CN2175933Y - Deep-foundation flat load testing instrument - Google Patents
Deep-foundation flat load testing instrument Download PDFInfo
- Publication number
- CN2175933Y CN2175933Y CN 93245749 CN93245749U CN2175933Y CN 2175933 Y CN2175933 Y CN 2175933Y CN 93245749 CN93245749 CN 93245749 CN 93245749 U CN93245749 U CN 93245749U CN 2175933 Y CN2175933 Y CN 2175933Y
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- crossbeam
- transmission rod
- lifting jack
- ring flange
- bearing plate
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- Expired - Fee Related
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- 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 relates to a testing device for the bearing force of the deep foundation soil of a high-rise building, comprising a bearing plate, a loading device, a reaction device, a displacement testing device and a data processing system, wherein, one end of the transmission rod of the loading device presses tightly on the bearing plate, the other end pushes the middle part of the crossbeam of the reaction device through a lifting jack and a pressure sensor, and the transmission rod is provided with a testing bench; the pressure of the lifting jack is adjusted to cause the bearing plate to move, the testing bench also move simultaneously, and a reading number can test a deformation modulus; the output value of the pressure sensor is bearing force. The utility model is characterized in that the utility model can simulate the force bearing situation of the foundation soil on the spot and directly keeps the testing condition of the native state of a ground body, thus representing the actual situation of the ground body.
Description
The utility model relates to a kind of surveying instrument, particularly measures skyscraper object depth bearing capacity of foundation slab test unit, belongs to on-the-spot foundation soil exploration field.
At present, determine two kinds of methods of the normal employing of foundation bearing capacity:
1. underground water table is buried deeplyer, can directly measure foundation bearing capacity and deformation modulus in testing pits.Can only dig to the 5m but test pits, it is just dangerous to surpass 5m, and main is, and underground water buries when more shallow, test pits and can only control to more than the underground water table, therefore, deep foundation (＞5m) and underground water bury more shallowly, the plate of testing pits just can't be tested.
2. bury deeplyer when the basis, underground water table is buried again when more shallow, needs to determine foundation bearing capacity and complex modulus, can adopt drill hole sampling, shop experiment records method, during drill hole sampling, just do not get sample when rock texture is broken, can not survey data, drill hole sampling is under anhydrous condition and take testing laboratory in this way under water, then there is water loss problem in sample, main be drill hole sampling after, original terrestrial stress discharges, measured foundation bearing capacity and deformation modulus and actual deviation are bigger.
The purpose of this utility model is to provide a kind of deep foundation plate instrument, and it is not influenced by bury of groundwater, can directly on-the-spot foundation bearing capacity and the deformation modulus of determining buildings bottom and the following different depth of foundation bottom.
Of the present utility model being contemplated that: directly instrument connection being drilled into needs the testing location degree of depth, put into bearing plate, make it stressed by transmission rod and loading system, measure the shift value that total lotus number and bearing plate sink, promptly draw the bearing capacity and the deformation modulus of this soil stressed zone.
Fig. 1 is the utility model theory diagram.
Fig. 2 is the utility model structural drawing.
The utility model is achieved in that (with reference to accompanying drawing) is by bearing plate (1), loading system (2), counterforce device (3), displacement tester (4), data handling systems (5) etc. are formed dark basic plate instrument, wherein bearing plate (1) is a garden shape steel plate, loading system (2) is by transmission rod (6), lifting jack (7) is formed, transmission rod (6) is made for steel pipe, two ends respectively are fixed with a ring flange (8) up and down, (9), ring flange (8) is fixedly connected with lifting jack (7) bottom, ring flange (9) is pressed on the bearing plate (1), apart from about the 1m of transmission rod (6) upper end, locate to be welded with a garden shape test board (10), counterforce device (3) is by crossbeam (11), balancing weight compositions such as (12), balancing weight is evenly distributed on crossbeam (11) two ends, displacement tester (4) is selected 4 displacement transducers (13) for use, be evenly distributed on the table top of test board (10), make it equidistant with the center, crossbeam (11) middle part is tightly withstood by pressure transducer (14) in lifting jack (7) upper end, and data handling system (5) is by pressure transducer (14), and displacement transducer (13) obtains the signal Processing data and prints.
When the utility model is implemented, transmission rod can be the multistage separate type, and every section can be connected by the ring flange of each end face, and total length is not less than 30m, crossbeam is a steel I-beam, steel plate is sling as pallet by reinforcing bar in two ends, stackable balancing weight on pallet and the crossbeam, not only supporting traverse but also formed counter force system, also can put into the square regulating block of highly different rigidity (15) between pressure transducer and the crossbeam, to guarantee the loading in effective travel of lifting jack, bearing plate adopts thick 20mm, φ 300mm steel plate.
The utility model in use, at first bearing plate is placed on and is drilled into the bottom, hole that needs MTD, transmission rod flange in the bottom dish is pressed on the bearing plate, the lifting jack upper end presses closer at the crossbeam middle part by pressure transducer (regulating block), the lower end is fixed on transmission rod top and the ring flange, displacement transducer equidistantly is placed on the test platform, the starting lifting jack, crossbeam produces counter-force, the transmission rod pressurization, bearing plate, test board produces displacement, pressure transducer output reading is the peak load of test with two times of design load, is divided into 12 grades, by little extremely big loading, loads at different levels all need to survey simultaneously reads shift value, surveys once every 10 minutes, is read by data handling system, computing, print result.
Characteristics of the present utility model are simple, the practical of test philosophy, have in-site modeling ground stressing conditions, directly perceived, the experimental condition that keeps the Rock And Soil native state, and the accurately reliable test result of data has represented the truth of Rock And Soil. Again can be according to the geology needs in same deep hole, from top to bottom, the successively standard value of bearing capacity of the soft stratum of any degree of depth of separate testing and fragmented rock body and deformation modulus.
Claims (4)
1, a kind of deep foundation plate instrument, by bearing plate (1), loading system (2), counterforce device (3), displacement tester formations such as (4), it is characterized in that: loading system (2) is by transmission rod (6), lifting jack (7) is formed, transmission rod (6) is made by steel pipe, two ends respectively are fixed with a ring flange (8) up and down, (9), ring flange (8) is fixedly connected with lifting jack (7) bottom, ring flange (9) is pressed on the bearing plate (1), and apart from transmission rod (6) upper end 1m place welding one test board (10), counterforce device (3) is by crossbeam (11), balancing weight compositions such as (12), balancing weight (12) is evenly distributed on crossbeam (11) two ends, and 4 displacement transducers (13) constitute displacement tester (4), evenly on the table top of distribution tests platform (10), make it equidistant with the center, the middle part of crossbeam (11) is tightly withstood on the top of lifting jack (7) by pressure transducer (14).
2, deep foundation plate instrument according to claim 1 is characterized in that: also can put into the square regulating block of highly different rigidity (15) between pressure transducer (14) and the crossbeam (11).
3, deep foundation plate instrument according to claim 1 and 2, it is characterized in that: transmission rod can be the multistage separate type, and every section ring flange by each end face connects, and total length is not less than 30m.
