CN212779687U - Horizontal supporting device for foundation pit model - Google Patents
Horizontal supporting device for foundation pit model Download PDFInfo
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- CN212779687U CN212779687U CN202022297208.8U CN202022297208U CN212779687U CN 212779687 U CN212779687 U CN 212779687U CN 202022297208 U CN202022297208 U CN 202022297208U CN 212779687 U CN212779687 U CN 212779687U
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- retaining wall
- bracing piece
- foundation pit
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Abstract
The utility model discloses a horizontal strutting arrangement of foundation ditch model relates to the experimental technical field of ground. The horizontal strutting arrangement of foundation ditch model includes: soil body, retaining wall, bracing piece, foil gage and data acquisition appearance, two the retaining wall interval sets up in the soil body, the bracing piece both ends respectively with two the retaining wall is connected, the foil gage sets up on the bracing piece, the data acquisition appearance with the foil gage is connected. The utility model discloses a retaining wall that two intervals set up is connected to the bracing piece, and the bracing piece can bear pressure and pulling force, avoids the bracing piece to drop when the pulling force and then influences the monitoring of support shaft power among the model test.
Description
Technical Field
The utility model relates to a ground test technical field specifically is to relate to a horizontal strutting arrangement of foundation ditch model.
Background
In recent years, with the mass construction of urban rail transit and high-rise buildings, the conditions of foundation pits are more and more complicated, and the difficulty of supporting is more and more increased. Meanwhile, the foundation pit engineering is often located in the city, and the construction land is limited. The supporting type retaining structure has the advantages that space resources outside the foundation pit do not need to be occupied, the deformation of the enclosure structure can be effectively controlled, and the like, and the supporting type retaining structure is widely applied to deep foundation pit engineering.
The establishment of a model experiment to study engineering practical problems has become one of the important research means. At present, a horizontal supporting device for a foundation pit model experiment is mainly made of steel bars, steel pipes and plastic pipes and supported between retaining walls, the connection cannot be guaranteed to be tight when the horizontal supporting device is installed, the supporting device can only simply play a role of supporting, meanwhile, the supporting device can only be pressed, and the horizontal supporting device can fall off due to the fact that the horizontal supporting device cannot be pulled under special conditions, so that the monitoring of supporting shaft force in a model experiment is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a horizontal strutting arrangement of foundation ditch model avoids strutting arrangement to drop and then influences the monitoring of support shaft power among the model test when pulling the power.
In order to achieve the above object, the utility model provides a horizontal strutting arrangement of foundation ditch model, include: soil body, retaining wall, bracing piece, foil gage and data acquisition appearance, two the retaining wall interval sets up in the soil body, the bracing piece both ends respectively with two the retaining wall is connected, the foil gage sets up on the bracing piece, the data acquisition appearance with the foil gage is connected.
Optionally, the strain gauge is connected with the support rod in an adhesive manner.
Optionally, the supporting rod is detachably connected with the retaining wall.
Optionally, the horizontal strutting arrangement of foundation ditch model still includes the threaded sleeve pipe, threaded sleeve connects two the bracing piece, the bracing piece is kept away from threaded sleeve pipe one end with the connection can be dismantled to the retaining wall.
Optionally, the two ends of the supporting rod are provided with threaded heads, a threaded hole is formed in the retaining wall, one end of the supporting rod is connected with the retaining wall through the threaded heads, and the other end of the supporting rod is connected with the threaded sleeve through the threaded heads.
Optionally, a plurality of threaded holes are formed in the retaining wall, and the retaining wall is connected with the retaining wall through a plurality of supporting rods.
Optionally, the bracing piece is hollow body, the foil gage sets up on the inside wall of bracing piece.
