本文選題：抗滑樁 + 隧道��； 參考：《西南交通大學(xué)》2014年碩士論文

【摘要】：在山區(qū)修建鐵路、公路時往往難以避免地要穿越滑坡地帶。因抗滑能力強,適用范圍廣,抗滑樁在滑坡治理中的應(yīng)用很普遍。隧道滑坡的抗滑樁設(shè)計主要采用普通抗滑樁的設(shè)計方法,沒有考慮隧道開挖對抗滑樁受力及變形的影響以及滑坡對隧道的影響,這是不合理的。本文對隧道滑坡的抗滑樁設(shè)計計算方法進(jìn)行研究,主要研究內(nèi)容及成果包括： 1.對國內(nèi)用抗滑樁加固隧道滑坡的工程實例進(jìn)行總結(jié)分析。 2.利用數(shù)值分析手段,采用單因子變量法對不同情況下抗滑樁的受力及變形分布情況進(jìn)行對比分析總結(jié),變量主要包括樁隧間距、滑體土的種類、樁頂埋深、嵌固深度以及樁身剛度。 3.對樁頂位移與隧道結(jié)構(gòu)位移的相互關(guān)系進(jìn)行研究,以確定合理的樁頂位移控制值。對不同樁隧間距下、不同類型抗滑樁作用下隧道結(jié)構(gòu)的受力及位移進(jìn)行研究,明確抗滑樁的作用機(jī)理。 4.利用數(shù)值分析手段對滑坡剩余推力的傳遞進(jìn)行模擬計算,并與傳遞系數(shù)法所得滑坡剩余推力進(jìn)行比較,結(jié)果表明傳遞系數(shù)法在計算滑坡推力方面可以滿足工程實際要求 5.在傳遞系數(shù)法的基礎(chǔ)上,提出了一種計算滑體位移的簡化方法,可以估算滑體以及位于滑體中的建筑物的位移。 6.在上述工作的基礎(chǔ)上,探討隧道滑坡的抗滑樁設(shè)計計算方法。
[Abstract]:When building a railway in a mountainous area, it is often unavoidable to cross the landslide zone. Because of its strong anti-slide ability and wide application range, anti-slide pile is widely used in landslide treatment. The anti-slide pile design of tunnel landslide mainly adopts the design method of ordinary anti-slide pile. It is unreasonable to consider the influence of force and deformation of anti-slide pile in tunnel excavation and the influence of landslide on tunnel. In this paper, the design and calculation method of anti-slide pile for tunnel landslide is studied. The main research contents and results are as follows: 1. This paper summarizes and analyzes the engineering example of strengthening tunnel landslide with anti-slide pile in China. 2. By means of numerical analysis, the stress and deformation distribution of anti-slide pile under different conditions are analyzed and summarized by single factor variable method. The variables mainly include the spacing of pile and tunnel, the type of sliding soil, the depth of pile top, and so on. Embedded depth and pile stiffness. 3. The relationship between pile top displacement and tunnel structure displacement is studied in order to determine the reasonable control value of pile top displacement. The stress and displacement of tunnel structure under the action of different pile spacing and different types of anti-slide pile are studied, and the mechanism of anti-slide pile is clarified. 4. The transfer of landslide residual thrust is simulated by numerical analysis method and compared with that obtained by transfer coefficient method. The results show that the transfer coefficient method can meet the practical engineering requirements in the calculation of landslide thrust. 5. Based on the transfer coefficient method, a simplified method for calculating the displacement of the sliding body is proposed, which can estimate the displacement of the sliding body and the building located in the sliding body. 6. On the basis of above work, the design and calculation method of anti-slide pile for tunnel landslide is discussed.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U452.11;U457

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