CN104878739A - Drainage material assembly capable of being transversely connected with plastic drainage boards and method for constructing drainage material assembly - Google Patents

Drainage material assembly capable of being transversely connected with plastic drainage boards and method for constructing drainage material assembly Download PDF

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Publication number
CN104878739A
CN104878739A CN201510163923.3A CN201510163923A CN104878739A CN 104878739 A CN104878739 A CN 104878739A CN 201510163923 A CN201510163923 A CN 201510163923A CN 104878739 A CN104878739 A CN 104878739A
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China
Prior art keywords
drainage
plastic draining
draining board
water discharging
vertical drainage
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CN201510163923.3A
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Chinese (zh)
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CN104878739B (en
Inventor
陈庚
陈永辉
彭中浩
徐锴
李秉宜
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河海大学
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Publication of CN104878739A publication Critical patent/CN104878739A/en
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Publication of CN104878739B publication Critical patent/CN104878739B/en

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Abstract

The invention discloses a drainage material assembly capable of being transversely connected with plastic drainage boards and a method for constructing the drainage material assembly, and belongs to the field of buildings. The method includes forming permeable holes on rigid pipes by means of perforation; wrapping the rigid pipes by filter cloth; forming certain quantities of drainage ports of the plastic drainage boards on the pipe walls at different depths; sealing the drainage ports by sealing rings and then connecting the drainage ports with the plastic drainage boards to form transverse drainage channels; further forming three-dimensional drainage materials. The rigid pipes are used as vertical drainage pipes. The drainage material assembly and the method have the advantages that the three-dimensional drainage materials can be arranged in to-be-processed ultra-soft soil by the aid of drainage material press-in forms, so that the drainage distances of processed soil can be shortened, the engineering construction periods can be shortened, and reinforcement effects can be improved; vertical drainage main pipes of the drainage materials can be selectively recycled after construction, so that the construction manufacturing cost can be reduced.

Description

Can the water discharging body assembly of lateral connection plastic draining board and construction method thereof
Technical field
The present invention relates to and use water discharging body to carry out soil body stabilization by drainage, belong to building field.
Technical background
Along with China's economic construction development especially " 12 " planning outline propose advance marine economy development after, coastal cities must promote for the requirement of border on the sea land-based area area and development rate, cause quantity and the development rate also fast development of reclamation engineering.Traditional reclaiming land around sea generally adopts sand material to be main, but yields by the impact of environmental protection, water conservancy safety and sand material price.Current China reclamation engineering filler used major part is the weak permeability such as mucky soil or organic clay, the weak barged-in fill of high saturability, low-intensity, high rheological variation is main, in short time after hydraulic reclamation completes the land-based area soil body because of its moisture content high, intensity and bearing capacity are extremely low and can not carry out the relevant treatment of ground in time.In addition, China's cruiseway lake all can produce a large amount of dredging silts every year, and desilting mud is stacked airing for a long time and all be there is certain pollution and waste to environment and land used resource.
With regard to the reclamation engineering of blowing-filling sludge soil, need to its shallow top layer super soft weak soil in advance drainage sunk well to being formed, there is the crust layer of some strength and thickness; For the dredging silt in stockyard, then need to carry out drainage sunk well to reduce soil moisture content to it.To sum up, above engineering problem is core is all the moisture content how reducing shallow top layer mud fast.
At present, in reclamation engineering, the Treatment Methods of shallow top layer ultra-soft soil mainly contains: the first, natural drying: the general airing of this method at least needs 1 year and is subject to weather effect, and efficiency of construction is very low.The second, at floating platform or in advance laying geotextile or grid manually plug the vertical plastic draining board combined vacuum preloading method of shallow-layer treating depth and carry out drainage sunk well, because of high-moisture percentage and the hypotonicity of mud, general need carry out vacuum preloading 1 ~ 3 month, simultaneously because blowing-filling sludge deflection is very large, common plastics band drain will produce wide-angle bending and then affect the transmission of vacuum and the smooth and easy of drainage channel.And the water discharge method of dredging silt carries out vacuum dehydration process to drainage channel to mud in length and breadth mainly through pre-setting rigidity in stockyard, this method can accelerate the drainage rates of mud greatly, but pre-set water discharging body to insert process to mud and there are certain requirements, and the rigid drainage body that process terminates reclaims comparatively loaded down with trivial details, therefore this method is not suitable for the drainage works of large area barged-in fill or desilting soil.
