Results 81 to 90 of about 3,210,677 (306)

Experimental study on the disintegration behavior and mechanism of red-bed mudstone in guangxi, China

Frontiers in Materials
Red-bed mudstone (RBM) has the characteristics of being easily softened and disintegrated under dry and wet cycles. To investigate the weakening and disintegration characteristics of the RBM, typical mudstone from Guangxi highway slope was taken as the ...
Tingyi Luo, Qingsong Zhang, Chong Gui, Yasen Tang, Shijie Zhou, Yuting Wang   +5 more
doaj   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Other title: Alabama highway map; Other title: Federal raids in Alabama 1861-1865; Other title: Alabama highways, Civil War centennial, 1861-1961; Other title: Alabama Civil War centennial official highway map, 1961

, 1961
Variant title: Alabama highways, Civil War centennial, 1861-1961.; Panel title: Alabama Civil War centennial official highway map, 1961.; Includes 7 inset maps, text, and color ...
Alabama. State Highway Department.
core   +1 more source

Safer Construction and Maintenance Safer Construction and Maintenance Practices to Minimize Potential Liability by Counties from Accidents, September 1979 [PDF]

, 1979
Tort claims resulting from alleged highway defects have introduced an additional element in the planning, design, construction, and maintenance of highways.

core  

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

Deep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu, Xiang Ci, Weizhong Chen, Jianping Yang   +3 more
wiley   +1 more source

Analysis of Spatio-Temporal Evolution and Driving Factors of Eco-Environmental Quality during Highway Construction Based on RSEI

Land
One essential part of transportation infrastructure is highways. The surrounding eco-environment is greatly impacted by the construction of highways. However, few studies have investigated changes in eco-environmental quality during highway construction,
Yanping Hu, Xu Yang, Xin Gao, Jingxiao Zhang, Lanxin Kang   +4 more
doaj   +1 more source

Developing a universal tunnel span classification from global tunnel databases

Deep Underground Science and Engineering, EarlyView.
A universal tunnel span classification system is introduced that incorporates tunnel span, cross‐sectional area, typical tunnel types, and intended uses. Representative flatness ratio values are also provided for each span class. The classification is derived from a comprehensive database of 450 tunnel profiles from 47 countries.
Simon Heru Prassetyo, Inzagi Suhendar, Semmy Andrew Anugerah Djawa Tagi, Bonifacio Bondan Satryojati, Dzakwan Naufal Pratama, Yeremia Sintong Damero, Yudhidya Wicaksana, Erwin Lim, Ridho Kresna Wattimena   +8 more
wiley   +1 more source

Research on the ventilation and control method of double-hole complementary construction of long tunnel

Scientific Reports
The realization of two-bore complementary ventilation in construction tunnels is a new challenge. This paper takes two-way four-lane, six-lane and eight-lane tunnel as the research object, and studies the possibility of two-bore complementary ...
Wang Xiaoming, Zhao Yu, Yang Guang, Zhao Xinyu, Liu Dong, Wei Hongliang, Chen Shiqiang, Deng Huan   +7 more
doaj   +1 more source

The Processes of Intelligent Firefighting in Seawater Tunnel: a Case Study of Karnaphuli Tunnel in Bangladesh [PDF]

Safety & Fire Technology
Aim: In the case under consideration, research was conducted to optimize the design process of fire protection for an underwater sea tunnel to reduce potential fire risks and enhance the resistance of fire protection pipelines to corrosion caused by ...
Yan Yi, Tao Yang, Songsong Xiao, Xing Liu, Min Deng, Zewen Sun, Zhengyang Fan, Hao Huang   +7 more
doaj   +1 more source

Analysis of factors of willingness to adopt intelligent construction technology in highway construction enterprises. [PDF]

Sci Rep, 2023
Zhou ZC, Su YK, Zheng ZZ, Wang YL.
europepmc   +1 more source