CN104763328A - Hydraulic reaming circulation drilling machine and reaming pile construction technology thereof - Google Patents

Hydraulic reaming circulation drilling machine and reaming pile construction technology thereof Download PDF

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Publication number
CN104763328A
CN104763328A CN201510155922.4A CN201510155922A CN104763328A CN 104763328 A CN104763328 A CN 104763328A CN 201510155922 A CN201510155922 A CN 201510155922A CN 104763328 A CN104763328 A CN 104763328A
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China
Prior art keywords
reaming
hydraulic
drilling rod
hole
mast
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CN201510155922.4A
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Chinese (zh)
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CN104763328B (en
Inventor
洪灵正
尚君方
庄光明
黄飞
吴国生
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宁波易和桩基工程技术开发有限公司
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Priority to CN201510155922.4A priority Critical patent/CN104763328B/en
Publication of CN104763328A publication Critical patent/CN104763328A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP 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
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/44Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/48Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0061Production methods for working underwater
    • E02D2250/0076Drilling

Abstract

The invention discloses a hydraulic reaming circulation drilling machine. The hydraulic reaming circulation drilling machine comprises a pile machine main body, and a mast and a mast support mechanism which are installed on the pile machine main body, and is characterized in that a faucet is installed on the upper end portion of the mast, a hydraulic device which can transmit hydraulic pressure to the faucet is fixedly connected with the bottom of the faucet, a drill rod which can transmit hydraulic pressure to the hydraulic device is fixedly connected with the bottom of the hydraulic device, a power head which drives the drill rod to rotate is installed on the lower end portion of the mast, and a reaming drill bit which performs hydraulic reaming under action of the hydraulic device is installed at the bottom of the drill rod. The invention further discloses a reaming pile construction technology of the hydraulic reaming circulation drilling machine. The hydraulic reaming circulation drilling machine and the reaming pile construction technology thereof have the advantages of 1, achieving integration of drilling, reaming and hole cleaning, and being high in construction efficiency; 2, being stable and reliable in reaming action, and high in efficiency by using the reaming drill bit driven through the hydraulic pressure; 3, performing the slurry circulation hole cleaning in the reaming, and achieving good reaming quality; 4, being strong in reaming ability, and enabling the maximum reaming diameter to reach above 2m.

Description

A kind of hydraulic pressure reaming circulation drilling machine and hole-expanding pile construction technology thereof

Technical field

The present invention relates to a kind of pile driver, especially relate to a kind of hydraulic pressure reaming circulation drilling machine and hole-expanding pile construction technology thereof.

Background technology

In high level and super highrise building process of construction, all need to drive piles, the pile driver of various different structure is had in prior art, if the patent No. is " multifunctional pile driver " disclosed in the Chinese utility model patent of ZL 99237847.8 (Authorization Notice No. is CN 2375670 Y), this multifunctional pile driver is made up of upper and lower chassis, pylon, strut, drilling rod, drilling tool, lifting gear and bracing frame, and this multifunctional pile driver is easy to use and cost is lower.And for example the patent No. is " pile driver " disclosed in the Chinese utility model patent of ZL201120217172.6 (Authorization Notice No. is CN 202131986 U), this pile driver comprises owner's body, main body is provided with mast and mast supporting mechanism, abrasive-disk faucet is provided with at the sidepiece of mast, be connected with drilling rod below abrasive-disk faucet, during the work of this pile driver, drilling rod rotates and starts piling, start slush pump, utilize reverse circulation system that mud and small stone are discharged into outside by the water tap above abrasive-disk faucet.And for example the patent No. is " pile driver " disclosed in the Chinese utility model patent of ZL 201120319000.X (Authorization Notice No. is CN 202214727 U), the top that this pile driver comprises chassis, car body of getting on the bus is arranged on chassis, get on the bus on car body and be provided with turntable, the lower end of jib is hinged on turntable, pile frame is vertically arranged, pile frame top is connected with jib upper end, pile frame comprises guide rail, guide rail is arranged on the support body of pile frame along the bearing of trend of pile frame, and pile hammer can move up and down along guide rail.Above-mentioned disclosed several pile driver is all without hole expansion function, and when carrying out reaming to pile foundation, also need to adopt reaming rig to carry out reaming in addition, operation comparatively bothers.

In addition, along with the development of China's modernization construction, the high level in engineering construction and super highrise building get more and more, to the bearing capacity of pile foundation and the requirement of construction technology also more and more higher.Implement reaming construction to pile foundation and can increase substantially bearing capacity of single pile, save construction costs, therefore there is various pile foundation counter-boring techniques and corresponding equipment in pile foundation construction field.Existing pile foundation counter-boring techniques can be divided into rammer expansion, explosive expansion according to reaming principle, manually digging hole expands the end and reaming bit expands the end etc.Reaming bit reaming mode comparatively other reaming mode applied ranges in these base-enlarging methods, reaming better quality, more advanced, correspondingly, reaming bit reaming mainly contains following three kinds of modes at present: squeezed, bores and expands, revolve and dig reaming (hydraulic pressure).

