年终结转后,“利润分配一未分配利润”科目贷方余额反映本年实现的净利润( )。
【背景资料】某施工单位承建高速铁路某隧道工程:该隧道正洞长12600m,进口平行导坑长4400m,出口平行导坑长4500m。隧道围岩岩性主要为灰岩,局部为花岗岩,全隧设计以Ⅱ级、Ⅲ级围岩为主;局部地段隧道埋深浅,围岩破碎、软弱,地下水发育,设计为V级围岩,地表有大量稻田,村庄密集。根据施工组织设计,全隧按进、出口两个工区组织施工。施工中发生以下事件:
事件1:项目经理部计划在进、出口平行导坑均采用压入式管道通风方案;正洞采用混合式管道通风方案。
事件2:正当对隧道进口正洞掌子面进行钢拱架支护作业时,监控量测组反映仰拱开挖地段的隧道拱顶下沉量测数据发生突变,建议值班领工员采取措施。该领工员经过仔细观察,发现该段隧道拱顶喷射混凝土表面已局部开裂,情况比较危险。为了避免隧道塌方,他立即安排一部分掌子面现场作业人员在隧道拱顶变形部位补打锚杆,加强初期支护。
事件3:在隧道出口正洞开挖时,掌子面围岩突然变差,围岩破碎,渗水量明显增大。施工单位立即将这一情况报告给监理单位,申请将掌子面前10m范围的隧道围岩由原设计Ⅲ级围岩变更为Ⅴ级围岩。监理工程师现场核实后随即签发变更指令。
2014案例真题:某施工单位承担了一项直埋光缆工程,光缆进场时,施工人员除了查看光缆出厂检验记录外,还抽测了部分光缆的光电性能且留有记录,路由复测时,初步确定了另一光缆交越位置,并做了标示。
【背景资料】某机场建设工程位于丘陵地带,飞行区指标为4D.跑道结构为:沥青混凝土柔性道面面层;石灰粉煤灰稳定碎石基层。施工工期比较紧张。由于工期紧迫,施工单位编制的施工组织设计经项目经理部经理签批后开始准备施工。施工正值雨季,施工单位做了雨期施工准备,购置了防雨设备,要求值班巡逻,发现险情立即排除,施工单位只准备了轻型压路机,认为通过增加碾压遍数,可以代替重型压路机。
某机电工程采用EPC/交钥匙总承包的方式进行公开招标,并在国家发展改革委依法指定的媒体上发布了招标公告和资格预审公告。公告中明确说明了工程的基本情况,投标人需提交标书费用、押金、投标保函的要求,投标人获取和送达标书的方式、地点和起止时间,开标日期和地点。
经资格预审后,共有A、B、C、D、E五家总承包公司投递了资料,并按规定时间和要求完成了标书的购买、编写和投标。其中D公司未办理投标保函,被招标单位取消资格。
开标后,评委认为C公司不符合投标资格,故也被取消投标资格,经评委公平、公正评审后,A公司中标。
开工后,A公司把一台压力球形储罐的安装工程分包给具有相应安装资质的E公司施工,由于球形储罐体积大,解体运输到现场,E公司办完压力容器进场安装的相关手续后,在现场地面对球形储罐组对焊接,整体吊装。
项目实施过程中,A公司因高空坠落死亡1人,设备吊装重伤3人。
设备试运行时,一台主机试运行时振动过大,经分析,本台设备垫铁安装时无垫铁布置图,且不是采用坐浆法施工,而是采用老式垫铁与基础研磨的施工方法,振动原因可能是垫铁的安装质量出了问题。
案例四
【背景资料】
某城市热力管道工程,施工单位根据设计单位提供的平面控制网点和城市水准网点,按照支线、支干线、主干线的次序进行了施工定线测量后,用皮尺丈量定位固定支架、补偿器、阀门等的位直。在热力管道实施焊接前,根据焊接工艺试验结果编写了焊接工艺方案,并按该工艺方案实施焊接。在焊接过程中,焊接纵向焊缝的端部采用定位焊,焊接温度在5℃以下焊接时,先进行预热后焊接,焊缝部位的焊渣在焊缝未完全冷却之前经敲打而除去。在焊接质量检验过程中,发现有不合格的焊接部位,经过4次返修后达到质量要求标准。
[A] Some archaeological sites have always been easily observable—for example, the Parthenon in Athens, Greece; the pyramids of Giza in Egypt; and the megaliths of Stonehenge in southern England. But these sites are exceptions to the norm. Most archaeological sites have been located by means of careful searching, while many others have been discovered by accident. Olduvai Gorge, an early hominid site in Tanzania, was found by a butterfly hunter who literally fell into its deep valley in 1911. Thousands of Aztec artifacts came to light during the digging of the Mexico City subway in the 1970s.
