CN207244612U - A kind of mushroom head pilework - Google Patents
A kind of mushroom head pilework Download PDFInfo
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- CN207244612U CN207244612U CN201721066736.4U CN201721066736U CN207244612U CN 207244612 U CN207244612 U CN 207244612U CN 201721066736 U CN201721066736 U CN 201721066736U CN 207244612 U CN207244612 U CN 207244612U
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- mushroom head
- stake
- stake holes
- mushroom
- pilework
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Abstract
The utility model discloses mushroom head pilework, the mushroom head stake includes the vertical stake holes excavated with tub scraper bowl, the upper ends of the stake holes have can plug carrying sleeve, being perfused with the stake holes prevents the bentonite slurry of collapse hole, the cavity of the mushroom capitiform excavated with mushroom head drilling tool is equipped with the bottom of the stake holes, inserted with steel reinforcement cage in the stake holes, concrete is filled by Grouting Pipe in the stake holes.The mushroom head pilework and for process the frock of mushroom head stake have the characteristics that simple in structure, anchoring is stable and firm, easy to construction operation, construction efficiency is high, construction quality is good.
Description
Technical field
It the utility model is related to a bottom and use hydraulic pressure digging principle, form mushroom head stake shape at stake bottom, reduce construction cost,
Automatic Control center, can strictly implement pile foundation construction whole process accurate Electronic Data Processing control.Shaping mushroom head stake shape can reach surely
Gu antidetonation, resistance to plucking, environmental protection, energy saving, cost is low, the latest model mushroom head pilework such as efficient.
Background technology
As China's infrastructure construction develops rapidly, project scale is big and complicated geology, and difficulty is high, and owner is to pile foundation
Project cost, construction efficiency, construction quality requirement is constantly rigorous, and country puts more effort quality, duration management and control, thus to pile foundation
Quality, environmental protection is energy saving, and the lifting of the various aspects construction technology such as efficiency is extremely urgent.
In the field such as underground process and slope project, anchor pole is most widely used rock-reinforcing measure.The whole world is every
Year will consume millions of rock-bolts.As underground engineering and deeps mines buried depth are increasing, many water conservancies and traffic
Journey and the nonmetallic underground mine of can all encounter high-ground stress problem, are enclosed at this time by the underground engineering of excavation Influence for Unloading
Rock will bear very high stress.Under high stress, many more serious address disasters occur often, as rock mass is weaker
Often soft rock large deformation occurs.Landslide etc., and rock burst and bump etc. then easily occur when rock mass is firmly crisp.And prevent high-ground stress
The effective means of geological disaster is still timely and effectively bolt anchorage measure.
Resin anchor immediately can apply country rock enough pretightning forces, can not only prevent the initial deformation of country rock, also
The initial slippage of anchor pole itself can be eliminated, and certain pretightning force can be applied to country rock, makes the cross section under tension tension of country rock
Reduce.The anchor force of resin anchor is larger, and gelling curing rate is fast, and higher first anchor ability can be obtained within a few houres, from
It is and rapid.Effectively volume produces anchorage effect.Due to the unrivaled superiority of resin anchor, it is set gradually to instead of mine
Conventional anchor-frictional metal anchor pole that supporting uses.
And there are some shortcomings, such as operating difficulties, equipment failure rate height, low construction efficiency, anchor for current resin anchor
Gu effect is undesirable etc..
Chinese patent CN1632233 A, title " bidirectional stirring pile into pile operation method ", a：Flatten place；b：It is two-way
Mixing pile machine positions：Crane suspends mixer in midair to finger fixed pile and centering；c：Stirring is sunk：Start bidirectional stirring pile machine, make
Bidirectional stirring pile driver drilling rod is along leading truck to incision soil, and stock pump is sent in unlatching, to soil body water-spray type slurry, on bidirectional stirring pile driver drilling rod
Forward and reverse rotating blade while Stirring soil cement respectively；d：Bidirectional stirring pile driver drilling rod persistently sinks and mixes cement
Soil, until projected depth；e：While stirring lifting, the blade of forward and reverse rotation continues to stir water on bidirectional stirring pile driver drilling rod
Soil；f：Lifted, be stirred to earth's surface or designed elevation above 50cm, complete the construction of two-way stirring concrete drill hole stake.It is not
Foot part：First, the molding stake of background technology is still single-column cement earth pile, the single-column cement earth pile in soft soil foundation is due to stake
Small, the stake surrounding soil property of basal plane product it is dilute it is soft, be vertically not enough to support single-column cement earth pile by support force and keep vertically, thus easily cause
The molding single-column cement earth pile run-off the straight of institute and scrap；Two be due to that cement mortar and native stirring are same in single-column cement earth pile
To stirring, the mixing between cement mortar and soil can not be made to be unable to reach uniformly, thus be bound to cause the molding single-column soil cement of institute
Stake body intensity is low.