Squeezed technology, after routine has been holed, puts into squeeze equipment, utilizes hydraulic cylinder to be opened by squeezed arm, formed in hole and expand branch, to form plate-like, then must at the once squeezed arm of squeezed rear withdrawal, to rotate to an angle and squeezed again, after so many time, form plate-like enlarged cavity.The unidirectional squeezed two-way squeezed castinplace pile of three troubles to recent years of squeezed mode both arms from the beginning.Bore the employing of expansion technology to improve on the drill bit of conventional reverse circulation slewing drilling machine, make it have hole expansion function.Existing brill expansion technology reaming bit is all mechanical type unfolding mode, and the porose base pressure of common unfolding mode is opened and opened two kinds of modes with reversion.Hole base pressure evolution formula be reaming bit at the bottom of below to hole after, utilize drilling tool own wt and top to exert pressure, reaming bit pressed off, at the bottom of hole, carry out reaming.Reversion unfolding mode is that reaming bit blade when rotating forward draws in, and during reversion, blade is opened mechanically, can carry out reaming in appointment hole depth.Revolve dig counter-boring techniques be represented as AM engineering method (revolve and dig bottom-enlarging filling pile), this technology results from Japan, after conventional straight hole pore-forming completes, adopt the AM engineering method Spiral digging machine that reaming bit is housed, open reaming bit with hydraulic control mode on appointment rotation limit, hole depth limit and realize revolving digging reaming.Certain defect is there is separately in above-mentioned various counter-boring techniques in the stability of reaming ability, reaming and reliability and efficiency of construction.

In sum, need to be further improved the technique of existing rig and hole-expanding pile construction.

Summary of the invention

First technical problem to be solved by this invention is for above-mentioned prior art present situation, provides a kind of ream operation stable, reliable, the high and reaming matter measured hydraulic pressure reaming circulation drilling machine of efficiency of construction.

The present invention solves the technical scheme that above-mentioned first technical problem adopt: this hydraulic pressure reaming circulation drilling machine, the mast comprising owner's body and be arranged on owner's body and mast supporting mechanism, it is characterized in that: the water tap that the relative mast of energy moves up and down is installed in the upper end of described mast, be fixedly connected with bottom described water tap and can carry out the hydraulic means of hydraulic coupling transmission with water tap, be fixedly connected with in the bottom of hydraulic means and can carry out the drilling rod of hydraulic coupling transmission with hydraulic means, be provided with in the bottom of described mast and can move up and down and unit head for driving drilling rod to rotate relative to mast, the reaming bit that can carry out hydraulic pressure reaming under hydraulic means effect is installed in the bottom of described drilling rod.

Preferably, described water tap comprises the mounting bracket be located on mast and the shell be fixed on mounting bracket, the rotary body that energy opposite shell rotates is provided with in the inside of described shell, the sidewall of shell has fuel feed hole, oil outlet and mud injection hole, oil inlet passage is provided with in the inside of described rotary body, oil discharge passage and slurry channel, described oil inlet passage is connected with described fuel feed hole, described oil discharge passage is connected with described oil outlet, described slurry channel is connected with described mud injection hole, described hydraulic means there is the inside of stretching into described rotary body and with described oil inlet passage, the hydraulic tube that oil discharge passage is connected, described slurry channel passes through the passage of hydraulic means inside and described drilling rod intracavity inter-connection.After adopting above-mentioned syndeton, the rotation physical efficiency opposite shell of water tap rotates, and in rotary body rotary course, mud inputs except the function of drilling rod except realizing by water tap, and then drilling rod will can also be delivered in the hydraulic means being delivered to below water tap of hydraulic coupling.

Described reaming bit can have various structures, preferably, described reaming bit includes guide cylinder, telescoping cylinder, upper connecting base, lower connecting base, reamer arm and apex point, described upper connecting base is fixed on the top of described telescoping cylinder and fixes with upper guide cylinder simultaneously, the expansion link lower end of described telescoping cylinder is fixedly connected with described lower connecting base, described reamer arm has two at least, every bar reamer arm comprises be hinged upper reamer arm and UR arm, upper end and the described upper connecting base of described upper reamer arm are hinged, lower end and the described lower connecting base of described UR arm are hinged, described apex point is arranged on the below of lower connecting base, described drilling rod and upper guide cylinder fix, and described drilling rod has and is fixedly connected with and the pull bar that can move up and down under described hydraulic means effect with lower connecting base.Like this, hydraulic means just can drive reamer arm open or draw in by driving pull bar to move up and down.

