阅读说明：本技术 一种煤炭巷道超前预报采集装置 (Advanced forecasting and collecting device for coal roadways ) 是由 钱荣毅 宋翱 于 2019-10-18 设计创作，主要内容包括：一种煤炭巷道超前预报采集装置,包括震源机构、检测机构和支撑机构,其中：所述震源机构用于发出震源波,所述检测机构用于检测所述震源机构发出震源波的回波信号,所述支撑机构用于支撑所述检测机构；所述震源机构和所述检测机构均安装于所述支撑机构上,本发明适用于隧道煤炭巷道超前预报采集,本发明弥补了现阶段巷道真三维超前地质预报三分量地震探测仪器的空白,可实现工作面前方裂隙断层发育区域、岩溶区域、瓦斯富集区域等不异常体的三维多分量地震数据采集；降低了常规巷道超前预报人为探测周期长、成本高、对施工进度影响大、数据一致性差等问题。(coal roadway advanced prediction acquisition devices comprise a seismic source mechanism, a detection mechanism and a support mechanism, wherein the seismic source mechanism is used for emitting seismic source waves, the detection mechanism is used for detecting echo signals of the seismic source waves emitted by the seismic source mechanism, the support mechanism is used for supporting the detection mechanism, and the seismic source mechanism and the detection mechanism are both arranged on the support mechanism.)

The advanced forecasting and collecting device for coal roadways is characterized by comprising a seismic source mechanism, a detection mechanism and a supporting mechanism, wherein:

the seismic source mechanism is used for emitting seismic source waves, the detection mechanism is used for detecting echo signals of the seismic source waves emitted by the seismic source mechanism, and the supporting mechanism is used for supporting the detection mechanism;

the seismic source mechanism and the detection mechanism are both arranged on the supporting mechanism.

2. The kind of coal roadway look-ahead collecting device of claim 1, wherein the supporting mechanism includes two parallel arranged main brackets, a geophone fixing rod arranged between the two main brackets, a fixed bracket arranged on the side surface of the main bracket and a second fixed bracket arranged on the rear surface of the main bracket, two sides of the main bracket are provided with slots, two ends of the geophone fixing rod pass through the slots, two ends of the geophone fixing rod are provided with fixing terminals for positioning the geophone fixing rod, the tops of the fixed bracket and the second fixed bracket are both rotatably mounted on the main bracket through pin shafts, and both the fixed bracket and the second fixed bracket are adopted.

3. The kind of coal roadway look-ahead collecting device of claim 2, wherein said fixed support and said second fixed support are both hydraulic rods with hydraulic length adjustment, or push rods with electric length adjustment, or movable rods with manual length adjustment.

4. An coal roadway advance forecast acquisition device as claimed in claim 3, wherein said fixed support and said second fixed support both use push rods with electrically adjustable lengths, wherein said fixed support and said second fixed support both include a main rod and an auxiliary rod, a cavity and a second cavity are opened in said main rod, a motor is arranged in said cavity, a threaded rod is arranged in said second cavity, a end of said threaded rod is connected with an output shaft of said motor, said auxiliary rod is sleeved in said second cavity, a screw rod sleeve is nested at the top of said auxiliary rod, said threaded rod passes through said screw rod sleeve, said auxiliary rod is hollow.

5. The kind of coal roadway advanced forecasting collection device as claimed in claim 2, wherein the detection mechanism includes a wave detection device and a connection device, the wave detection device is installed on the front surface of the wave detector fixing rod through the connection device, the wave detection device is provided with a plurality of groups, each group is provided with a plurality of wave detection devices, and the wave detection devices are distributed at equal intervals with groups.

6. The kind of coal roadway advance forecast acquisition device of claim 5, wherein said wave detection device is a three-component geophone, and said connection device is a spring or an electric push rod.

