CN207512738U - A kind of ground anchorage - Google Patents
A kind of ground anchorage Download PDFInfo
- Publication number
- CN207512738U CN207512738U CN201720649400.4U CN201720649400U CN207512738U CN 207512738 U CN207512738 U CN 207512738U CN 201720649400 U CN201720649400 U CN 201720649400U CN 207512738 U CN207512738 U CN 207512738U
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- China
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- drilling rod
- flap valve
- ground anchorage
- drill bit
- water filling
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Abstract
The utility model discloses a kind of ground anchorage, and including drilling rod and drill bit, the drilling rod is cylinder type hollow pipe, the drill bit is mounted on the drilling rod bottom end, the drill bit includes pedestal and plural pieces flap valve, and the flap valve is connect with the pedestal by shaft, and torsional spring is equipped in the shaft.The drill bit of the utility model is equipped with flap valve and water filling film bag, flap valve outwardly opens in water filling film bag expansion process, it is formed and expands anchor head and flap valve is pushed to form support flank, earth anchor extraction-resistant behavior will be greatly improved, relief valve is opened during unloading, water filling film water-in-bag body is discharged, and flap valve no longer provides support force to upper earthing, and drilling rod rotation is facilitated to extract.
Description
Technical field
The utility model is related to building traffic engineering apparatus fields, and in particular to a kind of ground anchorage.
Background technology
When loose saturated sand soil site is explored or carries out experiment, often it is related to being drilled with for earth anchor counterforce structure.
In traditional soft soil layer, spirally anchor structure is used widely due to its is simple in structure.Common hand power screw earth anchor is (such as
Mechanical static penetrometer is equipped with) brill disk diameter usually in more than 25cm, and set for monolithic helical disk, drilling rod is mostly using solid
Steel anchor rod, weight are larger.
In loose saturated sand soil site find when cone penetration test and boring extracting soil are tested, using it is above-mentioned spirally
The native later stage is anchored into, the soil body significantly weakens the resistance of drilling rod.The reason of this phenomenon occur is that saturated sand is boring around drilling rod
Bar buries and is liquefied under perturbation action, and soil shear strength almost disappears, and earth anchor pulling capacity in this environment will be by
Weaken to apparent.Have in view of the principal element for influencing earth anchor pulling capacity in saturated sand stratum：By disturbed soil around drilling rod
Body range, liquefaction possibility occurrence and drilling rod surrounding soil pressure-bearing surface, intend on traditional ground anchor structure device basic, to corresponding structure
Part is improved, so as to obtain the ideal ground anchorage suitable for saturated sand stratum.
Before the utility model, in soft soil layer, previous scholars propose all kinds of ground anchorages, such as two-way expansion
Earth anchor, screw anchor, umbrella pressure-bearing earth anchor etc..In addition, Chinese patent CN201320034336.0, which discloses one kind, has spiral
The ground anchor peg of piece improves earth anchor withdrawal resistance by flight.Chinese patent CN201310129938.9 discloses a kind of two-way swollen
Swollen earth anchor, sliding block struts the longitudinal direction of seamless steel pipe and both ends dilatation joint realizes earth anchor expansion.Chinese patent
CN201410210998.8 discloses umbrella pressure-bearing earth anchor recyclable in a kind of soft soil layer, is stitched by umbrella frame and by fiber cloth
The umbrella cover composition anchor bolt of system, and it is linked to be entirety with stake top reinforced concrete lid fine strain of millet, strengthen the withdrawal resistance performance of earth anchor.However, these are often
For the ground anchor structure of soft soil layer, the earth anchor drilling rod disturbance in saturated sand stratum can not be solved and generate asking for liquefaction of soil mass
Topic.Therefore, the prior art need to be improved, so as to the ground anchorage in comprehensively solve saturated sand place faced it is each
Kind problem, such as saturated sand liquefaction, extraction-resistant behavior deficiency.
In view of drawbacks described above, the utility model creator obtains this practicality newly finally by prolonged research and practice
A kind of ground anchorage of type.
Utility model content
To solve above-mentioned technological deficiency, the technical solution adopted in the utility model is, provides a kind of ground anchorage, including
Drilling rod and drill bit, the drilling rod are cylinder type hollow pipe, and the drill bit is mounted on the drilling rod bottom end, and the drill bit includes pedestal
With plural pieces flap valve, the flap valve is connect with the pedestal by shaft, and torsional spring is equipped in the shaft.
Preferably, the pedestal of the drill bit is latched equipped with shaft, for controlling the open angle of the flap valve.
Preferably, being equipped with water filling film bag in the cavity formed between the flap valve, the water filling film bag is elliposoidal,
Lowest part opens the depth after maximum angle not less than the flap valve completely after expansion.
