Comprehensive detection method of pile foundation based on unloading point method
A comprehensive detection and pile foundation technology, which is applied in the direction of foundation structure test, foundation structure engineering, test material strength by applying repeated force/pulsation force, etc. It is used on a large scale to achieve the effect of improving the comprehensive detection accuracy, improving the detection accuracy, and simple pile detection
Active Publication Date: 2021-08-03
SOUTHEAST UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the high degree of danger of explosive technology, static and dynamic pile foundation detection technology has not been used on a large scale in mainland China
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] 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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a pile foundation comprehensive detection method based on the unloading point method. In this method, the low-strain foundation pile detection technology is used to carry out pile foundation detection on the foundation pile under inspection, and a preliminary judgment is made on the integrity of the pile foundation under inspection. The position of the inspected pile foundation disease; and then use the high-strain foundation pile detection technology and the unloading point method foundation pile detection technology based on the quick-loading pile foundation equipment to perform pile foundation detection on the inspected foundation pile, and obtain the p-y curve of the two After comparison, the bearing capacity of the pile foundation is comprehensively obtained, and the displacement time history curve, acceleration time history curve, force time history curve, and force traveling wave curve obtained through the detection are compared with the low strain detection results of the pile foundation under inspection, and the position of the disease is obtained by analysis. The detection accuracy of the bearing capacity of the pile foundation is improved, and at the same time, it provides a basis for judging the specific type of the pile foundation disease.
Description
technical field [0001] The invention relates to the field of pile foundation detection, in particular to a pile foundation comprehensive detection method based on an unloading point method, which can realize pile foundation bearing capacity and pile body integrity detection. Background technique [0002] Pile foundation is one of the most important foundation forms in bridge engineering. Whether the bearing capacity of pile foundation meets the design requirements is related to the safety of bridge structure. At present, the testing of pile foundation bearing capacity mainly includes two main methods: static load test method and high strain dynamic test method. The static load test method is currently recognized as the most direct and reliable test method for testing the vertical compressive bearing capacity of foundation piles. However, this test method needs to be loaded by piles or anchor piles. The detection time is long and the detection cost is high, which has great a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/34E02D33/00
CPCE02D33/00
Inventor 戴国亮郭庆龚维明赵学亮竺明星万志辉
Owner SOUTHEAST UNIV