CN219224346U - Existing geogrid on-site drawing detection device - Google Patents
Existing geogrid on-site drawing detection device Download PDFInfo
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- CN219224346U CN219224346U CN202222750616.3U CN202222750616U CN219224346U CN 219224346 U CN219224346 U CN 219224346U CN 202222750616 U CN202222750616 U CN 202222750616U CN 219224346 U CN219224346 U CN 219224346U
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Abstract
The utility model provides an existing geogrid on-site drawing detection device which comprises stressed steel bars, wherein the stressed steel bars are arranged on a through jack in a penetrating manner and are locked at the upper end of the through jack through tool anchors; the center-penetrating jack is arranged on the supporting stool, and a through hole is formed in the middle of the supporting stool; the stress steel bar at the lower end of the through jack passes through the supporting stool, and the lower end of the stress steel bar is connected with a clamp; a filler layer is arranged above the retaining wall block member, the lower end of the geogrid is buried in the retaining wall block member and the filler layer, and the upper end of the geogrid extends out of the filler layer; the supporting stool is arranged above the packing layer, the geogrid is clamped by the clamp, and the displacement meter is connected with the clamp through the displacement leading-out rod. The utility model can carry out on-site drawing on the constructed existing geogrid to obtain accurate pulling resistance and deformation data, and has the characteristics of convenient operation, safe and reliable structure and accurate detection result.
Description
[ field of technology ]
The utility model relates to an on-site drawing detection device for an existing geogrid.
[ background Art ]
Geogrid is a main geosynthetic material, and is commonly used as a reinforcement material of a reinforced soil mechanism or a reinforcement material of a composite material, and the geogrid has been widely used in terms of the advantages of convenience, stability, economy, good adaptability, convenience in construction, attractive appearance and the like. The soil reinforcement mechanism of the geogrid exists in the interaction of the geogrid and the soil: the friction effect of the surface of the grating and the soil, the locking effect of the grating holes on the soil and the passive impedance effect of the soil on the grating ribs can fully restrict the lateral displacement of the soil particles, so that the self-standing stability of the soil body is greatly improved. In practical engineering, the reinforced retaining wall is often used as an important component of the reinforced retaining wall: including the laying of geogrids, the connection of geogrids to face-piece members.
The on-site drawing test is carried out on the geogrid, and whether the actual action characteristics of the geogrid and different filler interfaces and the coupling process effect of the geogrid and the blocking wall blocks meet the safety requirements can be tested. At present, the detection of the geogrid is basically based on indoor material detection, the working mechanism of the existing geogrid on site cannot be objectively reflected, and hidden safety hazards of design and use are buried. In addition, when the safety of the existing building side slope retaining wall is identified, the existing geogrid is often required to be subjected to field drawing detection, so that a detection method is needed to solve the problem.
In many cases, the carrying capacity of the geogrid on a site part or at some specific positions is required to be detected, but at present, the engineering cannot identify or detect the pulling-resistant carrying capacity of the existing geogrid after construction, and the engineering cannot reflect the actual working state of the geogrid on site and cannot achieve the purpose of spot check detection only by being limited to indoor material carrying capacity detection.
[ utility model ]
The utility model aims to solve the technical problem of providing the on-site drawing detection device for the existing geogrid, which can carry out on-site drawing on the constructed existing geogrid to obtain accurate pulling resistance and deformation data and has the characteristics of convenient operation, safe and reliable structure and accurate detection result.
The utility model is realized in the following way:
an existing geogrid on-site drawing detection device comprises a stress steel bar, a tool anchor, a penetrating jack, a displacement meter, a displacement leading-out rod, a supporting stool, a clamp, a geogrid, a filler layer and a retaining wall surface block component,
the stress steel bar is arranged on the through jack in a penetrating way, and the upper end of the stress steel bar is locked at the upper end of the through jack through the tool anchor; the center-through jack is arranged on the supporting stool, and a through hole is formed in the middle of the supporting stool; the stressed steel bar at the lower end of the through jack passes through the supporting stool, and the lower end of the stressed steel bar is connected with a clamp;
a filler layer is arranged above the retaining wall surface block member, the lower end of the geogrid is buried in the retaining wall surface block member and the filler layer, and the upper end of the geogrid extends out of the filler layer;
the supporting stool is arranged above the packing layer, the clamp clamps the geogrid, and the displacement meter is connected with the clamp through the displacement leading-out rod;
the clamp comprises a first fixed clamping plate, a second fixed clamping plate, a locking clamping plate, a connecting bolt and a locking bolt, wherein the upper end of the first fixed clamping plate is provided with a threaded connecting part, and the lower end of the stressed steel bar is in threaded connection with the threaded connecting part; the first fixing clamp plate and the second fixing clamp plate are oppositely arranged, and the opposite clamping surfaces of the first fixing clamp plate and the second fixing clamp plate are respectively provided with mutually corresponding engaging teeth which are used for clamping and engaging the geogrid; the locking clamp plate is arranged behind the second fixed clamp plate, the first fixed clamp plate, the second fixed clamp plate and the locking clamp plate are sequentially connected through the connecting bolts in a penetrating mode, the locking clamp plate is further threaded with the locking bolts in a penetrating mode, and the front ends of the locking bolts are propped against the second fixed clamp plate.
