CN105350544B - For water-stop curtain and its construction method containing block stone region - Google Patents
For water-stop curtain and its construction method containing block stone region Download PDFInfo
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- CN105350544B CN105350544B CN201510621731.2A CN201510621731A CN105350544B CN 105350544 B CN105350544 B CN 105350544B CN 201510621731 A CN201510621731 A CN 201510621731A CN 105350544 B CN105350544 B CN 105350544B
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- water
- block stone
- containing block
- region
- rotary churning
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of for water-stop curtain and its construction method containing block stone region, the method is comprised the following steps：1) in the region containing block stone on the outside of foundation ditch, the predeterminated position of water-stop curtain excavate discharge guide groove for discharging mud；2) in a predeterminated position construction at least row rotary churning pile of the water-stop curtain, the adjacent rotary churning pile is engaged.The water-stop curtain constituted using rotary churning pile can solve the problems, such as be constructed mixing pile in the soil layer containing block stone.The water-stop curtain that mixing pile is constituted is compared, and the water-stop curtain that rotary churning pile is constituted has more preferable water-stagnating effect, and rotary churning pile easily facilitates construction than mixing pile.
Description
Technical field
It is espespecially a kind of for water-stop curtain and its construction party containing block stone region the present invention relates to building engineering field
Method.
Background technology
In level of ground water regional for example close sea-filling region high, alluvial delta area, there is the geology bar such as mud or drift sand
During the complicated regional deep pit excavation of part, in order to prevent Groundwater infiltration foundation ditch inside, it is necessary to be set on the outside of foundation ditch
Put water-stop curtain.Water-stop curtain is adjacent in pile water stopping curtain is stirred generally using stirring pile water stopping curtain in the prior art
Mixing pile is engaged, is surrounded on the outside of foundation ditch.But when the soil layer on the outside of foundation ditch contains block stone, Old building basis, nothing
Method is constructed mixing pile in soil layer, so as to hinder to stir the construction of pile water stopping curtain.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention is provided to water-stop curtain and its construction party containing block stone region
Method, it is of the invention to solve existing stirring pile water stopping curtain for water-stop curtain and its construction method containing block stone region
Cannot be in the problem of the soil layer construction containing block stone.
Technical scheme provides a kind of for the waterproof curtain construction method containing block stone region, and it includes following
Step：
1) in the region containing block stone on the outside of foundation ditch, the predeterminated position of water-stop curtain excavate discharge for discharging mud
Guide groove；
2) in a predeterminated position construction at least row rotary churning pile of the water-stop curtain, the adjacent rotary churning pile is stung mutually
Close.
It is of the invention for waterproof curtain construction method further improvement is that the rotary churning pile containing block stone region
Work progress comprise the following steps：
1) by protection casing pipe sleeve on the outside of the drilling rod of rig, and using rig to soil layer internal bore；
2) the protection sleeve pipe is transferred in the lump with the drilling rod in boring procedure, until the bottom of the protection sleeve pipe
Containing the block stone layer of block stone inside through soil layer, stop the decentralization protection sleeve pipe；
3) when the drill hole of drilling machine to designated depth, stop drilling and the drilling rod of the rig is taken out from hole；
4) drilling rod of high-pressure rotary jetting apparatus is transferred to the bottom in the hole along the protection sleeve pipe；
5) rotary jet grouting is carried out to the hole from bottom to top using high-pressure rotary jetting apparatus, and is moving up the high-pressure rotary-spray
The protection sleeve pipe is moved up during the drilling rod of machine.
It is of the invention for containing the waterproof curtain construction method of block stone region further improvement is that：The protective case
It is pvc pipe to manage.
It is of the invention for containing the waterproof curtain construction method of block stone region further improvement is that：Outside the foundation ditch
The region that block stone is contained in side is provided with two row rotary churning piles.
Technical scheme also provides a kind of for the water-stop curtain containing block stone region, is arranged at foundation ditch outside and contains
There is the region of block stone, it includes an at least row rotary churning pile, inside any one row rotary churning pile, the adjacent rotary churning pile is mutually stung
Close.
It is of the invention for containing the water-stop curtain of block stone region further improvement is that：The length of the rotary churning pile is
10m~13m.
Having the beneficial effect that for the water-stop curtain containing block stone region and its construction method of the invention：Using rotary churning pile
The water-stop curtain of composition can solve the problems, such as be constructed mixing pile in the soil layer containing block stone.Stirring pile water stopping curtain phase
Than the water-stop curtain that rotary churning pile is constituted has more preferable water-stagnating effect, and rotary churning pile easily facilitates construction than mixing pile.
Brief description of the drawings
Fig. 1 is the top view for the water-stop curtain containing block stone region of the invention；
Fig. 2 is the partial enlarged drawing at the A in Fig. 1；
The sectional view of soil layer when Fig. 3 during jet grouting pile construction to punch；
Fig. 4 is the sectional view of the soil layer after the completion of jet grouting pile construction.
