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1. 发明专利

LU502697B1 INTELLIGENT PREDICTION METHOD AND SYSTEM FOR GROUND PRESSURE DISASTERS OF WALL ROCK AFFECTED BY MINING 未知
公开(公告)号：LU502697B1
公开(公告)日：2022-10-14
申请号：LU502697
申请日：2020-04-23
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： LV XIANG FENG
IPC分类号： G06N20/00 , E21F17/00 , E21F17/18 , G06F30/27 , G06F119/14
摘要： Provided are an intelligent prediction method and system for ground pressure disasters of wall rock (1) affected by mining, relating to the technical field of the prediction and prevention of ground pressure disasters due to deep mining. The method comprises the following steps: S1: providing a sensor in wall rock (1) affected by mining in order to acquire wall rock data; S2: constructing a stress-strain curve by using the acquired wall rock data, and extracting data before a wall rock stress reaches a stress limit to serve as pre-peak data, and data after the wall rock stress reaches the stress limit to serve as post-peak data; S3: substituting consecutive pre-peak data or post-peak data, within a period of time, into a machine learning model to perform impending disaster warning, so as to obtain a preliminary prediction result; S4: evaluating the preliminary prediction result on the basis of a wall rock instability theory and external environment information to obtain an evaluation result; and S5: completing final disaster decision-making according to the evaluation result. In this way, the preliminary prediction for ground pressure disasters can be completed by means of machine learning model, and the prediction result is verified according to a certain standard and model, such that both excellent accuracy and practicability are provided.

2. 发明专利

LU502696B1 ROADWAY OR TUNNEL SURROUNDING ROCK SHIELDING PROTECTION STRUCTURE AND METHOD 未知
公开(公告)号：LU502696B1
公开(公告)日：2022-10-14
申请号：LU502696
申请日：2020-04-23
申请人： UNIV BEIJING SCIENCE & TECHNOLOGY
发明人： LV XIANG FENG
IPC分类号： E21D11/00 , E21D11/10
摘要： Disclosed in the present disclosure are a roadway or tunnel surrounding rock shielding protection structure and method. Under the action of ground pressure, a bare surrounding rock is formed after a roadway or tunnel is formed by tunneling. The present disclosure provides a multilayer combined shielding protection structure and method. A special shielding layer is constructed by spraying a special shielding material; a fine bamboo concrete layer is constructed by pouring fine bamboo concrete; and energy absorption controllers are provided to construct an energy absorption control layer and a bracket in a shape of Chinese character ' ' constructed by a steel pipe bracket is erected. The roadway or tunnel surrounding rock shielding protection structure constructed by a multilayer protection structure achieves a good supporting protection effect on the bare surrounding rock of the roadway or tunnel, can effectively shield the damage from impact stress waves, and achieves a remarkable toughness and energy absorption effect on impact energy. The energy absorption controllers and the bracket in the shape of Chinese character ' ' can further absorb residual energy to prevent the roadway or tunnel from being damaged by impact, so that the safety of the roadway or tunnel can be effectively protected.

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