CN2407353Y - Multi-layer anchor static load tester - Google Patents
Multi-layer anchor static load tester Download PDFInfo
- Publication number
- CN2407353Y CN2407353Y CN 00203161 CN00203161U CN2407353Y CN 2407353 Y CN2407353 Y CN 2407353Y CN 00203161 CN00203161 CN 00203161 CN 00203161 U CN00203161 U CN 00203161U CN 2407353 Y CN2407353 Y CN 2407353Y
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- Prior art keywords
- earth anchor
- layer
- circle
- earth
- component cap
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- Expired - Fee Related
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Abstract
The utility model relates to a multi-layer ground-anchor static load tester, comprising a bearing plate, a vertical post, a component force cap, a load top, a plurality of ground anchors and a pull rod. The ground anchors form a single-layer ground-anchor ring by surrounding the vertical post. The utility model is characterized in that one-three layers of ground-anchor rings are added outside the single-layer ground-anchor ring. The utility model has the characteristics of wide testing scope, safe use, economical price and convenience and can be widely used for various testing verifying places of the foundation bearing capacity in the construction market.
Description
The utility model relates to a kind of plate machine, and especially earth anchor plate loading test machine belongs to the pressure test technical field.
Plate is a kind of test method of test foundation bearing capacity and deformation parameter.Its principle is: in position under the condition, to foundation test pit imposed load step by step, and observe the sedimentation and deformation of foundation simultaneously.The test method of planar loading has preloading plate loading test method and earth anchor plate loading test method, the former is a preloading weight (as iron block) on bearing plate, with object gravity is load, this mode load device is simple in structure, but the preloading thing easily tilts, and the preloading thing is difficult for excessive, and test specification is little, and the carrying of preloading thing is placed time-consuming, bothersome, and required expense is also high; The latter is at test pit disposed about one anchor of enclosing the land, place column on the bearing plate above on the pile foundation of test pit or composite foundation, one end of earth anchor screws in underground, the other end bassets, the termination of basseting is connected with the column top by pull bar, form umbrella shape counter-force framework, earth anchor and test pit limit, must maintain a certain distance between earth anchor and the earth anchor, the loading top (as lifting jack) of imposed load is between bearing plate and column, when the loading top application adds load, the reacting force of each earth anchor forms one and oppositely makes a concerted effort, oppositely make a concerted effort to determine the test specification of testing machine, this kind form testing machine, rack construction compactness, globality, good stability, but owing to have only one deck earth anchor circle, the earth anchor negligible amounts, so it is also less oppositely to make a concerted effort, the test specification of at present commercially available earth anchor plate loading test machine is many below 30 tons, and, the restriction that required by the earth anchor spacing, earth anchor quantity is difficult to increase considerably, so counter force system is difficult to that also big breakthrough is arranged.In recent years, along with the continuous development of construction market is perfect, quality monitoring to the engineering construction project is more and more paid attention to, and increasing along with the development of nation-building, large construction project, facility to the ground test of bearing capacity is had higher requirement, require test facilities to answer wide accommodation, safe in utilization, economical, convenient, clearly, existing preloading basic load and earth anchor plate loading test device can not satisfy the demand of construction market development fully, need the new ground load test facility of development.
The purpose of this utility model is to provide a kind of wide accommodation, uses economic, safety, earth anchor plate loading test machine easily.
The purpose of this utility model is achieved in that
A kind of multilayer earth anchor plate loading test machine, it comprises bearing plate, column, component cap, loading top, some earth anchors and pull bar, wherein, the component cap is positioned at the column top, the loading top is positioned at the column bottom, some earth anchors are along forming an individual layer earth anchor circle around column, one end of pull bar is connected with the component cap, the other end is connected with earth anchor, its improvement is, described individual layer earth anchor circle is set up 1-3 layer earth anchor circle outward, 1-3 component cap set up along short transverse in described column top, and the earth anchor circle of setting up is connected by pull bar with the component cap.
Above-mentioned testing machine in every layer of earth anchor circle, is provided with triatic stay between the adjacent earth anchor.