Cast-in-situ bored pile refers in engineering site by means such as machine drilling, steel pipe soil compaction or manpower excavations in foundation soil
Middle formation stake holes, and steel reinforcement cage, concrete perfusion and the stake made are placed in it, different according to forming hole method, bored concrete pile is again
Several classes such as driven cast-in-place pile, cast-in-situ bored pile and digging hole filling pile can be divided into.Cast-in-situ bored pile is depending on classifying by pile making method
A kind of pile-type of justice.Usual construction procedure is as follows：Smooth location → slurrying → embedded casing → laying workbench → peace
Dress drilling machine and positions → drilling and forming hole → borehole cleaning and check hole quality → decentralization steel reinforcement cage → pouring underwater concrete → extraction
Casing → check on the quality.
For different geology locations, different construction requirement and concrete operation method, such as utility model patent are had：One
Kind is suitable for tilting solid rock location drilled pile construction method (application number：201510248001.2), this method is using interval
The method of construction, joint construction is bored by rotary drilling rig and geology, bores first construction stress release aperture using geology, then pass through churning driven
The method of machine construction drill stake, plays the role of rock stress release, while the stress relief hole for completion of constructing is to churning driven
Guiding role is played in machine construction, inclined hole phenomenon occurs when avoiding rotary drilling rig construction.
Rotary drilling rig is because with speed of application is fast, hole quality is good, environmental pollution is small, flexible and convenient operation, security performance
The advantages such as high and strong applicability, instead of traditional impact and convolution drilling machine pore-forming equipment, it has also become bored pile construction
Main pore-forming equipment.Rotary drilling rig adapts to the soil-geological condition of China's most area, and use scope is wide, but needs according to not
Same geological conditions, replaces corresponding drill bit, to reach high speed, high-quality pore-forming requirement.
But when such as running into calcite cementation rock stratum geologic feature, with above-mentioned construction method, it is impossible to ensure hole quality, and
Construction time is longer.Calcite cementation rock stratum is generally present in carbonate rock area, its cementing rock hardness ratio argillaceous agglutination
Rock is big, but lower than the hardness of silicious gangue rock stratum.For different depth of stratum, using unified construction method, it is even more impossible to
Ensure high-speed high-quality pore-forming.
Utility model content
The purpose of this utility model is that overcome defect existing in the prior art, there is provided a kind of simple in structure, anchoring is surely
Determine firmly, easy to construction operation, the mushroom head pilework that construction efficiency is high, construction quality is good.
To achieve the above object, the technical solution of the utility model is to design a kind of mushroom head pilework, the mushroom head
Stake include with tub scraper bowl excavate vertical stake holes, the upper ends of the stake holes have can plug carrying sleeve, described
Being perfused with stake holes prevents the bentonite slurry of collapse hole, and the mushroom capitiform excavated with mushroom head drilling tool is equipped with the bottom of the stake holes
Cavity, inserted with steel reinforcement cage in the stake holes, concrete is filled by Grouting Pipe in the stake holes.
In order to ensure the construction quality of mushroom head stake shape, the forming efficiency of raising mushroom head stake shape, preferable technical solution
In addition, the mushroom head drilling tool and tub scraper bowl are interchangeable.
In order to ensure the construction quality of mushroom head stake shape, the forming efficiency of raising mushroom head stake shape, preferable technical solution
In addition, sign is used for final stroke mark on drilling rod more than the brill disk of the mushroom head drilling tool, and determine shaping eventually
Point.
In order to ensure the construction quality of mushroom head stake shape, the forming efficiency of raising mushroom head stake shape, preferable technical solution
In addition, the mushroom head drilling tool is connected with water pump.
