本文選題：連續(xù)樁鍵結(jié)構(gòu) + 抗滑機(jī)制��； 參考：《巖土力學(xué)》2014年09期

【摘要】：連續(xù)樁鍵是一種新型抗滑結(jié)構(gòu),結(jié)合了阻滑鍵和抗滑樁結(jié)構(gòu)型式的綜合功能。采用二維FLAC程序?qū)B續(xù)樁鍵結(jié)構(gòu)與滑坡的作用效應(yīng)進(jìn)行了數(shù)值模擬。分析表明,結(jié)構(gòu)的內(nèi)在抗滑機(jī)制主要體現(xiàn)于有效減小滑帶區(qū)域的剪切變形量、降低塑性區(qū)的發(fā)展程度、阻滯滑坡體的整體位移、調(diào)動(dòng)滑體區(qū)域的巖土體抗力等方面,而其外在抗滑機(jī)制則對(duì)應(yīng)于結(jié)構(gòu)能有效加固設(shè)置區(qū)域巖土體和充分發(fā)揮整體抗滑支擋這兩種作用�？傮w上結(jié)構(gòu)處于剪切、彎曲和拉壓的復(fù)雜受力狀態(tài),內(nèi)力變形連續(xù)分布且均衡,相當(dāng)于整體協(xié)調(diào)受力的連續(xù)剛架體系,其抗滑效果更加明顯,并表現(xiàn)出良好的工作狀態(tài)。連續(xù)樁鍵結(jié)構(gòu)克服了單體結(jié)構(gòu)的應(yīng)用局限問題,而更充分發(fā)揮了對(duì)滑坡體的加固阻滑效果,顯著提高了滑坡體的整體穩(wěn)定安全裕度,對(duì)滑坡治理工程有更廣泛的適用性,已被成功應(yīng)用于三峽庫區(qū)最復(fù)雜的地質(zhì)災(zāi)害治理項(xiàng)目——猴子石滑坡治理工程,取得了良好的治理效果。
[Abstract]:Continuous pile key is a new type of anti-slide structure, which combines the function of anti-slide key and anti-slide pile structure. The effect of continuous pile bond structure on landslide is numerically simulated by using two dimensional FLAC program. The analysis shows that the inherent anti-slide mechanism of the structure is mainly reflected in the following aspects: effectively reducing the shear deformation in the slip zone, reducing the development of the plastic zone, blocking the overall displacement of the landslide body, and mobilizing the resistance of the rock and soil in the sliding zone, etc. The external anti-slide mechanism corresponds to the two functions of the structure which can effectively strengthen and set up the regional rock and soil and give full play to the overall anti-slide support. On the whole, the structure is in the complex state of shear, bending and tension and compression, and the internal force and deformation are distributed continuously and equably, which is equivalent to the whole coordinated force, and the anti-slide effect is more obvious, and it shows a good working state. The continuous pile bond structure overcomes the application limitation of the single structure, and gives full play to the effect of the landslide body reinforcement and skid resistance, improves the overall stability and safety margin of the landslide body, and has wider applicability to the landslide treatment project. It has been successfully applied to the most complex geological disaster control project in the three Gorges Reservoir area, the Monkey Rock landslide treatment Project, which has achieved good control effect.
【作者單位】： 長江勘測(cè)規(guī)劃設(shè)計(jì)研究院;中國科學(xué)院武漢巖土力學(xué)研究所巖土力學(xué)與工程國家重點(diǎn)試驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(No.10872210)
【分類號(hào)】：TU473.1

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