SU692940A1 - Method of evaluating pile load-carrying capacity - Google Patents
Method of evaluating pile load-carrying capacityInfo
- Publication number
- SU692940A1 SU692940A1 SU762426662A SU2426662A SU692940A1 SU 692940 A1 SU692940 A1 SU 692940A1 SU 762426662 A SU762426662 A SU 762426662A SU 2426662 A SU2426662 A SU 2426662A SU 692940 A1 SU692940 A1 SU 692940A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- carrying capacity
- pile
- pile load
- evaluating
- bearing capacity
- Prior art date
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
(54) СПОСОБ ОЦЕНКИ НЕСУЩЕЙ СПОСОБНОСТИ СВАЙ(54) METHOD FOR ESTIMATING THE CARRYING ABILITY OF PILES
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Изобретение относитс к способу оценки несущей способности сваи непосредственно на строительной площадке.The invention relates to a method for estimating the bearing capacity of a pile directly at a construction site.
Известен способ оценки несущей способности свай посредством приложени к ним одиночных ударов одинаковой энергии 1.There is a method of estimating the carrying capacity of piles by applying to it single shocks of the same energy 1.
Недостатки известного способа - значительна длительность проведени измерений и необходимость камеральной обработки результатов измерений.The disadvantages of this method are significant duration of measurements and the need for cameral processing of measurement results.
Наиболее близким решением к изобретению вл етс способ оценки несущей способности свай путем погружени в грунт одиночными , ударами двух свай, несуща способность одной из которых известна 2.The closest solution to the invention is a method for estimating the bearing capacity of piles by submerging into the ground with single punch of two piles, the carrying capacity of one of which is known 2.
Недостаток этого способа заключаетс в невысокой точности оценки несущей способности свайЦель изобретени - повышение точности оценки.The disadvantage of this method lies in the low accuracy of the estimation of the bearing capacity of the invention. The purpose of the invention is to improve the estimation accuracy.
Поставленна цель достигаетс тем, что сваи погружают в грунт до упругого отказа, замер ют величины их продольной деформации, вызванной отраженной упругой волной сжати The goal is achieved by the fact that the piles are immersed in the ground until the elastic failure, the values of their longitudinal deformation, caused by the reflected elastic wave compression, are measured.
при одиночном ударе по сва м, и по разности величин деформации оценивают несущую способность испытываемой сваи.with a single blow to the pile, and from the difference in strain values, the bearing capacity of the test pile is evaluated.
Способ осуществл ют следуюшлм образом.The method is carried out in the following manner.
На строительной гаюЩадке погружают эталонную сваю, несуща способность которой известна , до упругого отказа, после чего удар ют ее одиночнь1М ударом, отчего в свае возникают продольные колебани 6 виде ударной волны сжати . В силу условий отражени удариа волна сжати вернетс к ударному концу с двойной амплитудой, при этом измер ют прьдрльиую деформацию этой сваи от воздействи отраженной волны сжати .On a construction trap, a reference pile, the bearing capacity of which is known, is immersed until elastic failure, after which it is struck with a single blow, which causes longitudinal oscillations in the pile in the form of a compression shock wave. Due to the reflection conditions, the shock compression wave returns to the shock end with a double amplitude, and the apparent deformation of this pile due to the influence of the reflected compression wave is measured.
Испытуемую сваю погружают в грунт до упругого отказа, после чего воздействуют удароМ такой же величины, чтб и на эталонную, и измер ют продольную деформацию испытуемой сваи, вызванную отраженной волной сжати . Сравнивают вел1Мину продольной деформации эталонной сваи с величиной продольной деформации испытуемой сваи и определ ют, будет ли несуща .способность испытуемой сваи больше или меньше эталонной.The test pile is immersed in the ground until elastic failure, after which an impact of the same magnitude as the reference one is applied, and the longitudinal deformation of the test pile caused by the reflected compression wave is measured. Compare the length of the longitudinal deformation of the reference pile with the value of the longitudinal deformation of the test pile and determine whether the bearing capacity of the test pile will be greater or less than the reference one.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762426662A SU692940A1 (en) | 1976-12-07 | 1976-12-07 | Method of evaluating pile load-carrying capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762426662A SU692940A1 (en) | 1976-12-07 | 1976-12-07 | Method of evaluating pile load-carrying capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU692940A1 true SU692940A1 (en) | 1979-10-25 |
Family
ID=20685339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762426662A SU692940A1 (en) | 1976-12-07 | 1976-12-07 | Method of evaluating pile load-carrying capacity |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU692940A1 (en) |
-
1976
- 1976-12-07 SU SU762426662A patent/SU692940A1/en active
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