Further, a backing plate is also arranged between the tool anchor and the through jack.
Further, the supporting stool comprises a supporting top plate, threaded supporting columns, anchors and a supporting bottom plate, wherein the upper ends of the threaded supporting columns penetrate through the supporting top plate and are fixed on the supporting top plate through the anchors, and the lower ends of the threaded supporting columns are vertically connected with the supporting bottom plate; the supporting bottom plate is arranged above the packing layer, and the upper end of the geogrid penetrates out from a hole formed in the supporting bottom plate.
Further, the displacement leading-out rod is connected with a cohesive hoop, the cohesive hoop comprises two cohesive units, the cohesive units are connected through bolts, and the cohesive hoop is arranged outside the threaded connection part.
Further, each connecting bolt is sleeved with a stress spring, and two ends of the stress spring are respectively propped against the locking clamping plate and the second fixing clamping plate.
The utility model has the following advantages:
(1) The pull-out test can be carried out on the existing geogrid on site, and the problem that the in-situ pull-out test cannot be carried out is solved; (2) Spot check detection can be performed on the geogrid at a specific position; (3) The drawing test mode is consistent with the stress mode of the actual working state of the geogrid, so that accurate drawing resistance and deformation data can be obtained.
In a word, the drawing detection device solves the problem that the existing geogrid is difficult to detect on site, has the characteristics of convenient operation, high structural design stability, safety, reliability and accurate detection result, and is easy to popularize and use.
[ description of the drawings ]
The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an existing geogrid on-site drawing detection device.
Fig. 2 is a partial enlarged view of a in fig. 1.
Fig. 3 is a diagram showing the disassembly of a clamp of an existing geogrid on-site drawing detection device.
Fig. 4 is a block diagram of a band clamp of an existing geogrid on-site drawing detection device.
The reference numerals are as follows:
the device comprises a stress steel bar 1, a tool anchor 2, a penetrating jack 3, a displacement meter 4, a displacement leading-out rod 5, a supporting stool 6, a supporting top plate 61, a threaded supporting column 62, an anchor 63, a supporting bottom plate 64, a clamp 7, a first fixed clamping plate 71, a second fixed clamping plate 72, a locking clamping plate 73, a connecting bolt 74, a locking bolt 75, a threaded connecting part 76, a meshing tooth 77, a stress spring 78, a geogrid 8, a packing layer 9, a retaining wall surface block component 10, a backing plate 11, a surrounding hoop 12 and a surrounding unit 121.
[ detailed description ] of the utility model
The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings and detailed description. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-4, the utility model relates to an existing geogrid on-site drawing detection device, which comprises a stress steel bar 1, a tool anchor 2, a penetrating jack 3, a displacement meter 4, a displacement leading-out rod 5, a supporting stool 6, a clamp 7, a geogrid 8, a filler layer 9 and a retaining wall surface block component 10,
the stress steel bar 1 is arranged on the through jack 3 in a penetrating way, and the upper end of the stress steel bar 1 is locked at the upper end of the through jack 3 through the tool anchor 2; the center-through jack 3 is arranged on the supporting stool 6, and a through hole is formed in the middle of the supporting stool 6; the stressed steel bar 1 positioned at the lower end of the through jack 3 passes through the supporting stool 6, and the lower end of the stressed steel bar 1 is connected with a clamp 7;
a filler layer 9 is arranged above the retaining wall block member 10, the lower end of the geogrid 8 is buried in the retaining wall block member 10 and the filler layer 9, and the upper end of the geogrid 8 extends out of the filler layer 9;
the supporting stool 6 is arranged above the packing layer 9, the clamp 7 clamps the geogrid 8, and the displacement meter 4 is connected with the clamp 7 through the displacement leading-out rod 5;
the clamp 7 comprises a first fixed clamping plate 71, a second fixed clamping plate 72, a locking clamping plate 73, a connecting bolt 74 and a locking bolt 75, wherein a threaded connecting part 76 is arranged at the upper end of the first fixed clamping plate 71, and the lower end of the stressed steel bar 1 is in threaded connection with the threaded connecting part 76; the first fixing clamping plate 71 and the second fixing clamping plate 72 are oppositely arranged, and the opposite clamping surfaces of the first fixing clamping plate 71 and the second fixing clamping plate 72 are respectively provided with mutually corresponding engaging teeth 77, and the engaging teeth 77 are used for clamping and engaging and fastening the geogrid 8; the locking clamp plate 73 is arranged behind the second fixing clamp plate 72, the first fixing clamp plate 71, the second fixing clamp plate 72 and the locking clamp plate 73 are sequentially connected through the connecting bolts 74 in a penetrating mode, the locking clamp plate 73 is further provided with the locking bolts 75 in a penetrating mode in a threaded mode, and the front ends of the locking bolts 75 are abutted to the second fixing clamp plate 72.
