CN101538857A - Pile extraction construction method - Google Patents
Pile extraction construction method Download PDFInfo
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- CN101538857A CN101538857A CN200910064612A CN200910064612A CN101538857A CN 101538857 A CN101538857 A CN 101538857A CN 200910064612 A CN200910064612 A CN 200910064612A CN 200910064612 A CN200910064612 A CN 200910064612A CN 101538857 A CN101538857 A CN 101538857A
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Abstract
The invention discloses a pile extraction construction method. The method is characterized by separating pipe pile which is embedded in ground from surrounding soil mass thereof by pounding of high-pressure jetting with a jetting pore-forming machine so as to greatly reduce or eliminate cohesive force between the pipe pile and the surrounding soil mass thereof, thus facilitating pile extraction construction. The method is characterized by creating pores to remove the cohesive force between the pipe pile and the surrounding soil mass thereof, then extracting a pile by a crane with corresponding tonnage. The method has the advantages of simple operation, safe and reliable property and high operation efficiency, and is applicable to pile extraction in water, dry land and soft ground layers with various diameters and depths.
Description
Technical field
The invention belongs to building, construction of hydro project technical field, relate in particular to a kind of pile-pulling construction method.
Background technology
Development along with economic society, old building or other civil engineering remove enlarging or newly-built engineering gets more and more, so in base newly developed, old building is stayed the obstacle that underground many engineering piles have become construction, must be removed, could be implemented new construction.Stake was driven underground after the long period, soil is subjected to high-intensity extruding around the stake, not only make the native intensity of stake be higher than the intensity of original soil on every side, and the soil around stake and the stake is connected as a single entity, this moment stake and the stake resistance between the soil on every side have not been resistance when designing originally, it has not only surpassed an own concrete compressive strength, greater than the tensile strength of stake itself, can't pull out the more piece stake with existing construction machinery and job practices.The employing that has directly is enclosed within cable wire by in the pile pulling, and the method for utilizing jack or crane to extract, this method are applicable to pull out buries shallow and more tiny stake, and to bury also thicker stake then inapplicable for bigger; The employing specific hydraulic extractor that also has, this kind equipment mostly is import, costs an arm and a leg, construction cost height, all very high to construction plant, energy requirement, and very high to the pile crown requirement of strength, general pile pulling engineering is difficult to be suitable for this pile pulling method; Domestic also have various types of jetting perforating device devices, but utilize these equipment to carry out the pile pulling construction beyond example.
Summary of the invention
The present invention provides a kind of construction cost lower, easy and simple to handle, safe pile-pulling construction method in order to solve deficiency of the prior art.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of pile-pulling construction method, and it may further comprise the steps,
1., determine the position of pile tube, correct position high-lift pump water source at the construction field (site), and jetting perforating device device is installed;
2., open jetting perforating device device, perforating device is enclosed within the pile tube outer wall, carries out water jetting at high pressure pore-creating operation downwards along pile tube, make the pile tube surrounding soil after water under high pressure impacts fragmentation down, formation mud, along the pile tube outer wall from below turn over and overflow up, the perforating device surrounding soil keeps stable under the effect of turning over the mud that overflows, build the cavity (being wellhole) that is full of slime water between pile tube and its surrounding soil, realize pile tube in wellhole mud uprightly;
3., measure the pore-creating degree of depth of perforating device, reach after the predetermined pore-creating degree of depth perforating device and quit work or reduce perforating device jetting pressure and flow;
4., utilize rope to fasten pile tube body top, and articulate with crane;
5., open crane, pile tube and the perforating device that is attached to pile tube outer wall, certain depth are vertically hung out or extract from wellhole in the lump.
Described jetting perforating device device comprises sole, stand, water system, assembly pulley, perforating device and hoist engine, the sole bottom is provided with road wheel and drive motors can finely tune the corresponding of perforating device and stake axis, the counterweight of being furnished with constant weight in the sole bottom, stand, water system and hoist engine are arranged on the sole, assembly pulley is located at the stand top, the rope that twines on the hoist engine passes assembly pulley and is connected with perforating device, water system comprises water pump, motor and water pipe, water pipe from stand bottom to the stand top then at the rope of stand top and lifting perforating device straight down, the delivery port of water pipe is arranged in the perforating device, when hoist engine drive perforating device pumps pore-creating, water pump extracts in the reservoir or the water of korneforos provides water jetting at high pressure by water pipe to perforating device, makes the fragmentation of pile tube surrounding soil and be dissolved in water formation mud to overflow.
