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Electrical method advanced geological forecast transmitting system

A technology of advanced geological prediction and launch system, applied in the field of electrical advanced geological prediction, which can solve problems such as water inrush disasters, machine damage, and project delays

Pending Publication Date: 2021-11-26
中国电波传播研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In shield construction, when encountering water-bearing structures such as broken zones, karst caves, and underground rivers, water inrush disasters often occur, resulting in machine damage, project delays, and even serious accidents such as casualties

Method used

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  • Electrical method advanced geological forecast transmitting system
  • Electrical method advanced geological forecast transmitting system

Examples

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Embodiment 1

[0018] Example 1, such as figure 1 As shown, the present embodiment discloses an electric advanced geological prediction transmitting system, which includes a transmitting electrode 3 and a measuring electrode 4 installed on the shield machine cutter head 1 and / or shield 2, and the shield or the shield and the The cutter head acts as a shielding electrode, and the return electrode 5 is in good contact with the ground. The transmitting electrode, measuring electrode, shielding electrode and return electrode are electrically connected to the transmitting circuit 6 through wires, and the transmitting circuit communicates with the computer 7 . During the working process of the shield machine, the transmitting circuit receives instructions from the computer, feeds low-frequency / DC current to the shielding electrode and the measuring electrode, and the current returns to the return electrode through the ground.

[0019] In this embodiment, the measuring electrodes are electrically i...

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Abstract

The invention discloses an electrical method advanced geological forecast transmitting system which comprises an emission electrode and a measuring electrode which are installed on a cutter head or a shield of a shield tunneling machine or on the cutter head and the shield, the shield or the shield and the cutter head serves as a shielding electrode, and a backflow electrode is grounded. The emission electrode, the measuring electrode, the shielding electrode and the backflow electrode are electrically connected with an emission circuit through wires, and the emission circuit communicates with a computer. The electrical method advanced geological forecast transmitting system can provide emission signals with different frequencies for the electrical method advanced geological forecast system. The transmitting system can be controlled by the computer to generate single-frequency sine wave signals, multi-frequency sine wave signals or arbitrary waveform signals with different frequencies and different amplitudes, and a user can set the frequency suitable for stratum response according to needs.

Description

technical field [0001] The invention belongs to the technical field of electrical advanced geological prediction, in particular to an electrical advanced geological prediction transmitting system in the field. Background technique [0002] With the development of large-scale infrastructure projects such as domestic railways, highways and water conservancy projects and the improvement of the ability of shield machine manufacturers to independently develop shield machines, the proportion of shield tunnel construction in tunnel construction is increasing. In shield construction, when encountering water-bearing structures such as broken zones, karst caves, and underground rivers, water inrush disasters often occur, resulting in machine damage, project delays, and even serious accidents such as casualties. In order to avoid the occurrence of the above-mentioned accidents, the method of advanced geological forecast is usually used to detect the geological conditions in front of th...

Claims

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Application Information

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IPC IPC(8): G01V3/00
CPCG01V3/00
Inventor 杨艳军郑俊祥平之泉
Owner 中国电波传播研究所
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