CN106545009A - A kind of sponge water-retention stake and its construction method - Google Patents
A kind of sponge water-retention stake and its construction method Download PDFInfo
- Publication number
- CN106545009A CN106545009A CN201610918891.8A CN201610918891A CN106545009A CN 106545009 A CN106545009 A CN 106545009A CN 201610918891 A CN201610918891 A CN 201610918891A CN 106545009 A CN106545009 A CN 106545009A
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- Prior art keywords
- water
- stake
- sand
- retention
- sponge
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of sponge water-retention stake, it is characterised in that multiple sponge water-retention stakes are arranged in soft soil foundation, the sponge water-retention stake is formed by seepy material is thrown in coconut shred bag and pile is vibrated.Wherein sandstone is gravel sand, coarse sand, medium coarse sand, middle sand, graded sand and stone or rubble.The water-absorption particle is the one kind in super absorbent resin, including starch grafted acrylate class, graft acrylamide, high substituted degree cross-linked carboxymethyl cellulose, cross-linked carboxymethyl cellulose graft acrylamide, cross-linking type hydroxyethyl cellulose graft acrylamide polymer or arbitrarily various combinations.The present invention is applied to the spongeization of the soft foundations such as muck soil, marine clay, mud, contributes to solving many practical problems of sponge construction activity engineering, cost-effective, the reduction of erection time, improves construction quality, there is provided more preferable prospect.
Description
Technical field
Sponge urban construction technical field of the present invention involved by civil engineering and municipal works, and in particular to Yi Zhonghai
Continuous water-retention stake.
Background technology
Sponge city refers to that city can have the aspect such as environmental change and reply natural disaster is adapted to as sponge
Good " elasticity ", water suction, water-retention, infiltration, water purification when rainy by the water for storing " release " and are used when needing.But
China strand and riparian area have large-scale soft soil foundation, and infiltration coefficient very little, water-holding capacity are limited, it is difficult to realize inhaling
Water, water-retention, infiltration, the purpose of water purification.
The purpose of sponge water-retention stake technology is that and overcomes drawbacks described above, and design, research one kind make to realize that soft soil foundation has
There are good water suction, infiltration, the engineering measure of water-retention performance.
The technology mainly absorbs the construction technology advantage of sand wick, using the piling construction machinery of similar sand wick
Pore-forming is carried out, the expense of setting will be substantially reduced.Concrete fill is carried out using mould bag technique, it is ensured that the company of concrete pile
Continuous property and globality, it is to avoid broken pile is produced.
The content of the invention
It is an object of the invention to provide a kind of sponge water-retention stake, solves soft soil foundation rainwater infiltration and stores asking for difficulty
Topic, realizes solving sponge city construction engineering practical problems cost-effective purpose.
To achieve these goals, the technical scheme is that：A kind of sponge water-retention stake, it is characterised in that soft soil foundation
Interior to arrange multiple sponge water-retention stakes, the sponge water-retention stake is formed by seepy material is thrown in coconut shred bag and pile is vibrated.
Preferably, the seepy material includes coconut shred, water-absorption particle and sandstone, wherein coconut shred：Water-absorption particle：The body of sandstone
Product ratio is 5 ~ 15%：1~5%：80~94%.
Preferably, sandstone is gravel sand, coarse sand, medium coarse sand, middle sand, graded sand and stone or rubble.
Preferably, the water-absorption particle is super absorbent resin, including starch grafted acrylate class, grafted propylene acyl
Amine, high substituted degree cross-linked carboxymethyl cellulose, cross-linked carboxymethyl cellulose graft acrylamide, cross-linking type hydroxyethyl cellulose connect
One kind or arbitrarily various combinations in branch acrylamide polymer.
According to a preferred embodiment of the invention, pile spacing is 0.5～1.5m, and stake footpath is 30～60cm, a length of 3～10m of stake.
Preferably, the sponge water-retention stake horizontal layout is using square or quincunx.
Another object of the present invention is to a kind of construction method of sponge water-retention stake is provided, to solve under soft soil foundation rainwater
The problem of difficulty is oozed and stored, realizes solving sponge city construction engineering practical problems cost-effective purpose.