Preferably, described drilling rod comprises a kelly driven by described unit head and is connected at least one driven drilling rod below kelly.

Drilling rod can have multiple different syndeton, described driven drilling rod at least includes the first driven drilling rod and the second driven drilling rod, the first pull bar that driven drilling rod is long together with first is coaxially arranged with in the first driven drilling rod, the second pull bar that driven drilling rod is long together with second is coaxially arranged with in the second driven drilling rod, the periphery wall of the first pull bar link has first ring connected in star, the periphery wall of the second pull bar link has the second annular groove, be embedded with respectively in described first ring connected in star and the second annular groove and be nested with, and the internal perisporium be nested with contacts with the periphery wall of the first pull bar and the second pull bar correspondence position, tighten at the described periphery wall be nested with and be wrapped with outer adapter sleeve, free gap is left between the periphery wall of described outer adapter sleeve and the internal perisporium of the first driven drilling rod and the second driven drilling rod.In addition, the syndeton between kelly with driven drilling rod is identical with the syndeton between above-mentioned driven drilling rod.

Can move up and down smoothly to make water tap and unit head, first assembly pulley and the second assembly pulley are installed on the top of described mast, the first described assembly pulley is arranged with the first landing lifting rope for lifting by crane described water tap, the second described assembly pulley is arranged with the second landing lifting rope, described mast is provided with the guiding slide bar slided up and down for described water tap and unit head.Second landing lifting rope is used for hanging drilling rod when stacks, hangs reinforcing cage during descending reinforcing cage, is also used for hanging conduit etc.

Second technical problem to be solved by this invention is for above-mentioned prior art present situation, there is provided a kind of and can realize boring, reaming, clearly hole integrally, can mud circulation be carried out when reaming and without the hole-expanding pile construction technology of the hydraulic pressure reaming circulation drilling machine of sediment in enlarged cavity.

The present invention solves the technical scheme that above-mentioned second technical problem adopt: a kind of hole-expanding pile construction technology of hydraulic pressure reaming circulation drilling machine, is characterized in that comprising the steps:

(1), boring drill centering in place;

(2), straight hole creeps into design counterbore depth;

(3), apply described hydraulic pressure reaming circulation drilling machine and carry out at the bottom of expansion or Multi-section reaming at design attitude, and while reaming, carry out the clear hole of mud circulation;

(4), hydraulic pressure reaming circulation drilling machine carries out once clear hole;

(5), detect hole depth, aperture, enlarged footing cavity layer position and diameter;

(6), after enlarged footing meets designing requirement, transfer reinforcing cage;

(7), secondary pile hole cleaning; Secondary pile hole cleaning is generally by transferring conduit to realize;

(8), sediment at the bottom of hole measures;

(9), sediment at the bottom of hole carries out underwater concrete pouring after measuring and meeting designing requirement

(10), hole-expanding pile, Multi-section reaming pile pile, maintenance.

Preferably, step (3) in expansion at the bottom of or Multi-section reaming specifically include following steps:

1., when the reaming bit of rig reaches design counterbore depth, Unscrew reaming bit is to design angle;

2., rig digital control system Auto-matching drill bit rate of penetration and reaming speed, keep enlarged footing lateral layout angle constant and creep into downwards, until reaming bit is flared to design counter bore diameter;

3., keep diameter of ream bit constant after enlarged footing reaches designing requirement when aperture detection system detects and creep into 0.3 ~ 0.4m downwards;

4., reaming bit stop move down, upwards slightly carry drilling rod, reaming bit original place rotate carries out the clear hole of mud circulation;

5., clear hole completes rotation limit, back and draws reaming bit in until all regain, and reaming has been constructed.

Further preferably, described step (1) in boring drill adopt described in hydraulic pressure reaming circulation drilling machine or Other Engineering stake machine.

Further preferably, also specifically comprised the steps: before described step boring drill (1) centering in place

A, smooth location;

B, the setting-out of stake position;

C, bury casing underground.

Compared with prior art, the invention has the advantages that: 1, realize boring, reaming, clear hole one, efficiency of construction is high; 2, by adopting hydraulically powered reaming bit, reaming effect is stable, reliable, and efficiency is high; 3, can carry out mud circulation clear hole during reaming, without sediment in enlarged cavity, reaming quality is good; 4, reaming ability is strong, and maximum diameter of enlarged bore can reach more than 2m, can carry out reaming on stratum such as old clay, Compact sandy-pebble layer, strong-weathered rocks.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is the structural representation of embodiment of the present invention water tap;

The structure sectional view that Fig. 3 is water tap shown in Fig. 2;

Fig. 4 is the structural representation of embodiment of the present invention reaming bit;

Fig. 5 is embodiment of the present invention drilling rod syndeton schematic diagram;

Fig. 6 is the perspective exploded view of Fig. 5;

Fig. 7 is the sectional view of the syndeton of drilling rod shown in Fig. 5;

Fig. 8 is the enlarged diagram of part A in Fig. 7;

Fig. 9 is the flow chart of hole-expanding pile construction technology in the embodiment of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.