[B] In another case, American archaeologists René Million and George Cowgill spent years systematically mapping the entire city of Teotihuacán in the Valley of Mexico near what is now Mexico City. At its peak around AD 600, this city was one of the largest human settlements in the world. The researchers mapped not only the city’s vast and ornate ceremonial areas, but also hundreds of simpler apartment complexes where common people lived.
[C] How do archaeologists know where to find what they are looking for when there is nothing visible on the surface of the ground? Typically, they survey and sample (make test excavations on) large areas of terrain to determine where excavation will yield useful information. Surveys and test samples have also become important for understanding the larger landscapes that contain archaeological sites.
[D] Surveys can cover a single large settlement or entire landscapes. In one case, many researchers working around the ancient Maya city of Copán, Honduras, have located hundreds of small rural villages and individual dwellings by using aerial photographs and by making surveys on foot. The resulting settlement maps show how the distribution and density of the rural population around the city changed dramatically between AD 500 and 850, when Copán collapsed.
[E] To find their sites, archaeologists today rely heavily on systematic survey methods and a variety of high-technology tools and techniques. Airborne technologies, such as different types of radar and photographic equipment carried by airplanes or spacecraft, allow archaeologists to learn about what lies beneath the ground without digging. Aerial surveys locate general areas of interest or larger buried features, such as ancient buildings or fields.
[F] Most archaeological sites, however, are discovered by archaeologists who have set out to look for them. Such searches can take years. British archaeologist Howard Carter knew that the tomb of the Egyptian pharaoh Tutankhamun existed from information found in other sites. Carter sifted through rubble in the Valley of the Kings for seven years before he located the tomb in 1922. In the late 1800s British archaeologist Sir Arthur Evans combed antique dealers’ stores in Athens, Greece. He was searching for tiny engraved seals attributed to the ancient Mycenaean culture that dominated Greece from the 1400s to 1200s BC. Evans’s interpretations of these engravings eventually led him to find the Minoan palace at Knossos (Knosós), on the island of Crete, in 1900.
[G] Ground surveys allow archaeologists to pinpoint the places where digs will be successful. Most ground surveys involve a lot of walking, looking for surface clues such as small fragments of pottery. They often include a certain amount of digging to test for buried materials at selected points across a landscape. Archaeologists also may locate buried remains by using such technologies as ground radar, magnetic-field recording, and metal detectors. Archaeologists commonly use computers to map sites and the landscapes around sites. Two- and three-dimensional maps are helpful tools in planning excavations, illustrating how sites look, and presenting the results of archaeological research.
41. |
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【背景资料】
某平原地区大(1)型水库(骆阳湖)泄洪闸闸孔36孔,设计流量4000m³/s,校核流量7000m³/s。该泄洪闸建于20世纪60年代末,2013年进行除险加固。主要工程内容有:(1)桥头堡、启闭机房拆除重建;(2)公路桥桥面及栏杆翻修;(3)闸墩、闸底板混凝土表面防碳化处理;(4)闸底板、闸墩向上游接长5m;(5)原弧形钢闸门更换为新弧形钢闸门;(6)原卷扬启闭机更换为液压启闭机;(7)上游左右侧翼墙拆除重建。主要工程量:混凝土4.6万m³,土方42万m³。金属结构1086t,总投资1.22亿元。
施工导流采用全段围堰法,围堰为土围堰,级别为3级,长410m,堰顶高程30.3m。施工期水库设计静水位27.8m,波浪高度1.5m。围堰采用水中倒土双向进占法施工,总填筑方量30万m³。
根据施工需要,现场布置有混凝土拌合系统、钢筋加工厂、木工厂、临时码头、配电房等临时设施。其平面布置示意图如图3所示,图中①、②、③、④、⑤为临时设施(混凝土拌和系统、油库、机修车间、钢筋加工厂、办公生活区)代号。
混凝土表面防碳化处理采用ST-9608聚合物防水防腐涂料。闸底板和闸墩向上游接长5m,采用锚固技术使新、老闸底板和闸墩连为一体。