Specific embodiment
Embodiments of the present invention are illustrated below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages of the invention and effect easily.The present invention can also be by specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
It should be noted that structure, ratio, size depicted in this specification institute accompanying drawings etc., is only used to coordinate
Content disclosed in bright book, so that those skilled in the art understands and reads, is not limited to enforceable limit of the invention
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
Under influence effect that can be generated of the invention and the purpose to be reached, all should still fall obtained in disclosed technology contents
In the range of covering.Meanwhile, in this specification it is cited as " on ", D score, "left", "right", " centre " and " one " etc.
Term, is merely convenient to understanding for narration, and is not used to limit enforceable scope of the invention, the change of its relativeness or tune
It is whole, under without essence change technology contents, when being also considered as enforceable category of the invention.
Introduce below in conjunction with the accompanying drawings of the invention for the water-stop curtain containing block stone region.
As depicted in figs. 1 and 2, the outside that foundation ditch 10 is arranged at for the water-stop curtain containing block stone region of the invention.
The edge of foundation ditch 10 is the foundation pit supporting construction 13 that bored concrete pile 11 and rotary churning pile 12 are spaced.In foundation pit supporting construction 13
In, adjacent bored concrete pile 11 and rotary churning pile 12 is mutually twisted.Water-stop curtain of the invention 14 is arranged at foundation pit supporting construction 13
Region 15 of the outside containing block stone, water-stop curtain 14 includes an at least row rotary churning pile 16.In any one row rotary churning pile 16, churning
Stake 16 is arranged along the direction of margin of foundation pit, and adjacent rotary churning pile 16 is mutually twisted.Contain the area of block stone in the present embodiment
Domain 15 is provided with two row rotary churning piles 16, and two row rotary churning piles 16 are arranged and be parallel to each other along the direction at the edge of foundation ditch 10.Rotary churning pile 16
Length be 10m~13m.
The region of block stone is not contained in the outside of foundation ditch 10, water-stop curtain can be stopped using rotary churning pile water stopping curtain or mixing pile
Water curtain, in the present embodiment, the water-stop curtain for not containing block stone region is similarly the water-stop curtain of rotary churning pile composition.
The water-stop curtain 14 constituted using rotary churning pile 16 can solve be constructed mixing pile in the soil layer containing block stone
Problem.The water-stop curtain that mixing pile is constituted is compared, and the water-stop curtain 14 that rotary churning pile 16 is constituted has more preferable water-stagnating effect, and rotation
Spray stake easily facilitates construction than mixing pile.
Introduce below in conjunction with the accompanying drawings of the invention for the waterproof curtain construction method containing block stone region：
As shown in Figures 1 to 4, it is of the invention for the waterproof curtain construction method containing block stone region mainly include it is following
Step：
1) in region 15 of the outside of foundation ditch 10 containing block stone, the predeterminated position of water-stop curtain excavated for discharging mud
Discharge guide groove.Discharge guide groove is used to be emitted on the mud produced in the work progress of rotary churning pile 16.
2) it is adjacent in any one row rotary churning pile 16 in a predeterminated position construction at least row rotary churning pile 16 of water-stop curtain 14
Rotary churning pile 16 it is engaged.Two row rotary churning piles 16 of constructing are needed in the region 15 containing block stone in the present embodiment.Two row rotations
Spray stake 16 can strengthen the water-stagnating effect of water-stop curtain 14.
Following steps are specifically included in the construction rotary churning pile 16 of region 15 containing block stone：
1) as shown in figure 3, sleeve pipe 17 will be protected to be enclosed within the drilling rod outside of rig, and using rig to soil layer internal bore,
Protection sleeve pipe 17 is pvc pipe in the present embodiment.
2) protection sleeve pipe 17 is transferred in the lump with the drilling rod in boring procedure, until the bottom of protection sleeve pipe 17 passes through
Block stone layer 18 containing block stone inside soil layer, stops decentralization protection sleeve pipe 17.
3) when drill hole of drilling machine to designated depth, stop drilling and the drilling rod of rig is taken out from hole 19.Protection sleeve pipe 17
Can prevent 18 blocks of stones of block stone layer of the side wall of hole 19 from caving in plugging hole 19 during the drilling rod of rig takes out.
4) drilling rod of high-pressure rotary jetting apparatus is transferred to the bottom in hole 19 along protection sleeve pipe 17.
5) as shown in Figure 3 and Figure 4, using high-pressure rotary jetting apparatus, device to hole 19 carries out rotary jet grouting from bottom to top, and is moving upwards
Protection sleeve pipe 17 is moved up during the drilling rod of dynamic high-pressure rotary jetting apparatus.Sleeve pipe 17 is protected to be extracted out from hole 19 after the completion of the slip casting of hole 19.
Rotary churning pile 16 is formed after cement slurry sets in hole 19.During slip casting, the bottom of the drilling rod of high-pressure rotary jetting apparatus is simultaneously to hole
19 side wall injection water under high pressure and low-pressure air, the punching soil body is coaxially sprayed using high pressure water jet and air-flow, is formed larger
Hole.The drilling rod of high-pressure rotary jetting apparatus fills space, cement mortar shape after solidification in hole 19 to cement grout is injected in hole 19 simultaneously
Into rotary churning pile 16.