As shown in Figure 1, the hydraulic pressure reaming circulation drilling machine (HRCR rig) in the present embodiment comprises the primary clusterings such as owner's body 1, mast 2, mast supporting mechanism 3, water tap 4, hydraulic means 5, drilling rod, unit head 7, reaming bit 8, assembly pulley, landing lifting rope, crawler body 10.This HRCR rig is configured with visual control system, can show real-time counterbore depth, counter bore diameter, reaming oil cylinder stroke, unit head rotary speed; Dynamic Announce reaming procedure; The each current of electric of monitoring rig etc., mechanical automation is high, reduces labour demand and effectively reduces security incident probability of happening.

Wherein, crawler body 10 is arranged on bottom owner's body 1, mast 2 and mast supporting mechanism 3 are arranged on owner's body 1, water tap 4 is arranged on the upper end of mast 2 and can relatively moves up and down by mast, the reaming oil cylinder that hydraulic means 5 is above-mentioned for the hydraulic cylinder be fixedly connected on bottom water tap 4 is, realizes hydraulic coupling transmission between water tap 4 and hydraulic means 5.Drilling rod is fixedly connected on the bottom of hydraulic means 5, hydraulic coupling transmission is realized between hydraulic means 5 and drilling rod, unit head 7 is arranged on the bottom of mast 2 and can relatively moves up and down by mast 2, and mast 2 is provided with oil cylinder 21, and oil cylinder 21 can drive unit head 7 to move up and down.Drilling rod shown in Fig. 1 is kelly 6, and kelly 6 is through on unit head 7, and drive kelly 6 to rotate by unit head 7, reaming bit 8 is fixedly connected on the bottom of kelly 6.Certainly, in Specific construction process, generally have the below that many driven drilling rods are connected to kelly, now, reaming bit 8 is arranged on the bottom of the driven drilling rod of bottom, and under the effect of hydraulic means 5, realizes hydraulic pressure reaming equally.

Assembly pulley comprises and is arranged on mast 2 top first assembly pulley 91 and the second assembly pulley 92, accordingly, landing lifting rope comprises the first landing lifting rope 93 of winding on the first assembly pulley 91 and the second landing lifting rope 94 of winding on the second assembly pulley 92, in the present embodiment, landing lifting rope all adopts wire rope and is controlled by hoist engine.First landing lifting rope 93 is used for lifting by crane water tap 4 and moves up, because water tap 4, hydraulic means 5 and drilling rod all link together, thus the first landing lifting rope 93 can drive drilling rod to move up, second landing lifting rope 94 is used for hanging drilling rod when stacks, hang reinforcing cage during descending reinforcing cage, be also used for hanging conduit etc.Water tap 4 and unit head 7 all rely on self gravitation to move down.In addition, more smooth in order to make water tap 4 and unit head 7 move up and down, mast 2 is provided with the guiding slide bar 21 that faucet 4 and unit head about 7 slide.

As shown in Figures 2 and 3, water tap 4 in the present embodiment comprises the mounting bracket 41 be located on mast 2 and the shell 42 be fixed on mounting bracket, the rotary body 43 that energy opposite shell rotates is provided with in the inside of shell 42, the sidewall of shell 42 has fuel feed hole 44, oil outlet 45 and mud injection hole 46, oil inlet passage 47 is provided with in the inside of rotary body 43, oil discharge passage 48 and slurry channel 49, oil inlet passage 47 is connected with fuel feed hole 44, oil discharge passage 48 is connected with oil outlet 45, slurry channel 49 is connected with mud injection hole 46, hydraulic means 5 there is the inside of stretching into rotary body 43 and with oil inlet passage 47, the hydraulic tube that oil discharge passage 48 is connected, slurry channel 49 passes through passage and the drilling rod intracavity inter-connection of hydraulic means 5 inside.In addition, in order to make rotary body 43 smooth rotation, bearing 40 is installed between rotary body 43 and shell 42.

In the present embodiment, the concrete connectivity structure of asphalt channel and slurry channel is as follows: on the periphery wall of rotary body 43, have the first cannelure, second cannelure and the 3rd cannelure, the correspondence position of shell 42 internal perisporium has the first groove of annular spread, second groove and the 3rd groove, it is the first circular circular passage 401 that first groove and the first cannelure split form cross section, it is the second circular circular passage 402 that second groove and the second cannelure split form cross section, it is the 3rd circular circular passage 403 that 3rd groove and the 3rd cannelure split form cross section.Fuel feed hole 44 is connected with oil-feed logical 47 by the first circular passage 401, and oil outlet 45 is connected with oil discharge passage 48 by the second circular passage 402, and mud injection hole 46 is connected with slurry channel 49 by the 3rd circular passage 403.

