CN108571286A - A kind of pile foundation boring device and method - Google Patents

A kind of pile foundation boring device and method Download PDF

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Publication number
CN108571286A
CN108571286A CN201810427503.5A CN201810427503A CN108571286A CN 108571286 A CN108571286 A CN 108571286A CN 201810427503 A CN201810427503 A CN 201810427503A CN 108571286 A CN108571286 A CN 108571286A
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China
Prior art keywords
trepanning
metal
impact force
pile foundation
passage
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CN201810427503.5A
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CN108571286B (en
Inventor
李亮
黄玉杰
韩小涛
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00Percussion drilling
    • E21B1/02Surface drives for drop hammers or percussion drilling, e.g. with a cable
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/28Enlarging drilled holes, e.g. by counterboring

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The invention discloses a kind of pile foundation boring devices and method, described device to include:Trepanning power generation mechanism;It includes metal passage and/or fluid passage, the second impact force that trepanning power generation mechanism is used for the first impact force using the metal electrification gasification exploding generation in metal passage, power supply generates the liquid electric discharge in fluid passage, or driving force of the third impact force as trepanning caused by the metal electrification gasification exploding in metal passage and the liquid reactions in metal and fluid passage, caused the extruding for waiting for trepanning soil layer by driving force and be crushed, to reach trepanning effect.The present invention can be used for pore-forming and the reaming of pile foundation, the working efficiency of pouring pile hole can be improved, it is simple in structure, simple operation, energy consumption is small, safe and reliable pollution-free, while impact force can be with flexible modulation, suitable for different soils, it is especially suitable for pore-forming and reaming in the sand gravel layer containing boulder, hard soil layer, hard rock stratum and soil layer containing underground water.

