Seismic source excitation detection device for tunnel advanced geological forecast

Abstract

The utility model provides a seismic source excitation detection device for tunnel advanced geological forecast, which relates to the technical field of seismic source excitation detection and comprises an electronic detonator controller, the electronic detonator controller is in signal connection with a control circuit, and a first diode and a first resistor R1 are arranged in the control circuit. A capacitor is fixedly installed in the control circuit, and the control circuit is connected with an excitation circuit in parallel. The utility model has the advantages that a group of excitation signal detection circuits are additionally arranged in the control circuit excited by the seismic source in parallel, the energy generated when the control circuit works is utilized to detect the working condition of the control circuit at the excitation of the seismic source, and the excitation time is recorded according to the level information in the detection process; when time is recorded, data acquisition is carried out on detection information of seismic source excitation, so that detection personnel can accurately know the time of seismic source excitation and detection data of excitation signals, and can timely know the situation of seismic source excitation.

Description

Technical Field

[0001] The utility model relates to the technical field of earthquake source excitation detection, in particular to an earthquake source excitation detection device used for advanced geological prediction of tunnels. Background Art

[0002] With the development of society, various new tunnels have sprung up all over the country. However, it is impossible to accurately obtain the engineering geology and hydrogeology within the tunnel body during the survey and design stage. Therefore, during the tunnel construction process, faults, broken zones, weak strata, karst and other unfavorable geological conditions are often encountered. If these unfavorable geological bodies cannot be accurately predicted during tunnel construction and excavation, there will not only be potential dangers such as landslides, sudden water and mud, but also seriously affect the progress of tunnel construction. Therefore, timely and accurate advance prediction of unfavorable geological bodies that may be encountered during tunnel construction can take effective measures for protection, greatly reduce engineering costs, ensure construction safety and eliminate engineering safety hazards.

[0003] However, the existing seismic source excitation device used in tunnel advanced geological prediction is not convenient for accurately knowing the excitation time, which is not conducive to precise control of the seismic source excitation device. Utility Model Content

[0004] Therefore, the purpose of the utility model is to propose a source excitation detection device for advanced geological prediction of tunnels, so as to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a source excitation detection device for tunnel advanced geological prediction, including an electronic detonator controller, the electronic detonator controller signal is connected to a control circuit, a diode No. 1 and a first resistor R1 are arranged inside the control circuit, a capacitor is fixedly installed inside the control circuit, an excitation circuit is connected in parallel to the control circuit, a diode No. 2 and a second resistor R2 are arranged inside the excitation circuit, a host excitation signal detection circuit is arranged inside the excitation circuit, the host excitation signal detection circuit is signal-connected to a data acquisition unit, and a timing module is arranged inside the data acquisition unit.

[0006] Preferably, any of the above schemes is that the electronic detonator controller is located at the positive end of diode No. 1, the negative end of diode No. 1 is electrically connected to a first resistor R1, one end of the first resistor R1 is electrically connected to a capacitor, and one end of the capacitor is electrically connected to the electronic detonator controller.

[0007] Preferably, any of the above schemes is that the excitation circuit is connected in parallel to both ends of the capacitor, and the excitation circuit and the control circuit are connected in parallel.

[0008] Preferably, any of the above schemes is that the second resistor R2 is electrically connected to one end of the capacitor, the host excitation signal detection circuit is electrically connected to the other end of the capacitor, the host excitation signal detection circuit is electrically connected to the negative end of the second diode, and the second resistor R2 is electrically connected to the positive end of the second diode.

[0009] The above technical solution is adopted: a group of parallel circuits is added to the detonator parallel circuit led out from the electronic detonator controller and connected to the charging and discharging circuit. During the charging process of the electronic detonator, the left side of the circuit is turned on and the capacitor C is charged. After the electronic detonator is excited, the left side of the circuit is disconnected from the power supply and the right side of the circuit is turned on. The host excitation signal detection circuit receives a high-level signal.

[0010] Preferably, any of the above schemes is that the timing module is signal-connected to a time display module, a wireless communication module is disposed inside the data acquisition unit, and the timing module is signal-connected to a host excitation signal detection circuit.

[0011] Using the above technical solution: the timing module records and displays the time according to the high-level signal received by the host excitation signal detection circuit, and transmits the recorded time to the data acquisition unit. At the same time, the data acquisition unit collects the detection information, and the time information and the collected detection information can be wirelessly transmitted to the remote control center through the wireless communication module.