During rig work, unit head 7 drives that drilling rod rotates, rotary body 43 synchronous axial system of hydraulic means 5 and water tap 4, the shell 42 of water tap 4 maintains static, in drilling rod, hydraulic means 5 and rotary body 43 rotation process, mud injects in water tap 4 from mud injection hole 46, and flow in drilling rod after flowing through the passage of slurry channel 49 and hydraulic means 5 inside successively, and water tap 4 carries out hydraulic coupling transmission by oil inlet passage 47 and oil discharge passage 48 with hydraulic means 5, hydraulic coupling is finally delivered to reaming bit 8, realizes hydraulic pressure reaming by reaming bit 8.

As shown in Figure 4, reaming bit 8 in the present embodiment includes guide cylinder 81, telescoping cylinder 82, upper connecting base 83, lower connecting base 84, reamer arm 85 and apex point 86, upper connecting base 83 is fixed on the top of telescoping cylinder 82 and fixes with upper guide cylinder 81 simultaneously, expansion link 821 lower end of telescoping cylinder 82 is fixedly connected with lower connecting base 84, and expansion link 821 inside is connected with drilling rod inside.Reamer arm 85 comprises be hinged upper reamer arm 851 and UR arm 852, upper end and the upper connecting base 83 of upper reamer arm 851 are hinged, lower end and the lower connecting base 84 of UR arm 852 are hinged, apex point 86 is arranged on the below of lower connecting base 84, drilling rod bottom and upper guide cylinder 81 fix, the pull bar of drilling rod is fixedly connected with lower connecting base 84, and pull bar moves up and down under hydraulic means 5 acts on.

In order to make ream operation more stable, reliable, reamer arm 85 in the present embodiment adopts four and circumferentially-spaced along upper connecting base 83 and lower connecting base 84 is uniformly distributed, the upper reamer arm 851 and UR arm 852 of reamer arm are all provided with pick 853, and pick 853 is arranged on the lateral surface of reamer arm 851 and UR arm 852 and stretches out, pick 853 is spaced apart along the length direction of upper reamer arm 851 and UR arm 852, and apex point 6 is also provided with pick.In addition, the Counterboring apparatus in the present embodiment can also be controlled by the expansion angle of controlling organization to upper reamer arm 851 and UR arm 852, thus can according to ream operation need regulate counter bore diameter.

During Counterboring apparatus work, hydraulic means 5 drives the pull bar in drilling rod to move up, pull bar drives lower connecting base 84 and expansion link 821 to move up, and then reamer arm 85 is expanded, reaming bit 8 rotates simultaneously, reaming bit 8 carries out ream operation, and because reaming bit 8 carries out reaming by hydraulic-driven, reaming ability is strong.After reaming, hydraulic means 5 drives pull bar to move down, and pull bar drives lower connecting base 84 and expansion link 821 to move down, and then reamer arm 85 is drawn in.

As shown in Fig. 5 to Fig. 8, the present embodiment is described for the syndeton between driven drilling rod, and the link of the first driven drilling rod 61 and the second driven drilling rod 62 all with adpting flange 67, and is connected and fixed by bolt 68.The first pull bar 63 that driven drilling rod is long together with first is coaxially arranged with in the first driven drilling rod 61, the end face being coaxially arranged with the second pull bar 64, first pull bar 63 link that driven drilling rod 62 is long together with second in the second driven drilling rod 62 adopts male and fomale(M&F) to coordinate with the end face of the second pull bar 64 link.The periphery wall of the first pull bar 63 link has first ring connected in star 631, the periphery wall of the second pull bar 64 link has the second annular groove 641, be embedded with respectively in first ring connected in star 631 and the second annular groove 641 and be nested with 65, and the internal perisporium being nested with 65 contacts with the periphery wall of the first pull bar 63 and the second pull bar 64 correspondence position, tighten at the periphery wall being nested with 65 and be wrapped with outer adapter sleeve 66, the periphery wall of outer adapter sleeve 66 and leave free gap between the first driven drilling rod 61 and the internal perisporium of the second driven drilling rod 62.In addition, be fixed with the first retainer ring 632, first retainer ring 632 at the link of the first pull bar 63 and be positioned at the inner side of first ring connected in star 631, and leaving free gap between the first retainer ring 632 and the internal perisporium of the first driven drilling rod 61.Be fixed with the second retainer ring 642, second retainer ring 642 at the link of the second pull bar 64 and be positioned at the inner side of the second annular groove 641, and leaving free gap between the second retainer ring 642 and the internal perisporium of the second driven drilling rod 62.The object of the first retainer ring 632 and the second retainer ring 642 is adopted to be produce radial displacement while the first pull bar 63 and the second pull bar 64 move axially.

