CN207331673U - A kind of mini-valve tube horizontal grouting constructing device - Google Patents
A kind of mini-valve tube horizontal grouting constructing device Download PDFInfo
- Publication number
- CN207331673U CN207331673U CN201720932259.9U CN201720932259U CN207331673U CN 207331673 U CN207331673 U CN 207331673U CN 201720932259 U CN201720932259 U CN 201720932259U CN 207331673 U CN207331673 U CN 207331673U
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- Prior art keywords
- mini
- valve tube
- hole
- slip casting
- anchor cable
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model discloses a kind of mini-valve tube horizontal grouting constructing device, including anchor cable, waist rail, anchor cable is connected into square grid shape support system by waist rail, injected hole is set in the square grid shape support system, angle between anchor cable, injected hole and horizontal plane is 15 °, mini-valve tube is placed in the injection sheath body bed of material in the injected hole, the center in hole；Slip casting core pipe is provided with mini-valve tube；Set on mini-valve tube at interval of certain distance and penetrate slurry hole, rubber case parcel penetrates slurry hole；Rubber stoping flowing pulp plug is set in slip casting core pipe, and the slurry hole of penetrating is separated different slip casting sections in mini-valve tube by adjacent rubber stoping flowing pulp plug respectively.The characteristics of mini-valve tube horizontal grouting constructing device of the utility model changes vertical drilling slip casting, overcome slip casting soil body top can not vertical drilling the defects of, effectively to the barrier lower part soil body carry out grouting and reinforcing improvement, it is ensured that the safety of foundation pit.
Description
Technical field
It the utility model is related to a kind of mini-valve tube horizontal grouting constructing device for being used for soil improvement in sand and gravel stratum.
Background technology
With construction industry flourish, China build in room it is increasing with infrastructure project scale, ultra-deep foundation pit, tunnel,
In subway engineering, the application that soft layer reinforces improving technology is more and more common.Conventional vertical bored grouting is constructed, and is being constructed
Take urban road in journey, destroy urban construction, under construction of structures can not operation, grouting consolidation effect control difficulty is larger, condition
And construction method is improper, not only claim for eot, financial cost can be substantially increased, and more seriously influence the stability of soil layer, directly
Connect and increase engineering safety risk.
Therefore, it is necessary to one kind is developed for soil improvement constructing device in sand and gravel stratum to solve problem above.
Utility model content
The purpose of this utility model is to provide a kind of mini-valve tube horizontal grouting constructing device, to improve in sand and gravel stratum
The soil body.
This mini-valve tube horizontal grouting constructing device provided by the utility model, for soil improvement in sand and gravel stratum,
Including anchor cable, waist rail, anchor cable is connected into square grid shape support system by waist rail, and the angle between anchor cable and horizontal plane is 15 °,
Injected hole is set in the square grid shape support system, the angle between injected hole and horizontal plane is similarly 15 °, the injected hole
Interior injection sleeve shell material forms the sheath body bed of material, and mini-valve tube is placed in the center in hole, for conveying grouting serous fluid；Set in mini-valve tube
There is slip casting core pipe；Set on mini-valve tube at interval of certain distance and penetrate slurry hole, rubber case parcel penetrates slurry hole, and rubber sleeve is being pressed during slip casting
Washed open under power effect by slurries, slurries is entered stratum, and can ensure to be layered stratum needed for injection on request, when stopping slip casting
When, rubber sleeve rebounds again wraps mini-valve tube, prevents extratubal fluid from entering in pipe, plays the role of reverse stop valve；In slip casting core pipe
Rubber stoping flowing pulp plug is set, and the slurry hole of penetrating is separated different slip casting sections in mini-valve tube by adjacent rubber stoping flowing pulp plug respectively.
Mini-valve tube is made of PVC plastic pipe, and it is 33cm often to save length, and one group is bored in end6mm's penetrates slurry hole, often
The longitudinal length 5cm in group hole, for convenience of connecting, internal thread is made in one end, and the other end is outer silk, outer filament length 3cm.
The technical principle of the utility model：By highly permeable weak sandy gravel stratum, grid is divided on supporting facade, is examined
Consider the pressure and single-pipe grouting scope of slip casting, to determine the size of grid, using the horizontal oblique drilling hole of anchoring drilling machine, hole depth reaches
To after design requirement, go out the circulating mud that drills with sleeve shell material grout replacement, mini-valve tube is put into sleeve shell material slurries, is then passed through
Mini-valve tube carries out slip casting.Under grouting pressure effect, cement grout overcomes various resistances and penetrates into natural soil layer hole, and with
The lasting injection of slurries, reinforced material reach larger range of scatter, so as to play reinforcing improving effect to the soil body.
Compared with prior art, the mini-valve tube horizontal grouting constructing device of the utility model changes vertical drilling slip casting
Feature, using horizontal drilling, overcome slip casting soil body top can not vertical drilling the defects of, effectively to the barrier lower part soil body
Carry out grouting and reinforcing improvement, improve the layer soil body C values (cohesive strength),It is worth (internal friction angle), increases the elasticity of the soil body
Modulus, it is ensured that the safety of foundation pit, specific advantage include：
1) restricted from surrounding enviroment, using horizontally or obliquely bored grouting, be not take up road, narrow field space still may be used
Carry out operation；
2) slip casting has controllability, and there is upper and lower two stop grouting plugs to be formed and stop slurry system, slurries can be limited to slip casting area
Slip casting is carried out in the range of the either segment in domain, achievees the purpose that segmenting slip casting.Only slurry system can be moved freely, it can be achieved that noting repeatedly
Slurry；
3) utilization rate of equipment and installations is high, and drilling and slip casting operation can separate, and improve the utilization rate of drilling device；
4) hole quality is high, and drilling uses casing drilling and pipe-following drilling technique, effectively controls hole wall landslide, ensure that
Hole quality；
5) depthkeeping, quantitative, indexing, segmentation, interval, repetition slip casting can be carried out, has concentrated fracture grouting method, press injecting method
The advantages of with slip casting method is penetrated into；
6) it is applied widely, the preferable soil layer of permeability is not only suitable for, and suitable for the poor soil body of permeability.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is described in further detail, wherein：
Fig. 1 is the utility model square grid shape support system schematic diagram；
Fig. 2 is the utility model injected hole inclination angle schematic diagram；
Fig. 3 the utility model mini-valve tube structure diagrams；
Fig. 4 is the utility model embodiment sleeve valve barrel grouting schematic diagram；
Embodiment
The concrete engineering embodiment relied on reference to the utility model is described in further detail.
By taking Changsha commercial center constructs as an example, which is super deep big foundation pit, and 9.4 ten thousand ㎡ of project occupation of land, is excavated
7.5 Wan ㎡ of area, it is 42.75 meters to excavate most depth, and report is surveyed in base area, at southeast corner, absolute altitude -13.2m~-30.2m
It is highly permeable sandy gravel stratum in depth bounds.Between support pile 64#~115#, length is 114 meters, high in grouting and reinforcing region
Spend for 17 meters, depth is 40 meters, altogether grouting and reinforcing sandy gravel stratum 77520m3。
This mini-valve tube horizontal grouting constructing device provided by the utility model, the sand gravel for Changsha commercial center
Anchor cable is connected into square grid shape support system (1), anchor cable and horizontal plane by soil improvement in stratum, including anchor cable, waist rail, waist rail
Between angle be 15 °, injected hole position (11) are set in the square grid shape support system, during construction using jumbolter into
Hole is to projected depth, aperture 110mm, 40 meters or so of drilling depth, and dip angle of hole is 15 degree, the injected hole and horizontal plane of gained it
Between angle be similarly 15 °, injection sleeve shell material forms the sheath body bed of material (2) in the injected hole, and sleeve valve is placed in the center in hole
Manage (3), for conveying grouting serous fluid, mini-valve tube is made of PVC plastic pipe, and it is 33cm often to save length, for convenience of connecting, one end
Make internal thread, the other end is outer silk, outer filament length 3cm；Slip casting core pipe (4) is provided with mini-valve tube；Often save every on mini-valve tube end
Slurry hole (5) is penetrated in setting spaced apart, and rubber case (6) parcel penetrates slurry hole, and rubber sleeve is under pressure by slurries during slip casting
Wash open, slurries is entered stratum, and can ensure to be layered stratum needed for injection, when stopping slip casting, rubber sleeve and bullet on request
Return and wrap mini-valve tube, prevent extratubal fluid from entering in pipe, play the role of reverse stop valve；Rubber stoping flowing pulp plug is set in slip casting core pipe
(7), the slurry hole of penetrating is separated different slip casting sections in mini-valve tube by adjacent rubber stoping flowing pulp plug respectively.
