本文關(guān)鍵詞： 銜接鋪砌式透水道面 力學(xué)聯(lián)動(dòng)效應(yīng) 變形協(xié)調(diào)效應(yīng) 浸水穩(wěn)定性 可靠性　出處：《中國民航大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：地勢平坦和開闊的機(jī)場停機(jī)坪為飛機(jī)安全滑行與可靠停放提供了良好的條件，傳統(tǒng)的機(jī)坪道面都是幾乎不透水的密實(shí)型結(jié)構(gòu)，這種密實(shí)的道面結(jié)構(gòu)在有效保證其強(qiáng)度和剛度的同時(shí)，其不透水性也帶來了暴雨時(shí)段易形成積水而影響機(jī)場運(yùn)行的問題，以及遠(yuǎn)機(jī)位飛機(jī)旅客涉水登機(jī)的問題。此外，大量的雨水被排放到場外，直接造成場區(qū)地表土壤水分不足而形成局部熱島效應(yīng)。因此，需要提高道面滲水性能來克服這些問題，以獲得改善機(jī)場運(yùn)行環(huán)境和節(jié)能減排的良好效果。 本課題以透水性道面結(jié)構(gòu)的可靠性為研究目標(biāo)，以銜接鋪砌式透水道面結(jié)構(gòu)體系為研究對象，基于理論分析、有限元數(shù)值分析和工程實(shí)體實(shí)驗(yàn)結(jié)果，研究不同土基與基層結(jié)構(gòu)對該透水性道面結(jié)構(gòu)穩(wěn)定性的影響規(guī)律。研究工作包括對不同砂土地基和碎石基層形式和含水狀態(tài)下的支承能力進(jìn)行了系列模擬分析和實(shí)驗(yàn)研究，分別針對3種不同平面尺寸、3種寬厚比、3種不同的加載位置、2種工況下的54種實(shí)驗(yàn)組合方式進(jìn)行了分析研究，基于銜接鋪砌式透水道面的力學(xué)聯(lián)動(dòng)效應(yīng)和變形協(xié)調(diào)效應(yīng)下的浸水穩(wěn)定性能分析，確定了不同組合透水板塊下的極限荷載、臨界荷位、臨界變形和最優(yōu)寬厚比。 有限元數(shù)值分析和工程實(shí)體實(shí)驗(yàn)研究的結(jié)果表明：使用砂土作為土基材料時(shí)，含砂率存在一個(gè)臨界值70%，大于該值時(shí)砂土具有較好的飽水穩(wěn)定性能，承載能力損失程度較��；優(yōu)化后的碎石級(jí)配區(qū)間為4.75-31.5mm，該區(qū)間骨料具有較高的強(qiáng)度和較好的滲透性能，，可以有效地提高道面結(jié)構(gòu)整體的承載能力；角部加載是銜接鋪砌式透水道面結(jié)構(gòu)最不利的加載位置，建議以角部作為鋪砌式透水道面設(shè)計(jì)的臨界荷位；平面尺寸為200mm、330mm和500mm的透水板塊均在寬厚比為4時(shí)，浸水后極限荷載和臨界變形的損失程度最小，具有較好的浸水可靠性和穩(wěn)定性；330-4組合的透水板塊道面結(jié)構(gòu)在飽水狀態(tài)下可以承受B737系列機(jī)型使用荷載停放要求。這些結(jié)論為新型銜接鋪砌式透水道面結(jié)構(gòu)在機(jī)坪結(jié)構(gòu)的設(shè)計(jì)與應(yīng)用提供了可靠的優(yōu)化參數(shù)和理論依據(jù)。
[Abstract]:The flat and open airport tarmac provides good conditions for the plane to glide safely and to park reliably. The traditional apron pavement is almost watertight and dense. While this dense pavement structure effectively guarantees its strength and stiffness, its impermeability also brings problems such as the formation of stagnant water during heavy rain and the problems affecting the operation of the airport, as well as the problem of wading through the water and boarding the aircraft from afar. A large number of Rain Water has been discharged out of the field, which directly results in a local heat island effect due to the lack of soil water in the field area. Therefore, it is necessary to improve the seepage performance of the pavement to overcome these problems. In order to improve the airport operating environment and energy saving and emission reduction good results. In this paper, the reliability of the permeable pavement structure is taken as the research goal, and the structure system of the connected paving permeable pavement is taken as the research object, based on the theoretical analysis, finite element numerical analysis and the experimental results of engineering entities. The influence of different soil foundation and base structure on the stability of the permeable pavement is studied. The research work includes a series of simulation analysis and experimental study on the bearing capacity of different sand foundation and gravel base under the condition of water content. In this paper, 54 experimental combinations of three different plane sizes, three width-thickness ratios, three different loading positions and two working conditions are analyzed and studied. Based on the analysis of the stability of immersion under the mechanical linkage effect and deformation coordination effect, the ultimate load, critical load, critical deformation and optimum width-thickness ratio under different combinations of permeable plates are determined. The results of finite element numerical analysis and engineering experiment show that when sand is used as soil foundation material, the sand content has a critical value of 70. When the sand content is larger than this value, the sand has better saturated and stable performance, and the loss of bearing capacity is small. The optimized gradation interval of crushed stone is 4.75-31.5mm. The aggregate of the section has higher strength and better permeability, which can effectively improve the bearing capacity of the whole pavement structure, and the corner loading is the most unfavorable loading position for the connected paving permeable pavement structure. It is suggested that the angle should be taken as the critical load position for the design of the pavement surface, and the plate with the plane size of 200mm / 330mm and 500mm is at 4:00 width to thickness ratio, and the ultimate load and critical deformation after immersion are the least. The permeable plate pavement structure with better flooding reliability and stability can withstand the load parking requirements of B737 series model under saturated condition. These conclusions are the new type of connecting paving type permeable pavement structure in the machine. The design and application of flat structure provide reliable optimization parameters and theoretical basis.
【學(xué)位授予單位】：中國民航大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U416.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 許琪樓,姜銳,唐國明;二鄰邊支承二鄰邊自由的矩形板彎曲統(tǒng)一求解方法[J];東南大學(xué)學(xué)報(bào)(自然科學(xué)版);2000年02期

2 侯相琛;鄧廣輝;田畢江;彭勃;;小尺寸水泥混凝土路面的有限元分析[J];低溫建筑技術(shù);2012年06期

3 蔚旭燦;鄭傳超;;溫克勒地基上結(jié)合式雙層板中性面分析[J];工程力學(xué);2007年09期

4 談至明,姚祖康,田波;水泥混凝土路面的荷載應(yīng)力分析[J];公路;2002年08期

5 孫家偉;王崇濤;鄭木蓮;王秉綱;;排水基層多孔混凝土的物理力學(xué)性質(zhì)[J];公路;2006年08期

6 李宜鋒;王崇濤;;排水基層多孔混凝土的強(qiáng)度相關(guān)性研究[J];公路交通科技(應(yīng)用技術(shù)版);2009年04期

7 鄧小勇;曠鵬;殷川;;多孔混凝土基層荷載應(yīng)力有限元模擬計(jì)算[J];交通科技;2008年06期

8 張巨松;張?zhí)砣A;朱桂林;韓自博;;透水路面路基性能的實(shí)驗(yàn)研究[J];沈陽建筑大學(xué)學(xué)報(bào)(自然科學(xué)版);2007年06期

本文編號(hào)：1496957