CN-122015596-A - High-energy low-loss blasting control system and method for large-section tunnel

CN122015596ACN 122015596 ACN122015596 ACN 122015596ACN-122015596-A

Abstract

The application discloses a high-energy low-loss blasting control system and a method for a large-section tunnel, which relate to the technical field of blasting control, convert two dynamic variables of construction errors and geological heterogeneity into unified quality influence quantization indexes through accurate analysis of geometric deviation of drilling holes and in-situ quantization of rock mass breaking degree, improve the input dimension and accuracy foundation of a blasting effect prediction model, the method comprises the steps of carrying out single-hole dynamic block prediction and vibration influence prediction by a Sadawski formula through an integrated Cotzz-lamb model, outputting two quantization parameters of expected effect and safety constraint in parallel on the dimension of a single drill hole, carrying out comprehensive analysis on the results of single-hole quality influence, broken block effect prediction and safety prediction, automatically judging the blasting quality of each drill hole, and timely sending early warning information to related personnel, so that the on-site personnel have sufficient time to remedy, and the overall blasting quality is ensured.

Inventors

JING XINGDONG
WANG JIANFENG
BAI ZHIHAO
CHENG HUAHUA
YU XIAO
ZHANG SHENGJUN
FANG YETING
ZHAO DONGYIN
QIU RUI
GUO HONGWEI
SUN RUIFENG
Han Sanping
WANG XINGGUANG
HE ZHENG
WEI YONGCHENG
LIU ANDONG

Assignees

中铁十七局集团城市建设有限公司
中铁十七局集团有限公司

Dates

Publication Date: 20260512
Application Date: 20251224

Claims (9)

1. The high-energy low-loss blasting control method for the large-section tunnel is characterized by comprising the following steps of: S1, acquiring real-time operation condition data, drilling design condition data and single-hole charging condition data of a drilling jumbo during drilling; s2, analyzing each drilling deviation condition based on real-time operation condition data and each drilling design condition data when the drilling trolley drills; s3, carrying out influence analysis on the drilling quality based on the analysis result of each drilling deviation condition and the drilling section condition data when the drilling trolley drills; s4, carrying out prediction analysis on the blasting conditions of each drilling hole according to the analysis result of the influence of the quality of each drilling hole, the design condition data of each drilling hole and the single-hole charging condition data; S5, judging the blasting quality of each drilling hole according to the impact prediction analysis result of the blasting quality of each drilling hole, and sending the judgment result to related personnel for processing.
2. The method for controlling high-energy low-loss blasting in a large-section tunnel according to claim 1, wherein S2 comprises the specific steps of analyzing each drilling deviation condition according to single-hole real-time deviation vector data, hole center point vector data, actually measured drilling azimuth angle data, inclination angle data, hole bottom design coordinate data and hole depth design value data when a drilling trolley drills, wherein each drilling deviation condition analysis process is to calculate drilling deviation vectors corresponding to each drilling when the drilling trolley drills, convert each calculated drilling deviation vector into a module length corresponding to each drilling deviation vector, divide the module length corresponding to each drilling deviation vector by an allowable deviation module length, quantify each drilling deviation condition, and take each drilling deviation condition as each drilling deviation condition analysis result.
3. The method for controlling high-energy low-loss blasting for a large-section tunnel according to claim 2, wherein the step S3 comprises the specific steps of obtaining analysis results of deviation conditions of each drilling hole, group data of drilling structure surfaces when the drilling trolley drills holes and average distance data of each group of structure surfaces, calculating volume rational numbers corresponding to each drilling hole according to the group data of the drilling structure surfaces when the drilling trolley drills holes and the average distance data of each group of structure surfaces, dividing the volume rational numbers corresponding to each drilling hole by a reference volume rational number, quantifying rock breaking degrees corresponding to each drilling hole, weighting and adding the rock breaking degrees corresponding to each drilling hole and the deviation condition analysis results, and obtaining analysis results of influence of each drilling hole quality.
4. The method for controlling high-energy low-loss blasting in a large-section tunnel according to claim 3, wherein the specific step of S4 is: S41, obtaining a predictive analysis result of the crushing block degree of each drilling hole according to the single-hole burden volume data and the single-hole drug loading data; S42, obtaining a predicted analysis result of the impact of each drilling explosion vibration according to the maximum loading data of the single hole and the average distance data between the hole center and the hole center of the adjacent hole; s43, performing prediction analysis on the blasting quality influence of each drilling hole according to the prediction analysis result of the crushing block degree of each drilling hole, the prediction analysis result of the blasting vibration influence and the analysis result of the quality influence.
5. The method for high energy low loss blasting control for large section tunnels of claim 4, wherein the step S41 comprises performing predictive analysis of each borehole breaking block according to single hole burden volume data and single hole loading capacity data, wherein the calculation formula of predictive analysis of the ith borehole breaking block is: , the volume is burdened for the single hole corresponding to the ith borehole, The single hole loading capacity corresponding to the ith drilling hole, A is the rock coefficient corresponding to the drilling hole, The average block size of the rock is burdened with a reference single hole.
6. The method for controlling high-energy low-loss blasting in a large-section tunnel according to claim 5, wherein the step S42 comprises the specific steps of performing each drilling blasting vibration influence prediction analysis according to the maximum single-hole loading data and the average distance data between the hole center and the adjacent hole center, wherein the ith drilling blasting vibration influence prediction analysis formula is as follows: , for the maximum loading corresponding to the ith borehole, For the average distance between the ith drilling hole center and the adjacent hole center, To allow the vibration velocity of the vibration wave, b is the damping index, and K is the medium transmission efficiency.
7. The method for high-energy low-loss blasting control for a large-section tunnel of claim 6, wherein the step S43 comprises the specific steps of obtaining a predictive analysis result of the crushing block degree of each drill hole, a predictive analysis result of the impact of the blasting vibration and a quality impact analysis result, weighting and adding the predictive analysis result of the crushing block degree of each drill hole and the predictive analysis result of the impact of the blasting vibration to obtain a predictive analysis result of the blasting quality of each drill hole, and multiplying the predictive analysis result of the blasting quality of each drill hole by the quality impact analysis result to obtain a predictive analysis result of the impact of the blasting quality of each drill hole.
8. The method for controlling high-energy low-loss blasting in a large-section tunnel according to claim 7, wherein the step S5 comprises the specific steps of obtaining each drilling-hole blasting-quality-influence prediction analysis result, comparing each drilling-hole blasting-quality-influence prediction analysis result with a set blasting-quality-influence prediction analysis result threshold, judging that the drilling-hole blasting quality is unqualified if the drilling-hole blasting-quality-influence prediction analysis result is greater than or equal to the set blasting-quality-influence-prediction analysis result threshold, and judging that the drilling-hole blasting quality is qualified if the drilling-hole blasting-quality-influence-prediction analysis result is smaller than the set blasting-quality-influence-prediction analysis result threshold.
9. The high-energy low-loss blasting control system for the large-section tunnel is realized based on the high-energy low-loss blasting control method for the large-section tunnel according to any one of claims 1 to 8, and is characterized by specifically comprising a blasting analysis data acquisition module, a drilling deviation condition analysis module, a drilling quality influence analysis module, a drilling blasting condition prediction module and a drilling blasting quality judgment module, wherein the blasting analysis data acquisition module is used for acquiring real-time operation condition data, drilling design condition data and single-hole charging condition data of a drilling trolley during drilling; the drilling deviation condition analysis module is used for carrying out drilling deviation condition analysis on the basis of real-time operation condition data and drilling design condition data when the drill jumbo drills; the drilling quality influence analysis module is used for carrying out drilling quality influence analysis on the basis of the drilling deviation condition analysis results and the drilling section condition data when the drilling trolley drills; the drilling and blasting condition prediction module is used for performing prediction analysis on each drilling and blasting condition according to each drilling quality influence analysis result, each drilling design condition data and single-hole charging condition data; And the drilling explosion quality judging module is used for judging the explosion quality of each drilling according to the analysis result of the influence prediction of the explosion quality of each drilling, and sending the judgment result to related personnel for processing.

Description

High-energy low-loss blasting control system and method for large-section tunnel Technical Field The application belongs to the field of blasting control, and particularly relates to a high-energy low-loss blasting control system and method for a large-section tunnel. Background In geotechnical engineering blasting operations such as mining and tunneling, the final blasting effect is affected by various factors, the current technology mainly relies on the experience of blasting designers to carry out overall scheme design and adjusts subsequent schemes through result evaluation after blasting, and the mode has the following remarkable defects: 1. At present, key feedforward information influencing the blasting effect is not systematically collected, quantized and included in a blasting effect prediction model in real time, so that the prediction and actual situation have larger deviation; 2. in the prior art, crushing block prediction and blasting vibration safety check are usually carried out respectively, the crushing effect and the safety risk are difficult to balance on a single-hole level in the separation evaluation mode, and the optimization of fine and personalized hole network parameters and the loading capacity cannot be realized; 3. In the existing flow, the judgment of potential problems (for example, the increase of the mass rate or the excessive vibration caused by the excessive loading capacity of a certain area possibly caused by the overlarge drilling deviation) is often found even when the problems occur after blasting, the whole decision process lacks forward-looking intelligent early warning and analysis support based on real-time data driving, and the active control of blasting quality is difficult to realize, and the application designs a high-energy low-loss blasting control system and method for a large-section tunnel in order to solve the problems proposed by the background technology. Disclosure of Invention Aiming at the technical defects, the application provides a high-energy low-loss blasting control system and method for a large-section tunnel. In order to solve the technical problems, the application adopts the following technical scheme that the application provides a high-energy low-loss blasting control method for a large-section tunnel, which comprises the following specific steps: S1, acquiring real-time operation condition data, drilling design condition data and single-hole charging condition data of a drilling jumbo during drilling; s2, analyzing each drilling deviation condition based on real-time operation condition data and each drilling design condition data when the drilling trolley drills; s3, carrying out influence analysis on the drilling quality based on the analysis result of each drilling deviation condition and the drilling section condition data when the drilling trolley drills; s4, carrying out prediction analysis on the blasting conditions of each drilling hole according to the analysis result of the influence of the quality of each drilling hole, the design condition data of each drilling hole and the single-hole charging condition data; S5, judging the blasting quality of each drilling hole according to the impact prediction analysis result of the blasting quality of each drilling hole, and sending the judgment result to related personnel for processing. The preferred technical scheme of the high-energy low-loss blasting control method for the large-section tunnel is that the specific steps of the S1 are as follows: S11, acquiring real-time operation condition data of the drilling trolley during drilling through a drilling structure surface image, a high-precision positioning system of the drilling trolley, an inertial measurement unit and an inclination sensor, wherein the real-time operation condition data of the drilling trolley during drilling comprises drilling structure surface group data, average interval data of each group of structure surfaces, single-hole real-time deviation vector data, orifice center point vector data, actually measured drilling azimuth angle data, inclination data and average distance data between a hole center and an adjacent hole center; S12, acquiring drilling design condition data through a blasting design report, wherein the drilling design condition data comprises single-hole burden volume data, hole bottom design coordinate data and hole depth design value data; s13, acquiring single-hole charge condition data through a blasting design instruction book, wherein the single-hole charge condition data comprise single-hole maximum charge quantity data and single-hole charge quantity data. The S2 comprises the specific steps of analyzing each drilling deviation condition according to single-hole real-time deviation vector data, hole center point vector data, actually measured drilling azimuth angle data, inclination angle data, hole bottom design coordinate data and hole depth design value data when a drilling trolley d