CN207964415U - Sand replacement method detects fill subgrade compactness excavating device of testing pits - Google Patents
Sand replacement method detects fill subgrade compactness excavating device of testing pits Download PDFInfo
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- CN207964415U CN207964415U CN201820529830.7U CN201820529830U CN207964415U CN 207964415 U CN207964415 U CN 207964415U CN 201820529830 U CN201820529830 U CN 201820529830U CN 207964415 U CN207964415 U CN 207964415U
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- China
- Prior art keywords
- cylinder
- punching bar
- replacement method
- excavating device
- testing pits
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model is related to Subgrade Compaction detection fields in civil engineering, disclose a kind of sand replacement method detection fill subgrade compactness excavating device of testing pits, including a cylinder and a punching bar for being fixed on cylinder；The cylinder is hollow-core construction and bottom is coaxially disposed equipped with opening, the punching bar and cylinder and can be equipped with tip along the axial movement of cylinder, the bottom of the punching bar, and the cylinder opens hole knife equipped with the cutting soil body；The utility model is easy to use, reduces the labor intensity of staff, and testing pits for excavation can meet code requirement, improve the accuracy of detection.
Description
Technical field
The utility model is related to Subgrade Compaction detection fields in civil engineering more particularly to a kind of detection of sand replacement method to banket
Subgrade Compaction excavating device of testing pits.
Background technology
Subgrade Compaction be reflect compaction a kind of important quality index, it be directly related to road surface intensity and
Service life；Sand replacement method be Subgrade Compaction detection in most common test method, because its numerical value accuracy and result can
Representative and be widely used in highway construction, Determining Degree of Extrusion by Impregnation Sand is by the normal sand of known apparent density come equal bodies
Soil sample after the completion of product displacement compacting, to which the practical dry density of roadbed soil sample be calculated, and obtains most with laboratory test
Big dry density is compared to obtain compactness.
According to code requirement, the shape tested pits should be cylinder, and pit-hole should be vertical, and the depth tested pits, which should be equal to, measures layer
Thickness；But in real process, staff generally uses chisel, hammer, spoon etc. to be used as trenching tool, not only labor intensity
Greatly, labour danger coefficient is high, and the obtained shape tested pits often does not meet specification；Bore of testing pits it is up big and down small or on
It is small lower big, the compactness measured will be caused bigger than normal or less than normal；Moreover, using above-mentioned tool, the depth of excavation is not easy to grasp, and
For road roller in roller compaction process, stress distribution is triangular in shape, therefore for each compacted lift, the compacting of more downward position
Spend smaller, depth of digging pit in this way will not enough cause the compaction value measured bigger than normal, and above-mentioned factor affects the accuracy of detection.
Although at present there are also dedicated excavating device of testing pits, its is complicated, apparent insufficient on ease of use.
It is therefore desirable to a kind of sand replacement method detects fill subgrade compactness excavating device of testing pits, it is easy to use, favorably
In the labor intensity for reducing staff, and testing pits for excavation can meet code requirement, to improve the accuracy of detection.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of sand replacement method detection fill subgrade compactnesss with testing pits out
Device is dug, it is easy to use, the labor intensity of staff is advantageously reduced, and testing pits for excavation can meet code requirement, with
Improve the accuracy of detection.
The sand replacement method detection fill subgrade compactness of the utility model includes a cylinder and one with excavating device of testing pits
It is fixed on the punching bar of cylinder；The cylinder is hollow-core construction and bottom is equipped with opening, and the punching bar is coaxially disposed with cylinder
And it can be equipped with tip along the axial movement of cylinder, the bottom of the punching bar, the cylinder opens hole knife equipped with the cutting soil body.
It is further improved as to above-mentioned technical proposal, the punching bar at least partially screw-rod structure, and punching bar
It is connected by screw thread pair between cylinder so that the cylinder can be rotated using punching bar as shaft.
It is further improved as to above-mentioned technical proposal, an operation handle I is vertically connected at the top of the punching bar.
It is further improved as to above-mentioned technical proposal, the open top of the cylinder and is connected with an operation handle
II, the punching bar stretch into after passing through operation handle II in cylinder.
