试题与答案

某大厦位于滨海地区,基础为桩基。采用400mm×400mm钢筋混凝土预制桩。桩长24

题型:问答题

题目:

某大厦位于滨海地区,基础为桩基。采用400mm×400mm钢筋混凝土预制桩。桩长24m,分上、下两段,上段长10m,下段长14m,中间接头采用4根角钢焊接,单桩设计承载力为600kN。大厦由A、B、C三区组成,A区打桩完毕,开挖基坑后,现场质检人员发现,桩顶存在较严重的位移现象,于是请来某专业研究机构分析原因。专业研究人员进行了现场勘测,量测了桩顶位移的数据,分析了位移的规律性,并进行了小应变动力测试和抽样垂直静荷栽实验,发现断桩率高达20%。
专业人员在提交的研究报告中,分析该桩基工程发生桩顶位移和较多断桩事故的原因,主要有以下方面:
(1)该工程场地位于滨海地区,地面以下为淤泥质黏土,含水量很高,土体可压缩性小,锤击打桩时可产生相当大的挤压力,使已打完的临近桩容易发生以倾斜为主的侧向位移;
(2)发生断桩事故的主要原因是施工质量不符合要求。上下段桩身用角钢焊接连接,焊缝长度和焊缝质量未达到设计要求,打桩时焊缝断裂,造成断桩;
(3)桩顶偏移程度与断桩密切相关。由于桩身中间在接桩处断开,失去了约束作用,临近区域打桩对上段桩的影响程度增大,严重的在接头处出现错位,致使上段桩的桩身和桩顶发生较大侧向移位。
报告对B、C两区桩基施工提出改进建议:采取合理沉桩程序和方法;施工场地采取降水措施;改进接桩方法和保证接桩质量,或修改设计,采用其他类型桩基。
[问题]
1.项目诊断按照专业内容可划分为哪几类本案例是属于哪一类

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A, B, C

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阅读下面材料,在空白处填入适当的内容或括号内单词的正确形式(不多于3个单词)

Have you heard of a student awarded master’s dgree? Of curs. But the following student is quite different. Because she is  小题1: blind and dead. She is  小题2: combination of disabilities that is one of the mot severe known to mankind. Mrs Michelle Smithdas 小题3: (enjoy) a special success when she was awarded a masters degree at teachers’ College, New York, in the spring of 2005.

She did it with a lot of help from a lot of friends and   小题4:  (volunteer). Michelle, who received her degree in education of blind and visually impaired (受损的)learners,   小题5:  (believe)to be the first to gain a graduate degree from a top, famous university. She is an instructor at the Helen Keller National Centre in Sands Poit, New York,  小题6:  she teaches Braille, vocabulary,sign language and   小题7:  communicatio skills to those who are deaf-blind like her. For five years, she was driven to and from New York City for her classes by Mrs Linda Stillman, who also served  小题8: her interpreter. During classes, Mrs Stillman would sit next ot Michelle and hold her hand, using the manual alphabet (also known as finger-spelling) to communicate.Michelle also participated fully in class, going on al field trips and  小题9: (ask) questions in class. Outside class, many of her friends and helpers helped her read text books and write research papers.

According to one professor at Teachers’ College, Michelle was  小题10: only a fine student but also an inspriration to us all. Michelle

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资料1

南京万和电子有限公司(海关注册编号3201331111)在投资总额内进口设备一批。货物进口前,该公司已向主管海关取得编号为Z22004A×××××的征免税证明,该证明海关签注为“鼓励项目”。货物委托上海申华进出口公司(海关注册编号3104911111)进口,由上海大通报关公司(海关注册编号3104981111)向浦东机场海关(关区代码2233)申报。该设备法定计量单位:台;入境货物通关单编号:3103001041295×××××。保险费率5‰。

资料2

资料4

资料5

请根据以上资料,填制进口报关单以下栏目:

“成交方式”栏应填()。

A.CIP

B.1

C.2

D.3

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