The water-stop curtain 14 constituted using rotary churning pile 16 can solve be constructed mixing pile in the soil layer containing block stone
Problem.The water-stop curtain that mixing pile is constituted is compared, and the water-stop curtain 14 that rotary churning pile 16 is constituted has more preferable water-stagnating effect, and rotation
Spray stake easily facilitates construction than mixing pile.
The above is only presently preferred embodiments of the present invention, and any formal limitation is not done to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, not departing from the range of technical solution of the present invention, when making a little change using the technology contents of the disclosure above or repair
The Equivalent embodiments for equivalent variations are adornd, as long as being the content without departing from technical solution of the present invention, according to technology reality of the invention
Any simple modification, equivalent variations and modification that confrontation above example is made, still fall within the scope of technical solution of the present invention
It is interior.
Claims (5)
1. it is a kind of for the waterproof curtain construction method containing block stone region, it is characterised in that to comprise the following steps：
1) in the region containing block stone on the outside of foundation ditch, the discharge excavated for discharging mud of the predeterminated position of water-stop curtain leads
Groove；
2) in a predeterminated position construction at least row rotary churning pile of the water-stop curtain, the adjacent rotary churning pile is engaged；Its
In, the work progress of the rotary churning pile further includes following steps：
Using pvc pipe as protection sleeve pipe, it is used to be enclosed within the drilling rod outside of rig, and using rig to soil layer internal bore；
The protection sleeve pipe is transferred in the lump with the drilling rod in boring procedure, until the bottom of the protection sleeve pipe passes through soil
The internal block stone layer containing block stone of layer, stops the decentralization protection sleeve pipe；
When the drill hole of drilling machine to designated depth, stop drilling and the drilling rod of the rig is taken out from hole；
The drilling rod of high-pressure rotary jetting apparatus is transferred to the bottom in the hole along the protection sleeve pipe；
Rotary jet grouting is carried out to the hole from bottom to top using high-pressure rotary jetting apparatus, and is moving up the brill of the high-pressure rotary jetting apparatus
The protection sleeve pipe is moved up during bar；Wherein, during slip casting, the bottom of the drilling rod of the high-pressure rotary jetting apparatus is simultaneously to hole
Side wall injection water under high pressure and low-pressure air.
2. the waterproof curtain construction method containing block stone region is used for as claimed in claim 1, it is characterised in that：The foundation ditch
Region of the outside containing block stone is provided with two row rotary churning piles.
3. it is a kind of by construction method as claimed in claim 1 or 2 formed for the water-stop curtain containing block stone region, if
It is placed in region of the foundation ditch outside containing block stone, it is characterised in that including an at least row rotary churning pile, inside any one row rotary churning pile,
The adjacent rotary churning pile is mutually twisted.
4. the water-stop curtain containing block stone region is used for as claimed in claim 3, it is characterised in that：The length of the rotary churning pile
It is 10m~13m.
5. the water-stop curtain containing block stone region is used for as claimed in claim 3, it is characterised in that：Contain in the foundation ditch outside
The region of block stone is provided with two row rotary churning piles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621731.2A CN105350544B (en) | 2015-09-25 | 2015-09-25 | For water-stop curtain and its construction method containing block stone region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510621731.2A CN105350544B (en) | 2015-09-25 | 2015-09-25 | For water-stop curtain and its construction method containing block stone region |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105350544A CN105350544A (en) | 2016-02-24 |
| CN105350544B true CN105350544B (en) | 2017-06-13 |
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ID=55326596
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510621731.2A Active CN105350544B (en) | 2015-09-25 | 2015-09-25 | For water-stop curtain and its construction method containing block stone region |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087994A (en) * | 2016-08-25 | 2016-11-09 | 中国水利水电第四工程局有限公司 | A kind of high pressure jet grouting pore-forming dado structure and construction method thereof |
| CN107975056A (en) * | 2017-12-18 | 2018-05-01 | 中国二十冶集团有限公司 | The excessive processing method for causing water-stop curtain stake to be difficult to pile of Bored Pile Filling Coefficient |
| CN113006109B (en) * | 2021-03-02 | 2022-09-09 | 北京住总第一开发建设有限公司 | Construction method of waterproof curtain of foundation pit of highly permeable stratum area |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286985A (en) * | 2011-07-11 | 2011-12-21 | 中交一航局第四工程有限公司 | Method for constructing dual high-pressure jet grouting pile waterproof curtain |
| CN102286981A (en) * | 2011-07-15 | 2011-12-21 | 深圳市鸿荣轩建设工程有限公司 | Waterproof curtain and construction method thereof |
| CN103850261A (en) * | 2012-12-06 | 2014-06-11 | 中国二十冶集团有限公司 | In-rock deep foundation pit rock-socketed water-stop curtain construction method |
| CN104499495A (en) * | 2014-12-23 | 2015-04-08 | 中国建筑西南勘察设计研究院有限公司 | Waterproof curtain wall for foundation pit |
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| CN105350544A (en) | 2016-02-24 |
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