To achieve these goals, technical scheme is as follows：A kind of construction method of sponge water-retention stake, its feature
It is that the method is comprised the following steps：A, making coconut shred bag；B, material of body of a pile is prepared, the material of body of a pile includes coconut shred, water suction
Granule and sandstone, wherein coconut shred：Water-absorption particle：The volume ratio of sandstone is 5 ~ 15%：1~5%：80~94%；C, stake machine pore-forming, will
Steel sleeve pipe sinks to desired depth；D, mix uniform material of body of a pile is poured in coconut shred bag；E, part material of body of a pile will be poured into
Coconut shred bag be put into steel sleeve pipe, continue to throw in material of body of a pile to coconut shred bag, and in vibration on pull out steel sleeve pipe until reaching
To ground.
Preferably, in step C, the steel sleeve pipe for being cased with pervious concrete end boots is sunk to into desired depth.
Preferably, sandstone is gravel sand, coarse sand, medium coarse sand, middle sand, graded sand and stone or rubble.
Preferably, the water-absorption particle is super absorbent resin, including starch grafted acrylate class, grafted propylene acyl
Amine, high substituted degree cross-linked carboxymethyl cellulose, cross-linked carboxymethyl cellulose graft acrylamide, cross-linking type hydroxyethyl cellulose connect
One kind or arbitrarily various combinations in branch acrylamide polymer.
Advantages of the present invention and effect are due to having used coconut shred bag so that pile body is continuously without necking down pile breaking phenomenon.Should
There is good storage to ooze rainwater function for stake, it is possible to resolve soft soil foundation rainwater infiltration and store the problem of difficulty, realize solving sponge city
City's construction project practical problems cost-effective purpose.Sponge water-retention stake technology is soft soil foundation and sponge urban construction technology
With the new technique compared with quantum jump during cross development.
Description of the drawings
Horizontal layout schematic diagrams of the Fig. 1 for one embodiment of the invention.
Optimal crosssection schematic diagrams of the Fig. 2 for one embodiment of the invention.
Structural representations of the Fig. 3 for sponge water-retention stake.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
A kind of sponge water-retention stake improves soft soil foundation, it is characterised in that multiple sponge water-retention stakes 1 are arranged in soft soil foundation 3,
The sponge water-retention stake 1 is formed by seepy material is thrown in coconut shred bag and pile is vibrated, between the plurality of sponge water-retention stake 1
Every setting, pile spacing is 0.5～1.5m, the long generally 3 ~ 10m of stake, and stake footpath is 30～60cm, the plurality of sponge water-retention stake
Stake top sets the permeable bed course 2 of strip, and on the bed course lays other materials 4 according to requirement of engineering.
Outside pile body, mould bag is coconut shred bag, is made using coconut husk material, must possess that tensile property is good, resistance to corrosion strong,
Water permeability is good, toughness and it is flexible the features such as.
Special water-absorption particle is employed herein, is made using super absorbent resin, High hydrophilous resin is a kind of new
Functional high molecule material, with hydrophilic group, can absorb moisture in a large number and swelling can maintain the synthesis tree that moisture does not outflow
Fat, such as starch grafted acrylate class, graft acrylamide, high substituted degree cross-linked carboxymethyl cellulose, cross-linked carboxymethyl fiber
Plain graft acrylamide, cross-linking type hydroxyethyl cellulose graft acrylamide polymer etc., typically can absorb equivalent to resin
The moisture that more than 100 times of volume.It is particularly suited for the spongeization of the soft foundations such as muck soil, marine clay, mud, contributes to solution
Certainly many practical problems of sponge construction activity engineering, cost-effective, reduction of erection time, improve construction quality, there is provided more preferably
Prospect.
Embodiment of the present invention shown in Fig. 1 to Fig. 2 is.
The planar cloth processed using sponge water-retention stake when improveing for a sponge city construction engineering soft soil foundation shown in Fig. 1
Schematic diagram is put, stake in figure is quincuncial arrangement, pile spacing generally 0.5 ~ 1.5m.