[0012] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0013] 1. Add a set of excitation signal detection circuits in parallel in the control circuit of the source excitation. Use the energy generated by the control circuit when it is working to detect the working condition of the control circuit during the source excitation, and record the excitation time according to the level information in the detection process. While recording the time, collect data on the detection information of the source excitation, so that the detection personnel can accurately know the time of the source excitation and the detection data of the excitation signal, so that the detection personnel can timely understand the situation of the source excitation and make timely processing, thereby improving the accuracy of the detection.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 A circuit structure diagram according to an embodiment of the utility model;

[0017] Figure 2This is a diagram showing the distribution of electrical components according to an embodiment of the present utility model; DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0019] like Figure 1-2 As shown, a source excitation detection device for tunnel advanced geological prediction according to an embodiment of the utility model includes an electronic detonator controller, the electronic detonator controller signal is connected to a control circuit, a diode No. 1 and a first resistor R1 are arranged inside the control circuit, a capacitor is fixedly installed inside the control circuit, an excitation circuit is connected in parallel with the control circuit, a diode No. 2 and a second resistor R2 are arranged inside the excitation circuit, a host excitation signal detection circuit is arranged inside the excitation circuit, the host excitation signal detection circuit signal is connected to a data acquisition unit, and a timing module is arranged inside the data acquisition unit.

[0020] Preferably, any of the above schemes is that the electronic detonator controller is located at the positive end of diode No. 1, the negative end of diode No. 1 is electrically connected to the first resistor R1, one end of the first resistor R1 is electrically connected to the capacitor, and one end of the capacitor is electrically connected to the electronic detonator controller.

[0021] Preferably, any of the above schemes is that the excitation circuit is connected in parallel to both ends of the capacitor, and the excitation circuit and the control circuit are connected in parallel.

[0022] Preferably, any of the above schemes is that the second resistor R2 is electrically connected to one end of the capacitor, the host excitation signal detection circuit is electrically connected to the other end of the capacitor, the host excitation signal detection circuit is electrically connected to the negative end of the second diode, and the second resistor R2 is electrically connected to the positive end of the second diode.

[0023] The above technical solution is adopted: a group of parallel circuits is added to the detonator parallel circuit led out from the electronic detonator controller and connected to the charging and discharging circuit. During the charging process of the electronic detonator, the left side of the circuit is turned on and the capacitor C is charged. After the electronic detonator is excited, the left side of the circuit is disconnected from the power supply and the right side of the circuit is turned on. The host excitation signal detection circuit receives a high-level signal.

[0024] Preferably, any of the above schemes is that the timing module is signal-connected to the time display module, a wireless communication module is provided inside the data acquisition unit, and the timing module is signal-connected to the host excitation signal detection circuit.

[0025] Using the above technical solution: the timing module records and displays the time according to the high-level signal received by the host excitation signal detection circuit, and transmits the recorded time to the data acquisition unit. At the same time, the data acquisition unit collects the detection information, and the time information and the collected detection information can be wirelessly transmitted to the remote control center through the wireless communication module.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. Add a set of excitation signal detection circuits in parallel in the control circuit of the source excitation. Use the energy generated by the control circuit when it is working to detect the working condition of the control circuit during the source excitation, and record the excitation time according to the level information in the detection process. While recording the time, collect data on the detection information of the source excitation, so that the detection personnel can accurately know the time of the source excitation and the detection data of the excitation signal, so that the detection personnel can timely understand the situation of the source excitation and make timely processing, thereby improving the accuracy of the detection.

Claims

1. A seismic source excitation detection device for advanced tunnel geological prediction, characterized in that: It includes an electronic detonator controller, the electronic detonator controller signal is connected to a control circuit, a diode No. 1 and a first resistor R1 are arranged inside the control circuit, a capacitor is fixedly installed inside the control circuit, an excitation circuit is connected in parallel to the control circuit, a diode No. 2 and a second resistor R2 are arranged inside the excitation circuit, a host excitation signal detection circuit is arranged inside the excitation circuit, the host excitation signal detection circuit is signal-connected to a data acquisition unit, and a timing module is arranged inside the data acquisition unit.

2. A seismic source excitation detection device for advanced tunnel geological prediction according to claim 1, characterized in that: The electronic detonator controller is located at the positive end of diode No. 1, the negative end of diode No. 1 is electrically connected to a first resistor R1, one end of the first resistor R1 is electrically connected to a capacitor, and one end of the capacitor is electrically connected to the electronic detonator controller.

3. A seismic source excitation detection device for advanced tunnel geological prediction according to claim 2, characterized in that: The excitation circuit is connected in parallel to both ends of the capacitor, and the excitation circuit and the control circuit are connected in parallel.

4. A seismic source excitation detection device for advanced tunnel geological prediction as claimed in claim 3, characterized in that: The second resistor R2 is electrically connected to one end of the capacitor, the host excitation signal detection circuit is electrically connected to the other end of the capacitor, the host excitation signal detection circuit is electrically connected to the negative end of the second diode, and the second resistor R2 is electrically connected to the positive end of the second diode.

5. A seismic source excitation detection device for advanced tunnel geological prediction as claimed in claim 4, characterized in that: The timing module is signal-connected to a time display module, a wireless communication module is disposed inside the data acquisition unit, and the timing module is signal-connected to a host excitation signal detection circuit.

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