微型樁加固堆積層膨脹土滑坡模型試驗(yàn)研究
[Abstract]:People have been trying to use a variety of methods to prevent and control landslide engineering, most of them are using traditional anti-slide pile, concrete frame beam, retaining wall and so on. With the development of disaster prevention and control technology, with its economic efficiency and good reinforcement effect, micro-piles are more and more used in the treatment of shallow layer landslides. After the "5.12" earthquake, The special landslide prevention and control of expansive soil in the south of Shaanxi province has attracted the attention of the engineering and academic circles. In the disaster treatment, the expansive soil landslide strengthened by micro-piles has been widely used, and good results and economic benefits have been obtained. At present, many scholars have made some achievements in studying the mechanism of accumulation landslide and its micro-pile reinforcement, which has promoted the development of micro-pile technology, but there are few literatures on the mechanism of micro-pile-reinforced expansive soil accumulation landslide. It has not yet formed a set of mature reinforcement technical specifications, which has restricted the popularization and application of micro-pile technology. Therefore, it is of great theoretical and practical significance to study the mechanism of expansive soil landslide strengthened by micro-pile and put forward the corresponding design principle and design system. Model test is an important way to study micro-pile and reinforcement technology. Based on the similarity theory, the experiment was carried out in a framework of 1200mm 脳 1200mm 脳 1000mm. Using expansive soil collected from the actual project of Maojiagou village in Mian County, southern Shaanxi Province, as a model material, the model test was carried out. The rainfall and evaporation of nature were simulated by self-made sprinkler and drying device, and the top of slope was loaded evenly. During the test, pile spacing, pile row distance, anchoring depth and tie-in beam were used as variables, and were divided into six groups according to different research purposes. More than 20000 groups of data of different working conditions, different positions and different time stages were obtained by real-time measurement of pre-embedded earth pressure boxes, strain gauges and displacement sensors. The main conclusions are as follows: pile spacing (8 / 10) d (d as pile diameter), row spacing (5 / 10) d, anchoring depth D (L / 3 / D / 2 L / 5 (L = length of pile) are suitable for pile spacing, (5 / 10) d for pile spacing and (5 / 10) d for row spacing, and L / 3 / D / 2 L / 5 (L for pile length), respectively. When the soil arch effect is the best, the pile spacing is (8? 10) d. In this paper, a series of research on micro-pile is carried out through model test, and the mechanism of micro-pile strengthening pile with expansive soil is analyzed, and some design principles of micro-pile are put forward. It plays an important role in the research and technical application of micro-pile strengthening expansive soil accumulation landslide. Due to the limitation of working time and technical means, there are still some deficiencies and defects in material similarity, sensor use and data acquisition, which should be improved in the future research work.
【學(xué)位授予單位】:西安工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2013
【分類號】:TU443;TU753.8
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 高翔;微型樁設(shè)計(jì)及施工[J];工程勘察;2003年06期
2 陳素青;微型樁在某廠房改建中的設(shè)計(jì)應(yīng)用[J];廣東土木與建筑;2004年12期
3 ;微型樁[J];巖土工程界;2006年08期
4 張振;;微型樁的構(gòu)造及施工工藝[J];中華建設(shè);2011年07期
5 鄭雷;;建筑物改造中微型樁基礎(chǔ)替換技術(shù)的應(yīng)用[J];科技風(fēng);2011年22期
6 閆金凱;殷躍平;馬娟;;滑坡防治獨(dú)立微型樁性狀的大型物理模型試驗(yàn)研究[J];水文地質(zhì)工程地質(zhì);2012年04期
7 吳璋;何坤;王增琪;田華光;;微型樁的被動(dòng)錨固作用機(jī)理[J];煤田地質(zhì)與勘探;2012年06期
8 胡明;雷用;李林;陳平;;微型樁計(jì)算方法研究綜述[J];重慶建筑;2012年12期
9 張瑛;何計(jì)彬;梁炯;李乾坤;;抗滑工程中微型樁工作機(jī)理研究現(xiàn)狀[J];甘肅水利水電技術(shù);2013年01期
10 徐小林;王全才;王浩;吳清;;排架式微型樁組合結(jié)構(gòu)受力分析[J];水土保持通報(bào);2013年01期
相關(guān)會(huì)議論文 前10條
1 丁光文;;微型樁處理滑坡的設(shè)計(jì)方法[A];湖北省土木建筑學(xué)會(huì)學(xué)術(shù)論文集(2000-2001年卷)[C];2002年
2 趙斌;劉國輝;;微型樁若干問題的探討[A];山東土木建筑學(xué)會(huì)建筑結(jié)構(gòu)專業(yè)委員會(huì)2008年學(xué)術(shù)年會(huì)論文集[C];2008年
3 戶巧梅;龔雯;張會(huì)明;;空間剛架微型樁體系加固邊坡的內(nèi)力初步探討[A];2011四川省水文、工程、環(huán)境地質(zhì)學(xué)術(shù)交流會(huì)論文集[C];2011年
4 李白;劉小麗;黃敏;;微型樁在基坑工程中的應(yīng)用與思考[A];2011年全國工程地質(zhì)學(xué)術(shù)年會(huì)論文集[C];2011年
5 孫書偉;朱本珍;馬惠民;;框架微型樁結(jié)構(gòu)抗滑特性的模型試驗(yàn)研究[A];第十一次全國巖石力學(xué)與工程學(xué)術(shù)大會(huì)論文集[C];2010年
6 孫劍平;陳啟輝;尹燕池;田文寶;;微型樁在建筑物室內(nèi)增層改造中的應(yīng)用[A];第九屆全國結(jié)構(gòu)工程學(xué)術(shù)會(huì)議論文集第Ⅲ卷[C];2000年
7 陳仁朋;龔健;陳云敏;呂凡任;應(yīng)建國;程光明;;軟土地基中微型樁原型試驗(yàn)研究[A];中國土木工程學(xué)會(huì)第九屆土力學(xué)及巖土工程學(xué)術(shù)會(huì)議論文集(上冊)[C];2003年
8 王喚龍;周德培;肖維民;;微型樁組合結(jié)構(gòu)合理單元間距的探討[A];第六屆全國土木工程研究生學(xué)術(shù)論壇論文集[C];2008年
9 許珂;;微型樁施工工藝流程及操作方法[A];土木建筑學(xué)術(shù)文庫(第9卷)[C];2008年
10 肖國平;李金霞;孫文濤;刁魯明;王靜娣;;微型樁在高爐改造地基托換中的應(yīng)用[A];第十三屆全國結(jié)構(gòu)工程學(xué)術(shù)會(huì)議論文集(第Ⅰ冊)[C];2004年
相關(guān)重要報(bào)紙文章 前1條
1 劉津邋陳利;±800kV直流特高壓輸電線路微型樁基礎(chǔ)試驗(yàn)進(jìn)展順利[N];科技日報(bào);2007年
相關(guān)博士學(xué)位論文 前3條
1 王喚龍;微型樁組合抗滑結(jié)構(gòu)受力機(jī)理與防腐性研究[D];西南交通大學(xué);2011年
2 王樹豐;汶川地震滑坡微型樁防治工程研究[D];長安大學(xué);2010年
3 孫書偉;微型樁結(jié)構(gòu)加固邊坡受力機(jī)制和設(shè)計(jì)計(jì)算理論研究[D];中國鐵道科學(xué)研究院;2009年
相關(guān)碩士學(xué)位論文 前10條
1 石世剛;黃土滑坡中抗滑微型樁工作機(jī)理研究[D];西安建筑科技大學(xué);2015年
2 鄭振通;微型樁加固邊坡穩(wěn)定性分析方法對比研究[D];重慶交通大學(xué);2015年
3 范叩鑫;微型樁加固堆積層膨脹土滑坡模型試驗(yàn)研究[D];西安工業(yè)大學(xué);2013年
4 馬廷雷;微型樁組合抗滑結(jié)構(gòu)程序化設(shè)計(jì)[D];西南交通大學(xué);2012年
5 張益鋒;微型樁抗滑組合結(jié)構(gòu)受力分析[D];西南交通大學(xué);2011年
6 楊靜;微型樁加固邊坡的動(dòng)力響應(yīng)特征及抗震計(jì)算方法研究[D];西南交通大學(xué);2012年
7 王棟;微型樁抗滑結(jié)構(gòu)地震反應(yīng)分析[D];西南交通大學(xué);2014年
8 李燦旭;微型樁受力機(jī)理及應(yīng)用分析[D];重慶交通大學(xué);2014年
9 鮮飛;微型樁組合結(jié)構(gòu)模型試驗(yàn)研究[D];西南交通大學(xué);2010年
10 梁炯;滑坡災(zāi)害防治技術(shù)微型樁群樁物理模擬試驗(yàn)[D];長安大學(xué);2010年
,本文編號:2438750
本文鏈接:http://www.sikaile.net/kejilunwen/sgjslw/2438750.html