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Model test method for testing influence of sediments located in front of gate on lifting force of gate

A technology of door opening force and silt, which is applied in the model test field of the influence of silt in front of the gate on the gate opening force, can solve problems such as considerable blindness, and achieve the effect of eliminating dissimilar frictional resistance

Inactive Publication Date: 2011-10-26
TIANJIN UNIV
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Problems solved by technology

In the case of sedimentation in front of the gate, how to determine the opening force, the current engineering design often uses the planar gate and arc gate given in the current code of my country "Code for Design of Steel Gates in Water Conservancy and Hydropower Engineering" (SL74-95). The empirical formula of the door opening force of the gate in clear water calculates the door opening force in clear water, then takes into account the sedimentation in front of the gate, and then multiplies a coefficient greater than 1 as the opening force when there is sedimentation, but the coefficient Determination is often determined empirically, with considerable blindness

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  • Model test method for testing influence of sediments located in front of gate on lifting force of gate
  • Model test method for testing influence of sediments located in front of gate on lifting force of gate
  • Model test method for testing influence of sediments located in front of gate on lifting force of gate

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] In order to determine the gate opening force in the case of silt deposits in front of the gate through the gate opening force model test, the embodiment of the present invention provides a model test method for the influence of the mud in front of the gate on the gate opening force, see figure 1 , figure 2 and image 3 , see the description below:

[0032] 101: According to the first formula and the second formula of the silt similarity criterion in front of the sluice, prepare the silt in front of the model sluice, fill the similar silt in front of the sluice into the model mud pool 9 according to the design elevation, add water to the design water level in front of the dam, open the gate 5, measure Get the model gate openin...

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Abstract

The invention, which relates to a model test of a lifting force of a gate, discloses a model test method for testing influence of sediments located in front of a gate on a lifting force of the gate. The invention provides a similarity criterion of the sediments located in front of the gate and a method which is used to guarantee the similarity of the sediments located in front of the gate in the lifting force model test so as to guarantee the similarity between tested model lifting force and the real lifting force. The invention also provides the method which is used to correct the sediment similarity when the sediments located front the gate do not satisfy the similarity criterion. In addition, the test method of eliminating dissimilarity of the gate walking friction resistance is also provided.

Description

technical field [0001] The invention relates to a model test of gate opening force, in particular to a model test method for the influence of mud in front of the gate on the gate opening force. Background technique [0002] The sediment in the reservoir deposits in front of the gate, which will increase the opening force of the gate. In the case of sedimentation in front of the gate, how to determine the opening force, the current engineering design often uses the planar gate and arc gate given in the current code of my country "Code for Design of Steel Gates in Water Conservancy and Hydropower Engineering" (SL74-95). The empirical formula of the door opening force of the gate in clear water calculates the door opening force in clear water, then takes into account the sedimentation in front of the gate, and then multiplies a coefficient greater than 1 as the opening force when there is sedimentation, but the coefficient Determination is often determined by experience, with co...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/22
Inventor 徐国宾任晓枫刘昉
Owner TIANJIN UNIV
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