The construction safety control analysis of super-deep and super-large foundation pit

Author(s):  
Huitao Liu ◽  
Xianguo Wu ◽  
Limao Zhang
2013 ◽  
Vol 139 (10) ◽  
pp. 04013010 ◽  
Author(s):  
Matthew R. Hallowell ◽  
Jimmie W. Hinze ◽  
Kevin C. Baud ◽  
Andrew Wehle

2013 ◽  
Vol 361-363 ◽  
pp. 1124-1128
Author(s):  
Xiao Yong Liu ◽  
Xin Wang ◽  
Er Qiang Zhang

The new-type structure of "three towers of two-span" suspension bridge with the main span of 2×1080m is put to use in Taizhou Bridge. The foundation of Middle Tower adopts an extra-large underwater caisson structure with the three dimension size about 58m×44m×76m, which has been so far the deepest underwater caisson in the world. The caisson is divided into two sections, that is, Steel Caisson on the bottom and Concrete Caisson on the top. The underwater positioning, landing of Steel Caisson and the height addition construction of Concrete Caisson are of great construction difficulties and thus brought high safety risk. In this paper, Taking Taizhou Bridge as background, the safety control technology and management of underwater caisson construction is presented, which can play a good reference for similar projects.


2021 ◽  
Vol 352 ◽  
pp. 00002
Author(s):  
Stefan Jangl ◽  
Vladimir Kavicky ◽  
Michal Pilat

The paper presents the design of bridge blasting demolition scheme. The blasting methods has become the preferred method for bridge demolition not only in war period but also where bridge service life is exceeded. Compared with the other demolition method, blasting evince more advantages as higher demolishing progress, lower cost and easier construction safety control. The design of bridge blasting demolition scheme contents blasting position, blasting parameters and safety protections.


2021 ◽  
Vol 2037 (1) ◽  
pp. 012131
Author(s):  
Zhimei Wang ◽  
Jinlan Tan ◽  
Xu Wang ◽  
Dongping Hu

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Diandian Ding

The reasonable selection and optimized design of the deep foundation pit support scheme is directly related to the safety, construction period, and cost of the entire project. Here, based on a large number of theoretical results in many related fields, relevant influencing factors are systematically analyzed, and advanced mathematical algorithms such as neural networks are introduced according to the relevant characteristics of building deep foundation pit support construction. First of all, this paper designs and implements deep foundation pit construction safety risk technology based on wireless communication and BIM technology and analyzes and describes the framework and function of the foundation pit construction safety risk identification system. Secondly, we use neural network algorithms to study the deformation prediction of the foundation pit supporting structure, which can describe the expression method of the above safety knowledge. Finally, the differences and benefits of this method and traditional methods are compared through experiments, which show that this technology can pave the way for the construction of deep foundation pit construction safety risk knowledge.


2013 ◽  
Vol 423-426 ◽  
pp. 2149-2153 ◽  
Author(s):  
Yan Ling Zhu

Construction safety accident has occurred frequently and accident death toll has been high. Investigate its reason, mainly in the low level of construction enterprise safety accidents emergency management. Strengthen construction safety emergency management can effectively reduce the life and property losses, and to ensure the sustainable development of construction enterprises. We put forward a construction safety emergency decision support system based on ontology and CBR method. Then we described its work processes and use the foundation pit engineering as an example to explain the knowledge representation and the ontology similarity case retrieve matching method. Finally, we give the method to realize the system so as to reach the purpose that improved the building enterprise emergency management capacity effectively.


2013 ◽  
Vol 671-674 ◽  
pp. 113-116
Author(s):  
Chun Yuan Liu ◽  
Wei Wei Cao ◽  
Yu Liu

Based on the impact of deep foundation pit excavation to the adjacent history style construction, FLAC3D was adopted to establish the excavation and supporting calculation model of a pit in Tianjin. The excavation deformation was analyzed, and the contact slip effect of the supporting structure and soil was considered. The results of study are as follows. (1) The pit has been dig to the third layer, and the values calculated are consistent with the monitored ones by comparing simulation values and measured results on B1 section. (2) Digging to the bottom of the pit, we can predict the biggest horizontal displacement of soil is 34.6 mm, and the value is 11.2mm in the history style construction. Therefore, the results of the study can play a guiding role in the engineering construction safety.


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