In a preferred embodiment, the method comprises: a backing plate 11 is also arranged between the tool anchor 2 and the through jack 3.
In a preferred embodiment, the method comprises: the supporting stool 6 comprises a supporting top plate 61, threaded supporting columns 62, anchors 63 and a supporting bottom plate 64, wherein the upper ends of the threaded supporting columns 62 are penetrated through the supporting top plate 61 and fixed on the supporting top plate 61 through the anchors 63, and the lower ends of the threaded supporting columns 62 are vertically connected with the supporting bottom plate 64; the supporting bottom plate 64 is arranged above the filler layer 9, and the upper end of the geogrid 8 penetrates out of a hole formed in the supporting bottom plate 64.
In a preferred embodiment, the method comprises: the displacement leading-out rod 5 is connected with a binding hoop 12, the binding hoop 12 comprises two binding units 121, the two binding units 121 are connected through bolts, and the binding hoop 12 is arranged outside the threaded connection part 76.
In a preferred embodiment, the method comprises: a force spring 78 is sleeved on each connecting bolt 74, and two ends of the force spring 78 are respectively propped against the locking clamping plate 73 and the second fixing clamping plate 72.
In an embodiment of the utility model, the functions of the components are as follows:
1. stress steel bar 1: the stressed steel bar 1 penetrates through the center penetrating jack 3 and is used for bearing the tensile force of the center penetrating jack 3;
2. tool anchor 2: the device is used for locking the stressed steel bar 1 above the penetrating jack 3 so that the stressed steel bar 1 bears the tensile force;
3. backing plate 11: the stress of the tool anchor 2 and the stress steel bar 1 is dispersed so as to avoid damaging the penetrating jack 3;
4. penetrating jack 3: providing a test pull force;
5. displacement meter 4: for measuring deformation of the geogrid 8 under a certain level of tension;
6. displacement extraction lever 5: the extraction displacement of the geogrid 8 is led out to the outside so as to facilitate accurate measurement;
7. support stool 6: the supporting top plate 61 and the supporting bottom plate 64 are connected through the threaded supporting columns 62 and the anchors 63, the supporting stool 6 can adjust the height by adjusting the relative positions of the threaded supporting columns 62 and the supporting top plate 61, so that the supporting stool is suitable for the geogrid 8 drawing test under different working conditions, and a counterforce force point is provided for the test;
8. clamp 7: two connecting bolts 74 respectively penetrate through the locking clamping plate 73, the stress spring 78, the second fixing clamping plate 72 and the first fixing clamping plate 71, are fixed by screwing nuts, and are connected into a whole; the exposed geogrid 8 passes through the first fixing clamp plate 71 and the second fixing clamp plate 72, the connecting bolts 74 are screwed, so that the geogrid 8 is clamped and meshed and fastened by the first fixing clamp plate 71 and the second fixing clamp plate 72 through the meshing teeth 77, and then three locking bolts 75 are rotated forwards, the front ends of the locking bolts 75 are abutted against the second fixing clamp plate 72, and the locking force is increased; finally, the threaded connection part 76 of the clamp 7 is connected with the lower end of the stressed steel bar 1, and the geogrid 8 which cannot be directly connected and pulled out originally is skillfully converted to the stressed steel bar 1;
9. geogrid 8: the object of the geogrid 8 pull-out test is commonly used as a reinforcement material of a reinforced soil structure;
10. packing layer 9: a filler part embedded in the geogrid 8;
11. wall block member 10: the geogrid 8 embeds retaining wall face block members 10.
In another embodiment of the present utility model, the installation process of the pull-out detecting device is as follows:
firstly, the exposed part of the geogrid 8 embedded in the filler layer 9 and the retaining wall face block member 10 is penetrated through the hole of the supporting bottom plate 61 and clamped and locked by the clamp 7; then, the lower end of the stressed steel bar 1 passes through the supporting top plate 61 to be connected with the clamp 7, and simultaneously, the supporting stool 6 is adjusted to be suitable for the height of the test through the anchor 63 and the threaded supporting column 62; sequentially penetrating the center-penetrating jack 3 and the cushion block 11 through the upper end of the stressed steel bar 1, and locking by using the tool anchor 2; finally, the displacement extraction rod 5 is fixed to the threaded connection portion 76 at the upper portion of the jig 7 through the anchor ear 12, and the displacement of the geogrid 8 extracted is measured by the displacement meter 4.