4, deep foundation plate instrument according to claim 1 and 2, it is characterized in that: crossbeam is a steel I-beam, and steel plate is sling as pallet by reinforcing bar in two ends, balancing weight is stackable on pallet, crossbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245749 CN2175933Y (en) | 1993-11-24 | 1993-11-24 | Deep-foundation flat load testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245749 CN2175933Y (en) | 1993-11-24 | 1993-11-24 | Deep-foundation flat load testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2175933Y true CN2175933Y (en) | 1994-08-31 |
Family
ID=33818613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93245749 Expired - Fee Related CN2175933Y (en) | 1993-11-24 | 1993-11-24 | Deep-foundation flat load testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2175933Y (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449063C (en) * | 2007-01-16 | 2009-01-07 | 聂德新 | Dead load type subbase deformation measuring method and device |
| WO2011022932A1 (en) * | 2009-08-26 | 2011-03-03 | 中冶集团武汉勘查研究院有限公司 | Testing method and device for foundation bed coefficient test |
| CN102061712A (en) * | 2010-12-30 | 2011-05-18 | 中交第三航务工程局有限公司 | Underwater sand conpaction pile composite foundation test system |
| CN102277884A (en) * | 2011-05-17 | 2011-12-14 | 浙江大学城市学院 | Device for treating pile head for vertical static load test and construction method thereof |
| CN102445398A (en) * | 2011-10-24 | 2012-05-09 | 黄河勘测规划设计有限公司 | Simulation testing method of soft rock and hard soil mechanical characteristics |
| CN101519870B (en) * | 2008-10-09 | 2013-04-17 | 株式会社韩国港湾技术团 | Construction method for treating soft groundwork surface layer by using bamboo web |
| CN103225320A (en) * | 2013-05-10 | 2013-07-31 | 广东工业大学 | Electromagnetic type dynamic plate load test detecting device and method |
| CN103243701A (en) * | 2013-05-10 | 2013-08-14 | 广东工业大学 | Light and convenient electromagnetic high-energy dynamic compaction device and method and application |
| CN103541338A (en) * | 2012-07-17 | 2014-01-29 | 许年春 | Soil mass test flexible bearing plate |
| CN104074209A (en) * | 2014-07-10 | 2014-10-01 | 安徽省金田建筑设计咨询有限责任公司 | Deep plate loading test device |
| CN104089826A (en) * | 2014-07-29 | 2014-10-08 | 中铁第一勘察设计院集团有限公司 | Testing device and method for compression deformation modulus and strength of soil body in deep hole |
| CN104198360A (en) * | 2014-08-28 | 2014-12-10 | 华东交通大学 | Simulation experiment device for coupling effect of acid rain, dampness heat and mechanical load |
| CN104404940A (en) * | 2014-12-05 | 2015-03-11 | 西南交通大学 | High-pressure, waterproof and self-stabilized type load testing device for deep soil layer |
| CN104502197A (en) * | 2014-12-31 | 2015-04-08 | 南京林业大学 | Continuous prepressing test method and continuous prepressing test device for medium-density fiberboard blank |
| CN105092222A (en) * | 2015-06-19 | 2015-11-25 | 重庆大学 | Loading apparatus for bearing strength test of girder integral body stability |
| CN106769501A (en) * | 2016-11-29 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of measuring method of the Deformation Module of Rock Mass of different depth |
| CN107271293A (en) * | 2017-06-29 | 2017-10-20 | 浙江大学城市学院 | A kind of Geotechnical Engineering multifunction test system |
| CN107338778A (en) * | 2017-08-07 | 2017-11-10 | 青海省建筑勘察设计研究院有限公司 | A kind of Deep Plate Load Test device |
| CN110805075A (en) * | 2019-09-29 | 2020-02-18 | 广东省建筑科学研究院集团股份有限公司 | Deep well flat plate load test connecting device, test system and test method |
-
1993
- 1993-11-24 CN CN 93245749 patent/CN2175933Y/en not_active Expired - Fee Related
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449063C (en) * | 2007-01-16 | 2009-01-07 | 聂德新 | Dead load type subbase deformation measuring method and device |
| CN101519870B (en) * | 2008-10-09 | 2013-04-17 | 株式会社韩国港湾技术团 | Construction method for treating soft groundwork surface layer by using bamboo web |
