Experimental Analysis of Pressure Relief Effect of Surrounding Rock in High-Stress Roadways under Different Drilling Parameters

钻孔 钻探 半径 覆岩压力 岩土工程 深孔钻探 地质学 材料科学 压力(语言学) 机械 计算机安全 计算机科学 语言学 物理 哲学 冶金
作者
Ping Wang,Yongzhi Jiang,Peng Li,Jinlian Zhou,Ze Zhou
出处
期刊:Applied sciences [MDPI AG]
卷期号:13 (4): 2511-2511 被引量:9
标识
DOI:10.3390/app13042511
摘要

Drilling to relieve pressure is a simple and efficient solution to prevent impact ground pressure for the engineering problem of the high risk of impact on the surrounding rock of high stress roads, and choosing suitable drilling parameters is the key to it. The unloading law of borehole diameter, depth, and spacing was investigated using a combination of indoor tests, numerical simulations, and theoretical analysis. The characteristics of crack extension and plastic zone changes of the three were analyzed, and the relationship between boreholes and elastic strain energy was derived by developing a hole mechanics model. The findings indicate that as drilling radius and depth are increased, peak strength and the elastic strain energy stored in front of the peak decrease, the plastic zone around the hole and the main control crack on the surface of the block expand more obviously, and the vertical stress at the top and bottom of the hole decrease, and the peak stress increases with the depth of the hole. The plastic zone surrounding the hole is attached to one another more easily the closer the drilling spacing is. The test block is changed from independent damage to penetrating damage when the drilling spacing is less than or equal to 3.286 cm. However, the pressure release effect does not necessarily improve with narrower drilling spacing. The plastic zone radius and the elastic strain energy held in the rock body are linked to each other linearly and quadratically, respectively, by the drilling radius. The joint pressure relief of several holes should be prioritized when drilling pressure is relieved, and then the hole’s diameter should be increased, and, finally, the hole’s depth should be increased. A reference for engineering applications is provided by this.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
天天快乐应助jia采纳,获得30
刚刚
LPPQBB应助Esther采纳,获得100
1秒前
鱼鱼也有发布了新的文献求助10
1秒前
所所应助想瘦的海豹采纳,获得10
1秒前
2秒前
2秒前
橙子发布了新的文献求助10
2秒前
2秒前
英吉利25发布了新的文献求助10
3秒前
Tenten完成签到,获得积分10
4秒前
祝愿完成签到,获得积分10
4秒前
5秒前
王小乔发布了新的文献求助10
5秒前
高山流水完成签到,获得积分10
5秒前
慌慌发布了新的文献求助10
5秒前
王铭轩发布了新的文献求助30
6秒前
852应助xuxingjie采纳,获得100
6秒前
caixukun完成签到 ,获得积分10
7秒前
失眠煎饼发布了新的文献求助10
7秒前
皇文军完成签到,获得积分10
7秒前
石翎完成签到,获得积分10
8秒前
标致的以筠完成签到,获得积分20
8秒前
9秒前
10秒前
科研通AI6应助hhhc采纳,获得10
11秒前
小二郎应助min17采纳,获得10
11秒前
科目三应助zcm采纳,获得10
12秒前
LPPQBB应助Esther采纳,获得100
13秒前
13秒前
14秒前
14秒前
风中冰香应助鲜艳的遥采纳,获得10
14秒前
16秒前
超级李包包完成签到,获得积分10
16秒前
17秒前
专注鼠标发布了新的文献求助10
17秒前
seven发布了新的文献求助10
17秒前
18秒前
19秒前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
Holistic Discourse Analysis 600
Vertébrés continentaux du Crétacé supérieur de Provence (Sud-Est de la France) 600
Routledge Handbook on Spaces of Mental Health and Wellbeing 500
Elle ou lui ? Histoire des transsexuels en France 500
FUNDAMENTAL STUDY OF ADAPTIVE CONTROL SYSTEMS 500
Nanoelectronics and Information Technology: Advanced Electronic Materials and Novel Devices 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 物理化学 基因 遗传学 催化作用 冶金 量子力学 光电子学
热门帖子
关注 科研通微信公众号,转发送积分 5320015
求助须知:如何正确求助?哪些是违规求助? 4461987
关于积分的说明 13885224
捐赠科研通 4352699
什么是DOI,文献DOI怎么找? 2390804
邀请新用户注册赠送积分活动 1384435
关于科研通互助平台的介绍 1354258