In Changsha commercial center excavation of foundation pit and support engineering, by the contrast of a variety of constructing devices, using this reality
With new mini-valve tube horizontal grouting constructing device, soil improvement is carried out to deep sand gravel layer, it is ensured that pattern foundation pit supporting structure it is absolute
Safety, this constructing device have reliable operability, and construction safety, can ensure quality, accelerate the duration, and with preferable warp
Ji benefit, and the stability that sleeve valve barrel grouting is reinforced, are effectively controlled the security risk caused by quality.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (2)
1. a kind of mini-valve tube horizontal grouting constructing device, it is characterised in that including anchor cable, waist rail, the waist rail connects anchor cable
Into square grid shape support system, the angle between the anchor cable and horizontal plane is 15 °, is set in the square grid shape support system
Injected hole is put, the angle between injected hole and horizontal plane is similarly 15 °, and injection sleeve shell material forms sleeve shell material in the injected hole
Layer, the center of the injected hole sets mini-valve tube, slip casting core pipe is provided with the mini-valve tube along its length；The mini-valve tube
On be arranged at intervals with penetrate slurry hole, rubber case parcel described in penetrate slurry hole；Rubber stoping flowing pulp plug is set in slip casting core pipe, and adjacent rubber is only starched
The slurry hole of penetrating is separated different slip casting sections in mini-valve tube by plug respectively.
2. mini-valve tube horizontal grouting constructing device according to claim 1, it is characterised in that the mini-valve tube uses more piece
PVC plastic pipe is made, and it is 33cm often to save length, is set in the end of every section and penetrates slurry hole, penetrates the longitudinal length in slurry hole
5cm, often saves plastic tube one end and makes internal thread, and the other end is outer silk, the outer filament length 3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720932259.9U CN207331673U (en) | 2017-07-28 | 2017-07-28 | A kind of mini-valve tube horizontal grouting constructing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720932259.9U CN207331673U (en) | 2017-07-28 | 2017-07-28 | A kind of mini-valve tube horizontal grouting constructing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207331673U true CN207331673U (en) | 2018-05-08 |
Family
ID=62376980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720932259.9U Expired - Fee Related CN207331673U (en) | 2017-07-28 | 2017-07-28 | A kind of mini-valve tube horizontal grouting constructing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207331673U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708768A (en) * | 2018-06-04 | 2018-10-26 | 徐州中国矿大岩土工程新技术发展有限公司 | Slip casting tube head, grouting device and its construction method |
| CN110700789A (en) * | 2019-11-12 | 2020-01-17 | 宋宝玉 | Oil field packer |
| CN111778978A (en) * | 2020-05-25 | 2020-10-16 | 北京中煤矿山工程有限公司 | Water-rich soft soil foundation pit bottom water sealing and reinforced ground directional horizontal hole grouting process |
| CN112112654A (en) * | 2020-07-30 | 2020-12-22 | 中建五局土木工程有限公司 | Isolation plate structure in upper soft and lower hard stratum and construction method thereof |
-
2017
- 2017-07-28 CN CN201720932259.9U patent/CN207331673U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708768A (en) * | 2018-06-04 | 2018-10-26 | 徐州中国矿大岩土工程新技术发展有限公司 | Slip casting tube head, grouting device and its construction method |
| CN110700789A (en) * | 2019-11-12 | 2020-01-17 | 宋宝玉 | Oil field packer |
| CN110700789B (en) * | 2019-11-12 | 2021-10-15 | 宋宝玉 | Oil field packer |
| CN111778978A (en) * | 2020-05-25 | 2020-10-16 | 北京中煤矿山工程有限公司 | Water-rich soft soil foundation pit bottom water sealing and reinforced ground directional horizontal hole grouting process |
| CN112112654A (en) * | 2020-07-30 | 2020-12-22 | 中建五局土木工程有限公司 | Isolation plate structure in upper soft and lower hard stratum and construction method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20190728 |