CN103526756A - Self-propelled anchor rod - Google Patents
Self-propelled anchor rod Download PDFInfo
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- CN103526756A CN103526756A CN201310515716.0A CN201310515716A CN103526756A CN 103526756 A CN103526756 A CN 103526756A CN 201310515716 A CN201310515716 A CN 201310515716A CN 103526756 A CN103526756 A CN 103526756A
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- cylindrical member
- self
- anchor pile
- core bar
- locator
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Abstract
The invention relates to the technical field of anchoring, in particular to a self-propelled anchor rod comprising a hollow tubular member. A drill bit is arranged at one end of the tubular member. A plurality of power adapters connected with a drilling machine power head are longitudinally arranged on the outer side of the tubular member at intervals. The anchor rod are divided into multiple sections for drilling, so that a drilling machine with a small drilling stroke can be adopted, and drilling cost is reduced; in addition, a stress section, exposed out of the ground, of the anchor rod is shortened, so that stress condition of the anchor rod is improved greatly, the anchor rod is not easy to twist, strength requirements are low, wall thickness of the tubular member can be reduced, and material cost of the anchor rod can be lowered.
Description
Technical field
The present invention relates to anchoring field, relate in particular to a kind of self-feeding anchor pile.
Background technology
Anchor pole technology is widely applied to each field of engineering technology, such as foundation ditch, side slope, basement anti-floating, the reinforcement protection of tunnel and underground construction, under the soft intricately condition of some geology, adopt first moulding anchor hole to insert again the mode of bolt grouting, in construction, easily there is the situation of collapse hole, become porosity lower, after collapse hole, anchor pole cannot insert anchor hole, affect construction speed, now people often adopt self-feeding anchor pile, be that anchor pole is with drill bit, can serve as drilling rod creeps into voluntarily, no longer take out, existing self-feeding anchor pile is all generally that a joint being connected with rig is set in the upper end of anchor pole, the unit head of rig is connected with described joint, so that moment of torsion and upper and lower driving force to be provided, the stroke of common rig is generally shorter, only be several meters, when rock-bolt length larger, reach tens meters even tens meters time, need to utilize large-scale rig, boring cost sharply rises, and at the boring initial stage, whole anchor pole is all exposed, to bear moment of torsion and bear again downward pressure, stressing conditions is not good, easily distortion, so self-feeding anchor pile requirement of strength is high, general wall thickness is thicker, after self-feeding anchor pile pore-forming, no longer take out, can not reuse, so quite waste.
Summary of the invention
The object of the present invention is to provide a kind of more easily creep into, be difficult for distortion, self-feeding anchor pile cheaply.
The present invention is achieved in that a kind of self-feeding anchor pile, comprises the cylindrical member of hollow, and described cylindrical member one end is provided with drill bit, and longitudinal separation is provided with a plurality of power adapter that are connected with drill power head outside described cylindrical member.
Wherein, described cylindrical member inside is also provided with core bar, and described core bar is separated with cylindrical member and be fixedly connected with by locator, and described locator is provided with fluid through-hole, forms the fluid passage that total length connects between described cylindrical member and core bar.
Wherein, described drill bit side is also provided with laterally or fluid hole radially.
Wherein, described power adapter is flat mouth, arc shaped tile mouth or tooth mouth power adapter.
Wherein, described power adapter is fixed by welding on cylindrical member.
Wherein, described locator is circular, and the external diameter of described locator and the internal diameter of cylindrical member are suitable, and described locator is provided with for the fixing locating hole of core bar; Or described locator is polygonal support, described polygonal support is provided with for the fixing locating hole of core bar.
Wherein, described locator is threaded connection, clamping or flange be fastened on core bar or cylindrical member.Wherein, described locator is at least two, and described locator makes core bar be positioned at the center of cylindrical member.
Wherein, described cylindrical member is segmentation structure, by a plurality of cylindrical members unit, is formed by connecting.
Beneficial effect of the present invention is: the cylindrical member outside of self-feeding anchor pile of the present invention longitudinally (or title is axial) is interval with a plurality of power adapter, when creeping into, first the unit head of rig being acted on to the power adapter of below creeps into, after one section of cylindrical member of below has crept into, the unit head clamper of rig is unclamped and promoted, make the unit head of rig act on the power adapter of adjacent top, to carry out creeping into of second stage, the rest may be inferred, until whole anchor pole creeps into design elevation, owing to anchor pole being divided into a plurality of stages, creep into, so can adopt, creep into the rig that stroke is less, reduce boring cost, in addition, stressed section (drill power head is to the length section of anchor pole between ground) that anchor pole bassets owing to creeping into shortens, so rockbolt stress situation is greatly improved, more be difficult for distortion, requirement of strength is low, can reduce the wall thickness of cylindrical member, reduce anchor pole material cost.In addition, these power adapter also can double as supporting body or anchorage element and the centralizer of anchor pole, can increase the anchored force of anchor pole, can help anchor pole placed in the middle in anchor hole.
Accompanying drawing explanation
Fig. 1 is the structural representation of self-feeding anchor pile embodiment mono-of the present invention;
Fig. 2 is the top view of self-feeding anchor pile embodiment mono-of the present invention;
Fig. 3 be in Fig. 2 A-A to cut-away view;
Fig. 4 be in Fig. 3 B-B to cut-away view;
Fig. 5 is self-feeding anchor pile embodiment mono-work progress view of the present invention;
Fig. 6 is that power adapter is the structural representation of arc shaped tile mouth power adapter;
Fig. 7 is that power adapter is the structural representation of tooth mouth power adapter;
Fig. 8 is the structural representation of self-feeding anchor pile embodiment bis-of the present invention;
Fig. 9 is self-feeding anchor pile embodiment bis-work progress view of the present invention;
Figure 10 is that self-feeding anchor pile embodiment bis-of the present invention is used view;
Figure 11 is the schematic cross-sectional view of self-feeding anchor pile embodiment bis-of the present invention;
Figure 12 is the schematic cross-sectional view of the locator of self-feeding anchor pile of the present invention while being A-frame;
Figure 13 is the structural representation of self-feeding anchor pile embodiment tri-of the present invention;
Figure 14 is self-feeding anchor pile embodiment tri-work progress view of the present invention;
Figure 15 is that self-feeding anchor pile embodiment tri-of the present invention is used view.
Wherein, 1, cylindrical member; 2, drill bit; 21, fluid hole; 3, power adapter; 4, core bar; 5, locator; 51, fluid through-hole; 52, locating hole; 6, fluid passage; 7, grouting soil; 8, slip casting inclusion enclave; 9, anchor hole; 10, unit head clamper.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment mono-as self-feeding anchor pile of the present invention, as shown in Figures 1 to 5, described anchor pole comprises the cylindrical member 1 of hollow, and described cylindrical member 1 one end is provided with drill bit 2, and described cylindrical member 1 outside longitudinal separation is provided with a plurality of power adapter that are connected with drill power head 3.
In the present embodiment, as shown in Figure 2, described power adapter 3 is flat mouth power adapter, be fixed by welding on cylindrical member 1, can be suitable with flat mouth unit head clamper, and from drill power head, obtain the driving force of moment of torsion and above-below direction, can certainly be arc shaped tile mouth power adapter as shown in Figure 6, or tooth mouth power adapter as shown in Figure 7, to match from the unit head clamper of the different shape of the mouth as one speaks.
In the above-described embodiments, described cylindrical member can also be segmentation structure, by a plurality of cylindrical members unit, be formed by connecting, connected mode is specifically as follows and is threaded, clamping or flange connect, when the length of anchor pole is longer, while adopting monolithic construction to be difficult for processing and transportation, can adopt this kind of scheme.
Embodiment bis-as self-feeding anchor pile of the present invention, as shown in Figs. 8 to 11, be that with embodiment mono-difference described cylindrical member 1 inside is also provided with core bar 4, described core bar 4 is separated with cylindrical member 1 and be fixedly connected with by locator 5, described locator 5 is provided with fluid through-hole 51, forms the fluid passage 6 that total length connects between described cylindrical member 1 and core bar 4.Described core bar 4 is main stressed member when anchoring.
Because stratum or underground water always have light or heavy corrosivity to concrete and anchor rod body, so durability and the bearing capacity of permanent anchoring, anti-floating or resistance to plucking engineering are difficult to effectively be ensured, need to carry out preservative treatment to anchor pole, the anticorrosion of anchor pole is a hard nut to crack.
Anchor pole of the present invention, when creeping into, is carried drilling fluid by described fluid passage 6 to drill bit 2; After having holed by described fluid passage 6 to the interior slip casting of anchor hole 9, can guarantee that grouting serous fluid, from pulp bottom anchor pole, can displace the mud of anchor hole 9 bottoms completely, thereby guarantee the construction quality of anchor hole 9.After anchor pole has crept into, can be from cylindrical member 1 upper end to the inner grout injection of cylindrical member 1, after solidifying, described cement paste forms grouting soil 7 in cylindrical member 1 inside, externally form slip casting inclusion enclave 8, 7 pairs of core bars of grouting soil 4 form omnidistance seal protection, cylindrical member 1 can prevent that with grouting soil 7 underground water and soil and core bar 4 from directly contacting the electrochemical corrosion to core bar 4 to the stray electrical current in the chemical attack of core bar 4 and underground medium, and the grouting soil between cylindrical member 1 and core bar 47 is triaxial stress state, slip casting inclusion enclave force-bearing situation is compared to existing technology greatly improved, intensity is higher, be difficult for producing crack, thereby greatly extended the military service phase of anchor pole.