It is further improved as to above-mentioned technical proposal, the top of the operation handle II is equipped with a spigot nut, institute
Punching bar is stated to be threadedly coupled with spigot nut.
It is further improved as to above-mentioned technical proposal, the left and right ends of the operation handle II are equipped with location hole.
It is further improved as to above-mentioned technical proposal, the outer wall of the cylinder is equipped with the scale for fathoming
Ruler.
It is further improved as to above-mentioned technical proposal, the hole knife of opening includes cutter hub and blade, and the cutter hub is with spiral shell
Rotation mode sets cylinder inner wall, and the blade is located at the lower end of cutter hub.
It is further improved as to above-mentioned technical proposal, the cylinder is equipped at least two and disposed in parallel opens hole
Knife, the cutter hub vertical cylinder inner wall setting for opening hole knife.
It is further improved as to above-mentioned technical proposal, the barrel of the cylinder is equipped with vertical cut (V. cut), described vertical scarce
The short transverse of opening's edge cylinder is arranged and extends to the bottom opening of cylinder.
By above disclosure, the utility model has following advantageous effects：
The sand replacement method of the utility model detects fill subgrade compactness excavating device of testing pits, and when construction selects flat first
Fill subgrade, then rotate punching bar either vertical pressing punching bar punching bar bottom tip make its can be readily intercalated into or
It pierces in the soil body；When punching bar enters the soil body and reaches predetermined depth, then rotor or vertical pressing cylinder, on cylinder
The hole knife machinable soil body is opened, punching bar and cylinder is taken out after the soil body reaches predetermined depth successively again when cylinder enters, takes out shredding
Soil can excavate formation and test pits；The present apparatus is easy to use, greatly reduces the labor intensity of staff；Due to punching bar with
Cylinder is coaxially disposed, and can keep verticality in the fixed cylinder of punching bar, specification can be met by being formed by test pits
It is required that while excavate depth be easily mastered, effectively increase the accuracy of detection.
Description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is the vertical view of the utility model；
Fig. 3 is the expanded view of the cylinder of the utility model.
Specific implementation mode
Below in conjunction with the attached drawing of the utility model, the technical scheme in the embodiment of the utility model is carried out clear, complete
Site preparation describes；Obviously, the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments,
It is obtained by those of ordinary skill in the art without making creative efforts based on the embodiments of the present invention
Every other embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1 to Figure 3：The sand replacement method detection fill subgrade compactness of the present embodiment includes one with excavating device of testing pits
A cylinder 1 and a punching bar 2 for being fixed on cylinder 1；The cylinder 1 is hollow-core construction and bottom is equipped with opening, the punching
Bar 2 is coaxially disposed with cylinder 1 and can be equipped with tip 2a, the cylinder 1 along the axial movement of cylinder 1, the bottom of the punching bar 2
Be equipped with the cutting soil body opens hole knife 3；The top of cylinder 1 can be closed, but its center is equipped with the rod aperture passed through for punching bar 2；It wears
The tip 2a of 2 bottom of core bar can be integrally provided on punching bar 2, can also be to be detachably connected with, be then conveniently replaceable at this time；Open hole
Knife 3 can cut the soil body along soil body moving process in cylinder 1, can be integrally provided on cylinder 1, can be existing
Cutter, as long as said effect can be realized；Flat fill subgrade is selected when construction first, then rotate punching bar 2 or is hung down
Straight pressing punching bar 2, the tip 2a of 2 bottom of punching bar makes it can be readily intercalated into or pierce in the soil body；Wait for punching bar 2 into burying
When body reaches predetermined depth, then rotor 1 or vertical pressing cylinder 1, the hole 3 machinable soil body of knife is opened on cylinder 1, works as circle
Cylinder 1 takes out punching bar 2 and cylinder 1 successively again after reaching predetermined depth into the soil body, and taking out the soil of shredding can excavate to form examination
Hole；The present apparatus is easy to use, greatly reduces the labor intensity of staff；Since punching bar 2 and cylinder 1 are coaxially disposed,
Cylinder 1 can keep verticality in the case of punching bar 2 is fixed, and code requirement can be met by being formed by test pits, and be excavated simultaneously
Depth be easily mastered, effectively increase the accuracy of detection.
