Pressure relief and surge prevention method and device, electronic device and storage medium
CN120701340BActive Publication Date: 2026-08-28CCTEG COAL MINING RES INST
Patent Information
- Application Number
- CN202510840519.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2045-06-20
AI Technical Summary
Technical Problem
[0005]为此,本申请的第一个目的在于提出一种卸压防冲,以解决顶板弱化程度不高、防治效能有限的问题
Benefits of technology
[0027]本申请提供的卸压防冲方法、装置、电子设备及存储介质,通过初始钻孔进行水力压裂,形成一次人造压裂缝网,实现区域大范围弱化,水力压裂之后,根据初始钻孔的钻孔深度确定探查孔的基准深度,基于该基准深度进行探查孔的实施,按照预设推进深度进行逐层推进,并在每层推进时检测出水量,根据出水量确定水力压裂效果,以确定出水力压裂效果不足的目标弱化区域,在目标弱化区域设置爆破孔进行二次爆破压裂,改变了厚硬覆岩的物理力学性质,降低了厚硬顶板的完整性和强度,促进了人造压裂缝网的二次扩展和贯通,增大了卸压弱化范围,提升了矿井高效生产的安全性。
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Figure CN120701340B_ABST
Abstract
The application provides a pressure relief and impact prevention method and device, electronic equipment and a storage medium, and relates to the technical field of safe coal mining. The pressure relief and impact prevention method comprises the following steps: obtaining the drilling depth of an initial drilling hole, wherein the initial drilling hole is used for hydraulic fracturing of a thick and hard roof stratum; determining the reference depth of a probe hole according to the drilling depth of the initial drilling hole; based on the reference depth, performing layer-by-layer advancement of the probe hole according to a preset advancement depth, and detecting water yield at each layer advancement; determining the hydraulic fracturing effect of the thick and hard roof stratum according to the water yield, and determining a target weakening area according to the hydraulic fracturing effect; arranging a blasting hole in the target weakening area, and performing blasting and fracturing based on the blasting hole; and the secondary expansion and penetration of the artificial fracture network are promoted, the pressure relief weakening range is increased, and the safety of efficient production of the mine is improved.
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Citation Information
Patent Citations
System and method for three-dimensionally preventing rock burst above and below coal mine
CN115788435A
Method for preventing rock bursts by means of active support reinforcement and active pressure relief
WO2019148788A1