A high strength fully mechanized caving face top coal all-direction disturbance method

Abstract

The application discloses a high-strength fully-mechanized caving face top coal omnibearing disturbance method, and specifically comprises the following steps: measuring physical and mechanical parameters of the top coal and the gangue coal rock of the working face, and pre-determining the spherical arch classification according to the result; setting different types of spherical arch disturbance programs in the intelligent control system of the hydraulic support; observing the caving area of the working face, and obtaining the distribution form of the coal gangue block body behind the hydraulic support and the position of the arch angle through a three-dimensional laser scanner; and selecting a reasonable disturbance program according to the real spherical arch information to perform the disturbance operation until the coal flows smoothly. The scheme in the application is suitable for the technical conditions of fully-mechanized caving of composite top coal, improves the disturbance strength of the top coal, improves the visualization degree behind the hydraulic support, enhances the damage effect of the top coal structure, and improves the caving efficiency of the working face.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underground coal mining, in particular to a high-strength fully-circumferential disturbance method for top coal of a fully-mechanized caving face. BACKGROUND

[0002] Intelligent high-strength fully-mechanized caving mining is usually used for super-thick coal seams, and the high-strength fully-mechanized caving mining has a large thickness of mining at one time, and the top coal is generally a composite top coal body with multiple thick parting layers and coal interbeds. During the caving process, the large-size broken blocks of the parting layer with high strength easily form a spherical arch above and behind the hydraulic support to block the caving opening of the support, resulting in a low top coal recovery rate. The fully-circumferential disturbance of the top coal of the high-strength fully-mechanized caving face can effectively improve the top coal recovery rate, avoid waste of coal resources, and realize intelligent high-strength high-recovery mining of super-thick coal seams.

[0003] The composite top coal body is mainly broken by hydraulic fracturing and blasting to achieve the purpose of destroying the integrity and improving the recovery rate. The hydraulic fracturing has a large crack propagation range but low density, and the coal breaking effect is poor. The blasting technology has a good coal breaking effect, but the blasting breaking radius is less than 1 m, and intensive hole blasting is needed to achieve the purpose of breaking the top coal in a large range. Moreover, the blasting can only be performed in a small range on both sides of the working face, and it is difficult to cover the whole working face, resulting in a weakened top coal weakening effect.

[0004] Therefore, there is an urgent need for a high-strength fully-circumferential disturbance method for top coal of a fully-mechanized caving face. SUMMARY

[0005] The present application provides a high-strength fully-circumferential disturbance method for top coal of a fully-mechanized caving face, which can directly disturb the top coal of the whole working face through large-amplitude movements of various mechanisms of a powerful hydraulic support, and is an effective method for weakening the top coal body. The present application solves the problems of the traditional hydraulic fracturing and blasting methods, such as large engineering quantity, large construction difficulty, limited treatment range to both ends of the working face, low single-hole top coal breaking efficiency, poor safety, and poor top coal weakening effect.

[0006] The present application provides a high-strength fully-circumferential disturbance method for top coal of a fully-mechanized caving face, which includes a hydraulic support and a hydraulic support intelligent control system, the hydraulic support is connected with the hydraulic support intelligent control system, and specifically includes the following steps:

[0007] Coal and rock physical and mechanical parameters of the top coal and parting layer of the working face are obtained, and a spherical arch classification and preliminary determination is performed according to the coal and rock physical and mechanical parameters;

[0008] According to the spherical arch classification and preliminary determination, an arch disturbance program of different types of spherical arches is set in the hydraulic support intelligent control system;

[0009] In the coal caving area of the working face, the real spherical arch information is obtained by the three-dimensional laser scanner, and the corresponding disturbance program is selected in the intelligent control system of the hydraulic support to perform disturbance until the coal flow at the coal caving opening of the hydraulic support is smooth.

[0010] When the coal flow at the coal caving opening of the hydraulic support is not smooth, the real spherical arch information is observed again by the three-dimensional laser scanner, and the corresponding disturbance program is selected in the intelligent control system of the hydraulic support to perform disturbance until the required coal mining amount is completed.

[0011] The high-strength fully-mechanized caving face top coal full-range disturbance method, preferably, the hydraulic support comprises a hydraulic cylinder, a tail beam, a plug plate, a balance cylinder, a shield beam, front and rear columns, a top beam, a video system, coal flow, a coal caving opening and a scraper conveyor, the front and rear columns are connected with the top beam, and lengths of the front and rear columns are different, the hydraulic cylinder is connected with the front and rear columns, the video system is arranged on the top beam, the top beam is connected with the shield beam through the balance cylinder, the shield beam, the tail beam and the plug plate are sequentially connected, the shield beam and the tail beam are hingedly connected below the support rod, the plug plate is telescopically arranged on the tail beam, the hydraulic cylinder is also arranged on the tail beam, the coal caving opening is arranged at the plug plate, the scraper conveyor is arranged below the coal caving opening, and the top coal is above the top beam.

[0012] The high-strength fully-mechanized caving face top coal full-range disturbance method, preferably, the spherical arch classification comprises any one or any combination of the following three types of arches:

[0013] Type I arch, arch feet are located in a goaf and a tail beam;

[0014] Type II arch, arch feet are located in a goaf and a shield beam;

[0015] Type III arch, arch feet are located in a goaf and a top beam.

[0016] The high-strength fully-mechanized caving face top coal full-range disturbance method, preferably, the arch disturbance programs of different types of spherical arches comprise any one or any combination of the following three types of arch disturbance programs:

[0017] Type I arch disturbance program is simultaneously repeatedly swinging a tail beam and retracting and extending a plug plate;

[0018] Type II arch disturbance program is simultaneously repeatedly retracting and extending a balance cylinder, swinging a tail beam and retracting and extending a plug plate;

[0019] Type III arch disturbance program is simultaneously repeatedly lifting front and rear columns and retracting and extending a balance cylinder.

[0020] The physical and mechanical parameters of the top coal and the gangue coal rock in the high-intensity fully-mechanized caving face top coal all-direction disturbance method preferably include the density, porosity, compressive strength and internal friction angle of the top coal and the gangue.

[0021] The real spherical arch information in the high-intensity fully-mechanized caving face top coal all-direction disturbance method preferably includes the distribution shape and arch angle position of the coal and gangue block behind the hydraulic support.

[0022] The high-intensity fully-mechanized caving face top coal all-direction disturbance method preferably includes the following steps in the step of observing the real spherical arch information again by using the three-dimensional laser scanner:

[0023] The three-dimensional laser scanner is used to scan the original spherical arch that has not been damaged, i.e., the type of the spherical arch has not changed, and the same disturbance program is continued to be used for disturbance until the coal flow at the coal discharge opening of the hydraulic support is smooth.

[0024] The three-dimensional laser scanner is used to scan the spherical arch and find that the type of the spherical arch has changed, and the corresponding disturbance program is selected in the intelligent control system of the hydraulic support according to the real spherical arch information scanned by the three-dimensional laser scanner for disturbance until the coal flow at the coal discharge opening of the hydraulic support is smooth.

[0025] The high-intensity fully-mechanized caving face top coal all-direction disturbance method preferably includes that the intelligent control system of the hydraulic support includes an inclination sensor, a displacement sensor and a controller, the inclination sensor is arranged on the shield beam and the top beam respectively, the displacement sensor is arranged on the tail beam and the plug plate respectively, and the inclination sensor and the displacement sensor are connected with the controller respectively, and the controller is further connected with the hydraulic cylinder and the balance cylinder to realize the adjustment of the stroke of the hydraulic cylinder by the controller to realize the disturbance program strength of the arch.