The utility model provides a horizontal strutting arrangement of foundation ditch model, include: soil body, retaining wall, bracing piece, foil gage and data acquisition appearance, two the retaining wall interval sets up in the soil body, the bracing piece both ends respectively with two the retaining wall is connected, the foil gage sets up on the bracing piece, the data acquisition appearance with the foil gage is connected. Adopt the bracing piece to connect the retaining wall that two intervals set up, the bracing piece can bear pressure and pulling force, avoids the bracing piece to drop when the pulling force and then influences the monitoring of support shaft power in the model test.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
Fig. 1 is a schematic view of a horizontal supporting device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the connection of the support pole and the retaining wall of FIG. 1;
FIG. 3 is a schematic view of the connection of the support rod and the threaded bushing of FIG. 1;
fig. 4 is a schematic view of the support rod and the threaded sleeve locked by the nut.
Wherein: the method comprises the following steps of 1-soil body, 2-retaining wall, 201-threaded hole, 3-supporting rod, 301-threaded head, 4-threaded sleeve, 5-strain gauge, 6-data acquisition instrument and 7-nut.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Fig. 1 is a schematic view of a horizontal supporting device according to an embodiment of the present invention, fig. 2 is a schematic view of a connection between a supporting rod and a retaining wall in fig. 1, and fig. 3 is a schematic view of a connection between a supporting rod and a threaded sleeve in fig. 1, and referring to fig. 1 to 3, the horizontal supporting device for a foundation pit model includes: soil body 1, retaining wall 2, bracing piece 3, foil gage 5 and data acquisition appearance 6, two 2 intervals of retaining wall set up in the soil body 1, 3 both ends of bracing piece respectively with two retaining wall 2 is connected, foil gage 5 sets up on the outer wall of bracing piece 3, data acquisition appearance 6 with foil gage 5 is connected. The support rods 3 and the retaining wall 2 may be connected in various ways, such as welding, bonding, etc. Before the experiment, whether the connection of the strain gauge 5 is correct or not should be checked in advance. Along with the experiment, the bracing piece 3 takes place to warp, and the axial strain of bracing piece 3 can be surveyed to foil gage 5, and signal transmission obtains the axial force of support to data acquisition instrument 6, the stress-strain relation of rethread material.
Referring to fig. 1 to 3, the strain gauge 5 is adhesively connected to the support rod 3. The supporting rods 3 and the retaining wall 2 can cause the strain gauge 5 to generate initial strain when being installed, so that the data of the corresponding strain gauge 5 is cleared before the soil body 1 is excavated at each step.
Referring to fig. 1 to 3, the supporting rod 3 is detachably coupled to the retaining wall 2. In order to improve the measurement accuracy, it should be ensured that the support rod 3 is tightly connected to the retaining wall 2. The horizontal strutting arrangement of foundation ditch model still includes threaded sleeve 4, threaded sleeve 4 connects two bracing piece 3 can conveniently adjust 3 ends of bracing piece to threaded sleeve 4 length in order to guarantee to be connected closely with retaining wall 2 during the installation, bracing piece 3 keeps away from threaded sleeve 4 one end with retaining wall 2 can dismantle the connection. Specifically, 3 both ends of bracing piece are provided with screw thread head 301, be provided with screw hole 201 on retaining wall 2, screw hole 201 suits with screw thread head 301, 3 one ends of bracing piece are passed through screw thread head 301 with retaining wall 2 is connected, the 3 other ends of bracing piece pass through screw thread head 301 with threaded sleeve 4 is connected.