In addition, reclaim fields from the sea often there is soil body process in barged-in fill process engineering after the phenomenon of intensity skewness in plastic strip plate radial direction, easy appearance " native stake " phenomenon, affects treatment effect, this mainly due to the drainage channel in the soil body caused by single vertical drainage passage.
To sum up, urgently research and develop and be a kind ofly applicable to the rapidly solidified rear forced water discharging body of large area shallow top layer super soft weak soil, to can combined vacuum precompressed fast and treatment effect preferably shallow top layer super soft weak soil is processed, and do not need to pre-set and be easy to use.
Summary of the invention
The object of the invention is to adopt can the water discharging body of lateral connection plastic draining board, by specific press-in die, water discharging body is squeezed into the shallow top layer of super soft weak soil, the transverse drainage passage of local is formed at the inner different depth of shallow top layer soft soil, and then acceleration soil solidifying, improve consolidation effect simultaneously.
In order to realize above-mentioned object, invention have employed following technical scheme:
Can the water discharging body assembly of lateral connection plastic draining board, comprising: water discharging body, press-in die; Described water discharging body comprises vertical drainage supervisor, is positioned at the enlarged footing of vertical drainage supervisor bottom and is positioned at the top sub at vertical drainage supervisor top; The tube wall of vertical drainage supervisor evenly offers permeable aperture and is wrapped up by permeable filter cloth or geotextiles outside the tube wall of vertical drainage supervisor; The tube wall at described vertical drainage supervisor different depth place is offered the outfall for grafting plastic draining board, and same pipeline depth place opens multiple outfall;
Described press-in die is be set in the outside rigidity tubing of described vertical drainage supervisor; On described rigidity tubing, corresponding described outfall place leaves mould outfall.
Further, described outfall comprises and is symmetricly set on first row mouth of a river group on vertical drainage supervisor tube wall and second row mouth of a river group, and described in the upper vertical being positioned at first row mouth of a river group and second row mouth of a river group, vertical drainage supervisor tube wall is fixedly connected with water discharging body contact plate respectively.
Further, the mould outfall on described press-in die comprises the first mould outfall of corresponding described first row mouth of a river group and the second mould outfall of correspondence described second row mouth of a river group, and the top of described first mould outfall is provided with inverted " U " shape groove; The upper vertical of described second mould outfall is provided with press-in die contact plate.
Further, described first row mouth of a river group and second row mouth of a river group all install anticorrosion elastic tape;
Further, described inverted " U " shape slot welding is connected on press-in die, and its " U " shape opening size is greater than used plastic draining plate thickness, " U " length of shape groove is more than or equal to the length of plastic draining board; " U " height of shape groove equals the width of plastic draining board.
Further, described permeable aperture is arranged on apart from top sub 50cm place, and described permeable aperture is triangular in shape, quadrangle or quincuncial pile shape are arranged in vertical drainage and are responsible on tube wall, and its diameter is not more than 10mm, and pitch of holes is 50mm.
Further, described vertical drainage supervisor is any one in pvc pipe, PE pipe or metal tube; Described vertical drainage supervisor upper port place is provided with the screw thread connecting earth's surface transverse drainage duct.
Utilize described can the construction method of water discharging body assembly of lateral connection plastic draining board, comprise following step:
The first step, press-in die is coated at the vertical drainage supervisor connecting horizontal plastic draining board, manually press-in die and water discharging body is together pressed in ultra-soft soil setting a place in advance;
Second step, by connect horizontal plastic draining board vertical drainage supervisor press-in soil in after, above pull out press-in die, repeat the first step construction;
After the vertical drainage supervisor of the 3rd step, horizontal plastic draining board to be connected sets, described top sub connects transverse drainage pipeline or drainage blanket, forms top drainage system, and open vacuum equipment and absorb water;
4th step, arrive and estimate after treatment effect, stop inhaling vacuum, and pull out machinery on using and extract the soil body by outer for callable vertical drainage supervisor, plastic draining board then stays and is embedded in soil.
beneficial effect:
Adopt that the present invention is a kind of can the water discharging body assembly of lateral connection plastic draining board and construction method to compare existing apparatus and method, there is following beneficial effect:
The first, large water-flowing amount vertical drainage pipe is adopted, vertical passageway section tubular wall sets permeable aperture and permeable filter cloth or geotextiles packing, the tube wall at different depth place is offered the outfall of a certain amount of plastic draining board, and outfall place adopts square type rubber ring to make encapsulation process.
2nd, is setting permeable aperture, to make upper strata silt soil can be utilized as sealant at drainage period internal drainage body after upper interface certain distance on tube wall; .
Three, outfall is offered position and can be uniformly distributed along duct orientation, and same pipeline depth place can begin to rehearse 2 ~ 4, the mouth of a river; Above outfall, arrange contacting dies plate can be pressed into together in pending super soft weak soil to make the plastic draining board of water discharging body and lateral connection thereof under press-in die effect.
Accompanying drawing explanation
Fig. 1 is that the present invention can the elevation of water discharging body assembly of lateral connection plastic draining board;
Fig. 2 is that the present invention can the top view of water discharging body assembly of lateral connection plastic draining board;
Fig. 3 has connected the water discharging body elevation of plastic draining board;
Fig. 4 has connected the water discharging body top view of plastic draining board;
Fig. 5 has connected the water discharging body stereogram of plastic draining board;
Fig. 6 is press-in die elevation;
Fig. 7 is press-in die top view;
Fig. 8 is for connecting plastic draining board draining schematic diagram;
Fig. 9 is the water discharging body construction schematic diagram connecting plastic draining board;
In figure: 1-top sub, 2-vertical drainage supervisor, the permeable aperture of 3-, 4-water discharging body contact plate, 5-rubber sealing ring, 6-outfall, 7-outsourcing filter cloth, the vertical drainage supervisor of 8-enlarged footing, 9-plastic draining board, 11-connection plastic draining board, 12-are inverted " U " shape notch, 13-inversion " U " shape groove, 14-press-in die contact plate, 15-press-in die; 16-drainage pipe; 17-pending shallow top layer super soft weak soil.
concrete embodiment
Below in conjunction with Figure of description, the present invention is further detailed explanation.
Described can the water discharging body assembly of lateral connection plastic draining board, be characterized in, adopt large water-flowing amount vertical drainage pipe, the tube wall of vertical drainage pipe sets permeable aperture 3 and outside utilizes permeable filter cloth or geotextiles packing, the tube wall at vertical drainage pipe different depth place is offered the outfall of a certain amount of plastic draining board, and outfall place adopts square type rubber ring to make encapsulation process.
Described can the water discharging body assembly of lateral connection plastic draining board, its further feature is that outfall is offered position and can be uniformly distributed along duct orientation, and same pipeline depth place can begin to rehearse 2 ~ 4, the mouth of a river; Above outfall, arrange contacting dies plate can be pressed into together in pending super soft weak soil to make the plastic draining board of water discharging body and lateral connection thereof under press-in die effect.
Described can the water discharging body assembly of lateral connection plastic draining board, its further feature is, vertical drainage body material can select plastic pipe or the metal pipe material such as pvc pipe, PE pipe, can select according to reclaiming the need of body; Upper port place is provided with screw thread can connect earth's surface transverse drainage duct; Pipe diameter can requirement of engineering be selected, and generally can choose 30mm ~ 50mm; Enlarged footing structure is adopted bottom water discharging body.