[0026] The beneficial effects are:

[0027] 1. The scheme in the present application is suitable for the high-intensity fully-mechanized caving mining composite top coal body difficult caving technical conditions, improves the disturbance strength of the top coal body, improves the visualization degree behind the hydraulic support, enhances the destruction effect of the top coal structure, and improves the caving efficiency of the working face.

[0028] 2. The top coal structure disturbance and destruction scheme based on the intelligent control system of the hydraulic support in the present application can replace the manual automatic operation according to the preset program, improves the safety of the spherical arch processing, ensures the accuracy of the processing position, and reduces the blindness of the top coal disturbance scheme.

[0029] In order to solve the problems of large engineering quantity, large construction difficulty, treatment range limited in both ends of the working face, low single-hole top coal crushing efficiency, poor safety, poor top coal weakening effect and the like of the hydraulic fracturing and blasting technology used by the traditional top coal weakening of the fully mechanized caving face in the coal mine, improve the top coal recovery rate of the fully mechanized caving face, and meet the intelligent and information technology innovation needs of the coal mine, the present application discloses a kind of high-strength fully mechanized caving face top coal all-around disturbance method, which determines the coal rock physical and mechanical parameters of the top coal and the gangue of the working face, pre-determines the spherical arch classification, sets different categories of spherical arch disturbance programs in the intelligent control system of the hydraulic support, then obtains the distribution form of the coal gangue block body behind the hydraulic support and the location of the arch angle through the three-dimensional laser scanner, and finally, according to the real spherical arch information, selects a reasonable disturbance program for disturbance operation. By using the top coal structure disturbance and destruction scheme of the fully caving coal area based on the intelligent control system of the hydraulic support, manual operation according to the preset program can be replaced, the safety of the spherical arch treatment is improved, the accuracy of the treatment position is ensured, the blindness of the top coal disturbance scheme is reduced, the disturbance intensity of the top coal body is improved, the visualization degree behind the hydraulic support is improved, the destruction effect of the top coal structure is enhanced, and the caving efficiency of the working face is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the high-strength fully mechanized caving face top coal all-around disturbance method in the present application;

[0031] Figure 2 is a schematic diagram of the spherical arch classification of the working face hydraulic support in the present application;

[0032] Figure 3 is a schematic diagram of the hydraulic support of the fully mechanized caving face in the coal mine in the present application.

[0033] In the drawings:

[0034] 1, hydraulic support; 2, controller; 3, scraper conveyor; 4, hydraulic oil cylinder;

[0035] 5, tail beam; 6, plug plate; 7, balance oil cylinder; 8, shield beam; 9, front stand;

[0036] 10, rear stand; 11, top beam; 12, video system; 13, coal flow; 14, caving opening;

[0037] 15, support rod. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present application.

[0039] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms such as "upper" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the system or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The present application provides a kind of high strength fully mechanized caving face top coal all azimuth disturbance method, including hydraulic support and hydraulic support intelligent control system, the hydraulic support is connected with the hydraulic support intelligent control system, specifically including the following steps: coal and rock physical mechanics parameters are carried out to top coal and dirt band of working face, spherical arch classification pre-determination is carried out according to the coal and rock physical mechanics parameters.According to spherical arch classification pre-determination, set different categories of spherical arch disturbance program in the hydraulic support intelligent control system.In the working face caving area, obtain real spherical arch information by three-dimensional laser scanner, select corresponding disturbance program in the hydraulic support intelligent control system to disturb, until the coal flow at the caving opening of the hydraulic support is smooth.When the coal flow at the caving opening of the hydraulic support is not smooth, real spherical arch information is observed again by three-dimensional laser scanner, and the corresponding disturbance program is selected in the hydraulic support intelligent control system to disturb until the required coal mining amount is completed.The scheme in the present application is suitable for fully mechanized caving composite top coal difficult to emerge and put technology condition, improves top coal disturbance intensity, improves the visualization degree behind the hydraulic support, enhances the damage effect of top coal structure, improves the caving efficiency of working face.

