# Force Analysis of Circular Diaphragm Wall Based on Circular Cylindrical Shell Theory
## 2 Project Profile
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
\begin{tabular}{c} **Working** \\ **Condition** \\ \end{tabular} & **Construction Content** & **Start Date** & **Finish Date** & **Thickness/m** \\ \hline \multirow{2}{*}{W5} & Excavated the 5 th layer of soil & 14 September 2022 & 19 September 2022 & 3 \\ \cline{2-5}  & Constructed the 5 th lining layer of reinforced concrete & 18 September 2022 & 23 September 2022 & 3 \\ \hline \multirow{2}{*}{W6} & Excavated the 6 th layer of soil & 20 September 2022 & 26 September 2022 & 3 \\ \cline{2-5}  & Constructed the 6 th lining layer of reinforced concrete & 24 September 2022 & 29 September 2022 & 3 \\ \hline \multirow{2}{*}{W7} & Excavated the 7 th layer of soil & 27 September 2022 & 4 October 2022 & 3 \\ \cline{2-5}  & Constructed the 7 th lining layer of reinforced concrete & 30 September 2022 & 6 October 2022 & 3 \\ \hline \multirow{2}{*}{W8} & Excavated the 8 th layer of soil & 5 October 2022 & 10 October 2022 & 3 \\ \cline{2-5}  & Constructed the 8 th lining layer of reinforced concrete & 7 October 2022 & 12 October 2022 & 3 \\ \hline \multirow{2}{*}{W9} & Excavated the 9 th layer of soil & 11 October 2022 & 15 October 2022 & 3 \\ \cline{2-5}  & Constructed the 9 th lining layer of reinforced concrete & 13 October 2022 & 18 October 2022 & 3 \\ \hline \multirow{2}{*}{W10} & Excavated the 10 th layer of soil & 16 October 2022 & 22 October 2022 & 3 \\ \cline{2-5}  & Constructed the 10 th lining layer of reinforced concrete & 19 October 2022 & 25 October 2022 & 3 \\ \hline \multirow{2}{*}{W11} & Excavated the 11 th layer of soil & 23 October 2022 & 28 October 2022 & 3 \\ \cline{2-5}  & Constructed the 11 th lining layer of reinforced concrete & 26 October 2022 & 1 November 2022 & 3 \\ \hline \multirow{2}{*}{W12} & Excavated the 12 th layer of soil & 29 October 2022 & 5 November 2022 & 3 \\ \cline{2-5}  & Constructed the 12 th lining layer of reinforced concrete & 2 November 2022 & 8 November 2022 & 3 \\ \hline \multirow{2}{*}{W13} & Excavated the 13 th layer of soil & 6 November 2022 & 11 November 2022 & 3 \\ \cline{2-5}  & Constructed the 13 th lining layer of reinforced concrete & 9 November 2022 & 17 November 2022 & 3 \\ \hline \multirow{2}{*}{W14} & Excavated the 14 th layer of soil & 12 November 2022 & 25 November 2022 & 3 \\ \cline{2-5}  & Constructed the 14 th lining layer of reinforced concrete & 18 November 2022 & 28 November 2022 & 3 \\ \hline \multirow{2}{*}{W15} & Excavated the 15 th layer of soil & 26 November 2022 & 5 December 2022 & 3 \\ \cline{2-5}  & Constructed the 15 th lining layer of reinforced concrete & 29 November 2022 & 30 December 2022 & 3 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: \(Cont.\) \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Code**} & \multirow{2}{*}{**Classification**} & \multirow{2}{*}{**Thickness/m**} & **Bulk** & **Young’s** & **Poisson’s** & **Cohesion/kPa** & **Internal Friction** \\  & & & **(kN/m3)** & **Modulus/MPa** & **Ratio** & **Angle/\({}^{\circ}\)** \\ \hline \multirow{2}{*}{\(\backslash\)1} & Silty clay & 1.26 & 18.62 & 129 & 0.3 & 21.5 & 11.3 \\  & MSC & 7.6 & 17.64 & 93 & 0.3 & 10.3 & 6.6 \\  & Silt & 16 & 18.5 & 305 & 0.3 & 10 & 20 \\  & Fine sand & 14 & 19 & 341 & 0.3 & 0 & 24 \\  & FBS & 2 & 22 & 975 & 0.3 & 0 & 45 \\  & HWAS & 3 & 22.83 & 1227 & 0.2 & 150 & 25 \\  & WCC & 2.1 & 23.03 & 4117 & 0.2 & 200 & 40 \\  & MCAS & 11.54 & 23.42 & 4408 & 0.2 & 200 & 30 \\ \hline \hline \end{tabular} Note: MSC represents the mucky silty clay; FBS represents the fine boulder soil; HWAS represents the highly weathered argillaceous sandstone; WCC represents the weakly consolidated conglomerate; MCAS represents the moderately consolidated argillaceous sandstone.  
\end{table} 
Table 2: Physical and mechanical parameters of the soil around the circular diaphragm wall. Figure 1: Design size of the north anchorage (the unit of elevation is “m”, and the rest are in “cm”). Figure 2: Layered excavation schematic diagram of the foundation pit (the unit is “m”).