CN207862925U - A kind of slip casting casing device - Google Patents

A kind of slip casting casing device Download PDF

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Publication number
CN207862925U
CN207862925U CN201820193281.0U CN201820193281U CN207862925U CN 207862925 U CN207862925 U CN 207862925U CN 201820193281 U CN201820193281 U CN 201820193281U CN 207862925 U CN207862925 U CN 207862925U
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China
Prior art keywords
slip casting
cylinder
casing
casting casing
construction
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CN201820193281.0U
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Chinese (zh)
Inventor
刘卫东
张永健
李金海
戚涛
付伟杰
姜春雷
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BUCG EIGHTH CONSTRUCTION DEVELOPMENT Co Ltd
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BUCG EIGHTH CONSTRUCTION DEVELOPMENT Co Ltd
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Abstract

The utility model proposes a kind of slip casting casing devices, the slip casting casing device includes cylinder, at least three Grouting Pipes are provided along its length on the upper outside wall of the cylinder, the circumference spaced set of at least three Grouting Pipes along cylinder, the lower sides of the cylinder are equipped with peephole, and the bottom of the cylinder is equipped with groove cutting shoe.The utility model ensure that drilling machine backfills the interim retaining wall of jackstone under casing follow-up to around, is easy pore-forming and hole quality is high, securely and reliably, construction efficiency is high, convenient and safe and cost is relatively low.