In order to ensure the construction quality of mushroom head stake shape, the forming efficiency of raising mushroom head stake shape, preferable technical solution
In addition, the diameter of the mushroom head stake is selected and is divided into：
A, maximum stake holes diameter uses 600-3000mm, and mushroom head diameter selects 1000-6000mm, and stake depth is arranged on
70m or so；
B, medium stake holes footpath uses 600-2000mm, mushroom head diameter select 3000mm or within, stake holes depth is arranged on
60m or so.
C, small pile bore dia select 600-2000mm, mushroom head diameter select 2800mm or within, stake holes depth set
Within 50m, maximum mushroom head stake height be according to moulding diameter used by equipment determine that moulding angle maximum is no more than
40 degree.
The advantages of the utility model and beneficial effect are：The frock of the mushroom head pilework has simple in structure, anchoring
It is stable and firm, easy to construction operation, construction efficiency is high, construction quality is good the features such as.The construction of mushroom head stake shape both E S T
(Expand Super Technology) technique is that stake bottom rotary grinding Tu Bi, makes a bottom by oil pressure digging special mushroom head
Area increases, and forms the newest pile foundation construction engineering method of mushroom head stake shape.Using special rotary drilling rig original soil pulping, Drilling by inverse circulation
To bottom hole, a borehole cleaning, drilling rod and straight type drill bit are proposed, replace the special mushroom head of oil pressure digging, face is carried out with bottom hole under drilling rod
Product increase moulding, an increase borehole cleaning, concrete use commerical ready-mixed concrete, and steel reinforcement cage is using field fabrication.Using drill hole of drilling machine,
Lower cage, the construction method for pouring cage under concrete and crane.
E S T techniques as a kind of brand-new stake technique, its with reinforcing flexible foundation effect it is good, apply that settlement after construction is small, anti-the earth
Shake, lateral deformation is small, extraction-resistant behavior is good, more piece moulding increase bearing capacity, save cost, it is environmentally protective the advantages that, soft soil foundation,
Lithosphere can consolidation process, suitable extensive use is obtained in foundation engineering.
Brief description of the drawings
Fig. 1 is the utility model mushroom head pilework structure substep shaping schematic diagram.
1st, tub scraper bowl；2nd, stake holes；3rd, carrying sleeve；4th, bentonite slurry；5th, mushroom head drilling tool；6th, the sky of mushroom capitiform
Chamber；7th, steel reinforcement cage；8th, Grouting Pipe；9th, concrete.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and the protection model of the utility model cannot be limited with this
Enclose.
As shown in Figure 1, the utility model is a kind of mushroom head pilework, the mushroom head stake includes being dug with tub scraper bowl 1
Pick vertical stake holes 2, the upper ends of the stake holes 2 have can plug carrying sleeve 3, be perfused with the stake holes 2 anti-
The only bentonite slurry 4 of collapse hole, the cavity 6 of the mushroom capitiform excavated with mushroom head drilling tool 5 is equipped with the bottom of the stake holes 2,
Inserted with steel reinforcement cage 7 in the stake holes 2, concrete 9 is filled by Grouting Pipe 8 in the stake holes 2.
The construction technology of mushroom head stake shape, the construction technology comprise the technical steps that：
The first step：Stake positioning；
Second step：The hole more slightly larger than stake footpath is bored, for placing carrying sleeve；
3rd step：It is pressed into carrying sleeve；
4th step：Bentonite slurry is irrigated into the hole being drilled to prevents collapse hole, starts simultaneously at and bores stake path portion hole；
5th step：The hole of stake path portion is bored to desired depth；
6th step：After the completion of the hole of stake path portion, tub scraper bowl is changed into mushroom head drilling tool；
7th step：With mushroom head drilling tool by the bottom moulding of drilling；
8th step：Check the depth of drilling；
9th step：In the hole that steel reinforcement cage insertion is drilled to；
Tenth step：It is inserted into Grouting Pipe；
11st step：The dregs in bottom hole is trickled down with air pump cleaning；
12nd step：With Grouting Pipe concrete perfusion；
13rd step：Withdraw Grouting Pipe；
14th step：Carrying sleeve is pulled up, completes the construction of mushroom head stake shape.
In order to ensure the construction quality of mushroom head stake shape, the forming efficiency of raising mushroom head stake shape, the utility model are preferred
Embodiment in addition, the mushroom head drilling tool 5 and tub scraper bowl 1 are interchangeable.