In the present embodiment, as shown in figure 11, described locator 5 is circular, the internal diameter of the external diameter of described locator 5 and cylindrical member 1 is suitable, described locator 5 is provided with for the fixing locating hole 52 of core bar 4, described locating hole 52 is generally through hole, and the locating hole 52 of part locator 5 can be also blind hole.In addition, described locator 5 can also be polygonal support, described polygonal support is provided with for the fixing locating hole 52 of core bar 4, as shown in figure 12, described locator 5 is A-frame, certain described locator 5 also can, for polygonal supports such as in-line support (two jiaos of supports) or four jiaos of supports, all can play the identical effect that is fixedly connected with.
In the present invention, described locator 5 can be threaded connection, the various ways such as clamping or flange connection is fixed on core bar or cylindrical member 1.
When described core bar 4 is positioned at the center of cylindrical member 1, the antiseptic effect of cylindrical member 1 and grouting soil 7 is best, in order to make the stably center in cylindrical member 1 of described core bar 4, locator 5 of the present invention should be at least two, and be preferably positioned at the two ends up and down of cylindrical member 1, when cylindrical member 1 and core bar 2 length are when longer, a plurality of locators 5 can also be set equably at the middle part of cylindrical member 1, now locator 5 has the effect of centering device simultaneously.
Embodiment tri-as self-feeding anchor pile of the present invention, as shown in FIG. 13 to 15, be with embodiment bis-differences that described drill bit 2 sides are provided with laterally or fluid hole 21 radially, described fluid hole 21 is circle hole shape or linear high speed fluid hole, when the slurries with certain pressure penetrate from described fluid hole 21, can play percussion to the hole wall of anchor hole 9, thereby realize hole expansion function, the enlarged footing anchor pole of can constructing, enlarged footing anchor pole reduces to have obvious advantage aspect displacement improving uplift resistance.
In embodiment bis-and three, described cylindrical member also can adopt the segmentation structure being formed by connecting by a plurality of cylindrical members unit.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a self-feeding anchor pile, comprises the cylindrical member of hollow, and described cylindrical member one end is provided with drill bit, it is characterized in that, longitudinal separation is provided with a plurality of power adapter that are connected with drill power head outside described cylindrical member.
2. self-feeding anchor pile according to claim 1, it is characterized in that, described cylindrical member inside is also provided with core bar, described core bar is separated with cylindrical member and be fixedly connected with by locator, described locator is provided with fluid through-hole, forms the fluid passage that total length connects between described cylindrical member and core bar.
3. self-feeding anchor pile according to claim 1, is characterized in that, described drill bit side is also provided with laterally or fluid hole radially.
4. self-feeding anchor pile according to claim 1, is characterized in that, described power adapter is flat mouth, arc shaped tile mouth or tooth mouth power adapter.
5. self-feeding anchor pile according to claim 1, is characterized in that, described power adapter is fixed by welding on cylindrical member.
6. self-feeding anchor pile according to claim 2, is characterized in that, described locator is circular, and the external diameter of described locator and the internal diameter of cylindrical member are suitable, and described locator is provided with for the fixing locating hole of core bar; Or described locator is polygonal support, described polygonal support is provided with for the fixing locating hole of core bar.
7. self-feeding anchor pile according to claim 2, is characterized in that, described locator is threaded connection, clamping or flange are fastened on core bar or cylindrical member.
8. self-feeding anchor pile according to claim 2, is characterized in that, described locator is at least two, and described locator makes core bar be positioned at the center of cylindrical member.
9. according to the self-feeding anchor pile described in claim 1 to 8 any one, it is characterized in that, described cylindrical member is segmentation structure, by a plurality of cylindrical members unit, is formed by connecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515716.0A CN103526756A (en) | 2013-10-25 | 2013-10-25 | Self-propelled anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515716.0A CN103526756A (en) | 2013-10-25 | 2013-10-25 | Self-propelled anchor rod |
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| Publication Number | Publication Date |
|---|---|
| CN103526756A true CN103526756A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310515716.0A Pending CN103526756A (en) | 2013-10-25 | 2013-10-25 | Self-propelled anchor rod |
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| CN (1) | CN103526756A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723060A (en) * | 2019-02-28 | 2019-05-07 | 兰州理工大学 | A kind of Manual mechanical recoverable anchor rod and its recovery method |
-
2013
- 2013-10-25 CN CN201310515716.0A patent/CN103526756A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723060A (en) * | 2019-02-28 | 2019-05-07 | 兰州理工大学 | A kind of Manual mechanical recoverable anchor rod and its recovery method |
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| PB01 | Publication | ||
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Application publication date: 20140122 |