CN103758128A - Raked pile rock-socketed punching construction method - Google Patents

Raked pile rock-socketed punching construction method Download PDF

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Publication number
CN103758128A
CN103758128A CN201410019059.5A CN201410019059A CN103758128A CN 103758128 A CN103758128 A CN 103758128A CN 201410019059 A CN201410019059 A CN 201410019059A CN 103758128 A CN103758128 A CN 103758128A
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CN
China
Prior art keywords
jump bit
rock
pile
casing
construction method
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Pending
Application number
CN201410019059.5A
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Chinese (zh)
Inventor
张徐
许伟章
林海
尹益君
李德晖
缪晨辉
张人元
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China Railway Port and Channel Engineering Group Co Ltd
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China Railway Port and Channel Engineering Group Co Ltd
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Application filed by China Railway Port and Channel Engineering Group Co Ltd filed Critical China Railway Port and Channel Engineering Group Co Ltd
Priority to CN201410019059.5A priority Critical patent/CN103758128A/en
Publication of CN103758128A publication Critical patent/CN103758128A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a raked pile rock-socketed punching construction method. According to the method, a hollow percussion hammer is lifted by a certain distance and then suddenly released to enable the percussion hammer to fall off freely along a raked steel pipe pile, and kinetic energy of percussion of the percussion hammer is utilized to perform impact extrusion on a soil layer or fracture a rock stratum to form a pile hole. Compared with a rotary drilling machine, an adopted percussion drilling machine has the advantages that cost is reduced by about 30%, and economic benefit is obvious. Meanwhile, construction speed is increased, slow work of the labor is reduced, multiple punching pile machines enter for construction at the same time according to number of punching piles and construction period requirements, flow construction is guaranteed, economic benefit is effectively improved while construction operation time is reduced, and construction period is guaranteed; the hollow cylindrical percussion hammer is adopted, and the center of gravity of the hollow cylindrical percussion hammer is not on the head of a retaining cylinder during punching, so that the problem of hammer clamping can be effectively solved, fault of mechanical equipment is reduced, and construction efficiency is improved. The method is applicable to raked pile punching with rock-socketed depth within 10 meters.

