CN109930615A - A kind of civil engineering groundwork water-stopping method - Google Patents
A kind of civil engineering groundwork water-stopping method Download PDFInfo
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- CN109930615A CN109930615A CN201711356696.1A CN201711356696A CN109930615A CN 109930615 A CN109930615 A CN 109930615A CN 201711356696 A CN201711356696 A CN 201711356696A CN 109930615 A CN109930615 A CN 109930615A
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Abstract
The invention discloses one kind to be used for civil engineering dilatation joint waterproof structure, belongs to the water-stop technology field of civil engineering, and technical solution includes the following steps: that (A) according to geological condition, utilizes boring machine pore-forming in the earth formation；(B) it is successively packed into sealing filler material into hole, be driven into sealing filler material with hammer or is pressed into stratum, sealing filler material is squeezed into the gap on stratum or the stratum of displacement infiltration, makes to form a water-seal pile around hole；(C) operation for repeating step (A), (B) as needed overlaps mutually overlap joint or water-seal pile and other water proof boundaries between adjacent water-seal pile, forms continuous closed waterstop, achievees the purpose that prevent groundwater seepage.The advantages of method of the invention has construction is simple, sealing reliable, low cost, is suitable for various stratum, and sealing construction is carried out especially in gravel layer, metalling, boulder bed has significant effect.
Description
Technical field
The present invention relates to a kind of civil engineering groundwork water-stopping methods, more specifically, it relates to be mainly used in building work
The foundation pit side-wall sealing construction of journey or one kind of underground water blocking construction are used for civil engineering dilatation joint waterproof structure.
Background technique
The foundation pit side-wall water-stopping method of current civil engineering mainly have Mixing Pile Method In Deep, high-pressure injection method, slip casting method,
Underground diaphragm wall method, steel sheet pile method etc..
Mixing Pile Method In Deep is to enter cement slurry or cement powder and soil body mixed pile-forming by side stirring, marginal not, by stake and
Stake overlaps and achievees the purpose that sealing.This method construction is simple, application is very wide, and cost is higher.But this method is only applicable to weak soil
And the sandy soils of loose or slightly close shape, be not suitable for closely knit sandy soils, be not particularly suitable in gravel layer, metalling, boulder bed.When
When subsurface flow flow velocity is larger, pile quality is poor, and water-stagnating effect is bad.
High-pressure injection method is by high-pressure water jet cutting soil, cement slurry and soil body mixed pile-forming or high pressure water mud
By soil body injection cutting, mixed pile-forming, sealing is achieved the purpose that by stake and stake overlap joint.It is fixed to be divided into according to nozzle oscillation situation
Spray, whirl spraying and 3 kinds of swaying-jet-grouting are divided into three kinds of single tube injection, two-tube injection and three pipe inspections according to the quantity of injection fluid.This method
It constructs more complex, application is wider, but cost is very high.This method is only applicable to weak soil and sandy soils, is not suitable for gravel layer, rubble
Layer, boulder bed, there are be also not suitable for when biggish stone in banket.Equally, when subsurface flow flow velocity is larger, pile quality
Difference, water-stagnating effect are bad.
Slip casting method is to make the closely knit consolidation of soil layer by the method for injecting cement slurry toward stratum, to achieve the purpose that sealing.
This method construction is simple, application is very wide, and cost is not high.But this method is only applicable to sandy soils, is not suitable for gravel layer, rubble
Layer, boulder bed.The method disadvantage is to be unable to ensure the flow direction of slurries, and the place that may cause the filling is not filled, and is not required to
The place of filling is filled with, thus, also you can't get guarantees for water-stagnating effect, in addition, when subsurface flow flow velocity is larger, sealing
It is of poor quality.
Underground diaphragm wall method is by special machinery in underground construction together continuous closed reinforced concrete wall, thus
Achieve the effect that sealing.This method water-stagnating effect is good, is suitable for various stratum, but cost is very high, general construction unit can not connect
By only certain important engineering combination supportings use.
Steel sheet pile method is that steel sheet pile is squeezed into stratum by special machinery to form continuous closed steel sheet-pile wall together, from
And achieve the effect that sealing.This method water-stagnating effect is general, is not suitable for closely knit sandy soils and gravel layer, is not particularly suitable in broken
Rock layers, boulder bed.Same cost is very high.
Summary of the invention
The purpose of the present invention is to provide it is a kind of it is novel be used for civil engineering dilatation joint waterproof structure, using of the invention
Water-stopping method construction is simple, sealing are reliable, low cost.It is particularly suitable for the sealing construction of gravel layer, metalling, boulder bed,
And not by subsurface flow flow rate effect.
Object of the present invention is to what is be achieved through the following technical solutions: one kind being used for civil engineering dilatation joint waterproof structure,
Include the following steps: that (A) according to geological condition, utilizes boring machine pore-forming in the earth formation；(B) successively sealing is packed into hole to fill out
Sealing filler material is successively driven into hammer or is pressed into stratum by charge, and sealing filler material is squeezed into the gap on stratum or displacement is seeped
The stratum of water makes to form a water-seal pile around hole；(C) operation for repeating step (A), (B) as needed makes adjacent stop
Mutually overlap joint or water-seal pile and other water proof boundaries overlaps between water stake, forms continuous closed waterstop, reaches prevention underground water
The purpose of infiltration.
Above-mentioned one kind is used for civil engineering dilatation joint waterproof structure, and when step (B) operates, a guiding is first placed in hole
Sealing filler material is put in guiding steel pipe by steel pipe, then the sealing filler material in guiding steel pipe is driven into or is pressed into stratum with hammer
In, and guiding steel pipe is gradually extracted ground upwards.Guiding steel pipe plays the effects of retaining wall and guiding.
Above-mentioned one kind is used for civil engineering dilatation joint waterproof structure, and the lower end close end side wall of the guiding steel pipe is set
Set discharge hole.
Above-mentioned one kind is used for civil engineering dilatation joint waterproof structure, and the pore diameter range of pore-forming described in step (A) is
100mm~600mm, depending on depth of pore forming is required according to sealing, such as according to stratum distribution situation, stratum water penetration, watery, benefit
Effect reached to source, sealing etc. determines.
Above-mentioned one kind is used for civil engineering dilatation joint waterproof structure, repetition step (A) described in step (C), (B)
When operation, the center spacing distance between adjacent two hole is 200mm~1000mm, so that mutually overlap joint or water-seal pile between water-seal pile
Subject to the overlap joint of other water proof boundaries.
Above-mentioned one kind is used for civil engineering dilatation joint waterproof structure, and pore-forming described in step (A) is to pierce formula pore-forming
Or driving into type pore-forming.
Above-mentioned one kind is used for civil engineering dilatation joint waterproof structure, and sealing filler material described in step (B) is cement
Mortar or concrete or cement clay mixture or cement slurry or one of cohesive soil or building glue or their combination.
Above-mentioned one kind is used for civil engineering dilatation joint waterproof structure, is hit sealing filler material with hammer described in step (B)
Enter or be pressed into stratum, hammer can be hung with wirerope, hammer directly impacts sealing filler material or static(al) compressing in guiding steel pipe
Sealing filler material；It can also be transferred force to the upper supporting disk of strike or static(al) compressing steel pole above aperture is hammered into shape by steel pole
Sealing filler material is driven into guiding steel pipe or is pressed into stratum by lower supporting disc, lower supporting disc.
Detailed description of the invention
Fig. 1 is construction method schematic diagram of the invention
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides one kind for civil engineering dilatation joint waterproof structure, construction process are as follows: (A) benefit
With boring machine pore-forming in the earth formation；(B) it is successively packed into sealing filler material into hole, successively sealing filler material is driven into ground with hammer
In layer, water-seal pile is formed；(C) operation for repeating step (A), (B) as needed, make between water-seal pile mutually overlap joint or water-seal pile with
Other water proof boundary overlap joints, form continuous closed waterstop, achieve the purpose that prevent groundwater seepage.It is now detailed to each process
It is described as follows:
(A) according to geological condition and sealing requirement, using boring machine pore-forming in the earth formation, aperture be 100mm~
600mm, for convenient for operation, generally 100mm~300mm is preferred.Depending on depth of pore forming is required according to sealing, such as according to stratum point
Cloth situation, stratum water penetration, watery, supply source, excavation of foundation pit depth, required water-stagnating effect etc. determine, with deep-layer stirring
The depth requirements of stake method, high-pressure injection method, slip casting method etc. are identical.