Description

A kind of pile foundation boring device and method
Technical field
The invention belongs to pile foundation construction fields, more particularly, to a kind of pile foundation boring device and method.
Background technology
Bored concrete pile is to place steel reinforcement cage after pore-forming in hole by the directly trepanning on designed stake position, and Reperfu- sion is mixed Coagulate a kind of pile-formation process of soil.Common pile making method includes impact holing and manually digging hole.Impact holing usually utilizes impact Churn or hoist engine with drill lip, there is the drill hammer of larger quality to improve, cut rock stratum by the impact force of free-falling Or impact extrusion soil layer, special fishing slag tool soil digging pore-forming is then used, equipment is simple, easy to operate, but its speed of fulfiling hole is slow, work Time phase is long, and drill bit is easy to wear, is susceptible to hole deviation, bit freezing and falls the accidents such as brill, maintenance cost is high, and construction speed is difficult to protect Card.Manually digging hole is then directly to carry out shoveling pore-forming using manpower, cheap, but depth of pore forming is limited, and safety measure is improper Or it is incomplete, it be easy to cause casualties, and anoxic or the soil for having poison gas to occur in geological condition complexity, the advanced hole of level of ground water Layer should not use.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of pile foundation boring device and method, Thus it is slow to solve trepanning speed existing for existing pile making method, time duration is long, and trepanning depth is limited and construction speed is difficult to protect The technical problem of card etc..
To achieve the above object, according to one aspect of the present invention, a kind of pile foundation boring device is provided, including:Trepanning Power generation mechanism;
The trepanning power generation mechanism includes metal passage and/or fluid passage, and the trepanning power generation mechanism is for profit With the first impact force of the metal electrification gasification exploding generation in the metal passage, power supply to the liquid in the fluid passage Discharge the second impact force of generation or the metal electrification gasification exploding in the metal passage and metal and the fluid passage In liquid reactions caused by driving force of the third impact force as trepanning, cause to wait for squeezing for trepanning soil layer by the driving force It presses and broken, to reach trepanning effect.
Preferably, the pile foundation boring device further includes wire feeder, and the wire feeder in single trepanning for terminating Afterwards, it is automatically replenished metal, facilitates the continuous automatic progress of trepanning operation.
Preferably, the pile foundation boring device further includes liquid supplementary mechanism, and the liquid supplementary mechanism is used in trepanning After operation, according to the Expenditure Levels of liquid, automatic supplementing liquid.
Preferably, the trepanning power generation mechanism includes at least one metal passage and/or at least one fluid passage.
It is another aspect of this invention to provide that a kind of pile foundation boring method is provided, including:
Pulse current is passed through to the metal in metal passage, so that metallic high temperature gasifies, explosion occurs and generates the first impact Power;Alternatively, discharging the liquid in fluid passage, the second impact force is generated;Alternatively, being passed through to the metal in the metal passage Pulse current, so that metallic high temperature gasification is exploded, meanwhile, the metal occurs with the liquid in the fluid passage Chemical reaction generates third impact force;
Driving force by first impact force, second impact force or the third impact force as trepanning, by The driving force causes the extruding for waiting for trepanning soil layer and is crushed, to reach trepanning effect.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show Beneficial effect:
(1) present invention reacts institute using Metal Explosion, liquid electric discharge or Metal Explosion with metal and aqueous chemical Active force of the impact force of generation as pile foundation pore-forming and reaming, apparatus structure is simple, and operation is simple, and equipment is light, flexibility Height is not limited by construction site and working face, of low cost, low cost, is easy to construction and field operation.Reaming procedure can be single Secondary completion, the ream forming time is short, and effect is reliable, and work efficiency is high, saves the construction time.Electricity is used only in pore-forming and reaming procedure Can, cleanliness without any pollution, securely and reliably, movement and control unit are few, and easy to maintain, service life is long, and geology adaptive faculty is strong, can be with Pore-forming and the reaming work for adapting to different soils, are suitable for different type pile and stake size.Particularly suitable clay layer, hard soil layer, The soil layer containing rock such as sand gravel layer and the soil layer containing underground water.
(2) present invention can be flexible by adjusting the dosage for being passed through electric current, the gross energy of impulse discharge and metal of metal The active force for regulating and controlling single pore-forming and reaming ensures to adjust the depth of pore-forming and the geometric parameters such as range of radius, reaming Pile quality and bearing capacity of single pile, the impulse discharge time is extremely short, and single depth of pore forming is high, and speed is fast, it can be achieved that uninterrupted continuous Pore-forming operation is conducive to shorten the construction period.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of pouring pile hole device provided in an embodiment of the present invention;
Fig. 2 is a kind of structural schematic diagram of pile foundation Counterboring apparatus provided in an embodiment of the present invention;
Fig. 3 is the schematic diagram after a kind of pouring pile hole provided in an embodiment of the present invention;
Fig. 4 is the schematic diagram after a kind of pile foundation reaming provided in an embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below It does not constitute a conflict with each other and can be combined with each other.
The present invention provides a kind of pile foundation boring device and methods, can be used for pore-forming and the reaming of pile foundation, can improve filling The working efficiency of stake pore-forming is noted, simple in structure, simple operation, energy consumption is small, safe and reliable pollution-free, while impact force can be flexible It adjusts, is suitable for different soils, be especially suitable for the sand gravel layer containing boulder, hard soil layer, hard rock stratum and contain underground water Soil layer in pore-forming and reaming.
