1、按樁的承載性狀對(duì)樁進(jìn)行分類,樁的類型可分為( )?
A.摩擦型樁和端承型樁;
B.摩擦端承樁和端承樁;
C.摩擦樁和摩擦端承樁;
D.灌注樁和預(yù)制樁;
答案:A
2、當(dāng)樁的l/D不很大,樁端持力層為較堅(jiān)硬的粘性土、粉性土和砂類土?xí)r,這類樁按( )設(shè)計(jì)?
A.端承樁;
B.摩擦樁;
C.端承摩擦樁;
D.摩擦端承樁;
答案:D
3、當(dāng)樁的l/D較小,樁身穿越軟弱土層,樁端設(shè)置在密實(shí)砂層,碎石類土層中,微風(fēng)化巖層中,這類樁應(yīng)按( )設(shè)計(jì)?
A.端承樁;
B.摩擦樁;
C.摩擦樁型;
D. 端承摩擦樁;
答案:A
4、當(dāng)樁設(shè)置于深厚的軟弱土層中,無較硬土層作為樁端持力層,或樁端有較堅(jiān)硬持力層但樁的l/D很大,這類樁應(yīng)按( )設(shè)計(jì)?
A端承樁;
B.摩擦樁;
C.端承摩擦樁;
D.摩擦端承樁;
答案:B
5、對(duì)于豎向抗壓樁,除應(yīng)進(jìn)行豎向承載力計(jì)算外,必要時(shí),還需進(jìn)行( )?
A.樁身強(qiáng)度和抗裂計(jì)算;
B.水平承載力和位移驗(yàn)算;
C.抗拔計(jì)算;
D.樁基沉降計(jì)算和軟弱下臥層及負(fù)摩阻力驗(yàn)算;
答案:D
A.摩擦型樁和端承型樁;
B.摩擦端承樁和端承樁;
C.摩擦樁和摩擦端承樁;
D.灌注樁和預(yù)制樁;
答案:A
2、當(dāng)樁的l/D不很大,樁端持力層為較堅(jiān)硬的粘性土、粉性土和砂類土?xí)r,這類樁按( )設(shè)計(jì)?
A.端承樁;
B.摩擦樁;
C.端承摩擦樁;
D.摩擦端承樁;
答案:D
3、當(dāng)樁的l/D較小,樁身穿越軟弱土層,樁端設(shè)置在密實(shí)砂層,碎石類土層中,微風(fēng)化巖層中,這類樁應(yīng)按( )設(shè)計(jì)?
A.端承樁;
B.摩擦樁;
C.摩擦樁型;
D. 端承摩擦樁;
答案:A
4、當(dāng)樁設(shè)置于深厚的軟弱土層中,無較硬土層作為樁端持力層,或樁端有較堅(jiān)硬持力層但樁的l/D很大,這類樁應(yīng)按( )設(shè)計(jì)?
A端承樁;
B.摩擦樁;
C.端承摩擦樁;
D.摩擦端承樁;
答案:B
5、對(duì)于豎向抗壓樁,除應(yīng)進(jìn)行豎向承載力計(jì)算外,必要時(shí),還需進(jìn)行( )?
A.樁身強(qiáng)度和抗裂計(jì)算;
B.水平承載力和位移驗(yàn)算;
C.抗拔計(jì)算;
D.樁基沉降計(jì)算和軟弱下臥層及負(fù)摩阻力驗(yàn)算;
答案:D