Method for breaking up dust in complex environments

Abstract

The application discloses a method for breaking micro-dust in complex environment, which comprises the following steps: S1, breaking environment analysis: according to the geological conditions of rock mass, engineering progress and engineering requirements, the town complex environment control breaking, fine breaking and water medium transduction breaking technology are adopted for excavation, and the cross section of the tunneling roadway is a three-center arch. In the breaking implementation process of the application, no disturbance of the public and public disturbance disputes are caused. After the water medium transduction breaking, fine breaking and control breaking are used, the specific consumption of the breaking agent is reduced by 20.5%, the breaking dust is reduced by more than 40%, the breaking vibration is reduced by more than 25%, the breaking operation cost is reduced by more than 20%, the efficient, safe, economic and environmental protection goals of the breaking operation are realized, and the breaking technology can achieve good breaking effect under the complex environment condition of the town. Not only the breaking agent can be saved, the breaking dust can be reduced, but also the breaking vibration is small, and the breaking operation cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of engineering breaking, and particularly relates to a micro-dust breaking method in a complex environment. BACKGROUND

[0002] Breaking is a technology for achieving an intended purpose by using a breaking agent to produce compression, loosening, damage, throwing and killing effects in air, water, soil and rock medium or objects. When a medicine bag or charge explodes in a soil and rock medium or structure, the soil and rock medium or structure produces compression, deformation, damage, loosening and throwing, and is mainly used for soil and rock engineering, and removal of metal buildings and structures.

[0003] In a complex urban environment, the problem of disturbing people during breaking operation is prominent, and the smoke and dust vibration phenomenon is also difficult to control during the breaking process, which not only increases the breaking cost, but also makes it difficult to deal with the aftermath. Therefore, the application provides a micro-dust breaking method in a complex environment to solve the above problems. SUMMARY

[0004] The application aims to provide a micro-dust breaking method in a complex environment. To achieve the above purpose, the application provides the following technical scheme: a micro-dust breaking method in a complex environment, wherein the breaking engineering parameters are as follows: the breaking rock stratum is a medium weathered hard rock, the Protodyakonov's firmness coefficient f value is 8-12, the joint, bedding and fracture development is general, the engineering target is to excavate a horizontal roadway with a length of 240 m in the rock mass, the breaking rock is 1200 m 3 , and the whole large rock needs to be broken when the working well is excavated, the total amount of the breaking rock is 3000 m 3 , the working well has a diameter of 9 m and a depth of 10 m.

[0005] Preferably, the breaking engineering peripheral environment is as follows: there is a sidewalk above the engineering ground, and the sidewalk is provided with city facilities such as electric wires, cables and water pipes below 3 m and above the sidewalk, and the nearest distance between the breaking point and the protected facilities on the roadside is 15 m.

[0006] The micro-dust breaking method in a complex environment comprises the following steps:

[0007] S1 breaking environment analysis: according to the geological conditions of the rock mass, the engineering progress and the engineering requirements, the town complex environment control breaking, fine breaking and water medium conversion breaking technology are adopted for excavation, the roadway excavation section is a three-center arch, the straight hole bucket type slotting is adopted, the full-face breaking excavation mode is adopted, the step-by-step excavation mode is adopted during the vertical shaft excavation breaking, the free surface is created by using mixed slotting, then the blast holes are arranged according to a certain circle diameter, the cluster connection force detonating cord is used to excite the network, the hole-by-hole or several-hole segmented delay excitation is implemented, and the breaking design is optimized according to the test explosion and vibration monitoring results;

[0008] S2 shaft and roadway breaking parameters and excitation network: blast hole diameter 40 mm, total hole number 29, among which 6 holes are empty and 23 holes are charged, breaking agent unit consumption is determined according to rock firmness coefficient and cross-sectional area by table lookup and according to engineering experience, taking breaking agent unit consumption 2.4 kg / m 3 , total breaking agent amount per cycle 9.65 kg, breaking volume per cycle 3.22 m 3 ;

[0009] S3 shaft driving breaking parameters and excitation network: blast hole diameter 40 mm, hole number 153, among which 6 holes are empty and 147 holes are charged, breaking agent unit consumption is determined according to quota standard and according to engineering experience, taking breaking agent unit consumption 0.3 kg / m 3 for peripheral holes and 0.5 kg / m 3 for auxiliary holes, average charging coefficient of cut hole is taken as 0.65, total breaking agent amount per cycle 58.2 kg, breaking volume per cycle 63.59 m 3 ;

[0010] S4 control maximum single shot charge: according to the terrain and geological conditions of the project and tunnel engineering practice, breaking vibration is calculated according to the Sadowsky empirical formula, taking K=100, α=1.5, protective object particle vibration velocity v=2 cm / s, the nearest distance between shaft and roadway driving breaking operation area and protective object is 15 m, the nearest distance between shaft driving breaking operation area and protective object is 14 m, the maximum single section excitation charge is calculated to be 1.35 kg and 1.098 kg respectively, therefore, single shot charge must be controlled within 1.3 kg and 1 kg respectively;

[0011] S5 breaking monitoring: the objects to be protected in the project are various civil buildings beside the highway, breaking vibration velocity must be controlled to be not greater than 2 cm / s, when breaking particle vibration velocity approaches or is greater than 2 cm / s, maximum single shot charge must be further reduced or shock absorption holes are drilled on the edge of breaking area excavation face, hole distance is 25-30 cm, hole depth is more than 0.3 m of main blast hole depth;

[0012] S6 Control and protection of broken individual flying objects: water bag combined with stemming plug hole, ensure the length of the hole is not less than the minimum resistance line or row distance, and ensure the quality of the plug; take three-dimensional protection measures, when the depth of the roadway is within 10m, sandbags or water bags must be stacked at the entrance of the roadway to reduce air shock wave, when starting the broken roadway excavation, all holes must be covered with flexible material or gun cover, and the quality must be ensured, the method of covering the shaft mouth is: using steel to make shaft cover, and the stiffness meets the construction requirements, the cover sets the construction opening; when breaking, a layer of steel mesh is arranged on the cover, and 2-3 layers of sandbags are densely laid on the steel mesh, each sandbag is not less than 25kg, and the sandbags are covered with dense nylon mesh, at the same time, each hole is covered with flexible material or gun cover, the thickness of the flexible material cover layer is 30-50cm, when using a sack to cover, at least 3 layers of wet sacks are covered and connected together to prevent being thrown out during breaking, then bamboo splints are pressed on the flexible material or gun cover, and weights are added at both ends of the bamboo splints.

[0013] Preferably, in the step of shaft and roadway breaking parameters and network initiation, the cutting hole has a hole depth of 1.1m, 11 holes, 6 empty holes, a hole distance of 150mm, and a single hole charge of 0.45kg; the peripheral hole has a hole depth of 1m, 9 holes, and a single hole charge of 0.3kg.

[0014] Preferably, in the step of shaft and roadway breaking parameters and network initiation, the auxiliary hole has a hole depth of 1m, 9 holes, a hole distance of 0.6m, a hole row distance of 0.55m, and a single hole charge of 0.3kg; the hole is plugged with water bags combined with stemming, after charging, a water bag with a length of 20-30cm is first plugged, then the hole is filled with clay stemming, and the detonating cord must be protected during plugging.

[0015] Preferably, in the step of shaft and roadway breaking parameters and network initiation, the network initiation adopts cluster connection force initiation, implements hole-by-hole or multi-hole segmented delay initiation, the cutting hole is initiated first, then the auxiliary hole, and finally the peripheral hole, and the initiation charge of each section is not greater than 1.3kg.

[0016] Preferably, in the step of shaft and roadway breaking parameters and network initiation, the cutting hole has a hole depth of 1.3m, 13 holes, 6 empty holes, a hole distance of 150mm, and a single hole charge of 0.6kg; the peripheral hole has a hole depth of 1.2m, 60 holes, and a single hole charge of 0.3kg.

