CN213328979U - Roadbed compaction method experimental device - Google Patents
Roadbed compaction method experimental device Download PDFInfo
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- CN213328979U CN213328979U CN202022101865.0U CN202022101865U CN213328979U CN 213328979 U CN213328979 U CN 213328979U CN 202022101865 U CN202022101865 U CN 202022101865U CN 213328979 U CN213328979 U CN 213328979U
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Abstract
The utility model discloses a roadbed compaction method experimental device, which comprises a base plate and a sand filling cylinder, wherein the sand filling cylinder is connected with the base plate through a support rod, a round hole is arranged in the center of the base plate, and the sand filling cylinder is arranged right above the round hole; the sand filling cylinder comprises a sand filling cylinder body and a sand leaking cylinder body arranged below the sand filling cylinder body, a piston plate and a piston plate used for controlling sand leaking quantity are arranged at the joint of the sand filling cylinder body and the sand leaking cylinder body, the bottom end of the sand leaking cylinder body extends downwards, and a through hole at the bottom of the sand leaking cylinder body is close to the center of the round hole. The quality is measured in advance by adding the sand amount in the sand filling cylinder, the sand quality is measured without using the sand filling cylinder for multiple times, the times for measuring the sand quality are greatly reduced, the sand filling amount in the pit hole under the substrate can be observed in real time, the sand filling amount is adjustable in real time, the labor intensity and difficulty of workers are reduced, and the measuring efficiency of the roadbed compactness is improved.
Description
Technical Field
The utility model relates to a road detection technology field, concretely relates to road bed compaction method experimental apparatus.
Background
The roadbed compactness is a quality control index of the soil filling engineering, is one of key indexes for roadbed and pavement construction quality detection, represents the density condition after on-site compaction, and has higher compactness and higher density, thus having better overall performance of the material.
At present, the main method for measuring the compactness of many engineering sites is a sand filling method which is a destructive detection method but is suitable for various soil qualities. The principle of the sand filling method is that clean and uniform sand is freely dropped into a test hole from a certain height, the volume of the test hole is measured according to the principle that the unit weight of the clean and uniform sand is unchanged, aggregate in the test hole is replaced by standard sand, the actually measured dry density of a sample is calculated by combining the water content of the aggregate, and finally roadbed compactness data are obtained.
Although the measured value is comparatively accurate, the main device that nevertheless the method of irritating sand needs to use is a sand filling section of thick bamboo, and current sand filling section of thick bamboo is when the survey, in order to survey the grit quality in the hole, the staff need measure the weight of the interior grit of a sand filling section of thick bamboo repeatedly, all will maintain a sand filling section of thick bamboo bottom through-hole and the round hole on the base plate just right after the measurement at every turn, and the operation is comparatively complicated, has increased staff's intensity of labour and the work degree of difficulty to the measurement efficiency of road bed compactness has been reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a road bed compaction method experimental apparatus to the operation is comparatively complicated when solving among the prior art sand filling method survey road bed compactness, the not high technical problem of efficiency.
In order to solve the above technical problem, the utility model particularly provides the following technical scheme:
a roadbed compaction method experimental device comprises a base plate and a sand filling cylinder, wherein the sand filling cylinder is connected with the base plate through a plurality of support rods, a round hole is formed in the center of the base plate, and the sand filling cylinder is arranged right above the round hole;
the sand filling cylinder comprises a sand filling cylinder body, the top end of the supporting rod is connected to the side wall of the sand filling cylinder body, a sand leakage body is arranged below the sand filling cylinder body, a piston plate for controlling sand leakage amount is arranged at the joint of the sand filling cylinder body and the sand leakage cylinder body, and the bottom end of the sand leakage cylinder body extends downwards and is close to the center of the circular hole; the end part of the piston plate is provided with a piston handle, the piston handle is positioned on the outer side of the sand filling cylinder and clings to the wall of the sand filling cylinder, the bottom of the sand leakage cylinder is provided with a through hole, and the aperture of the through hole is smaller than that of the round hole and is positioned right above the round hole.
As a preferred scheme of the utility model, irritate that a sand section of thick bamboo all adopts transparent material, just dress sand barrel with the lateral wall of hourglass sand barrel is provided with the range scale respectively, just supreme figure increases in proper order down to the range scale.
As an optimized scheme of the utility model, the piston plate sets up to circular, and with the installation of a sand section of thick bamboo footpath adaptation is irritated.
As an optimized proposal of the utility model, the sand leakage cylinder body gradually reduces the sectional area from the top to the bottom.
As a preferred scheme of the utility model, install a plurality ofly around the base plate and be used for fixing the clamp plate of base plate presss from both sides.
As an optimized scheme of the utility model, the bracing piece bottom is fixed on the base plate, just the top of bracing piece is to being close to round hole axis direction slope.
As an optimized scheme of the utility model around the round hole a plurality of recesses have been seted up on the base plate, install the bottom of bracing piece in the recess, the bracing piece top with dress sand barrel fixed connection.
Compared with the prior art, the utility model following beneficial effect has:
the utility model directly arranges the piston plate in the sand filling cylinder to make the sand in the cylinder flow out and control the amount and speed of the flowing sand by rotating the piston handle; the circular hole on the base plate is fixed opposite to the through hole at the bottom of the sand filling cylinder, the coincident alignment position is not needed to be maintained manually, the sand filling amount in the pit hole under the base plate can be observed in real time, the sand filling amount can be adjusted in real time, the sand quality which is not added into the sand filling cylinder at last is measured, the frequency of measuring the sand quality is greatly reduced, the operation is simple, the labor intensity and the difficulty of workers are reduced, and the measuring efficiency of the roadbed compactness is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic top view of the apparatus according to the embodiment of the present invention;
the reference numerals in the drawings denote the following, respectively:
1-filling a sand cylinder; 2-a substrate; 3-a piston plate; 4-filling a sand cylinder body; 5-a circular hole; 6-through holes; 7-sand leaking cylinder; 8-range scale; 9-a piston shank; 10-a support bar; 11-a groove; 12-platen clamp.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The traditional sand filling method in the definition adopts a mode of combining a sand filling cylinder and an inverted funnel to leak sand into the pit hole, and the combined process may influence the sand filling quality and the measurement result; for example, a road subgrade compactness measuring device disclosed in CN210421050U reduces the number of times of measuring the sand quality of a sand filling cylinder, but still leaks sand in a mode of combining the sand filling cylinder and a funnel, and the device is still complicated. This embodiment will irritate a sand section of thick bamboo and the shape system of funnel unites two into one, forms new sand section of thick bamboo form of irritating, and can adjust hourglass sand speed and leak sand volume at any time, and the structure is simpler, and it is more convenient to operate, improves survey efficiency.
As shown in fig. 1 and fig. 2, the utility model provides a roadbed compaction method experimental device, which comprises a base plate 2 and a sand filling cylinder 1, wherein the sand filling cylinder 1 is connected with the base plate 2 through a plurality of support rods 10, a round hole 5 is arranged in the center of the base plate 2, and the sand filling cylinder 1 is arranged right above the round hole 5; during the use, select a comparatively flat road bed road surface of department and will need the road bed road surface clean up of survey, place base plate 2 on this road bed road surface of department, have a pot hole that awaits measuring in the road bed under 5 of round hole that base plate 2 center department was seted up, a plurality of bracing pieces 10 use the vertical axis of round hole 5 as the center, erect around round hole 5 and will irritate a sand section of thick bamboo 1 support and fix directly over round hole 5.
In the implementation process of the sand filling method, the stability of the device influences the sand filling quality and further influences the accuracy of a measuring result, in order to improve the stability of the device, a plurality of pressure plate clamps 12 used for fixing the base plate 2 are arranged around the base plate 2, and the base plate 2 is stably fixed on the roadbed ground by the pressure plate clamps 12; furthermore, a plurality of grooves 11 are formed in the base plate 2 around the circular hole 5, the bottom of the support rod 10 is installed in the grooves 11, and the top of the support rod 10 is fixedly connected with the sand containing barrel 4; the supporting rods 10 are fixed in the grooves 11 formed in the base plate 2, for convenience of installation, the four grooves 11 are formed in the peripheral symmetrical positions of the round holes 5, the angles between every two adjacent grooves 11 are ninety degrees, furthermore, the bottom of each supporting rod 10 is fixed on the base plate 2, the top of each supporting rod 10 is close to the round hole 5, the supporting rod is inclined in the axial direction, and the supporting rods are fixedly connected to the side wall of the sand filling cylinder 4.
In detail, the sand filling cylinder 1 comprises a sand filling cylinder body 4, the top end of a support rod 10 is connected to the side wall of the sand filling cylinder body 4, a sand leakage cylinder body 7 is installed below the sand filling cylinder body 4, a piston plate 3 used for controlling sand leakage amount is installed at the joint of the sand filling cylinder body 4 and the sand leakage cylinder body 7, the sand filling cylinder body 4 and the sand leakage cylinder body 7 are integrally connected, the piston plate is used as a boundary, sand is filled into the sand filling cylinder body 4 at the upper end and temporarily stored (all sand is uniformly weighed and placed in a special container before being poured into the sand filling cylinder body 4), the bottom end of the sand leakage cylinder body 7 extends downwards and is close to the center of the round hole 5, and sand leaks downwards into the roadbed pit hole.
The end part of the piston plate 3 is provided with a piston handle 9, the piston handle 9 is positioned outside the sand filling cylinder 1 and clings to the wall of the sand filling cylinder 1, the bottom of the sand leakage cylinder 7 is provided with a through hole 6, and the aperture of the through hole 6 is smaller than that of the round hole 5 and is positioned right above the round hole 5. Piston handle 9 is connected with piston plate 3, it rotates piston handle 9 and drives piston plate 3 and rotate, change piston plate 3 and irritate the gap size between the sand section of thick bamboo 1 inner wall, thereby control gets into the grit volume of hourglass sand section of thick bamboo 7 from dress sand section of thick bamboo 4, it extends to directly over round hole 5 to leak sand section of thick bamboo 7 bottom, it is very near with the distance of round hole 5, reduce the grit quantity that falls into outside the pothole, if the grit does not accurately fall into the pothole that awaits measuring in the operation process, the measurement personnel do not notice again, all will make the survey result error appear. Therefore, the aperture of the through hole 6 is smaller than that of the round hole 5, the distance between the through hole 6 and the round hole 5 is small, and the change of the sand amount in the pot hole can be observed properly.
In practical measurement, after standard sand falls into a pit, the top sand layer in the pit is not level, but the middle of the pit is high, two sides of the pit are low, and the time for stopping sand leakage is particularly taken when the pit is to be filled with the sand. Further, in order to observe the sand leakage and sand filling conditions more conveniently and reduce errors, the sand filling cylinder 1 is made of transparent materials, the outer side walls of the sand filling cylinder 4 and the sand leakage cylinder 7 are provided with range scales 8 respectively, the sand leakage volume can be visually observed according to the scales on the sand filling cylinder 1, the sand filling amount is estimated, and the range scales 8 are sequentially increased from the lower-up numbers in order to read conveniently.
Further, the piston plate 3 is circular and is installed in a manner of being matched with the diameter of the sand filling cylinder 1, and the piston plate 3 is circular and is matched with the diameter of the cylinder body installed at the installation position in the sand filling cylinder 1, so that sand leakage of sand is completely blocked when the piston plate 3 is in a closed state.
Furthermore, leak sand barrel 7 from last to diminishing gradually of sectional area down, leak sand barrel 7's section of thick bamboo footpath from last to diminishing gradually down, leak sand barrel 7 downwardly extending, bottom through-hole 6 directly extends to 5 center departments of round hole, makes the grit effectively get into the pot hole in, reduces hourglass sand volume, reduce the error. And because the sand filling cylinder 1 is made of transparent material, the sand amount in the sand filling cylinder 1 can be observed at any time, the sand filling amount in the pit is convenient to observe due to the fact that the non-transparent material is not blocked on the sight, the sand amount added into the sand filling cylinder 1 is controlled in real time according to the observed sand condition in the device, the sand leakage amount is controlled by adjusting the piston handle 9, and when the pit is to be filled, the sand amount control is particularly required to be noticed at any time. Stopping sand filling after the pit is filled, measuring the mass of the sand which is not added into the sand filling cylinder 1 to obtain the mass of the sand filled into the pit, and easily obtaining the required related experimental data according to the recorded data of the sand volume in the sand filling cylinder 1 recorded each time.
According to the roadbed compaction method experimental device provided by the embodiment, the transparent material sand filling cylinder with scales is erected right above the circular hole of the base plate through the supporting rod, the sand amount and the sand leakage condition in the sand filling cylinder can be observed in real time, sand with well-measured quality is added into the sand filling cylinder according to the observed condition, the frequency of measuring the quality of the sand in the sand filling cylinder is reduced, the labor intensity of workers is reduced, the sand leakage amount is adjusted through the piston plate and the piston handle, and the measurement error is effectively reduced; because the sand filling cylinder does not need to be moved for many times and the quality of the sand in the sand filling cylinder is measured, workers do not need to maintain the alignment of the sand filling cylinder and the axis of the round hole for many times, the working difficulty is reduced, and the measuring efficiency is improved.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (7)
1. The utility model provides a road bed compaction method experimental apparatus which characterized in that: the sand filling device comprises a substrate (2) and a sand filling cylinder (1), wherein the sand filling cylinder (1) is connected with the substrate (2) through a plurality of support rods (10), a round hole (5) is formed in the center of the substrate (2), and the sand filling cylinder (1) is arranged right above the round hole (5);
the sand filling cylinder (1) comprises a sand filling cylinder body (4), the top end of the supporting rod (10) is connected to the side wall of the sand filling cylinder body (4), a sand leaking cylinder body (7) is installed below the sand filling cylinder body (4), a piston plate (3) used for controlling sand leaking amount is installed at the joint of the sand filling cylinder body (4) and the sand leaking cylinder body (7), and the bottom end of the sand leaking cylinder body (7) extends downwards and is close to the center of the round hole (5); the end part of the piston plate (3) is provided with a piston handle (9), the piston handle (9) is positioned outside the sand filling cylinder (1) and clings to the cylinder wall of the sand filling cylinder (1), the bottom of the sand leakage cylinder (7) is provided with a through hole (6), and the aperture of the through hole (6) is smaller than that of the round hole (5) and is positioned right above the round hole (5).
2. The roadbed compaction method experimental device of claim 1, wherein: irritate sand section of thick bamboo (1) and all adopt transparent material, just dress sand section of thick bamboo (4) with the lateral wall of hourglass sand section of thick bamboo (7) is provided with range scale (8) respectively, just supreme number increases in proper order down in range scale (8).
3. The roadbed compaction method experimental device of claim 2, wherein: the piston plate (3) is circular and is installed in a manner of being matched with the diameter of the sand filling cylinder (1).
4. A roadbed compaction experimental device according to claim 3, wherein the cross section area of the sand leaking cylinder body (7) is gradually reduced from top to bottom.
5. The roadbed compaction method experimental device of claim 4, wherein: a plurality of pressure plate clamps (12) used for fixing the substrate (2) are arranged around the substrate (2).
6. The roadbed compaction experimental device is characterized in that the bottom of the support rod (10) is fixed on the base plate (2), and the top of the support rod (10) inclines towards the axial direction close to the round hole (5).
7. The roadbed compaction method experimental device of claim 4, wherein: a plurality of grooves (11) are formed in the base plate (2) around the round hole (5), the bottom of the supporting rod (10) is installed in the grooves (11), and the top of the supporting rod (10) is fixedly connected with the sand cylinder body (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022101865.0U CN213328979U (en) | 2020-09-23 | 2020-09-23 | Roadbed compaction method experimental device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022101865.0U CN213328979U (en) | 2020-09-23 | 2020-09-23 | Roadbed compaction method experimental device |
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| CN213328979U true CN213328979U (en) | 2021-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544414A (en) * | 2021-12-30 | 2022-05-27 | 湖南聚创建筑科技有限公司 | Rapid roadbed compactness detection equipment and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544414A (en) * | 2021-12-30 | 2022-05-27 | 湖南聚创建筑科技有限公司 | Rapid roadbed compactness detection equipment and use method thereof |
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