Description

A kind of oblique pile embedding in rock punched hole construction method
Technical field
The present invention relates to a kind of oblique pile embedding in rock punched hole construction method.
Background technology
Be built in the high-pile beam harbour on decomposed rock ground, when basement rock (middle decomposed rock) bury dark and on it severely-weathered layer thinner, steel pipe pile only depends on hammer piling, can not arrive the most shallow people's soil depth requirements that requirement that enough degree of depth meet bearing capacity (resistance to compression and tension) maybe can not meet stake, affect the stable of structure, for meeting harbour, normally use force request, adopting pouring type socketed pile in steel pipe pile is a kind of good processing method.
When basement rock (middle decomposed rock) is the higher variation rock stratum of the hardness such as granite, straight stake can adopt impact drill or rotary drill pore-forming, but taper pile is subject to card hammer and the impacts such as off normal of leading, and substantially can only use rotary drill pore-forming.Rotary drill has the advantages such as power is large, speed of fulfiling hole fast, applicable rock stratum is wide, but rotary drill weight more generally reaches 20~50t, and during construction, platform is not only subject to the impact of vertical impact power to be also subject to the impact of the torsion of horizontal direction, platform stable is had relatively high expectations, self does not have locomotivity rig, crane ship assist displacement and transfer reinforcing cage.Impact drill speed of fulfiling hole is relatively slow, but rig weight is lighter, operation platform is only subject to vertical impulse force not affected by horizontal force, self there is certain displacement and crane capacity, locating and move stake and laying reinforcing cage does not need crane ship to assist, economic benefit is obvious, and can be for the quantity of socketed pile, flexible configuration rosy clouds of dawn rig quantity.In view of impact drill admission fee is with little, do not need crane ship to assist, higher for middle-size and small-size Wharf Construction applicability, the advantages such as it is flexible to arrange, and economic benefit is obvious of constructing.The feature that is rammell for harbour basement rock, socketed pile only has 76, and quantity is few, and traditional pile monkey is improved, and straight stake pore-forming adopts cross taper jump bit easy for installation simple in structure.Yet in taper pile punching, the easy off normal of taper pile pore-forming block stamp, hole depth is easily blocked hammer after surpassing steel pipe pile, and pore-forming impact energy is less, and circulating time is long.
Summary of the invention
Object of the present invention, is to provide a kind of oblique pile embedding in rock punched hole construction method.
The solution that the present invention solves its technical problem is: a kind of oblique pile embedding in rock punched hole construction method, it,, by the tubular jump bit lifting certain distance processus aboralis of hollow is put and made jump bit along the steel pipe pile free-falling of tilting, utilizes the impact kinetic energy impact extrusion soil layer of jump bit or broken rock to form a stake hole.
As the further improvement of technique scheme, said method comprises the following steps:
1), stake position setting-out;
2), punching pile machine is in place;
3), the setting-out of position, hole, and the steel pipe pile tilting at arrangement of boring holes;
4), the afterbody of jump bit by jump bit hawser be connected with punching pile machine, the head of jump bit calls in steel pipe pile;
5), adjust the position of jump bit, the center line of jump bit and the center line of steel pipe pile are overlapped;
6), jump bit is promoted to certain distance processus aboralis put and make jump bit along steel pipe pile free-falling, utilize the impact kinetic energy impact extrusion soil layer of jump bit or broken rock to form a stake hole.
Further improvement as technique scheme, in step 4), one end of jump bit hawser ties up to the afterbody of jump bit, and the other end of jump bit hawser overlaps the center line of jump bit and the center line of steel pipe pile after walking around and tying up on punching pile machine after movable pulley.
As the further improvement of technique scheme, after step 6), by the anti-circulation cleaning of jet pump hole method, boring mud landwaste is discharged, and secondary correction is carried out in stake position.
As the further improvement of technique scheme, at the bottom of the Length Ratio pore-forming of described jump bit, absolute altitude is to the distance 0.5 ~ 1m of absolute altitude at the bottom of steel pipe pile.
Further improvement as technique scheme, described jump bit comprises the columned casing of hollow, the first stiffener that two of the afterbody crossbearers of described casing are arranged in parallel, between two the first stiffeners, be welded with suspension ring, the head of casing is installed a plurality of alloy tups, two of the head crossbearers of casing are the second stiffener that crosswise distributes, and alloy part tup is arranged on the second stiffener.
As the further improvement of technique scheme, the inwall of described casing is welded with many and runs through casing two ends channel-section steel end to end, and described channel-section steel distributes along the even circumferential along casing.
As the further improvement of technique scheme, bayonet socket is reserved in the inside of described casing head position, and described alloy tup is welded on bayonet socket.
As the further improvement of technique scheme, the outer wall of described casing is welded with many and runs through casing two ends, reinforcing bar parallel to each other end to end, and described reinforcing bar distributes along the even circumferential of casing.
As the further improvement of technique scheme, described reinforcing bar is spirally coiled on casing outer wall, and the angle between reinforcing bar and casing axis is 1 ~ 3 °.
The invention has the beneficial effects as follows: compare with adopting rotary drill, adopt impact drill to reduce by approximately 30% expense than rotary drill, economic benefit is obvious.For improving speed of application, reduce the work holdup simultaneously, according to many punching pile machines constructions of marching into the arena of the quantity of Percussion Piles and construction period simultaneously, guarantee flow beat construction, effectively increase economic efficiency and reduced the construction operation time simultaneously, guaranteed the construction period; Adopt the tubular jump bit of hollow, when punching, its center of gravity, not at the head of casing, can efficiently solve card hammer phenomenon, reduces mechanical equipment fault, improves efficiency of construction; Reduce the frictional resistance of pile monkey and steel pipe pile, accelerated the punching frequency, shortened the pore-forming time; Good guiding and correction effect are played in the location of Percussion Piles, greatly reduce Percussion Piles stand-off error, guarantee embedding rock quality; Can reduce the cooperation of crane ship in punched hole construction process, operation is simple, and economic benefit is obvious.The present invention is applicable in the taper pile punching in 10 meters of the embedding rock degree of depth.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present invention, rather than whole embodiment, and those skilled in the art is not paying under the prerequisite of creative work, can also obtain other design schemes and accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of jump bit casing in the present invention;
Fig. 2 is the top view of jump bit in the present invention;
Fig. 3 is the upward view of jump bit in the present invention;
Fig. 4 is the structural representation that in the present invention, jump bit work is.
The specific embodiment
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is clearly and completely described, to understand fully object of the present invention, feature and effect.Obviously; described embodiment is a part of embodiment of the present invention, rather than whole embodiment, based on embodiments of the invention; other embodiment that those skilled in the art obtains under the prerequisite of not paying creative work, all belong to the scope of protection of the invention.In addition, all connection/annexations of mentioning in literary composition, not singly refer to that member directly joins, and refer to and can by adding or reducing, connect auxiliary according to concrete performance, form more excellent draw bail.
With reference to Fig. 1~Fig. 4, a kind of oblique pile embedding in rock punched hole construction method, it puts by the tubular jump bit of hollow 00 being promoted to certain distance processus aboralis steel pipe pile 6 free-fallings that jump bit 00 edge is tilted, and utilizes the impact kinetic energy impact extrusion soil layer of jump bit 00 or broken rock to form a stake hole.
As the further improvement of technique scheme, said method comprises the following steps:
1), stake position setting-out;
2), punching pile machine is in place;
3), the setting-out of position, hole, and the steel pipe pile 6 tilting at arrangement of boring holes;
4), the afterbody of jump bit 00 by jump bit hawser 7 be connected with punching pile machine, the head of jump bit 00 calls in steel pipe pile 6;
5), adjust the position of jump bit 00, the center line of jump bit 00 is overlapped with the center line of steel pipe pile 6;
6), jump bit 00 is promoted to certain distance processus aboralis put and make jump bit 00 along steel pipe pile 6 free-fallings, utilize the impact kinetic energy impact extrusion soil layer of jump bit 00 or broken rock to form a stake hole.
Be further used as preferred embodiment, in step 4), one end of jump bit hawser 7 ties up to the afterbody of jump bit 00, and the other end of jump bit hawser 7 makes the center line of jump bit 00 overlap with the center line of steel pipe pile 6 after walking around and tying up on punching pile machine after movable pulley 8.
Be further used as preferred embodiment, after step 6), by the anti-circulation cleaning of jet pump hole method, boring mud landwaste discharged, and secondary correction is carried out in stake position.
Be further used as preferred embodiment, at the bottom of the Length Ratio pore-forming of described jump bit 00, absolute altitude is to the distance 0.5 ~ 1m of absolute altitude at the bottom of steel pipe pile.
Utilize mobile crane punching pile machine yaw on operation platform, reserve stake position and jump bit 00 is aimed to steel pipe pile 6 center lines can carry out punching.During taper pile punching, the gradient direction of stake machine seat in the plane and taper pile is in alignment, adjust stake jump bit 00 and steel pipe pile 6 center lines and can start punching in line.When the steel platform scope of operation is inadequate, stake machine and steel pipe pile 6 cannot be put in line, an available movable pulley 8 ties up on jump bit hawser 7, changes jump bit 00 direction and carries out punching.During punching, part dregs is filled in the center lumen of jump bit 00, when absolute altitude at the bottom of hole reaches after design elevation, after jump bit 00 is taken out, most dregs can be taken out, remaining dregs utilizes jet pump to carry out scarfing cinder for the first time, utilizes mobile crane to lay reinforcing cage after scarfing cinder.Transfer after reinforcing cage, carry out secondary scarfing cinder, sediment thickness carries out embedding rock perfusion under water after reaching designing requirement on inspection.The present invention is applicable in the taper pile punching in 10 meters of the embedding rock degree of depth.
Be further used as preferred embodiment, described jump bit 00 comprises the columned casing 1 of hollow, and casing 1 is generally steel casing.Casing 1 wall thickness 2cm, its length is the above length of the embedding rock degree of depth+50cm, the first stiffener 2 that two of the afterbody crossbearers of described casing 1 are arranged in parallel, between two the first stiffeners 2, be welded with suspension ring 3, the head of casing 1 is installed a plurality of alloy tups 4, two of the head crossbearers of casing 1 are the second stiffener 5 that crosswise distributes, and the second stiffener 5 that is crosswise distribution increases the contact area of punching hammers and core, and alloy part tup 4 is arranged on the second stiffener.The thickness of the first stiffener 2 and the second stiffener 5 is 20mm, height 300mm.Described alloy tup 4 distributes along the even circumferential of casing 1.Such layout, is beneficial to alloy tup 4 core is smashed.The alloy tup 4 being arranged on the second stiffener 5 is linearly arranged along the second stiffener 5.By the columned casing 1 in hollow, when punching, its center of gravity, not at the head of casing 1, can efficiently solve card hammer phenomenon, reduces mechanical equipment fault, improves efficiency of construction so; Reduce the frictional resistance of pile monkey and steel pipe pile 6, accelerated the punching frequency, shortened the pore-forming time; Good guiding and correction effect are played in the location of Percussion Piles, greatly reduce Percussion Piles stand-off error, guarantee embedding rock quality; Can reduce the cooperation of crane ship in punched hole construction process, operation is simple, and economic benefit is obvious.
Be further used as preferred embodiment, the reserved bayonet socket 10 in inside of described casing 1 head position, described alloy tup 4 is welded on bayonet socket 10.Be convenient to the location of alloy tup 4 and be convenient to the alloy tup 4 of damage is replaced.Fixed head 20 is strengthened in the two ends welding of described the first stiffener 2.The thickness of strengthening fixed head 20 is 20mm, height 300mm.
Be further used as preferred embodiment, the inwall of described casing 1 is welded with many and runs through casing two ends channel-section steel end to end, and described channel-section steel distributes along the even circumferential along casing 1.The model of channel-section steel is No. 25.By welding channel-section steel, increase the weight of jump bit 00, the kinetic energy during for increasing the impact of jump bit 00, improves jump bit 00 stroke and accelerates speed of fulfiling hole.
Be further used as preferred embodiment, the outer wall of described casing 1 is welded with many and runs through casing two ends, reinforcing bar parallel to each other end to end, and described reinforcing bar distributes along the even circumferential of casing 1.Reinforcing bar is disc reinforcing bar, and its diameter is 10mm.
Be further used as preferred embodiment, described reinforcing bar is spirally coiled on casing 1 outer wall, and the angle between reinforcing bar and casing 1 axis is 1 ~ 3 °.By spiral reinforcing bar, reduce while impacting the frictional force with steel pipe walls, make block stamp in work progress, have certain rotation, avoid hole bed rock layer to form salient point, affect planeness at the bottom of hole quality assurance hole.
More than that better embodiment of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and the modification that these are equal to or replacement are all included in the application's claim limited range.

Claims (10)

1. an oblique pile embedding in rock punched hole construction method, it is characterized in that: it,, by the tubular jump bit lifting certain distance processus aboralis of hollow is put and made jump bit along the steel pipe pile free-falling of tilting, utilizes the impact kinetic energy impact extrusion soil layer of jump bit or broken rock to form a stake hole.
2. oblique pile embedding in rock punched hole construction method according to claim 1, is characterized in that: it comprises the following steps:
1), stake position setting-out;
2), punching pile machine is in place;
3), the setting-out of position, hole, and the steel pipe pile tilting at arrangement of boring holes;
4), the afterbody of jump bit by jump bit hawser be connected with punching pile machine, the head of jump bit calls in steel pipe pile;
5), adjust the position of jump bit, the center line of jump bit and the center line of steel pipe pile are overlapped;
6), jump bit is promoted to certain distance processus aboralis put and make jump bit along steel pipe pile free-falling, utilize the impact kinetic energy impact extrusion soil layer of jump bit or broken rock to form a stake hole.
3. oblique pile embedding in rock punched hole construction method according to claim 2, it is characterized in that: in step 4), one end of jump bit hawser ties up to the afterbody of jump bit, the other end of jump bit hawser overlaps the center line of jump bit and the center line of steel pipe pile after walking around and tying up on punching pile machine after movable pulley.
4. oblique pile embedding in rock punched hole construction method according to claim 2, is characterized in that: after step 6), by the anti-circulation cleaning of jet pump hole method, boring mud landwaste is discharged, and secondary correction is carried out in stake position.
5. according to the oblique pile embedding in rock punched hole construction method described in claim 1 ~ 4 any one, it is characterized in that: at the bottom of the Length Ratio pore-forming of described jump bit, absolute altitude is to the distance 0.5 ~ 1m of absolute altitude at the bottom of steel pipe pile.
6. according to the oblique pile embedding in rock punched hole construction method described in claim 1 ~ 4, it is characterized in that: described jump bit comprises the columned casing of hollow, the first stiffener that two of the afterbody crossbearers of described casing are arranged in parallel, between two the first stiffeners, be welded with suspension ring, the head of casing is installed a plurality of alloy tups, two of the head crossbearers of casing are the second stiffener that crosswise distributes, and alloy part tup is arranged on the second stiffener.
7. oblique pile embedding in rock punched hole construction method according to claim 6, is characterized in that: the reserved bayonet socket in inside of described casing head position, described alloy tup is welded on bayonet socket.
8. oblique pile embedding in rock punched hole construction method according to claim 6, is characterized in that: the inwall of described casing is welded with many and runs through casing two ends channel-section steel end to end, and described channel-section steel distributes along the even circumferential along casing.
9. oblique pile embedding in rock punched hole construction method according to claim 6, is characterized in that: the outer wall of described casing is welded with many and runs through casing two ends, reinforcing bar parallel to each other end to end, and described reinforcing bar distributes along the even circumferential of casing.
10. oblique pile embedding in rock punched hole construction method according to claim 9, is characterized in that: described reinforcing bar is spirally coiled on casing outer wall, and the angle between reinforcing bar and casing axis is 1 ~ 3 °.
CN201410019059.5A 2014-01-15 2014-01-15 Raked pile rock-socketed punching construction method Pending CN103758128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410019059.5A CN103758128A (en) 2014-01-15 2014-01-15 Raked pile rock-socketed punching construction method

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Application Number Priority Date Filing Date Title
CN201410019059.5A CN103758128A (en) 2014-01-15 2014-01-15 Raked pile rock-socketed punching construction method

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105649081A (en) * 2016-01-14 2016-06-08 中铁大桥局集团有限公司 Multistage guiding support for oblique inserting piling of super long and large diameter pile
CN111663892A (en) * 2020-05-05 2020-09-15 江西省地质工程(集团)公司 Rock-socketed inclined pile impact drilling pile-forming construction process
CN112282656A (en) * 2020-11-11 2021-01-29 江西省地质工程(集团)公司 Barrel type efficient percussion drill bit for rock-socketed batter pile construction

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CN202970485U (en) * 2012-10-19 2013-06-05 深圳市孺子牛建设工程有限公司 Cylinder guide type percussive drill bit

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Publication number Priority date Publication date Assignee Title
CN2359333Y (en) * 1999-01-29 2000-01-19 金长海 Soil bolt, taper pile and nonopen digging buried pipe hammering device
KR20100093238A (en) * 2009-02-16 2010-08-25 송기용 Hammer cap, hammer cooling water supply apparatus, silencer, drilling apparatus having such caps and water supply apparatus, and drilling method using such apparatus
CN102261071A (en) * 2011-04-26 2011-11-30 中交四航工程研究院有限公司 Design, production and use of novel free fall hammer
CN202970485U (en) * 2012-10-19 2013-06-05 深圳市孺子牛建设工程有限公司 Cylinder guide type percussive drill bit

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105649081A (en) * 2016-01-14 2016-06-08 中铁大桥局集团有限公司 Multistage guiding support for oblique inserting piling of super long and large diameter pile
CN105649081B (en) * 2016-01-14 2018-07-17 中铁大桥局集团有限公司 A kind of oblique inserting piling multistage guiding trestle of super long-large diameter pile
CN111663892A (en) * 2020-05-05 2020-09-15 江西省地质工程(集团)公司 Rock-socketed inclined pile impact drilling pile-forming construction process
CN112282656A (en) * 2020-11-11 2021-01-29 江西省地质工程(集团)公司 Barrel type efficient percussion drill bit for rock-socketed batter pile construction

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