After adopting above-mentioned syndeton between driven drilling rod, first pull bar 63 link and the second pull bar 64 link are connected and fixed by being nested with 65, and be nested with the 65 outer outer adapter sleeves 66 by close-fitting to strengthen the connection between the first pull bar 63 and the second pull bar 64 further, and the first pull bar 63 after connecting and the second pull bar 64 axially can move freely in the drilling rod of correspondence, this syndeton not only structure is simple but also be connected firmly, improve reliability and the controllability of reaming power transmission, thus improve the reaming quality of reaming bit.Syndeton between kelly with driven drilling rod is identical with above-mentioned syndeton, does not launch to describe at this

As shown in Figure 9, the hole-expanding pile construction technology of the hydraulic pressure reaming circulation drilling machine in the present embodiment adopts following steps:

(1), boring drill centering in place;

, straight hole creep into design counterbore depth, namely reaming bit creeps into downwards under rounding state, and adopts mud off;

(3), application HRCR rig carries out at the bottom of expansion or Multi-section reaming at design attitude, and while reaming, carries out the clear hole of mud circulation;

(4), HRCR rig carries out once clear hole;

(5), detect hole depth, aperture, enlarged footing cavity layer position and diameter;

(6), after enlarged footing meets designing requirement, transfer reinforcing cage;

(7), secondary pile hole cleaning; Secondary pile hole cleaning is generally by transferring conduit to realize;

(8), sediment at the bottom of hole measures;

(9), sediment at the bottom of hole carries out underwater concrete pouring after measuring and meeting designing requirement;

(10), hole-expanding pile, Multi-section reaming pile pile, maintenance.

Wherein can adopt this HRCR rig or Other Engineering stake machine at boring drill, and before step is (1), adopts following preliminary step:

A, smooth location;

B, the setting-out of stake position;

C, bury casing underground.

In addition, correspond to the step step that can realize the clear hole of mud circulation in reaming procedure (3) in the present embodiment and can be decomposed into again following a few sub-steps:

1., when the reaming bit of rig reaches design counterbore depth Unscrew reaming bit to design angle;

2., rig digital control system Auto-matching drill bit rate of penetration and reaming speed, keep enlarged footing lateral layout angle constant and creep into downwards, until reaming bit is flared to design counter bore diameter;

3., keep diameter of ream bit constant after enlarged footing reaches designing requirement when aperture detection system detects and creep into 0.3 ~ 0.4m downwards;

4., reaming bit stop move down, upwards slightly carry drilling rod, reaming bit original place rotate carries out the clear hole of mud circulation;

5., clear hole completes rotation limit, back and draws reaming bit in until all regain, and reaming has been constructed.

If design pile body has multiple enlarged footing, then draw reaming bit in and continue to creep into downwards, carry out ream operation at different designs counterbore depth place by said process successively, until complete the drilling construction of Multi-section reaming pile.

In sum, the HRCR rig in the present embodiment is all-hydraulic Novel drill, expansion, clear one pile-forming equipment, and this HRCR rig can be widely used in the pore-forming of the foundation piles such as highrise building, bridge, harbour and reaming is constructed.The reaming of HRCR rig is succinct, reliable, efficient, and after reaming, bearing capacity of single pile can improve 30 ~ 50%, significantly saves construction costs, and economic benefit is obvious, is with a wide range of applications.

Claims (10)

1. a hydraulic pressure reaming circulation drilling machine, comprise owner's body (1) and the mast (2) be arranged on owner's body and mast supporting mechanism (3), it is characterized in that: the water tap (4) that the relative mast of energy moves up and down is installed in the upper end of described mast (2), be fixedly connected with in described water tap (4) bottom and can carry out the hydraulic means (5) of hydraulic coupling transmission with water tap, be fixedly connected with in the bottom of hydraulic means (5) and the drilling rod of hydraulic coupling transmission can be carried out with hydraulic means, be provided with in the bottom of described mast (2) and can move up and down and unit head (7) for driving drilling rod to rotate relative to mast, the reaming bit (8) that can carry out hydraulic pressure reaming under hydraulic means (5) effect is installed in the bottom of described drilling rod.
2. hydraulic pressure reaming circulation drilling machine according to claim 1, it is characterized in that: described water tap (4) comprises the mounting bracket (41) be located on mast (2) and the shell (42) be fixed on mounting bracket, the rotary body (43) that energy opposite shell rotates is provided with in the inside of described shell (42), the sidewall of shell (42) has fuel feed hole (44), oil outlet (45) and mud injection hole (46), oil inlet passage (47) is provided with in the inside of described rotary body (43), oil discharge passage (48) and slurry channel (49), described oil inlet passage (47) is connected with described fuel feed hole (44), described oil discharge passage (48) is connected with described oil outlet (45), described slurry channel (49) is connected with described mud injection hole (46), described hydraulic means (5) there is the inside of stretching into described rotary body (43) and with described oil inlet passage (47), the hydraulic tube that oil discharge passage (48) is connected, described slurry channel (49) is by the inner passage of hydraulic means (5) and described drilling rod intracavity inter-connection.
3. hydraulic pressure reaming circulation drilling machine according to claim 1, it is characterized in that: described reaming bit (8) includes guide cylinder (81), telescoping cylinder (82), upper connecting base (83), lower connecting base (84), reamer arm (85) and apex point (86), described upper connecting base (83) is fixed on the top of described telescoping cylinder (82) and fixes with upper guide cylinder (81) simultaneously, expansion link (821) lower end of described telescoping cylinder (82) is fixedly connected with described lower connecting base (84), described reamer arm (85) has two at least, every bar reamer arm (85) comprises be hinged upper reamer arm (851) and UR arm (852), upper end and the described upper connecting base (83) of described upper reamer arm (851) are hinged, lower end and the described lower connecting base (84) of described UR arm (852) are hinged, described apex point (86) is arranged on the below of lower connecting base (84), described drilling rod and upper guide cylinder (81) fix, and described drilling rod has and is fixedly connected with and the pull bar that can move up and down under described hydraulic means (5) acts on lower connecting base (84).
4. hydraulic pressure reaming circulation drilling machine according to claim 1, is characterized in that: described drilling rod comprises a kelly (6) driven by described unit head (7) and is connected at least one driven drilling rod of kelly (6) below.
5. hydraulic pressure reaming circulation drilling machine according to claim 4, it is characterized in that: described driven drilling rod at least includes the first driven drilling rod (61) and the second driven drilling rod (62), the first pull bar (63) that driven drilling rod is long together with first is coaxially arranged with in the first driven drilling rod (61), the second pull bar (64) that driven drilling rod (62) is long together with second is coaxially arranged with in the second driven drilling rod (62), the periphery wall of the first pull bar (63) link has first ring connected in star (631), the periphery wall of the second pull bar (64) link has the second annular groove (641), be embedded with respectively in described first ring connected in star (631) and the second annular groove (641) and be nested with (65), and the internal perisporium being nested with (65) contacts with the periphery wall of the first pull bar (63) and the second pull bar (64) correspondence position, tighten at the described periphery wall being nested with (65) and be wrapped with outer adapter sleeve (66), free gap is left between the periphery wall of described outer adapter sleeve (66) and the internal perisporium of the first driven drilling rod (61) and the second driven drilling rod (62).
6. hydraulic pressure reaming circulation drilling machine according to claim 1, it is characterized in that: the first assembly pulley (91) and the second assembly pulley (92) are installed on the top of described mast (2), described the first assembly pulley (91) is arranged with the first landing lifting rope (93) for lifting by crane described water tap (4), described the second assembly pulley (92) is arranged with the second landing lifting rope (94), described mast (2) is provided with the guiding slide bar (21) slided up and down for described water tap (4) and unit head (7).
7. the hole-expanding pile construction technology of hydraulic pressure reaming circulation drilling machine as described in claim arbitrary in claim 1 to 6, is characterized in that comprising the steps:
(1), boring drill centering in place;
(2), straight hole creeps into design counterbore depth;
(3), apply described hydraulic pressure reaming circulation drilling machine and carry out at the bottom of expansion or Multi-section reaming at design attitude, and while reaming, carry out the clear hole of mud circulation;
(4), hydraulic pressure reaming circulation drilling machine carries out once clear hole;
(5), detect hole depth, aperture, enlarged footing cavity layer position and diameter;
(6), after enlarged footing meets designing requirement, transfer reinforcing cage;
(7), secondary pile hole cleaning;
(8), sediment at the bottom of hole measures;
(9), sediment at the bottom of hole carries out underwater concrete pouring after measuring and meeting designing requirement
(10), hole-expanding pile, Multi-section reaming pile pile, maintenance.
8. hole-expanding pile construction technology according to claim 7, is characterized in that at the bottom of the expansion during described step is (3) or Multi-section reaming specifically includes following steps:
1., when the reaming bit of rig reaches design counterbore depth, Unscrew reaming bit is to design angle;
2., rig digital control system Auto-matching drill bit rate of penetration and reaming speed, keep enlarged footing lateral layout angle constant and creep into downwards, until reaming bit is flared to design counter bore diameter;
3., keep diameter of ream bit constant after enlarged footing reaches designing requirement when aperture detection system detects and creep into 0.3 ~ 0.4m downwards;
4., reaming bit stop move down, upwards slightly carry drilling rod, reaming bit original place rotate carries out the clear hole of mud circulation;
5., clear hole completes rotation limit, back and draws reaming bit in until all regain, and reaming has been constructed.
9. hole-expanding pile construction technology according to claim 7, is characterized in that the hydraulic pressure reaming circulation drilling machine described in boring drill employing during described step (1) or Other Engineering stake machine.
10. hole-expanding pile construction technology according to claim 7, is characterized in that also specifically comprising the steps: before described step boring drill (1) centering in place
A, smooth location;
B, the setting-out of stake position;
C, bury casing underground.
CN201510155922.4A 2015-04-02 2015-04-02 A kind of hydraulic pressure reaming circulation drilling machine and its reaming pile constructing process CN104763328B (en)

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CN105040698A (en) * 2015-07-31 2015-11-11 周兆弟 Piling drive mechanism of comprehensive pile driver
CN105155519A (en) * 2015-09-29 2015-12-16 中国一冶集团有限公司 Rotary-excavating under-reamed bored pile constructing method
CN105239575A (en) * 2015-11-06 2016-01-13 李全民 Construction device and construction method of bored cast-in-place static pressure pipe pile with enlarged bottom
CN105507805A (en) * 2015-10-29 2016-04-20 简乃发 Novel water well drilling rig
CN105971495A (en) * 2016-06-22 2016-09-28 襄阳畅勘智能机械有限公司 Rotary excavating pile machine hole bottom hydraulic high-frequency in-the-hole rock breaking drill of rotating joint inner and outer drill rod rotation stopping type
CN106285531A (en) * 2016-08-10 2017-01-04 中建六局土木工程有限公司 The construction method that a kind of geological prospecting ultra-deep overlength drilling rod takes out
CN106930682A (en) * 2017-02-26 2017-07-07 北京中岩大地科技股份有限公司 A kind of direct circulation rotary digging enters rock technique
CN107354938A (en) * 2017-08-24 2017-11-17 川户嗣成 A kind of construction technology of mushroom head stake shape
CN108824424A (en) * 2018-06-05 2018-11-16 河海大学 Adaptive diameter changeable agitation pile-forming apparatus and pile making method
CN110700760A (en) * 2019-10-24 2020-01-17 福州大学 Multi-supporting-disc anchoring system hole expanding equipment and construction method
CN110984881A (en) * 2019-12-18 2020-04-10 上海中联重科桩工机械有限公司 Drilling rig equipment and method for hoisting and lowering reinforcement cage

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105040698A (en) * 2015-07-31 2015-11-11 周兆弟 Piling drive mechanism of comprehensive pile driver
CN105040698B (en) * 2015-07-31 2016-11-23 周兆弟 The piling drive mechanism of comprehensive piling machine
CN105155519A (en) * 2015-09-29 2015-12-16 中国一冶集团有限公司 Rotary-excavating under-reamed bored pile constructing method
CN105507805A (en) * 2015-10-29 2016-04-20 简乃发 Novel water well drilling rig
CN105507805B (en) * 2015-10-29 2018-02-09 简乃发 A kind of new water drilling rig
CN105239575A (en) * 2015-11-06 2016-01-13 李全民 Construction device and construction method of bored cast-in-place static pressure pipe pile with enlarged bottom
CN105971495A (en) * 2016-06-22 2016-09-28 襄阳畅勘智能机械有限公司 Rotary excavating pile machine hole bottom hydraulic high-frequency in-the-hole rock breaking drill of rotating joint inner and outer drill rod rotation stopping type
CN106285531A (en) * 2016-08-10 2017-01-04 中建六局土木工程有限公司 The construction method that a kind of geological prospecting ultra-deep overlength drilling rod takes out
CN106930682A (en) * 2017-02-26 2017-07-07 北京中岩大地科技股份有限公司 A kind of direct circulation rotary digging enters rock technique
CN107354938A (en) * 2017-08-24 2017-11-17 川户嗣成 A kind of construction technology of mushroom head stake shape
CN108824424A (en) * 2018-06-05 2018-11-16 河海大学 Adaptive diameter changeable agitation pile-forming apparatus and pile making method
CN110700760A (en) * 2019-10-24 2020-01-17 福州大学 Multi-supporting-disc anchoring system hole expanding equipment and construction method
CN110984881A (en) * 2019-12-18 2020-04-10 上海中联重科桩工机械有限公司 Drilling rig equipment and method for hoisting and lowering reinforcement cage

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Address after: Daqi Poplar Road, high tech Zone 315040 in Zhejiang Province, Ningbo City No. 666 and No. 6 22-1 City

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