CN208778010U - A kind of advance reinforcement structure of push pipe inlet and outlet cave - Google Patents
A kind of advance reinforcement structure of push pipe inlet and outlet cave Download PDFInfo
- Publication number
- CN208778010U CN208778010U CN201821231431.9U CN201821231431U CN208778010U CN 208778010 U CN208778010 U CN 208778010U CN 201821231431 U CN201821231431 U CN 201821231431U CN 208778010 U CN208778010 U CN 208778010U
- Authority
- CN
- China
- Prior art keywords
- pipe
- push pipe
- surrounding
- hole
- push
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000002787 reinforcement Effects 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 18
- 239000004568 cement Substances 0.000 abstract description 9
- 239000002002 slurry Substances 0.000 abstract description 9
- 230000008676 import Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004080 punching Methods 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000007569 slipcasting Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
A kind of advance reinforcement structure of push pipe inlet and outlet cave, the Grouting Pipe for reinforcing that guide pipe is provided in the push pipe inlet and outlet cave surrounding earthwork and is squeezed into from the guide pipe.The utility model in the pre-buried guide pipe of push pipe inlet and outlet cave, avoid it is subsequent when needing to squeeze into Grouting Pipe will the concrete to wall abolish punching, simplify process, save the time.Cement slurry is injected into the hole surrounding earthwork by Grouting Pipe, cement slurry reacts with surrounding soil, keep soil body solidification hardened, at hole, surrounding forms one of firm annular curtain, effectively play the role of to push pipe hole surrounding soil stabilization, prevent hole soil body when push pipe export & import from collapsing, situations such as push pipe head upwarps, " kowtowing ".Meanwhile the soil-cement body after reinforcing, have good water-stagnating effect, can effectively reduce hole surrounding underground water and enter in hole.
Description
Technical field
The utility model relates to jacking construction, in particular to a kind of advance reinforcement structure of push pipe inlet and outlet cave.
Background technique
With the fast development of China's urbanization, ducts engineering is also quickly grown.Pipeline is in passing through building, public affairs
When the special areas such as road, railway, traditional open cut pipe laying mode is restricted, and Construction Techniqus of Slurry Pipe Jacking is increasingly
Maturation is simultaneously widely applied.In mud hydraulic balance jacking construction, when push pipe export & import, is influenced by ground water pressure, is easily occurred
The problems such as underground water is poured in from hole surrounding, push pipe nose drop.Also occur that hole top cubic metre of earth collapses when serious, mud gushes
Enter the cave in accident of working pit.
Traditional reinforcing method is to carry out grouting and reinforcing after the broken hole of hole, then to surrounding soil.Break portal
Afterwards, due to the reason of underground water, the soil body at portal can usually occurs and collapse, mud pours in the bad accident such as active well.Meanwhile it is broken
Soil stabilization is carried out behind hole again, can just play reinforcing after having the function that some strength after needing cement slurry to inject the soil body.
Utility model content
The utility model based on the above situation, has developed a kind of advance reinforcement structure of push pipe inlet and outlet cave, can be to hole
Mouthful surrounding soil body carries out advance reinforcement, prevent using when the soil body at portal occur collapse, mud pours in the bad accident such as active well.
In order to achieve the above objectives, specific technical solution used by the utility model is said is as follows:
A kind of advance reinforcement structure of push pipe inlet and outlet cave, be provided in the push pipe inlet and outlet cave surrounding earthwork guide pipe with
And the Grouting Pipe for reinforcing squeezed into from the guide pipe.
Preferably, the guide pipe is distributed along the push pipe inlet and outlet cave surrounding in circular ring shape.
Preferably, the guide pipe equidistant interval.
Preferably, clay is filled in the guide pipe, nozzle is sealed using M30 mortar.
Preferably, the slip casting length of tube is 4m-5m.
The beneficial effects of the utility model are as follows:
The utility model in the pre-buried guide pipe of push pipe inlet and outlet cave, avoid it is subsequent will be to wall when needing to squeeze into Grouting Pipe
Concrete abolish punching, simplify process, save the time.Cement slurry is injected into the hole surrounding earthwork by Grouting Pipe,
Cement slurry reacts with surrounding soil, keeps soil body solidification hardened, and at hole, surrounding forms one of firm annular curtain, effectively
Play the role of prevent hole soil body when push pipe export & import from collapsing push pipe hole surrounding soil stabilization, push pipe head upwarps,
Situations such as " kowtowing ".Meanwhile the soil-cement body after reinforcing, have good water-stagnating effect, with can effectively reducing hole surrounding
It is lauched and enters in hole.
Detailed description of the invention
Fig. 1 is the agent structure schematic diagram that the utility model squeezes into the earthwork
Fig. 2 is the side structure schematic diagram that the utility model squeezes into the earthwork
Fig. 3 is the utility model operating environment figure
In figure: 1 guide pipe, 2 Grouting Pipes, 3 push pipe inlet and outlet caves, 4 active well walls, 5 advance reinforcement slip casting areas
Specific embodiment
Below with reference to specific the drawings and the specific embodiments, the utility model is described in further detail.
