CN112253136A - Intelligent excavation method for large-section tunnel of high-speed railway - Google Patents
Intelligent excavation method for large-section tunnel of high-speed railway Download PDFInfo
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- CN112253136A CN112253136A CN202011166059.XA CN202011166059A CN112253136A CN 112253136 A CN112253136 A CN 112253136A CN 202011166059 A CN202011166059 A CN 202011166059A CN 112253136 A CN112253136 A CN 112253136A
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000011435 rock Substances 0.000 claims abstract description 76
- 238000005422 blasting Methods 0.000 claims abstract description 46
- 238000005553 drilling Methods 0.000 claims abstract description 45
- 238000010276 construction Methods 0.000 claims abstract description 41
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000002360 explosive Substances 0.000 claims description 55
- 239000000839 emulsion Substances 0.000 claims description 32
- 238000010586 diagram Methods 0.000 claims description 9
- 239000000314 lubricant Substances 0.000 claims description 9
- 238000013461 design Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 230000005641 tunneling Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 238000012549 training Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000013277 forecasting method Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to the technical field of tunnel excavation, in particular to an intelligent excavation construction method for a large-section tunnel of a high-speed railway. An intelligent excavation method for a large-section tunnel of a high-speed railway comprises the following steps: s1, advance geological forecast and intelligent surrounding rock grading; s2, sealing the tunnel face and supporting in advance; s3, positioning a trolley; s4, retesting by a total station; s5, drilling by the drill jumbo: determining blast hole arrangement according to the surrounding rock intelligent classification, and determining peripheral hole construction according to the surrounding rock intelligent classification; s6, intelligent charging; s7, blasting; s8, blasting effect checking: construction measurement; designing drilling and blasting, and adjusting blasting parameters; and S9, primary support. Compared with the traditional construction method, the construction method has the advantages of low cost, high efficiency, high mechanization degree, good blasting effect, high safety and the like. The method is mainly applied to the intelligent excavation of the large-section tunnel.
Description
Technical Field
The invention relates to the technical field of tunnel excavation, in particular to an intelligent excavation construction method for a large-section tunnel of a high-speed railway.
Background
In the prior art, a soft surrounding rock section in tunnel construction is usually constructed by a step method, and the construction method adopts manual hole drilling and manual charging to realize long circulating operation time and large construction period pressure. Along with the rapid expansion of the building market scale, the mechanized construction level of the tunnel is continuously improved, the hydraulic drill jumbo is also continuously popularized in the drilling and blasting construction of the large-section tunnel, but the hydraulic drill jumbo can only realize the mechanized construction of the drilling operation, other procedures such as charging and the like still adopt the traditional manual operation, and the mechanized construction of the whole procedure of the excavation operation is not really realized.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an intelligent excavation construction method for a high-speed railway large-section tunnel, which comprises the steps of intelligently identifying excavated surrounding rocks and grading the surrounding rocks by a full-computer three-arm rock drilling trolley with a tunnel face refining identification system, drilling holes by using the full-computer three-arm rock drilling trolley, and mechanically charging by using bulk emulsion explosive, so that the quick and efficient mechanical construction of the whole working procedure of excavation operation is realized.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an intelligent excavation method for a large-section tunnel of a high-speed railway comprises the following steps:
s1, advance geological forecast and intelligent surrounding rock grading;
s2, sealing the tunnel face and supporting in advance;
s3, positioning a trolley;
s4, retesting by a total station;
s5, drilling by the drill jumbo: determining blast hole arrangement according to the surrounding rock intelligent classification, and determining peripheral hole construction according to the surrounding rock intelligent classification;
s6, intelligent charging;
s7, blasting;
s8, blasting effect checking: construction measurement; designing drilling and blasting, and adjusting blasting parameters;
and S9, primary support.
In the step S1, the advance geological forecast is to intelligently identify and grade the surrounding rock conditions revealed by excavation according to the conventional advance geological forecast result and by combining with the rock drilling jumbo tunnel face refined identification and surrounding rock grading system before each cycle of excavation, and adjust the blasting parameters according to the surrounding rock grading result.
In the step S1, the surrounding rock is classified, and the measurement parameters while drilling are matched with the actual surrounding rock conditions of the geological survey data to form a sample library of intelligent surrounding rock identification, the data is preprocessed and feature extracted, model training and testing are performed on the preprocessed input features and the surrounding rock level labels, and an intelligent surrounding rock identification model is established.