Fig. 2 show the optimal crosssection schematic diagram of sponge city construction engineering soft soil foundation, and in figure, H is that stake is long（H is general
For 3 ~ 10m）, stake top sets the permeable bed course of strip（Thickness is generally 10 ~ 30cm）, on bed course for needed for engineering filler.
The construction technology of the present invention：
1）Coconut shred bag 5 makes.Made using coconut husk material, must possess that tensile property is good, resistance to corrosion is strong, water permeability good,
Toughness and it is flexible the features such as.The coconut shred bag is worked out using the coconut shred fiber of coconut husk material disintegrating synthetic, fine
Dimension diameter is preferably 1 ~ 10mm, and mass area ratio is preferably 40-800g/m2, tensile strength >=8 KN/m, elongation percentage 30 ~
60%, effective aperture is preferably 0.07 ~ 2mm, and infiltration coefficient is not less than 1cm/s.
2）It is prepared by pile shaft material.Forced action type stirs field fabrication pile shaft material, and pile shaft material is containing coconut shred and super absorbent resin
The water permeability good materials such as the gravel sand of fat granule, coarse sand, medium coarse sand, middle sand, graded sand and stone or rubble.General coconut shred：It is special
Water-absorption particle processed：The volume ratio of the water permeability good materials such as gravel sand, coarse sand, medium coarse sand, middle sand, graded sand and stone or rubble
For 5 ~ 15%：1~5%：80~94%.High hydrophilous resin granule 7 is preferably circular or oval, and equivalent diameter is preferably 0.5 ~ 5mm.Sandstone 6
Prior art pile shaft material can be adopted, be will not be described here.
3）Stake machine pore-forming.The steel sleeve pipe for being cased with pervious concrete end boots is sunk to into desired depth.
4）The pile shaft material of stirring is manually or mechanically poured into into about 50cm in coconut shred bag.
5）The coconut shred bag for being inoculated with part pile shaft material is put into into sleeve pipe sinks to and require depth, continue to throw in material of body of a pile to coconut palm
In silk bag, and in vibration on pull out steel sleeve pipe until reach ground, complete a sponge water-retention pile driving construction.
Embodiment：
Certain engineering is littoral soft soil ground, and original ground top layer has thicker very soft sill clay layer and causes rainfall infiltration to be stranded
It is difficult.4m or so below the about in situ face of level of ground water.If do not processed, it is difficult to realize the function and mesh of sponge urban construction
's.
Therefore processed using sponge water-retention stake.Parameter：Stake footpath 50cm, the long 4.5m of stake, pile spacing 1.5m, blossom type cloth
Put, process range is place border of the draw up for rainfall infiltration function.
Jing field measurements and sunykatuib analyses：After process, rainwater infiltration speed is obviously improved more than an order of magnitude, water-retention energy
Power lifts more than an order of magnitude, realizes the function and purpose of sponge urban construction.The method construction is quick, pollution-free, is one
Plant and improve to realize that good storage oozes the novel technical method of rainwater function suitable for soft soil foundation.
Claims (8)
1. a kind of sponge water-retention stake, it is characterised in that multiple sponge water-retention stakes are set in soft soil foundation, the sponge water-retention stake by
Seepy material is thrown in coconut shred bag and is vibrated pile and is formed.
2. a kind of sponge water-retention stake as claimed in claim 1, it is characterised in that the seepy material includes coconut shred, water suction
Grain and sandstone, wherein coconut shred：Water-absorption particle：The volume ratio of sandstone is 5 ~ 15%：1~5%：80~94%.
3. a kind of sponge water-retention stake as claimed in claim 2, it is characterised in that sandstone be gravel sand, coarse sand, medium coarse sand, in
Sand, graded sand and stone or rubble.
4. a kind of sponge water-retention stake as claimed in claim 2, it is characterised in that the water-absorption particle is super absorbent resin,
Including starch grafted acrylate class, graft acrylamide, high substituted degree cross-linked carboxymethyl cellulose, cross-linked carboxymethyl cellulose
One kind or arbitrarily various combinations in graft acrylamide, cross-linking type hydroxyethyl cellulose graft acrylamide polymer.
