电力勘测设计
電力勘測設計
전력감측설계
ELECTRIC POWER SURVEY
2015年
z1期
20-25
,共6页
柯洪%赵春宏%王继华%谢佳能%段德磊%杨逢春
柯洪%趙春宏%王繼華%謝佳能%段德磊%楊逢春
가홍%조춘굉%왕계화%사가능%단덕뢰%양봉춘
原位剪切试验%Bishop法%边坡%稳定性
原位剪切試驗%Bishop法%邊坡%穩定性
원위전절시험%Bishop법%변파%은정성
situ shear test%Bishop method%slope%stability
紧邻变电站的高陡自然边坡经过人为作用形成多级高陡坎人工边坡,为了明确变电站的安全性,对人工边坡进行勘察,勘察试验方法主要采用大型原位剪切试验,试验得出关键土层的力学参数,并采用Bishop法分析人工边坡的稳定性,分析结果表明边坡深层位置处于稳定状态,但经过工程地质类比等方法定性分析表明边坡表层形成的高陡坎易发生滑塌,且部分已经发生滑塌,多级的高陡坎长期多次滑塌易引起浅层滑坡的产生,从而影响变电站的安全,因此人工边坡采用板肋式锚杆加坡脚挡墙支护技术的治理措施。
緊鄰變電站的高陡自然邊坡經過人為作用形成多級高陡坎人工邊坡,為瞭明確變電站的安全性,對人工邊坡進行勘察,勘察試驗方法主要採用大型原位剪切試驗,試驗得齣關鍵土層的力學參數,併採用Bishop法分析人工邊坡的穩定性,分析結果錶明邊坡深層位置處于穩定狀態,但經過工程地質類比等方法定性分析錶明邊坡錶層形成的高陡坎易髮生滑塌,且部分已經髮生滑塌,多級的高陡坎長期多次滑塌易引起淺層滑坡的產生,從而影響變電站的安全,因此人工邊坡採用闆肋式錨桿加坡腳擋牆支護技術的治理措施。
긴린변전참적고두자연변파경과인위작용형성다급고두감인공변파,위료명학변전참적안전성,대인공변파진행감찰,감찰시험방법주요채용대형원위전절시험,시험득출관건토층적역학삼수,병채용Bishop법분석인공변파적은정성,분석결과표명변파심층위치처우은정상태,단경과공정지질류비등방법정성분석표명변파표층형성적고두감역발생활탑,차부분이경발생활탑,다급적고두감장기다차활탑역인기천층활파적산생,종이영향변전참적안전,인차인공변파채용판륵식묘간가파각당장지호기술적치리조시。
The natural high-steep slope near the substation leads to the formation of multi-stage man-made slope through the human activities. In order to ensure the security of substation, we take the large situ shear test as our main test method to explore the man-made slope. We get the mechanical parameters of key soil layer after exploration. In addition, the stability of man-made slope is analyzed by BISHOP method. Based on the analysis results, the slope is overall stable. But after the qualitative analysis of man-made slope by using engineering geological analogy method, the result shows that the high-steep ridges formed on slope are easy to slump and part of them have already slumped. Multi-stage high-steep ridges after a long term slumping may cause the shallow landslide and compromise the security of substation as a result. Consequently, plate ifn type anchor rod and slope toe retaining wall support technology can be taken as the control measure to renovate the man-made slope.