搜索优化
English
搜索
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按时间排序
按相关度排序
腾讯网
1 天
洞室围岩脆性破坏程度预测 | 祁生文等-JRMGE
随着地下工程向活动构造区和深部进军,地应力逐渐增高,工程开挖引起应力重分布在开挖面附近形成强烈应力集中,容易引发坚硬围岩中储存应变能的突然释放,造成片帮、岩爆等脆性破坏,给高应力地区地下工程安全建设运维带来挑战。经典岩石力学常常基于实验室测得的单轴抗 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Trump ending intel briefings
2 charged in fatal stabbing
41 killed in MX bus accident
Has no plans to buy TikTok
Trump amends CBS lawsuit
How to watch Super Bowl
All 10 victims recovered
Makes broadcasting return
Quake strikes Caribbean Sea
NIH cuts billions in funds
Former NFL head coach dies
Wins world downhill gold
CFPB's new acting head
Sues neo-Nazi group
Lebanon forms new govt.
Recall 140,000+ vehicles
US plans arms sale to Israel
NASCAR Hall of Fame 2025
Sentenced to time served
Weekend winter storm
Head of NARA dismissed
X faces probe in France
Sheriff deputy found guilty
Drops Jake Paul fight
Hamas releases 3 hostages
Halts aid to South Africa
Named FIU interim president
2nd recipient of pig kidney
To settle tip theft lawsuit
DOJ won't release names
Oldest rhino in the US dies
'Annie Hall' star dies
Donut products recalled
反馈