CN209779717U - Simple flat plate load test device based on soil counter-force - Google Patents
Simple flat plate load test device based on soil counter-force Download PDFInfo
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- CN209779717U CN209779717U CN201920271867.9U CN201920271867U CN209779717U CN 209779717 U CN209779717 U CN 209779717U CN 201920271867 U CN201920271867 U CN 201920271867U CN 209779717 U CN209779717 U CN 209779717U
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- 239000002689 soil Substances 0.000 title claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000000446 fuel Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a simple flat plate load test device based on soil counterforce, which can be applied to the field of on-site foundation soil exploration and comprises a cross beam and a jack which is positioned on one side of the cross beam and is vertical to the cross beam, two ends of one side of the cross beam, which is far away from the jack, are respectively connected with a fixed steel plate through a rotating shaft, a torsion spring is sleeved on the rotating shaft, the two ends of the cross beam are respectively provided with a triangular lug with an inclined surface exceeding the rotating shaft at the outer side of the rotating shaft, the lower part of the middle position of the cross beam is provided with a jack supporting block, the jack is contacted with the jack supporting block which is a hollow triangular prism structure, the cross section of the jack support block is an isosceles obtuse triangle, the jack support block further comprises a jacking block, the jacking block is fixed at the obtuse angle outer side of the isosceles obtuse triangle of the jack support block, and the gravity center of the jack support block is located on the central axis of the jacking block.
Description
Technical Field
The utility model relates to a field foundation soil surveys the field, especially relates to a simple and easy dull and stereotyped load test device based on soil counter-force.
Background
The load test is an in-situ test method of the foundation soil, and can be used for measuring the bearing capacity and the deformation characteristic of the rock soil within the main influence range of the stress under the bearing plate. The flat plate load test can be used for the following purposes: 1. determining a characteristic value of the bearing capacity of the foundation soil, and providing a basis for evaluating the bearing capacity of the foundation soil; 2. determining the deformation modulus of the foundation soil; 3. determining the foundation soil foundation bed reaction force coefficient and the like. The device for the load test comprises a load plate, a counterforce device, a force measuring device, a deformation measuring device and the like. The traditional reaction device comprises anchor piles and a ballast weight, and the main type of the reaction device for the shallow flat plate load test is the ballast weight. The reaction device is complex in operation and inconvenient to use, and the terrain at the test point position is required to be flat and is greatly influenced by terrain control.
In order to solve the problems, the chinese patent with publication number CN208009500U discloses a simple flat plate load test device based on soil reaction force, which comprises a beam, a jack, a bearing plate and a ribbed steel plate, wherein the ribbed steel plate is respectively arranged at two ends of the beam; and the jack is vertically arranged below the middle position of the cross beam, the bottom of the jack is arranged on the bearing plate, and the bearing plate is positioned on the foundation and correspondingly arranged at the middle position of the cross beam. The utility model discloses on the basis with the miniaturisation of load test overall device, utilize the counter-force type of soil weight as the counter weight around the test point to convenient realization load test's operation. The utility model discloses when guaranteeing ground inspection achievement accuracy, improved test efficiency.
according to the scheme, the main type of the counter-force device for the existing shallow flat plate load test is the weight, the operation is complicated, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to provide a simple flat plate load test device based on soil counterforce, which is characterized in that the two ends of one side surface of a crossbeam are respectively connected with a fixed steel plate through a rotating shaft,
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a simple and easy dull and stereotyped load test device based on soil reaction, includes the crossbeam and is located crossbeam one side and crossbeam vertically jack, the crossbeam deviates from jack side surface both ends are connected with fixed steel sheet through the pivot respectively partially.
Through adopting above-mentioned technical scheme, deviate from jack side surface at the crossbeam and be connected with fixed steel sheet through the pivot respectively in both ends partially, place dull and stereotyped load test device in the ground hole, the jack that rises, fixed steel sheet can insert the ground hole both sides soil horizon under the effect of jack in, avoid needing the manpower to insert fixed steel sheet in the soil horizon, solved the manual problem that inserts the fixed steel sheet in the soil horizon degree of difficulty big and waste time and energy.
The utility model discloses further set up to: torsion springs are sleeved on the rotating shafts, and the torsion springs enable the fixed steel plates at the two ends of the surface of the cross beam to have a tendency of rotating towards the direction away from each other.
Through adopting above-mentioned technical scheme, the cover is equipped with torsion spring in the pivot, and torsion spring will fix the steel sheet and open to the outside greatly, and the fixed steel sheet produces pressure to the soil horizon of foundation pit both sides when guaranteeing the jack to rise, is convenient for fix the steel sheet and insert the soil horizon of foundation pit both sides smoothly.
The utility model discloses further set up to: and a jack supporting block is arranged at the lower part of the middle position of the cross beam, and the jack is in contact with the jack supporting block.
Through adopting above-mentioned technical scheme, crossbeam intermediate position department lower part is provided with the jack supporting block, the jack with the contact of jack supporting block disperses jack to the pressure of crossbeam through the jack supporting block, prevents that the crossbeam atress is inhomogeneous and damage.
The utility model discloses further set up to: the jack supporting block is of a hollow triangular prism structure, the cross section of the jack supporting block is of an isosceles obtuse triangle with a downward vertex angle, the jack supporting block further comprises a jacking block, the jacking block is fixed on the outer side of the isosceles obtuse triangle of the jack supporting block, and the center of gravity of the jack supporting block is located on the central axis of the jacking block.
Through adopting above-mentioned technical scheme, set jack supporting block to hollow triangular prism structure, the kicking block is fixed in jack supporting block isosceles obtuse triangle's obtuse angle outside, and jack supporting block focus is located the kicking block central axis, makes jack more even and dispersion to the power of jack supporting block, makes jack supporting block be in balanced state, also makes jack supporting block structure more firm.
The utility model discloses further set up to: and triangular convex blocks with inclined planes facing the rotating shaft are respectively arranged between the rotating shaft and the end head of the cross beam at the two ends of the cross beam.
Through adopting above-mentioned technical scheme, crossbeam both ends head is located and is equipped with the triangle lug of inclined plane orientation pivot respectively between pivot and the crossbeam end, and the triangle lug can avoid fixed steel sheet to be perpendicular with ground pit both sides soil layer pressure direction, helps disperseing the pressure of ground layer to fixed steel sheet on ground pit both sides.
The utility model discloses further set up to: and the end part of the fixed steel plate is provided with a cutting edge.
Through adopting above-mentioned technical scheme, the tip of fixed steel sheet is provided with the sword angle, and the sword angle can promote fixed steel sheet to inject the soil horizon of foundation pit both sides fast.
The utility model discloses further set up to: the hydraulic jack is characterized by further comprising a pressure gauge and a manual oil pump, wherein the pressure gauge is arranged on the manual oil pump, and the manual oil pump is connected with the jack through a high-pressure oil pipe.
Through adopting above-mentioned technical scheme, the manometer setting can follow the manometer and learn manual oil pump pressure on manual oil pump, manual oil pump pass through high pressure fuel pipe with the jack is connected, makes the jack rise through oil pump pressurization.
the utility model discloses further set up to: the jack is provided with a bearing plate at the contact position with the foundation, the two sides of the beam adjacent to the triangular lug are fixed with a dial indicator, and a measuring rod of the dial indicator vertically falls on the bearing plate.
Through adopting above-mentioned technical scheme, jack and ground contact position are equipped with the bearing plate, and the bearing plate makes jack pressure balance to the ground, and the crossbeam is fixed with the percentage table with the adjacent both sides of triangle lug, and the measuring staff of percentage table falls perpendicularly on the bearing plate, measures the distance that the jack rose through the percentage table, and the result precision that the percentage table was measured is high.
To sum up, the utility model discloses following beneficial effect has:
1. The two ends of one side, away from the jack, of the cross beam are respectively connected with the fixed steel plates through the rotating shafts, the flat plate load test device is placed in the foundation pit, the jack is lifted, the fixed steel plates can be inserted into soil strata on two sides of the foundation pit under the action of the jack, the fixed steel plates are prevented from being inserted into the soil strata manually, and the problems that the fixed steel plates are difficult to insert into the soil strata manually, and time and labor are wasted are solved;
2. The utility model discloses regard as the counter-force with around "soil is heavy" for the loaded down with trivial details load test device of conventionality becomes succinct high-efficient, has both improved test efficiency, has reduced experimental expense again.
Drawings
Fig. 1 is the utility model provides a pair of simple and easy dull and stereotyped load test device spatial structure sketch map based on soil reaction.
Fig. 2 is the utility model provides a pair of simple and easy dull and stereotyped load test device explosion sketch map based on soil reaction.
In the figure: 1. a cross beam; 2. a jack; 3. fixing a steel plate; 31. a blade angle; 4. a rotating shaft; 5. a torsion spring; 6. a triangular bump; 7. a jack support block; 71. a top block; 8. a pressure gauge; 9. a manual oil pump; 10. a high pressure oil pipe; 11. a dial indicator; 12. a measuring rod; 13. a bearing plate.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples:
As shown in figure 1, a simple flat plate load test device based on soil reaction force comprises a cross beam 1 and a jack 2 which is positioned on one side of the cross beam 1 and is perpendicular to the cross beam 1, wherein two ends of the surface of one side, which is deviated from the jack 2, of the cross beam 1 are respectively connected with a fixed steel plate 3 through a rotating shaft 4. The rotating shaft 4 is sleeved with a torsion spring 5, the torsion spring 5 enables the fixed steel plates 3 at two ends of the surface of the beam 1 to have a tendency of rotating towards directions far away from each other, the torsion spring 5 expands the fixed steel plates 3 towards the outside, and the fixed steel plates 3 generate pressure to soil layers on two sides of the foundation pit when the jack 2 is ensured to rise, so that the fixed steel plates 3 can be conveniently and smoothly inserted into the soil layers on two sides of the foundation pit.
As shown in FIG. 2, a jack support block 7 is arranged at the lower part of the middle position of the crossbeam 1, the jack 2 is in contact with the jack support block 7, and the pressure of the jack 2 on the crossbeam 1 is dispersed through the jack support block 7, so that the damage of the crossbeam 1 due to uneven stress is prevented. Jack supporting block 7 is hollow triangular prism structure, and its cross section is the downward isosceles obtuse triangle of apex angle, and jack supporting block 7 still includes kicking block 71, and kicking block 71 is fixed in jack supporting block 7 isosceles obtuse triangle's obtuse angle outside, and jack supporting block 7 focus is located kicking block 71 central axis, and jack 2 is more even and the dispersion to jack supporting block 7's power, makes jack supporting block 7 be in balanced state, also makes jack supporting block 7 structure more firm. The triangular convex blocks 6 with the inclined planes facing the rotating shaft 4 are respectively arranged between the rotating shaft 4 and the end of the beam 1 at the two ends of the beam 1, the triangular convex blocks 6 can prevent the fixed steel plate 3 from being perpendicular to the land layer at the two sides of the foundation pit in the pressure direction, and the pressure of the land layer at the two sides of the foundation pit on the fixed steel plate 3 can be dispersed. The end of the fixed steel plate 3 is provided with an edge angle 31, and the edge angle 31 can promote the fixed steel plate 3 to be rapidly inserted into soil layers on two sides of the foundation pit. Still include manometer 8 and manual oil pump 9, manometer 8 sets up on manual oil pump 9, and manual oil pump 9 is connected with jack 2 through high pressure fuel pipe 10, and pressurization makes jack 2 rise through manual oil pump 9.
The contact position of the jack 2 and the foundation is provided with a bearing plate 13, the two sides of the beam 1 adjacent to the triangular lug 6 are fixed with a dial indicator 11, a measuring rod 12 of the dial indicator 11 vertically falls on the bearing plate 13, the rising distance of the jack 2 is measured through the dial indicator 11, and the measuring result precision of the dial indicator 11 is high.