Described perforating device lower floor is around being provided with plurality of nozzles straight down and being tilted to two oblique impact nozzles of breach, and when perforating device work, the perforating device nozzle set out High-Pressure Water and impacts pile body soil layer on every side, carries out pore-creating.
Described hoist engine is the manual hoist engines of two suspension centres, clutch is selected manual friction-type for use, is furnished with normally closed belt parking brake brake simultaneously, realize that perforating device is quick towards pounding under action of gravity, between two reels of hoist engine, synchronized is set, on two reels rope is set respectively and is connected with perforating device, synchronized makes the rope lifting on perforating device perforating device both sides when work synchronous, avoids perforating device crooked.
Steel plate offers breach around the described perforating device lower edge, directly over be provided with the whirligig of certain amplitude in the stand top, when underground soil layer is comparatively complicated or run into the assorted leaf of deadwood, also rotate when moving up and down, improve the speed of pore-creating.
Described whirligig is made up of hydraulic jack, drive motors and cam link mechanism, when perforating device runs into working lining and runs into clay or obstruction, at this moment can start whirligig, perforating device device per minute is back and forth rotated 10～20 times by a small margin, shaping device pressurizes downwards simultaneously, broken clay or obstruction reach the speed of operate as normal.
The present invention adopts first pore-creating to remove stake and the bonding force between the soil layer on every side, and then uses the method for the crane pile pulling of corresponding tonnage, and easy and simple to handle, safe and reliable, operating efficiency improves greatly; Perforating device when work blade starts whirligig when running into obstruction such as hard soil layer or deadwood weeds, rotate when the perforating device body is moved up and down, and with the resistance of the thing that overcomes obstacles, reaches good pore-forming effect, increases work efficiency; The perforating device body shaft upwards offers the situation that breach had both considered that distance was too small, perforating device can't pass through between stake and the stake, improves perforating device compliance; The perforating device setting is dashed to pound and rotate sawtooth and is made the pore-forming blade shear soil layer more rapidly, improves the pore-creating operating efficiency; Whirligig adopts the hydraulic-driven form, and is simple in structure, drive flexibly; Synchronized makes the rope lifting on perforating device perforating device both sides when work synchronous, avoids perforating device crooked; This job practices is mainly used in the river dike basis anti-impact protection of powder, soft soil layer, the pile pulling engineering of river training works, also can be applicable in the worker China Democratic National Construction Association engineering, and is applied widely, has extremely strong application value.
Description of drawings
Fig. 1 is the structural representation of each equipment/part in the middle of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, each equipment/part in the middle of the present invention, comprise sole 30, stand 31, hoist engine 32, water pump-motor 33 (water system) and perforating device 34, stand 31, hoist engine 32 and water pump-motor 33 are arranged on the sole 30, stand 31 is welded by channel-section steel and diagonal brace or bolt is formed by connecting, stand 31 tops are provided with pulley 35 and pulley 36, hoist engine 32 is in transmission connection by the rope 37 that is wrapped on pulley 35 and the pulley 36 with perforating device 34, rope 37 is a wire rope, big ting model is decided according to actual conditions, the delivery port of water pump-motor 33 is connected with perforating device 34 by water inlet pipe 3, and the water inlet pipe 3 of stand 31 tops is provided with one section flexible pipe 38.Perforating device 34 comprises perforating device body 1, perforating device body 1 lower end is provided with pore-forming blade 4, water inlet pipe 3 is provided with two, all be arranged between the interior body 11 and outer body 12 of perforating device body 1, stand 31 top front ends are provided with whirligig 40, whirligig 40 comprises horizontally disposed balancing pole 15 and balancing pole 16, one end of balancing pole 15 and balancing pole 16 is rotationally connected by bearing with two water inlet pipes 3 respectively, balancing pole 15 outside levels are provided with hydraulic jack 19, piston 20 ends of hydraulic jack 19 are hinged with connecting rod 21, and connecting rod 21 is fixedlyed connected with the water inlet pipe 3 of balancing pole 15 homonymies.Level is provided with two-layer upper strata jet pipe 5 and lower floor's jet pipe 6 around perforating device body 1 cross section on the perforating device body 1, upper strata jet pipe 5 is connected with water inlet pipe 3 respectively with lower floor jet pipe 6, evenly be provided with several side direction water spouts 7 and vertical water spout 10 along circumference respectively on upper strata jet pipe 5 and the lower floor's jet pipe 6, the spout of the side direction water spout 7 on the upper strata jet pipe 5 is provided with to the inside, and the spout of the vertical water spout 10 on lower floor's jet pipe 6 is provided with straight down.Perforating device body 1 offers breach 8 in the axial direction from bottom to top, and the length of breach 8 is highly consistent with perforating device body 1, and breach 8 is provided with between 60 °～90 ° at the angle β of the both ends of the surface on the width and perforating device body 1 line of centres.Increased synchronized between two reels 39 of hoist engine 32, made rope 37 liftings on perforating device 34 both sides when work synchronous, avoided pore-forming distortion, crooked, the pore-forming precision is not less than 1: 300.
The pile-pulling construction method that is adopted during construction may further comprise the steps,
1., to the construction plant carry out smooth, the compacting, help carrying out smoothly of pile pulling operation like this, can guarantee construction quality and safety again, improve speed of application, the more important thing is the application life of prolongation equipment, remove the plate-girder that the stake top connects, excavate the cannelure of certain depth along pile body on every side;
2., according to the position of stake, correct position excavation reservoir and jetting perforating device device is installed at the construction field (site); Jetting perforating device device is installed be may further comprise the steps:
A. spread sleeper, spacing is one meter, emits axis direction, accurately lays the slippage pipe;
B., counterweight is installed, can strengthens the stability of sole 30, lay the drive motors 51 of road wheel 50 and road wheel 50, fixing road wheel 50 clamps make sole 30 and road wheel 50 be one then;
C., stand 31 is installed, and the degree of depth of pore-creating is determined the height of stand 31 as required, and stand 31 bottoms are fastened on the sole 30 by bolt, and top pulleys group (pulley 35 and pulley 36) is installed;
D., water pump-motor 33 and pipeline water pipe, pressure meter, flowmeter are installed;
E., the manual hoist engines 32 (comprising motor, reducer, brake, synchronized, roll device) of two suspension centres are installed, rope 37 are installed, note rope 37 around to twine the number of plies, rope 37 is walked around stand 31
The pulley 35 at top and pulley 36 link together with perforating device 34, guarantee that the axis of perforating device 34 is consistent with the axis coincidence of stake, realize installing of complete machine;
3., open the work of jetting perforating device device, perforating device 34 carries out the pore-creating operation downwards along the cannelure that has excavated, during pore-creating, by water pump-motor 33 supply pressure water, by water inlet pipe 3, connect flexible pipe 38, upper strata jet pipe 5, (side direction water spout 7 is used for the pile sinking operation to lower floor's jet pipe 6 by vertical water spout 10, close during pile pulling) to perforating device 34, form the water jets under high pressure jet, destroy soil layer construction, water and soil mixes in slotted eye, because constantly feedwater, constantly destroy soil layer, make the water and soil mixed liquor overflow slotted eye, perforating device 34 is controlled down at hoist engine, pump, hoist engine 32 is mentioned perforating device body 1 certain altitude, appoint 1 free-falling of perforating device body, gravitional force is converted into impact force, the elevator function is embodied as hole device 34 and pumps with 10～30 times/min, amplitude is 0.5 meter, pore-forming blade 4 is the soil layer on every side of shearing impact stake downwards energetically, soil layer mud is overflowed from top, hole, stake and on every side soil layer are broken away from, thereby realize that pile foundation separates downward gradually drilling depth with soil layer around it, cause and the similar hole of perforating device 34 shapes, carry out water and soil after the water and soil mixed liquor that overflows reclaims and separate (generally using the precipitation method), the water that contains mud is supplied with water pump-motor 33 again and is recycled, and utilizes the mud off in the slotted eye.When soil layer mechanical property (increase of soil layer intensity) when changing, when running into obstructions such as rock or deadwood weeds, start the hydraulic jack 19 of whirligig 40, the piston 20 of hydraulic jack 19 elongates or shortens, drivening rod 21, it serves as with reference to back and forth rotation with balancing pole 15 and 16 that connecting rod 21 drives water inlet pipe 3, when being moved up and down, perforating device body 1 rotates, make perforating device device per minute rotation 10～20 times, the resistance of thing overcomes obstacles, reach good pore-forming effect, improved operating efficiency.
4., measure the pore-creating degree of depth of perforating device 34, i.e. the height dimension that separates with soil layer of pile foundation is closed hoist engine 32, water pump-motor 33 after reaching the predetermined pore-creating degree of depth, perforating device 34 quits work;
5., perforating device 34 is lifted on the ground, utilize pre-prepd pile pulling rope one end to fasten pile body, the other end and crane articulate, and open crane, and stake is vertically extracted.
Since then, finish the pile pulling operation of a pile base, the pile pulling operation of other pile foundation is identical with the method.
Claims (6)
1, a kind of pile-pulling construction method, it is characterized in that: it may further comprise the steps,
1., determine the position of pile tube, correct position high-lift pump water source at the construction field (site), and jetting perforating device device is installed;
2., open jetting perforating device device, perforating device is enclosed within the pile tube outer wall, carries out water jetting at high pressure pore-creating operation downwards along pile tube, make the pile tube surrounding soil after water under high pressure impacts fragmentation down, formation mud, along the pile tube outer wall from below turn over and overflow up, the perforating device surrounding soil keeps stable under the effect of turning over the mud that overflows, build the cavity that is full of slime water between pile tube and its surrounding soil, realize pile tube in wellhole mud uprightly;
3., measure the pore-creating degree of depth of perforating device, reach after the predetermined pore-creating degree of depth perforating device and quit work or reduce perforating device jetting pressure and flow;
4., utilize rope to fasten pile tube body top, and articulate with crane;
5., open crane, pile tube and the perforating device that is attached to pile tube outer wall, certain depth are vertically hung out or extract from wellhole in the lump.
2, a kind of pile-pulling construction method according to claim 1, it is characterized in that: described jetting perforating device device comprises sole, stand, water system, assembly pulley, perforating device and hoist engine, the sole bottom is provided with road wheel and drive motors can finely tune the corresponding of perforating device and stake axis, the counterweight of being furnished with constant weight in the sole bottom, stand, water system and hoist engine are arranged on the sole, assembly pulley is located at the stand top, the rope that twines on the hoist engine passes assembly pulley and is connected with perforating device, water system comprises water pump, motor and water pipe, water pipe from stand bottom to the stand top then at the rope of stand top and lifting perforating device straight down, the delivery port of water pipe is arranged in the perforating device, when hoist engine drive perforating device pumps pore-creating, water pump extracts in the reservoir or the water of korneforos provides water jetting at high pressure by water pipe to perforating device, makes the fragmentation of pile tube surrounding soil and be dissolved in water formation mud to overflow.
3, a kind of pile-pulling construction method according to claim 2, it is characterized in that: described perforating device lower floor is around being provided with plurality of nozzles straight down and being tilted to two oblique impact nozzles of breach, when perforating device is worked, the perforating device nozzle sets out High-Pressure Water and impacts pile body soil layer on every side, carries out pore-creating.
4, according to claim 2 or 3 described a kind of pile-pulling construction methods, it is characterized in that: described hoist engine is the manual hoist engine of two suspension centres, clutch is selected manual friction-type for use, is furnished with normally closed belt parking brake brake simultaneously, the realization perforating device dashes under action of gravity fast to be pounded, and between two reels of hoist engine synchronized is set, and on two reels rope is set respectively and is connected with perforating device, synchronized makes the rope lifting on perforating device perforating device both sides when work synchronous, avoids perforating device crooked.
5, a kind of pile-pulling construction method according to claim 4, it is characterized in that: steel plate offers breach around the described perforating device lower edge, directly over be provided with the whirligig of certain amplitude in the stand top, when underground soil layer is comparatively complicated or run into the assorted leaf of deadwood, also rotate when moving up and down, improve the speed of pore-creating.
6, a kind of pile-pulling construction method as claimed in claim 5, it is characterized in that: described whirligig is made up of hydraulic jack, drive motors and cam link mechanism, when perforating device runs into working lining and runs into clay or obstruction, at this moment can start whirligig, perforating device device per minute is back and forth rotated 10～20 times by a small margin, simultaneously shaping device pressurizes downwards, and broken clay or obstruction reach the speed of operate as normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910064612A CN101538857A (en) | 2009-04-10 | 2009-04-10 | Pile extraction construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910064612A CN101538857A (en) | 2009-04-10 | 2009-04-10 | Pile extraction construction method |
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| CN101538857A true CN101538857A (en) | 2009-09-23 |
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| CN200910064612A Pending CN101538857A (en) | 2009-04-10 | 2009-04-10 | Pile extraction construction method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493455A (en) * | 2011-12-20 | 2012-06-13 | 中铁第四勘察设计院集团有限公司 | Method for removing foundation piles |
| CN102605787A (en) * | 2012-02-29 | 2012-07-25 | 赵兴山 | Device for inhibiting foundation soil from disturbing during removing of steel sheet piles and application method thereof |
| CN102877463A (en) * | 2012-09-28 | 2013-01-16 | 中国建筑第六工程局有限公司 | Recyclable foundation pit support pipe pile and application and recovery method thereof |
| CN103243754A (en) * | 2012-02-08 | 2013-08-14 | 中国石油化工股份有限公司 | Annular pile jetting and cratering device and using method thereof |
| CN103911996A (en) * | 2014-04-01 | 2014-07-09 | 中铁六局集团有限公司 | Construction method for pulling out steel sheet piles close to existing buildings |
| CN104120723A (en) * | 2014-08-11 | 2014-10-29 | 耿明全 | Jetting and drawing-out pile jacking-in method |
| CN104895486A (en) * | 2015-06-05 | 2015-09-09 | 刘玉秋 | Round-head combined hole forming machine |
| CN105625430A (en) * | 2014-12-26 | 2016-06-01 | 中国铁建大桥工程局集团有限公司 | Pile-pulling method using high-pressure water for cutting soil body in narrow construction area |
| CN106930288A (en) * | 2016-11-11 | 2017-07-07 | 叶长青 | A kind of pile extracting method |
| CN107059872A (en) * | 2017-04-01 | 2017-08-18 | 南京瑞迪建设科技有限公司 | Oblique cord pile extracting method and oblique cord pile pulling system |
| US10486782B2 (en) | 2017-11-10 | 2019-11-26 | Industrial Technology Research Institute | Carrying device and operation method thereof |
| CN115075247A (en) * | 2022-05-24 | 2022-09-20 | 保利长大工程有限公司 | Pulling-out method for steel pipe pile of cross-river channel box girder bracket |
-
2009
- 2009-04-10 CN CN200910064612A patent/CN101538857A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493455A (en) * | 2011-12-20 | 2012-06-13 | 中铁第四勘察设计院集团有限公司 | Method for removing foundation piles |
| CN103243754A (en) * | 2012-02-08 | 2013-08-14 | 中国石油化工股份有限公司 | Annular pile jetting and cratering device and using method thereof |
| CN102605787A (en) * | 2012-02-29 | 2012-07-25 | 赵兴山 | Device for inhibiting foundation soil from disturbing during removing of steel sheet piles and application method thereof |
| CN102877463A (en) * | 2012-09-28 | 2013-01-16 | 中国建筑第六工程局有限公司 | Recyclable foundation pit support pipe pile and application and recovery method thereof |
| CN102877463B (en) * | 2012-09-28 | 2015-01-07 | 中国建筑第六工程局有限公司 | Recyclable foundation pit support pipe pile and application and recovery method thereof |
| CN103911996A (en) * | 2014-04-01 | 2014-07-09 | 中铁六局集团有限公司 | Construction method for pulling out steel sheet piles close to existing buildings |
| CN103911996B (en) * | 2014-04-01 | 2015-08-19 | 中铁六局集团有限公司 | Close on existing building steel sheet pile and pull out construction method |
| CN104120723A (en) * | 2014-08-11 | 2014-10-29 | 耿明全 | Jetting and drawing-out pile jacking-in method |
| CN105625430A (en) * | 2014-12-26 | 2016-06-01 | 中国铁建大桥工程局集团有限公司 | Pile-pulling method using high-pressure water for cutting soil body in narrow construction area |
| CN104895486A (en) * | 2015-06-05 | 2015-09-09 | 刘玉秋 | Round-head combined hole forming machine |
| CN104895486B (en) * | 2015-06-05 | 2016-12-14 | 重庆凌云工具有限公司 | Round end combination bore hole forming machine |
| CN106930288A (en) * | 2016-11-11 | 2017-07-07 | 叶长青 | A kind of pile extracting method |
| CN106930288B (en) * | 2016-11-11 | 2018-11-09 | 叶长青 | A kind of pile extracting method |
| CN107059872A (en) * | 2017-04-01 | 2017-08-18 | 南京瑞迪建设科技有限公司 | Oblique cord pile extracting method and oblique cord pile pulling system |
| CN107059872B (en) * | 2017-04-01 | 2022-06-07 | 南京瑞迪建设科技有限公司 | Inclined cable pile pulling method and inclined cable pile pulling system |
| US10486782B2 (en) | 2017-11-10 | 2019-11-26 | Industrial Technology Research Institute | Carrying device and operation method thereof |
| CN115075247A (en) * | 2022-05-24 | 2022-09-20 | 保利长大工程有限公司 | Pulling-out method for steel pipe pile of cross-river channel box girder bracket |
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Open date: 20090923 |