问答题

简答题 背景资料:
某桥梁工程在施工前,项目经理部为了保证安全,防止安全隐患的出现,在基坑开挖时采取了防坍塌措施,具体的措施有:①确定围护方法根据土质和深度来确定。②机械开挖不支撑基坑时,每次挖方修坡深度不得超过1.5m。③人工开挖不支撑基坑时,每次挖方修坡深度不得超过0.5m。④任何情况下,在基坑顶边弃土时,弃土堆坡脚至挖方上边缘的距离不得大于1.2m,堆土高度不得超过1.5m。
在施工过程中,一场大雨使开挖的基坑坍塌,幸好无人员伤亡。
问题:
1.逐条判断具体的防坍塌措施是否妥当,如不妥,请改正。
2.处理安全隐患应遵循的原则是什么?
3.简述安全事故处理的程序。
4.针对基坑开挖时的坍塌事故应提出怎样的应急措施?

【参考答案】

1.具体的防坍塌措施妥当与否的判断:④妥当。②不妥。正确做法:机械开挖不支撑基坑时,每次挖方修坡深度不得超过1m。③不妥......

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第二节 完形填空(共20小题;每小题1.5分,满分30分)阅读下面短文,掌握其大意。然后从36~55各题所给的...


单项选择题第二节 完形填空(共20小题;每小题1.5分,满分30分)
阅读下面短文,掌握其大意。然后从36~55各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。
When Alice started to cycle home from Jenny’s house, she wasn’t nervous. She was certainly not afraid of the dark.36 , it was only a 15,ncnule ride home. But halfway there, she began to wish that he hadn’t been so 37 .
As she rounded a sarp benu, it suddenly 38 cold-very cold. Alice’s breath became puffs of white cloud and her legs aso cale that it became hard to ride.
With her liart beating fast, she struggled so hard to move 39 that the didn’t hear the car which suddenly appeared beside her. She stopped by the road. The big black car also 40 ,Slowly, the passenger-window began to slide down. Alice held her breath. In the soft light inside the car, something 41 . Then, the light brightened and Alice was staring at a sweet, grey-haired old lady. “Hello, dear,”said the old lady. “I need 42 . I’m afraid I’m lost. I need to find the nearest airport. I must be there in the next five minutes.”
“Airport? You 43 are lost,”Alice said. “You need to go back five kilometers 44 you reach the”
T-junction.Turn left and45 for about another 10 kilometers to the main highway.From there,just follow the46 to the airport.But I’m afraid there’s no47 you’ll get there in five minutes!”
“Thank you very much,dearn eplied the old lady.“Don’t worry-I’ll48 it time.”
The49 up and the started off.A little way ahead,it50 and with hedlights filashing, it drove past Alice. But then, mething51 happened.The car hegary changing flrst, its color52 from black to silvey grew when, the wheels began disappearing, but the car to move forward,53 just above the grolld. As the car54 into the dark sky, the big red tail-lights grew larger and larger and glowed more and more brightly.With a faint whistling55 ,the car was gone in seconds,leaving Alice shaking her head in disbelief…
36____
A.However
B.Besides
C.Therefore
D.Othrwise

A.5分,满分30分)
阅读下面短文,掌握其大意。然后从36~55各题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。
When
B.36
C.
As
D.
With
E.”
“Airport?
F.Turn
G.From
H.But
I.“Don’t
J.”
The49
K.A
L.The
M.With
N.However
O.Besides
C.Therefore
D.Othrwise