某公司承接了某一段紧邻居民区的一级道路改扩建工程。工程中包含一段长540m的新增路线

题型:问答题 案例分析题

问题:

某公司承接了某一段紧邻居民区的一级道路改扩建工程。工程中包含一段长540m的新增路线(含下水道300m)和一段长330m的路面改造(含下水道180m),另需拆除一座旧人行天桥、新建一座立交桥。新增线路部分地下水位位于-4.0m处(原地面高程为±0.000m),下水道基坑设计底高程为-5.5m,立交桥上部结构为预应力箱梁,采用现浇施工。项目部组织有关人员编写了施工组织设计,其中进度计划见下图。

施工中发生了如下事件:事件1:在新增路线下水道基坑开挖施工中,由于提供的原有地下管网资料标注偏差,导致供水管和光电缆被挖断,使开挖施工暂停14天。事件2:在改造路面施工中,由于摊铺机设备故障,导致施工中断7天。事件3:箱梁预制时,业主提出修改设计,施工单位按设计变更要求拆除了部分已完工程,重新施工。造成施工方多支付人工费1万元,材料和机械费用2万元,并导致预制工作暂停2天。事件4:由于相关事件对工期造成的影响,为保证工期,施工单位在连夜施工的同时,向当地行政主管部门报送了夜间施工许可申请,并对附近居民进行公告。项目部针对施工中发生的可能索赔的项目,积极收集相关资料,并按合同规定程序向业主提出索赔。

1.计算工程总工期,并指出关键线路(指出节点顺序即可)。

2.根据原有进度计划,计算确定"新线基层施工"的最早可能开始时间(假设工程为第0天末开始施工)。

考点:公路工程公路工程题库
题型:问答题 案例分析题

Now a lot of families keep pets(宠物) in their houses. Most pets are small animals, such as cats, dogs, fish, snakes, birds and so on.

Dogs are the favorite pets. The second favorites are cats and the third favorites are birds. These small animals are very cute and friendly. People usually have them as their family members. They look after them very well, they let them wear beautiful clothes and their pets have nice names. They also afford their pets nice food to have. They buy food for their pets in pet shops. They keep them clean every day.

Pets are all very happy. Many pets have their houses and beds. They often go out to relax and take a walk with people in the park in the morning.

Some children like pets because they need a friend to play with at home. Many old people don’t live with their children, and they keep pets at home just because they often feel lonely(孤独的). They have them as their children and they love them very much. So pets are very important. I think every famil y needs pets.

小题1:Most people like to keep ________ animals at home.

A.small

B.white

C.big

D.black小题2:People give their pets _______ and _________.

A.nice names, nice books

B.pet shops, nice books

C.nice names, nice food

D.pet shops, nice food小题3:Pets often _______ with people in the morning.

A.take a shower

B.go walking

C. play soccer

D.listen to music小题4:Why are the pets happy?

A. Many of them have their houses and beds.  B. They are children’s friends.  

C. They often go out to relax and take a walk.  D. Both A and C.

小题5:The writer thinks __________.

A.pets are dirty

B.people don’t need pets at home

C.people don’t like animals

D.pets are very important

题型:问答题 案例分析题

质量相等的锌和铁分别和质量相等、浓度也相等的稀盐酸反应,反应情况如图所示。则下列叙述中正确的是

[ ]

A .图线a 、b 分别表示锌、铁的反应情况

B .锌、铁均反应完,盐酸有剩余

C .盐酸均反应完,一定有锌剩余

D .盐酸均反应完,一定有铁剩余

题型:问答题 案例分析题

女性,32岁,活动后心悸气短3年余,夜间不能平卧,咳嗽,咳粉红色泡沫样痰1小时而来诊。1周前发热,咽痛,咳嗽,呼吸30次/min,双肺布满干湿性啰音,心界向两侧扩大,心尖部2/6级收缩期吹风样杂音。

发病的病因是()

A.急性心肌炎

B.高血压性心脏病

C.扩张型心肌病

D.心包炎

E.甲亢

题型:问答题 案例分析题

从现场采样到实验室分析需要一段时间,由于物理化学变化和生物作用,水样中的各组分可能发生改变,在下列各项中,哪项要求在现场测定()。

A.苯并芘

B.余氯

C.四氯化碳

D.硝酸盐氮

E.铬(六价)

题型:问答题 案例分析题

凡具有燃烧、爆炸、毒害、腐蚀、放射性等性质的货,都属危险货。

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