7. The kind of coal roadway look-ahead acquisition device of claim 2, wherein the seismic source mechanism comprises an impact seismic source, a mounting plate for mounting the impact seismic source, and a hydraulic cylinder for providing impulse force and connecting the mounting plate and the impact seismic source, the mounting plate is provided with seismic source mechanical arms at both ends, the inner side of the main support is provided with a fixed clip, and the end of the seismic source mechanical arm is rotatably mounted on the fixed clip through a pin shaft.

Technical Field

The invention belongs to the technical field of mine roadway construction, and particularly relates to an advanced forecasting and collecting device for coal roadways.

Background

Mine roadway construction is hidden high-risk underground construction projects, in recent years, various mine safety accidents frequently occur along with the continuous expansion of the mining depth and the mining scale of China, huge economic loss and casualties are caused, adverse geological environments with complex structures such as fracture fault development areas, karst areas, gas enrichment areas and the like are easily encountered in the roadway tunneling process, if detailed geological data such as spatial distribution, lithologic change and the like of the adverse geological areas cannot be obtained before tunneling and in the tunneling process, disasters such as roadway deformation, gas outburst, water inrush, caving strip and the like are easily caused, and huge influences are caused on the safety and construction process of constructors, the roadway advanced prediction technology is a main means for accurately finding out the spatial position, lithologic parameters and geological structures of the adverse geological areas in front of a working face, rapid and accurate roadway advanced prediction detection can provide a basis for judging the category of surrounding rocks, making and optimizing a construction scheme and a construction technology, and the existing roadway advanced prediction technology becomes a high-nondestructive advanced prediction technology based on the detection of the geological depths of roadway and detection, and becomes a high-accuracy advanced prediction technology;

the method is characterized in that a small space in a mine roadway is used, great limitation is brought to the arrangement of a seismic detection observation system and the shape, the size and the like of a detection instrument, in the existing mine roadway advance prediction technology based on seismic exploration, a receiving device is arranged on the side wall of the roadway, the advance prediction of a geological body in front of the roadway working face is carried out in a mode that an excitation device is arranged on the working face or the side wall of the roadway, different from the conventional earth surface half-space seismic detection, the roadway space is a quasi-full-space condition and is influenced by seismic wave propagation rules, less Reflection information from an abnormal body in front of the working face is received on the side wall of the roadway, however, Reflection information from the abnormal body in front of the working face is received on the working face, the existing receiving instrument is designed for receiving the side wall of the roadway, no special is used for a Reflection signal receiving device for receiving information of the working face, the roadway working face has special conditions such as high gas and the like, the seismic source is required to have explosion-proof performance, the Tunnel is used for carrying out Tunnel seismic source early detection technology that the small explosive quantity is used for carrying out the excitation of the roadway, safety hazard of the roadway, the high-expected seismic source, the underground seismic source, the conventional underground seismic source, the underground seismic source is required to be carried out the low-seismic.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides advanced forecasting and collecting devices for coal roadways.

In order to achieve the purpose, the invention adopts the following technical scheme:

kind of coal tunnel advance forecast collection system, including source mechanism, detection mechanism and supporting mechanism, wherein:

the seismic source mechanism is used for emitting seismic source waves, the detection mechanism is used for detecting echo signals of the seismic source waves emitted by the seismic source mechanism, and the supporting mechanism is used for supporting the detection mechanism;

the seismic source mechanism and the detection mechanism are both arranged on the supporting mechanism.

Preferably, the supporting mechanism comprises two main supports arranged in parallel, a detector fixing rod arranged between the two main supports, an th fixing support arranged on the side faces of the main supports and a second fixing support arranged on the rear surface of the main supports, clamping grooves are formed in two sides of the main supports, two ends of the detector fixing rod penetrate through the clamping grooves, fixing terminals used for positioning the detector fixing rod are arranged at two ends of the detector fixing rod, the th fixing support and the top of the second fixing support are rotatably installed on the main supports through pin shafts, and the th fixing support and the second fixing support are both adopted.

Preferably, the th fixed bracket and the second fixed bracket both adopt a hydraulic rod for hydraulically adjusting the length, a push rod for electrically adjusting the length or a movable rod for manually adjusting the length.

Preferably, the fixed bolster with the second fixed bolster all adopts the push rod of electrical control length, wherein, the fixed bolster with the second fixed bolster all includes the mobile jib and assists the pole, cavity and second cavity have been seted up to the mobile jib is inside, the inside motor that sets up of cavity, the inside threaded rod that is provided with of second cavity, the end of threaded rod with the output shaft of motor, assist the pole registrate in the second cavity, it has the lead screw cover to assist the nested lead screw top, the threaded rod passes the lead screw cover, it adopts hollow out construction to assist the pole.

Preferably, detection mechanism includes detection device and connecting device, detection device passes through connecting device installs detector dead lever front surface, detection device is provided with the multiunit altogether, and every group all is provided with a plurality of, with detection device equidistance distribution of group.

Preferably, the wave detection device adopts a three-component geophone, and the connecting device adopts a spring or an electric push rod.

Preferably, the seismic source mechanism comprises an impact seismic source, a mounting plate for mounting the impact seismic source and a hydraulic cylinder for providing impulse and connecting the mounting plate and the impact seismic source, seismic source mechanical arms are arranged at two ends of the mounting plate, a fixing clamping piece is arranged on the inner side of the main support, and the end of each seismic source mechanical arm is rotatably mounted on the fixing clamping piece through a pin shaft.

The coal roadway advanced prediction and acquisition device disclosed by the invention fills the blank of a roadway true three-dimensional advanced geological prediction three-component seismic detecting instrument at the present stage, can realize three-dimensional multi-component seismic data acquisition of non-abnormal bodies such as a fracture fault development area, a karst area, a gas enrichment area and the like in front of a working face, and reduces the problems of long artificial detection period, high cost, large influence on construction progress, poor data causality and the like in conventional roadway advanced prediction.

According to the invention, the th fixing support and the second fixing support can be adjusted in length, so that the th fixing support and the second fixing support can be adjusted in length according to the terrain of field construction to be matched with the terrain, the application range of the device is widened, and the th fixing support and the second fixing support can enable the whole device to be more convenient to carry when being contracted;

in the invention, the connecting device used for connecting and installing the wave detection device and the detector fixing rod can adopt a spring and an electric tow rod, when the connecting device used for installing the wave detection device and the detector fixing rod adopts the spring, the device is more convenient to install, the joint of the wave detection device and the working surface can be ensured due to the elastic force of the spring, and when the connecting device used for installing the wave detection device and the detector fixing rod adopts an electric push rod, the extrusion force between all the wave detection devices and the working surface can be ensured, so that the echo signal detected by the wave detection device is more accurate.

Drawings

FIG. 1 is a schematic view of the overall structure of an advanced forecasting and collecting device for coal roadways;

FIG. 2 is a side view of an advanced forecasting and collecting device for coal roadways according to the invention;

fig. 3 is a schematic structural view of a fixed support in an embodiment 2 of an coal roadway look-ahead device.

The reference numbers of the fixing supports are 1, th fixing supports, 101, a main support, 102, an auxiliary support, 2, a main support, 3, a fixing terminal, 4, a detector fixing rod, 5, a seismic source mechanical arm, 6, an impact seismic source, 7, a mounting plate, 8, a fixing clamping piece, 9, a spring, 10, a three-component seismic detector, 11, a clamping groove, 12, a second fixing support, 13, a th cavity, 14, a second cavity, 15, a threaded rod, 16, a screw rod sleeve, 17 and a motor.

Detailed Description

The following describes, with reference to fig. 1, a specific embodiment of the advanced forecasting collection device for coal roadways in , and the advanced forecasting collection device for coal roadways in the invention is not limited to the description of the following embodiment.