High-voltage pulse water jet controllable active seismic source advanced detection device and use method thereof
阅读说明：本技术 高压脉冲水射流可控主动震源超前探测装置及使用方法 (High-voltage pulse water jet controllable active seismic source advanced detection device and use method thereof ) 是由 黄满 焦玉勇 谭飞 严成增 于 2019-08-30 设计创作，主要内容包括：本发明提供一种高压脉冲水射流可控主动震源超前探测装置及使用方法,探测装置包括水箱、供水泵、增压器、伺服电机、收敛型喷嘴、接收传感器和地震波数据采集仪,供水泵分别连接水箱和增压器,增压器连接收敛型喷嘴,伺服电机的输出轴连接挡块；接收传感器连接地震波数据采集仪,供水泵将水箱里的水泵入增压器,增压器进行加压形成高压水射流,伺服电机驱动挡块转动,挡块截断形成高压脉冲射流束,高压脉冲射流束冲击工作面产生激震地震波,接收传感器反射波,地震波数据采集仪实时采集反射波并传送至智能终端,智能终端分析反射波并判断不良地质体的特征。本发明的有益效果：原理科学、安全高效、节能环保,具有良好的应用前景。(The invention provides a high-pressure pulse water jet controllable active seismic source advanced detection device and a use method thereof, wherein the detection device comprises a water tank, a water supply pump, a supercharger, a servo motor, a convergent nozzle, a receiving sensor and a seismic wave data acquisition instrument, wherein the water supply pump is respectively connected with the water tank and the supercharger, the supercharger is connected with the convergent nozzle, and an output shaft of the servo motor is connected with a stop block; the receiving sensor is connected with a seismic wave data acquisition instrument, a water supply pump pumps water in a water tank into a supercharger, the supercharger pressurizes to form high-pressure water jet, a servo motor drives a stop block to rotate, the stop block cuts off to form high-pressure pulse jet beams, the high-pressure pulse jet beams impact a working surface to generate shock seismic waves, reflected waves of the sensor are received, the seismic wave data acquisition instrument acquires the reflected waves in real time and transmits the reflected waves to an intelligent terminal, and the intelligent terminal analyzes the reflected waves and judges the characteristics of bad geological bodies. The invention has the beneficial effects that: the principle is scientific, safe, efficient, energy-saving and environment-friendly, and has good application prospect.)
1. The high-voltage pulse water jet controllable active seismic source advanced detection device is characterized in that: the earthquake wave data acquisition instrument comprises a water tank, a water supply pump, a supercharger, a servo motor, a convergent nozzle, a receiving sensor and an earthquake wave data acquisition instrument, wherein the water supply pump is respectively connected with the water tank and the supercharger through pipelines; the receiving sensor is connected with the seismic wave data acquisition instrument, the booster, the servo motor and the seismic wave data acquisition instrument are respectively connected with an intelligent terminal, the water supply pump is used for pumping water in the water tank into the booster through the pipeline, the booster is used for pressurizing water flow in the pipeline to form high-pressure water jet, the high-pressure water jet is emitted to a working surface through the convergent nozzle, the servo motor is used for driving the stop block to rotate, the stop block is used for periodically cutting off the high-pressure water jet under the driving of the servo motor so that the high-pressure water jet forms high-pressure pulse jet beams, the high-pressure pulse jet beams impact the working surface to generate shock seismic waves, the receiving sensor is used for receiving reflected waves reflected by the blocking of a bad geological body, and the seismic wave data acquisition instrument is used for acquiring the reflected waves in real time and transmitting the reflected waves to the intelligent terminal, the intelligent terminal is used for controlling the supercharger and the servo motor, analyzing the reflected waves transmitted by the seismic wave data acquisition instrument and judging the characteristics of the poor geologic body.
2. The high-pressure pulsed waterjet controllable active seismic source advanced detection device according to claim 1, characterized in that: and the lower end of the convergent nozzle is provided with a directional device, and the directional device is used for adjusting the direction of the convergent nozzle.
3. The high-pressure pulsed waterjet controllable active seismic source advanced detection device according to claim 1, characterized in that: the intelligent terminal is a computer or a mobile phone.
4. Use method of the high-voltage pulse water jet controllable active seismic source advanced detection device comprising any one of claims 1-3, characterized in that: the method comprises the following steps:
s1, the receiving sensor is tightly attached to a working surface or a side wall surface;
s2, opening the seismic wave data acquisition instrument, and activating the receiving sensor to enable the receiving sensor to be in a detection state;
s3, adjusting the outlet position of the convergent nozzle by using the orienting device to ensure that the outlet of the convergent nozzle is opposite to a shock excitation point;
s4, respectively setting the rotating speed of the servo motor and the pressure of the supercharger through the intelligent terminal;
s5, the water supply pump pumps the water in the water tank into the pressure booster through the pipeline, the pressure booster pressurizes the water flow in the pipeline to a set pressure to form a high-pressure water jet, the high-pressure water jet is emitted from the convergent nozzle, and the high-pressure water jet emitted from the convergent nozzle is periodically cut off by the rotating stop block to form the high-pressure pulse jet beam;
s6, the high-voltage pulse jet beam impacts a working surface, so that shock seismic waves are generated and are transmitted forwards, when the shock seismic waves encounter a poor geologic body, reflected waves are generated on an impedance interface of the poor geologic body by the shock seismic waves, the reflected waves are transmitted to the working surface and are received by the receiving sensor, and the seismic wave data acquisition instrument acquires the reflected waves in real time and transmits the reflected waves to the intelligent terminal;
and S7, the intelligent terminal receives the reflected wave and analyzes the reflected wave, so that the characteristics of the poor geologic body are judged.
Technical Field
The invention relates to the technical field of advanced geological detection of underground engineering, in particular to a high-voltage pulse water jet controllable active seismic source advanced detection device and a using method thereof.
Background
In the construction of underground engineering such as tunnels and underground spaces, geological conditions have obvious influence on the aspects of construction progress, process, safety and the like. When a bad geological section is encountered, geological disasters such as water inrush, mud outburst, collapse and the like are easy to occur, and even major safety accidents such as personal casualties, equipment damage and the like are caused. In order to prevent geological disasters and safety accidents in the underground engineering construction process, the method is an effective way to detect the front part of a working face by utilizing the advanced geological forecasting technology. The geological condition in front of the working face is detected in advance, the bad geological body is found in time, and reasonable treatment measures and safe construction plans are made in advance aiming at the bad geological section. Therefore, the construction risk is reduced, and smooth construction is guaranteed.
The artificial seismic source is an important component of the seismic reflection advanced geological prediction technology. Artificial sources are largely divided into two categories, namely explosive sources and non-explosive sources. Non-explosive seismic sources are further classified into mechanical impact, gas explosion seismic sources, electric energy seismic sources and the like. The explosion energy of the explosive seismic source is mostly consumed to cause the surrounding rock mass to be crushed or permanently deformed, and only part of the energy forms effective seismic interference. For dry loose rock, the effective energy is very low, and a better seismic wave effect can be obtained only in a water-containing plastic medium. Explosive seismic sources have been gradually replaced in recent years by non-explosive seismic sources. The mechanical impact type seismic source uses a mechanical device to impact the ground or a working surface to form a vibration effect. The excited seismic wave has low frequency, generally within 100Hz, low resolution and large energy consumption. The gas explosion focus belongs to a mechanical device, and is characterized by that the high-pressure gas is pressed into a container, and instantaneously released at outlet to produce strong impact and produce vibration effect. The gas explosion seismic source has the characteristics of high frequency and wide frequency band. The electric energy source is an electronic device, and generates an electric arc gasification medium through micro-level discharge to form strong impact. The electric energy seismic source has the characteristics of high seismic wave frequency, small influence on the surrounding environment and the like. The non-explosive seismic source has obvious advantages compared with the explosive seismic source, but for the situation that a complex mechanical structure exists in a narrow space for underground engineering construction, particularly in the space for tunneling by a tunnel boring machine, the problems of overlarge equipment, inconvenience in installation and the like still exist, so that the detection efficiency is low, and normal construction is influenced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a high-pressure pulse water jet controllable active seismic source advanced detection device and a use method thereof, in which a high-pressure pulse jet beam is formed by a convergent nozzle and a mechanical partition device, strong impact is generated on a working surface by using a water hammer effect to form seismic waves, that is, seismic waves are propagated forward by an active seismic source, a seismic wave data acquisition instrument is used to acquire emitted waves reflected by a front unfavorable geologic body, and the reflected waves are analyzed to determine the geological condition in front of the working surface.
The embodiment of the invention provides a high-pressure pulse water jet controllable active seismic source advanced detection device which comprises a water tank, a water supply pump, a supercharger, a servo motor, a convergent nozzle, a receiving sensor and a seismic wave data acquisition instrument, wherein the water supply pump is respectively connected with the water tank and the supercharger through pipelines, the supercharger is connected with the convergent nozzle through a pipeline, the servo motor is positioned above the convergent nozzle, an output shaft of the servo motor is connected with a stop block, and the stop block is positioned right in front of the convergent nozzle; the receiving sensor is connected with the seismic wave data acquisition instrument, the booster, the servo motor and the seismic wave data acquisition instrument are respectively connected with an intelligent terminal, the water supply pump is used for pumping water in the water tank into the booster through the pipeline, the booster is used for pressurizing water flow in the pipeline to form high-pressure water jet, the high-pressure water jet is emitted to a working surface through the convergent nozzle, the servo motor is used for driving the stop block to rotate, the stop block is used for periodically cutting off the high-pressure water jet under the driving of the servo motor so that the high-pressure water jet forms high-pressure pulse jet beams, the high-pressure pulse jet beams impact the working surface to generate shock seismic waves, the receiving sensor is used for receiving reflected waves reflected by the blocking of a bad geological body, and the seismic wave data acquisition instrument is used for acquiring the reflected waves in real time and transmitting the reflected waves to the intelligent terminal, the intelligent terminal is used for controlling the supercharger and the servo motor, analyzing the reflected waves transmitted by the seismic wave data acquisition instrument and judging the characteristics of the poor geologic body.
