scholarly journals Study on the reinforcement effect of bolt in the artificial dam of underground reservoir in Wulanmulun mine

2021 ◽  
Vol 768 (1) ◽  
pp. 012015
Author(s):  
Ren-liang Shan ◽  
Shuai Liu ◽  
Xiang-song Kong ◽  
Chen Liang
2019 ◽  
Vol 37 (4) ◽  
pp. 3329-3342
Author(s):  
Zeng-qiang Yang ◽  
Chang Liu ◽  
Yun Dong ◽  
Lin-ming Dou ◽  
Jing-ke Wu

2021 ◽  
Vol 11 (6) ◽  
pp. 2553
Author(s):  
Sang-Hyun Kim ◽  
Jong-Sup Park ◽  
Woo-Tai Jung ◽  
Jae-Yoon Kang

Various methods for strengthening existing structures have been developed owing to the increase in human and property damages caused by the deterioration of structures. Among the various reinforcing methods, the external prestressing method increases the usability and safety of a structure by directly applying tension to the weak tensile area that suffers the greatest deflection during the structure usage. The external prestressing method is advantageous in reducing cracks caused by the introduced tension and restoration of the deflection. Since the strengthening method is applied to deterioration bridges, the strengthening effect is affected by the condition of the existing structure. However, studies on the strengthening effect according to the degree of deterioration are insufficient. Therefore, the behavior according to the strengthening status was analyzed, and the strengthening effect was identified in this study by simulating the deteriorated bridge, reducing the compressive strength and reinforcement quantity, and conducting a four-point loading test. As a result of the experiment, a reinforcement effect of 215% crack load, 161% yield load, and the difference in behavior according to the reinforcement parameters were confirmed.


1971 ◽  
Vol 28 (1) ◽  
pp. 81-82
Author(s):  
A. M. Padilla

Frustration theory (Amsel, 1958) is unable to explain partial reinforcement effects following limited acquisition training. It is suggested that attempts to explain these findings may have implications for conditioning theories in general, and that more attention should be given to the early acquisition process.


2019 ◽  
Vol 47 (5) ◽  
pp. 610-617 ◽  
Author(s):  
Yan-Qiao Wang ◽  
Kang Liu ◽  
Xian Li ◽  
Qiu-Bing Ren ◽  
Lan-Lan Li ◽  
...  

1978 ◽  
Vol 42 (1) ◽  
pp. 91-97 ◽  
Author(s):  
Richard A. Dubanoski ◽  
Howard R. Weiner

To test the discrimination hypothesis of the partial reinforcement effect in extinction, partial or continuous reinforcement trials were interpolated between the initial training trials of partial or continuous reinforcement and the extinction period. 112 children from Grades 2 and 3 participated in one of four conditions. Children receiving two consecutive blocks of partial reinforcement showed the greatest resistance to extinction, children receiving two consecutive blocks of continuous reinforcement showed the weakest resistance, and those receiving partial reinforcement followed by continuous reinforcement or vice versa showed intermediate levels of resistance. Discrimination between training and extinction does not seem to be the critical factor involved in the partial reinforcement effect. The results were discussed in terms of a stimulus analyzer or a sequential analysis model.


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