Fig. 4 is a schematic view showing that the support rod and the threaded sleeve are locked by nuts, and referring to fig. 1 to 4, in order to improve the measurement accuracy, the support rod 3 should be securely connected to the retaining wall 2, so that the nut 7 may be provided on the threaded head 301, and after the support rod 3 is screwed into and tightly connected to the retaining wall 2, the nut 7 and the threaded sleeve 4 are tightened to prevent the support rod 3 and the threaded sleeve 4 from being loosened. When the supporting rod 3 and the threaded sleeve 4 are installed, firstly, the nut 7 is screwed on the threaded head 301 to enable the nut 7 to be close to the supporting rod 3, then the two supporting rods 3 are connected onto the threaded sleeve 4, the nut 7 is tightly attached to the end face of the threaded sleeve 4, the total length of the two supporting rods 3, the nut 7 and the threaded sleeve 4 is smaller than the distance between the two retaining walls 2, so that the two retaining walls 2 can be smoothly placed between the two retaining walls 2, then the threaded head 301, far away from one end of the threaded sleeve 4, of the supporting rod 3 is screwed into the retaining wall 2, the supporting rod 3 is perpendicular to the retaining wall 2, after one end, far away from the threaded sleeve 4, of the supporting rod 3 is screwed into the retaining wall 2, the nut 7, close to one end of the threaded sleeve 4, of the supporting rod 3 has a certain distance from the threaded.
Referring to fig. 1 to 3, a plurality of threaded holes 201 are formed in the retaining wall 2, and two retaining walls 2 are connected by a plurality of support rods 3. The bracing piece 3 can set up to hollow body, foil gage 5 still can set up on the inside wall of bracing piece 3, the connecting wire of foil gage 5 passes the pipe wall of bracing piece 3 and is connected with data acquisition instrument 6. The strain gauge 5 is bonded on the inner wall of the support rod 3, so that the strain gauge 5 can be prevented from loosening and falling off, and the measurement precision is improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. The utility model provides a horizontal strutting arrangement of foundation ditch model which characterized in that includes: soil body, retaining wall, bracing piece, foil gage and data acquisition appearance, two the retaining wall interval sets up in the soil body, the bracing piece both ends respectively with two the retaining wall is connected, the foil gage sets up on the bracing piece, the data acquisition appearance with the foil gage is connected.
2. The foundation pit model horizontal supporting device of claim 1, wherein the strain gauge is connected with the supporting rod in an adhesive manner.
3. The foundation pit model horizontal supporting device of claim 1, wherein the supporting rod is detachably connected with the retaining wall.
4. The foundation pit model horizontal supporting device of claim 3, further comprising a threaded sleeve, wherein the threaded sleeve is connected with two supporting rods, and one ends of the supporting rods, far away from the threaded sleeve, are detachably connected with the retaining wall.
5. The foundation pit model horizontal supporting device according to claim 4, wherein the two ends of the supporting rod are provided with threaded heads, the retaining wall is provided with a threaded hole, one end of the supporting rod is connected with the retaining wall through the threaded heads, and the other end of the supporting rod is connected with the threaded sleeve through the threaded heads.
6. The foundation pit model horizontal supporting device according to claim 5, wherein a plurality of threaded holes are formed in the retaining wall, and two retaining walls are connected through a plurality of supporting rods.
7. The foundation pit model horizontal supporting device of claim 5, wherein the supporting rod is a hollow pipe body, and the strain gauge is arranged on the inner side wall of the supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022297208.8U CN212779687U (en) | 2020-10-15 | 2020-10-15 | Horizontal supporting device for foundation pit model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022297208.8U CN212779687U (en) | 2020-10-15 | 2020-10-15 | Horizontal supporting device for foundation pit model |
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| Publication Number | Publication Date |
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| CN212779687U true CN212779687U (en) | 2021-03-23 |
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| CN202022297208.8U Active CN212779687U (en) | 2020-10-15 | 2020-10-15 | Horizontal supporting device for foundation pit model |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809122A (en) * | 2022-03-30 | 2022-07-29 | 中国建设基础设施有限公司 | Inner supporting device capable of accurately applying prestress in foundation pit model test |
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2020
- 2020-10-15 CN CN202022297208.8U patent/CN212779687U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809122A (en) * | 2022-03-30 | 2022-07-29 | 中国建设基础设施有限公司 | Inner supporting device capable of accurately applying prestress in foundation pit model test |
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