本文選題：邊坡 + 深孔位移監(jiān)測��； 參考：《西南科技大學》2015年碩士論文

【摘要】：邊坡失穩(wěn)屬于自然災害中最常見的災害之一,往往會造成巨大的經(jīng)濟損失,甚至導致人員傷亡。據(jù)國土資源部統(tǒng)計：2014年全國發(fā)生的邊坡問題占地質災害總數(shù)的96.6%。綿陽繞城高速公路與綿三路交叉處邊坡自開挖,一直處于變形之中,該邊坡的變形導致其上跨橋梁兩岸橋臺擋塊、臺帽與橋臺背墻交界處出現(xiàn)開裂,部分T梁與橋臺背墻產(chǎn)生擠壓,大部分支座發(fā)生順橋向的剪切變形。本文采用全站儀自由設站法對該邊坡進行坡面水平位移監(jiān)測,利用滑動式測斜儀對該邊坡深部位移進行監(jiān)測,得出該邊坡屬于淺層蠕變滑坡,可能存在滑動面大致深度在11m-12m。應用全站儀對上跨橋梁構件進行變形監(jiān)測,得出橋梁目前處于設計變形范圍內(nèi),并為避免邊坡持續(xù)變形對橋梁造成安全影響對邊坡采用抗滑樁進行了加固處理。通過監(jiān)測加固后的邊坡發(fā)現(xiàn),邊坡累計位移已趨于收斂,邊坡處治效果明顯。
[Abstract]:Slope instability is one of the most common disasters in natural disasters, which often results in huge economic losses and even casualties. According to the statistics of the Ministry of Land and Resources: the slope problems occurred in 2014 accounted for 96. 6% of the total number of geological disasters. The slope excavation at the intersection of Mianyang Expressway and Mianyang three roads is always in the process of deformation. The deformation of the slope leads to the cracking at the junction of abutment cap and abutment back wall between the abutment cap and abutment back wall and the block of abutment on both sides of the bridge. Some T-beams and abutment back walls are squeezed, and most of the supports are shearing deformation along the bridge. In this paper, the total station free station method is used to monitor the horizontal displacement of the slope, and the sliding inclinometer is used to monitor the deep displacement of the slope. It is concluded that the slope belongs to a shallow creep landslide, and that there may be a sliding surface in the depth of 11m-12m. The total station is used to monitor the deformation of the members of the upper span bridge, and it is concluded that the bridge is currently in the range of design deformation, and in order to avoid the safety impact caused by the continuous deformation of the slope, the anti-slide pile is adopted to reinforce the slope. It is found by monitoring and strengthening that the cumulative displacement of the slope has converged and the effect of slope treatment is obvious.
【學位授予單位】：西南科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U416.14

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本文編號：1961272