本文選題：地下道路 + 復(fù)合式路面��； 參考：《河北工業(yè)大學(xué)》2014年碩士論文

【摘要】：隨著城市建設(shè)的發(fā)展，地下道路已進入快速發(fā)展階段。目前，我國尚未對地下道路路面結(jié)構(gòu)設(shè)計方法進行系統(tǒng)研究，也缺乏相應(yīng)的技術(shù)規(guī)范和指南。本文以實體工程為依托，圍繞地下道路溫度場分析、交通量調(diào)查、軸載換算方法研究、損壞模式調(diào)查、地下道路復(fù)合式路面結(jié)構(gòu)力學(xué)特點等內(nèi)容進行系統(tǒng)研究，主要結(jié)論有： 1．在地下道路施工過程中埋設(shè)預(yù)埋式溫度傳感器，對道路運營期間的溫度數(shù)據(jù)進行采集，并以實測溫度為基礎(chǔ)建立了地下道路復(fù)合式路面瞬態(tài)溫度場分析模型。在調(diào)查中發(fā)現(xiàn)，地下道路復(fù)合式路面結(jié)構(gòu)中水泥混凝土板底和板頂?shù)臏夭钶^小，在結(jié)構(gòu)設(shè)計時可以不用考慮水泥混凝土板的溫度應(yīng)力。 2．深入分析了天津市海河?xùn)|路地下道路交通量以及車輛軸載情況，，提出了以單軸雙輪組60KN作為地下道路的標(biāo)準(zhǔn)軸載。以瀝青面層底部的拉應(yīng)變以及層間剪應(yīng)力為設(shè)計指標(biāo)，推導(dǎo)得到了地下道路復(fù)合式路面軸載換算公式。 3．地下道路AC+CRC復(fù)合式路面結(jié)構(gòu)的力學(xué)控制指標(biāo)主要有：瀝青層底彎拉應(yīng)變，瀝青層底最大剪應(yīng)力及連續(xù)配筋混凝土層底彎拉應(yīng)力；全面分析了各參數(shù)對瀝青層及連續(xù)配筋混凝土層力學(xué)性能的影響。 4．提出了以瀝青層疲勞開裂和層間剪切疲勞的瀝青面層厚度設(shè)計模式，和以疲勞應(yīng)力不超過抗彎拉強度來確定連續(xù)配筋混凝土板厚度的設(shè)計模式。
[Abstract]:With the development of urban construction, the underground road has entered the stage of rapid development. At present, our country has not yet systematically studied the design method of the underground road pavement structure, but also lacks the corresponding technical specifications and guidelines. This paper, based on the solid engineering, is based on the analysis of the temperature field of underground roads, traffic volume investigation, axle load conversion method and damage. Model investigation and mechanical characteristics of composite pavement structure of underground roads are systematically studied.
1. the pre buried temperature sensor is buried during the underground road construction, and the temperature data of the road operation is collected. The transient temperature field analysis model of the compound pavement of underground road is established on the basis of the measured temperature. In the investigation, the temperature difference between the bottom of the cement concrete slab and the top of the slab is found in the composite pavement structure of the underground road. The temperature stress of cement concrete slab can not be taken into account when the structure is designed.
2. the traffic volume of the underground road and the axle load of the Tianjin Haihe East Road are deeply analyzed, and the standard axle load of the underground road is put forward by the single axis double wheel group 60KN. The formula of the axle load conversion of the complex pavement of the underground road is derived by taking the tensile strain and the interlayer shear stress at the bottom of the asphalt surface as the design index.
The mechanical control indexes of the AC+CRC composite pavement structure of 3. underground road mainly include the bottom bending strain of the asphalt layer, the maximum shear stress at the bottom of the bituminous layer and the bending stress of the continuous reinforced concrete layer, and the impact of the parameters on the mechanical properties of the asphalt and continuous reinforced concrete layers is analyzed.
4. the design model of asphalt surface thickness with asphalt layer fatigue cracking and interlayer shear fatigue is proposed, and the design mode of the thickness of continuous reinforced concrete slab is determined by fatigue stress not exceeding the flexural tensile strength.

【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U416.2

【參考文獻】

相關(guān)期刊論文 前1條

1 吳贛昌,陳峗;四層路面結(jié)構(gòu)溫度場的計算方法[J];長沙交通學(xué)院學(xué)報;1992年03期

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