背景材料 某桥梁3号墩为桩承式结构,承台体积约为200m3,承台基坑开挖深度为4m,

题型:问答题

问题:

背景材料
某桥梁3号墩为桩承式结构,承台体积约为200m3,承台基坑开挖深度为4m,原地面往下地层依次为:0~50cm腐殖土,50~280cm黏土,其下为淤泥质土,地下水位处于原地面以下 100cm。
根据该桥墩的水文地质,施工单位在基坑开挖过程中采取了挡板支撑的加固措施,防止边坡不稳造成坍方;在挖除承台底层松软土、换填10~30cm厚砂砾土垫层,使其符合基底的设计高程并整平后,即立模灌筑承台混凝土。为控制混凝土的水化热,采取了以下措施:
(1)选用水化热低的水泥。
(2)选用中、粗砂,石子选用0.5~3.2cm的碎石和卵石。
(3)选用复合型外加剂和粉煤灰,以减少绝对用水量和水泥用量,延缓凝结时间。
问题:

指出施工方为保证承台立模及混凝土浇筑所采取的措施的不完善之处。

考点:一级建造师公路工程公路工程管理与实务
题型:问答题

Reading comprehension.

     Many famous people had dreams when they were young. They often worked hard to make their dreams

come true.

     When I was only 13 years old, I first thought about what I should do in the future. I used to dream about

being a basketball player, a soccer player, or a baseball player. However, I gave up these dreams because I

was too short. Then I thought about going into music, so I bought a guitar. But I couldn't play it very well.

Then I had to give up my dream again. After that I thought about being a reporter and I worked really hard

at it. At the age of 25, my dream came true and I became a reporter.

     Finally, I learned the truth about making dreams come true. I should never give up and I must work hard.

Answer the questions according to the passage.

1. How old was the writer when he first had a dream?

    _________________________________________________________

2. Why did he give up being a basketball player? 

    _________________________________________________________

3. How many dreams did he give up?

    _________________________________________________________

4. Did his dream come true at last? 

    _________________________________________________________

5. What can you learn from this passage? 

    _________________________________________________________

题型:问答题

“江山留胜迹,我辈复登临。水落鱼梁浅,天寒梦泽深。”是唐朝诗人孟浩然的作品。“人事有代谢,往来成古今”体现的哲理是[ ]

A、自然界是客观的

B、人类社会是客观的

C、事物的联系是普遍的

D、一切事物都是变化发展的

题型:问答题

800平方分米=______平方米          6平方千米=______公顷.

题型:问答题

通常认为转速3000r/min的汽轮机振动轴相对位移峰-峰值<()μm可不受限制地长期运行。

A.125~165

B.120~175

C.120~165

题型:问答题

下列属于医患纠纷患者方面的原因的是()。

A.认知片面

B.财政投入不足

C.报道缺乏客观中立

D.职业道德欠缺

更多题库