[0042] Next, a kind of high strength fully mechanized caving face top coal all azimuth disturbance method provided by the embodiment of the present application will be described in detail with reference to the drawings.

[0043] As Figure 1 ,Figure 2 and Figure 3 As shown in the figure, a high-strength fully-mechanized caving face top coal all-directional disturbance method includes a hydraulic support 1 and a hydraulic support intelligent control system, the hydraulic support 1 is connected with the hydraulic support intelligent control system, wherein the hydraulic support 1 includes a hydraulic cylinder 4, a tail beam 5, a plug-in plate 6, a balance cylinder 7, a shield beam 8, a front column 9 and a rear column 10, a top beam 11, a video system 12, a coal flow 13, a caving mouth 14 and a scraper conveyor 3, the front column 9 and the rear column 10 are connected with the top beam 11, and the front column 9 and the rear column 10 are not the same in length, the hydraulic cylinder 4 is connected with the front column 9 and the rear column 10, the video system 12 is further arranged on the top beam 11, the top beam 11 is connected with the shield beam 8 through the balance cylinder 7, the shield beam 8, the tail beam 5 and the plug-in plate 6 are sequentially connected, the shield beam 8 and the tail beam 5 are hingedly connected with a support rod 15 below, and the plug-in plate 6 is telescopically arranged on the tail beam 5, the tail beam 5 is also provided with a hydraulic cylinder, the caving mouth 14 is arranged at the plug-in plate 6, and the scraper conveyor 3 is arranged below the caving mouth 14. Wherein, the top beam 11 is above the top coal. The method specifically includes the following steps:

[0044] S1: Coal and rock physical and mechanical parameters of the working face top coal and the gangue are obtained, and spherical arch classification pre-determination is performed according to the coal and rock physical and mechanical parameters, the spherical arch classification includes any one or any combination of the following three types of arches:

[0045] Type I arch, the arch foot is located in the goaf and the tail beam 5;

[0046] Type II arch, the arch foot is located in the goaf and the shield beam 8;

[0047] Type III arch, the arch foot is located in the goaf and the top beam 11.

[0048] Wherein, the coal and rock physical and mechanical parameters of the working face top coal and the gangue include the density, porosity, compressive strength and internal friction angle of the top coal and the gangue. Wherein, the density is used to calculate the self-weight of the spherical arch, the porosity is used to evaluate the crack development degree of the coal and rock block, the compressive strength is used to evaluate the overall strength of the spherical arch, and the internal friction angle is used to calculate the hinged strength of the coal and rock block.

[0049] S2: According to the spherical arch classification pre-determination, different types of spherical arch disturbance programs are set in the hydraulic support intelligent control system.

[0050] The different types of spherical arch disturbance programs include any one or any combination of the following three types of arch disturbance programs:

[0051] Type I arch disturbance program is to simultaneously repeatedly swing the tail beam 5 and retract and extend the plug-in plate 6.

[0052] Wherein, the plug-in plate 6 is telescopically arranged on the tail beam 5, and the tail beam 5 is provided with a cylinder.

[0053] The type II arch disturbance program is to simultaneously repeat the retracting and extending of the balance oil cylinder 7, the swinging of the tail beam 5 and the retracting and extending of the insert plate 6.

[0054] The angle of the shield beam 8 is adjusted by retracting and extending the balance oil cylinder 7.

[0055] The type III arch disturbance program is to simultaneously repeat the lifting and lowering of the front and / or rear upright columns 9 and 10 and the retracting and extending of the balance oil cylinder 7.

[0056] The front and rear upright columns 9 and 10 are of different lengths, and the angle of the top beam 11 is adjusted by lifting and lowering the front and / or rear upright columns 9 and 10.

[0057] The real spherical arch information includes the distribution pattern of the coal and gangue block body behind the hydraulic support and the position of the arch angle.

[0058] S4: When the coal flow at the coal discharging opening of the hydraulic support is not smooth, the real spherical arch information is observed again by the three-dimensional laser scanner, and a corresponding disturbance program is selected in the intelligent control system of the hydraulic support to disturb until the required amount of coal is mined.

