發(fā)布時(shí)間：2018-01-05 15:33

  本文關(guān)鍵詞：山區(qū)機(jī)場(chǎng)高填方質(zhì)量控制與工后沉降預(yù)測(cè)研究　出處：《山東大學(xué)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 高填方 塊度分布 質(zhì)量控制 沉降預(yù)測(cè) 系統(tǒng)開(kāi)發(fā)

【摘要】：近年來(lái),我國(guó)航空業(yè)高速發(fā)展,旅游、交通、軍事和物流等領(lǐng)域的眾多需求,促使山區(qū)機(jī)場(chǎng)建設(shè)日益增多,這些機(jī)場(chǎng)建設(shè)過(guò)程中削山填溝、挖土爆破,各種形式的大型填方體也隨之產(chǎn)生,承德機(jī)場(chǎng)建設(shè)過(guò)程中便施工完成了高度達(dá)到115.8m的高大填方體,機(jī)場(chǎng)高填方的形成帶來(lái)新的工程技術(shù)問(wèn)題和理論革新,其中復(fù)雜填筑料的填筑質(zhì)量控制和大型邊坡體的沉降監(jiān)測(cè)預(yù)測(cè)成為機(jī)場(chǎng)高填方研究的兩個(gè)重要方向。本文針對(duì)承德山區(qū)機(jī)場(chǎng)高填方施工過(guò)程中和工后沉降數(shù)據(jù)分析中涉及的理論和技術(shù)問(wèn)題,通過(guò)填料物理力學(xué)特性試驗(yàn)、塊度統(tǒng)計(jì)規(guī)律挖掘、填筑質(zhì)量保證措施分類(lèi)、爆破參數(shù)優(yōu)化、GIS質(zhì)量數(shù)據(jù)空間分析、工后沉降預(yù)測(cè)方法理論研究和監(jiān)測(cè)預(yù)測(cè)預(yù)警系統(tǒng)軟件開(kāi)發(fā)等途徑,開(kāi)展了以下幾個(gè)方面的研究:(1)填筑體填料界定和物理特性研究。通過(guò)對(duì)現(xiàn)行規(guī)范進(jìn)行對(duì)比研究,結(jié)合現(xiàn)場(chǎng)填料的級(jí)配數(shù)據(jù)和對(duì)填料骨架粒徑的分析,對(duì)承德機(jī)場(chǎng)高填方土石料依照物質(zhì)組成和堆填方式進(jìn)行了標(biāo)準(zhǔn)化命名。對(duì)挖方區(qū)土和巖石分別進(jìn)行基本物理力學(xué)參數(shù)試驗(yàn),得到土和巖石的力學(xué)特征。(2)大石塊分布律挖掘和基于圖像分析的塊度統(tǒng)計(jì)。大石塊大量存在是承德機(jī)場(chǎng)填筑層區(qū)別于普通填筑體的重要特征,對(duì)最大粒徑進(jìn)行了分布律研究;對(duì)于人工塊度統(tǒng)計(jì)的缺點(diǎn),通過(guò)隨機(jī)截距法配合單圖片法,進(jìn)行圖像識(shí)別,實(shí)現(xiàn)了自動(dòng)塊度統(tǒng)計(jì)。(3)填方質(zhì)量控制指標(biāo)和措施分類(lèi)和填料塊度優(yōu)化。對(duì)填方體質(zhì)量控制指標(biāo)進(jìn)行了分類(lèi)研究,對(duì)比不同指標(biāo)的異同,提出合理適用的控制標(biāo)準(zhǔn);現(xiàn)場(chǎng)通過(guò)改進(jìn)爆破參數(shù)優(yōu)化了巖堆塊度,提高了填料質(zhì)量。(4)填方體質(zhì)量數(shù)據(jù)立體時(shí)空分析。分析了空間點(diǎn)數(shù)據(jù)的價(jià)值探索方式,綜合利用ARC Map和ARC Sence對(duì)干密度、含水量等數(shù)據(jù)進(jìn)行了時(shí)空分析,體現(xiàn)了填筑施工、氣候條件等因素與填筑質(zhì)量數(shù)據(jù)的規(guī)律性關(guān)系。(5)工后沉降監(jiān)測(cè)和預(yù)測(cè)方法理論研究。在現(xiàn)場(chǎng)開(kāi)展填方體邊坡監(jiān)測(cè)、填方體內(nèi)部監(jiān)測(cè)和地表沉降監(jiān)測(cè),獲取了大量有價(jià)值的位移數(shù)據(jù)。從預(yù)測(cè)原理、計(jì)算方法、數(shù)據(jù)要求、輸出方式和局限性等方面對(duì)目前主流的工后沉降預(yù)測(cè)方法進(jìn)行了對(duì)比分析。(6)工后沉降監(jiān)測(cè)數(shù)據(jù)分析與預(yù)測(cè)對(duì)比。通過(guò)對(duì)工后沉降數(shù)據(jù)的研究發(fā)現(xiàn)了邊坡壓脹和降雨突降等現(xiàn)象,通過(guò)BP神經(jīng)網(wǎng)絡(luò)預(yù)測(cè)工后沉降,取得了較好的效果。(7)高填方沉降監(jiān)測(cè)管理和預(yù)測(cè)預(yù)警系統(tǒng)開(kāi)發(fā)。通過(guò)研究高填方工后沉降監(jiān)測(cè)和管理的需求分析,基于ArcGISEngine 10.2平臺(tái),采用C#編程語(yǔ)言開(kāi)發(fā)了承德機(jī)場(chǎng)高填方沉降監(jiān)測(cè)管理和預(yù)警系統(tǒng)。
[Abstract]:In recent years, the rapid development of China's aviation industry, tourism, transportation, military and logistics and other fields of numerous needs, promote the mountain airport construction is increasing, these airports in the process of cutting mountains and filling ditches, excavating blasting. Various forms of large fill body also emerged, Chengde Airport construction will be completed during the construction of the height of 115.8 m tall fill body. The formation of airport high fill brings new engineering technical problems and theoretical innovation. The quality control of complex filling materials and the settlement monitoring and prediction of large slope are two important directions in the research of airport high fill. In this paper, the settlement data of airport high fill in Chengde Mountain area during construction and after construction are divided into two important directions. The theoretical and technical problems involved in the analysis. Through stuffing physical and mechanical property test, statistic rule mining, filling quality assurance measures classification, blasting parameters optimization GIS quality data space analysis. The theoretical research of post-construction settlement prediction method and the development of software for monitoring, forecasting and warning system. The following aspects were studied: 1) the definition and physical properties of the filler. Through the comparative study of the current specifications, the gradation data of the field packing and the analysis of the particle size of the packing skeleton were analyzed. According to the material composition and the way of landfilling, the soil and stone of Chengde Airport are named standardized. The basic physical and mechanical parameters of soil and rock in excavated area are tested respectively. The mechanical characteristics of soil and rock are obtained. (2) large rock distribution law mining and block statistics based on image analysis. The existence of large rock mass is an important feature of Chengde airport filling layer which is different from ordinary filling body. The distribution law of the maximum particle size is studied. For the shortcomings of artificial block statistics, the random intercept method combined with single image method is used for image recognition. The quality control index and measure classification of filling and the optimization of packing size are realized. The quality control index of filling body is classified and studied, and the similarities and differences of different indexes are compared. Put forward the reasonable applicable control standard; Through the improvement of blasting parameters, the rock mass is optimized, and the packing mass is improved. 4) the three-dimensional space-time analysis of fill mass data is carried out, and the value exploration mode of spatial point data is analyzed. The data of dry density and water content are analyzed by ARC Map and ARC Sence. Theoretical study on the methods of monitoring and forecasting post-construction settlement of climatic conditions and other factors with filling quality data. Monitoring of filling slope, monitoring of internal part of fill and monitoring of surface subsidence are carried out in the field. Obtained a large number of valuable displacement data. From the prediction principles, calculation methods, data requirements. The main methods for prediction of post-construction settlement are compared and analyzed in terms of output mode and limitation. Analysis and comparison of post-construction settlement monitoring data. Through the research of post-construction settlement data, the phenomenon of slope pressure expansion and sudden fall of rainfall is found. The BP neural network is used to predict the settlement after construction, and a better result is obtained. The monitoring management of settlement of high fill and the development of forecasting and warning system are achieved. The requirement analysis of monitoring and management of settlement after construction of high fill is studied. Based on the platform of ArcGISEngine 10.2, the monitoring management and early warning system of settlement of high fill in Chengde Airport is developed by using C # programming language.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：V351.1

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