Simultaneous Observation Device and Method for Pile Top and Pile End Settlement Used in Pile Foundation Model Test
A technology of model test and observation device, which is applied in measurement device, surveying and navigation, height/level measurement, etc., can solve problems such as affecting the accuracy and effect of model test results, difficult to observe pile end settlement, difficult to control as a whole, etc. To achieve the effect of easy assembly operation, reliable guarantee, and reducing errors
Active Publication Date: 2020-04-21
SHANDONG UNIV
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Problems solved by technology
However, the pile tip is generally deep into the soil sample. The current conventional observation method is not easy to control as a whole and is likely to cause changes in boundary conditions, thereby affecting the accuracy and effect of the model test results. Therefore, it is difficult to observe the settlement of the pile tip, and even more difficult to observe the pile at the same time Top and pile tip settlement
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[0033] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0034] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0035] As introduced in the background technology, in the prior art, the pile tip is generally deep into the soi...
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The invention discloses a pile top and pile tip settlement simultaneous observation device and method for a pile foundation mold test. The pile top and pile tip settlement simultaneous observation device comprises a base, a simulating pile, a connecting rod and two displacement sensors, wherein the bottom part of the simulating pile is rigidly connected to one base; the top part of the simulatingpile is sleeved with a hollow loading plate; the simulating pile is connected with a sleeve; a solid loading plate is arranged at the top part of the sleeve; a hollow groove is formed in a side wall of the sleeve; one of the two displacement sensors is used for measuring the displacement of the hollow loading plate and the other displacement sensor is used for measuring the displacement of a movable plate; the movable plate is horizontally arranged; one end of the movable plate penetrates through the hollow groove in the sleeve to be suspended and the other end of the movable plate is locatedin the sleeve and is rigidly connected with the vertically-arranged connecting rod; the bottom part of the connecting rod is connected with the base; pile top settlement is equalized to vertical displacement of the loading plates through one sensor; pile tip settlement is equivalently converted to the base and the pile tip settlement is equal to the vertical displacement of the movable plate.
Description
technical field [0001] The invention relates to a model test observation device, in particular to a simultaneous observation device and method for pile top and pile tip settlement used in pile foundation model tests. Background technique [0002] Model test is a method to conduct scale-down research on specific engineering geological problems according to a certain similarity principle. It has become the most important method in the engineering field to obtain relevant data and check design defects by performing corresponding tests on scaled-down or proportional models. one of the research tools. Pile foundation is one of the main foundation forms widely used in my country at the present stage. Reasonable use of pile foundation can not only effectively control the settlement and deformation of buildings (structures), but also improve the seismic performance of buildings (structures), so as to ensure that buildings (structures) Long-term safe use of structures. [0003] Pile...
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IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 张乾青李晓密刘善伟张健崔伟冯若峰袁魁李莹炜
Owner SHANDONG UNIV