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某城市跨线立交桥工程，桥梁全长811m，共计24跨，桥梁下部结构有22根直径1.5m的钻孔灌注桩，采用反循环钻机成孔。项目部针对钻孔桩数量多，经招标程序将钻孔作业分项工程分包给甲机械施工公司，由甲公司负责组织钻孔机械进行钻孔作业。施工过程中现场发生如下事件：事件一：项目部在现场文明施工检查时发现：原有泥浆沉淀池已淤积，正在进行钻孔施工的泥浆水沿排水沟直接流到工地附近的河道里，现场土堆旁有未燃尽的油毡碎片。事件二：甲公司液压起重机起吊钢筋笼时，因钢筋笼的U形吊环与主筋焊接不牢，起吊过程中钢筋笼倾倒，所幸作业人员及时避开，没有造成人员伤亡，但将泥浆搅拌棚砸坏。项目经理组织人员清理现场，并开展事故调查分析，对分包方进行罚款处理，调查报告完成后，经项目经理签字，上报了企业负责安全的部门。事件三：受钻孔机械故障影响，项目部要求甲公司增加钻孔机械，以保障钻孔作业的计划进度。因甲公司钻机在其他工地，需等5d后才能运到现场，等到该桥全部钻孔桩完成时已拖延工期13d。问题： 事件二的事故处理程序是否妥当？如果不妥当，写出正确做法。
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第二篇A Very Slow Ride The surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface. The earth has an outer shell of rigid pieces called tectonic plates (地壳构造板块).The plates include both ocean floor and dry land.Some have whole continents on top of them.The continents on top of the plates are just going along for a slow ride,moving only about four inches per year.But even this small movement causes three types of big interactions. One type is ocean ridges.These ridges develop in places where two plates are moving away from each other.As the plates separate,hot magma(岩浆)flows up to fill the space.New crust(地壳)builds up on the plate boundaries and causes ocean ridges.These ridges form long mountain ranges,which only rise above the ocean surface in a few places. Another type of reaction-trenches-occurs between two plates that are moving toward each other.As the plates meet,one bends downward and plunges undemeath the other.This forms deep ocean trenches.The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet.This is the lowest point on the ocean floor.If the leading edges of the two colliding plates carry continents,then the layers of rock in the overriding plate crumple(变皱)and fold.A plate that carried what is now lndia collided with the southern edge of the plate that carried Europe and most of Asia.This caused the Himalayas,the world’s highest mountains. The third reaction is transform faults(转换断层).These faults occur where two plates that are traveling in opposite directions slide past each other.Severe earthquakes can occur.The San Andreas Fault in Califomia is a good example of this type of movement. The word“stable”(paragraph 1)means
A Heroic Woman The whole of the United States cheered its latest hero,Ashley Smith,with the Federal Bureau of lnvestigation saying it was planning to give a big reward to her for having a brave heart and wise mind. （46）She was moving into her apartment in Atlanta,Georgia early on the morning of March 12,when a man followed her to her door and put a gun to her side.“I started walking to my door,and I felt really,really afraid,”she said in a TV interview last week.The man was Brian Nichols,33.He was suspected of killing three people at an Atlanta courthouse(法院)on March 11 and later of killing a federal agent.（47） Nichols tied Smith up with tape,but released her after she repeatedly begged him not to take her life.“I told him if he hurt me,my little girl wouldn’t have a mummy,”she said.In order to calm the man down,she read to him from“The Purpose-Driven Life”,a best-selling religious book.He asked her to repeat a paragraph“about what you thought your purpose in life was-what talents were you given.”（48） “I basically just talked to him and tried to gain his trust,”Smith said. Smith said she asked Nichols why he chose her.“He said he thought I was an angel sent from God,and we were Christian sister and brogher,”she said.“And that he was lost,and that God led him to me to tell him that he had hurt a lot of peopole.”（49）She said Nichols was surprised when she made him breakfast and that the two of them watched television coverage(报道)of the police hunt for him.“I cannot believe that’s me,”Nichols told the woman.Then,Nichols asked Smith what she thought he should do.She said,“I think you should turn yourself in.If you don’t,lots more people are going to get hurt.” Eventually,he let her go.（50）A US$60,000 reward had been posted for Nichols’ capture.Authorities said they did not yet know if Smith would be eligible(有资格的)for that money. 50（）
When We Are Asleep Everyone dreams,but some peopole never recall their dreams,or do so very rarely.Other people always wake up with vivid recollections (记忆) of their dreams,though they forget them very quickly.In an average night of eight hours’ sleep,an average adult will dream for around one hundred minutes,probably having three to five dreams,each lasting from ten to thirty minutes. Scientists can detect when someone is having a dream by using an instrument which measures the electrical waves in the brain.During dreaming,these waves move more quickly.Breathing and pulse rate also increase,and there are rapid eye movements under the lids,just as though the dreamer were really looking at moving objects.These signs of dreaming have been detected in all mammals (哺 乳动物) studied,including dogs,monkeys,cats,and elephants,and also some birds and reptiles (爬行动物).This period of sleep is called the“D”state for around 50% of their sleep;the period reduces to around 25% by the age of 10. Dreams take the form of stories,but they may be strange and with incidents not connected,which make little sense.Dreams are seldom without people in them and they are usually about people we know.One estimate says that two-thirds of the“cast”of our dream dramas are friends and relations.Vision seems an essential part of dreams,except for people blind from birth.Sound and touch are senses also often aroused,but smell and taste are not frequently involved.In“normal”dreams,the dreamer may be taking part,or be only an observer.But he or she cannot control what happens in the dream. However,the dreamer does have control over one type of dream.This type of dream is called a“lucid”(清醒的) dream.Not everyone is a lucid dreamer.Some people are occasional lucid dreamers.Others can dream lucidly more or less all the time.In a lucid dream,the dreamer knows that he is dreaming. When we dream,there is less movement of electrical waves in our brains.
（三）背景资料某施工总承包单位承担一项建筑基坑工程的施工。基坑开挖深度12m，基坑南侧距坑边6m 处有一栋6 层住宅楼。基坑土质状况从地面向下依次为：杂填土0～2m，粉质土2～5m，砂质土15～10m，粘性土哟10 ～12m，砂质土12～18m。上层滞水水位在地表以下5m（渗透系数为0.5m／d）,地表下18m 以内无承压水。基坑支护设计采用灌注桩加锚杆。施工前，建设单位为节约投资，指示更改设计，除南侧外其余三面均采用土钉墙支护，垂直开挖：基坑在开挖过程中北侧支护出现较大变形，但一直未被发现，最终导致北侧支护部分坍塌。事故调查中发现：（1）施工总承包单位对本工程作了重大危险源分析，确认南侧毗邻建筑物、临边防护、上下通道的安全为重大危险源，并制订了相应的措施，但未审批。（2）施工总承包单位有健全的安全制度文件。（3）施工过程中元任何安全检查记录、交底记录及培训教育记录等其他记录资料。问题 施工总承包单位还应采取哪些有效措施才能避免类似基坑支护坍塌？
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