交通噪声测定实验报告

青岛理工大学 2009-2010 学年第一学期建 筑 物 理 实 验 报 告项目名称： 交通噪声测定实验 专业年级： 建筑学 2007 级 组 别： 许从宝导师组 指导教师： 于红霞 实验学生： 徐建勤 200703270 王忻 200703259 林德龙 200703179 蔡萌 200703184 王艺玮 200731028 吕胜男 200703229 王 峰 200703313 焦 雷 200703183 赵 晨 200703325 实验时间： 2010 年 4 月 28 日 16：00 实验地点： 青岛理工大学校园 1建筑学院建筑物理实验室制一实验目的、原理及方法目的：掌握交通噪声的测量方法，熟悉声级计的使用方法，学会绘制小环境噪声分布图。原理：当前我国城市噪声中，交通噪声占有相当大的比例，这是因为随着经济的发展和人们生活水平的提高，城市的交通运输量增长迅速，交通噪声成为新的社会问题，所以研究并解决交通噪声具有重要的意义。交通噪声是一种随机噪声，我们需要在一段时间内，测量它的统计百分数噪声级或累积分布噪声级，一般记录为 A 声级，得到它的峰值 L10，平均中值 L50 和背景值 L90，进而得到等效噪声级 Leq。 NLegNiLAilg10)l(10.0式中：Leq等效噪声级 dB(A)LAi每次测得的 A 声级 dB(A)N 总测量次数对道路两侧小环境，划分一定的网格，测出网格交点的等效噪声级，将相同值点连线，得到噪声分布图，从而对该环境噪声情况有一大致了解。二实验步骤及注意事项实验步骤：1选择抚顺路和山东路十字路区域为测量区域，并以 10 米间距在图纸上划分网格。2打开声级计，检查电池情况，把声级计放在离地 1.2m 左右的位置。3记录声级计瞬态读数值，每隔 10S 读一个值，共记录 100 个数值。4整理记录数据，计算 L10、L 50、L 90 和 Leq。5绘出该区域的环境噪声图，并做简要分析。注意事项：1.校园内的噪声是一种随时间起伏的随机噪声，对这种噪声的评价，应选择多个点采用统计的方法2.在选点时，应注意疏密得当，并选择有代表性的点3.在进行数据记录时，应保持安静，尽量避免对声级计的测定结果产生影响2三实验仪器、用具及材料实验仪器：声级计实验用具：秒表四实验数据记录及处理（有关表格、分析图、数据计算等）各点布置如下图所示：处理后数据：A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 D31 82.4 58.3 63 72.8 65.7 61.1 69.8 71.3 69.7 67.1 80.5 61.82 81.5 56.3 62.6 71.5 61.3 60 69.3 63.4 65.3 66.6 68 60.53 80.5 56.3 62.1 69.7 61.1 59.9 68.9 63.3 65.1 65 67.8 59.74 78.2 55.5 62 68.9 60.9 59.3 66.5 62.9 64.5 64.8 66.5 58.935 77.7 55.4 61.8 68.4 60.2 59.3 65.7 62.8 64.4 64.7 66.1 58.76 76.6 55.3 61.7 66.1 59.9 58.6 65.6 62.8 64.3 64.1 65.8 58.57 76.4 54.6 61.6 65.9 59.9 58.6 65.1 62.4 63.9 62.9 65.1 58.38 76 54.4 61.6 65.6 59.5 58.1 65.1 62.1 63.9 62.9 65 58.29 75.8 54.1 61.6 65.5 59.5 58 64.9 62.1 63.8 61.8 64.8 5810 75.3 54 61.4 65.3 59.4 57.8 64.3 61.6 63.7 61.8 64.6 57.311 75.1 54 61.2 65.1 59.2 57.5 64.3 61.3 63.5 61.8 64.3 57.212 75.1 53.8 61.2 64.3 58.8 57.2 63.9 61.2 63.4 61.7 64 57.213 75 53.6 61 63.9 58.6 56.5 63.8 61 63.3 61.4 63.9 56.914 74.7 53.4 61 63.7 58.6 56.4 63.7 60.9 62.4 61.4 63.8 56.815 74.3 53.4 61 63.5 58.5 56.2 63.5 60.5 62.1 61.3 63.1 56.516 74 53.4 60.9 63.1 58.5 56.2 63.5 60.5 62.1 61.1 61.8 56.517 73.5 53.3 60.8 62.6 58.3 56.2 63.5 60.4 62 60.9 61.5 56.418 73 53.3 60.6 62.4 58.3 56 63.3 60.4 61.8 60.7 61.5 56.219 73 53.2 60.5 62.4 58.1 55.6 63.2 60.3 61.7 60.3 61.5 5620 72.1 53.2 60.3 62.3 57.6 55.5 63 59.9 61.3 59.9 61 5621 71.4 53 60.1 62.3 57.5 55.4 62.9 59.4 61.2 59.7 61 55.822 71.4 53 60 62.1 57.5 55.4 62.9 59.4 61.2 59.5 60.8 55.523 70.5 52.9 59.9 62 57.3 55.2 62.8 59.2 60.9 58.9 60.5 55.324 70.1 52.8 59.7 62 57.1 55.1 62.7 59.2 60.7 58.9 60.5 54.425 70.1 52.7 59.6 61.9 57.1 55.1 62.6 59.2 60.6 58.8 60.2 5426 69.7 52.6 58.9 61.9 57.1 55 62.5 59.1 60.4 58.7 60.1 53.927 69.5 52.6 58.5 61.7 57 54.9 62.5 59.1 60.3 58.6 60 53.828 69.1 52.4 58.4 61.7 56.9 54.8 62.2 59.1 60.3 58.5 60 53.629 69.1 52.4 58.4 61.3 56.7 54.6 62.1 58.9 60.2 58.5 59.9 53.430 68.7 52.4 58.4 61.1 56.7 54.5 62 58.9 60.2 58.5 59.7 53.331 68.7 52.4 58.2 61 56.7 54.3 61.9 58.9 60.2 58.1 59.5 52.932 68.7 52.3 58.1 60.9 56.2 54.3 61.9 58.8 60 58.1 59.4 52.833 68.7 52.3 58.1 60.9 55.9 54.2 61.7 58.7 59.6 57.8 59.2 52.834 68.7 52.2 58 60.8 55.8 54.2 61.6 58.7 59.6 57.8 59.1 52.435 68.6 52 58 60.7 55.6 54.1 61.2 58.4 59.3 57.6 58.9 52.136 68.1 51.9 57.9 60.4 55.6 54.1 61 58.2 59.3 57.5 58.8 51.837 67.8 51.9 57.8 60.3 54.8 54 61 58.2 59.3 57.4 58.6 51.838 67.7 51.8 57.6 60.2 54.6 54 61 57.8 59.2 56.5 57.3 50.639 67.7 51.7 57.6 60.1 54.6 53.8 60.8 57.4 59.1 56.3 57.2 50.340 67.6 51.6 57.2 59.7 54.2 53.8 60.5 57.3 58.9 55.6 56.8 5041 65.9 51.6 57.2 59.7 53.8 53.6 60.1 57.3 57.9 53.8 56.8 5042 65.9 51.5 57.1 59.7 53.7 53.5 59.8 57.3 57.7 53.7 56.5 49.743 65.4 51.3 57.1 58.8 53.6 53.5 59.7 57.3 57.7 53.5 56.4 49.444 65.3 51.3 57 58.4 53.5 53.4 58.5 57.2 57.7 53.2 56.1 4945 64.8 51.3 56.6 58.1 53.3 53 58.2 57.1 57 53.2 55.7 48.946 64.8 51.2 56.3 58 53 52.7 57 56.6 57 52.6 55.5 48.347 64.4 51 55.8 56.5 52.6 52.6 56.5 56.5 56.6 51.8 55.2 4848 64.3 50.9 54.5 55.6 52.4 52.6 55.7 56.4 55.9 51.3 55 4849 61.4 50.8 54.3 55.4 52.3 52.3 53.8 55.9 55.8 51.2 54.9 4850 61.4 49.9 53.9 54.8 51.7 52.3 53.5 55.7 55.4 50.9 54.2 46.46E1 E2 E3 F1 F2 F3 G1 G2 G31 83.6 86.2 86.4 63.6 67.2 56.5 67.5 67.2 66.12 83.4 83.5 80.2 63.4 55.8 55.4 66.7 67.2 65.63 82.2 83.4 78.1 61.3 55.4 55.3 66.4 66.7 65.64 81.7 78.7 78.1 61.1 53.9 55.2 66.1 66.7 65.55 81.4 77.4 77.8 60.5 53 54.8 65.2 66 64.76 81.4 76.6 77.1 59.6 52.8 54.1 65.1 64.5 64.67 80.1 76.2 76.6 58.9 52.7 54.1 64.8 63.8 64.58 80 76.1 76.2 58.7 52.4 54 64.7 63.7 64.39 79.6 75.4 76.1 57.7 52.3 53.9 64.4 63.3 63.710 79.2 75.2 76 57.3 52.3 53.9 64.2 62.7 63.511 79.2 75 76 57.3 52.2 53.8 63.9 62.7 63.312 79.1 74.6 75.2 57.2 52 53.8 63.9 61.9 63.213 79 73.2 75 57.1 52 53.6 63.7 61.1 62.614 77.7 72.9 74.8 56.6 52 53.6 63.6 60.8 62.515 77.7 72.7 74.6 56.6 51.6 53.6 63.6 60.8 62.216 77.4 72.5 74.6 56.4 51.5 53.6 63.2 60.7 62.117 77.4 72.5 74.5 55.8 51.5 53.5 63.2 60.7 6218 77.4 72 74.4 55.5 51.5 53.5 62.6 60.7 61.719 77.1 72 74.3 55.3 51.4 53.4 62.4 60.6