Through the both ends that deviate from 2 one sides of jack at crossbeam 1 respectively through pivot 4 connection fixed steel sheet 3, place dull and stereotyped load test device in the ground hole, raise jack 2, during fixed steel sheet 3 can insert the ground hole both sides soil layer under the effect of jack 2, avoid needing the manpower to insert fixed steel sheet 3 in the soil layer, solved manual with fixed steel sheet 3 insert the soil layer degree of difficulty big and waste time and energy the problem.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a simple and easy dull and stereotyped load test device based on soil reaction, includes crossbeam (1) and is located crossbeam (1) one side and crossbeam (1) vertically jack (2), its characterized in that: the cross beam (1) deviates from the inclined two ends of the surface of one side of the jack (2) and is connected with a fixed steel plate (3) through a rotating shaft (4) respectively.
2. The simple flat plate load test device based on soil reaction force of claim 1, wherein: the rotating shaft (4) is sleeved with a torsion spring (5), and the torsion spring (5) enables the fixed steel plates (3) at two ends of the surface of the cross beam (1) to have a tendency of rotating towards the direction away from each other.
3. the simple flat plate load test device based on soil reaction force of claim 1, wherein: the lower part of the middle position of the cross beam (1) is provided with a jack supporting block (7), and the jack (2) is in contact with the jack supporting block (7).
4. The simple flat plate load test device based on soil reaction force of claim 3, wherein: jack supporting block (7) are hollow triangular prism structure, and its cross section is the downward isosceles obtuse triangle of apex angle, jack supporting block (7) still include kicking block (71), and kicking block (71) are fixed in jack supporting block (7) isosceles obtuse triangle's the obtuse angle outside, and jack supporting block (7) focus is located kicking block (71) central axis.
5. The simple flat plate load test device based on soil reaction force of claim 1, wherein: the two ends of the cross beam (1) are positioned between the rotating shaft (4) and the end of the cross beam (1) and are respectively provided with a triangular lug (6) with an inclined plane facing the rotating shaft (4).
6. The simple flat plate load test device based on soil reaction force of claim 1, wherein: and an edge angle (31) is arranged on the end face of one side of the fixed steel plate (3) opposite to the rotating shaft (4).
7. the simple flat plate load test device based on soil reaction force of claim 1, wherein: still include manometer (8) and manual oil pump (9), manometer (8) set up on the manual oil pump (9), manual oil pump (9) through high pressure fuel pipe (10) with jack (2) are connected.
8. The simple flat plate load test device based on soil reaction force of claim 6, wherein: jack (2) and ground contact position are equipped with bearing plate (13), crossbeam (1) and the adjacent both sides of triangle lug (6) are fixed with percentage table (11), measuring staff (12) of percentage table (11) fall perpendicularly on bearing plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920271867.9U CN209779717U (en) | 2019-03-04 | 2019-03-04 | Simple flat plate load test device based on soil counter-force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920271867.9U CN209779717U (en) | 2019-03-04 | 2019-03-04 | Simple flat plate load test device based on soil counter-force |
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| Publication Number | Publication Date |
|---|---|
| CN209779717U true CN209779717U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920271867.9U Expired - Fee Related CN209779717U (en) | 2019-03-04 | 2019-03-04 | Simple flat plate load test device based on soil counter-force |
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| CN (1) | CN209779717U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789772A (en) * | 2021-08-30 | 2021-12-14 | 中国建筑第五工程局有限公司 | Narrow groove shallow layer flat plate load test method |
| CN113818421A (en) * | 2021-09-29 | 2021-12-21 | 国网新源控股有限公司 | Connecting device between girder and jack in flat plate load test |
-
2019
- 2019-03-04 CN CN201920271867.9U patent/CN209779717U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113789772A (en) * | 2021-08-30 | 2021-12-14 | 中国建筑第五工程局有限公司 | Narrow groove shallow layer flat plate load test method |
| CN113818421A (en) * | 2021-09-29 | 2021-12-21 | 国网新源控股有限公司 | Connecting device between girder and jack in flat plate load test |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |