题目内容

背景资料
某港的理论深度基准面与黄海平均海平面的高程差为2.0m,该港地形图中标注的港口港池泥面高程为一14.0m,某施工单位需通过港池拖运至安装地,沉箱拖运的最小稳定吃水为13m,沉箱拖运时的潮高为0.5m,富余水深按规范规定不得小于0.5m。
问题
1.沉箱拖运是否可行?计算水深说明理由。
2.如果拖运可行,潮高至少要多少米?在正常航速条件下,拖轮对沉箱的曳引作用点设在什么位置拖运最为稳定?
3.沉箱浮运拖带进行前,要进行哪些验算? 4.沉箱在预制场下水有哪些方法?(举出三种方法)。

查看答案
更多问题

In January 2010 Ami took over an old warehouse with the intention of opening an art gallery. As the warehouse had to be converted, Ami entered into two contracts, one with Bry to do all the necessary plastering and one with Cis, who was to do all the necessary painting. Both Bry and Cis were to be paid £5,000. Both received initial payments of £1,000 and agreed to have the work completed on 31 March, as the art gallery had to be ready for its fi rst exhibition on 1 May.
At the end of February, Bry told Ami that he would not complete the plastering in time unless she agreed to increase his payment by a further £1,000. Ami agreed to pay the increased sum in order to ensure that the job was done on time. She then thought it was only fair that she should increase the amount of money promised to Cis by the same amount.
However, on completion of the work on time Ami refused to make either of the additional payments to Bry or Cis, beyond the original contractual price.
Required:
Advise Bry and Cis whether they have any rights in law to enforce Ami’s promise to pay them an extra £1,000.

背景资料
某10万吨级高桩煤码头工程,桩基础采用01200mm的钢管桩,上部结构采用钢筋混凝土梁板结构。业主通过招标,选定了某监理机构;码头主体工程由某施工单位中标承担施工任务,在承包合同中明确,项目中的钢管桩由业主指定某钢结构厂供桩并运至现场,业主单位与供桩单位签订了合同;码头上的装、卸煤设备安装工程由中标承包主体工程的施工单位通过招标另行发包。在施工的过程中,因钢管桩供货单位供桩不及时和部分钢管桩的质量没有达到规范要求的标准等情况,使主体工程的沉桩进度延误了15d,并进一步使设备安装单位的工期延误了7d。
问题
1.对于工程用的钢管桩可否视为"甲供构件”?为什么?钢管柱的验收应由哪家单位负责组织?哪些单位参加?验收的主要项目有哪些?
2.对上述因供桩不及时和部分桩质量不合格所造成的工程延误,码头主体施工单位可否进行索赔?涉及工程的各主体之间可能因此发生怎样的索赔关系?
3.煤码头主体施工单位应在何时对装、卸煤置备安装分包的投标单位进行考察?考察的主要内容是什么?
4.整个工程的竣工验收由哪家单位提出申请?简要说明竣工验收的程序。

背景资料 国内某新建港区位于淤泥质海岸且附近有渔民养殖区,航道总长25.5km,疏浚工程量2500万m3,其中淤泥占20%、淤泥质粉土占55%、中等密实砂质粉土占25%,施工工期为330d,每天实行24h作业,施工船舶选用13500m3自航耙吸挖泥船,配备φ900mm排泥管线将疏浚土全部直接吹填到吹填区,施工期时间利用率为70%,上述疏浚土质的施工期平均运转周期生产率见下表。
土质淤泥淤泥质粉土中等密实砂质粉土平均运转周期生产率(m3/h)15001300900问题
1.简述提高舱内泥浆浓度的方法。
2.采取哪些具体措施可以防止施工期间浑浊物扩散对附近养殖场的影响?
3.施工中针对本工程三种土质各应选用何类耙头?
4.针对本工程三种土质选取挖泥施工时挖泥船对地航速是多少?
5.为满足本工程工期需配备几艘13500m3自航耙吸挖泥船?(列出主要计算过程,结果取整数)

公务员奖励制度有什么作用?

答案查题题库