關(guān)于溝槽開(kāi)挖下列說(shuō)法錯(cuò)誤的是(?。?/span>
- A
當(dāng)溝槽挖深較大時(shí),應(yīng)按每層3m進(jìn)行分層開(kāi)挖
- B
采用機(jī)械挖槽時(shí),溝槽分層的深度按機(jī)械性能確定
- C
人工開(kāi)挖多層溝槽的層間留臺(tái)寬度:放坡開(kāi)槽時(shí)不應(yīng)小于0.8m,直槽時(shí)不應(yīng)小于0.5m,安裝井點(diǎn)設(shè)備時(shí)不應(yīng)小于1.5m
- D
槽底原狀地基土不得擾動(dòng)