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Down-hole all-directional tidal observation system

An observation system and all-round technology, applied in signal transmission system, measuring device, measuring heat, etc., can solve problems such as uneven distribution of caves, high cost of caves, unreasonable layout, etc.

Active Publication Date: 2008-06-18
INST OF EARTHQUAKE CHINA EARTHQUAKE ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the uneven distribution of caves, quite a few areas to be monitored have no mountains, or there are mountains but the cost of digging caves is expensive, and it is not possible to dig caves
A blank area for earthquake precursor monitoring is formed, resulting in an unreasonable layout

Method used

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  • Down-hole all-directional tidal observation system
  • Down-hole all-directional tidal observation system
  • Down-hole all-directional tidal observation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] 1. General layout

[0072] As shown in Figure 1 and 2, connect the steel cable to the lifting hole (1), and lift the instrument body (E). At this time, the support column (4) is in a contracted state, and the instrument body (E) can be slowly protected towards the borehole. Place in the casing (D) and the transmission cable (C) at the same time. When the instrument body (E) is placed at the bottom of the borehole, the tapered positioning hole (14) of the instrument body (E) and the solid Connect the ball head (15) and support the instrument body (E), the steel cable is in a relaxed state, and the support column (4) also naturally expands, and the instrument body (E) is tightly connected to the borehole sheath The wall of the tube (D) is coupled.

[0073] Turn on the power of the system, start the lock pendulum mechanism, and loosen the pendulum (moving pole plate) of the two vertical pendulum inclinometers to make them in a free movement state. After waiting for a period of...

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Abstract

The invention discloses an omni-directional tide observation system under the well, which relates to a tide observation system. In the invention, a system mainframe box (B) on the ground (A) is connected with an instrument body (E) which is arranged in a protecting pipe (D) of a drilling well through the transmission cable (C). The structure of the interior of instrument body (E) comprises a hoisting hole (1), a pressing spring (3), a supporting pole (4), a location device (5), a ball head joint (6), a circuit unit, a gravimeter (9), a clinometer (11), a primary leveling device (12) and a precise leveling device (13), which are connected in turn from top to bottom. The invention integrates the gravity instrument with the clinometers, which is put under the well; the gravity solid tide in the upright direction and the horizontal solid tide in two directions can be observed synchronously at the same time and place; the invention provides reliable, precise and continuous observation data; the invention can also be used in a general cave with the qualification of a triangle base.

Description

Technical field [0001] The invention relates to a tide observation system, in particular to a comprehensive observation system of underground gravity and inclined solid tide. Background technique [0002] In the study of planetary tides, in order to measure the component of tidal force at a given point, three instruments must be installed along the three axes of the local reference system. A gravimeter must be installed in the direction perpendicular to the zenith to measure tidal force The vertical component is the gravitational solid tide; inclinometers are installed in two horizontal directions in the horizontal plane to measure the north-south and east-west components of the tidal force, namely the oblique solid tide. [0003] At present, most of the three components of the earth tide are observed at home and abroad with a gravimeter and an inclinometer, so that the vertical component of the tidal force is observed more or less at a given point but the horizontal component of...

Claims

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Application Information

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IPC IPC(8): G01V1/40G01V1/52G01V1/20G01V1/38G01D5/24G01K7/20G08C17/02
Inventor 李家明姚植桂温兴卫梅建昌朱仲芬张卫华刘子维张勤耕
Owner INST OF EARTHQUAKE CHINA EARTHQUAKE ADMINISTRATION
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