[0017] Preferably, in the step of shaft and roadway breaking parameters and network initiation, the auxiliary hole has a hole depth of 1.2m, 80 holes, a hole distance of 0.9m, a row distance of 0.85m, and a single hole charge of 0.45kg; the hole is plugged with water bags combined with stemming, and no-plugging initiation is prohibited.

[0018] Preferably, in the shaft tunneling breaking parameter and excitation network step, the excitation network adopts a millisecond delay lead blasting tube excitation network, uses MS15 in the hole and MS5 delay outside the hole, implements hole-by-hole or several-hole segmented delay excitation, and ensures that the excitation explosive quantity of each segment is not greater than 1.0 kg.

[0019] Compared with the prior art, the patent has the following beneficial effects:

[0020] In the breaking implementation process of the patent, no disturbance to the public and public disturbance disputes are caused, the water medium is used for breaking, fine breaking and controlled breaking, the breaking agent unit consumption is reduced by 20.5%, the breaking dust is reduced by more than 40%, the breaking vibration is reduced by more than 25%, the breaking operation cost is reduced by more than 20%, the efficient, safe, economic and environmentally-friendly goal of the breaking operation is achieved, the breaking technology can achieve good breaking effect under complex urban environment conditions, the breaking agent can be saved, the breaking dust can be reduced, the breaking vibration is small, and the breaking operation cost is also greatly reduced. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the patent will be clearly and completely described below in combination with the embodiments of the patent. Obviously, the described embodiments are only part of the embodiments of the patent, rather than all the embodiments. Based on the embodiments of the patent, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the patent.

[0022] The method for breaking dust under complex environment comprises the following steps:

[0023] S1 breaking environment analysis: according to the geological conditions of the rock mass, the engineering progress and the engineering requirements, the water medium is used for breaking, fine breaking and controlled breaking, and the town complex environment control breaking technology is used for excavation, the cross section of the flat roadway tunneling is a three-center arch (the arch height is 0.5 m, the wall height is 1.8 m, and the flat roadway width is 2.1 m), the straight hole barrel type slotting (double helix slotting) and full-face breaking excavation method are used, in the shaft tunneling breaking, the step-by-step excavation method is adopted, the mixed slotting (straight hole slotting combined with inclined hole conical slotting) is used to create a free surface, then the blast holes are arranged according to a certain circle diameter, the cluster connection force lead blasting tube excitation network is used, the hole-by-hole or several-hole segmented delay excitation is implemented, and the breaking design is optimized according to the test explosion and vibration monitoring results;

[0024] S2 shaft and roadway breaking parameter and excitation network: the blast hole diameter is 40 mm, the total number of holes is 29, of which 6 holes are empty and 23 holes are charged, the breaking agent unit consumption is determined as 2.4 kg / m according to the rock firmness coefficient (f=8-10) and the cross section area (4.02 m 2 ), the table is checked, and the breaking agent unit consumption is determined according to the engineering experience.3 Total amount of breaking agent per cycle 9.65 kg, amount of breaking agent per cycle 3.22 m 3

[0025] S3 Shaft tunneling breaking parameters and excitation network: blast hole diameter 40 mm, hole number 153, of which 6 are empty holes, 147 are charged holes, the specific consumption of breaking agent is determined according to the quota standard and engineering experience, the specific consumption of breaking agent of peripheral holes is 0.3 kg / m 3 , the specific consumption of breaking agent of auxiliary holes is 0.5 kg / m 3 , the average charging coefficient of cutting holes is 0.65, the total amount of breaking agent per cycle is 58.2 kg, and the amount of breaking agent per cycle is 63.59 m 3

