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公路改扩建
某地拟对现有一条三级公路进行改扩建。现有公路全长82.0km。所在地区为丘陵山区,森林覆盖率约40%,沿线分布有旱地、人工林、灌木林、草地和其他用地。公路沿线两侧200m范围内有A镇、10个村庄和2所小学(B小学和C小学)。A镇现有房屋结构为平房,沿公路分布在公路两侧300m长度的范围内。房屋距公路红线10m~20m不等;B小学位于公路一侧,有两排4栋与公路平行的平房教室,临路第一排教室与公路之间无阻挡物,距公路红线45.0m,受现有公路交通噪声影响。公路沿途有1座中型桥和5座小型桥,中型桥跨越X河,桥址下游1.0km处有鱼类自然保护区。
改扩建工程拟将现有公路改扩建为一级公路。基本沿现有公路单侧或双侧拓宽,局部改移路段累计长约8.2km。改扩建后公路全长78.0km。路基平均高度0.5m。其中,考虑到城镇化发展的需要,改扩建公路不再穿行A镇,改从A镇外侧绕行。在途径B小学路段,为不占用基本农田,公路向小学一侧拓宽,路基平均高度0.3m;拟在跨X河中型桥原址上游800m处新建一座跨越X河的中型桥,替代现有跨河桥。
问题:
1、给出B小学声环境现状监测要点。
2、为评价扩建工程对A镇声环境的影响,需要调查哪些基本内容?
3、为了解公路沿线植物群落的类型和物种构成,哪些植被需要进行样方调查?
4、跨越X河的新的中型桥梁设计应采取哪些环保工程措施。

A.0km。所在地区为丘陵山区,森林覆盖率约40%,沿线分布有旱地、人工林、灌木林、草地和其他用地。公路沿线两侧200m范围内有A镇、10个村庄和2所小学(B小学和C小学)。A镇现有房屋结构为平房,沿公路分布在公路两侧300m长度的范围内。房屋距公路红线10m~20m不等;B小学位于公路一侧,有两排4栋与公路平行的平房教室,临路第一排教室与公路之间无阻挡物,距公路红线45.0m,受现有公路交通噪声影响。公路沿途有1座中型桥和5座小型桥,中型桥跨越X河,桥址下游1.0km处有鱼类自然保护区。
改扩建工程拟将现有公路改扩建为一级公路。基本沿现有公路单侧或双侧拓宽,局部改移路段累计长约8.2km。改扩建后公路全长78.0km。路基平均高度0.5m。其中,考虑到城镇化发展的需要,改扩建公路不再穿行A镇,改从A镇外侧绕行。在途径B小学路段,为不占用基本农田,公路向小学一侧拓宽,路基平均高度0.3m;拟在跨X河中型桥原址上游800m处新建一座跨越X河的中型桥,替代现有跨河桥。
问题:
1、给出B小学声环境现状监测要点。
2、为评价扩建工程对A镇声环境的影响,需要调查哪些基本内容?
3、为了解公路沿线植物群落的类型和物种构成,哪些植被需要进行样方调查?
4、跨越X河的新的中型桥梁设计应采取哪些环保工程措施。

【参考答案】

1、给出B小学声环境现状监测要点。(6分)
(1)在B小学第一排教室前1m,高1.2m处分别设监测点(2分)......

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