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Monitor and control of ultra deep shaft safety and efficient construction
Shen Weian,Liang Hengchang,Zhao Guangsi
Strategic Study of CAE 2012, Volume 14, Issue 2, Pages 45-48
With the increase of the depth of shaft construction, shaft wall safety and the construction are becoming difficult. To ensure the safety and shaft wall construction safety and other factors, the real-time control and monitoring of the construction process is necessary. Feedback monitoring is an important method to ensure the construction safety. Base on the background of Benxi Dataigou Iron Mine's ultra-deep shaft with diameter of 6.5 m, depth of 1 640 m, the paper proposed methods to monitor the shaft wall safety and the condition of construction. It introduced the information construction for video monitor system, hanging plate important point monitor system and promoting bucket monitor system. The monitor system implementation plan may provide detailed information for ultradeep shaft efficient construction.
Keywords： ultra deep shaft safety information construction monitor and control
Deformation monitoring on Three Gorges Project ship lift tower during construction period
Qiu Zhangyun,Luo Chen
Strategic Study of CAE 2013, Volume 15, Issue 9, Pages 102-107
This paper begins with internal and external factors as well as field operating conditions during the monitoring process. According to the accuracy analysis which is done to several typical monitoring methods and the study which is done to the 360° reflecting prism test, the final choice is that total station polar coordinate would be used as the deformation monitoring method of Three Gorges Project ship lift tower during construction period, and deformation analysis is received using the long-term monitoring data obtained by the use of the method. The results show that tower deformation is greatly affected by temperature; the greater the temperature difference, the greater the deformation. It would be small deformation or even no deformation when temperature difference is small or under constant temperature.
Keywords： Three Gorges Project ship lift tower column deformation monitoring total station polar coordinate
Yu Jun,Liu Songyu and Gong Xiaonan
Strategic Study of CAE 2013, Volume 15, Issue 10, Pages 97-102
The stability of surrounding rock is closely connected with the settlement of the crown during construction of shallow-buried road tunnel in gravel strata. Therefore, simulation analysis of different construction methods was used to get the settlement law of the crown to optimize the project as a goal controlling settlement of the crown and stability of surrounding rock. At the same time, the better method of construction was put forward to analyze different excavation path and stage length. The result showed that the crown settlement easily took place during excavation of shallow tunnel and with different construction methods, the difference of crown settlement was great. It is found that CRD method is the most appropriate for gravel strata tunnel because the crown settlement is lest and the stress releasing is slow and gradual and the stress transfer is more effective than CD method. Compared with site monitoring, the result is more identical. The conclusion can provide the reference for similar engineering.
Keywords： gravel surrounding rock of tunnel numerical analysis construction optimization crown settlement site monitoring
The security monitoring and controlled drainage of Xiamen Subsea Tunnel
Du Chaowei,Wang Mengshu,Tan Zhongsheng
Strategic Study of CAE 2011, Volume 13, Issue 3, Pages 86-91
Controlled drainage should be applied to deal with underground water in subsea tunnel. In order to study the change laws of subsea tunnel wall rock pressure, water pressure on primary support and internal force of steel arching in the process of construction, combining with the Xiamen Subsea Tunnel, the real time monitor of the wall rock pressure, water pressure on primary support and internal force of steel arching were carried out on site in the process of construction. The results show that the primary support has a high security coefficient in construction period. Grouting in advance and grouting back the primary support is necessary for subsea tunnel. In the circumstance of controlled drainage, by strengthening some measures such as grouting, the water pressure on primary support can be reduced to 1/3 of the full hydrostatic pore pressure. By monitoring and analyzing the water inflow on site, the water inflow controlling criteria are put forward. The water inflow in soft rock section in Xiamen Subsea Tunnel should be less than 0.25 m3/(m·d). The result of the paper were verified and applied in Xiamen Subsea Tunnel.