(B) it is successively packed into sealing filler material into hole, be driven into sealing filler material with hammer or is pressed into stratum, sealing filling
Material is squeezed into the gap on stratum or the stratum of displacement infiltration, makes to form water-seal pile around hole, the size of water-seal pile can basis
Theoretical calculation and test determine.The length of water-seal pile generally passes through weeping formation depending on stratum, is to meet sealing requirement
It is quasi-.
(C) operation for repeating step (A), (B) as needed, make between adjacent water-seal pile overlap joint two-by-two or water-seal pile with it is other
Water proof boundary (such as pile foundation) overlap joint forms continuous closed waterstop, achievees the purpose that prevent groundwater seepage.
As shown in fig.1, to be used for civil engineering dilatation joint waterproof structure using of the invention, when construction, is more steady on stratum
It is fixed, in the case where being not easy collapsing, construct in the steps below, (A) first bores the hole 1 of φ 150mm in stratum 5 using drilling machine,
The depth in hole 1 should generally pass through pervious bed 1m~2m depending on basement cutting depth and pervious bed buried depth.(B) sealing is filled out
Charge 2 is put into 1 bottom of hole, and using the cement mortar of M20, sealing filler material 2 is filled into certain sealing filler material 2 in hole 1
After height, sealing filler material 2 is driven into or is pressed into stratum 5 with hammer 3, so that sealing filler material 2 is pressed to surrounding stratum 5, formation stops
Water stake 6；Then hammer 3 is lifted, sealing filler material 2 is added into hole 1 again, sealing filler material 2 is driven into or is pressed with hammer 3 again
Enter in stratum 5, successively descends sealing filler material 2, hammer 3 to hit or press, recycles progress, repetitive cycling carries out, and the height of water-seal pile 6 is gradually
It increases, until more than the top surface of permeable stratum forming a continuous water-seal pile.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. one kind is used for civil engineering dilatation joint waterproof structure, it is characterised in that include the following steps: (A) according to geological condition,
Utilize boring machine pore-forming in the earth formation；(B) it is successively packed into sealing filler material into hole, is successively driven into sealing filler material with hammer
Or in indentation stratum, sealing filler material is squeezed into the gap on stratum or the stratum of displacement infiltration, makes to be formed one around hole only
Water stake；(C) operation for repeating step (A), (B) as needed, make between adjacent water-seal pile mutually overlap joint or water-seal pile with it is other
Water proof boundary overlap joint forms continuous closed waterstop.
2. according to claim 1 a kind of for civil engineering dilatation joint waterproof structure, which is characterized in that step (B) behaviour
It is first that a guiding steel pipe is placed in hole when making, sealing filler material is put in guiding steel pipe, then with hammer stopping in guiding steel pipe
Water filler material is driven into or is pressed into stratum, and guiding steel pipe is gradually extracted ground upwards.
3. according to claim 2 a kind of for civil engineering dilatation joint waterproof structure, which is characterized in that the guiding
Discharge hole is arranged in the lower end close end side wall of steel pipe.
4. according to claim 1 a kind of for civil engineering dilatation joint waterproof structure, which is characterized in that in step (A)
The pore diameter range of the pore-forming is 100mm~600mm, depending on depth of pore forming is required according to sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356696.1A CN109930615A (en) | 2017-12-16 | 2017-12-16 | A kind of civil engineering groundwork water-stopping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711356696.1A CN109930615A (en) | 2017-12-16 | 2017-12-16 | A kind of civil engineering groundwork water-stopping method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109930615A true CN109930615A (en) | 2019-06-25 |
Family
ID=66981297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711356696.1A Pending CN109930615A (en) | 2017-12-16 | 2017-12-16 | A kind of civil engineering groundwork water-stopping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109930615A (en) |
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2017
- 2017-12-16 CN CN201711356696.1A patent/CN109930615A/en active Pending
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Application publication date: 20190625 |