CN204456242U - Existing building foundation pile static loading test device - Google Patents
Existing building foundation pile static loading test device Download PDFInfo
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- CN204456242U CN204456242U CN201520068063.0U CN201520068063U CN204456242U CN 204456242 U CN204456242 U CN 204456242U CN 201520068063 U CN201520068063 U CN 201520068063U CN 204456242 U CN204456242 U CN 204456242U
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Abstract
The utility model relates to a kind of existing building foundation pile static loading test device, and for measuring existing building foundation pile vertical bearing capacity, this device comprises load maintainer, counter-force mechanism and observation switching mechanism; Load maintainer comprises the jack of several parallel connection, oil circuit and electric oil pump, and counter-force mechanism is reaction beam, and observation switching mechanism comprises reference pegs, datum line beam, fixed pulley, wire rope, counterweight and measurement components; During detection, what reference pegs was vertical is fixed on plate top surface, datum line beam level be fixed on reference pegs, fixed pulley is fixed on datum line beam, wire rope is around on fixed pulley, one end fixed weight of wire rope, the other end of wire rope by hook vertical be fixed on test pile, test pile end face is provided with jack, jack end face is provided with reaction beam, reaction beam blocks hole and contacts with base plate bottom surface, and wire rope and datum line beam are provided with measurement components, for the displacement of measuring steel wire rope.The sedimentation deformation of test pile is converted to ground by wire rope by observation switching mechanism, is convenient to observation, safe and reliable.
Description
Technical field
The utility model relates to a kind of existing building foundation pile static loading test device, for measuring existing building foundation pile vertical bearing capacity.
Background technology
Since reform and opening-up, China's Development of China's Urbanization is constantly accelerated, and is developed to present stage, and the investment of China every year in infrastructure is up to more than 2,000,000,000,000 RMB.Can estimate, from now on 10 ~ 50 years will be the peak period that China's existing building maintenance of works is reinforced.And the feature of China's existing building engineering reinforcement transformation is that scope is wide, quantity is many, engineering quantity is large, investment cost is high.
The Gernral Check-up of existing building, being accredited as construction work maintenance and strengthening reconstruction provides foundation, is the important component part that existing building maintenance of works is reinforced.And existing building pile bearing capacity detect be existing building Gernral Check-up, qualification in part and parcel, it is the safe most important condition of structural quality.Detect existing building pile bearing capacity accurately and effectively, building safety can be ensured and normally to use, again can optimal design, rationally determine safety factor, reduce various material consumption, be significant.
At present, existing building pile bearing capacity detects and usually adopts vertical displacement observation procedure, namely, direct observation stake top plane vertical displacement, in detection experiment process, because foundation pile is below building base plate, in this way implement more difficult, safety factor is not high yet, so design a set of existing building foundation pile static loading test system safely and effectively, having an actual operation to seem particularly important.
Summary of the invention
For existing technical problem, the purpose of this utility model is to provide a kind of existing building foundation pile static loading test device, and this device is simple to operate, work safety, can provide reliably, pile bearing capacity data accurately for existing building strengthening reconstruction.
In order to solve above-mentioned technical problem, the technical scheme of employing of the present utility model is:
Existing building foundation pile static loading test device, comprises load maintainer, counter-force mechanism and observation switching mechanism; Described load maintainer comprises the jack of several parallel connection, oil circuit and electric oil pump, and described counter-force mechanism is reaction beam, and described observation switching mechanism comprises reference pegs, datum line beam, fixed pulley, wire rope, counterweight and measurement components; During detection, what reference pegs was vertical is fixed on plate top surface, datum line beam level be fixed on reference pegs, fixed pulley is fixed on datum line beam, the buckle of steel wire penetrating fixed pulley around on fixed pulley, one end fixed weight of wire rope, the other end of wire rope by hook vertical be fixed on test pile, test pile end face is provided with jack, jack end face is provided with reaction beam, reaction beam blocks hole and contacts with base plate bottom surface, and wire rope and datum line beam are provided with measurement components, for the displacement of measuring steel wire rope.
In the utility model, described measurement components comprises dial gage or movable sensor, steel disc and line slideway, dial gage or movable sensor are fixed on datum line beam, steel disc is fixing on a steel cord, one end of steel disc is arranged in vertical line slideway, and the measuring junction of dial gage or movable sensor contacts with the end face of steel disc.
In the utility model, the two or four that is embedded with of described test pile symmetry is linked up with, and fixed pulley quantity is consistent with hook number.
The beneficial effects of the utility model are:
Jack can be alone or in parallel according to the size of test pile heap(ed) capacity; The sedimentation deformation of test pile is converted to ground by wire rope by observation switching mechanism, is convenient to observation, too increases the safety in process of the test, and accuracy of observation meets code requirement simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model when detecting.
Fig. 2 is the structural representation of the utility model observation switching mechanism when detecting.
In figure: 1-test pile; 2-jack; 3-reaction beam; 4-reference pegs; 5-datum line beam; 6-observes switching mechanism; 7-links up with; 8-fixed pulley; 9-dial gage; 10-counterweight; 11-wire rope.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As shown in Figure 1, existing building foundation pile static loading test device, comprises load maintainer, counter-force mechanism and observation switching mechanism 6; Described load maintainer comprises the jack 2 of several parallel connection, oil circuit and electric oil pump (electric oil pump is connected with jack 2 by oil circuit), described counter-force mechanism is reaction beam 3, and described observation switching mechanism 6 comprises reference pegs 4, datum line beam 5, fixed pulley 8, wire rope 11, counterweight 10 and measurement components.
Before detection, first to build one for existing building foundation pile static loading test device to install and working space, first on existing building base plate, chiseling an ellipse or rectangular hole, (bore hole size is determined by reaction beam 3 size, with reaction beam 3 can smoothly lower under building base plate for principle), then the earth under building base plate is emptied, form an installing space, then the test pile 1(of certain length is cut out with jack 2, girder steel and building base plate can form load maintainer smoothly and counter-force mechanism is principle), last test pile 1 after cutting out makes pile cover.
As shown in Figure 1, when detecting, what reference pegs 4 was vertical is fixed on plate top surface, datum line beam 5 level be fixed on reference pegs 4, fixed pulley 8 is fixed on datum line beam 5, wire rope 11 through fixed pulley 8 buckle and around on fixed pulley 8, one end fixed weight 10 of wire rope 11, counterweight 10 ensures that wire rope 11 is strained all the time, the other end of wire rope 11 by hook 7 vertical be fixed on test pile 1, test pile 1 end face is provided with jack 2, jack 2 end face is provided with reaction beam 3, reaction beam 3 blocks hole and contacts with base plate bottom surface, wire rope 11 and datum line beam 5 are provided with measurement components, for the displacement of measuring steel wire rope 11.
In the utility model, jack 2 can be alone or in parallel according to the size of test pile 1 heap(ed) capacity, when jack 2 works, jack 2 pairs of reaction beams 3 apply active force, and the reaction beam 3 pairs of base plates apply active forces, under the effect of reaction beam 3 and base plate, the other end of jack 2 provides active force to test pile 1, test pile 1 is sedimentation downwards vertically under active force, and drives wire rope 11 to move downward by hook 7, and now measurement components can the displacement of measuring steel wire rope 11.The sedimentation deformation of test pile 1 is converted to ground by wire rope 11 by described observation switching mechanism 6, is convenient to observation, too increases the safety in process of the test, and accuracy of observation meets code requirement simultaneously.
In the utility model, described reaction beam 3 is calculated by upper building load and building base plate punching shear resistant performance and designs and produces, indeformable in process of the test, do not destroy, and meets test requirements document
In the utility model, when estimating maximum load amount and being larger, several jack 2 parallel connection can be used, estimate maximum load amount at less than 80% of jack 2 range.
In the utility model, described test pile 1 symmetry be embedded with two or four hook 7(diameter or the length of side is not more than the test pile 1 of 500mm, 200mm symmetry below stake top buries two hooks 7 underground; Diameter or the length of side are greater than the test pile 1 of 500mm, and 200mm symmetry below stake top buries 4 hooks 7 underground), fixed pulley 8 quantity is consistent with hook 7 quantity.
As shown in Figure 2, in the present embodiment, described measurement components comprises dial gage 9, steel disc and line slideway, dial gage 9 is fixed on datum line beam 5, steel disc is fixed on wire rope 11, and one end of steel disc is arranged in vertical line slideway, and the measuring junction of dial gage 9 contacts with the end face of steel disc.It should be noted, described dial gage 9 can replace to displacement transducer also can complete same function, is fixed on by displacement transducer on datum line beam 5, the measuring junction of displacement transducer is contacted with the end face of steel disc the vertical displacement can measuring steel cable equally.The measuring junction of dial gage 9 or displacement transducer contacts with steel disc, and when test pile 1 is subjected to displacement, wire rope 11 also synchronous shift, the displacement of the steel disc that dial gage 9 or displacement transducer detect is consistent with the displacement of test pile 1.
It should be noted that; the foregoing is only preferred embodiment of the present utility model; instead of the restriction to technical solutions of the utility model, any equivalent replacement of doing the utility model technical characteristic or corresponding improvement, still within protection domain of the present utility model.
Claims (3)
1. an existing building foundation pile static loading test device, is characterized in that: comprise load maintainer, counter-force mechanism and observation switching mechanism; Described load maintainer comprises the jack of several parallel connection, oil circuit and electric oil pump, and described counter-force mechanism is reaction beam, and described observation switching mechanism comprises reference pegs, datum line beam, fixed pulley, wire rope, counterweight and measurement components; During detection, what reference pegs was vertical is fixed on plate top surface, datum line beam level be fixed on reference pegs, fixed pulley is fixed on datum line beam, the buckle of steel wire penetrating fixed pulley around on fixed pulley, one end fixed weight of wire rope, the other end of wire rope by hook vertical be fixed on test pile, test pile end face is provided with jack, jack end face is provided with reaction beam, reaction beam blocks hole and contacts with base plate bottom surface, and wire rope and datum line beam are provided with measurement components, for the displacement of measuring steel wire rope.
2. existing building foundation pile static loading test device as claimed in claim 1, it is characterized in that: described measurement components comprises dial gage or movable sensor, steel disc and line slideway, dial gage or movable sensor are fixed on datum line beam, steel disc is fixing on a steel cord, one end of steel disc is arranged in vertical line slideway, and the measuring junction of dial gage or movable sensor contacts with the end face of steel disc.
3. existing building foundation pile static loading test device as claimed in claim 1, is characterized in that: the two or four that is embedded with of described test pile symmetry is linked up with, and fixed pulley quantity is consistent with hook number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520068063.0U CN204456242U (en) | 2015-01-30 | 2015-01-30 | Existing building foundation pile static loading test device |
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| CN201520068063.0U CN204456242U (en) | 2015-01-30 | 2015-01-30 | Existing building foundation pile static loading test device |
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| CN204456242U true CN204456242U (en) | 2015-07-08 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241418A (en) * | 2015-10-30 | 2016-01-13 | 浙江大学 | Novel ground surface settlement test device and method |
| CN105735371A (en) * | 2016-03-04 | 2016-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Frequency-conversion horizontal cyclic loading test device |
| CN106066141A (en) * | 2016-06-15 | 2016-11-02 | 武汉中和工程技术有限公司 | The pile body shifting discharge observation device of foundation pile self-balanced static-load testing and measuring method |
| CN106836315A (en) * | 2017-01-10 | 2017-06-13 | 广西瑞宇建筑科技有限公司 | A kind of vertical displacement detection means |
| CN106939622A (en) * | 2017-03-30 | 2017-07-11 | 上海理工大学 | Influence development test device of the enlarged footing spacing to base expanding and base expanding resistance to plucking pile bearing capacity |
| CN107975075A (en) * | 2017-11-08 | 2018-05-01 | 浙江理工大学 | A kind of construction technology for existing load-bearing engineering pile detection structural measure |
| CN108331039A (en) * | 2018-02-07 | 2018-07-27 | 福建省永正工程质量检测有限公司 | A kind of foundation pile static loading test detecting system |
| CN108824508A (en) * | 2018-09-12 | 2018-11-16 | 贵州鑫瑞达科技有限公司 | A kind of load test system for concrete pipe base |
| CN110130418A (en) * | 2019-05-27 | 2019-08-16 | 西安大地工程检测有限公司 | Sedimentation deformation observes auxiliary device |
| CN113029754A (en) * | 2021-03-23 | 2021-06-25 | 新疆维吾尔自治区煤田地质局一六一队新能开发总公司机修厂 | Voltage-stabilizing loading device |
| CN114295483A (en) * | 2021-12-29 | 2022-04-08 | 常熟市工程质量检测中心 | Loading device and loading method for structure performance test of prefabricated laminated slab |
| CN114855892A (en) * | 2022-05-27 | 2022-08-05 | 中建八局第三建设有限公司 | Load pressurizing device for static load experiment of test pile |
-
2015
- 2015-01-30 CN CN201520068063.0U patent/CN204456242U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241418A (en) * | 2015-10-30 | 2016-01-13 | 浙江大学 | Novel ground surface settlement test device and method |
| CN105735371A (en) * | 2016-03-04 | 2016-07-06 | 中国电建集团华东勘测设计研究院有限公司 | Frequency-conversion horizontal cyclic loading test device |
| CN106066141A (en) * | 2016-06-15 | 2016-11-02 | 武汉中和工程技术有限公司 | The pile body shifting discharge observation device of foundation pile self-balanced static-load testing and measuring method |
| CN106836315A (en) * | 2017-01-10 | 2017-06-13 | 广西瑞宇建筑科技有限公司 | A kind of vertical displacement detection means |
| CN106939622A (en) * | 2017-03-30 | 2017-07-11 | 上海理工大学 | Influence development test device of the enlarged footing spacing to base expanding and base expanding resistance to plucking pile bearing capacity |
| CN107975075B (en) * | 2017-11-08 | 2020-05-12 | 浙江理工大学 | Construction process for existing load-bearing engineering foundation pile detection structure measures |
| CN107975075A (en) * | 2017-11-08 | 2018-05-01 | 浙江理工大学 | A kind of construction technology for existing load-bearing engineering pile detection structural measure |
| CN108331039A (en) * | 2018-02-07 | 2018-07-27 | 福建省永正工程质量检测有限公司 | A kind of foundation pile static loading test detecting system |
| CN108331039B (en) * | 2018-02-07 | 2020-02-18 | 福建省永正工程质量检测有限公司 | Foundation pile static test detection system |
| CN108824508A (en) * | 2018-09-12 | 2018-11-16 | 贵州鑫瑞达科技有限公司 | A kind of load test system for concrete pipe base |
| CN110130418A (en) * | 2019-05-27 | 2019-08-16 | 西安大地工程检测有限公司 | Sedimentation deformation observes auxiliary device |
| CN110130418B (en) * | 2019-05-27 | 2020-09-08 | 西安大地工程检测有限公司 | Settlement displacement observation auxiliary device |
| CN113029754A (en) * | 2021-03-23 | 2021-06-25 | 新疆维吾尔自治区煤田地质局一六一队新能开发总公司机修厂 | Voltage-stabilizing loading device |
| CN114295483A (en) * | 2021-12-29 | 2022-04-08 | 常熟市工程质量检测中心 | Loading device and loading method for structure performance test of prefabricated laminated slab |
| CN114855892A (en) * | 2022-05-27 | 2022-08-05 | 中建八局第三建设有限公司 | Load pressurizing device for static load experiment of test pile |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430090 No.269, Xingsan Road, Shamao street, Hannan District, Wuhan City, Hubei Province Patentee after: Hubei Construction Engineering Quality Supervision, inspection and Testing Center Co.,Ltd. Patentee after: HUBEI URBAN CONSTRUCTION VOCATIONAL AND TECHNOLOGICAL College Address before: 430090 No.269, Xingsan Road, Shamao street, Hannan District, Wuhan City, Hubei Province Patentee before: HUBEI PROVINCIAL CENTER FOR QUALITY SUPERVISION AD TEST OF CONSTRUCTION ENGINEERING Patentee before: HUBEI URBAN CONSTRUCTION VOCATIONAL AND TECHNOLOGICAL College |
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| CP01 | Change in the name or title of a patent holder |