Results 21 to 30 of about 234,477 (336)

Numerical Simulation of Seepage and Deformation in Excavation of a Deep Foundation Pit under Water-Rich Fractured Intrusive Rock

Geofluids, 2021
Water is one of the major risk sources in the excavation of deep-large foundation pits in a water-rich area. The presence of intrusive broken diorite porphyrite in the stratum aggravates the risk level of deep foundation pits.
Changfeng Yuan, Zhenhui Hu, Zhen Zhu, Zijin Yuan, Yanxiang Fan, Huifeng Guan, Liang Li   +6 more
semanticscholar   +1 more source

Excavations

Observatory Journal, 2018
"Escavações" é uma experimentação artística realizada pelo Coletivo Fabulografias, ligado ao Laboratório de Estudos Audiovisuais - OLHO da Faculdade de Educação - Universidade Estadual de Campinas - Unicamp (SP), exposta em 2015 no Museu da Imagem e Som de Campinas - SP na Mostra "Aparições" organizada pelo Laboratório de Estudos Avançados em ...
Wunder, Alik, Romaguera, Alda Regina Tognini, Wunder, Marli   +2 more
  +5 more sources

Time-Frequency Analysis and Application of a Vibration Signal of Tunnel Excavation Blasting Based on CEEMD-MPE-HT

Shock and Vibration, 2021
The traditional empirical mode decomposition method cannot accurately extract the time-frequency characteristic parameters contained in the noisy seismic monitoring signals.
Chen-yang Ma, Li Wu, Miao Sun, Qing Yuan
doaj   +1 more source

Damage Characteristics of Surrounding Rock Subjected to VCR Mining Blasting Shock

Shock and Vibration, 2015
For limiting the damage range caused by explosive shock loads in vertical crater retreat (VCR) mining, the blasting damage characteristics of surrounding rock were studied by two methods: numerical simulation and ultrasonic testing.
Nan Jiang, Chuanbo Zhou, Xuedong Luo, Shiwei Lu   +3 more
doaj   +1 more source

Study on the influence of expansive soil slope on bridge foundation under excavation and rainfall conditions

Engineering Reports, 2023
Expansive soil is a kind of special soil that mainly composes of hydrophilic minerals and has significant deformation characteristics of water absorption expansion and water loss shrinkage.
Li‐gong Yang, Wen‐dong Ji, Yu‐ting Zhang   +2 more
doaj   +1 more source

Breeding of the new peach variety Jiushuang [PDF]

Guoshu xuebao
Mancheng and Shunping counties, located in the central region of Hebei Province, are major peach-producing areas within the province. These regions encompass a substantial cultivation area of approximately 13 000 hectare. The main cultivated varieties in
WANG Licheng, XIAO Xiao, WU Junkai, LIU Junming, LI Qingquan, LIU Jianzhen, SONG Liqin, ZHANG Libin   +7 more
doaj   +1 more source

Predicting Response of Constructed Tunnel to Adjacent Excavation with Dewatering

, 2021
This paper proposes a new method for predicting the displacement and internal force of constructed tunnels induced by adjacent excavation with dewatering. In this method, the total excavation-induced additional stress on the constructed tunnel is derived
Panpan Guo, Feifei Liu, Gang Lei, Xi’an Li, Cheng-wei Zhu, Yixian Wang, M. Lu, K. Cheng, X. Gong   +8 more
semanticscholar   +1 more source

Transverse Force Analysis of Adjacent Shield Tunnel Caused by Foundation Pit Excavation Considering Deformation of Retaining Structures

Symmetry, 2021
In order to research the theory for the variety of transverse forces of the adjacent shield tunnels caused by foundation pits excavation, the effect mechanism of foundation pit excavation on the adjacent shield tunnel was analyzed. The sidewall unloading
Xinhai Zhang, G. Wei, Xinbei Lin, Chang Xia, X. Wei   +4 more
semanticscholar   +1 more source

Characteristics determination for milling working equipment of excavator

Вестник СибАДИ, 2023
Introduction. The long network of pipelines on the territory of our country needs timely and high-quality repairs. The entrenching tool used so far increases the complexity of work on the overhaul of pipelines, which forces to create solutions for ...
I. S. Kuznetsov, S. V. Saveliev
doaj   +1 more source

Transcriptome Analysis Reveals That PpSLFL3 Is Associated with Cross-Incompatibility in the Peach Landrace ‘Liuyefeitao’

Horticulturae
The peach landrace ‘Liuyefeitao’ exhibits the unique reproductive trait of self-compatibility combined with cross-incompatibility, contrasting with typical Prunus species in this way.
Haijing Wang, Chunsheng Liu, Yating Liu, Yudie Zhang, Meilan Wu, Haiping Li, Man Zhang, Kun Xiao, Kai Su, Chenguang Zhang, Gang Li, Xiaoying Li, Libin Zhang, Junkai Wu   +13 more
doaj   +1 more source