CN203346876U - Drill rod inner hole embedded stirring type anchor pile - Google Patents
Drill rod inner hole embedded stirring type anchor pile Download PDFInfo
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- CN203346876U CN203346876U CN 201320293349 CN201320293349U CN203346876U CN 203346876 U CN203346876 U CN 203346876U CN 201320293349 CN201320293349 CN 201320293349 CN 201320293349 U CN201320293349 U CN 201320293349U CN 203346876 U CN203346876 U CN 203346876U
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- rod
- anchor pole
- plug
- stirring type
- cement
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Abstract
The utility model discloses a drill rod inner hole embedded stirring type anchor pile. The drill rod inner hole embedded stirring type anchor pile comprises an anchor rod inserted in a stratum; the anchor rod is combined with cemented soil which wraps the periphery of the anchor rod, is formed by cement paste or cement powder pouring and stirring; the anchor rod is made of reinforcing steel bars which are easy to get and low in cost. When construction is carried out, soil is firstly stirred in the screw-in process of a drill rod to ensure that hardening agents like the cement paste or the cement powder are fully mixed with the soil; then, an end cap is pushed to the interior of the stratum in the screw-in process of the drill rod, when the drill rod advances in place, the anchor rod is inserted into the drill rod, the drill rod is pulled out, the anchor rod and the end cap are reserved in the stratum, and the anchor rod is combined with the cement soil which wraps the periphery of the anchor rod and is formed by cement paste or cement powder pouring and stirring through the drill rod to form the drill rod inner hole embedded stirring-type anchor pile jointly. Therefore, construction difficulties caused by hole collapse in hole forming, anchor rod installing and pouring processes of the anchor rod with a formed hole are voided, and the next construction can be carried out after the drill rod is pulled out.
Description
Technical field
The utility model relates to soil excavation, stability of slope and underground structure anti-floating resistance to plucking technical field, relates in particular to a kind of drill pipe bore for bracing of foundation pit, slope reinforcement and underground structure resistance to plucking anti-floating and implants the stirring type anchoring pile.
Background technology
Plate brad supporting, bolt support are widely used in Foundation Pit Support Engineering and stability of slope engineering, the plate brad supporting cost is low, easy construction, but the length of soil nailing and stake diameter are less, and the equal power of resistance to plucking is little, is only applicable to general stratum, so the scope of application is less, often can not meet design requirement, and this kind of soil nailing can not well to apply prestressing force, uplift resistance not strong yet, can not well play a role; And the equal power of the length of anchor pole, diameter and resistance to plucking all is greater than soil nailing, but its cost is higher, and construction need be through first boring, after insert metal material, then slip casting two procedures, can not disposablely complete, and improved cost; And because sandy gravel is loose media, the pore-forming difficulty, generally adopt full-sleeve pore-forming mode pore-forming in sand pebble layer, the pore-forming anchor pole is easy collapse hole in pore-forming, skyhook, slip casting process, so difficulty of construction is high, and cost is high.
The utility model content
The utility model is for above-mentioned the deficiencies in the prior art, provides that a kind of operation is simple, cost is low and can apply prestressed drill pipe bore implants the stirring type anchoring pile.
The technical solution of the utility model is achieved in that
A kind of drill pipe bore is implanted the stirring type anchoring pile, comprises the anchor pole be plugged on the stratum in, anchor pole with the notes that are wrapped in the anchor pole surrounding cement paste or cement flour and through the cement-soil of the stirring formation formation anchoring pile that combines.
As preferably, described anchor pole is reinforcing bar.Anchor pole adopts reinforcing bar, with low cost, the convenience of drawing materials.
As preferably, the head of the anchor pole in stratum be provided with one in advance drilled masthead enter and be retained in the plug in stratum.Adopt in advance plug that the drilling rod front end is blocked, plug prevents that soil from entering drilling rod and stopping up the spray orifice of drilling rod, rotation limit, drilling rod limit water-spray type slurry, other curing compound such as cement flour, the stirring vane of drilling rod front end stirs cement paste or cement flour and the soil body, form the cement-soil drill pipe bore and implant the stirring type anchoring pile, drilling rod pierces and puts in place, anchor pole is inserted by drilling rod and go deep into until eject plug, and continue to spray injected water mud or cement flour while rotary drill rod by drilling rod in the soil body, by drilling rod front end stirring vane, cement paste or cement flour and the soil body are fully stirred to the formation cement-soil, and drilling rod is exited backward until all extract simultaneously, only stay anchor pole and plug in stratum, drilling rod is proceeded operation next time.
As preferably, the head of described anchor pole offsets and contacts with plug.
Connect for convenience and that anchor pole is connected with plug is more firm, as preferably, described anchor pole is threaded with plug.
As preferably, the plug cross section is circular, on an end periphery of plug, is provided with the flange extended radially outwardly.The effect of plug is to prevent that the soil body from entering the obstruction injected hole from the drilling rod front end, and flange has played the limit stops effect, plug has been limited in to the position of drilling rod front opening, and the diameter of flange can surpass the drilling rod external diameter, increases bearing area; After piercing stratum, convenient by plug and drilling rod disengagement again, and when anchor pole is threaded with plug, plug and flange integral body have the surface area that is greater than the anchor pole cross-sectional area, thereby played, increase certain resistance to plucking drawing-resistant function.
As preferably, at plug, this end of flange is set with drill bit.Thereby it is faster to make plug pierce soil.
As preferably, described anchor pole is divided into the free segment body of rod and the anchoring section body of rod, on the free segment body of rod, is enclosed with sleeve pipe, and the two ends of sleeve pipe are connected with free segment body of rod flexible sealing, and leave gap between sleeve pipe and the free segment body of rod.The existence of sleeve pipe makes the free segment body of rod keep free state, makes the side friction of the free segment body of rod transfer to the anchoring section body of rod, thereby can further improve the stability on the stratum such as side slope.
As preferably, on the free segment body of rod, be coated with anti-friction agent.Thereby can guarantee that the free segment body of rod is in free state.
As preferably, be filled with anti-friction agent in sleeve pipe.Filled anti-friction agent in sleeve pipe, guaranteed enough degree of lubrication, made the free segment body of rod keep state fully freely.
Adopted the principle of the present utility model of technique scheme and the advantage had to be:
1, the utility model is applicable to all stratum, particularly sand pebble layer except basement rock, and cement paste or cement flour are combined the cement-soil formed and can be called the cement-soil anchoring body again with the soil body; And the utility model operation is simple, and cost is low, only stay anchor pole in stratum, can repeat whitewashing when forming the cement-soil anchor construction of anchoring pile and stir multipass, thereby improve the ratio of cement paste or the cement flour displacement soil body, thereby improve the intensity of anchoring pile, and then improve the uplift resistance of anchor pole;
2, can be used as vertical resistance to plucking anti-floating pile, the scope of application has obtained further raising;
3, job practices of the present utility model is to adopt the process of drilling rod precession to stir soil, makes the curing compound such as cement paste or cement flour fully mix with soil, and again plug is pushed in stratum in the time of the drilling rod precession, after drilling rod is advanced and is put in place, insert again anchor pole in drilling rod, again drilling rod is extracted, the relation just contacted with plug due to drilling rod, the previous thrust of drilling rod and the resistance of soil of just leaning on makes drilling rod and plug keep relatively-stationary position relationship, so, can rely on anchor pole that plug is ejected outside drilling rod, drilling rod can be extracted easily, and anchor pole and plug are stayed in stratum, anchor pole and be wrapped in the anchor pole surrounding notes cement paste or cement flour and cement-soil that form after drilling rod stirs implant the stirring type anchoring pile in conjunction with the common column drill pipe bore that forms, thereby avoid the pore-forming anchor pole constructional difficulties that collapse hole causes in pore-forming, skyhook, slip casting process.Drilling rod can be constructed again after extracting next time.