[0026] S4 Control the maximum single shot amount: according to the topography and geological conditions of the project, as well as the practice of tunnel engineering, the breaking vibration is calculated according to the Sadowsky empirical formula, K=100, α=1.5, the vibration velocity of the protected object is taken as v=2 cm / s, the distance from the breaking operation area of shaft tunneling to the nearest protected object is 14 m, and the maximum single shot amount is calculated as 1.098 kg, therefore, the single shot amount must be controlled within 1 kg;

[0027] S5 Breaking monitoring: the objects to be protected in this project are various civil buildings beside the highway, and the breaking vibration velocity must be controlled not to exceed 2 cm / s, when the breaking particle vibration velocity approaches or exceeds 2 cm / s, the maximum single shot amount must be further reduced or shock absorption holes are drilled on the edge of the breaking area, the hole distance is 25-30 cm, and the drilling depth exceeds the main blast hole depth by 0.3 m;

[0028] ​​S6 Control protection of broken individual flying objects: water bag combined with stemming plug hole, ensure the length of the hole is not less than the minimum resistance line or row distance, and ensure the quality of the plug; take three-dimensional protection measures, when the depth of the roadway is within 10m, sandbags or water bags must be stacked at the entrance of the roadway to reduce the air shock wave, when starting the broken roadway excavation, all holes must be covered with flexible materials or gun cover, and the quality must be ensured, the method of covering the shaft mouth is: using steel to make a shaft cover, and the stiffness meets the construction requirements, the cover sets the construction opening; when breaking, a layer of steel mesh is arranged on the cover, and 2-3 layers of sandbags are densely laid on the steel mesh, each sandbag is not less than 25kg, and the sandbags are covered with dense nylon mesh at the same time, and each hole is covered with flexible material or gun cover, the thickness of the flexible material cover layer is 30-50cm, when using a sack to cover, at least 3 layers of wet sacks are covered and connected together to prevent being thrown out during breaking, then press the bamboo splint on the flexible material or gun cover, and add weights at both ends of the bamboo splint.

[0029] Example one:

[0030] The method for breaking dust in complex environment includes the following steps:

[0031] S1 Broken environment analysis: According to the geological conditions of rock mass, engineering progress, engineering requirements, adopt urban complex environment control breaking, fine breaking and water medium conversion breaking technology for excavation, the cross section of the roadway is three-center arch (arch height 0.5m, wall height 1.8m, roadway width 2.1m), adopt straight hole barrel type cutting (double spiral cutting), full section breaking excavation method for construction, when breaking in the shaft, adopt subpart, layer, step type excavation method, first use mixed cutting (straight hole cutting combined with inclined hole conical cutting) to create free surface, then arrange holes according to certain circle diameter, adopt cluster connection force detonating cord to excite network, implement hole by hole or several holes segmented delay excitation, according to the test explosion and vibration monitoring results, optimize the breaking design;

[0032] S2 Shaft and roadway breaking parameters and excitation network: hole diameter 40mm, total hole number 29, among which 6 are empty holes without charge, 23 are charge holes, breaking agent unit consumption is determined according to rock firmness coefficient (f=8-10) and cross section area (4.02m 2 , according to the table and engineering experience, the breaking agent unit consumption is determined to be 2.4kg / m 3 , the total breaking agent amount of each cycle is 9.65kg, and the breaking volume of each cycle is 3.22m 3 ;

[0033] S3 Shaft excavation breaking parameters and excitation network: hole diameter 40mm, hole number 153, among which 6 are empty holes without charge, 147 are charge holes, breaking agent unit consumption is determined according to the quota standard and engineering experience, the breaking agent unit consumption of the peripheral holes is 0.3kg / m3 , auxiliary hole breaker unit consumption of 0.5 kg / m 3 , the average charging coefficient of the slotting hole is 0.65, the total breaker amount of each cycle is 58.2 kg, and the breaking amount of each cycle is 63.59 m 3 ;

