问题 单项选择题

某7层住宅楼采用天然地基,基础埋深在地面下2m,地震设防烈度为7度,设计基本地震加速度值为0.1g,设计地震分组为第一组,场地典型地层条件如题35表所示,拟建场地地下水位深度为1.00m,根据《建筑抗震设计规范》(GB 50011—2001),场地液化指数最接近()。

题35表

A.4.5

B.7.0

C.8.2

D.9.6

答案

参考答案:B

解析:

据《建筑抗震设计规范》(GB 50011—2001)计算如下:

据第4.3.3条、第4.3.4条:第2层和第4层可判为不液化,N0=6,判别深度为15 m。

液化点为4.0 m和5.5 m两点,土层及其权函数关系如下图。

4.0 m标准贯入点代表的土层范围为自3.0 m至标准贯入代表的深度为自4.75 m至6.0 m,据第4.3.5条液化指数ILE

答案(B)正确。

多项选择题 案例分析题
单项选择题

Strange things have been happening to England. Still (1) from the dissolution of the empire in the years (2) World War Ⅱ, now the English find they are not even British. As the cherished "United Kingdom" breaks into its (3) parts, Scots are clearly (4) and the Welsh, Welsh. But who exactly are the English What’s left of them, with everything but the (5) half of their island taken away

Going back in time to (6) roots doesn’t help. First came the Celts, then the Romans, then Angles, Saxons, Jutes, Danes. Invasion after invasion, until the Norman Conquest. English national identity only seemed to find its (7) later, on the shifting sands of expansionism, from Elizabethan times onwards. The empire seemed to seal it. But now there’s just England, (8) of a green island in the northern seas, lashed by rain, scarred by two (9) of vicious industrialization fallen (10) dereliction, ruined, as D.H. Lawrence thought, by "the tragedy of ugliness," its abominable architecture.

Of all English institutions, the one to (11) on would surely be the pub. Shelter to Chaucer’s pilgrims, home to Falstaff and Hal, throne of felicity to Dr. Johnson, the pub- that smoky, yeasty den of jollity-is the womb of (12) , if anywhere is. Yet in the midst of this national (13) crisis, the pub, the mainstay of English life, a staff driven (14) into the sump of history, (15) as the Saxons, is suddenly dying and evolving at (16) rates. Closing at something like a rate of more than three a day, pubs have become (17) enough that for the first time since the Domesday Book, more than half the villages in England no longer have one. It’s a rare pub that still (18) , or even limps on, by being what it was (19) to be: a drinking establishment. The old (20) of a pub as a place for a "session," a lengthy, restful, increasingly tipsy evening of swigging, is all but defunct.

12()

A.Englishness

B.Britishness

C.Scottishness

D.Welshness