In the step S5, the blasthole arrangement adopts a fully-computerized three-arm drill jumbo to drill holes, different blasthole arrangement diagrams and excavation circulation footage are led into a computer end according to different surrounding rock grades, the system intelligently identifies the corresponding blasthole arrangement form and the parameters such as the depth of each blasthole according to the tunnel face classification result, the blasthole arrangement diagrams for circular excavation are automatically formed, and the field dynamic adjustment of each circulation blasting parameter is realized.
In the step S5, peripheral hole construction adopts a peripheral blasthole arrangement method suitable for drilling blasting excavation of the rock drilling jumbo, a long and short hole combined drilling mode is adopted, an overexcavation value is reduced, circumferential distances between the long holes and the short holes are arranged in a staggered mode according to 1/2 of peripheral hole distances designed according to drilling blasting, radial projection distances between the long holes and the short holes are generally 0.3-0.4 times of the long hole tunneling length according to the structural size of a mechanical arm of the rock drilling jumbo, and drilling control parameters of different surrounding rock levels are introduced into a computer end according to the primary support design thickness, the excavation depth, the primary support and the face distance of different surrounding rock levels.
In the step S6, the explosive is mechanically charged by bulk emulsion explosive, the process of charging the bulk emulsion explosive mainly comprises emulsion explosive and lubricant, the lubricant is pumped out by a lubricant pump, enters a pipeline with the emulsion explosive through a water ring resistance reducing device, is conveyed in layers together, passes through a tail end spray head and is conveyed into a blast hole.
During construction, hydraulic power is provided for the explosive loading trolley, the explosive loading pipeline is conveyed to the bottom of a hole through the pipe conveying device, the emulsion explosive is pressed into a blast hole through a hydraulic system according to a preset speed, and meanwhile, the pipe conveying device adjusts the linear explosive loading density by controlling the pipe withdrawing speed according to the single-hole explosive loading amount and the linear explosive loading density under the condition that the pumping efficiency is not changed, so that the emulsion explosive is accurately and quickly installed.
The intelligent medicine loading construction steps comprise:
(1) respectively setting the single-hole dosage and the linear density of a cutting hole, an auxiliary hole, a bottom plate hole and peripheral holes according to the single-hole dosage and the diameter of a blast hole in blasting design and the type of the blast hole, and inputting the single-hole dosage and the linear density into a control system;
(2) conveying the medicine loader to a working surface, and connecting a power and hydraulic system of the drill jumbo;
(3) connecting the pipeline with a pipe feeder, cleaning the lubricating pipeline, and debugging;
(4) adding emulsion explosive into the storage tank to prepare for charging;
(5) loading the detonator reversely into a common emulsion explosive before charging, putting the common emulsion explosive into an orifice, conveying the common emulsion explosive to the bottom of the orifice through a control system and a pipe conveyor, selecting a corresponding blast hole type to begin to withdraw and charge, and repeating the contents to charge the next hole after the completion;
(6) and after charging, cleaning the pipeline, and performing online blasting.
Compared with the prior art, the invention has the beneficial effects that:
on the basis of a conventional advanced geological forecasting method, a rock drilling trolley with a tunnel face refining identification system is adopted to intelligently identify and grade surrounding rocks disclosed by each excavation cycle; a reasonable blast hole arrangement structure is adopted according to the intelligent identification and classification conditions of the surrounding rock, so that the advanced excavation caused by unreasonable arrangement of the blast holes is reduced; the method makes up the blank that other working procedures in the drilling and blasting tunneling of the long tunnel in China are mechanized except that the charging working procedure is still manually operated at present; the whole process of charging is in mechanized and intelligent construction, charging parameters can be set in a computer system, the operating conditions of workers are improved, the labor intensity is reduced, the face operating personnel are reduced, and the operating time is shortened. And each construction circulation system automatically generates a charging log, the charging coefficient can be dynamically optimized according to the advanced excavation result after blasting, and compared with the traditional construction method, the large-section intelligent excavation construction method has the advantages of low cost, high efficiency, high mechanization degree, good blasting effect, high safety and the like.
Drawings
FIG. 1 is a schematic view of the construction process of the present invention;
FIG. 2 is a diagram of arrangement of blast holes of class III wall rock according to the present invention;
FIG. 3 is a diagram of arrangement of blast holes of IV-grade surrounding rocks in the invention;
FIG. 4 is a diagram of arrangement of V-level surrounding rock blastholes in the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the intelligent excavation method for the large-section tunnel of the high-speed railway comprises the following steps:
s1, advance geological forecast and intelligent surrounding rock grading;
s2, sealing the tunnel face and supporting in advance;
s3, positioning a trolley;
s4, retesting by a total station;
s5, drilling by the drill jumbo: determining blast hole arrangement according to the surrounding rock intelligent classification, and determining peripheral hole construction according to the surrounding rock intelligent classification;
s6, intelligent charging;
s7, blasting;
s8, blasting effect checking: construction measurement; designing drilling and blasting, and adjusting blasting parameters;
and S9, primary support.
Preferably, in step S1, advance geological forecast is enhanced during construction, a special construction scheme is made, the advance geological forecast is managed in the construction process, a perfect advance geological forecast system is established, the advance geological forecast is performed before each cycle of excavation according to the conventional advance geological forecast result and by combining with the rock drilling trolley tunnel face fine identification and surrounding rock grading system, the surrounding rock condition revealed by excavation is intelligently identified and graded, and the blasting parameters are adjusted according to the surrounding rock grading result.
Preferably, in step S1, a tunnel face imaging module is installed on the intelligent rock drilling rig, tunnel face image information, a two-dimensional image identifying occurrence information, the number of structural face groups, and the inclination angle condition are acquired by using a rock drilling machine sensor and cameras on both sides of a cab, the tunnel face image information, the two-dimensional image identifying occurrence information, the number of structural face groups, and the inclination angle condition are transmitted to an intelligent interconnected equipment cooperative management platform through a network in a tunnel, surrounding rock grading is matched with the actual surrounding rock condition of geological survey data through measurement parameters while drilling to form a surrounding rock intelligent identification sample library, data are preprocessed and feature extracted, model training and testing are performed on preprocessed input features and surrounding rock grade labels, a surrounding rock intelligent identification model is established, information such as occurrence, inclination angle, number of joint groups, and the like of a tunnel face is acquired through uploading and intelligent identification of the two-dimensional image, and the category of surrounding rock is quickly selected through the information system.
Preferably, in step S5, the blasthole arrangement is performed by using a fully computerized three-arm drill jumbo for drilling, since blasting is affected by various factors including geological factors such as the strength, integrity, joint, bedding and the like of surrounding rocks, the geological structure of the surrounding rocks on site is varied, the blasting parameters are dynamically adjusted on site design, different blasthole arrangement diagrams and excavation circulation footage are led into the computer end according to different levels of the surrounding rocks, the system selects parameters such as corresponding blasthole arrangement forms and various blasthole depths according to the tunnel face intelligent identification and the surrounding rock classification results, the blasthole arrangement diagrams are automatically formed, and the dynamic adjustment of each circulation blasting parameter on site is realized. The arrangement of blastholes of different surrounding rock levels is shown in figures 2, 3 and 4.
Preferably, in step S5, the peripheral hole construction adopts a peripheral blasthole arrangement method suitable for drilling blasting excavation by a rock drilling jumbo, and adopts a long and short hole combined drilling mode to reduce the overexcavation value, wherein the circumferential distances between the long holes and the short holes are arranged in a staggered manner according to 1/2 of the peripheral hole distance designed by drilling blasting, the radial projection distances between the long holes and the short holes are generally 0.3 to 0.4 times of the long hole tunneling length according to the structural size of a mechanical arm of the rock drilling jumbo, and meanwhile, drilling control parameters at different surrounding rock levels are introduced at a computer end according to the initial support design thickness, the excavation advance scale, the initial support and the face distance at different surrounding rock levels, and specific data are shown in table 1.
TABLE 1
Preferably, in step S6, the powder is mechanically loaded with bulk emulsion explosive, the bulk emulsion explosive loading process mainly includes emulsion explosive and lubricant, the lubricant is pumped out by a lubricant pump, enters a pipeline with emulsion explosive through a water ring resistance reducing device, is transported in layers, passes through a tail end nozzle, and is transported into the blast hole.
Preferably, during construction, the drill jumbo provides hydraulic power for the explosive loading pipeline, the explosive loading pipeline is conveyed to the bottom of a hole through the pipe conveying device, the emulsion explosive is pressed into a blast hole through a hydraulic system at a preset speed, and meanwhile, the pipe conveying device adjusts the linear explosive loading density by controlling the pipe withdrawing speed according to the single-hole explosive loading amount and the linear explosive loading density under the condition that the pumping efficiency is not changed, so that the emulsion explosive is accurately and quickly installed.
Preferably, the intelligent chemical loading construction step comprises the following steps:
(1) respectively setting the single-hole dosage and the linear density of a cutting hole, an auxiliary hole, a bottom plate hole and peripheral holes according to the single-hole dosage and the diameter of a blast hole in blasting design and the type of the blast hole, and inputting the single-hole dosage and the linear density into a control system;
(2) conveying the medicine loader to a working surface, and connecting a power and hydraulic system of the drill jumbo;
(3) connecting the pipeline with a pipe feeder, cleaning the lubricating pipeline, and debugging;
(4) adding emulsion explosive into the storage tank to prepare for charging;
(5) loading the detonator reversely into a common emulsion explosive before charging, putting the common emulsion explosive into an orifice, conveying the common emulsion explosive to the bottom of the orifice through a control system and a pipe conveyor, selecting a corresponding blast hole type to begin to withdraw and charge, and repeating the contents to charge the next hole after the completion;
(6) and after charging, cleaning the pipeline, and performing online blasting.
When charging, attention is required: setting various blast holes in advance according to blasting design parameters, strictly controlling charging according to the types of the blast holes during charging, adopting the same parameters as much as possible for the same type of blast holes, distinguishing different parameters, and carrying out number matching during charging; the utilization rate of explosive is improved by adopting coupled explosive charging for the slotted holes, and the disturbance to surrounding rock is reduced by adopting non-coupled uniform explosive charging for the peripheral holes, so that the light explosion effect is improved; cleaning holes according to requirements before charging, so as to avoid pipe clamping in the charging process; during charging, the charging is carried out in a partitioned and partitioned manner, and the blast holes of the same type are concentrated into one charging as much as possible, so that the phenomenon that the replacement back and forth is easy to make mistakes and the blasting effect is influenced is avoided; the peripheral holes are not coupled for charging, and the charging is carried out by adopting a pipeline with a pipe conveyer so as to avoid the influence on the blasting effect caused by uneven manual pipe feeding and charging.
On the basis of conventional advanced geological forecast, the construction method utilizes a full-computer three-arm drilling trolley refined identification system to intelligently identify and grade surrounding rocks of the tunnel face revealed by each excavation cycle. And automatically adjusting and optimizing blasting parameters during drilling of the drill jumbo according to the surrounding rock grading result. The intelligent explosive loading machine is adopted for mechanically loading the bulk emulsion explosive, and the cut hole and the auxiliary hole adopt a full-coupling continuous loading structure, namely, the blast hole is completely filled with the explosive, so that the influence of the groove effect is eliminated, and the blasting effect is improved; the peripheral holes adopt a non-coupling continuous charging structure according to the rock performance, namely, under the condition that the pumping efficiency is unchanged, the linear charging density of the peripheral holes is reduced by accelerating the pipe withdrawal speed, so that the explosive energy is more uniformly released, and the problem of over excavation caused by nonuniform charging can be effectively reduced
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (8)
1. The intelligent excavation construction method for the high-speed railway large-section tunnel is characterized by comprising the following steps of:
s1, advance geological forecast and intelligent surrounding rock grading;
s2, sealing the tunnel face and supporting in advance;
s3, positioning a trolley;
s4, retesting by a total station;
s5, drilling by the drill jumbo: determining blast hole arrangement according to the surrounding rock intelligent classification, and determining peripheral hole construction according to the surrounding rock intelligent classification;
s6, intelligent charging;
s7, blasting;
s8, blasting effect checking: construction measurement; designing drilling and blasting, and adjusting blasting parameters;
and S9, primary support.
2. The intelligent excavation method for the high-speed railway large-section tunnel according to claim 1, characterized in that: in the step S1, the advance geological forecast is to intelligently identify and grade the surrounding rock conditions revealed by excavation according to the conventional advance geological forecast result and by combining with the rock drilling jumbo tunnel face refined identification and surrounding rock grading system before each cycle of excavation, and adjust the blasting parameters according to the surrounding rock grading result.
3. The intelligent excavation method for the high-speed railway large-section tunnel according to claim 1, characterized in that: in the step S1, the surrounding rock is classified, and the measurement parameters while drilling are matched with the actual surrounding rock conditions of the geological survey data to form a sample library of intelligent surrounding rock identification, the data is preprocessed and feature extracted, model training and testing are performed on the preprocessed input features and the surrounding rock level labels, and an intelligent surrounding rock identification model is established.
4. The intelligent excavation method for the high-speed railway large-section tunnel according to claim 1, characterized in that: in the step S5, the blasthole arrangement adopts a fully-computerized three-arm drill jumbo to drill holes, different blasthole arrangement diagrams and excavation circulation footage are led into a computer end according to different surrounding rock grades, the system intelligently identifies the corresponding blasthole arrangement form and the parameters such as the depth of each blasthole according to the tunnel face classification result, the blasthole arrangement diagrams for circular excavation are automatically formed, and the field dynamic adjustment of each circulation blasting parameter is realized.
5. The intelligent excavation method for the high-speed railway large-section tunnel according to claim 1, characterized in that: in the step S5, peripheral hole construction adopts a peripheral blasthole arrangement method suitable for drilling blasting excavation of the rock drilling jumbo, a long and short hole combined drilling mode is adopted, an overexcavation value is reduced, circumferential distances between the long holes and the short holes are arranged in a staggered mode according to 1/2 of peripheral hole distances designed according to drilling blasting, radial projection distances between the long holes and the short holes are generally 0.3-0.4 times of the long hole tunneling length according to the structural size of a mechanical arm of the rock drilling jumbo, and drilling control parameters of different surrounding rock levels are introduced into a computer end according to the primary support design thickness, the excavation depth, the primary support and the face distance of different surrounding rock levels.
6. The intelligent excavation method for the high-speed railway large-section tunnel according to claim 1, characterized in that: in the step S6, the explosive is mechanically charged by bulk emulsion explosive, the process of charging the bulk emulsion explosive mainly comprises emulsion explosive and lubricant, the lubricant is pumped out by a lubricant pump, enters a pipeline with the emulsion explosive through a water ring resistance reducing device, is conveyed in layers together, passes through a tail end spray head and is conveyed into a blast hole.
7. The intelligent excavation method for the high-speed railway large-section tunnel according to claim 6, characterized in that: during construction, hydraulic power is provided for the explosive loading trolley, the explosive loading pipeline is conveyed to the bottom of a hole through the pipe conveying device, the emulsion explosive is pressed into a blast hole through a hydraulic system according to a preset speed, and meanwhile, the pipe conveying device adjusts the linear explosive loading density by controlling the pipe withdrawing speed according to the single-hole explosive loading amount and the linear explosive loading density under the condition that the pumping efficiency is not changed, so that the emulsion explosive is accurately and quickly installed.
8. The intelligent excavation construction method for the high-speed railway large-section tunnel according to claim 1, wherein the intelligent charging construction step comprises the following steps:
respectively setting the single-hole dosage and the linear density of a cutting hole, an auxiliary hole, a bottom plate hole and peripheral holes according to the single-hole dosage and the diameter of a blast hole in blasting design and the type of the blast hole, and inputting the single-hole dosage and the linear density into a control system;
conveying the medicine loader to a working surface, and connecting a power and hydraulic system of the drill jumbo;
connecting the pipeline with a pipe feeder, cleaning the lubricating pipeline, and debugging;
adding emulsion explosive into the storage tank to prepare for charging;
loading the detonator reversely into a common emulsion explosive before charging, putting the common emulsion explosive into an orifice, conveying the common emulsion explosive to the bottom of the orifice through a control system and a pipe conveyor, selecting a corresponding blast hole type to begin to withdraw and charge, and repeating the contents to charge the next hole after the completion;
and after charging, cleaning the pipeline, and performing online blasting.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878981A (en) * | 2021-01-28 | 2021-06-01 | 中国矿业大学 | Control system and control method of drill jumbo |
| CN114352300A (en) * | 2021-12-07 | 2022-04-15 | 江苏徐工工程机械研究院有限公司 | Digital drilling and blasting excavation system and excavation method |
| CN115111982A (en) * | 2022-05-27 | 2022-09-27 | 中铁工程装备集团隧道设备制造有限公司 | A powder charge platform truck and system for tunnel drilling and blasting method construction |
| CN116975623A (en) * | 2023-05-04 | 2023-10-31 | 西南交通大学 | Method, device and medium for predicting large deformation grade in tunnel construction stage by drilling and blasting method |
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| 王志坚: "高速铁路山岭隧道智能化建造技术研究——以郑万高速铁路湖北段为例", 《铁道学报》 * |
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| CN112878981A (en) * | 2021-01-28 | 2021-06-01 | 中国矿业大学 | Control system and control method of drill jumbo |
| CN114352300A (en) * | 2021-12-07 | 2022-04-15 | 江苏徐工工程机械研究院有限公司 | Digital drilling and blasting excavation system and excavation method |
| CN114352300B (en) * | 2021-12-07 | 2024-02-02 | 江苏徐工工程机械研究院有限公司 | Digital drilling and blasting excavation system and excavation method |
| CN115111982A (en) * | 2022-05-27 | 2022-09-27 | 中铁工程装备集团隧道设备制造有限公司 | A powder charge platform truck and system for tunnel drilling and blasting method construction |
| CN116975623A (en) * | 2023-05-04 | 2023-10-31 | 西南交通大学 | Method, device and medium for predicting large deformation grade in tunnel construction stage by drilling and blasting method |
| CN116975623B (en) * | 2023-05-04 | 2024-01-30 | 西南交通大学 | Method, device and medium for predicting large deformation grade in tunnel construction stage by drilling and blasting method |
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