Keywords： Xiamen Subsea Tunnel controlled drainage construction monitoring water pressure water inflow
Stress observation of shaft lining wall during construction and initial operation
Wen Dehua
Strategic Study of CAE 2012, Volume 14, Issue 2, Pages 80-84
For searching the stress and deformation law of blended shaft-lining during construction and initial operation, sensors were buried in interior and exterior wall of shaft-lining, and automated monitoring system was created. The stress and deformation law was obtained by analyzing the test results. With the law, we can forecast the long-term safety of shaft lining and provide scientific decision evidence for preventive and treating measures of broken wall.
Keywords： shaft lining monitoring thick topsoil strain additional force
Construction geology technology of Karst tunnels on Yichang-Wanzhou Railway
Shen Zhijun
Strategic Study of CAE 2009, Volume 11, Issue 12, Pages 47-52
Taking the construction geology technology practice of karst tunnels on Yichang-Wuanzhou Railway as an example, construction geology, which is a continuation of engineering geological exploration in construction stage, can be used to solve the problems which do not exist or cannot be solved in exploration stage. Taking advanced geology predication as its subject, aiming at avoiding large-scale construction geological harzards, construction geology refers to the comprehensive engineering geology work for ensuring construction progress, construction safety, engineering benefit and project quality, such as predicting possible displacement of tunnel surrounding rock; forecasting potential salt cavities, faults and underground rivers; finding out potential hydrogeology problems and concealed geological disasters after project completion, etc. Construction geology includes comprehensive advanced geology predication, hydrogeological observation and concealed karst exploration.
Keywords： Yichang-Wanzhou Railway comprehensive advanced geology predication hydrological monitoring
Field measurement and analysis of asymmetric shallow buried twin tunnels with ultra small spacing
Wang Yunlong,Tan Zhongsheng,Chen Ying
Strategic Study of CAE 2012, Volume 14, Issue 11, Pages 24-28
The ultra-small spacing tunnel of Jiaozhou Bay seabed tunnel in Qingdao is took for example; the surrounding rock pressure features and support force are analyzed through the field measurement. Results show that the surrounding rock pressure and support force of the after-excavation tunnel are larger than others of the tunnel. This result is different from the theoretical predictions and experimental results of most of the small spacing symmetry tunnel. To alleviate these problems effectively, support parameters are adjusted opportunely; the radial support capacity of the after-excavation tunnel is enhanced, and reinforcement measures of rock pillar are made at the same time. The monitoring results show that the stability of the after-construction tunnel has been effectively controlled, which provides useful reference for the design and construction of similar tunnels with small spacing.
Keywords： tunnel ultra-small spacing asymmetric shallow-buried field measurement
Stress distribution in third subsidence belt
Yan Zhitao,Liu Jianzhong,Qiu Jinping,Jin Lihua
Strategic Study of CAE 2009, Volume 11, Issue 2, Pages 33-35
Stress distribution in the third subsidence belt is presented , with great amounts of data on hydraulic fracture orientation obtained from monitoring hydraulic fracturing , and the direction of the maximum principle stress is specified . The results indicate that the third subsidence belt extends over 1 500 km from north to south , and the direction of the maximum principle stress ranges from 55° NE to 75° NE , concentrated on 65° NE , showing a stable distribution of the direction of maximum stress . The monitoring data implies that the tectonic stress direction in third subsidence belt is the combined result of South Asia Plate and Philippine Plate .
Keywords： hydraulic fracturing monitoring with micro- seismics third subsidence belt direction of maximumprinciple stress hydraulic fracturing treatment
Analysis of mechanical behaviors of big pipe-roof for shallow buried large-span tunnel
Li Jian,Tan Zhongsheng,Yu Yu,Ni Lusu
Strategic Study of CAE 2011, Volume 13, Issue 9, Pages 92-96
A series of research on mechanical behaviors of big pipe-roof in shallow large-span loess tunnel was made on Wenxiang Tunnel in Zhengzhou-Xi'an Special Passenger Railway. The longitudinal deformations of the pipe-roofs are monitored and the mechanical behaviors of the pipe-roofs are researched at the test section. The force-deformation law of big pipe roof in loess tunnel was obtained: in front of the excavating face about 15 m, the pipe roof started to bear the load; after the excavating face about 15 m,the load became stable; the longitudinal deformation of the whole pipe-roofs was groove-shaped distribution; the largest force of pipe-roofs was at the excavating face. The conclusions can provide reference for the design parameter optimization and the construction scheme selection of pipe-roofs and had been verified in the result of numerical analysis software FLAC3D and deformation monitoring.