In the present embodiment, at least partially screw-rod structure of the punching bar 2, and pass through screw thread between punching bar 2 and cylinder 1
Pair is connected so that the cylinder 1 can be rotated with punching bar 2 for shaft；Punching bar 2 is equipped with one section of external screw thread, or wears
2 whole sections of core bar can set external screw thread；From the interior spiral shell for setting or being coordinated accordingly with external screw thread by other component setting on cylinder 1
Line；Using this structure, punching bar 2 and cylinder 1 screw in the soil body in a spiral manner, are easy deeply, work efficiency is high；For ease of
Torquing operations are carried out to punching bar 2, the top of the punching bar 2 is vertically connected with an operation handle I 4, at this time punching bar 2 and behaviour
It is " T " shape to make the connection of handle I 4；Meanwhile the top of the cylinder 1 is also connected with an operation handle II5；Operation handle I 4 and behaviour
It can be straight-bar or straight panel structure to make handle II5；Operation handle II5 can be fixed on the top of cylinder 1 by welding manner, and
Along 1 top surface of cylinder, a wherein diametric(al) is arranged, and the punching bar 2 stretches into after passing through operation handle II5 in cylinder 1 at this time,
Internal thread can be set in the corresponding rod aperture of operation handle II5；The open top of cylinder 1, so as to take out excavation from the opening
Soil.
In the present embodiment, the top of the operation handle II5 is equipped with a spigot nut 6, the punching bar 2 and spigot nut
6 are threadedly coupled；Spigot nut 6 is connected by welding manner with operation handle II5, and punching bar 2 sequentially passes through spigot nut 6, behaviour
Make handle II5 and 1 top of cylinder and stretches into inside cylinder 1；Spigot nut 6 is conducive to improve the coaxial of punching bar 2 and cylinder 1
Degree, prevents punching bar 2 or cylinder 1 from shifting in rotary course, and raising forms the standard degree tested pits.
In the present embodiment, the left and right ends of the operation handle II5 are equipped with location hole 5a；When construction location hole 5a can with it is straight
Bar coordinates, and operation handle II5 and cylinder 1 are fixed on roadbed, and be conducive to punching bar 2 stablizes rotation.
In the present embodiment, the outer wall of the cylinder 1 is equipped with the graduated scale for fathoming；So as to accurately measure circle
Cylinder 1 enters the depth of the soil body, improves the accuracy of detection.
In the present embodiment, the hole knife 3 of opening includes that cutter hub 3a and blade 3b, the cutter hub 3a set cylinder 1 in a spiral manner
Inner wall, the blade 3b are located at the lower end of cutter hub 3a；Opening the quantity of hole knife 3 can set as needed, but in order to improve out hole effect
Rate, the cylinder 1 are equipped at least two disposed in parallel open and cheat knife 3, and the present embodiment preferably uses four；Respectively open hole knife 3
Cutter hub 3a spiral in the same direction settings, open hole knife 3 cutter hub 3a can the setting of 1 inner wall of vertical cylinder, institute between adjacent cutter hub 3a at this time
The space of formation forms the soil body effect of helical feed, and the soil up constantly conveyed is flowed out from the open top of cylinder 1, is made
With very convenient；Blade 3b is then close to the bottom opening of cylinder 1.
In the present embodiment, the barrel of the cylinder 1 is equipped with vertical cut (V. cut) 7, and the vertical cut (V. cut) 7 is along the height side of cylinder 1
To the bottom opening for being arranged and extending to cylinder 1；The quantity of vertical cut (V. cut) 7 can be set as needed, and the present embodiment is preferably four
It is a, and the top of vertical cut (V. cut) 7 is arc-shaped so that whole vertical cut (V. cut) 7 is in inverted " u "-shaped；Using this structure, in 1 spiral shell of cylinder
The excavation resistance of the soil body can be effectively reduced during rotation, improved and excavated efficiency.
Finally illustrate, applies specific case herein and the principles of the present invention and embodiment are explained
It states, the explanation of above example is only intended to the core concepts that help understands the utility model, are not departing from the utility model original
In the case of reason, can also to the utility model, some improvement and modification can also be carried out, these improvement and modification also fall into the utility model
Protection domain in.