5. a kind of sponge water-retention stake as claimed in claim 1, it is characterised in that stake footpath is 30～60cm, a length of 3～10m of stake.
6. a kind of construction method of sponge water-retention stake, it is characterised in that the method is comprised the following steps：A, making coconut shred bag；B, system
Standby material of body of a pile, the material of body of a pile include coconut shred, water-absorption particle and sandstone, wherein coconut shred：Water-absorption particle：The volume ratio of sandstone
Example is 5 ~ 15%：1~5%：80~94%；Steel sleeve pipe is sunk to desired depth by C, stake machine pore-forming；D, by mix uniform pile body material
Material is poured in coconut shred bag；E, the coconut shred bag for pouring into part material of body of a pile is put into steel sleeve pipe, continues to throw in material of body of a pile to coconut palm
In silk bag, and in vibration on pull out steel sleeve pipe until reach ground.
7. a kind of construction method of sponge water-retention stake as claimed in claim 6, it is characterised in that sandstone be gravel sand, coarse sand,
Medium coarse sand, middle sand, graded sand and stone or rubble.
8. a kind of construction method of sponge water-retention stake as claimed in claim 6, it is characterised in that the water-absorption particle is high suction
Water-base resin, including starch grafted acrylate class, graft acrylamide, high substituted degree cross-linked carboxymethyl cellulose, crosslinking carboxylic
One kind or arbitrarily various in methylcellulose graft acrylamide, cross-linking type hydroxyethyl cellulose graft acrylamide polymer
Combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918891.8A CN106545009A (en) | 2016-10-21 | 2016-10-21 | A kind of sponge water-retention stake and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610918891.8A CN106545009A (en) | 2016-10-21 | 2016-10-21 | A kind of sponge water-retention stake and its construction method |
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| Publication Number | Publication Date |
|---|---|
| CN106545009A true CN106545009A (en) | 2017-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610918891.8A Pending CN106545009A (en) | 2016-10-21 | 2016-10-21 | A kind of sponge water-retention stake and its construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109409694A (en) * | 2018-09-30 | 2019-03-01 | 昆山市建设工程质量检测中心 | Plot sponge city performance check-up target calculation method based on measured value |
| CN110344471A (en) * | 2019-07-06 | 2019-10-18 | 李厅 | A kind of garden paving and the integrated construction method of rainwater-collecting |
| CN114009308A (en) * | 2021-11-16 | 2022-02-08 | 淮安大华生物科技有限公司 | Vegetable seedling raising substrate and preparation method thereof |
| CN114908785A (en) * | 2022-05-16 | 2022-08-16 | 郭福杰 | Drainage device for construction site foundation pit construction |
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| CN103938609A (en) * | 2014-04-17 | 2014-07-23 | 山东大学 | Composite foundation composed of rubble/ sand inverted filter layer and porous concrete piles and treatment method |
| CN104480956A (en) * | 2014-10-31 | 2015-04-01 | 上海市政工程设计研究总院（集团）有限公司 | Small-diameter mold-bagged concrete pile composite foundation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109409694A (en) * | 2018-09-30 | 2019-03-01 | 昆山市建设工程质量检测中心 | Plot sponge city performance check-up target calculation method based on measured value |
| CN109409694B (en) * | 2018-09-30 | 2020-11-06 | 昆山市建设工程质量检测中心 | Land parcel sponge city performance assessment index calculation method based on measured value |
| CN110344471A (en) * | 2019-07-06 | 2019-10-18 | 李厅 | A kind of garden paving and the integrated construction method of rainwater-collecting |
| CN114009308A (en) * | 2021-11-16 | 2022-02-08 | 淮安大华生物科技有限公司 | Vegetable seedling raising substrate and preparation method thereof |
| CN114908785A (en) * | 2022-05-16 | 2022-08-16 | 郭福杰 | Drainage device for construction site foundation pit construction |
| CN114908785B (en) * | 2022-05-16 | 2024-01-26 | 郭福杰 | Drainage device for construction of foundation pit of building site |
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