cable (7) as the radio pole moves away from the ship. After a sufficient amount of cable is released overboard (the length of the unwinding is equal to the depth of the sea plus 10% of the depth), a ballast weight is attached to the cable (8). The load goes down to the bottom of the cable, the end of which is fixed to the support frame (2) and inserted into a strong housing (1). When the load lies on the bottom, the supporting frame with a strong hull (1), a hydrophone (4) and a Doppler current meter (3) with a winch by the nylon buoyer rises above the plane, is taken overboard and goes down to the bottom. After the release of kapron buirp (5), the ballast weight (6) is attached to it and the descent continues to the bottom. Then, a hydrographic buoy (10) with a fishing end (11) made of a floating polypropylene halyard is attached to the end of the buoyrp. The installation of the DBL is completed.

At the bottom, the station registers signals from seismic sensors, a hydrophone, and a Doppler current meter, preprocesses them, archives them, and transmits the received information to the shore or to the side of the supply vessel.

After completion of the work, the DBL is raised. It is produced in reverse order. The hydrographic buoy (10) rises aboard the vessel at the fishing end (11); the kapron buoyrep is selected (5); in the process of sampling, the ballast weight (6) detaches from it, the support frame (2) rises with a strong body (1), a current meter (3) and a hydrophone (4); then a signal cable (7) with a ballast weight (8) and a radio pole (9) is selected. The DBS survey process is now complete.

The technical result (the detection of earthquakes in a wide range of magnitudes, including weak and microearthquakes, tsunami waves and turbid currents) is provided by the prompt transfer of data from seismic sensors, a low-frequency hydrophone and a Doppler current meter from the seabed to a data collection and processing point located on the shore or on the shore providing vessel.

Sources of information used in the preparation of the application:

1. Russian patent for utility model No. 61895 class. G01V 1/38

Claims (1)

A bottom-buoy station of geophysical measurements containing a deep-sea equipment carrier mounted on the seabed consisting of a sealed spherical container with seismic sensors located inside it, an on-board computing unit, an orientation system unit, a power source and a low-frequency hydrophone, a Doppler current meter placed outside the sealed spherical container characterized in that the sealed spherical container with measuring equipment is installed in the frame, to otorrhea also attached Doppler flows frame nylon buoy line is connected through a ballast weight with hydrographic displacer and the cable exiting the hull, and through the ballast weight associated with radiovehoy surface.