Description

A kind of slip casting casing device
Technical field
The utility model is related to the piling Technology field of architectural engineering, more particularly to a kind of slip casting casing device.
Background technology
In the dealing with foundation construction of architectural engineering, casing is a kind of tool device being commonly used, and effect is Play the role of retaining wall in foundation soil body and the pile body of its inside is protected in the construction process.And slip casting method is a kind of profit It will be injected into a kind of construction technology in foundation soil body with the slurries for reinforcing property with compression pump, the purpose is to make the slurry of injection Liquid is permeated and is spread in the soil body, reaches the purpose of strengthening stratum and impervious waterproof after certain time cures, to underground The reinforcing of structures, the effect of waterproof are obvious.
Currently, building trade is when being irrigated pile driving construction, frequently with drilling machine pore-forming, then casting concrete pile is applied Work method.But when it is that jackstone backfills stratum to encounter the drilling soil body, drilling machine creeps into not pore-forming and can not use mud off, often The problem of being susceptible to collapse hole.Although the method pore-forming according to overall height steel pile casting can preferably solve the problems, such as collapse hole, The problems such as it is higher that there are construction costs, and difficulty of construction is big.
Utility model content
The purpose of this utility model is to propose a kind of slip casting casing device, can guarantee that drilling machine hole quality is reliable, construction effect Rate is high, convenient and safe and cost is relatively low.
In order to achieve the above objectives, the utility model proposes a kind of slip casting casing device, including cylinder, the cylinder it is upper At least three Grouting Pipes are provided along its length on portion's lateral wall, at least three Grouting Pipes are equidistant along the circumference of cylinder The lower sides of setting, the cylinder are equipped with peephole, and the bottom of the cylinder is equipped with groove cutting shoe.
Further, in a kind of above-mentioned slip casting casing device, the slip casting casing device further includes an at least slip casting hose, One end of the slip casting hose is connected with the Grouting Pipe on cylinder, and the other end is communicated in slip casting machine.
Further, in a kind of above-mentioned slip casting casing device, the pressure resistance of the slip casting hose is not less than 6MPa, the slip casting Machine uses cement mortar slip casting machine, grouting pressure to be not more than 4MPa.
Further, in a kind of above-mentioned slip casting casing device, each Grouting Pipe upper inlet is concordant with cylinder, the slip casting The upper inlet of pipe is connected to slip casting machine by slip casting hose, and the lower part outlet of the Grouting Pipe is equipped with groove.
Further, in a kind of above-mentioned slip casting casing device, the length of the Grouting Pipe is the 1/3 of the length of cylinder.
Further, in a kind of above-mentioned slip casting casing device, the wall thickness of the cylinder is 10mm, and the length of the cylinder is 2m。
Further, in a kind of above-mentioned slip casting casing device, the peephole is located at cylinder body bottom 100mm.
Further, in a kind of above-mentioned slip casting casing device, a diameter of 20mm of peephole.
The pile foundation drilling construction method of a kind of slip casting casing device of the utility model and use the casing device ensure that brill Machine backfills the interim retaining wall of jackstone under casing follow-up to around, is easy pore-forming and hole quality is high, securely and reliably, construction efficiency High, convenient and safe and cost is relatively low.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of slip casting casing device of the utility model;
Fig. 2 is the enlarged diagram at A in Fig. 1;
Fig. 3 is a kind of sectional view of slip casting casing device of the utility model;
Fig. 4 is a kind of vertical view that slip casting casing device is in running order of the utility model;
Fig. 5 is a kind of sectional view that slip casting casing device is in running order of the utility model;
Fig. 6 is flow diagram of the utility model using the pile foundation drilling construction method of above-mentioned casing device.
Specific implementation mode
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
It please refers to Fig.1 to Fig.3, Fig. 1 is a kind of structural schematic diagram of slip casting casing device of the utility model.
The utility model provides a kind of slip casting casing device 100 comprising cylinder 1, on the upper outside wall of the cylinder 1 At least three Grouting Pipes 2 are provided along its length, at least three Grouting Pipes 2 are along the circumference spaced set of cylinder 1, institute The lower sides for stating cylinder 1 are equipped with peephole 3, and the bottom of the cylinder 1 is equipped with groove cutting shoe(It is not shown).
Wherein, the cylinder 1 is made of steel pipe, and is both ends open.In the present embodiment, the wall thickness of the cylinder 1 is The length of 10mm, the cylinder 1 are 2m, and the interior diameter of the cylinder 1 is design stake diameter(800mm-2000mm)+100mm.It is described 1 inside of cylinder carries out drilling construction for placing drilling machine, and the bottom of cylinder 1 setting groove cutting shoe makes in order to cut the soil body Cylinder 1 is obtained with drilling machine to sink.
The slip casting casing device further includes an at least slip casting hose 4, one end of the slip casting hose 4 on cylinder 1 Grouting Pipe 2 is connected, and the other end is communicated in slip casting machine(It is not shown).
The slip casting hose 4 is the pressure hose mating with slip casting machine, and the pressure resistance of the slip casting hose 4 is not less than 6MPa, The slip casting hose 4 and Grouting Pipe 2, which should use, to be reliably connected mode and is attached, and with slip casting casing it is continuous sink without Disconnecting is long, ensures that final hose length is long not less than stake.The slip casting machine uses cement mortar slip casting machine, grouting pressure to be not more than 4MPa。
Each Grouting Pipe 2 is set to the upper side wall of cylinder 1, i.e. the upper inlet of the Grouting Pipe 2 is concordant with cylinder 1, and institute The upper inlet for stating Grouting Pipe 2 is connected to slip casting machine by slip casting hose 4, for by Grouting Pipe 2 to 1 surrounding soil of cylinder into Row slip casting;The lower part outlet of the Grouting Pipe 2 is equipped with groove 21, and slurry flows out when for facilitating slip casting.
In the present embodiment, at least three Grouting Pipes 2 are three, respectively along the circumference spaced set of cylinder 1.Often One Grouting Pipe 2 uses wall thickness to be made of the steel pipe of 2mm, a diameter of 20mm of the Grouting Pipe 2, and the length of the Grouting Pipe 2 is The 1/3 of the length of cylinder 1(667mm).
The Grouting Pipe 2 is welded on the side wall of cylinder 1, is specifically welded using three fillet welding of bilateral, and throat depth is not less than 5mm。
The peephole 3 is located at 1 bottom 100mm of cylinder, and the peephole 3 is using drilling perforation steel casing pipe Wall, in order to observe the exudation of institute's injection slurry in casing, 3 a diameter of 20mm of the peephole, in work progress it should be noted that It avoids blocking.
Fig. 4 to fig. 6 is please referred to, Fig. 4 and Fig. 5 are respectively that a kind of slip casting casing device of the utility model is in running order Vertical view and sectional view.The utility model slip casting casing device 100 is mainly used in backfill jackstone stratum 200 at work, i.e., The fragmentary jackstone of surrounding is carried out reinforcing pore-forming by slip casting and forms interim retaining wall, to ensure hole quality.
Fig. 6 is flow diagram of the utility model using the pile foundation drilling construction method of above-mentioned casing device.It is described Method includes the following steps:
Step S1:It determines pre- fixed pile, slip casting casing device 100 is temporarily fixed in above-mentioned pre- fixed pile so that institute 100 center of slip casting casing device is stated to overlap with stake position center;
When specific implementation, construction site is cleared up first, is smooth, removes sundries, drilling machine position and row around stake position Road leveling compacting is walked, water power access is completed;It uses total station instrument coordinate method to carry out the center setting-out of stake again, is positioned with cross Method leads to the outer 50cm of stake as the central point for determining pre- fixed pile;Slip casting casing device 100 is embedded to the predetermined stake temporarily again In the soil body of position, it is ensured that 1 center of cylinder is overlapped with stake position center, and 100 buried depth of slip casting casing device is not less than 1.2m, should around backfill Clay, compaction in layers.Then the Grouting Pipe 2 on slip casting casing device 100 is connected to by slip casting hose 4 on slip casting machine;
Step S2:In pre- fixed pile, after drill hole of drilling machine to set depth, carried out into drilling by Grouting Pipe 2 Slip casing by pressure stops slip casting when observing that institute's injection slurry penetrates into cylinder 1 by peephole 3;
When specific implementation, rotary drilling rig carries out drilling construction in place, and slip casting casing device 100 is sink to suitable for reading be higher than with drilling The ground positions 20cm.The length of the cylinder 1 is 2m, reusable, and each drilling cycle depth of pore forming is 2m, the slip casting Casing device 100 sinks in jackstone backfill stratum with drilling machine in rotary drilling rig drilling process and forms interim retaining wall, casing top surface Reach backfill jackstone stratum(Be above the ground level 20cm for the first time)When, modulate rapid-hardening cement grout or cement mortar(Intensity is not more than M30, setting time are not more than 1 hour)Grouting pump is accessed, peripherally layer carries out pressure note by the Grouting Pipe on slip casting casing Slurry, pressure are not more than 4MPa.Stop slip casting when that can observe that institute's injection slurry penetrates into cylinder 1 by peephole 3, then It injects proper amount of clear water and cleans Grouting Pipe.
Step S3:According to the match ratio difference of slurries stand within 2 ~ 4 hours, until the slurries of injection are thrown with surrounding backfill Stone stratum 200 is formed by curing annular overall structure;
When specific implementation, according to Mortar mix proportion difference stand within 2 ~ 4 hours, to ensure that surrounding is backfilled jackstone by slurries It is formed by curing the annular rock-steady structure with some strength.
Step S4:Repeat the above steps S2 and S3, until drilling construction is incited somebody to action to after passing through backfill jackstone stratum 200 completely The slip casting casing device 100 for having noted slurry takes out from drilling.
When specific implementation, continue to be crept into slip casting casing device 100 using drilling machine is dug, while sinking to slip casting casing Subsequent cycle construction is carried out in device 100 to the jackstone backfill stratum of deeper, until drilling construction is thrown to backfill is passed through completely Behind stone stratum 200, the slip casting casing for having noted slurry is extracted after slurries and the solidification of surrounding jackstone.
Step S5:The construction of pile foundation pore-forming is completed after continuing to drill to stake bottom absolute altitude or corresponding supporting course using drilling machine.
When specific implementation, pore-forming examination can be carried out by continuing drilling to stake bottom absolute altitude or corresponding supporting course, after acceptance(check) Stake holes can be carried out placing the subsequent handling construction of steel reinforcement cage and casting concrete etc..
Compared with the prior art, the pile foundation pore-forming of a kind of slip casting casing device of the utility model and use the casing device is applied Work method has the advantages that:
1, the utility model is solved creeps into not pore-forming and nothing in mountain area area jackstone backfill stratum using rotary drilling rig Method uses the pore-forming problem under conditions of mud off when progress bored pile construction.
2, the utility model mainly reaches cost-effective by using the slip casting casing that can be recycled, and carries efficient Problem.
3, the utility model ensure that drilling machine casing follow-up under to around backfill jackstone interim retaining wall, be easy pore-forming and Hole quality is high, securely and reliably.
4, the slip casting casing of the utility model reinforces the fragmentary jackstone of surrounding by slip casting, is collectively formed annular steady Determine structure, ensure casing during deepening continuously soil layer, top stake holes not will produce collapse hole, and Forming Quality is high.
5, the slip casting casing length of the utility model is 2m, and difficulty of construction substantially reduces.
6, the advantages of slip casting casing construction method of the utility model combines panelling construction and casing construction method, in spy It is with obvious effects when constructing in fixed soil layer.
7, the construction method of the slip casting casing of the utility model can be with other construction method combination constructions, construction method conversion Adjustment too many Shi Buxu.
8, the construction method of the utility model is utilized since slip casting casing is repeatable, and top slip casting retaining wall is solid and reliable, institute It is deeper with theoretical drill depth, it is suitable for the construction of deeper stake holes.
To sum up, a kind of slip casting casing device of the utility model and the pile foundation drilling construction method guarantee using the casing device Drilling machine backfills the interim retaining wall of jackstone under casing follow-up to around, is easy pore-forming and hole quality is high, securely and reliably, construction Efficient, convenient and safe and cost is relatively low.
Here the description and application of the utility model are illustrative, are not wishing to the scope of the utility model being limited in It states in embodiment.The deformation and change of embodiments disclosed herein are possible, for the ordinary skill people of those this fields The replacement of embodiment and equivalent various parts are well known for member.It should be appreciated by the person skilled in the art that not taking off In the case of spirit or essential characteristics from the utility model, the utility model can in other forms, structure, arrangement, ratio, And it is realized with other components, material and component.It, can be to this in the case where not departing from the scope of the utility model and spirit In disclosed embodiment carry out other deformations and change.