4, anchor pole inserts and can guarantee the center of anchor pole at drill pipe bore implantation stirring type anchoring pile by drill pipe bore, saves pore-forming anchor pole in the past and need to install on anchor pole medium-height trestle in cement-soil anchoring body center for guaranteeing anchor pole; And the cement-soil anchoring body that can be same anchor pole repeatedly repeats the whitewashing stirring, thereby improve the intensity of anchoring body, and can realize different cement mixing content constructions at the diverse location of same anchor as required, thereby save cement consumption, save the engineering time, the saving construction cost in the situation that guarantee same uplift resistance.
5, reinforced anchor bolt can also apply prestressing force by bolt by end of anchor rod, adding screw thread, also can apply prestressing force by common mode, as hydraulic jack, or does not apply prestressing force and can do common bolt application, has increased the scope of application of anchor pole.
The accompanying drawing explanation
The fractionation structural representation that Fig. 1 is plug and drilling rod in embodiment 1;
The assembling drawing that Fig. 2 is plug and drilling rod in embodiment 1;
The A section enlarged drawing that Fig. 3 is Fig. 1;
The A section enlarged drawing that Fig. 4 is Fig. 2;
The structural representation that Fig. 5 is plug in embodiment 1;
The A that Fig. 6 is Fig. 5 is to view;
Fig. 7 is working state schematic representation when in embodiment 1, drilling rod heads on plug screw-in stratum;
Fig. 8 is after in embodiment 1, drilling rod pierces the soil body, inserts the view of anchor pole in drilling rod;
Fig. 9 is after in embodiment 1, anchor pole is connected with plug and puts in place, view when Kelly Stubb is gone out to soil;
Figure 10 be in embodiment 1 plug and anchor pole stay in stratum and with annotated cement paste or cement flour and through stirring the common view in conjunction with forming drill pipe bore and implant the stirring type anchoring pile of the cement-soil formed;
The A section enlarged drawing that Figure 11 is Figure 10;
Figure 12 is that in embodiment 2, plug and anchor pole are stayed in stratum, and anchor pole and annotated cement paste or cement flour and through the common view in conjunction with forming drill pipe bore and implant the stirring type anchoring pile of the cement-soil stirred;
The A section enlarged drawing that Figure 13 is Figure 12;
The structural representation that Figure 14 is plug in embodiment 2.
The specific embodiment
The specific embodiment of the present utility model is as follows:
Embodiment 1: a kind of drill pipe bore is implanted the stirring type anchoring pile, as shown in Figure 10,11, comprise the anchor pole 2 be plugged in stratum 3, stratum 3 is all stratum except basement rock, the head of anchor pole 2 be provided with one in advance drilled masthead enter and finally be retained in the plug 1 in stratum, plug 1, anchor pole 2 and be wrapped in that anchor pole 2 notes are crossed cement paste or cement flour and stir through drilling rod the cement-soil 4 formed and combine and form drill pipe bore and implant stirring type anchoring pile 14.
Specifically, described anchor pole 2 adopts reinforcing bar, as shown in Figure 5,6, described plug 1 is disc-shaped, be provided with the flange 6 extended radially outwardly on an end periphery of plug 1, flange 6 is circular, in the end face center of the other end of plug 1, along the plug axial direction, is provided with a screw 7, head at anchor pole 2 is provided with external screw thread, and anchor pole 2 is threaded with plug 1.This end that according to actual needs, can also flange be set at plug arranges the drill bit (not shown).
As shown in figure 10, described anchor pole 2 is divided into the free segment body of rod 8 and the anchoring section body of rod 9, be coated with anti-friction agent and wrap up sleeve pipe 10 on the free segment body of rod 8, sleeve pipe 10 two ends flexible sealings are fixed on the free segment body of rod 8, and 8 of sleeve pipe 10 and the free segment bodies of rod leave gap.In addition, the two ends flexible sealing of sleeve pipe 10 can also be fixed on the free segment body of rod 8, and at the interior filling anti-friction agent of sleeve pipe 10.Described anti-friction agent can adopt lubrication oil.
A kind of drill pipe bore is implanted the anchoring process of stirring type anchoring pile, comprises the steps:
(1), get a hollow drilling rod 11, as shown in Fig. 1～4, at the front opening place of drilling rod 11 installing plug 1, and drilling rod 11 front ends and plug 1 are against to the surface of stratum place, now plug 1 injects drilling rod 11 front ends, and the external diameter of plug 1 is just identical with the internal diameter of drilling rod 11, and flange 6 offsets with the end face at drilling rod 11 front opening places; Then drilling rod 11 rear ends are connected to the unit head (not shown) of rigs, drilling rod 11 front portions are provided with stirring vane 12, and at the spray orifice 13 near being provided with on the bar wall of drilling rod 11 front ends in order to gunite curing compound such as (or) cement flours; The stirring vane 12 of drilling rod front end can adopt the various forms of blades such as sheet, shaft-like, strip, helical form.
(2), start rig, unit head drives the drilling rod rotation, as shown in Figure 7, makes drilling rod 11 head on plug 1 and creeps into gradually the soil body from earth's surface;
(3), when creeping into, adopt spouting plant or powder spraying apparatus to pass through drilling rod 11 to soil body jet cement powder or cement paste, and by stirring vane 12, the soil body of cement paste or cement flour and drilling rod periphery is carried out to uniform stirring, make cement paste or cement flour and the soil body fully mix to improve the intensity of the soil body, form cement-soil;
(4), after drilling rod 11 pierces the soil body fully, stop the curing compound such as injected water mud or cement flour, as shown in Fig. 8,10, will anchor pole 2 insert in drilling rods and, gradually deeply until contact plug 1, finally anchor pole 2 be threaded with plug 1;
At this, it is to be noted, described anchor pole 2 is divided into the free segment body of rod 8 and the anchoring section body of rod 9, and before anchor pole 2 inserts drilling rods 11, elder generation is sheathed and sealing fixed sleeving 10 on the free segment body of rod 8, and make sleeve pipe 10 and 8 of the free segment bodies of rod leave gap, and then anchor pole 2 is inserted in drilling rod.
Again or, also first sheathed sleeve pipe 10 on the free segment body of rod 8, and make sleeve pipe 10 and 8 of the free segment bodies of rod leave gap, mode by sleeve pipe 10 lower ends by flexible sealing is fixed on the free segment body of rod 8, for example can tie up by iron wire, pour into anti-friction agents from sleeve pipe 10 upper ends again, and by the mode of flexible sealing, sleeve pipe 10 is fixed on the free segment body of rod 8, and then anchor pole 2 is inserted in drilling rods 11.
(5), as shown in Fig. 9,10, drilling rod 11 is extracted, only stay anchor pole 2 with plug 1 in stratum, plug 1, anchor pole 2 and be wrapped in the anchor pole surrounding notes the curing compound such as cement paste or cement flour implant stirring type anchoring pile 14 through the common drill pipe bore that forms of the cement-soil 4 stirred.
Embodiment 2: the present embodiment is comparatively commonly use in practical application a kind of, specifically, the present embodiment difference from Example 1 is, a kind of drill pipe bore is implanted the stirring type anchoring pile, as Figure 12, shown in 13, comprise the anchor pole 2 be plugged in stratum 3, the head of anchor pole 2 be provided with one in advance drilled masthead enter and be retained in the plug 1 in stratum, anchor pole 2 is only to offset to contact with plug 1, as shown in figure 14, do not offer screw on plug 1, do not take any mode that both are connected yet, anchor pole 2 and be wrapped in that anchor pole 2 notes are crossed cement paste or cement flour and combine and form drill pipe bore and implant stirring type anchoring pile 14 through the cement-soil 4 that stirring vane stir to form.
In like manner, the present embodiment drill pipe bore is implanted the anchoring process of stirring type anchoring pile and the difference of embodiment 1 is, after drilling rod 11 pierces the soil body fully, stop injecting cement flour or cement paste, anchor pole 2 is inserted in drilling rod and gradually and gos deep into until contact plug 1, by anchor pole 2, plug 1 is ejected to drilling rod, again drilling rod 11 is extracted, only stay anchor pole 2 with plug 1 in stratum, anchor pole 2 and be wrapped in that anchor pole was annotated cement paste or cement flour and combine and form drill pipe bore and implant stirring type anchoring pile 14 through stirring the cement-soil 4 formed.
In the present embodiment, the effect of plug 1 is only to prevent that the soil body from entering drilling rod from the drilling rod front end and stopping up spray orifice 13, and flange 6 has played the limit stops effect, plug has been limited in to the position of drilling rod front opening; After piercing soil, convenient by plug and drilling rod disengagement again.
Claims (10)
1. a drill pipe bore is implanted the stirring type anchoring pile, it is characterized in that: comprise the anchor pole be plugged on the stratum in, anchor pole with the notes that are wrapped in the anchor pole surrounding cement paste or cement flour and through the cement-soil of the stirring formation formation anchoring pile that combines.
2. a kind of drill pipe bore according to claim 1 is implanted the stirring type anchoring pile, and it is characterized in that: described anchor pole is reinforcing bar.
3. a kind of drill pipe bore according to claim 1 is implanted the stirring type anchoring pile, it is characterized in that: the head of the anchor pole in stratum be provided with one in advance drilled masthead enter and be retained in the plug in stratum.
4. a kind of drill pipe bore according to claim 3 is implanted the stirring type anchoring pile, and it is characterized in that: the head of described anchor pole offsets and contacts with plug.
5. a kind of drill pipe bore according to claim 3 is implanted the stirring type anchoring pile, and it is characterized in that: described anchor pole is threaded with plug.
6. a kind of drill pipe bore according to claim 3 is implanted the stirring type anchoring pile, it is characterized in that: the plug cross section, for circular, is provided with the flange extended radially outwardly on an end periphery of plug.
7. a kind of drill pipe bore according to claim 6 is implanted the stirring type anchoring pile, it is characterized in that: at plug, this end of flange is set with drill bit.
8. a kind of drill pipe bore according to claim 1 is implanted the stirring type anchoring pile, it is characterized in that: described anchor pole is divided into the free segment body of rod and the anchoring section body of rod, be enclosed with sleeve pipe on the free segment body of rod, the two ends of sleeve pipe are connected with free segment body of rod flexible sealing, and leave gap between sleeve pipe and the free segment body of rod.
9. a kind of drill pipe bore according to claim 8 is implanted the stirring type anchoring pile, it is characterized in that: on the free segment body of rod, be coated with anti-friction agent.
10. a kind of drill pipe bore according to claim 8 is implanted the stirring type anchoring pile, it is characterized in that: be filled with anti-friction agent in sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320293349 CN203346876U (en) | 2013-05-24 | 2013-05-24 | Drill rod inner hole embedded stirring type anchor pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320293349 CN203346876U (en) | 2013-05-24 | 2013-05-24 | Drill rod inner hole embedded stirring type anchor pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203346876U true CN203346876U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320293349 Expired - Fee Related CN203346876U (en) | 2013-05-24 | 2013-05-24 | Drill rod inner hole embedded stirring type anchor pile |
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| Country | Link |
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| CN (1) | CN203346876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306280A (en) * | 2013-05-24 | 2013-09-18 | 郭财宝 | Stirring anchor pile implanted in inner hole of drill rod and anchoring method |
-
2013
- 2013-05-24 CN CN 201320293349 patent/CN203346876U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306280A (en) * | 2013-05-24 | 2013-09-18 | 郭财宝 | Stirring anchor pile implanted in inner hole of drill rod and anchoring method |
| CN103306280B (en) * | 2013-05-24 | 2016-06-01 | 郭财宝 | A kind of drill pipe bore implants stirring-type anchoring pile and anchoring process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20131218 |