A kind of the prefabricated pile device and its construction method of the fast permeable speed of self-pressurization
Technical field
The present invention relates to a kind of prefabricated pile device and method of the fast permeable speed of self-pressurization, belong to applying in field of civil engineering
Work technology class mainly applies the urban construction of city sponge, accelerates infiltration of the rainwater into the soil body.
Background technique
In previous urban construction, the control of rainwater is with " quickly excluding " and " end concentration " for basic concept.And it is this
Way is exactly that the major reason of urban waterlogging occurs.A large amount of rainwater are drained, and are generally utilized coarse pipe duct system, are realized rainwater
Collect and concentrate nearby discharge.If encountering heavy rain, a large amount of rainfall runofves and its pollutant of carrying are defeated in the shorter time
It send to pipe duct end, leads to downstream area waterlogging increased risk.
In fact, if most of rainwater is left rather than is drained, rainwater can be realized to the maximum extent in urban area
Accumulation, infiltration and purification, promote the utilization and ecological environmental protection of rainwater resource.Rainwater stays few row more, is just " sponge city
The basic concept in city ".
Sponge city is exactly to liken city as sponge, and encountering " can absorb, deposit on the spot or nearby when having rainfall
Storage, infiltration, purification " runoff rainwater, recharge of groundwater adjust water saving circulating, and the water that will be stored of having ready conditions in drought and water shortage " is released
Put " it comes out and is used, to allow migratory movement of the water in city more " nature ".That is, " sponge city " has
Hope that the water for largely draining into pipe duct end originally is the links such as, which pass through absorption in advance, save, permeate, to be digested, and is become to crack and " is met rain
Must flood " effective way.
After sponge city is built up, the rainwater drained and the rainwater left will realize " projecting ".For example, with previous seat city
70% water all discharges into fastly drains into pipeline, and sponge city then will allow 70% water to leave.
Sponge city refers to that city can have in terms of adapting to environmental change and reply as sponge
Good " elasticity ", water suction, water storage, infiltration, water purification when raining, the water stored when needing discharged and be used.Sponge city
City's construction should follow the principles such as Ecology Precedence, and natural way is combined with artificial measures, ensure municipal drainage prevention waterlogging safety
Under the premise of, realize that rainwater in the accumulation, infiltration and purification of urban area, promotes the utilization and life of rainwater resource to the maximum extent
State environmental protection.In sponge Process of Urban Development, the systematicness of natural precipitation, surface water and groundwater should be planned as a whole, coordinate to
Each link of the water circulation uses such as water, draining, and consider its complexity and chronicity.A kind of prefabricated pile dress of the fast permeable speed of self-pressurization
It sets and method, mainly applies the urban construction of city sponge, accelerate infiltration of the rainwater into the soil body, final purpose is that rainwater to the greatest extent may be used
More than energy stay in " cavernous body " more.
Summary of the invention
That the object of the present invention is to provide a kind of structures is simple, convenient for execute-in-place, project cost is cheap, meets roofing rain
Quickly the lower water permeable device seeped and method, the present invention make full use of the engineering characteristic of foundation pile to water, and the prefabricated pile of fast permeable speed is arranged
Device forms the technology for blending stagnant storage under a kind of quickly and effectively rain water on roof, meets using the head pressure of rain water on roof
The construction characteristics in " sponge city ".
Technical scheme is as follows:
The present invention provides a kind of prefabricated pile device of fast permeable speed of self-pressurization, including top plate and bottom plate, ribbing steel pipe, reinforcing bar
Concrete permeable structure, the reinforced concrete permeable structure are sheathed on outside ribbing steel pipe, and the top plate and bottom plate are solid respectively
Due to prefabricated pile device both ends, and it is equipped with the through-hole being connected with ribbing steel pipe, ribbing steel pipe and reinforced concrete permeable structure
Between there are gap, form cavity, fill 3 D stereo porous material in the cavity, in the reinforced concrete permeable structure
Equipped with drainage mouth, and liner geotextiles loaded filter.
Further, the inside of the ribbing steel pipe is fixedly installed several ribbed stiffeners.
Further, the drainage opening's edge prefabricated pile device is axially and radially evenly arranged.
Further, the prefabricated pile device is prefabricated tubulose or rectangular.
Further, it is connect in the top plate setting duct of the prefabricated pile device with roof drainage system.
Further, overflow device is arranged in the drainage system, and the gap of overflow device is connect with drainage pipeline, the city Xia Tong
Political affairs drainage pipeline networks, the difference of gap absolute altitude and level of ground water absolute altitude form maximum head pressure, thus determine pipeline pressure-bearing lotus
It carries.
Further, two preserved pipelines, a water inlet, another exhaust and row are set in the top plate of the prefabricated pile device
Cleaning system is washed away in maintenance phase formation in water, two root canal roads.
The present invention also provides a kind of construction methods of the prefabricated pile device of the fast permeable speed of self-pressurization, include the following steps:
1) pile extension: more than the ordinary water level of underground or soil layer range or non-pressure water or weak pressure-bearing water area that permeability is strong
The prefabricated pile device of the fast permeable speed of self-pressurization is set;
2) piling: the prefabricated pile device form of construction work of fast permeable speed is identical as the conventional construction method of prefabricated pile, uses static pressure
Method or hammer-impact construction;
3) stake is cut: in the case where needing to lengthen prefabricated pile device: or by bottom plate using welding or cementing side
Method, at the top of conventional prefabricated pile ring flange or pre-embedded steel slab be coupled;Or segmentation takes welding or cementing method to be connect
Pile driving construction carries out cutting stake when reaching construction elevation, and the ribbing power transmission steel pipe for cutting stake position is fixed with top plate to be coupled;
4) top plate is coupled: the fast prefabricated pile device of permeable speed and the bind mode of pile foundation support table, identical as conventional prefabricated pile;
5) top plate pipe link: the top plate reserving hole channel of fast permeable speed prefabricated pile device passes through pipeline and roof drainage system
It is connected, pipeline passes through pile foundation support table;
6) top plate pipeline and roof drainage system connection: the top plate of fast permeable speed prefabricated pile device sets two root canal roads, and one
Overflow device is arranged in pipeline and roof drainage system connection, drainage system, and spillway hole is connected with city planting ductwork;It does in another root canal road
Exhaust, drainage hole, are arranged valve, and cleaning system is washed away in maintenance phase formation in two root canal roads.
The beneficial effects of the invention are that: it is applied to sponge urban construction, infiltration of the rainwater into the soil body, final mesh can be accelerated
Be that rainwater mostly and is as soon as possible stayed in the soil body as far as possible.Construction method is easy, feasible, can house, public building and
Application is carried out in structures construction.
Detailed description of the invention
Fig. 1 is the appearance assumption diagram of apparatus of the present invention.
Fig. 2 is the longitudinal sectional drawing along the central axes Fig. 1.
Fig. 3 is the transverse cross-sectional view of Fig. 1.
Fig. 4 cuts stake top plate welding schematic diagram.
The prefabricated pile device of the fast permeable speed of Fig. 5 self-pressurization is coupled (welding or cementing) with conventional prefabricated pile.
The connection (welding or cementing) of the fast permeable speed prefabricated pile device of the multiple self-pressurizations of Fig. 6.
The prefabricated pile device of the fast permeable speed of Fig. 7 self-pressurization.
In figure: 1- top plate;2- drainage mouth;3- bottom plate;4- ribbing steel pipe;5- ribbed stiffener;6- 3 D stereo porous material;7-
Geotextiles loaded filter;8- reinforced concrete permeable structure;9- weld seam;10- drainage pipeline;11- valve;12- overflow device.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of structure of the prefabricated pile device of the fast permeable speed of self-pressurization of the present invention is as shown in Figs. 1-3.
The prefabricated pile device of fast permeable speed can be prefabricated tubulose or rectangular, length and conventional prefabricated tubular pile or square pile one
It causes, it can be with conventional prefabricated tubular pile or square pile matching operation.The prefabricated pile device of fast permeable speed is by top plate 1, bottom plate 3, ribbing steel pipe
4, the part such as cavity and reinforced concrete permeable structure 8 forms, and 3 D stereo porous material 6, armored concrete are filled in cavity
Permeable structure 8 sets 2 liner geotextiles loaded filter 7 of drainage mouth, is equipped with ribbed stiffener 5 in ribbing steel pipe 4.
The prefabricated pile device of fast permeable speed is arranged duct in top plate 1 and connect with roof drainage system, as shown in Figure 7.Draining
Overflow device 12 can be arranged according to pipeline bearing capacity in system, and gap is connect with drainage pipeline 10, lower logical municipal drainage pipe network,
The difference of gap absolute altitude and level of ground water absolute altitude, forms maximum head pressure, thus determines pipeline pressure-bearing load.
Two preserved pipelines, a water inlet, another exhaust and draining is arranged in the top plate 1 of fast permeable speed prefabricated pile device,
Two root canal roads can form in maintenance phase and wash away cleaning system.
A kind of construction method of the prefabricated pile device of the fast permeable speed of self-pressurization of the present invention is as follows:
The normal prefabricated pile pressing pile construction of step 1).
The prefabricated pile device pile connection construction of the fast permeable speed of step 2) self-pressurization.
The prefabricated pile device pressing pile construction of the fast permeable speed of step 3) self-pressurization.