In order to ensure the construction quality of mushroom head stake shape, the forming efficiency of raising mushroom head stake shape, the utility model are preferred
Embodiment in addition, sign is used for final stroke mark on drilling rod more than the brill disk of the mushroom head drilling tool 5, and
Determine shaping terminal.
In order to ensure the construction quality of mushroom head stake shape, the forming efficiency of raising mushroom head stake shape, the utility model are preferred
Embodiment in addition, the mushroom head drilling tool 2 is connected with water pump and (is not regarded in figure).
In order to ensure the construction quality of mushroom head stake shape, the forming efficiency of raising mushroom head stake shape, the utility model are preferred
Embodiment in addition, the diameter of the mushroom head stake is selected and is divided into：
A, maximum stake holes diameter uses 600-3000mm, and mushroom head diameter selects 1000-6000mm, and stake depth is arranged on
70m or so；
B, medium stake holes footpath uses 600-2000mm, mushroom head diameter select 3000mm or within, stake holes depth is arranged on
60m or so.
C, small pile bore dia select 600-2000mm, mushroom head diameter select 2800mm or within, stake holes depth set
Within 50m, maximum mushroom head stake height be according to moulding diameter used by equipment determine that moulding angle maximum is no more than
40 degree.
The construction technology of mushroom head stake is：
The blade construction of mushroom-head shape is used in the construction technology of mushroom head stake shape, circularity is high, is not easy to stay residue, digs
The big sloping portions of power are cut when filling bottom moulding, the sand of digging can effectively be put into mushroom scraper bowl.Driver's cabin, which is equipped with, to be touched
Control system, whole-process automatic controllable construction system show a depth, mushroom head hole diameter and excavation amount, cement consumption etc. a system
Row Electronic Data Processing, while can be by voice, voice-controlled manner commands mushroom head.From the simulation of the full-automatic controllable device of E S T constructions
Picture, can the filling soil amount of continuous metering mushroom head, filling rate, be avoided excessive filling.Moulding work can safely be carried out
Industry.Reaching nominal shape, during size, the end of job is notified by display screen.After mushroom stake moulding, construction results can be used
Printer, printing preserve or transfer data to computer, mobile phone.
The construction technology of the utility model mushroom head stake shape, mushroom pile driving construction process are divided into following steps：
Drilling machine is in place → and pore-forming → fabrication of reinforcing cage → steel reinforcement cage placement → receipts → conduit → concrete stirring → pours concrete under water
Make test specimen.
E S T techniques are introduced:
A, check whether mushroom head is shunk flexible with opening.By the hydraulic pressure of mushroom head crane drilling machine, always oily device lifts,
Then slowly put down again, the moulding wing of mushroom head will shrink and open therewith, so be repeated several times, make drill bit flexible movements.
B, according to the required moulding diameter of engineering, its stroke is determined.
C, after mushroom head tripping in bottom hole, sign or other methods carry out final stroke on the drilling rod for boring more than disk
Mark, to determine shaping terminal.
D, by mushroom head lift-off bottom hole, it is at suspended state.
E, start mushroom head and water pump, can start to the moulding of stake bottom after drilling machine and pump working are normal.
F, during mushroom stake moulding oil control mushroom head moulding speed is sent using hydraulic tube.For safety, during moulding more
It is slow better.Under normal circumstances, the rope speed of putting of hoist engine should ensure that kelly is moved down with the speed of 10mm/min-1, if bored
Machine vibrations are too big, can further slow down moulding speed.
G, after the completion of mushroom stake moulding, revolution can be continued in the original location until borehole cleaning finishes, you can propose mushroom head rapidly.
H, after mushroom stake moulding, to ensure that the carrying of stake bottom is reliable, usable aperture detector is detected, and determines stake
After bottom mushroom stake diameter reaches design requirement, lift mushroom head, then carry out next procedure.
Mushroom stake holes detection means and method:
The detection means used in construction is based on equipment self-inspection, the means supplemented by the detection of vertical drawing instrument, can reach
Predetermined testing goal.
(1) 600/1320 type of equipment self-inspection analyzer is vertical, moulding detector equipment, has a whole set of accurate ground inspection
Examining system, on ground by central means system, directly displays the contraction of mushroom head, moulding overall process, so as to reach equipment certainly
Inspection.
(2) ES techniques：Mainly mushroom head shaping situation is detected using the displacement of drilling rod.By the mushroom of every kind of different size
Head, passes through the relation for calculating every kind of moulding and drilling rod displacement scale and specific data, in construction forming, site supervision personnel
It can be carried out an acceptance inspection according to this data to mushroom head moulding.
(3) mushroom stake bottom diameter detection, in addition to using above method, in order to further confirm whether mushroom stake diameter reaches
To design requirement, it is detected using aperture detector.It has the advantages that convenient and simple for operation, directly perceived, the time is short.Specifically
Operating method is：With the aperture detector mobile jib, the long corresponding length of stake is connected to, and is connected according to aperture diameter and measures diameter poles,
A bottom is stretched into, verticality and process are surveyed and drawn by sensor.
Mushroom stake diameter is selected：
(1) 600-3000mm is used in the stake of severely-weathered layer or more soil layer mushroom, existing machinery ability maximum pile body diameter,
1000-6000mm can be selected in mushroom head diameter, and stake depth is contemplated that in 70m or so.
(2) if weathered layer can use 600~2000mm as supporting course base expanding and base expanding, stake footpath in selecting, mushroom head diameter can
Select：3000mm or within, stake depth is contemplated that in 60m or so.
(3) if selecting micro- weathered layer, as supporting course moulding, 600~2000mm, mushroom head diameter can be selected in stake diameter
Can be selected 2800mm or within, stake depth is contemplated that within 50m.Maximum mushroom stake height is used according to moulding diameter
Equipment determine that moulding angle is maximum is no more than 40 degree.
The detection of mushroom stake can use domestic pile foundation quality analyzer, can be drawn using bounce technique detection and qualitatively tied
By to complete the identification of mushroom stake index.
As shown in Figure 1, it is E S T construction technology flow diagrams, for mushroom stake, in identical stake shaft diameter
Under, single pile axial direction allowable bearing improves more than 40% than isometrical stake；And in the case of same bearer power, saved than isometrical pile section
Concrete amount more than 35%, and stake footpath is bigger, and saving is more.Therefore, mushroom pile constructing process will obtain in engineering
Extensive use.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (5)
- A kind of 1. mushroom head pilework, it is characterised in that the mushroom head stake includes the vertical stake holes excavated with tub scraper bowl, The upper ends of the stake holes have can plug carrying sleeve, the bentonite slurry for preventing collapse hole is perfused with the stake holes, The bottom of the stake holes is equipped with the cavity of the mushroom capitiform excavated with mushroom head drilling tool, inserted with steel reinforcement cage in the stake holes, Concrete is filled by Grouting Pipe in the stake holes.
- 2. mushroom head pilework as claimed in claim 1, it is characterised in that the mushroom head drilling tool can be mutual with tub scraper bowl Change.
- 3. mushroom head pilework as claimed in claim 1, it is characterised in that in the brill for boring more than disk of the mushroom head drilling tool Sign is used for final stroke mark on bar, and determines shaping terminal.
- 4. mushroom head pilework as claimed in claim 3, it is characterised in that the mushroom head drilling tool is connected with water pump.
- 5. mushroom head pilework as claimed in claim 1, it is characterised in that the diameter of the mushroom head stake, which is selected, to be divided into：A, maximum stake holes diameter uses 600-3000mm, and mushroom head diameter selects 1000-6000mm, and stake depth is arranged on a 70m left sides It is right；B, medium stake holes footpath uses 600-2000mm, mushroom head diameter select 3000mm or within, stake holes depth is arranged on a 60m left sides It is right；C, small pile bore dia select 600-2000mm, mushroom head diameter select 2800mm or within, stake holes depth is arranged on 50m Within, maximum mushroom head stake height be according to moulding diameter used by equipment determine that moulding angle is maximum to be no more than 40 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721066736.4U CN207244612U (en) | 2017-08-24 | 2017-08-24 | A kind of mushroom head pilework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721066736.4U CN207244612U (en) | 2017-08-24 | 2017-08-24 | A kind of mushroom head pilework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207244612U true CN207244612U (en) | 2018-04-17 |
Family
ID=61882563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721066736.4U Expired - Fee Related CN207244612U (en) | 2017-08-24 | 2017-08-24 | A kind of mushroom head pilework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207244612U (en) |
-
2017
- 2017-08-24 CN CN201721066736.4U patent/CN207244612U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20210824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |