Comprehensive detection method of pile foundation based on initial stiffness method
A technology of initial stiffness and comprehensive detection, which is applied in the test of foundation structure, foundation structure engineering, and the use of primary impact force to test the strength of materials, etc. It can solve problems such as the difference between auxiliary tests and equipment usage methods, the scope and the difference in applicable rock and soil environments. , to achieve low strain detection cost, reduce technical difficulty, and ensure the effect of detection accuracy
Active Publication Date: 2021-07-13
SOUTHEAST UNIV
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Pile foundation detection technology of speed loading method includes unloading point method, segmented unloading point method, initial stiffness method, modified initial stiffness method, simultaneous method, structural damping method, etc. method of pile foundation testing equipment, but there is a big difference between the auxiliary test and the method of using the equipment, and the scope of use and the applicable rock and soil environment are also different.
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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. The relative arrangements, expressions and numerical values of components and steps set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, th...
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The invention discloses a pile foundation comprehensive detection method based on the initial stiffness method. Firstly, some representative pile foundations are selected from pile foundations in the pile foundation site to construct a pile foundation standard library; and then the pile foundation standard library is After the static load method test and the initial stiffness method test are carried out successively for each pile foundation in the test, the difference in bearing capacity obtained by the two test methods for each pile foundation is compared to obtain the bearing capacity of the pile foundation when the initial stiffness method is tested. The force deviates from the correction variable of the actual bearing capacity of the pile foundation. Finally, the quick loading method is used to test each pile foundation in the pile foundation site, and the bearing capacity obtained from the test is corrected with the correction variable to improve the detection of pile foundation bearing capacity. precision. The invention greatly reduces the technical difficulty of batch detection of pile foundations, and the detection is simpler, economical and practical. At the same time, under the premise of improving the detection efficiency of pile foundation, the detection accuracy of pile foundation bearing capacity dynamic measurement is improved.
Description
technical field [0001] The invention relates to a pile foundation comprehensive detection method, which uses a pile foundation detection device to carry out pile foundation detection, so as to comprehensively analyze the integrity and bearing capacity of the pile foundation, in order to more accurately perform comprehensive performance of the pile foundation evaluate. Background technique [0002] Pile foundation is one of the most important foundation forms in engineering, and its working performance is not only related to the overall safety performance of the engineering structure, but also affects the actual operating life of the engineering structure. At present, static and dynamic detection methods are commonly used for pile foundation detection. The domestic popular detection methods for the integrity of pile foundations mainly include damage detection and non-destructive detection, among which damage detection such as coring method, non-destructive detection For exam...
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Login to View More IPC IPC(8): G01N3/30E02D33/00
CPCE02D33/00
Inventor 龚维明郭庆戴国亮赵学亮竺明星万志辉
Owner SOUTHEAST UNIV