Preferably, being equipped with the water injection pipe of perforation in the drilling rod, described water injection pipe one end is connect with the water filling film bag,
The other end stretches out the drilling rod and is connect with external connecting pipe, and the connecting tube is connected with high-pressure hydraulic pump.
Preferably, relief valve is installed in the connecting tube.
Preferably, multiple permeable holes are evenly arranged on the wall of the drilling rod.
Preferably, the outer wall of the drilling rod is equipped with multistage screw thread disc.
Preferably, the screw thread disc disk diameter increases step by step upwards along the drilling rod bottom end.
Preferably, the disk diameter of the screw thread disc is 6-10cm.
Preferably, the drilling-rod external wall is equipped with Multi-stage rotary card slot, the ground anchorage includes rotating the drilling rod
Swingle, the swingle include clamping opening and multiple swing handles, the clamping opening shape with it is described rotate card slot it is corresponding.
Preferably, the drilling rod top is equipped with connection bolt.
The beneficial effects of the utility model are compared with the prior art：
1, the drill bit of the utility model is equipped with flap valve and water filling film bag, and flap valve is beaten outward in water filling film bag expansion process
It opens, is formed and expand anchor head flap valve is simultaneously pushed to form support flank, will greatly improve earth anchor extraction-resistant behavior, when unloading opens pressure release
Valve, the discharge of water filling film water-in-bag body, flap valve no longer provide support force to upper earthing, and drilling rod rotation is facilitated to extract.
2, drilling rod outside is equipped with permeable hole, and excess pore water caused by disturbance can pass through during drilling rod pierces saturated sand
Permeable hole penetrates into drilling rod, accelerates its dissipation, so as to reduce the possibility that liquefaction occurs, ensures the extraction-resistant behavior of earth anchor drilling rod.
3, the monolithic large-diameter thread disc that multistage minor diameter screw thread disc replaces traditional earth anchor is distributed in drilling rod outside,
Drilling rod can utmostly reduce during burying by the range of disturbed soil around drilling rod, and drilling rod side wall carries multistage minor diameter spiral shell
Line disc, and disk diameter increases step by step upwards along drilling rod, can reduce withdrawal resistance caused by reducing due to disc diameter to the greatest extent and lose.
4, earth anchor and drilling equipment or miscellaneous equipment can be connected by drilling rod top bolt, drilling-rod external wall is equipped with multiple rotations
Turn card slot, can be manually drilled with according to piercing depth and adjusting swingle position in due course.
5, drilling rod, drill bit in the utility model ground anchorage, water injection pipe, water filling film bag, connecting tube, high-pressure hydraulic pump, rotation
Bull stick is individual member, convenient for disassembly and assembly, convenient for replacing, can be used cooperatively as needed.
Description of the drawings
In order to illustrate more clearly of the technical solution in various embodiments of the utility model, institute in being described below to embodiment
Attached drawing to be used is needed to be briefly described.
Fig. 1 is the schematic diagram of the utility model drill pipe body structure；
Fig. 2 is the working state schematic representation of the utility model drill bit；
Fig. 3 is the structure chart of the utility model swingle；
Fig. 4 is the overall structure figure of the utility model ground anchorage.
Digital representation in figure：
1. 11. permeable hole of drilling rod, 12. screw thread disc 13. connection bolt 14. rotates 2. drill bit of card slot, 21. flap valve
22. 23. shaft of pedestal latches 3. 7. high-pressure hydraulic pump of water filling film bag 4. water injection pipe, 5. connecting tube, 6. relief valve, 8. swingle
81. 82. swing handle of clamping opening
Specific embodiment
Below in conjunction with attached drawing, to the utility model, above-mentioned and other technical characteristic and advantage are described in more detail.
Embodiment one：
As shown in Figure 1, a kind of ground anchorage, including drilling rod 1 and drill bit 2.1 main body of drilling rod is hollow cylindrical tube, and bottom end is pacified
Equipped with drill bit 2.
Multiple permeable holes 11 are evenly arranged on 1 outer wall of drilling rod, drilling rod 1, which pierces saturated sand and disturbs in the process, to be caused
Excess pore water can by permeable hole 11 penetrate into drilling rod 1, accelerate drilling rod 1 bury during vibrate caused by excess pore water pressure
It dissipates, reduces the possibility that liquefaction occurs, so as to ensure the extraction-resistant behavior of earth anchor drilling rod.
Multistage screw thread disc 12 is additionally provided on 1 outer wall of drilling rod, the disk diameter of screw thread disc 12 increases step by step upwards along drilling rod 1,
This design can reduce the withdrawal resistance caused by disc diameter reduction to the greatest extent and lose.
