问题 问答题

[案例一]

背景


某新建一级公路土方路基工程施工,工程取土困难。K10+000~K12+000段路堤位于横坡陡于1:5的地面,施工方进行了挖台阶等地基处理,然后采用几种不同土体填料分层填筑路基,填筑至0~80cm,施工方选择细粒土,采用18t光轮压路机,分两层碾压。两层碾压完成后,检测了中线偏位(合格率90%)、纵断高程(合格率85%)、平整度(合格率85%)、宽度(合格率88%),横坡(合格率92%)和边坡坡度(合格率90%),认定土方路基施工质量合格,提请下一道工序开工。

问题:


影响土方路基质量最关键的因素是填料和压实,该工程的施工方法对此是否控制有效,为什么

答案

参考答案:该工程未能有效控制压实质量。因为根据选择的填料和压实机具,应该分三层或四层碾压。

解析: 现场质量控制的检测的土方路基实测项目有:压实度、弯沉值、纵断高程、中线偏位、宽度、平整度、横坡、边坡。路基的压实度反映了土体在碾压后达到的密实程度,能否达到规定的标准,直接影响到路基的强度和稳定性,由于本段路基填料均为土质,在结束交工验收检查时,验证其弯沉值、压实度等各项指标。而本例分层碾压时,每一压实层都要进行相关检测。因为存在漏项,漏了压实度和弯沉,不能认定合格,不符合工序检查的要求。

阅读理解

Most students hate their endless homework. The students from Class 2, Senior 2 of the High School Affiliated to Peking University certainly did before they published their own collection of English novels at home.

Their small book contains stories about a holy (神圣的) war, the happy life of a self-taught artist and the story of a laid-off worker who devoted his last breath to playing his beloved accordion (手风琴). The book becomes an instant hit on campus. About 3,000 copies have been sold and the class is already working on the second volume.

"We’re up to our ears in homework. Exercises and exams make us out of breath. But to do something creative and full of imagination is such a great achievement," said Yu Xiaoxiao, 16.

"I took the writing as an ordinary homework at the beginning, but after I finished the first part of my story, I could not help but let it flow," said Wang An, who wrote "Accordion".

Inspired by "Lord of the Rings", Jiang Lu wrote his story about magic wars between angels from the light and the dark side. "The main message of the story was to look at the balance of the world. Both dark and light angels fight with love as their weapons. I want to tell people that selfish love might bring hate," Jiang said.

"I was shocked by their work and felt so proud to be the editor of my students’ book," said Nathaniel Timmermann, the oral English teacher at the school. Liu Xiuqin, an English teacher, started the project by asking students to write whatever was in their mind every week. "They have performed beyond expectation," Liu said. "They wrote interesting stories and their English has improved after they started to express their real minds."

"We never imagined that our homework would be so popular and profitable (盈利的). We sell the novels at five yuan, but many teachers pay more to encourage us," said Yuan Mengyao.

小题1: After Wang An finished the first part of his story, he _________.

A.couldn’t go on

B.had to put it aside

C.just wanted to express it freely

D.lost it小题2:What was not the outcome of the students’ homework of writing whatever was in their mind?

A.Being popular.

B.Being profitable.

C.Improving their English.

D.Winning prize.小题3:What is the reason for the students’ liking to write interesting stories?

A.It is creative and imaginative.

B.It is profitable.

C.Interesting stories are sure to be popular.

D.Interesting stories can be well sold.小题4:What is the best title of this passage?

A.Creative homework leads to a popular book

B.Writing interesting stories

C.Students’ new book

D.A popular book

单项选择题