[0034] S4 control the maximum single shot amount: according to the terrain and geological conditions of the project, and the tunnel engineering practice, the maximum single shot amount is calculated according to the Sadowsky empirical formula, K=100, α=1.5, the vibration velocity of the protection object is v=2cm / s, the distance between the nearest place of the breaking operation area of the shaft and the protection object is 15m, the distance between the nearest place of the breaking operation area of the shaft and the protection object is 14m, and the maximum single shot amount is calculated to be 1.35kg and 1.098kg respectively, therefore, the single shot amount must be controlled within 1.3kg and 1kg respectively;

[0035] S5 breaking monitoring: the objects to be protected in the project are various civil buildings beside the highway, the breaking vibration velocity must be controlled to be not greater than 2cm / s, when the breaking vibration velocity is close to or greater than 2cm / s, the maximum single shot amount of each cycle must be further reduced or the dense shock holes are drilled on the edge of the breaking area to reduce the shock, the hole distance is 25-30cm, and the drilling depth is more than 0.3m of the main blast hole depth;

[0036] S6 control and protection of individual flying objects in breaking: water bags combined with stemming are used to plug the blast holes, the plugging length of the blast hole is not less than the minimum resistance line or the row distance, and the plugging quality is ensured; three-dimensional protection measures are taken, when the depth of the flat roadway excavation is within 10m, sandbags or water bags must be stacked at the entrance of the flat roadway to reduce the air shock wave, when the flat roadway excavation starts, all blast holes must be covered with flexible materials or blast mats, and the quality is ensured, the vertical shaft cover method is: a vertical shaft cover is made of section steel, and the rigidity meets the construction requirements, the cover is provided with a construction opening; a layer of steel mesh is arranged on the cover during breaking, and 2-3 layers of sandbags are densely laid on the steel mesh, each sandbag is not less than 25kg, the sandbags are covered with dense-mesh nylon net, and each blast hole is covered with flexible materials or blast mats, the thickness of the flexible material cover layer is 30-50cm, when the flexible material is a sack, at least 3 layers of wet sacks are covered and connected into one, to prevent being thrown out during breaking, then a bamboo splint is pressed on the flexible material or blast mat cover, and weights are added to the two ends of the bamboo splint.

[0037] In this example, the breaking engineering parameters are as follows: the breaking rock is medium weathered hard rock, the Protodyakonov firmness coefficient f value is 8-12, the joint, bedding and fracture development is general, the engineering target is to excavate a horizontal flat roadway with a length of 240m in the rock mass, the breaking rock is 1200m 3 , and the whole large rock needs to be broken when the working shaft is excavated, the total amount of breaking rock is 3000m3 The working well has a diameter of 9 m and a depth of 10 m, and the surrounding environment of the breaking engineering is as follows: there is a sidewalk above the engineering ground, and the sidewalk is provided with urban facilities such as electric wires, cables and water pipes below 3 m and above the sidewalk, and the nearest distance between the breaking point and the protected facilities on the roadside is about 15 m.

[0038] Example Two:

[0039] In the well and roadway breaking parameter and excitation network step, the slotting hole has a hole depth of 1.1 m, 11 holes, 6 empty holes, a hole distance of 150 mm, and a single hole charge of 0.45 kg; the peripheral hole has a hole depth of 1 m, 9 holes, a single hole charge of 0.3 kg, the auxiliary hole has a hole depth of 1 m, 9 holes, a hole distance of 0.6 m, a hole row distance of 0.55 m, and a single hole charge of 0.3 kg; the filling is blocked by a water bag combined with a clay stemming, after charging, a water bag with a length of 20-30 cm is first filled, then the blast hole is filled with clay stemming, and the detonating tube must be protected during blocking; the excitation network is a cluster connection force excitation, and the excitation is implemented by hole or several holes in a section, the slotting hole is excited first, then the auxiliary hole, and finally the peripheral blast hole, and the excitation charge of each section is not greater than 1.3 kg.

[0040] Example Three:

[0041] In the shaft driving breaking parameter and excitation network step, the slotting hole has a hole depth of 1.3 m, 13 holes, 6 empty holes, a hole distance of 150 mm, and a single hole charge of 0.6 kg; the peripheral hole has a hole depth of 1.2 m, 60 holes, a single hole charge of 0.3 kg; in the shaft driving breaking parameter and excitation network step, the auxiliary hole has a hole depth of 1.2 m, 80 holes, a hole distance of 0.9 m, a row distance of 0.85 m, and a single hole charge of 0.45 kg; the filling is blocked by a water bag combined with a clay stemming, and no blocking excitation is prohibited; in the shaft driving breaking parameter and excitation network step, the excitation network is a millisecond delay detonating tube excitation network, MS15 is used in the hole, MS5 is used outside the hole, the excitation is implemented by hole or several holes in a section, and the excitation charge of each section is not greater than 1.0 kg.

[0042] Although the embodiments of the present patent have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present patent, and the scope of the present patent is defined by the appended claims and their equivalents.

Claims

1. A method of breaking up dust in a complex environment, characterized by: The breaking engineering parameters are as follows: the broken rock stratum is medium weathered hard rock, the Protodyakonov's firmness coefficient f value is 8-12, the joint, bedding and fracture development is general, the engineering target is to excavate a horizontal roadway with a length of 240m in the rock mass, and the broken rock is 1200m 3 , and the whole large rock needs to be broken when the working well is excavated, the total amount of broken rock is 3000m 3 , the working well has a diameter of 9m and a depth of 10m; The surrounding environment of the breaking engineering is as follows: there is a sidewalk above the engineering ground, and the sidewalk is below 3m and above 3m, and there are electric wires, cables, water pipes and other urban facilities, and the nearest distance between the breaking point and the facilities needing protection is 15m; The method comprises the following steps: S1: breaking environment analysis: according to the geological conditions of the rock mass, the engineering progress and the engineering requirements, the excavation is carried out by adopting the complex environment control breaking, fine breaking and water medium conversion breaking technology of the town, the cross section of the roadway driving is a three-center arch, the full-face breaking excavation mode is adopted, and the step-by-step excavation mode is adopted in the shaft driving breaking, a free surface is created by using the mixed cutting, then the blast holes are arranged according to a certain circle diameter, the network is excited by using the cluster connection force detonating cord, the hole-by-hole or several-hole segmented delay excitation is implemented, and the breaking design is optimized according to the test explosion and vibration monitoring results; S2 tunnel fracturing parameters and activation network: Hole diameter 40mm, total 29 holes, including 6 uncharged holes and 23 charged holes. The fracturing agent consumption is determined to be 2.4 kg / m³ based on the rock firmness coefficient and cross-sectional area, consulted tables, and engineering experience. 3 The total crushing dose per cycle is 9.65 kg, and the crushing volume per cycle is 3.22 m³. 3 ; S3 shaft driving breaking parameters and excitation network: blast hole diameter 40 mm, hole number 153, among which 6 holes are empty, 147 holes are charged, the breaking agent unit consumption is determined according to the quota standard and engineering experience, the breaking agent unit consumption of the peripheral hole is 0.3 kg / m 3 , the breaking agent unit consumption of the auxiliary hole is 0.5 kg / m 3 , the average charging coefficient of the cut hole is 0.65, the total breaking agent amount of each cycle is 58.2 kg, and the breaking discharge amount of each cycle is 63.59 m 3 ; S4: control of the maximum single shot explosive quantity: according to the terrain and geological conditions of the project and the tunnel engineering practice, the breaking vibration is calculated according to the Sadowsky empirical formula, K=100 and α=1.5 are taken, the vibration velocity of the protection object is taken as v=2cm / s, the nearest distance between the shaft and roadway driving breaking operation area and the protection object is 15m, the nearest distance between the shaft driving breaking operation area and the protection object is 14m, and the maximum single segment excitation explosive quantity is 1.35kg and 1.098kg respectively, so the single shot explosive quantity must be controlled to be less than 1.3kg and 1kg respectively; S5: breaking monitoring: the objects needing protection of the project are various civil buildings beside the road, the breaking vibration velocity must be controlled to be less than 2cm / s, when the breaking vibration velocity is close to or greater than 2cm / s, the maximum single shot explosive quantity must be further reduced or the dense shock absorption holes are drilled on the edge of the breaking area excavation surface to reduce the shock, the hole distance is 25-30cm, and the drilling depth is more than 0.3m of the main blast hole depth; S6: control and protection of individual flying objects in breaking: the water bag combined with the stemming of the blast hole is adopted, the stemming length of the blast hole is ensured to be not less than the minimum resistance line or the row distance, and the stemming quality is ensured; the three-dimensional protection measures are adopted, when the roadway driving depth is less than 10m, the sand bags or water bags must be stacked at the entrance of the roadway to reduce the air shock wave, when the roadway driving breaking starts, the blast holes must be covered with flexible materials or the blast hole is covered with the blast cover, and the quality is ensured, the shaft cover method is that the shaft cover is made of profile steel and the rigidity meets the construction requirements, the shaft cover is provided with the construction opening, a layer of steel mesh is arranged on the shaft cover during the breaking, and 2-3 layers of sand bags are densely laid on the steel mesh, each sand bag is not less than 25kg, the sand bags are covered with the dense mesh nylon net, meanwhile, each blast hole is covered with the flexible material or the blast cover, the thickness of the flexible material covering layer is 30-50cm, when the hessian bag is used for covering, at least 3 layers of wet hessian bags are covered and connected into a whole to prevent being thrown out during the breaking, then the bamboo clamps are pressed on the flexible material or the blast cover, and the weights are added at the two ends of the bamboo clamps.