And installing the drawing detection device according to the connection mode, starting the jack in stages according to the test procedure, drawing, and recording the load value and the drawn displacement.
The utility model has the following advantages:
(1) The pull-out test can be carried out on the existing geogrid on site, and the problem that the in-situ pull-out test cannot be carried out is solved; (2) Spot check detection can be performed on the geogrid at a specific position; (3) The drawing test mode is consistent with the stress mode of the actual working state of the geogrid, so that accurate drawing resistance and deformation data can be obtained.
In a word, the drawing detection device solves the problem that the existing geogrid is difficult to detect on site, has the characteristics of convenient operation, high structural design stability, safety, reliability and accurate detection result, and is easy to popularize and use.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.
Claims (5)
1. Existing geogrid on-site drawing detection device, its characterized in that: the drawing detection device comprises a stress steel bar, a tool anchor, a punching jack, a displacement meter, a displacement leading-out rod, a supporting stool, a clamp, a geogrid, a filler layer and a retaining wall surface block component,
the stress steel bar is arranged on the through jack in a penetrating way, and the upper end of the stress steel bar is locked at the upper end of the through jack through the tool anchor; the center-through jack is arranged on the supporting stool, and a through hole is formed in the middle of the supporting stool; the stressed steel bar at the lower end of the through jack passes through the supporting stool, and the lower end of the stressed steel bar is connected with a clamp;
a filler layer is arranged above the retaining wall surface block member, the lower end of the geogrid is buried in the retaining wall surface block member and the filler layer, and the upper end of the geogrid extends out of the filler layer;
the supporting stool is arranged above the packing layer, the clamp clamps the geogrid, and the displacement meter is connected with the clamp through the displacement leading-out rod;
the clamp comprises a first fixed clamping plate, a second fixed clamping plate, a locking clamping plate, a connecting bolt and a locking bolt, wherein the upper end of the first fixed clamping plate is provided with a threaded connecting part, and the lower end of the stressed steel bar is in threaded connection with the threaded connecting part; the first fixing clamp plate and the second fixing clamp plate are oppositely arranged, and the opposite clamping surfaces of the first fixing clamp plate and the second fixing clamp plate are respectively provided with mutually corresponding engaging teeth which are used for clamping and engaging the geogrid; the locking clamp plate is arranged behind the second fixed clamp plate, the first fixed clamp plate, the second fixed clamp plate and the locking clamp plate are sequentially connected through the connecting bolts in a penetrating mode, the locking clamp plate is further threaded with the locking bolts in a penetrating mode, and the front ends of the locking bolts are propped against the second fixed clamp plate.
2. The existing geogrid field drawing detection device according to claim 1, wherein: a backing plate is also arranged between the tool anchor and the through jack.
3. The existing geogrid field drawing detection device according to claim 1, wherein: the support stool comprises a support top plate, threaded support columns, anchors and a support bottom plate, wherein the upper ends of the threaded support columns penetrate through the support top plate and are fixed on the support top plate through the anchors, and the lower ends of the threaded support columns are vertically connected with the support bottom plate; the supporting bottom plate is arranged above the packing layer, and the upper end of the geogrid penetrates out from a hole formed in the supporting bottom plate.
4. The existing geogrid field drawing detection device according to claim 1, wherein: the displacement leading-out rod is connected with a cohesive hoop, the cohesive hoop comprises two cohesive units, the cohesive units are connected through bolts, and the cohesive hoop is arranged on the outer side of the threaded connection part.
5. The existing geogrid field drawing detection device according to claim 1, wherein: and stress springs are sleeved on the connecting bolts, and two ends of each stress spring are respectively propped against the locking clamping plate and the second fixing clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222750616.3U CN219224346U (en) | 2022-10-19 | 2022-10-19 | Existing geogrid on-site drawing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222750616.3U CN219224346U (en) | 2022-10-19 | 2022-10-19 | Existing geogrid on-site drawing detection device |
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| Publication Number | Publication Date |
|---|---|
| CN219224346U true CN219224346U (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222750616.3U Active CN219224346U (en) | 2022-10-19 | 2022-10-19 | Existing geogrid on-site drawing detection device |
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|---|---|
| CN (1) | CN219224346U (en) |
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- 2022-10-19 CN CN202222750616.3U patent/CN219224346U/en active Active
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