问题 单项选择题

某公路工程,承载比(CBR)三次平行试验成果如下表所示。上述三次平行试验土的干密度满足规范要求,则据上述资料确定的CBR值应为下列何项数值()贯入量(0.01mm) 100 150 200 250 300 400 500 750 荷载强度

(kPa) 试件1 164 224 273 308 338 393 442 496 试件2 136 182 236 280 307 362 410 460 试件3 183 245 313 357 384 449 493 532

A.4.0%

B.4.2%

C.4.4%

D.4.5%

答案

参考答案:D

解析:

根据《土工试验方法标准》(GB T50123—1999)第11.0.5~6条,当贯入量为2.5mm时,三个试件的承载比分别为:

当贯入量为5.0mm时,三个试件的承载比分别为

显然,则承载比(CBR)为4.5%

填空题
阅读理解

D

School kids show talents for charity

Youngsters at Fulwood High School and Arts College in Preston will show their talents to raise money for sick children. It is putting on a wonderful show on Thursday November to support Derian House Children’s Hospice(安养院)near Chorley.

Pupils are planning a night to remember, with a wide range of acts from singers and dancers to a magician. Local band Vox Population, fronted by former pupil Laurence Holt, will be playing following their recent tour of Germany. The best part of the night will be a surprise act by a group of teachers.

Tickets are available from the school priced £1.50 for pupils and £2 for adults. The show starts at 7 pm.

Grants(补助金)aim to boost recycling

Children and community groups across Lancashire have been given help to recycle more. More than 40 schools, organizations and community groups have received Waste Action Grants.

Brinscall Primary School in Chorley has been awarded 500 pounds to provide money for its Infant Fruit Waste project. The money has been used to buy a Roly Pig composter that will turn fruit waste into compost(堆肥).

Carole Lormer, from the school, said, “The children completely love the Roly Pigs. They have been feeding and turning them every day, using leftover fruit.”

For information visit www.globalrenewables.co.uk/wasteactiongrants or call 01172 642885.

Ready when you are

If you’re looking to bag that dream job, your basic maths and English skills need to be good. If you think your basic skills are a little out of practice, try taking Learnerdirect’s “Ready When You Are” challenge.

Hosted by Eamonn Holmes and Johnny Ball, it’s a fun and interactive quiz based on real life situations, which aims to help you decide where you might need to brush up on your basic skills. Log onto: www.learndirect.co.uk/ready

Good luck!

68.What information can we get from the first advertisement?

A. Laurence Holt is the main singer in the band.

B. Teachers will be surprised at the performance.

C. The show is held to celebrate students’ graduation.

D. Parents are expected to offer £2 to each pupil.

69.   How do the students in Brinscall Primary School recycle?

A. They feed pigs on the leftover fruit.

B. They turn waste fruit into fertilizer with a machine.

C. They awarded £500 to those who waste least at school.

D. They raised £500 for the Infant Fruit Waste project.

70.   “Ready when you are” is an advertisement for ________.

A. a good job.                 B. a skill learning course

C. an interactive quiz              D. an interesting website