Term " first ", " second " and " third " in description and claims of this specification etc. is for distinguishing not Same object, not for description particular order.
In one aspect of the invention, a kind of pile foundation boring device is provided, including:Trepanning power generation mechanism;
Trepanning power generation mechanism includes metal passage and/or fluid passage, and trepanning power generation mechanism is used for logical using metal Second punching of the first impact force, power supply that metal electrification gasification exploding in road generates to the liquid electric discharge generation in fluid passage Hit the metal electrification gasification exploding in power or metal passage and metal and third caused by the liquid reactions in fluid passage Driving force of the impact force as trepanning is caused the extruding for waiting for trepanning soil layer by driving force and is crushed, to reach trepanning effect.
In embodiments of the present invention, metal after gasification, greatly increases with the contact surface of liquid, improves metal and liquid The impact force that chemical reaction generates occurs.
In embodiments of the present invention, metal material can be any one metal material such as aluminium, iron or tungsten, fluent material It can be any one fluent material such as water, specifically be chemically reacted with which kind of fluent material using which kind of metal material, this Inventive embodiments do not make uniqueness restriction.
In embodiments of the present invention, trepanning power generation mechanism includes at least one metal passage and/or at least one liquid Channel, the specifically used quantity embodiment of the present invention do not make uniqueness restriction.
In embodiments of the present invention, metal can be Filamentous, band-like or foil-like etc., or turn to single coil shape, Which kind of shape embodiment of the present invention uniqueness restriction is not specifically made using.
Wherein, coil can be a whole independent coil, can also be multiple small coils, facilitate dilatation, flexibly assemble, Which kind of mode embodiment of the present invention uniqueness restriction is not specifically made using.
Wherein, by adjusting the dosage of metal/liquid, trepanning driving force can be flexibly controlled, to reach best ramming Effect and compacting quality.
As an alternative embodiment, pile foundation boring device further includes wire feeder, wire feeder is used in single After trepanning, it is automatically replenished metal, facilitates the continuous automatic progress of trepanning operation.
As an alternative embodiment, pile foundation boring device further includes liquid supplementary mechanism, liquid supplementary mechanism is used In after trepanning operation, according to the Expenditure Levels of liquid, automatic supplementing liquid.
The present invention is described in detail with reference to the accompanying drawings and embodiments.
Embodiment 1
As shown in Figure 1, the overall structure of the pouring pile hole device of the embodiment of the present invention includes:High-field electrode 1, ground connection electricity Pole 2, aluminium wire 3, soil layer 4, water inlet pipe 5, outlet pipe 6.
Aluminium wire 3 is arranged on 4 surface of soil layer, and both ends are connect with high-field electrode 1 and grounding electrode 2 respectively.It high-field electrode 1 and connects Water is full of between ground electrode 2.
Forming hole method includes the following steps:
(1) aluminium wire 3 is close to the placement of soil layer 4, and along strip parallel arrangement on 4 surface of soil layer, the both ends of aluminium wire 3 connect high pressure respectively Electrode 1 and grounding electrode 3;
(2) it by water inlet pipe 5, introduces the water between high-field electrode 1 and grounding electrode 2 so that high-field electrode 1 and ground connection electricity Between pole 2 be full of water, while aluminium wire 3 impregnate it is submerged in water;
(3) it discharges between high-field electrode 1 and grounding electrode 2 so that high impulse currents, joule heating effect are flowed through in aluminium wire 3 So that energy gathers in aluminium wire rapidly, aluminium wire high-temperature gasification occurs explosion and generates huge shock wave, meanwhile, aluminium wire gasification Afterwards, it is greatly increased with the contact surface of water, aluminium wire is chemically reacted with water, generates hydrogen, and the superposition of both power causes soil layer It squeezes and broken;
(4) native slag enters outlet pipe 6 with water and is rejected to outside stake holes, and (7 be original to single operation pore-forming pattern as shown in Figure 3 Soil layer position, 8 be the soil layer position after pore-forming);
(5) after the completion of impulse discharge, it is refilled by aluminium wire;
(6) step (2)-(5) are repeated, up to pore-forming to designated depth.
In an optional embodiment, aluminium wire dosage and arrangement can be adjusted according to the radius and depth of single pore-forming Mode, to the range and depth of flexible modulation pore-forming next time.
In an optional embodiment, wire feeder can be added, the aluminium wire of consumption is automatically replenished.
Embodiment 2
As shown in Fig. 2, the overall structure of the Counterboring apparatus of the embodiment of the present invention includes:Coil 3, soil layer 4.
Expanding method includes the following steps:
(1) coil 3 is placed in sink, and is close to the placement of soil layer 4, is full of water in sink;
(2) coil 3 is powered, and since coil 3 is formed using aluminum material coiling, joule heating effect is notable under high current, energy It is gathered in coil, aluminium wire high-temperature gasification, explosion occurs and generates huge shock wave, meanwhile, after aluminium gasification, the contact surface with water It greatly increases, aluminium is chemically reacted with water, generates hydrogen, is discharged huge energy, is further increased impact force.Both power Superposition causes the extruding of soil layer and is crushed, and reaches reaming effect, and (7 be original soil layer position to the stake holes profile after reaming as shown in Figure 4 It sets, 8 be the soil layer position after reaming).
(3) it is required if single reaming is not up to specified, repeatedly step (1)-(2), until reaming is completed.
It, can be according to the parameter request of reaming, the number of turns of regulating winding, size and shape in an optional embodiment (coiling aluminium wire dosage), to which only impulse discharge, which need to be arranged, can be completed entire reaming procedure.
In an optional embodiment, wire feeder and water compensation mechanism can be added, the aluminium wire of consumption is automatically replenished And water, while native slag being easily discharged out of the hole with water automatically.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include Within protection scope of the present invention.

Claims (5)

1. a kind of pile foundation boring device, which is characterized in that including:Trepanning power generation mechanism;
The trepanning power generation mechanism includes metal passage and/or fluid passage, and the trepanning power generation mechanism is used to utilize institute The first impact force, power supply that the metal electrification gasification exploding in metal passage generates is stated to discharge to the liquid in the fluid passage In the second impact force generated or the metal electrification gasification exploding in the metal passage and metal and the fluid passage Driving force of the third impact force as trepanning caused by liquid reactions, by the driving force cause to wait for trepanning soil layer extruding and It is broken, to reach trepanning effect.
2. pile foundation boring device according to claim 1, which is characterized in that the pile foundation boring device further includes wire-feed motor Structure, the wire feeder are used for after single trepanning, are automatically replenished metal, facilitate the continuous automatic progress of trepanning operation.
3. pile foundation boring device according to claim 1 or 2, which is characterized in that the pile foundation boring device further includes liquid Body supplementary mechanism, the liquid supplementary mechanism are used for after trepanning operation, according to the Expenditure Levels of liquid, are automatically replenished liquid Body.
4. pile foundation boring device according to claim 3, which is characterized in that the trepanning power generation mechanism includes at least one Metal passage and/or at least one fluid passage.
5. a kind of pile foundation boring method, which is characterized in that including:
Pulse current is passed through to the metal in metal passage, so that metallic high temperature gasifies, explosion occurs and generates the first impact force;Or Person discharges to the liquid in fluid passage, generates the second impact force;Alternatively, being passed through pulse to the metal in the metal passage Electric current, so that metallic high temperature gasification is exploded, meanwhile, with the liquid in the fluid passage chemistry occurs for the metal Reaction generates third impact force;
Driving force by first impact force, second impact force or the third impact force as trepanning, by described Driving force causes the extruding for waiting for trepanning soil layer and is crushed, to reach trepanning effect.
CN201810427503.5A 2018-05-07 2018-05-07 Pile foundation perforating device and method Active CN108571286B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112360337A (en) * 2020-11-04 2021-02-12 北京三一智造科技有限公司 Pile foundation construction method
CN112377094A (en) * 2020-11-04 2021-02-19 北京三一智造科技有限公司 Pile foundation construction method
CN112605519A (en) * 2020-12-18 2021-04-06 湖北科技学院 Explosive welding method based on aluminum and water reaction

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CN105735314A (en) * 2016-04-27 2016-07-06 华中科技大学 Electromagnetic piling device and electromagnetic piling method
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CA2220920A1 (en) * 1995-06-06 1996-12-12 Maxwell Technologies, Inc. Method and apparatus for blasting hard rock
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RU2221918C2 (en) * 2002-02-06 2004-01-20 Джантимиров Христофор Авдеевич Construction method of built-in structural elements in soil
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112360337A (en) * 2020-11-04 2021-02-12 北京三一智造科技有限公司 Pile foundation construction method
CN112377094A (en) * 2020-11-04 2021-02-19 北京三一智造科技有限公司 Pile foundation construction method
CN112605519A (en) * 2020-12-18 2021-04-06 湖北科技学院 Explosive welding method based on aluminum and water reaction
CN112605519B (en) * 2020-12-18 2024-03-05 湖北科技学院 Explosion welding method based on aluminum and water reaction

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