[0059] The real spherical arch information includes the distribution pattern of the coal and gangue block body behind the hydraulic support and the position of the arch angle.

[0060] In the disturbance in step S3, the spherical arch damage condition is determined according to whether the coal flow at the coal discharging opening 14 is smooth. When the coal flow at the coal discharging opening 14 is not smooth, it may be because the spherical arch in step S3 has not been damaged, or the type of the spherical arch has changed due to the disturbance in step S3.

[0061] The step S4 further includes steps S41 and S42:

[0062] Step S41: In step S4, it is found by the three-dimensional laser scanner that the spherical arch in step S3 has not been damaged. Then the disturbance program in step S3 is continued to disturb until the coal flow is smooth and the scraper conveyor 3 is operated out of the working face.

[0063] Step S42: In step S4, it is found by the three-dimensional laser scanner that the type of the spherical arch has changed. Then, according to the real spherical arch information scanned by the three-dimensional laser scanner this time, a corresponding disturbance program is selected in the intelligent control system of the hydraulic support to disturb until the coal flow 13 at the coal discharging opening 14 of the hydraulic support is smooth and the scraper conveyor 3 is operated out of the working face.

[0064] As Figure 3 shown in the figure, the hydraulic support intelligent control system includes an inclination sensor, a displacement sensor and a controller 2, the inclination sensor is arranged on the shield beam 8 and the top beam 11 respectively, the displacement sensor is arranged on the tail beam 5 and the plug plate 6 respectively, and the inclination sensor and the displacement sensor are connected with the controller 2 respectively, and the controller 2 is also connected with the hydraulic cylinder 4 to realize the adjustment of the stroke of the hydraulic cylinder 4 by the controller 2 to complete the arch disturbance program strength.

[0065] Embodiment 1

[0066] The high strength fully mechanized caving mining conditions in this embodiment are:

[0067] 1, the monthly output reaches 600,000 tons, 2, the thickness of the top coal is m≥12m, 3, the coal body hardness f≥1.5m, and at least two of the above conditions are met.

[0068] The hydraulic support 1 includes a working face four-column support shield type and a two-column shield type, the initial support force of the support is ≥8000kN, the rated working resistance of the hydraulic support 1 is ≥10000kN, the maximum support height of the hydraulic support 1 is ≥3.8m, and the hydraulic support 1 is equipped with a hydraulic support intelligent control system.

[0069] Step S1: Coal and rock physical and mechanical parameters of the working face top coal and gangue are determined, and spherical arch classification is pre-determined according to the coal and rock physical and mechanical parameters.

[0070] Coal and rock physical and mechanical determination first needs to be carried out in the high strength fully mechanized caving face, and the coring work is completed by the coring drill rod matched with the hydraulic tunnel drill in the coal mine underground. The drill needs to have the need to make ≥45° drilling operation, the inner diameter of the coring drill rod should be ≥60mm, after the coring is completed underground, the coal core and the rock core need to be plastic wrapped with preservative film and marked with the coring position, properly boxed and transported to the laboratory for sample processing, the sample is a cylinder with a diameter ≥50mm and a height ≥100mm, and the physical and mechanical parameter test of the sample is carried out by using a triaxial rock testing machine.

[0071] According to the size distribution of the broken coal and rock block and the spherical arch strength calculation result, the spherical arch classification is pre-determined. The pre-determination method is as follows: the size distribution of the broken coal and rock block is counted, the possible space size of the spherical arch is predicted, the overall strength of the spherical arch of different space sizes is evaluated according to the coal and rock physical and mechanical parameter determination result, and the spherical arch classification is carried out according to the evaluation result.

[0072] According to the arch foot position of the spherical arch, the spherical arch can be divided into three types: type I arch, the arch foot is located in the goaf and the tail beam 5; type II arch, the arch foot is located in the goaf and the shield beam 8; type III arch, the arch foot is located in the goaf and the top beam 11, and the arch structure stability is sorted according to the instability difficulty: type I arch < type II arch < type III arch.

[0073] Step S2: According to the pre-determination of spherical arch classification, set different types of spherical arch disturbance programs in the intelligent control system of the hydraulic support.

[0074] Step S3: Observe in the coal releasing area of the working face, obtain the real spherical arch information by the three-dimensional laser scanner, select the corresponding disturbance program in the intelligent control system of the hydraulic support to perform disturbance until the coal flow 13 at the coal releasing port 14 of the hydraulic support is unobstructed.

[0075] Observe in the coal releasing area of the working face, obtain the distribution pattern of the coal gangue block body behind the hydraulic support 1 and the arch foot position by the three-dimensional laser scanner; the three-dimensional laser scanner can realize the spatial depiction of the structure, use the working face video system 12 to patrol and observe in the coal releasing area of the working face in the order of working face starting point→end point→starting point, select the specific position of the hydraulic support 1 whose coal flow 13 blocks the coal releasing port 14, after the scanner is turned on and operated, push the equipment to the support coal releasing port 14, start scanning by operating the equipment, after scanning is completed, retrieve the equipment, check the three-dimensional scanning result, analyze the distribution pattern of the coal gangue block body behind the hydraulic support 1, judge the arch foot position, and determine the type of the spherical arch behind the support.

[0076] Select a reasonable disturbance program for disturbance operation according to the spherical arch shape and arch foot position obtained from the three-dimensional laser scanning result; judge the spherical arch category according to the spherical arch shape and arch foot position obtained from the three-dimensional laser scanning result, and select a corresponding disturbance program for disturbance operation in the intelligent control system of the hydraulic support.

[0077] When the determination result is type I arch, that is, the arch foot is located in the goaf and the tail beam 5, select the "type I arch disturbance program"; when the determination result is type II arch, the arch foot is located in the goaf and the shield beam 8, select the "type II arch disturbance program"; when the determination result is type III arch, the arch foot is located in the goaf and the top beam 11, select the "type III arch disturbance program".

[0078] S4: When the coal flow at the coal releasing port of the hydraulic support is not unobstructed, observe the real spherical arch information by the three-dimensional laser scanner again, select a corresponding disturbance program in the intelligent control system of the hydraulic support to perform disturbance until the required coal mining amount is completed.

[0079] When the coal flow at the coal releasing port 14 is not unobstructed, it may be because the spherical arch is not damaged in the step S3, or the type of the spherical arch may be changed due to the disturbance in the step S3.

[0080] The step S4 further includes steps S41 and S42:

[0081] Step S41: the three-dimensional laser scanner scanning in step S4 finds that the spherical arch is still not broken in step S3, so the disturbance program in step S3 is continued to be used for disturbance until the coal flow is smooth, and the scraper conveyor 3 is operated out of the working face.

[0082] Step S42: the three-dimensional laser scanner scanning in step S4 finds that the type of the spherical arch has changed, so according to the real spherical arch information scanned by the three-dimensional laser scanner this time, a corresponding disturbance program is selected in the intelligent control system of the hydraulic support to perform disturbance until the coal flow 13 at the coal discharge port 14 of the hydraulic support is smooth, and the scraper conveyor 3 is operated out of the working face.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high strength fully mechanized caving face top coal all-directional disturbance method, characterized in that, The hydraulic support and the intelligent control system of the hydraulic support are connected, and specifically include the following steps: The coal and rock physical and mechanical parameters of the top coal and the gangue in the working face are measured, and the spherical arch classification is pre-determined according to the coal and rock physical and mechanical parameters; According to the pre-determination of the spherical arch classification, the arch disturbance programs of different categories of spherical arches are set in the intelligent control system of the hydraulic support; The working face is observed, the real spherical arch information is obtained by the three-dimensional laser scanner, the corresponding disturbance program is selected in the intelligent control system of the hydraulic support to disturb, and the coal flow at the coal discharge opening of the hydraulic support is smooth; When the coal flow at the coal discharge opening of the hydraulic support is not smooth, the real spherical arch information is observed again by the three-dimensional laser scanner, and the corresponding disturbance program is selected in the intelligent control system of the hydraulic support to disturb until the required coal mining amount is completed; The real spherical arch information includes the distribution form of the coal and gangue block behind the hydraulic support and the arch angle position.

