问题 问答题

第一题 道路改扩建项目 拟对某一现有省道进行改扩建,其中拓宽路段长16km,新建路段长8km,新建、改建中型桥梁各1座,改造后全线为二级干线公路,设计车速80km/h,路基宽24m,采用沥青路面,改扩建工程需拆迁建筑物6200㎡。 该项目沿线两侧分布有大量农田,还有一定数量的果树和路旁绿化带,改建中型桥梁桥址,位于X河集中式饮用水源二级保护区外边缘,其下游4km处为该集中式饮用水源保护区取水口。新建桥梁跨越的Y河为宽浅型河流,水环境功能类别为Ⅱ类,桥梁设计中有3个桥墩位于河床,桥址下游0.5km处为某鱼类自然保护区的边界。公路沿线分布有村庄、学校等,其中A村庄、B小学和某城镇规划住宅区的概况及公路营运中期的噪声预测结果见下表。

 [问题]

为保护饮用水水源地水质,应对跨X河桥梁采取哪些配套环保措施

答案

参考答案:

根据项目特点,为保护饮用水水源地水质,应对X河桥梁采取的配套环保措施有: (1)提高桥梁建设的安全等级。 (2)限制通过桥梁的车速,并设警示标志和监控设施。 (3)设置桥面径流导排系统,防止污水排入水中,并在安全地带设事故池,将泄漏的危险化学品引排至事故池处置,防止排入水中。 (4)桥面建设防撞装置(如防撞护栏)。

阅读理解

阅读理解。

     A man was travelling abroad in a small red car.One day he left the car and went shopping.When he

came back, its roof was badly damaged(损害).Some boys told him that  an  elephan t had damaged it.

The man did not believe them, but they took him to a circus(马戏团)which was near  there.The owner

of the elephant said, "I am very sorry! My elephant has a big, round, red chair.He thought that your car was his chair, and he sat on it!"

     Then he gave the man a letter,  in which he said that  he was sorry and  that he  would  pay  for all the

damage.

     When the man got back to  his  own country,  the customs officers(海关人员) would not believe his

story.They said, "You sold your new car while you were abroad and bought this old one!"

     It was only when the man showed them the letter from the circus man that believed him.

1.A man was travelling abroad ________.

A.in a big bus   

B.in a green jeep

C.in a red car    

D.in a red taxi

2.The car was damaged because _________.

A.there was a traffic accident        

B.the circus man broke it

C.it rushed into a shop             

D.the elephant sat on it

3.The circus man said that ______.

A.he would pay for part of the damage

B.he would pay for all of the damage

C.he wouldn't pay for the damage

D.he would buy him a new car

4.When the man got back to his country, the customs officers _______.

A.would check his new car          

B.only checked his car

C.searched him      

D.wouldn't believe what he had said

5.It was only ___________ that made the officers believe him.

A.the letter from the circus man    

B.a newspaper from the country

C.the certificate of his              

D.the letter from the government

单项选择题