Claims (10)
1. a kind of sand replacement method detects fill subgrade compactness excavating device of testing pits, it is characterised in that：Including a cylinder and one
Root is fixed on the punching bar of cylinder；The cylinder is hollow-core construction and bottom is equipped with opening, and the punching bar is coaxially set with cylinder
It sets and tip can be equipped with along the axial movement of cylinder, the bottom of the punching bar, the cylinder opens hole equipped with the cutting soil body
Knife.
2. sand replacement method according to claim 1 detects fill subgrade compactness excavating device of testing pits, it is characterised in that：Institute
Punching bar at least partially screw-rod structure is stated, and is connected by screw thread pair between punching bar and cylinder so that the cylinder
It can be rotated using punching bar as shaft.
3. sand replacement method according to claim 2 detects fill subgrade compactness excavating device of testing pits, it is characterised in that：Institute
It states and is vertically connected with an operation handle I at the top of punching bar.
4. sand replacement method according to claim 2 detects fill subgrade compactness excavating device of testing pits, it is characterised in that：Institute
It states the open top of cylinder and is connected with an operation handle II, the punching bar stretches into after passing through operation handle II in cylinder.
5. sand replacement method according to claim 4 detects fill subgrade compactness excavating device of testing pits, it is characterised in that：Institute
The top for stating operation handle II is equipped with a spigot nut, and the punching bar is threadedly coupled with spigot nut.
6. sand replacement method according to claim 4 detects fill subgrade compactness excavating device of testing pits, it is characterised in that：Institute
The left and right ends for stating operation handle II are equipped with location hole.
7. sand replacement method according to claim 1 detects fill subgrade compactness excavating device of testing pits, it is characterised in that：Institute
The outer wall of cylinder is stated equipped with the graduated scale for fathoming.
8. sand replacement method according to any one of claims 1 to 7 detects fill subgrade compactness excavating device of testing pits, special
Sign is：The hole knife of opening includes cutter hub and blade, and the cutter hub sets cylinder inner wall in a spiral manner, and the blade is located at cutter hub
Lower end.
9. sand replacement method according to claim 8 detects fill subgrade compactness excavating device of testing pits, it is characterised in that：Institute
State cylinder equipped at least two it is disposed in parallel open hole knife, the cutter hub vertical cylinder inner wall setting for opening hole knife.
10. sand replacement method according to any one of claims 1 to 7 detects fill subgrade compactness excavating device of testing pits,
It is characterized in that：The barrel of the cylinder is equipped with vertical cut (V. cut), and the vertical cut (V. cut) is arranged and extends to along the short transverse of cylinder
The bottom opening of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820529830.7U CN207964415U (en) | 2018-04-15 | 2018-04-15 | Sand replacement method detects fill subgrade compactness excavating device of testing pits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820529830.7U CN207964415U (en) | 2018-04-15 | 2018-04-15 | Sand replacement method detects fill subgrade compactness excavating device of testing pits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207964415U true CN207964415U (en) | 2018-10-12 |
Family
ID=63727997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820529830.7U Expired - Fee Related CN207964415U (en) | 2018-04-15 | 2018-04-15 | Sand replacement method detects fill subgrade compactness excavating device of testing pits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207964415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152416A (en) * | 2021-04-29 | 2021-07-23 | 中交路桥建设有限公司 | Digging device for measuring compaction degree by sand filling method |
| CN113740134A (en) * | 2021-09-24 | 2021-12-03 | 中国电建集团成都勘测设计研究院有限公司 | Be used for triaxial test soil sample preparation facilities |
-
2018
- 2018-04-15 CN CN201820529830.7U patent/CN207964415U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152416A (en) * | 2021-04-29 | 2021-07-23 | 中交路桥建设有限公司 | Digging device for measuring compaction degree by sand filling method |
| CN113740134A (en) * | 2021-09-24 | 2021-12-03 | 中国电建集团成都勘测设计研究院有限公司 | Be used for triaxial test soil sample preparation facilities |
| CN113740134B (en) * | 2021-09-24 | 2023-11-28 | 中国电建集团成都勘测设计研究院有限公司 | Be used for triaxial test soil sample preparation facilities |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20200415 |