问题 问答题 案例分析题

某公司承包了一条单跨城市隧道,隧道长度为800m,跨度为15m,地质条件复杂,设计采用浅埋暗挖法施工,支护结构由建设单位直接分包给一家专业施工单位。

施工准备阶段,该公司项目部建立了现场管理体系,设立了组织机构,确立了项目经理岗位职责及工作程序。在

暗挖加固支护材料的选用上,通过不同掺量的喷射混凝土试验来确定最佳掺量。

施工阶段,项目部根据工程的特点,对施工现场采取了一系列的职业病防范措施,安设了通风换气装置和照明设施。

工程预验收阶段,总承包单位与分包单位分别向城市建设档案馆提交了竣工验收资料,专业分包单位的资料直接由专业监理工程师签字。

根据背景资料,该隧道可采取哪些浅埋暗挖施工方案?

答案

参考答案:

根据背景介绍,该隧道可选择的浅埋暗挖法:

(1)双侧壁导坑法;

(2)中隔壁法(CD.;

(3)交叉中隔壁法(CRD.;

(4)中洞法、侧洞法。

阅读理解

Do you know that colorful fruits and vegetables are good for your health? Their natural colors help protect your body from disease. Think about the colors of the food: the red of tomatoes, the orange of carrots, the green of kiwi fruit(猕猴桃), and the purple of grapes.

You can enjoy eating fruits and vegetables of all colors: green, yellow, orange, red, blue, purple and white. Each color has something unique(独一无二的) and important for good health. They work together to protect your body.

Scientists have surprisingly discovered the benefits of colorful fruits and vegetables. The list below shows the benefits of some colors in fruits and vegetables.

Red gives you a healthy heart. It can reduce the risk of heart disease. Red helps prevent cancer. It helps improve your memory, too.

Yellow and orange give you a healthy immune system(免疫系统). They are also good for your eyes. They help prevent blindness in the old.

White can keep cholesterol(胆固醇) at a lower level.

Green helps prevent cancer. It is good for your eyes. It also gives you strong bones and teeth.

Blue and purple help protect your memory as you grow old. They also help fight cancer and heart disease.

So when you buy or eat fruits and vegetables, remember: the more colors, the better!

小题1:______different colors of fruits and vegetables are mentioned in the passage.

A.Four

B.Five

C.Six

D.Seven小题2:The underlined word “benefits” in the passage means “_______”.

A.益处

B.危害

C.营养

D.后果小题3:Daniel has poor eyesight. _____ fruits and vegetables are good for him.

A.Red, yellow and orange

B.White, green and blue

C.Yellow, green and orange

D.Blue, red and white小题4:Which of the following is NOT true according to the passage?

A.Keeping cholesterol at a lower level is good for your health.

B.The more colorful fruit and vegetables you eat, the better it will be for your health.

C.Red fruits and vegetables will cause heart diseases.

D.Blue, purple and red fruits and vegetables are good for your memory.

阅读理解与欣赏