2. The method of claim 1, wherein: In the step of the shaft and gallery breaking parameter and excitation network, the slotting hole has a hole depth of 1.1 m, 11 holes, 6 empty holes, a hole distance of 150 mm, and a single hole charge of 0.45 kg; the peripheral hole has a hole depth of 1 m, 9 holes, and a single hole charge of 0.3 kg.

3. The method of claim 2, wherein: In the step of the shaft and gallery breaking parameter and excitation network, the auxiliary hole has a hole depth of 1 m, 9 holes, a hole distance of 0.6 m, a hole row distance of 0.55 m, and a single hole charge of 0.3 kg. The hole is blocked by using a water bag combined with stemming, after charging, a water bag with a length of 20-30 cm is first filled, then the blast hole is filled with clay stemming, and the detonating tube must be protected during blocking.

4. The method of claim 3, wherein: In the step of the shaft and gallery breaking parameter and excitation network, the excitation network adopts cluster connection force excitation, and realizes hole-by-hole or several-hole segmented delay excitation, the slotting hole is excited first, then the auxiliary hole, and finally the peripheral blast hole, and the excitation charge of each section is not greater than 1.3 kg.

5. The method of claim 4, wherein: In the step of the shaft and gallery breaking parameter and excitation network, the slotting hole has a hole depth of 1.3 m, 13 holes, 6 empty holes, a hole distance of 150 mm, and a single hole charge of 0.6 kg; the peripheral hole has a hole depth of 1.2 m, 60 holes, and a single hole charge of 0.3 kg.

6. The method of claim 5, wherein: In the step of the shaft and gallery breaking parameter and excitation network, the auxiliary hole has a hole depth of 1.2 m, 80 holes, a hole distance of 0.9 m, a row distance of 0.85 m, and a single hole charge of 0.45 kg. The hole is blocked by using a water bag combined with stemming, and no blocking excitation is prohibited.

7. The method of claim 6, wherein: In the step of the shaft and gallery breaking parameter and excitation network, the excitation network adopts a millisecond delay detonating tube excitation network, MS15 is used in the hole, MS5 is used outside the hole, hole-by-hole or several-hole segmented delay excitation is realized, and the excitation charge of each section is not greater than 1.0 kg.