Performance of Excavations with Cross Walls
Performance of Excavations with Cross Walls
复制标题
DOI：
10.1061/(asce)gt.1943-5606.0000402
复制
发表时间：
2011-01-01
影响因子：
3.9
通讯作者：
Lin, Yi-Lang
中科院分区：
文献类型：
--
作者：
Ou, Chang-Yu;Hsieh, Pio-Go;Lin, Yi-Lang
本文根据现场观测和数值分析结果，分析了横墙开挖的力学性能。分析中采用了小应变本构模型。通过与未安装横墙的实际算例的运动对比，评价了横墙的有效性。结果表明，通过安装横墙，病历中的移动大大减少。安装横墙的墙体最大挠度和地面沉降量分别减少约75%和82%。与远离横隔壁或横隔壁角部的运动相比，靠近横隔壁角部的运动较小。地下连续墙在设置横墙的截面上仍有一定的挠度，挠度与线弹性分析的挠度接近。在开挖沟槽过程中，横墙和地下连续墙之间的泥浆得到了充分的清理，这是合理的。
This paper presents the performance of an excavation with cross walls based on field observations and numerical analysis results. A small strain constitutive model was used in the analysis. By comparing the movements of the real case with the same case but without cross walls installed, the effectiveness of cross walls was thus evaluated. Results indicate that the movements in the case history were substantially reduced by the installation of cross walls. The maximum wall deflection and ground settlement at a place where the cross wall was installed was reduced by about 75 and 82%, respectively. The movements near the diaphragm wall or cross wall corner were relatively small, compared with those far away from the corner. The diaphragm wall still had some deflection at the sections where cross walls were installed and the amount of deflection was close to that from linear elastic analysis. It is justified that slime between cross walls and diaphragm walls during trench excavation was fully cleaned.