Described can the water discharging body assembly of lateral connection plastic draining board, its further feature is, after upper interface certain distance, setting permeable aperture, to make upper strata silt soil can be utilized as sealant at drainage period internal drainage body on tube wall; The permeable aperture that tube wall sets can be arranged by triangle, quadrangle or quincuncial pile shape, and its diameter determines according to tubing self-strength, is generally not more than 10mm;
Described can the water discharging body assembly of lateral connection plastic draining board, its further feature is, the specification of outsourcing filter cloth can be consistent with the plastic draining board filter membrane laterally used, and also can select the geotextiles that effective aperture is larger; Its point of strip substep by bulk filter cloth or the overall packing bonding of geotextiles, also can be wound around bonding by packing mode.
Described can the water discharging body assembly of lateral connection plastic draining board, its further feature is, concrete outfall size and rubber ring are determined by the plastic draining board cross sectional dimensions selected, and plastic draining board can adopt the existing band drain in market.
Described press-in die, is characterized in, after top adopts diameter to be greater than packing filter cloth water discharging body diameter, be less than the rigidity tubing of bottom enlarged footing diameter, as iron pipe or steel pipe; Offer the corresponding position of outfall and the following space left slightly larger than plastic draining plate thickness thereof at water discharging body, and establish inverted thereon " U " shape groove is with protection and drive plastic strip plate and vertical drainage body to be together pressed in pending super soft weak soil.
Described press-in die, its further feature is, inverted " U " shape slot welding is connected on vertical drainage body press-in die, and its U-shaped opening size is greater than used plastic draining plate thickness, generally can be set to 10mm; " U " shape slot length is more than or equal to the length of lateral connection plastic draining board; " U " shape groove height equals the width of lateral connection plastic draining board.
Below for the water discharging body of same depth double water-discharging outlets is example introduction, protection scope of the present invention is not limited only to lower example.
Embodiment one
Certain barged-in fill shallow top layer Project on Pre, the design treatment degree of depth is 2.5m, and the design treatment spacing of water discharging body is 1.0m.As Fig. 1, select the iron pipe 2 that vertical extension is 2.5m, internal diameter 50mm, pipe wall thickness are 5mm to do vertical drainage supervisor, the permeable aperture 3 that diameter is 3mm opened by the pipe of 50cm below upper interface, and become quincuncial pile form to carry out cloth hole, pitch of holes is 50mm.
Water discharging body enlarged footing 8 is conical, outside diameter circle 80mm, high 50mm, is directly welded in the bottom of vertical drainage supervisor 2.
Respectively offer two outfall 6 vertical drainage supervisor 2 apart from water discharging body 1 top sub 1.0 meters and 2.0 meters, outfall 6 is of a size of 110mm × 15mm, installs anticorrosion elastic tape 5 thereon.At outfall 6 upper vertical welding water discharging body contact plate 4, water discharging body contact plate 4 uses ferrous material, is of a size of 25mm × 20 mm × 5m.
Horizontal plastic draining board adopts width to be 100mm, and thickness is the Type B band drain of 5mm, and its filter membrane adopts O 95be not more than 0.075mm; Wrapping up in filter cloth outside vertical drainage supervisor 2 also adopts the identical filter membrane of a plastic strip plate point strip substep to be wound around bonding.
Water discharging body connect horizontal plastic draining board length get 40cm, be inserted into the outfall 6 of periphery with elastic tape 5, as Fig. 3 and Fig. 4.Stereogram after plugging as shown in Figure 5.
The press-in die of this water discharging body is as Fig. 6 and Fig. 7, and mould tube internal diameter and external diameter are respectively 70mm and 90mm, and the length of press-in die U-lag 13 is 40cm, and " U " shape well width is 15mm, the degree of depth is 120mm.Can Interference contact and by water discharging body contact plate 4 and water discharging body enlarged footing 8 place's power transmission, water discharging body and casing mould are pressed in soil together with water discharging body.
Fig. 9 is the water discharging body construction schematic diagram connecting plastic draining board, with reference to shown in Fig. 9, can the construction method of water discharging body of lateral connection plastic draining board, and comprise the following steps:
The first step, press-in die is coated at the water discharging body connecting horizontal plastic draining board, manually press-in die and water discharging body is together pressed in ultra-soft soil setting a place in advance;
Second step, super soft weak soil moisture content are far above its liquid limit and intensity is extremely low, being pressed into after in soil by water discharging body, above pull out press-in die, repeat first step construction;
3rd step, treat that water discharging body sets after, connect transverse drainage pipeline by upper bands screw interface thereon, interface uses sealant tape to be wound around, and forms drainage system, as shown in Figure 8, opens vacuum equipment and absorbs water;
4th step, arrive and estimate after treatment effect, stop inhaling vacuum, and pull out machinery on using and extract the soil body by outside water discharging body vertical drainage supervisor 2, plastic draining board 9 stays and is embedded in soil.

Claims (8)

1. can the water discharging body assembly of lateral connection plastic draining board, comprising: water discharging body, press-in die; Described water discharging body comprises vertical drainage supervisor, is positioned at the enlarged footing of vertical drainage supervisor bottom and is positioned at the top sub at vertical drainage supervisor top; The tube wall of vertical drainage supervisor evenly offers permeable aperture and is wrapped up by permeable filter cloth or geotextiles outside the tube wall of vertical drainage supervisor; It is characterized in that: on the tube wall at described vertical drainage supervisor different depth place, offer the outfall for grafting plastic draining board, same pipeline depth place opens multiple outfall;
Described press-in die is be set in the outside rigidity tubing of described vertical drainage supervisor; On described rigidity tubing, corresponding described outfall place leaves mould outfall.
2. according to claim 1 can the water discharging body assembly of lateral connection plastic draining board, it is characterized in that: described outfall comprises and is symmetricly set on first row mouth of a river group on vertical drainage supervisor tube wall and second row mouth of a river group, and described in the upper vertical being positioned at first row mouth of a river group and second row mouth of a river group, vertical drainage supervisor tube wall is fixedly connected with water discharging body contact plate respectively.
3. according to claim 2 can the water discharging body assembly of lateral connection plastic draining board, it is characterized in that: the mould outfall on described press-in die comprises the first mould outfall of corresponding described first row mouth of a river group and the second mould outfall of correspondence described second row mouth of a river group, and the top of described first mould outfall is provided with inverted " U " shape groove; The upper vertical of described second mould outfall is provided with press-in die contact plate.
4. according to claim 3 can the water discharging body assembly of lateral connection plastic draining board, it is characterized in that: in described first row mouth of a river group and second row mouth of a river group, anticorrosion elastic tape is all installed.
5. according to claim 4 can the water discharging body assembly of lateral connection plastic draining board, it is characterized in that: described inverted " U " shape slot welding is connected on press-in die, its " U " shape opening size is greater than used plastic draining plate thickness, " U " length of shape groove is more than or equal to the length of plastic draining board; " U " height of shape groove equals the width of plastic draining board.
6. according to claim 5 can the water discharging body assembly of lateral connection plastic draining board, it is characterized in that: described permeable aperture is arranged on apart from top sub 50cm place, described permeable aperture is triangular in shape, quadrangle or quincuncial pile shape are arranged on vertical drainage supervisor tube wall, its diameter is not more than 10mm, and pitch of holes is 50mm.
7. according to claim 6 can the water discharging body assembly of lateral connection plastic draining board, it is characterized in that: described vertical drainage supervisor is pvc pipe, any one in PE pipe or metal tube; Described vertical drainage supervisor upper port place is provided with the screw thread connecting earth's surface transverse drainage duct.
8. utilize as in claim 1 ~ 7 as described in any one can the construction method of water discharging body assembly of lateral connection plastic draining board, it is characterized in that: comprise following step:
The first step, press-in die is coated at the vertical drainage supervisor connecting horizontal plastic draining board, manually press-in die and water discharging body is together pressed in ultra-soft soil setting a place in advance;
Second step, by connect horizontal plastic draining board vertical drainage supervisor press-in soil in after, above pull out press-in die, repeat the first step construction;
After the vertical drainage supervisor of the 3rd step, horizontal plastic draining board to be connected sets, described top sub connects transverse drainage pipeline or drainage blanket, forms top drainage system, and open vacuum equipment and absorb water;
4th step, arrive and estimate after treatment effect, stop inhaling vacuum, and pull out machinery on using and extract the soil body by outer for callable vertical drainage supervisor, plastic draining board then stays and is embedded in soil.
CN201510163923.3A 2015-04-08 2015-04-08 Drainage material assembly capable of being transversely connected with plastic drainage boards and method for constructing drainage material assembly CN104878739B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106381862A (en) * 2016-11-04 2017-02-08 宁波大学 Vertical and transverse drainage system and construction method
CN106555394A (en) * 2017-01-12 2017-04-05 广西大学 A kind of excessively moist ultra-soft soil drainage arrangement of artificial hydraulic reclamation
CN106638549A (en) * 2016-09-21 2017-05-10 同济大学 Reclamation area preformed sand well-plastic drainage plate composite drainage and decontamination device
CN106703009A (en) * 2017-01-05 2017-05-24 天津大学 Vacuum preloading drainage assembly
CN107806084A (en) * 2017-10-27 2018-03-16 河海大学 A kind of hard and soft formula displacement hull and its construction method
CN110714456A (en) * 2019-09-29 2020-01-21 温州大学 Novel drainage plate structure based on traditional drainage plate upper quick-mounting transverse drainage body and construction method thereof

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Publication number Priority date Publication date Assignee Title
JP2003055951A (en) * 2000-12-13 2003-02-26 Maruyama Kogyo Kk Improving method and improving device for soft ground
CN101148872A (en) * 2007-10-12 2008-03-26 河海大学 Light opening wedge fast flashboard machine for treating yard sludge
CN101357817A (en) * 2008-09-11 2009-02-04 中国科学院武汉岩土力学研究所 Stereoscopic network drainage for accelerating water drainage consolidation velocity of hydraulic mud fill sludge
CN102226337A (en) * 2011-04-22 2011-10-26 河海大学 Three-dimensional drain and construction method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003055951A (en) * 2000-12-13 2003-02-26 Maruyama Kogyo Kk Improving method and improving device for soft ground
CN101148872A (en) * 2007-10-12 2008-03-26 河海大学 Light opening wedge fast flashboard machine for treating yard sludge
CN101357817A (en) * 2008-09-11 2009-02-04 中国科学院武汉岩土力学研究所 Stereoscopic network drainage for accelerating water drainage consolidation velocity of hydraulic mud fill sludge
CN102226337A (en) * 2011-04-22 2011-10-26 河海大学 Three-dimensional drain and construction method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106638549A (en) * 2016-09-21 2017-05-10 同济大学 Reclamation area preformed sand well-plastic drainage plate composite drainage and decontamination device
CN106381862A (en) * 2016-11-04 2017-02-08 宁波大学 Vertical and transverse drainage system and construction method
CN106703009A (en) * 2017-01-05 2017-05-24 天津大学 Vacuum preloading drainage assembly
CN106555394A (en) * 2017-01-12 2017-04-05 广西大学 A kind of excessively moist ultra-soft soil drainage arrangement of artificial hydraulic reclamation
CN106555394B (en) * 2017-01-12 2019-01-22 广西大学 A kind of excessively moist ultra-soft soil drainage arrangement of artificial hydraulic reclamation
CN107806084A (en) * 2017-10-27 2018-03-16 河海大学 A kind of hard and soft formula displacement hull and its construction method
CN110714456A (en) * 2019-09-29 2020-01-21 温州大学 Novel drainage plate structure based on traditional drainage plate upper quick-mounting transverse drainage body and construction method thereof

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