Furthermore, the lower end of the convergent nozzle is provided with a directional device, and the directional device is used for adjusting the direction of the convergent nozzle.
Furthermore, the intelligent terminal is a computer or a mobile phone.
Further, the use method of the high-voltage pulse water jet controllable active seismic source advanced detection device comprises the following steps:
s1, the receiving sensor is tightly attached to a working surface or a side wall surface;
s2, opening the seismic wave data acquisition instrument, and activating the receiving sensor to enable the receiving sensor to be in a detection state;
s3, adjusting the outlet position of the convergent nozzle by using the orienting device to ensure that the outlet of the convergent nozzle is opposite to a shock excitation point;
s4, respectively setting the rotating speed of the servo motor and the pressure of the supercharger through the intelligent terminal;
s5, the water supply pump pumps the water in the water tank into the pressure booster through the pipeline, the pressure booster pressurizes the water flow in the pipeline to a set pressure to form a high-pressure water jet, the high-pressure water jet is emitted from the convergent nozzle, and the high-pressure water jet emitted from the convergent nozzle is periodically cut off by the rotating stop block to form the high-pressure pulse jet beam;
s6, the high-voltage pulse jet beam impacts a working surface, so that shock seismic waves are generated and are transmitted forwards, when the shock seismic waves encounter a poor geologic body, reflected waves are generated on an impedance interface of the poor geologic body by the shock seismic waves, the reflected waves are transmitted to the working surface and are received by the receiving sensor, and the seismic wave data acquisition instrument acquires the reflected waves in real time and transmits the reflected waves to the intelligent terminal;
and S7, the intelligent terminal receives the reflected wave and analyzes the reflected wave, so that the characteristics of the poor geologic body are judged.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
(1) water is used as a working medium, and the water is wide in source, non-toxic and harmless;
(2) the high-pressure pulse water jet impact is used for generating seismic waves, so that the explosion effect and the dust are avoided, and the method is safe and environment-friendly;
(3) the impact energy and the frequency are controllable, the seismic sources can be quantitatively set and set as required, and the method is economical and economical;
(4) the intensity of the seismic source is controllable, the destructiveness is small, and the influence on the narrow environment of the underground space is small;
(5) the convergent nozzle is connected with the supercharger through a high-pressure pipeline, so that the mobility is good, and the position of a shock excitation point can be conveniently and quickly adjusted;
(6) the jet flow direction is controllable, namely the shock excitation direction is controllable, and the seismic source azimuth is controllable;
(7) a plurality of nozzles can be conveniently expanded and connected to form a shock array;
(8) the device is small in size, is integrated on large-scale equipment such as a drilling trolley, a tunnel boring machine and the like, and realizes real-time controllable shock excitation;
(9) the seismic source can be repeatedly used through the switch, the operation is simple, and continuous and repeated operation can be realized.
Drawings
Fig. 1 is a schematic structural diagram of a high-pressure pulse water jet controllable active seismic source advanced detection device.
Fig. 2 is a working schematic diagram of the high-pressure pulse water jet controllable active seismic source advanced detection device.
In the figure: the method comprises the following steps of 1-a water tank, 2-a water supply pump, 3-a supercharger, 4-a servo motor, 5-a convergent nozzle, 6-a stop block, 7-a high-voltage pulse jet beam, 8-a directional device, 9-a receiving sensor, 10-a seismic wave data acquisition instrument, 11-an intelligent terminal, 12-shock seismic waves and 13-reflected waves.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the present invention provides a high-pressure pulsed water jet controllable active seismic source advanced detection apparatus, including a water tank 1, a
The
The
The lower end of the
The use method of the high-pressure pulse water jet controllable active seismic source advanced detection device comprises the following steps:
s1, the
s2, opening the seismic wave
s3, adjusting the outlet position of the
s4, setting the rotation speed of the servo motor 4 and the pressure of the
s5, the
s6, the high-voltage
s7, the intelligent terminal 11 receives and analyzes the
The high-pressure
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
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