TY  - Data
T1  - West Island Slope Section DCM in-situ test dataset (2019)
A1  - guan weidong
DO  - 10.12072/ncdc.nieer.db2818.2023
PY  - 2023
DA  - 2023-06-13
PB  - National Cryosphere Desert Data Center
AB  - The soft foundation of the Xidao slope section of the Shenzhong Channel is treated with deep cement mixing piles. The thickness of the silt soil (including 1 layer of silt, 2 layers of silt, 3 layers of silty soil, and 2-4 layers of silt) below the bottom of the Xidao slope section tunnel is 3-18m, which is thicker than the silt layer of the Hong Kong Zhuhai Macao Bridge immersed tube tunnel. Due to sand mining disturbance, the in-situ cross plate strength of the 1 layer of silt is only 4.3-8.4kPa, which is a flowing silt. The maximum thickness of the layer of silt below the excavation line of the E1 pipe section foundation trench is 5m. The surface floating mud at the bottom of the trench needs to be excavated, and the floating mud on both sides of the foundation trench needs to be blocked from flowing into the trench to ensure that the trench can be formed. At the same time, the slope section of Xidao Island is located within the range of the sand pit, and from the comparison between the detailed survey and the preliminary survey, there are still changes in the strata inside the sand pit excavated from 2015 to 2017. The influence of silt and sand pit on the layout of DCM piles must be considered.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/e6924a72-2e38-46e4-a1e1-45ad603a31c6
ER  -