2. The high strength fully mechanized caving face top coal omnibearing disturbance method according to claim 1, characterized in that, The hydraulic support includes a hydraulic cylinder, a tail beam, a plug plate, a balance cylinder, a shield beam, front and rear columns, a top beam, a video system, a coal flow, a coal discharge opening and a scraper conveyor, the front and rear columns are connected with the top beam, and the lengths of the front and rear columns are different, the hydraulic cylinder is connected with the front and rear columns, the video system is arranged on the top beam, the top beam is connected with the shield beam through the balance cylinder, the shield beam, the tail beam and the plug plate are sequentially connected, the lower part of the shield beam and the tail beam is hinged with a support rod, the plug plate is telescopically arranged on the tail beam, the hydraulic cylinder is also arranged on the tail beam, the plug plate is provided with the coal discharge opening, the coal discharge opening is provided with the scraper conveyor below, and the top beam is provided with the top coal above.

3. The high strength fully mechanized caving face top coal omnibearing disturbance method according to claim 2, characterized in that, The spherical arch classification includes any one or any combination of the following three types of arches: Type I arch, arch foot in goaf and tail beam; Type II arch, arch foot in goaf and shield beam; Type III arch, arch foot in goaf and top beam.

4. The high strength fully mechanized caving face top coal omnibearing disturbance method according to claim 3, characterized in that, The arch disturbance programs of different categories of spherical arches include any one or any combination of the following three types of arch disturbance programs: Type I arch disturbance program is to repeatedly swing the tail beam and retract and extend the plug plate at the same time; Type II arch disturbance program is to repeatedly retract and extend the balance cylinder, swing the tail beam and retract and extend the plug plate at the same time; Type III arch disturbance program is to repeatedly lift and lower the front and rear columns and retract and extend the balance cylinder at the same time.

5. The high strength fully mechanized caving face top coal omnibearing disturbance method according to claim 4, characterized in that, The coal and rock physical and mechanical parameters of the top coal and the gangue in the working face include the density, porosity, compressive strength and internal friction angle of the top coal and the gangue.

6. The high strength fully mechanized caving face top coal omnibearing disturbance method according to claim 5, characterized in that, The step of "observing the real spherical arch information again by the three-dimensional laser scanner" specifically includes the following steps: The original spherical arch that has not been damaged is scanned by the three-dimensional laser scanner, that is, the type of the spherical arch has not changed, the same disturbance program is continued to be used for disturbance until the coal flow at the coal discharge opening of the hydraulic support is smooth. The type of spherical arch is changed by scanning with a three-dimensional laser scanner, and a corresponding disturbance program is selected again in the intelligent control system of the hydraulic support according to the real spherical arch information scanned by the three-dimensional laser scanner to perform disturbance until the coal flow at the coal discharge opening of the hydraulic support is smooth.

7. The high-strength fully mechanized caving face top coal omnibearing disturbance method according to any one of claims 2 to 6, characterized in that, The intelligent control system of the hydraulic support comprises inclination sensors, displacement sensors and a controller, the inclination sensors are arranged on the shield beam and the top beam respectively, the displacement sensors are arranged on the tail beam and the plug plate respectively, and the inclination sensors and the displacement sensors are connected with the controller respectively, and the controller is further connected with the hydraulic cylinder and the balance cylinder, so that the controller adjusts the stroke of the hydraulic cylinder to complete the arch disturbance program strength.

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