The prefabricated pile device cutting piles of the fast permeable speed of step 4) self-pressurization.
Top plate is coupled after the prefabricated pile device of the fast permeable speed of step 5) self-pressurization cuts stake.
The prefabricated pile device top plate pipe link of the fast permeable speed of step 6) self-pressurization.
The prefabricated pile device top plate pipeline of the fast permeable speed of step 7) self-pressurization and roof drainage system connection, overflow device and
Valve installation.
Specific step is as follows:
1) preferentially more than the ordinary water level of underground or the prefabricated pile device of fast permeable speed is arranged in soil layer range that permeability is strong,
The prefabricated pile device of fast permeable speed can be set in non-pressure water or weak pressure-bearing water area;
2) the prefabricated pile device form of construction work of fast permeable speed is identical as the conventional construction method of prefabricated pile, that is, can use static pressure
Method or hammer-impact construction;Hammering method is that soil is overcome so that stake is sunk to predetermined supporting course the resistance of stake using the impact of pile monkey;Static pressure
Method is to provide counter-force by the mechanism of pile of static pile press with the counterweight in pile press machine self weight and rack to be pressed into prefabricated pile
Process for sinking in soil.
3) the prefabricated pile device of fast permeable speed can be by bottom plate using welding or cementing method, with conventional prefabricated pile top
Ring flange or pre-embedded steel slab be coupled;As shown in Figure 5;
4) long according to construction stake, the prefabricated pile device sectional of fast permeable speed takes welding or cementing method to carry out pile extension
Construction, but must guarantee the perforation of adjacent fast permeable speed prefabricated pile device reserving hole channel;As shown in Figure 6;Construction elevation is reached, it can be with
Stake is cut, the method that the ribbing power transmission steel pipe for cutting stake position can take welding with top plate is coupled;Cut 9 structure of stake top plate welded seam such as
Shown in Fig. 4.
7) the fast prefabricated pile device of permeable speed and the bind mode of pile foundation support table are identical as conventional prefabricated pile;It is conventional prefabricated
The connecting method of stake and pile foundation support table: generally prefabricated pile is all hollow, pours certain altitude concrete in stake in-core and is inserted into
Corresponding reinforcing bar, it is desirable that reinforcing bar anchors into cushion cap certain size, can also weld anchor bar in prefabricated pile end plate, and anchor into one scale of cushion cap
It is very little;
8) the top plate reserving hole channel of fast permeable speed prefabricated pile device is connected by pipeline with roof drainage system, and pipeline passes through
Pile foundation support table;
9) top plate of fast permeable speed prefabricated pile device sets two root canal roads, a root canal road and roof drainage system connection, draining
Overflow device is arranged in system, and spillway hole is connected with city planting ductwork;Another root canal road can be vented, drainage hole, be arranged valve 11, and two
Root canal road can form in maintenance phase and wash away cleaning system.
Rainwater is entered the cavity of fast permeable speed prefabricated pile device by roof drainage system, forms pressure head according to rainfall,
Accelerate the water body in cavity, passes through reinforced concrete permeable structure soil body penetration around.
The new device and new method quickly seeped down the invention belongs to urban architecture rainwater, in the process of construction of urbanization
In, the construction in sponge city is extremely urgent.The present invention effectively uses the theory in " sponge city ", enables city as sea
It is continuous the same, there is good " elasticity " in terms of adapting to environmental change and reply, water suction, water storage, infiltration when raining
The water stored is discharged and is used when needing by water, water purification.The present invention follows the principles such as Ecology Precedence, by natural way with
Artificial measures combine, and under the premise of ensuring municipal drainage prevention waterlogging safety, realize rainwater in urban area to the maximum extent
Accumulate, permeate and purify, promotes the utilization and ecological environmental protection of rainwater resource.The present invention plan as a whole natural precipitation, surface water and
The systematicness of underground water coordinates each links of water circulation uses such as water supply, draining, and considers its complexity and chronicity.The present invention
It is that can accelerate the lower infiltration of rainwater in the quick lower device seeped of below ground suitable for building roofing draining, alleviate heavy rain pair
The pressure of urban waterlogging.Of the invention sets suitable for house, public building and municipal engineering construction.
Present invention combination construction of structures foundation construction process is arranged water-permeable prefabricated pile device in underground, utilizes roofing
The high water head of water level, accelerates the quick lower row of roof ponding, and enters to be seeped into the soil body to greatest extent.The fast permeable speed of self-pressurization
Prefabricated pile device and method are efficiently feasible, can not only guarantee the load-carrying properties of foundation pile, but also can form natural and artificial draining
Channel meets the sponge urban construction demand of water suction, water storage, infiltration when raining, has a extensive future.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention.It is all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.