Claims (8)

1. a kind of slip casting casing device, which is characterized in that including cylinder, on the upper outside wall of the cylinder along its length Equipped at least three Grouting Pipes, at least three Grouting Pipes are along the circumference spaced set of cylinder, the lower side of the cylinder Wall is equipped with peephole, and the bottom of the cylinder is equipped with groove cutting shoe.
2. slip casting casing device according to claim 1, which is characterized in that the slip casting casing device further includes at least one One end of slip casting hose, the slip casting hose is connected with the Grouting Pipe on cylinder, and the other end is communicated in slip casting machine.
3. slip casting casing device according to claim 2, which is characterized in that the pressure resistance of the slip casting hose is not less than 6MPa, the slip casting machine use cement mortar slip casting machine, grouting pressure to be not more than 4MPa.
4. slip casting casing device according to claim 3, which is characterized in that each Grouting Pipe upper inlet is flat with cylinder Together, the upper inlet of the Grouting Pipe is connected to slip casting machine by slip casting hose, and the lower part outlet of the Grouting Pipe is equipped with groove.
5. slip casting casing device according to claim 4, which is characterized in that the length of the Grouting Pipe is the length of cylinder 1/3.
6. slip casting casing device according to claim 5, which is characterized in that the wall thickness of the cylinder is 10mm, the cylinder The length of body is 2m.
7. slip casting casing device according to claim 1, which is characterized in that the peephole is located at apart from cylinder body bottom At 100mm.
8. slip casting casing device according to claim 7, which is characterized in that a diameter of 20mm of peephole.
CN201820193281.0U 2018-02-05 2018-02-05 A kind of slip casting casing device Active CN207862925U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820193281.0U CN207862925U (en) 2018-02-05 2018-02-05 A kind of slip casting casing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820193281.0U CN207862925U (en) 2018-02-05 2018-02-05 A kind of slip casting casing device

Publications (1)

Publication Number Publication Date
CN207862925U true CN207862925U (en) 2018-09-14

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109371975A (en) * 2018-10-25 2019-02-22 广西建工集团基础建设有限公司 A kind of CFG stake implantation construction method suitable for compound soft or hard geology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109371975A (en) * 2018-10-25 2019-02-22 广西建工集团基础建设有限公司 A kind of CFG stake implantation construction method suitable for compound soft or hard geology

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