CN2090835U - Loading device for testing vertical bearing capacity of single pile - Google Patents
Loading device for testing vertical bearing capacity of single pile Download PDFInfo
- Publication number
- CN2090835U CN2090835U CN 91213220 CN91213220U CN2090835U CN 2090835 U CN2090835 U CN 2090835U CN 91213220 CN91213220 CN 91213220 CN 91213220 U CN91213220 U CN 91213220U CN 2090835 U CN2090835 U CN 2090835U
- Authority
- CN
- China
- Prior art keywords
- bearing capacity
- vertical bearing
- single pile
- pile
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a loading device for testing vertical bearing capacity of single pile, comprising an upper casing body (6), a lower casing body (10), a compression spring (4) which is installed in the casing body, strain pulling pressure sensor (3), an oil cylinder (5), a weight counterbalance beam (7), a weight counterbalance object (8) and a supporting bracket (9). After compressed by the compression spring (4), the utility model can store energy and generate pre-stress, when released instantly, the pre-stress can generate great dynamic which acts on the pile to realize the load on the pile; after compressed by the compression spring (4), the utility model which can store energy can load by the static load and hammer penetration method, and the utility model is suitable for using on the spot.
Description
The utility model relates to building engineering field, is the charger that is applicable to various pile foundation vertical bearing capacity tests.
At present, domestic test to vertical bearing capacity of single pile has following two kinds of apparatus and method:
(1) static load test method and apparatus, among construction work standard JGJ4-80 of general bureau of country " industry and civilian construction castinplace pile design and construction rules " and the standard GB J7-89 " Code for design of building ", the apparatus and method of static load method test vertical bearing capacity of single pile have been stipulated.But this apparatus and method need be observed stake top deflection simultaneously to applied the dead load more than the design bearing capacity value twice by test pile, not only waste time and energy, and owing to condition restriction, make to be difficult to carry out at considerable construction work scene.(2) hammering penetration test method and apparatus, Chinese Research Institute for Building Sciences's ground the national standard that proposed in 1989 examine original text " hammering penetration method experimental project ", announced this method and apparatus and implementation method.This method need possess very heavy dropping hammer and crane gear at the scene, thereby is difficult to large-area applications, might damage a top simultaneously and can't obtain result of the test.
The purpose of this utility model provides a kind of charger that is applicable to the on-the-spot test vertical bearing capacity of single pile that uses.
The purpose of this utility model is achieved in that the housing of a metal, housing is divided into upper shell and lower house two parts, lower house is placed smooth by the peg top, strain gauge drawing force and compression force transducer is placed in the inner chamber bottom of lower house, and protrude from the lower end of lower house (10), the compression spring places on the strain gauge drawing force and compression force transducer, counterweight beam level is seated on the compression spring and under the length of spring compressed oil cylinder, counterweight beam both sides apply the mass that quality equates, make counterweight beam both sides moment keep equating; With upper shell, the lower house bolton, four supports make housing keep vertical and with overlapped by the peg perpendicular bisector; Speed or acceleration transducer are fixed in by the peg side; When cylinder action, after the compression spring was compressed, the compression spring for accumulating energy produced prestressing force, and when compressing spring by abrupt release, prestressing force can be converted into huge dynamic force; Replace dead load or weight freely falling body impact with this, reach purpose being loaded by peg; Resulting every data can obtain the value of vertical bearing capacity of single pile by data processing equipment.
The utlity model has following advantage: (1) is easy to on-the-spot the use, saves time and expense.(2) by adjusting, be easy to realize loading step by step to compression spring, counterweight etc.(3) the pile body stress more approaches the static load test pile, and can not damage the stake top.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the charger of the utility model test vertical bearing capacity of single pile.
Fig. 2 is the vertical view of the charger of the utility model test vertical bearing capacity of single pile.
Fig. 3 is the lateral view of the charger of the utility model test vertical bearing capacity of single pile.
With reference to Fig. 1,2, when the test vertical bearing capacity of single pile, strain gauge drawing force and compression force transducer (3), compression spring (4), counterweight beam (7), oil cylinder (5) is installed in the lower house (10), then upper shell (6) and lower house (10) are connected with four bolton, vertically be placed in and be subjected on the test pile (1), four supports (9) make housing keep vertical and overlap with being subjected to the test pile perpendicular bisector, support (9) one ends and upper shell (6) connect, one end is fixed in ground, adjusting bolt (11) is arranged to adjust the vertical of housing in the middle of the support (9), in counterweight beam both sides counterweight identical in quality (8) is arranged, be subjected to test pile (1) both sides that speed or acceleration transducer (2) are housed.After oil cylinder (5) will compress spring (4) compression, compression spring (4) energy storage, produce prestressing force, when the abrupt release of compression spring (4), prestressing force can be converted into huge dynamic force, strain gauge drawing force and compression force transducer (3) and speed or acceleration transducer (2) will be measured numerical value and give data processing equipment by lead or radio signal transmission, can obtain the vertical bearing capacity of single pile size.Wherein compress spring (4) and be tabular plane in two ends up and down, the lower end connects with the last plane of strain gauge drawing force and compression force transducer (3), and upper end and counterweight beam (7) link; The coefficient of rigidity of compression spring (4), length is according to the design of check load.The lower end of oil cylinder (5) and counterweight beam (7) link, and stroke is greater than the reduction length of compression spring (4).As shown in Figure 3, there is oblong aperture upper shell (6) and lower house (10) both sides, and lower house (10) lower ending opening makes the counterweight beam (7) can upper and lower motion and play the guiding role.Strain gauge drawing force and compression force transducer (3) lower end protrude from lower house directly with contacted by test pile (1) top, upper/lower terminal is the plane, plane and housing are fixedly connected and are one on it.
Claims (4)
1, a kind of charger of testing vertical bearing capacity of single pile is characterized in that this device has upper shell (6), lower house (10) and is loaded on the interior strain gauge drawing force and compression force transducer (3) of housing, compression spring (4), oil cylinder (5), counterweight beam (7) and mass (8), support (9) composition.
2, according to the described test vertical bearing capacity of single pile of claim 1 charger, it is characterized in that upper shell (6), lower house (10) both sides all have slot, upper shell (6) and lower house (10) are connected into one with bolton.
3, the charger of test vertical bearing capacity of single pile according to claim 1, it is characterized in that compressing spring (4) upper/lower terminal is tabular plane.
4, the charger of test vertical bearing capacity of single pile according to claim 1, it is characterized in that strain gauge drawing force and compression force transducer (3) upper/lower terminal is the plane, last plane and lower house (10) are fixedly connected and are integral, and lower plane protrudes from the lower end of lower house (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91213220 CN2090835U (en) | 1991-02-06 | 1991-02-06 | Loading device for testing vertical bearing capacity of single pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91213220 CN2090835U (en) | 1991-02-06 | 1991-02-06 | Loading device for testing vertical bearing capacity of single pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2090835U true CN2090835U (en) | 1991-12-18 |
Family
ID=4921620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91213220 Withdrawn CN2090835U (en) | 1991-02-06 | 1991-02-06 | Loading device for testing vertical bearing capacity of single pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2090835U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413274B (en) * | 2008-11-26 | 2010-06-09 | 李道华 | Upper-stacking and lower-hanging combined load static load test pile apparatus |
| CN103046585A (en) * | 2013-01-28 | 2013-04-17 | 中国水电顾问集团西北勘测设计研究院 | Method for testing horizontal force bearing capacity static load of foundation single pile of wind power plant fan |
| CN104088307A (en) * | 2014-07-21 | 2014-10-08 | 张百全 | Method for detecting vertical bearing capacity of pile foundation |
| CN105275026A (en) * | 2015-11-11 | 2016-01-27 | 交通运输部公路科学研究所 | Detection device for bearing capacity of pile foundation |
| CN105525635A (en) * | 2016-01-18 | 2016-04-27 | 交通运输部公路科学研究所 | Loading device used for detecting axial bearing capacity of pile foundation |
| CN106501014A (en) * | 2016-09-21 | 2017-03-15 | 同济大学 | Vertical load testing machine for domain tunnel structure |
| CN107014674A (en) * | 2017-06-12 | 2017-08-04 | 福建工程学院 | The loading device and loading method of Geotechnical Engineering model test |
| CN109138005A (en) * | 2018-08-30 | 2019-01-04 | 中建七局第四建筑有限公司 | A kind of construction technology for existing load-bearing engineering pile detection structural measure |
| CN111719604A (en) * | 2020-07-09 | 2020-09-29 | 中国水利水电第十二工程局有限公司 | Device for engineering pile detection static load test |
-
1991
- 1991-02-06 CN CN 91213220 patent/CN2090835U/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413274B (en) * | 2008-11-26 | 2010-06-09 | 李道华 | Upper-stacking and lower-hanging combined load static load test pile apparatus |
| CN103046585A (en) * | 2013-01-28 | 2013-04-17 | 中国水电顾问集团西北勘测设计研究院 | Method for testing horizontal force bearing capacity static load of foundation single pile of wind power plant fan |
| CN103046585B (en) * | 2013-01-28 | 2015-10-28 | 中国电建集团西北勘测设计研究院有限公司 | Foundation single pile of wind power horizontal force bearing capacity Static Load Test Method |
| CN104088307A (en) * | 2014-07-21 | 2014-10-08 | 张百全 | Method for detecting vertical bearing capacity of pile foundation |
| CN105275026A (en) * | 2015-11-11 | 2016-01-27 | 交通运输部公路科学研究所 | Detection device for bearing capacity of pile foundation |
| CN105525635A (en) * | 2016-01-18 | 2016-04-27 | 交通运输部公路科学研究所 | Loading device used for detecting axial bearing capacity of pile foundation |
| CN106501014A (en) * | 2016-09-21 | 2017-03-15 | 同济大学 | Vertical load testing machine for domain tunnel structure |
| CN107014674A (en) * | 2017-06-12 | 2017-08-04 | 福建工程学院 | The loading device and loading method of Geotechnical Engineering model test |
| CN109138005A (en) * | 2018-08-30 | 2019-01-04 | 中建七局第四建筑有限公司 | A kind of construction technology for existing load-bearing engineering pile detection structural measure |
| CN109138005B (en) * | 2018-08-30 | 2021-05-07 | 中建七局第四建筑有限公司 | Construction process for existing load-bearing engineering foundation pile detection structure measures |
| CN111719604A (en) * | 2020-07-09 | 2020-09-29 | 中国水利水电第十二工程局有限公司 | Device for engineering pile detection static load test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101769838B (en) | Dynamic impact loading test bed and test system thereof | |
| CN2090835U (en) | Loading device for testing vertical bearing capacity of single pile | |
| CN103234830B (en) | Anchoring property experiment platform of anchor rod | |
| CN207081532U (en) | A kind of drop machine | |
| CN213448415U (en) | Heavy hammer with buffering and damping functions | |
| CN210002998U (en) | vibration damper for bottom of power transmission angle steel tower | |
| CN205175808U (en) | Horizontal dynamic equipartition loading test device of column test piece | |
| CN2338489Y (en) | Anchoring-bolt having tension indicating means | |
| CN2248204Y (en) | Vibration isolation device between building foundation and building body | |
| CN201589740U (en) | Dynamic impact loading testing table and test system thereof | |
| CN113075051B (en) | Simulation test device and test method for soft rock compressive creep similar environment | |
| Newmark | Interpretation of apparent upthrow of objects in earthquakes | |
| CN212459211U (en) | Vibration-free pull-down and push-up servo hydraulic universal material testing machine | |
| CN2041842U (en) | Material testing machine for teaching | |
| CN212621833U (en) | Composite cross arm structure test device | |
| CN220854098U (en) | Supporting system testing device | |
| CN214277752U (en) | Multifunctional dynamic disaster experimental device | |
| CN114962530B (en) | Intelligent vibration isolation device and pre-compression force release method thereof | |
| CN217231987U (en) | A hammering device for high strain detection of foundation pile | |
| CN217601763U (en) | Horizontal follow-up tension-compression conversion shock insulation tensile mechanism | |
| CN213749400U (en) | Point load test device | |
| CN212641531U (en) | High hammer for strain detection of foundation pile | |
| CN209308025U (en) | A kind of piling equipment | |
| CN220579790U (en) | Compression-type tough vibration reduction and isolation support | |
| CN214198051U (en) | Explosion-proof electrical apparatus installing support with shock-absorbing function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |