土釘墻支護(hù)計(jì)算書9米深

1、土釘墻支護(hù)計(jì)算書土釘墻支護(hù)計(jì)算書計(jì)算依據(jù)：1、《建筑基坑支護(hù)技術(shù)規(guī)程》JGJ12020122、《建筑施工計(jì)算手冊(cè)》江正榮編著3、《實(shí)用土木工程手冊(cè)》第三版楊文淵編著4、《施工現(xiàn)場(chǎng)設(shè)施安全設(shè)計(jì)計(jì)算手冊(cè)》謝建民編著5、《地基與基礎(chǔ)》第三版土釘墻需要計(jì)算其土釘?shù)目估休d力和土釘墻的整體穩(wěn)定性。一、參數(shù)信息一、參數(shù)信息1、基本參數(shù)、基本參數(shù)側(cè)壁安全級(jí)別二級(jí)基坑開挖深度h(m)9土體的滑動(dòng)摩擦系數(shù)1.3條分塊數(shù)10土釘墻計(jì)算寬度B(m)15基坑外

2、側(cè)水位到坑頂?shù)木嚯x(m)1.2基坑內(nèi)側(cè)水位到坑頂?shù)木嚯x(m)9.5基坑地面至抗隆起計(jì)算平面之間的距離D(m)0.52、荷載參數(shù)、荷載參數(shù)序號(hào)類型面荷載q(kPa)荷載寬度b(m)基坑邊線距離a(m)1局布荷載2.5623、土層參數(shù)、土層參數(shù)序號(hào)土名稱土厚度(m)坑壁土的重度γ(kNm3)坑壁土的內(nèi)摩擦角φ()粘聚力C(kPa)極限摩擦阻力(kPa)飽和重度(kNm3)1填土318181220202粘性土3.519141060193粘性土

3、3.519201860224、土釘墻布置數(shù)據(jù)、土釘墻布置數(shù)據(jù)放坡參數(shù)：第2層土：1.23m(0)H2=[∑γ1h1]γsati=[21.6]20=1.08m]20=1.08mPak2上=[γsat2H2γw(∑h1ha)]Ka22c2Ka20.5γw(∑h1ha)=[201.0810(1.21.2)]0.5282120.5280.510(1.21.2)=6.034kNm2Pak2下=[γsat2(H2h2)γw(∑h1ha)]Ka22c

4、2Ka20.5γw(∑h1ha)=[20(1.081.8)10(31.2)]0.5282120.5280.510(31.2)=21.47kNm2第3層土：34m(0)H3=[∑γ2h2]γsati=[57.6]19=3.032m]19=3.032mPak3上=[γsat3H3γw(∑h2ha)]Ka32c3Ka30.5γw(∑h2ha)=[193.03210(31.2)]0.612100.610.510(31.2)=26.54kNm2P

5、ak3下=[γsat3(H3h3)γw(∑h2ha)]Ka32c3Ka30.5γw(∑h2ha)=[19(3.0321)10(41.2)]0.612100.610.510(41.2)=42.03kNm2第4層土：46.5m(0)H4=[∑γ3h3]γsati=[76.6]19=4.032m]19=4.032mPak4上=[γsat4H4γw(∑h3ha)]Ka42c4Ka40.5γw(∑h3ha)=[194.03210(41.2)]0.

6、612100.610.510(41.2)=42.03kNm2Pak4下=[γsat4(H4h4)γw(∑h3ha)]Ka42c4Ka40.5γw(∑h3ha)=[19(4.0322.5)10(6.51.2)]0.612100.610.510(6.51.2)=80.755kNm2第5層土：6.59m(0)H5=[∑γ4h4]γsati=[124.1]22=5.641m]22=5.641mPak5上=[γsat5H5γw(∑h4ha)]Ka

7、52c5Ka50.5γw(∑h4ha)=[225.64110(6.51.2)]0.492180.490.510(6.51.2)=62.64kNm2Pak5下=[γsat5(H5h5)γw(∑h4ha)]Ka52c5Ka50.5γw(∑h4ha)=[22(5.6412.5)10(91.2)]0.492180.490.510(91.2)=102.34kNm21）水平荷載）水平荷載臨界深度：Z0=Pak2下h2(Pak2上Pak2下)=21.