问题 问答题 简答题

何谓正常固结粘土和超固结粘土,两者的压缩特性和强度特性有何区别?

答案

参考答案:

把土在历史上曾经受到的最大有效应力称为前期固结应力,以pc表示;而把前期固结应力与现有应力po'之比称为超固结比OCR,对天然土,OCR>1时,该土是超固结;

当OCR=1时,则为正常固结土。

压缩特性区别:当压力增量相同时,正常固结土压缩量比超固结土大。

强度特性区别:超固结土较正常固结土强度高

阅读理解

Pearl and June were good friends and spent most of their time together.

They were both very old and they worried about their health. Most of the time they talked about nothing else.

They worried about their food. Was it clean? Would it give them pains in the stomach?

They worried about the weather. Was it too cold and wet? Would it give them pains in their bones?

They worried about pollution in the air. would it give them pains in their chests(胸部)and throats(喉咙)?

They worried about being hurt in a car accident, killed in a plane crash, getting sick, and so on.

All they could think about was being ill or hurt.

One day they went on a train journey together.

“We’ll need some food,”Pearl said.

“We’ll buy some bananas,”June said.“They are good to eat and always clean.”

And so they bought two bananas to eat on the train.

It was not long before they were hungry.

Pearl took out the bananas and gave one to June. Then she peeled(剥)the skin of her banana and took a large bite of it.

At that moment the train went into a tunnel. Everything went black.“Don’t eat your banana,”Pearl shouted at June.“Mine has made me go blind!”

小题1:What did the two old ladies talk about most of the time? _________

A.Themselves.

B.Other people.

C.Healthy food.

D.Dangerous drivers.小题2: The old ladies didn’t want to ______.

A.eat any bananas

B.travel by train

C.be young again

D.get sick小题3:Pearl ate her banana ________.

A.after they came out of the tunnel

B.at the station

C.before June ate hers

D.before she was hungry小题4: Pearl thought that the banana _______.

A.stopped her from seeing

B.would make her hungry

C.would make her ill

D.would be good for June小题5:What’s the best title of the story? __________.

A. What Good Friends                   B. What a Bad Train Journey

C. Bananas Are Good for You            D. Bananas Are Bad for You

单项选择题 B型题