1 top of drilling rod is equipped with connection bolt 13, for connecting drilling equipment or miscellaneous equipment, engineering is facilitated to use.Drilling rod 1
Outer wall is equipped with two-stage and rotates card slot 14, respectively close to 1 top of drilling rod and middle part, can rotate stress position according to depth adjustment is pierced
It puts and is drilled with.
Embodiment two：
The present embodiment is on the basis of above-described embodiment, the 1 length 150cm of drilling rod, outer diameter 3.4cm.The permeable hole
11 assume diamond in shape or quincuncial arrangement, pitch of holes 2-6cm, aperture 0.1-0.2cm.Permeable 11 installation position of aperture and aperture are computed
It obtains, it is ensured that excess pore water enters drilling rod 1, reduces the possibility that liquefaction occurs.
The disk diameter of the screw thread disc 12 is 6-10cm, and the monolithic of traditional earth anchor is replaced by multistage minor diameter screw thread disc 12
Large-diameter thread disc can utmostly reduce around drilling rod 1 during drilling rod 1 buries by the range of disturbed soil.
1 outer wall of drilling rod is equipped with Multi-stage rotary card slot 14, and every grade of rotation 14 spacing of card slot is identical, can be according to piercing depth
Degree adjustment rotation forced position is drilled with.
Embodiment three：
The present embodiment is on the basis of above-described embodiment, as shown in Fig. 2, the drill bit 2 includes pedestal 22 and plural pieces are lived
Valve 21.The flap valve 21 is connect with pedestal 22 by shaft, and torsional spring is equipped in the shaft, and flap valve 21 can be opened with stress,
After external force removes, flap valve 21 is closed under spring force.The pedestal 22 of drill bit 2 is equipped with shaft and latches 23, for controlling
The open angle of flap valve 21 is stated, is limited when flap valve 21 is opened to maximum angle by shaft lock 23.Between each flap valve 21
Water filling film bag 3 is installed, water filling film bag 3 is connect with water injection pipe 4 perforative in drilling rod 1, and water filling film bag 3 has in the cavity of composition
Shrinkage is expanded in water filling.
A, b, c are structure diagram of the drill bit 2 under different conditions in figure, and a is 21 closed state of flap valve in figure, water filling film
3 non-water fillings of bag, in folded state；B shows that water filling film bag 3 starts dilation by water injection in figure, and flap valve 21 is pushed to outwardly open；In figure
C flap valves 21 are opened to maximum angle, and 3 lowest part of water filling film bag is opened to the depth after maximum angle not less than flap valve 21, are formed
Flank is supported, improves earth anchor extraction-resistant behavior.Water body in water filling film bag 3 is discharged during unloading, flap valve 21 no longer provides upper earthing
Support force facilitates the rotation of drilling rod 1 to extract.
Example IV：
For the present embodiment on the basis of above-described embodiment, the ground anchorage includes the rotation for rotating the drilling rod 1
Bar 8.As shown in figure 3, the swingle 8 includes clamping opening 81 and three swing handles 82,81 shape of clamping opening and 1 outer wall of drilling rod
Rotation card slot 14 corresponds to.
Manually be drilled with and pseudo-first-order revotating card slot 14 is fixed in the clamping opening 81 of swingle 8, rotary motion handle
82, drilling rod 1 is driven to be drilled with, drilling rod 1 can adjust 8 position of swingle in due course into underground layer according to depth is pierced.
Embodiment five：
The present embodiment is on the basis of above-described embodiment, as shown in figure 4, a kind of ground anchorage, revolves including drilling rod 1, drill bit 2
Bull stick 8 and high pressure water injection system, the high pressure water injection system includes the water filling film bag 3 being mounted in drill bit 2, in drilling rod
Water injection pipe 4, independent high-pressure hydraulic pump 7 and the connecting tube 5 for connecting the water injection pipe 4 and high-pressure hydraulic pump 7.The connection
Relief valve 6 on pipe 5 is installed, pressure release is carried out for releasing the water in high pressure water injection system.Described 4 one end of water injection pipe and the note
Moisture film bag 3 connects, and the other end stretches out drilling rod 2 and connect with external connecting pipe 5.Drilling rod 1, drill bit in the utility model ground anchorage
2nd, water injection pipe 4, water filling film bag 3, connecting tube 5, high-pressure hydraulic pump 7, swingle 8 are individual member, convenient for disassembly and assembly, convenient for replacing,
It can be used cooperatively as needed.
The purpose of this utility model is that it reduces to the greatest extent or traditional ground anchorage is overcome to pierce process in saturated sand place
It is middle to lead to the problem of excessive disturbance and cause earth anchor periphery sand that a wide range of liquefaction occurs.Its specifically used step is：
(1) it determines to be drilled with position, after drill bit 2 is positioned, the rotation card slot 14 of drilling rod 2 is buckled in using 8 clamping opening 81 of swingle
Place, operation swing handle 82 are manually drilled with, and rotate card slot 14 to subordinate according to piercing depth and adjusting 8 position of swingle in due course
Place；
(2) after being drilled to designated depth, using the water filling into water filling film bag 3 of high-pressure hydraulic pump 7, water filling film bag 3 expands against
Flap valve 21 is opened, and is formed and is expanded anchor head, and 3 volume of water filling film bag and 21 opening angle of flap valve are controlled according to 7 water yield of high-pressure hydraulic pump
Degree.Drill bit 2, in fan-shaped extension, forms soil-baffling structure in 8 expansion process of film bag；
(3) drilling rod 1 and miscellaneous equipment are fixed by 2 top connection bolt 13 of drilling rod, completes ground anchorage and fix；
(4) it when unloading, opens relief valve 6 and sluices, the 3 sluicing after-contraction of water filling film bag, flap valve 21 is under the effect of torsion spring
It sets back, support force is no longer provided upper earthing, drilling rod 1 is extracted in rotation.
The above is only the preferred embodiment of the present invention, is merely illustrative for the utility model, and
It is unrestricted.Those skilled in the art understands, can be to it in the spirit and scope limited in the utility model claims
Many changes are carried out, are changed or even equivalent, but fall in the scope of protection of the utility model.
Claims (10)
1. a kind of ground anchorage, which is characterized in that including drilling rod and drill bit, the drilling rod be cylinder type hollow pipe, the drill bit
Mounted on the drilling rod bottom end, the drill bit includes pedestal and plural pieces flap valve, and the flap valve is connected with the pedestal by shaft
It connects, torsional spring is installed in the shaft.
2. ground anchorage as described in claim 1, which is characterized in that the pedestal of the drill bit is latched equipped with shaft, is used for
Control the open angle of the flap valve.
3. ground anchorage as claimed in claim 2, which is characterized in that be equipped with water filling in the cavity formed between the flap valve
Film bag, the water filling film bag are elliposoidal, and lowest part opens the depth after maximum angle not less than the flap valve completely after expansion
Degree.
4. ground anchorage as claimed in claim 3, which is characterized in that the water injection pipe of perforation is installed in the drilling rod, it is described
Water injection pipe one end is connect with the water filling film bag, and the other end stretches out the drilling rod and connect with external connecting pipe, the connecting tube and
High-pressure hydraulic pump is connected.
5. ground anchorage as claimed in claim 4, which is characterized in that be equipped with relief valve in the connecting tube.
6. the ground anchorage as described in claim 1-5 is any, which is characterized in that be evenly arranged on the wall of the drilling rod multiple
Permeable hole.
7. ground anchorage as claimed in claim 6, which is characterized in that the outer wall of the drilling rod is equipped with multistage screw thread disc.
8. ground anchorage as claimed in claim 7, which is characterized in that the screw thread disc disk diameter is upward along the drilling rod bottom end
Increase step by step.
9. ground anchorage as claimed in claim 8, which is characterized in that the disk diameter of the screw thread disc is 6-10cm.
10. ground anchorage as claimed in claim 6, which is characterized in that the drilling-rod external wall is equipped with Multi-stage rotary card slot, described
Ground anchorage includes the swingle for rotating the drilling rod, and the swingle includes clamping opening and multiple swing handles, the folder
Mouth-shaped is corresponding with the rotation card slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720649400.4U CN207512738U (en) | 2017-06-06 | 2017-06-06 | A kind of ground anchorage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720649400.4U CN207512738U (en) | 2017-06-06 | 2017-06-06 | A kind of ground anchorage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207512738U true CN207512738U (en) | 2018-06-19 |
Family
ID=62530917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720649400.4U Active CN207512738U (en) | 2017-06-06 | 2017-06-06 | A kind of ground anchorage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207512738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190744A (en) * | 2017-06-06 | 2017-09-22 | 宁波市交通建设工程试验检测中心有限公司 | A kind of ground anchorage suitable for saturated sand place |
| CN115467326A (en) * | 2022-08-26 | 2022-12-13 | 天津送变电工程有限公司 | Extruding-expanding drill type ground anchor |
-
2017
- 2017-06-06 CN CN201720649400.4U patent/CN207512738U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190744A (en) * | 2017-06-06 | 2017-09-22 | 宁波市交通建设工程试验检测中心有限公司 | A kind of ground anchorage suitable for saturated sand place |
| CN107190744B (en) * | 2017-06-06 | 2019-10-29 | 宁波市交通建设工程试验检测中心有限公司 | A kind of ground anchorage suitable for saturated sand place |
| CN115467326A (en) * | 2022-08-26 | 2022-12-13 | 天津送变电工程有限公司 | Extruding-expanding drill type ground anchor |
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