路基路面課程設(shè)計(jì).doc

一、設(shè)計(jì)資料
廣東省某二級(jí)公路，原路面寬12 m，土路肩2*3.0m，根據(jù)建設(shè)方的要求，改建后為一級(jí)路面的寬度為42 m，硬路肩2*2.5 m，雙向8車道，近期交通量如表一所示，交通量年增長(zhǎng)率為10%，該路段路基屬于干燥類型，在不利季節(jié)（干季）用黃河JN150車測(cè)得的路段30個(gè)測(cè)點(diǎn)的彎沉值如表2，測(cè)定時(shí)路表溫度與前5H平均氣溫之和為76.05`C，原路面結(jié)構(gòu)如圖1所示。土基回彈模量為40MPa,基層、底基層選用6%水泥穩(wěn)定石粉（E=600MPa，劈裂強(qiáng)度為0.6MP，彎拉回彈模量為2800MPa）、4%水泥穩(wěn)定石粉（E=350MPa，劈裂強(qiáng)度為0.4MPa，彎拉回彈模量為1500MPa）。
First, design data
Secondary roads in Guangdong Province this route, voluminous 12 m, soil shoulders 2 * 3.0m, according to the requirements of Party building, converted to a road width of 42 m, hard shoulder 2 * 2.5 m, two-way 8-Drive, the recent as shown in Table 1 Traffic volume, traffic growth rate of 10%, the road subgrade is dry and the type of unfavorable season (dry season) in the Yellow JN150 car measured 30 sections measuring points Deflection Table 2 to determine when the road surface temperature and pre-5H and the average temperature of 76.05 `C, the original pavement structure shown in Figure 1. Subgrade modulus is 40MPa, the grassroots, sub-base use of 6% cement stabilized powder (E = 600MPa, splitting strength 0.6MP, bending back elastic modulus 2800MPa), 4% cement stabilized powder (E = 350MPa , splitting strength of 0.4MPa, bending back elastic modulus is 1500MPa).

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