Keywords： shallow burying mining undercrossing construction loess tunnel pipe-roof deformation monitoring mechanical behavior
Advances in Intellectualization of Transportation Infrastructures Review
Yanliang Du, Tinghua Yi, Xiaojun Li, Xiaoli Rong, Longjun Dong, Dawei Wang, Yang Gao, Zhen Leng
Engineering 2023, Volume 24, Issue 5, Pages 240-253 doi: 10.1016/j.eng.2023.01.011
Inspired by state-of-the-art material science, computer techniques, artificial intelligence, and automatic control, new-generation transportation infrastructures are becoming digitalized and intelligent. Many major developed countries around the globe are actively promoting the application of innovative intelligence-based technologies in transportation infrastructures in accordance with local conditions. This review begins with a brief discussion on the basic definition, scientific foundation, and development process for the intellectualization of transportation infrastructures. Then, following the whole life-cycle chain of design, construction, operational maintenance, and elimination, the current research status and major challenges presented by intellectualization technologies are systematically investigated. Subsequently, recent achievements in intellectual technologies are comprehensively presented by selecting the Beijing–Zhangjiakou High-Speed Railway—the world's first railway built based on the concept of intelligent construction—as an example. Finally, a discussion on the future development of the intellectualization of transportation infrastructures is provided from the three dimensions of standard systems, theoretical methods, and talent training.
Keywords： Intellectualization Transportation infrastructures Optimal design Automatic construction Structural health monitoring Structural elimination
Microseismic monitoring technology development direction and application
Liu Jianzhong,Tang Chunhua,Zuo Jianjun
Strategic Study of CAE 2013, Volume 15, Issue 10, Pages 54-58
This paper discussed the development direction of microseismic monitoring technology, pointed out that improve the quality of microseismic monitoring system, reduce the front end noise of the instrument, record more and smaller microseismic, tamp the theoretical foundation of microseismic monitoring, and increase the number of microseismic monitoring stations so as to obtain more information that can be compared are important directions for the development of microseismic technology. The introduction of conventional seismic exploration theory can also increase the level of microseismic monitoring, and form complete theory of microseismic. Above are important directions of microseismic monitoring technology development. With the development of technology, microseismic monitoring technology can also be used in seismic exploration and safety prediction of mine, reservoir besides oilfield fracturing and water monitoring.
Keywords： microseismic monitoring seismic prospecting fracturing monitoring water monitoring
A survey on indoor 3D modeling and applications via RGB-D devices Review Article
Zhilu Yuan, You Li, Shengjun Tang, Ming Li, Renzhong Guo, Weixi Wang,shengjuntang@szu.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 6, Pages 815-826 doi: 10.1631/FITEE.2000097
Keywords： 三维室内制图；RGB-D；室内定位；施工监测；应急疏散
Design and construction technology of underwater tunnel
Wang Mengshu
Strategic Study of CAE 2009, Volume 11, Issue 7, Pages 4-10
It is briefly introduced that when passing over or crossing rivers, lakes and seas, underwater tunnel construction method is preferred to be adopted for its summed advantages. The survey of design and construction, key construction technology and frequently-used construction method of underwater tunnel are also discussed in this article.
Keywords： underwater tunnel design construction
Technical Analysis and Construction of National Lightning Detecting Network
Xu Xiaofeng
Strategic Study of CAE 2002, Volume 4, Issue 5, Pages 7-13
Lightning is a natural phenomenon that seriously affects the natural environment and human activities. Therefore, it is of important social, economical and scientific value to detect the lightning effectively. Comparing with the developed countries, China has some gaps in the fields of lightning studying, forecasting and detecting. In this article, the mechanism of lightning and its influence are described. The present situation and the direction of lightning detecting technology at home and abroad are also analyzed. Several suggestions and issues have been proposed for constructing the national lightning detecting network.
Keywords： lightning detecting technical analysis system construction
Research and Implementations of Structural Monitoring for Bridges and Buildings in Japan—A Review Review
Yozo Fujino, Dionysius M. Siringoringo, Yoshiki Ikeda, Tomonori Nagayama, Tsukasa Mizutani
Engineering 2019, Volume 5, Issue 6, Pages 1093-1119 doi: 10.1016/j.eng.2019.09.006
This paper provides a review on the development of structural monitoring in Japan, with an emphasis on the type, strategy, and utilization of monitoring systems. The review focuses on bridge and building structures using vibration-based techniques. Structural monitoring systems in Japan historically started with the objective of evaluating structural responses against extreme events. In the development of structural monitoring, monitoring systems and collected data were used to verify design assumptions, update specifications, and facilitate the efficacy of vibration control systems. Strategies and case studies on monitoring for the design verification of long-span bridges and tall buildings, the performance of seismic isolation systems in building and bridges, the verification of structural retrofit, the verification of structural control systems (passive, semiactive, and active), structural assessment, and damage detection are described. More recently, the application
of monitoring systems has been extended to facilitate efficient operation and effective maintenance through the rationalization of risk and asset management using monitoring data. This paper also summarizes the lessons learned and feedback obtained from case studies on the structural monitoring of bridges and buildings in Japan.
Keywords： Structural monitoring Long-span bridge High-rise building Seismic monitoring Wind-induced responses Pavement and slab monitoring Structural control monitoring Structural assessment
Title Author Date Type Operation
Monitor and control of ultra deep shaft safety and efficient construction
Shen Weian,Liang Hengchang,Zhao Guangsi
Journal Article
Deformation monitoring on Three Gorges Project ship lift tower during construction period
Qiu Zhangyun,Luo Chen
Journal Article
Construction optimization of shallow-buried tunnel in gravel strata based on controlling settlement of the crown
Yu Jun,Liu Songyu and Gong Xiaonan
Journal Article
The security monitoring and controlled drainage of Xiamen Subsea Tunnel
Du Chaowei,Wang Mengshu,Tan Zhongsheng
Journal Article
Stress observation of shaft lining wall during construction and initial operation
Wen Dehua
Journal Article
Construction geology technology of Karst tunnels on Yichang-Wanzhou Railway
Shen Zhijun
Journal Article
Field measurement and analysis of asymmetric shallow buried twin tunnels with ultra small spacing
Wang Yunlong,Tan Zhongsheng,Chen Ying
Journal Article
Stress distribution in third subsidence belt
Yan Zhitao,Liu Jianzhong,Qiu Jinping,Jin Lihua
Journal Article
Analysis of mechanical behaviors of big pipe-roof for shallow buried large-span tunnel
Li Jian,Tan Zhongsheng,Yu Yu,Ni Lusu
Journal Article
Advances in Intellectualization of Transportation Infrastructures
Yanliang Du, Tinghua Yi, Xiaojun Li, Xiaoli Rong, Longjun Dong, Dawei Wang, Yang Gao, Zhen Leng
Journal Article
Microseismic monitoring technology development direction and application
Liu Jianzhong,Tang Chunhua,Zuo Jianjun
Journal Article
A survey on indoor 3D modeling and applications via RGB-D devices
Zhilu Yuan, You Li, Shengjun Tang, Ming Li, Renzhong Guo, Weixi Wang,shengjuntang@szu.edu.cn
Journal Article
Technical Analysis and Construction of National Lightning Detecting Network
Xu Xiaofeng
Journal Article
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