Above-mentioned testing machine, described individual layer earth anchor circle is set up two-layer earth anchor circle outward, ground floor earth anchor circle radius is that 1.8-1.9 rice, earth anchor number are that 8-16 root, component cap height are 2.2 meters, second layer earth anchor circle radius is that 2.6-3.3 rice, earth anchor number are that 16-32 root, component cap height are 3.2-4.0 rice, the 3rd layer of earth anchor circle radius is that 3.4-5.8 rice, earth anchor number are that 16-32 root, component cap height are that the distance between the earth anchor is greater than 1 meter in 4.2-7.1 rice, the every layer of earth anchor circle.
The utility model compared with prior art has the following advantages:
1. the utility model adopts the structural design of multilayer earth anchor circle, the number of earth anchor can be increased considerably, thereby make the load of earth anchor plate loading test machine be able to breakthrough raising, the load of 30 tons of at present commercially available earth anchor plate loading test machines can be brought up to 300 tons, realize the goal of the invention that test specification is wide;
2. the structural design of the utility model multilayer earth anchor circle can be guaranteed the spacing requirement between earth anchor and test pit and earth anchor and the earth anchor when increasing considerably the earth anchor number, and safe in utilization, test accurately;
3. the utility model can be chosen the number of plies of earth anchor circle flexibly according to test specification, and the assembling of each layer earth anchor circle, dismounting are easily, and be easy to use;
4. parts of the present utility model and assembling and prior art are basic identical, do not need special processing and fabricating, low cost of manufacture;
To sum up, the utility model is real to be wide, safe in utilization, economic, the foundation bearing force test device easily of a kind of test specification, can be widely used in the test verification place of various foundation bearing capacities in the construction market.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation;
Fig. 2 is a multilayer earth anchor circle cross-sectional structure synoptic diagram.
Consult Fig. 1, embodiment shown in the figure is the embodiment of a two-layer earth anchor circle.Among the figure, earth anchor 5 is the vane type earth anchor, blade is a spiral fashion, blade end screws in underground, earth anchor and horizontal angle can be about 45 °, column 1 is made up of two joint steel pipes up and down, the component cap 2 of internal layer earth anchor circle withhold under save on the steel pipe, the component cap 4 of outer earth anchor circle is withheld on last joint steel pipe, component cap excircle is welded with some pull hooks that are connected with pull bar 6, hydraulic jack is adopted on loading top 4, and following joint steel pipe directly is placed on the hydraulic jack, and the hydraulic jack footstock is on bearing plate 7, bearing plate is pressed on the pile foundation 8 in the test pit, excircle place in plane is provided with two dial gauges 9 of measuring settling amount on the bearing plate, the tensimeter 10 of pressure measurement is housed, when the loading top application adds load on the hydraulic jack, column moves upward, pull bar stretching in the two-layer earth anchor circle is implemented downward opposition to bearing plate, and the number of plies of earth anchor circle is many more, opposition is big more.
Consult Fig. 2, for prevent that earth anchor from moving inward under the horizontal component effect, in every layer of earth anchor circle, be provided with triatic stay 11 between adjacent two earth anchors, triatic stay is the steel pipe of certain-length, earth anchor exposes on the termination of bottom surface and is with pipe box 12, and the two ends of steel pipe are resisted against on the pipe box external diameter, during hydraulic jack imposed load stretching pull bar, the earth anchor circle inwardly draws in, can be with the triatic stay stretching between earth anchor, form a fixing bracing ring frame, can effectively prevent the horizontal shift of earth anchor after stressed.
The number of plies of the utility model earth anchor circle can be chosen according to the test specification of pile foundation or Bearing Capacity of Composite Foundation, bearing capacity hour can adopt individual layer or double-deck earth anchor circle, when bearing capacity is big, can adopt three layers or four layers of earth anchor circle, certainly, and the requirement for bearing capacity of pile foundation is very high and test site space when enough big, also can adopt the earth anchor circle greater than 4 layers.
Claims (3)
1. multilayer earth anchor plate loading test machine, it comprises bearing plate, column, component cap, loading top, some earth anchors and pull bar, wherein, the component cap is positioned at the column top, the loading top is positioned at the column bottom, some earth anchors form an individual layer earth anchor circle around column, one end of pull bar is connected with the component cap, the other end is connected with earth anchor, it is characterized in that, described individual layer earth anchor circle is set up 1-3 layer earth anchor circle outward, 1-3 component cap set up along short transverse in described column top, and the earth anchor circle of setting up is connected by pull bar with the component cap.
2. testing machine according to claim 1 is characterized in that, in every layer of earth anchor circle, is provided with triatic stay between the adjacent earth anchor.
3. testing machine according to claim 2, it is characterized in that, described individual layer earth anchor circle is set up two-layer earth anchor circle outward, ground floor earth anchor circle radius is that 1.8-1.9 rice, earth anchor number are that 8-16 root, component cap height are 2.2 meters, second layer earth anchor circle radius is that 2.6-3.3 rice, earth anchor number are that 16-32 root, component cap height are 3.2-4.0 rice, the 3rd layer of earth anchor circle radius is that 3.4-5.8 rice, earth anchor number are that 16-32 root, component cap height are that the distance between the earth anchor is greater than 1 meter in 4.2-7.1 rice, the every layer of earth anchor circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203161 CN2407353Y (en) | 2000-02-03 | 2000-02-03 | Multi-layer anchor static load tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203161 CN2407353Y (en) | 2000-02-03 | 2000-02-03 | Multi-layer anchor static load tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2407353Y true CN2407353Y (en) | 2000-11-22 |
Family
ID=33571913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00203161 Expired - Fee Related CN2407353Y (en) | 2000-02-03 | 2000-02-03 | Multi-layer anchor static load tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2407353Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183427A (en) * | 2011-05-25 | 2011-09-14 | 中国科学院国家天文台 | Hydraulic ground anchor fatigue characteristic testing device |
| CN102183428A (en) * | 2011-05-25 | 2011-09-14 | 中国科学院国家天文台 | Device for testing fatigue property of mechanical ground anchor |
| CZ302722B6 (en) * | 2010-03-23 | 2011-09-21 | Ceské vysoké ucení technické v Praze, Fakulta stavební, Experimentální centrum | Device to determine working diagram of ground anchors in tension |
| CN102661898A (en) * | 2012-05-12 | 2012-09-12 | 山东科技大学 | Method for testing mechanical parameters of stone by using center anchored bearing plate |
| CN103195042A (en) * | 2013-03-15 | 2013-07-10 | 安徽省交通投资集团有限责任公司 | Deeply-loadable spiral plate load test device and method thereof |
| CN106501083A (en) * | 2016-12-12 | 2017-03-15 | 兰州理工大学 | Large scale structure multiple spot ground anchor type drag-line charger and test method |
-
2000
- 2000-02-03 CN CN 00203161 patent/CN2407353Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ302722B6 (en) * | 2010-03-23 | 2011-09-21 | Ceské vysoké ucení technické v Praze, Fakulta stavební, Experimentální centrum | Device to determine working diagram of ground anchors in tension |
| CN102183427A (en) * | 2011-05-25 | 2011-09-14 | 中国科学院国家天文台 | Hydraulic ground anchor fatigue characteristic testing device |
| CN102183428A (en) * | 2011-05-25 | 2011-09-14 | 中国科学院国家天文台 | Device for testing fatigue property of mechanical ground anchor |
| CN102183427B (en) * | 2011-05-25 | 2012-09-05 | 中国科学院国家天文台 | Hydraulic ground anchor fatigue characteristic testing device |
| CN102183428B (en) * | 2011-05-25 | 2012-09-05 | 中国科学院国家天文台 | Device for testing fatigue property of mechanical ground anchor |
| CN102661898A (en) * | 2012-05-12 | 2012-09-12 | 山东科技大学 | Method for testing mechanical parameters of stone by using center anchored bearing plate |
| CN102661898B (en) * | 2012-05-12 | 2014-02-12 | 山东科技大学 | Method for testing mechanical parameters of stone by using center anchored bearing plate |
| CN103195042A (en) * | 2013-03-15 | 2013-07-10 | 安徽省交通投资集团有限责任公司 | Deeply-loadable spiral plate load test device and method thereof |
| CN103195042B (en) * | 2013-03-15 | 2015-09-16 | 安徽省交通控股集团有限公司 | A kind of can deep layer load screw plate test devices and methods therefor |
| CN106501083A (en) * | 2016-12-12 | 2017-03-15 | 兰州理工大学 | Large scale structure multiple spot ground anchor type drag-line charger 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 |