Such as Fig. 1,2,3, when carrying out jacking construction operation, in the binding of upper pipe working well structure reinforcing bars in push pipe export & import
The mouth pre-buried guide pipe 1 of 3 surroundings；The length of the guide pipe 1 is equal to the thickness of active well wall 4, and the active well wall 4 is pre-
Bury after the guide pipe 1 that casting concrete is formed by active well inner wall in the upper pipe working well.Preferably, the guiding
Pipe 1 is distributed in a ring in 3 surrounding of push pipe inlet and outlet cave.Circumferential direction is equidistant between the guide pipe 1, it is preferable that described
Circumferential distance interval is 30cm.After the guide pipe 1 is pre-buried, the guide pipe 1 is clogged to closely knit, nozzle use with clay
Mortar sealing；Since the active well of push pipe is caisson sinking construction mostly, if guide pipe 1 is not filled with sealing when sinking, soil
Underground water inside body can flow into foundation pit from guide pipe 1, and rich groundwater when can be with silt particle on the outside of wall locating for guide pipe 1
It is flushed to inside active well together, first is that bringing difficulty to construction, causes analysis empty second is that silt particle outside active well has been taken away, make
It is settled at surrounding soil.
After the guide pipe 1 is pre-buried, upper pipe working well Concrete In Structures are poured, upper pipe working wells is waited to sink in place, it is complete
After active well back cover, is cleared up in the guide pipe 1 at this time and seal mortar, squeeze into note into pipeline jacking direction along guide pipe 1
Starch pipe 2, it is preferable that 2 length of Grouting Pipe is 4m-5m.Push-bench head length used in practice of construction is generally 4m
Left and right length, the length of the Grouting Pipe 2 selects more slightly longer than the head length according to the actual situation.
Then, slip casting is carried out to the Grouting Pipe 2 squeezed into, it is preferable that slip casting uses cement slurry, grout coordinate ratio be 1:0.5~
1:1.Grouting pressure is less than or equal to 1.5Mpa, and slip casting dilation angle is controlled in 400mm or so.Preferably, slip casting is using interval
Grouting mode successively carries out from low to high.After all 2 slip castings of Grouting Pipe, around push pipe inlet and outlet cave 3 formed one circle by
Advance reinforcement slip casting area 5 in soil cement annular curtain, that is, Fig. 1, plays the role of sealing and soil mass consolidation.After slip casting, by institute
It states the residual slurry in the outside of Grouting Pipe 2 to clean out, cuts off exposed parts, and with mortar 1 nozzle of guide pipe block closely knit.Work as note
Slurry region can carry out subsequent job after reaching some strength.
Above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment pair
The utility model is described in detail, those skilled in the art should understand that, it can be to the technology of the utility model
Scheme is modified or replaced equivalently, and without departing from the objective and range of technical solutions of the utility model, should all be covered
In the scope of the claims of the utility model.
Claims (5)
1. a kind of advance reinforcement structure of push pipe inlet and outlet cave, it is characterised in that: in the upper pipe working well inlet and outlet cave surrounding earthwork
It is inside provided with guide pipe, squeezes into the Grouting Pipe for reinforcing of certain length along pipeline jacking direction in the guide pipe.
2. a kind of advance reinforcement structure of push pipe inlet and outlet cave according to claim 1, it is characterised in that: the guide pipe
It is distributed along the push pipe inlet and outlet cave surrounding in circular ring shape.
3. a kind of advance reinforcement structure of push pipe inlet and outlet cave according to claim 1 or 2, it is characterised in that: described to lead
To pipe equidistant interval.
4. a kind of advance reinforcement structure of push pipe inlet and outlet cave according to claim 3, it is characterised in that: the guide pipe
Interior to be filled with clay, nozzle is sealed using M30 mortar.
5. a kind of advance reinforcement structure of push pipe inlet and outlet cave according to claim 1, it is characterised in that: the Grouting Pipe
Length is 4m-5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821231431.9U CN208778010U (en) | 2018-08-01 | 2018-08-01 | A kind of advance reinforcement structure of push pipe inlet and outlet cave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821231431.9U CN208778010U (en) | 2018-08-01 | 2018-08-01 | A kind of advance reinforcement structure of push pipe inlet and outlet cave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778010U true CN208778010U (en) | 2019-04-23 |
Family
ID=66155167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821231431.9U Expired - Fee Related CN208778010U (en) | 2018-08-01 | 2018-08-01 | A kind of advance reinforcement structure of push pipe inlet and outlet cave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737771A (en) * | 2021-09-24 | 2021-12-03 | 广东一新长城建筑集团有限公司 | Pipe jacking well opening soil body reinforcing process for soft soil foundation |
| CN113863937A (en) * | 2021-08-31 | 2021-12-31 | 中国二十冶集团有限公司 | Reinforcing construction method for rectangular pipe jacking tunnel door |
-
2018
- 2018-08-01 CN CN201821231431.9U patent/CN208778010U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863937A (en) * | 2021-08-31 | 2021-12-31 | 中国二十冶集团有限公司 | Reinforcing construction method for rectangular pipe jacking tunnel door |
| CN113737771A (en) * | 2021-09-24 | 2021-12-03 | 广东一新长城建筑集团有限公司 | Pipe jacking well opening soil body reinforcing process for soft soil foundation |
| CN113737771B (en) * | 2021-09-24 | 2022-06-28 | 广东一新长城建筑集团有限公司 | Pipe jacking well opening soil body reinforcing process for soft soil foundation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20190423 |