| WO2011022932A1 (en) * | 2009-08-26 | 2011-03-03 | 中冶集团武汉勘查研究院有限公司 | Testing method and device for foundation bed coefficient test |
| GB2488053A (en) * | 2009-08-26 | 2012-08-15 | Wuhan Surveying Geotechnical Res Inst Co Ltd Of Mcc | Testing method and device for coefficient of subgrade reaction test |
| GB2488053B (en) * | 2009-08-26 | 2013-07-31 | Wuhan Surveying Geotechnical Res Inst Co Ltd Of Mcc | Testing device for coefficient of subgrade reaction test |
| CN102061712A (en) * | 2010-12-30 | 2011-05-18 | 中交第三航务工程局有限公司 | Underwater sand conpaction pile composite foundation test system |
| CN102277884A (en) * | 2011-05-17 | 2011-12-14 | 浙江大学城市学院 | Device for treating pile head for vertical static load test and construction method thereof |
| CN102277884B (en) * | 2011-05-17 | 2013-05-22 | 浙江大学城市学院 | Device for treating pile head for vertical static load test and construction method thereof |
| CN102445398A (en) * | 2011-10-24 | 2012-05-09 | 黄河勘测规划设计有限公司 | Simulation testing method of soft rock and hard soil mechanical characteristics |
| CN103541338A (en) * | 2012-07-17 | 2014-01-29 | 许年春 | Soil mass test flexible bearing plate |
| CN103225320A (en) * | 2013-05-10 | 2013-07-31 | 广东工业大学 | Electromagnetic type dynamic plate load test detecting device and method |
| CN103243701A (en) * | 2013-05-10 | 2013-08-14 | 广东工业大学 | Light and convenient electromagnetic high-energy dynamic compaction device and method and application |
| CN103243701B (en) * | 2013-05-10 | 2015-05-06 | 广东工业大学 | Light and convenient electromagnetic high-energy dynamic compaction device and method and application |
| CN104074209A (en) * | 2014-07-10 | 2014-10-01 | 安徽省金田建筑设计咨询有限责任公司 | Deep plate loading test device |
| CN104074209B (en) * | 2014-07-10 | 2016-04-06 | 安徽省金田建筑设计咨询有限责任公司 | Deep plate load testing device |
| CN104089826A (en) * | 2014-07-29 | 2014-10-08 | 中铁第一勘察设计院集团有限公司 | Testing device and method for compression deformation modulus and strength of soil body in deep hole |
| CN104198360A (en) * | 2014-08-28 | 2014-12-10 | 华东交通大学 | Simulation experiment device for coupling effect of acid rain, dampness heat and mechanical load |
| CN104404940A (en) * | 2014-12-05 | 2015-03-11 | 西南交通大学 | High-pressure, waterproof and self-stabilized type load testing device for deep soil layer |
| CN104404940B (en) * | 2014-12-05 | 2016-04-13 | 西南交通大学 | A kind of Deep Soil Layers high pressure waterproof self-stabilising load test device |
| CN104502197A (en) * | 2014-12-31 | 2015-04-08 | 南京林业大学 | Continuous prepressing test method and continuous prepressing test device for medium-density fiberboard blank |
| CN104502197B (en) * | 2014-12-31 | 2017-08-11 | 南京林业大学 | A kind of continuous pre-compression test method of medium density fibre board (MDF) slab |
| CN105092222A (en) * | 2015-06-19 | 2015-11-25 | 重庆大学 | Loading apparatus for bearing strength test of girder integral body stability |
| CN105092222B (en) * | 2015-06-19 | 2017-08-29 | 重庆大学 | A kind of loading device of girder steel monolithic stability bearingtest |
| CN106769501A (en) * | 2016-11-29 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of measuring method of the Deformation Module of Rock Mass of different depth |
| CN107271293A (en) * | 2017-06-29 | 2017-10-20 | 浙江大学城市学院 | A kind of Geotechnical Engineering multifunction test system |
| CN107271293B (en) * | 2017-06-29 | 2020-08-04 | 浙江大学城市学院 | Geotechnical engineering multifunctional test system |
| CN107338778A (en) * | 2017-08-07 | 2017-11-10 | 青海省建筑勘察设计研究院有限公司 | A kind of Deep Plate Load Test device |
| CN107338778B (en) * | 2017-08-07 | 2023-02-24 | 青海省建筑勘察设计研究院股份有限公司 | Deep layer load test device |
| CN110805075A (en) * | 2019-09-29 | 2020-02-18 | 广东省建筑科学研究院集团股份有限公司 | Deep well flat plate load test connecting device, test system and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |