CN203114221U - Soil falling-stopping device used for rotary excavating pile hole - Google Patents
Soil falling-stopping device used for rotary excavating pile hole Download PDFInfo
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- CN203114221U CN203114221U CN 201320113681 CN201320113681U CN203114221U CN 203114221 U CN203114221 U CN 203114221U CN 201320113681 CN201320113681 CN 201320113681 CN 201320113681 U CN201320113681 U CN 201320113681U CN 203114221 U CN203114221 U CN 203114221U
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Abstract
The utility model discloses a soil falling-stopping device used for a rotary excavating pile hole. The soil falling-stopping device is matched with a rotary excavating pile shell structure provided with a straight tube section in use, the soil falling-stopping device is of an annular structure, and the inner edge of the annular structure is attached to the straight tube section of a rotary excavating pile shell and adapted to a straight tube in shape. The soil falling-stopping device is arranged on the outer wall of the straight tube section of the rotary excavating pile shell in the circumferential direction, an isolation strip is formed to support loosening soil, and the loosening soil on a loosening oil layer on the upper portion of the rotary excavating pile hole is prevented from dropping into the bottom of the rotary excavating pile hole to cause risks on the quality of a foundation pile; and the inner edge of the soil falling-stopping device is fixedly connected with the outer wall of the straight tube section of the rotary excavating pile shell, and the soil falling-stopping device has the advantages of being ingenious in conception, simple in structure, low in cost, convenient to use and the like.
Description
Technical field
The utility model relates to a kind of be used to revolving the long-pending native falling stop device that digs a hole, belongs to the foundation pile member field of building.
Background technology
In the foundation pile construction process of highway, railway, bridge and heavy construction, foundation pile construction method revolving from traditional hand digging to machinery dug pile driving construction, experienced the process of continuous technological innovation.Hand digging is adopted in the conventional piles hole, in the bottom of hand excavated pile enlarged, be called the manually digging hole expanded bore pile, this class stake does not need large-scale plant because its stress performance is reliable, and construction manipulation process is simple, can directly check a bed rock soil layer situation, the bearing capacity of single pile height, non-environmental-pollution is so use comparatively general in various places.But, there is following deficiency in such hole: labour intensity is bigger in the borehole, the single pile speed of application is slower, especially safety is relatively poor, dangerous situations such as landslide appear easily, when the gas that the humus deposits yields may be arranged in the soil layer spilt in the hole, bottom, stake hole also can deposit a large amount of toxic gases, brings potential safety hazard to construction safety.
Further, in order to overcome above-mentioned deficiency, revolve and dig a technology and find broad application, what is called is revolved and is dug stake, namely by the stake type of rotary drilling rig construction, the full name rotary digging drilling hole bored concrete pile, be called for short to revolve on the engineering and dig stake, owing to use mechanical work, less demanding to workman's number, can save very big labour cost, so be widely used in the foundation pile construction of highway, railway, bridge and heavy construction.Adopting the rotary drilling rig pore-forming, at first is to turn round broken ground by the bucket formula drill bit that the bottom has a valve, and in the drilling bucket of directly it being packed into, and then by rig lifting appliance and telescopic drill rod drilling bucket is proposed to unload outside the hole soil, move in circles like this, constantly fetch earth and unload soil, until drilling to completion.For loose caving ground, or have underground water to distribute, the hole wall instability must adopt the static mud protecting wall drilling process, drops into slurry coat method in the hole or stabilizing solution is carried out retaining wall.
But, the existing technology of digging of revolving exists following drawback (especially to revolve and dig a top, hole and be the layer that loosens the soil, the bottom is lithosphere): one, when upper strata, stake hole has backfill etc. and loosens the soil layer, dig when carrying out concreting in the hole revolving, along with the vibrations in the process of building, the part in the layer that loosens the soil can be fallen in the concrete pile body, brings hidden danger for the quality of stake; Its two, can't remove and revolve a soft formation that digs stake bottom, make it to reach engineering specification (bottom, stake hole soft formation thickness is less than 5cm).
Dig the drawback that stake exists in conjunction with revolving, the inventor has proposed preferable solution, that is: revolve dig a hole forming after, in the bottom reinforcing cage is set, the length of reinforcing cage is less than the thickness of lithosphere, reinforcing cage top arranges some reinforced concrete pipes, and still, this scheme can not prevent from revolving digs a top, hole the loosening the soil of layer of loosening the soil and fall into bottom, hole.
The utility model content
Above-mentioned drawback at the prior art existence, the utility model solves to revolve and digs in the technology, revolve the top of digging in the hole layer that loosens the soil and loosen the soil to fall into easily to revolve and dig bottom, hole, to the problem that pile quality causes a hidden trouble, provide a kind of be used to revolving the long-pending native falling stop device that digs a hole.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of be used to revolving the long-pending native falling stop device that digs a hole, its cooperation has revolving of straight length and digs the use of stake stake shell structure, it is characterized in that, should long-pending native falling stop device be circulus, the inner edge of described circulus be attached to revolve to dig on the stake stake shell straight length and with described straight tube shape and adapts.
Further, described long-pending native falling stop device is ring discoid or annular frustum structure.
Further, but described long-pending native falling stop device is the folding circulus.
Compared to existing technology, the utlity model has following beneficial effect:
1, the utility model is skillfully constructed, designs uniqueness, innovation is to cooperate revolving of straight length to dig stake stake shell structure and uses, by revolving the long-pending native falling stop device that the straight length outer wall that digs stake stake shell is circumferentially with circulus, described long-pending native falling stop off-site with revolve the shape of digging a hole and size is consistent, seamless connection between implement device and the hole wall, what prevent from loosening the soil drops, and has better seal and ends the soil effect well.
2, described long-pending native falling stop device is ring discoid or annular frustum structure, and it has adaptive capacity preferably; Even there is off-centre in the stake hole, when revising by the stake shell, the gap length between stake shell and the hole wall does not wait, and this device still can be suitable for.
3, but described long-pending native falling stop device is the folding circulus, flexible and convenient to use, in needs, rely on gravity or spring tension or hyperbar, long-pending native falling stop device forms the isolation strip and will loosen the soil and hold, and avoids revolving digging a middle and upper part, the hole layer that loosens the soil and loosening the soil to fall into to revolve and dig a bottom, hole pile quality is caused a hidden trouble.
4, described long-pending native falling stop device is designed to annular seal air bag structure, and the seamless connection by between air bag (annular seal air bag) energy implement device and the hole wall prevents that the soil body from dropping; And, by the pressure by augmented airbag, increase frictional force, thereby realize stronger supporting capacity; Have simple in structure, the characteristics that cost is low, easy to use.
5, described long-pending native falling stop device is designed to the skeleton of falling the umbrella, is rotatably connected by skeleton and stake shell, has the structure uniqueness, and the characteristics that open conveniently, supporting capacity are strong solve the long-pending soil of anti-locking apparatus too much and the problem that lost efficacy.
Description of drawings
Fig. 1 is the structural representation that the utility model is used to revolve the long-pending native falling stop device embodiment 1 that digs a hole, and this figure medi-spring and safety rope be inboard to be connected that to revolve a position of digging a stake shell straight length be circular boop.
Fig. 2 is the structural representation that the utility model is used to revolve the long-pending native falling stop device embodiment 1 that digs a hole, and this figure medi-spring and safety rope be inboard to be connected that to revolve a position of digging a stake shell straight length be built-in fitting.
Fig. 3 is the annular supporting plate schematic diagram that has added the flexible protective material on the basis of Fig. 1.
Fig. 4 is the profile that the utility model is used to revolve the long-pending native falling stop device embodiment 2 that digs a hole, and this there is shown air bag is connected usefulness with straight length connecting band.
Fig. 5 is the structural representation that the utility model is used to revolve the long-pending native falling stop device embodiment 2 that digs a hole.
Fig. 6 is that revolving of the utility model cooperation dug a stake stake shell structure, and this structure has been installed the long-pending native falling stop device among Fig. 1.
Fig. 7 is K place enlarged drawing among Fig. 6.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
Embodiment 1:(is referring to Fig. 1-Fig. 3), a kind of be used to revolving the long-pending native falling stop device that digs a hole, should long-pending native falling stop device be circulus, the inner edge of described circulus is attached to revolve to dig on the stake stake shell straight length and with described straight tube shape and adapts, but described long-pending native falling stop device is the folding circulus of falling the beveled structure, the outside of described circulus open mode with revolve the shape of digging a hole and size is consistent.
Described beveled structure is loop tray, described pallet circumferentially is located at and is revolved the straight length outer wall that digs stake stake shell, formed by skeleton 211 and supporting plate 212, described supporting plate 212 circumferentially is located at and is revolved the straight length outer wall that digs stake stake shell, described skeleton 211 is located at the below of annular supporting plate 212 by some rod-like element annular arrays, annular pallet 212 is supported, one end of described skeleton 211 with revolve a straight length outer wall that digs stake stake shell and be connected by the part that is rotatably connected, the other end is fixedlyed connected with supporting plate 212 belows, and part realization supporting plate 212 is opened and folding by being rotatably connected.
Wherein, the described part that is rotatably connected is by erection loop, some articulated elementss, some springs 213 and some safety ropes 214 are formed, described erection loop comprises being located at from top to bottom and revolves first of the straight length outer wall that digs stake stake shell, the second and the 3rd erection loop, each rod-like element of described skeleton is inboard hinged by described articulated elements and second erection loop, each spring is located at the loop tray below, each rod-like element middle part/outside of one end and described skeleton is connected, the other end is connected with the 3rd erection loop, each safety rope is arranged in first erection loop and each rod-like element middle part/outside of an end and described skeleton is connected, the other end is located at the straight length entrance, and (other end is located at straight length and is deviated from the reinforcing cage end, the safety rope other end is used for the manual adjustment loop tray and opens size, safety rope length is wanted long enough, be convenient to revolve and dig a stake stake shell structure and sink to a Kong Zhonghou, the constructor can operate the safety rope upper end long-pending native falling stop device is regulated, it is after loop tray is launched that loop tray is opened size, is used for catching the size of native accommodation space).
Annular supporting plate 212 is that the flexible protective material of one of canvas, rubber or plastics constitutes.
Particularly, this long-pending native falling stop device is " umbrella " form.This device invests on the prefabricated straight length, and skeleton can adopt reinforcing bar, shaped steel, and the skeleton hinged inside is (be hinged on second erection loop by articulated elements, second erection loop is fixed on the straight length periphery) on the straight length, and skeleton can rotate up and down around the hinged place.Lay the flexible protective material between each root skeleton, the flexible protective material has intensity height, flexible good, easy characteristics such as folding, good toughness, as canvas, plastics, rubber or other materials etc.The skeleton below arranges some springs that are in tilted layout, each spring one end (upper end) is fixed in the skeleton outside or middle part, the other end (lower end) and straight length affixed (achieving a fixed connection by the 3rd erection loop and straight length), spring tightens up (nature), and skeleton is together opened with regard to related flexible protective material.The skeleton top arranges some safety ropes, the safety rope preferred arrangement is that safety rope one end (lower end) is connected in the skeleton outside or middle part, safety rope is skewed then and is connected (passing second erection loop that is arranged on the straight length periphery) with straight length and further extends perpendicularly to the straight length entrance, when skeleton draws in (this moment, spring was in extended configuration), safety rope is lax inoperative, when skeleton is opened, safety rope stretching tensioning, by regulating the length of safety rope, the scope that the control skeleton is opened, simultaneously when sidewall collapses hole or backfill, prevent that skeleton is hit and bends, the fracture and lost efficacy.Spring can be done a circular boop (i.e. a kind of implementation of first, second, third erection loop) with the inboard position that is connected straight length of safety rope, spring and safety rope are connected on the circular boop, circular boop is enclosed within on the straight length again, and convenient long-pending native falling stop device is made to refill separately and fitted on the straight length; Also can be when prefabricated straight length set aside pre-embedded spare (the another kind of implementation of first, second, third erection loop), directly spring and safety rope are connected on the built-in fitting.It is as follows to amass native falling stop device mode of occupation: in advance the related flexible protective material of skeleton is opened → according to revolving borehole footpath and straight length diameter, adjust position that spring connects and make spring length, pulling force and elongation are suitable, adjust safety rope length, make skeleton open and straight length between angle suitably → skeleton is drawn in, lift the aperture with the related long-pending native falling stop device of colligation → straight lengths such as rope or steel wire, when long-pending native falling stop device has entered the aperture, remove colligation rope or steel wire, make the related flexible protective material of skeleton open, continuation is transferred to the related long-pending native falling stop device of straight length at the bottom of the hole; Perhaps the related long-pending native falling stop device lifting of straight length arrives designated depth, the more related flexible protective material of skeleton is opened, and continuation is transferred to the related long-pending native falling stop device of straight length at the bottom of the hole.This embodiment is rotatably connected by skeleton and stake shell, has the structure uniqueness, and the characteristics that open conveniently, supporting capacity are strong solve the long-pending soil of anti-locking apparatus too much and the problem that lost efficacy; And flexible and convenient to use, in needs, rely on gravity or spring tension or hyperbar, long-pending native falling stop device forms the isolation strip and will loosen the soil and hold, and avoids revolving digging a middle and upper part, the hole layer that loosens the soil and loosening the soil to fall into to revolve and dig a bottom, hole pile quality is caused a hidden trouble.
Embodiment 2:(is referring to Fig. 4-Fig. 5), but this long-pending native falling stop device also is the folding circulus, and long-pending native falling stop device 2 comprises annular seal air bag 221, described annular seal air bag 221 inflated condition with revolve the shape of digging a hole and big or small consistent.This air bag is inboard to be connected with straight length, and (interior week of air bag is connected with the connecting band that defaults in the straight length periphery, this connecting band is circular boop, as iron ring), described air bag is provided with the high pressure valve, and the high pressure valve cooperates air pump toward the annular seal inflatable bag inflating by high-pressure air pipe 222.
Particularly, this device is made of airtight air bag, and airtight air bag is placed on the straight length, firmly is connected with straight length.After air bag is full of pressure-air and expands, the space between filling straight length outer wall and the hole wall, by the frictional force between air bag and the hole wall prevent hole wall slump and backfill fall into the hole at the bottom of form sediment.Air pressure is more big in the air bag, and the pressure between air bag and hole wall and air bag and straight length outer wall is big approximately, prevents that the frictional force of soil body whereabouts is more big; Air bag is more big, and the contact area between air bag and hole wall and air bag and straight length outer wall is big approximately, and frictional force is big approximately.Should long-pending concrete mode of occupation of native falling stop device as follows: air bag together with the high-pressure air pipe predetermined fixed on straight length → straight length lifted together with air bag put in place → then by high-pressure air pipe fill in the air bag pressure-air → treat inflatable bag inflating press reach certain pressure and be full of space between straight length outer wall and the hole wall after, pull out high-pressure air pipe → long-pending native falling stop device and work.
Present embodiment prevents that by the seamless connection between air bag (annular seal air bag) energy implement device and the hole wall soil body from dropping; And, by the pressure by augmented airbag, increase frictional force, thereby realize stronger supporting capacity; Have simple in structure, the characteristics that cost is low, easy to use.
Embodiment 3:(omits accompanying drawing) a kind of be used to revolving the long-pending native falling stop device that digs a hole, revolve ring discoid or the annular frustum that digs stake stake shell straight length outer wall for circumferentially being located at, be circulus that can not folding, be that ring discoid or annular frustum directly are set on the straight length, directly be attached in use to revolve and dig a stake stake shell structure and sink to revolve and dig a hole, play the effect to the native falling stop that falls.
Described in the utility model its cooperation has revolving of straight length and digs the use of stake stake shell structure be used to revolving the long-pending native falling stop device that digs a hole, also can arrange one deck, two layers or the long-pending native falling stop device of shellring shape in straight length 1 lower end.
When revolve dig a stake stake shell structure straight length and be furnished with long-pending native falling stop device after; straight length sinks to and revolves when digging hole; long-pending native falling stop device is accepted from the straight length outside toward the loose earth and the impurity that fall in the hole; and keep the stake shell stable; so this device periphery is to be overlapped on the lithosphere; directly fall into long-pending native falling stop device place when falling down and gather when revolving loosening the soil of digging that a top, hole loosens the soil that layer drops; can further not fall into to revolve and dig a bottom, hole; further; when in straight length, building the concrete body; because the protection of straight length is loosened the soil and can not fallen in the moulding stake.
In the long-pending native falling stop device of the utility model, the inner edge of described circulus is attached to revolve to dig on the stake stake shell straight length and with described straight tube shape and adapts, the outside open mode with revolve the shape of digging a hole and big or small consistent; That is: the interior week of circulus and the form fit of straight length, be that straight length is when being circle, the interior week of circulus is also rounded, when being square in interior week of straight length, also being square in interior week of circulus, when the interior week of straight length was other polygons, the interior Zhou Yuqi coupling of circulus arranged, and also is polygon; In like manner, dig a hole when rounded when revolving, the periphery of circulus is also rounded, and when revolving when digging a hole and being polygonized structure, the circulus periphery is dug a hole shape coupling and arranged with revolving, and also is corresponding polygonized structure.
Need to prove that the utility model cooperation is revolved and dug the use of a stake stake shell structure, below introduce to revolve and dig a stake shell structure.
Referring to Fig. 6 and shown in Figure 7, revolve that to dig a stake stake shell structure be the effect of playing framework in the hole of digging of revolving of sinking to, this revolves and digs a stake stake shell structure and comprise reinforcing cage 3, and reinforcing cage 3 can adopt reinforcing cage of the prior art.Be furnished with the straight length of being made by steel bar concrete 1 at reinforcing cage 3 one ends (upper end), straight length 1 one ends (lower end) are affixed with reinforcing cage 3 one ends (upper end).In the utility model, straight length 1 is spliced by some reinforced concrete pipes, and its concrete structure inventor has applied for patent of invention simultaneously.The affixed mode of each reinforced concrete pipe adopts the main muscle in the reinforced concrete pipe to have the extension at pipe end, connects by socket or docking mode between the main muscle of adjacent tubes.Wherein, lithosphere 4, the layer 5 that loosens the soil, sand stone layer 6 is for revolving the environment for use of digging stake stake shell structure.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (8)
1. one kind is used for revolving the long-pending native falling stop device that digs a hole, its cooperation has revolving of straight length and digs the use of stake stake shell structure, it is characterized in that this long-pending native falling stop device is circulus, the inner edge of described circulus is attached to revolve to dig on the stake stake shell straight length and with described straight tube shape and adapts.
2. according to claim 1ly it is characterized in that be used to revolving the long-pending native falling stop device that digs a hole that the long-pending native falling stop device of described circulus digs a stake stake shell straight length outer wall and fixedlys connected with revolving, and is ring discoid or annular frustum.
3. according to claim 1ly it is characterized in that be used to revolving the long-pending native falling stop device that digs a hole, but described long-pending native falling stop device is the folding circulus.
4. according to claim 3 be used to revolving the long-pending native falling stop device that digs a hole, it is characterized in that, but described folding circulus is the annular seal air bag, and described annular seal air bag circumferentially is located at and is revolved the straight length outer wall that digs stake stake shell, and air bag is provided with the high pressure valve.
5. according to claim 3ly it is characterized in that be used to revolving the long-pending native falling stop device that digs a hole, but described folding circulus is for falling beveled structure.
6. according to claim 5ly it is characterized in that be used to revolving the long-pending native falling stop device that digs a hole that the described beveled structure that falls is loop tray, described pallet circumferentially is located at and is revolved a straight length outer wall that digs stake stake shell, is made up of skeleton and ring-type supporting plate;
Described supporting plate circumferentially is located at and is revolved a straight length outer wall that digs stake stake shell, and described skeleton is located at the below of annular supporting plate by a plurality of rod-like element looping arrays, and annular pallet is supported; One end of described rod-like element with revolve a straight length outer wall that digs stake stake shell and be connected by the part that is rotatably connected, fixedly connected below the other end and the supporting plate, by opening and folding of the part realization supporting plate that is rotatably connected.
7. according to claim 6 be used to revolving the long-pending native falling stop device that digs a hole, it is characterized in that, the described part that is rotatably connected comprises erection loop, articulated elements, spring and safety rope, described erection loop comprises is located at first, second, and third erection loop that revolves the straight length outer wall that digs stake stake shell from top to bottom, and each rod-like element of described skeleton is inboard hinged by described articulated elements and second erection loop; Spring is located at the loop tray below, and an end of spring is connected with rod-like element middle part or the outside, and the other end is connected with the 3rd erection loop, and safety rope is arranged in first erection loop and an end is connected with described rod-like element middle part or the outside, and the other end is located at the straight length entrance.
8. according to claim 6ly it is characterized in that be used to revolving the long-pending native falling stop device that digs a hole that the flexible protective material that described annular supporting plate is one of canvas, rubber or plastics constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113681 CN203114221U (en) | 2013-03-13 | 2013-03-13 | Soil falling-stopping device used for rotary excavating pile hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113681 CN203114221U (en) | 2013-03-13 | 2013-03-13 | Soil falling-stopping device used for rotary excavating pile hole |
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| Publication Number | Publication Date |
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| CN203114221U true CN203114221U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320113681 Expired - Lifetime CN203114221U (en) | 2013-03-13 | 2013-03-13 | Soil falling-stopping device used for rotary excavating pile hole |
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| CN (1) | CN203114221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104209A (en) * | 2013-03-13 | 2013-05-15 | 中冶建工集团有限公司 | Device for preventing falling of accumulated soil for rotatablely excavated pile hole |
| CN111561262A (en) * | 2020-05-29 | 2020-08-21 | 贵州建工集团第一建筑工程有限责任公司 | Hole forming method of rotary drilling rig for large-size pile hole in karst area |
-
2013
- 2013-03-13 CN CN 201320113681 patent/CN203114221U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104209A (en) * | 2013-03-13 | 2013-05-15 | 中冶建工集团有限公司 | Device for preventing falling of accumulated soil for rotatablely excavated pile hole |
| CN103104209B (en) * | 2013-03-13 | 2015-06-17 | 中冶建工集团有限公司 | Device for preventing falling of accumulated soil for rotatablely excavated pile hole |
| CN111561262A (en) * | 2020-05-29 | 2020-08-21 | 贵州建工集团第一建筑工程有限责任公司 | Hole forming method of rotary drilling rig for large-size pile hole in karst area |
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Granted publication date: 20130807 |
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