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Wang Q.,Shandong University of Science and Technology | Wang Q.,CAS Wuhan Institute of Rock and Soil Mechanics | Wang Q.,Shandong Hualian Mining Co. | Wen X.,CAS Wuhan Institute of Rock and Soil Mechanics | And 2 more authors.
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | Year: 2013

Glass-plastic composite geogrid, high strength, impact toughness, resistance to environmental stress, creep resistance is strong, and in normal use to maintain long-term stable performance. Through the glass-plastic composite geogrid materials, technological process, the introduction of performance indicators, and Through field tensile test at different temperatures grille longitudinal and transverse rupture strength and fracture elongation were analyzed, get the following conclusions: (1) grille strip with fiber material that can resist erosion and climate change, to ensure the stability of its performance; (2) grille breaking strength was positively correlated with temperature, elongation with temperature negative correlation, and after a certain time to stabilize; (3) Structure using a special process to improve the grille peel tear strength and soil interlocking engagement capability, glass-plastic composite geogrid development in our country is in its infancy, as reinforcement, reinforcement will in the civil engineering field has broad market prospects.


Wang Q.,Shandong University of Science and Technology | Wang Q.,Shandong University | Wang Q.,Shandong Hualian Mining Co. | Wen X.,Shandong University of Science and Technology | And 3 more authors.
Journal Wuhan University of Technology, Materials Science Edition | Year: 2014

By analyzing the grille mechanical property, tensile strength and creep tests, and the field tests, we investigated the characteristics and the reinforcement principle of multidirectional geogrid, and obtained the effect factors of grid characteristics, load and time curve and the shear stress of grille and sand interface. The reinforcement effect of geogrid in combination of typical project cases was illustrated and the following conclusions were presented. Firstly, multidirectional geogrid has ability to resist structural deformation, node distortion or soil slippage under stress, and can effectively disperse load. Secondly, with the increase of tensile rate, grille intensity increases and the creep value also increases with the increase of load. Thirdly, the frictional resistance balance between horizontal thrust of damaged zone and reinforced soil in stable region can avoid slope failure due to excessive lateral deformation. Fourthly, the multidirectional geogrid is able to withstand the vertical, horizontal and diagonal forces by combing them well with three-dimensional orientation, realizing the purpose of preventing soil erosion and slope reinforcement, which has a wide range of application and development in engineering field. © 2014 Wuhan University of Technology and Springer-Verlag Berlin Heidelberg.


Qingbiao W.,Shandong University of Science and Technology | Qingbiao W.,Shandong Hualian Mining Co. | Cong Z.,Shandong University of Science and Technology | Rongshan L.,Shandong University of Science and Technology | And 4 more authors.
Open Construction and Building Technology Journal | Year: 2015

In order to solve the problems of high springback of sprayed concrete and high dust concentration in the boltnetting support of underground engineering, research the mechanical properties of steel plastic geogrid and analyze the application of steel plastic geogrid replacing the metal net in the reduction of concrete through theoretical study, laboratory test, field test and contrast analysis, thus got the conclusion that: (1) Through the analysis of influence factors of the springback of surrounding rock supporting sprayed concrete, classification is carried on with the sampling survey method. The interaction between the metal net and concrete is the main factor to influence the springback of the concrete. (2) Study the performance differences of the steel plastic geogrid and the metal net. With the advantages of tensile strength, strong durability and injection connection, steel plastic geogrid has stronger applicability, safety and stability in adjusting the stress of the surrounding rock of the roadway and coordinating its deformation. (3)Through the tensile test and the deflection test, study the relationship between the tensile strength and external load under different aperture, thus establish the relation curve between the maximum deflection and load. (4) Through the roadway engineering construction and the analysis of the data of the field test, steel plastic geogrid can greatly reduce the springback of sprayed concrete which can guide the design and construction of underground bolt-netting support engineering. © Qingbiao et al.; Licensee Bentham Open.


Wang Q.-B.,Shandong University of Science and Technology | Wang Q.-B.,CAS Wuhan Institute of Rock and Soil Mechanics | Wang Q.-B.,Shandong Hualian Mining Co. | Zhang C.,Shandong University of Science and Technology | And 2 more authors.
Journal of Engineering Science and Technology Review | Year: 2013

Shanghai electromagnetic levitation train (maglev) is the first one that is constructed and operated commercially in the world. Many technological problems have to be tackled during its construction, and the most difficult problem in the civil engineering part is the making of prestressed track beam. It requires high precision because of its special function. The stretching control of the pre-tensioning force and the post-tensioning force in the making of prestressed track beam is most important during the construction. This paper introduces and analyses the technical features of vibrating wire sensors as well as the development, the research and the application of force sensor for pulling force measurement of anchor cable. © 2013 Kavala Institute of Technology.


Wang Q.-B.,Shandong University of Science and Technology | Wang Q.-B.,CAS Wuhan Institute of Rock and Soil Mechanics | Wang Q.-B.,Shandong Hualian Mining Co. | Shi Z.-Y.,Shandong University of Science and Technology | And 2 more authors.
Journal of Engineering Science and Technology Review | Year: 2013

Through the technological test of self-balanced testing method on big diameter rock-socketed piles of broadcasting centre building of Tai'an, this paper studies and analyzes the links of the balance position selection, the load cell production and installation, displacement sensor selection and installation, loading steps, stability conditions and determination of the bearing capacity in the process of self-balanced testing. And this paper summarizes key technology and engineering experience of self-balanced testing method of big diameter rock-socketed piles and, meanwhile, it also analyzes the difficult technical problems needed to be resolved urgently at present. Conclusion of the study has important significance to the popularization and application of self-balanced testing method and the similar projects. © 2013 Kavala Institute of Technology.

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