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软土地基沉降病害与锚杆支挡结构设计优化研究

建筑与设计
针对软土分布城市的地基沉降病害严重，锚杆支挡结构作为常规技术手段，对其设计优化意义重大。软土具有含水率高、压缩模量低、抗剪强度低及蠕变强的工程特性，致使沉降问题突出。本文先深入分析软土沉降对锚杆支挡的影响机制，发现均匀沉降会导致锚固段脱空，使有效锚固长度缩短；差异沉降会引发挡墙面板开裂；蠕变沉降则造成筋材损伤，缩短其使用寿命。在此基础上，从锚固段、注浆系统、筋材选型三方面开展锚杆支挡结构设计优化。锚固段优化通过调整锚固段长度，增大锚孔直径提升锚固力；注浆系统优化依据软土风险等级选用不同注浆材料 ...
张蕾
semanticscholar   +1 more source

Ultralong-lived triplet excitons of room-temperature phosphorescent carbon dots located on g-C_3N_4 to boost photocatalysis

Science China Materials, 2022
Xiaoyu Fang, Yanqun Tang, Yu‐Juan Ma, Guowei Xiao, Pengyan Li, Dongpeng Yan   +5 more
semanticscholar   +1 more source

Evolution law and engineering application on main stress difference for a novel stress relief technology in two ribs on deep coal roadway

Journal of Central South University, 2023
Dongdong Chen, Zaisheng Jiang, Xiang Ma, S. Xie, En-Chao Wang, Hui Li   +5 more
semanticscholar   +1 more source

N-doped core–shell mesoporous carbon spheres embedded by Ni nanoparticles for CO_2 electroreduction

Rare Metals, 2023
Juan Du, Qin-Yan Lin, Jian-qi Zhang, Senlin Hou, Aishi Chen   +4 more
semanticscholar   +1 more source

Lithiophilic montmorillonite as a robust substrate toward high-stable lithium metal anodes

Rare Metals, 2023
M. Wang, Ying Li, Shengyang Li, Xingyong Jia, Bo Nie, Hong‐Tao Sun, Ya-Ya Wang, Jian Zhu   +7 more
semanticscholar   +1 more source

Effects of in-situ stress and delay time on rock damage under shaped charge jet blasting

Journal of Central South University, 2023
Ningkang Meng, J. Bai, C. Yoo, Yong Chen
semanticscholar   +1 more source

Optimization of AlN hydrolysis in aluminum dross based on response surface methodology and reaction kinetics

Journal of Central South University, 2023
Liang-min Dong, Fen Jiao, Wei Liu, Shi-yang Liu, Ya-lin Huang, Wenqing Qin   +5 more
semanticscholar   +1 more source

纳米SiO 2 质量分数对胶粘碳纤维增强树脂复合材料板-钢搭接界面黏结性能的影响

, 2020
李传习, 李游, 高有为, 胡正, 刘一鸣   +4 more
semanticscholar   +1 more source

Stabilizing charge storage of Fe_2O_3-based electrode via phosphate ion functionalization for long cycling life

Rare Metals, 2022
Liming Wan, Qiuying Xia, Jiangqiu Wu, J. Liu, Zhengyi Shi, Si Lan, Teng Zhai, S. Savilov, S. Aldoshin, Hui Xia   +9 more
semanticscholar   +1 more source