Device and method for in-situ test of embankment pile
An in-situ testing and measuring device technology, which is used in the testing of foundation structures, the survey of on-site foundation soil, and construction, etc., can solve the problem that indoor simulation tests cannot achieve satisfactory research results, the starting time of embankment pile technology is not long, and the on-site environmental conditions Large differences and other problems, to achieve the effect of low test cost, convenient and quick adjustment, and low cost
Inactive Publication Date: 2012-07-25
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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Problems solved by technology
However, the research on embankment pile technology has not been started for a long time, and the research on its mechanism cannot meet the actual requirements of the project.
[0003] At present, there are many studies on indoor model tests of embankment piles, but the environmental conditions of the indoor tests are quite different from those of the field, and the indoor simulation tests cannot achieve satisfactory research results.
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[0025] Such as figure 1 As shown, a specific embodiment of the embankment pile in-situ testing device of the present invention is composed of a load box filled with filling soil 2, a pile-soil differential settlement measuring device, and an earth pressure measuring component. The filling soil 2 is obtained by layered compaction, and the part of the filling soil at the same elevation as the cap 11 is also called the pile soil 21 .
[0026] Specifically, in this embodiment, the load box is composed of uprights 51, scaffolding 52, formwork 53, and some connectors, etc., which has beneficial effects such as low cost, easy acquisition, and convenient size adjustment.
[0027] The earth pressure measuring assembly comprises a plurality of earth pressure cells 6 and measuring and reading instruments ( figure 1 Not shown in ), each earth pressure cell 6 is set in different positions of the fill 2 respectively.
[0028] The pile-soil differential settlement measuring device is arran...
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The invention discloses a device for in-situ test of an embankment pile, which comprises a load box fully filled with soil, a pile-soil differential settlement measuring device and a soil pressure measuring component. The pile-soil differential settlement measuring device is disposed in the filled soil in the load box and comprises a first settlement mark disposed on a cap of the pile and a second settlement mark disposed on the filled soil. The first settlement mark comprises a base plate, a vertical rod is fixedly disposed on the base plate, and a horizontal cantilever is disposed at the upper end of the vertical rod. The second settlement mark is in the same structure as the first settlement mark and opposite to the same. The soil pressure measuring component comprises a plurality of soil pressure boxes and a measurer. The soil pressure boxes are disposed at different positions on the filled soil respectively. The invention further provides a method for in-situ test of an embankment pile. The device and the method have the advantages of low cost, high efficiency, high precision and the like.
Description
technical field [0001] The invention relates to the technical field of foundation settlement measurement, in particular to a device and method for in-situ testing of embankment piles. Background technique [0002] As a new type of foundation treatment method, embankment piles have the advantages of short construction period, small settlement and lateral deformation, and are especially suitable for various embankments, dams and other projects built on soft soil foundations, especially in some road widening projects. Significant economic and time benefits have been achieved. However, the research on embankment pile technology has not been started for a long time, and the research on its mechanism can not meet the actual requirements of engineering. [0003] At present, there are many studies on indoor model tests of embankment piles, but the environmental conditions of indoor tests are quite different from those on site, and satisfactory research results cannot be obtained fr...
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Inventor 陆显华徐宏跃楼晓明郭阳洋张方方伊轩轩
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD