CN201588206U

CN201588206U - Water discharge pile pipe

Info

Publication number: CN201588206U
Application number: CN2009203145929U
Authority: CN
Inventors: 任再永
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-12
Filing date: 2009-11-12
Publication date: 2010-09-22
Anticipated expiration: 2019-11-12

Abstract

A water discharge pile pipe belongs to the technical field of water-containing soft soil foundation water discharge and fixed structural member. The existing water-containing soft soil foundation water discharge generally adopts a vacuum drainage board, which can only enable the foundation soil layer to achieve certain consolidation strength, the primary construction can not satisfy the project of high requirement of the bearing ability for the foundation. The utility model is characterized by comprising an integral pipe body with holes, a filter membrane is clad outside the pipe body, the utility model has advantages that the pipe body has good rigidity and can accurately be inserted into the preset depth, the material using is accurate, the construction difficulty is reduced, the filler can be filled in the pile pipe according to actual construction requirements, the utility model is propitious to the water discharge and can be taken as a casing tube pile for secondary reinforce foundation after the water, thereby saving the secondary piling construction cost, shortening the construction period and simplifying the construction process, the utility model is suitable for being applied to the project of high foundation bearing ability requirement.

Description

A kind of drainage pile pipe

[technical field]

The utility model relates to a kind of drainage pile pipe, belongs to moisture soft foundation draining, fixed member field.

[background technology]

Speedway, railway, airport, power plant, stockyard, harbour, enclose and cultivate, usually run into soft foundation in the engineering such as Wastewater Treatment Plant, soft, characteristics such as water content is high, permeability is little, flow is low, stream earth matter, soil particle is little, viscosity is big, bearing capacity is low that its engineering foundation soil property has, thereby need the moisture in the discharge ground to make ground consolidation, just can carry out follow-up construction.The vacuum drainage plate is generally adopted in the draining of existing moisture soft foundation.In the practice of construction process, the sheet band drain that complex root is had rhone and be coated with filter membranous layer vertically inserts soft foundation, horizontal vacuum line is set again, and the thick sandy soil layer of lay 30-50 centimetre covers soft foundation, band drain and the horizontal vacuum tube that needs draining fully above band drain; Moisture weak soil below the lay diaphragm seal makes on the sandy soil layer forms sealed space then; Start the aspirator that is connected on the vacuum tube at last, make the outer pressure of band drain greater than the pressure in the band drain, utilize the pressure of sandy soil layer and vacuum suction apparatus to make the moisture in the soft foundation enter band drain and discharge soft foundation with the air that is sucked by the passage that intergranular slit of sandy soil and vacuum line form.(consolidation strength generally can reach 6-8 ton/m2) because band drain can only make foundation soil reach the effect of the discharging consolidation of certain intensity, when the object of construction production requirement for bearing capacity required to ground is higher (consolidation strength requires to reach more than 8-10 ton/m2), must on the preliminary fixed foundation soil that forms after the soft foundation draining, carry out the construction second time, setting various pile tubes further carries out fixed, or adopt other construction technology to carry out consolidation process once more, waste of material, construction period is long, the construction technology complexity, twice construction cost height, band drain can only be discarded after finishing drainage.In addition, if when adopting band drain and suction pump to be used to carry out simple basic construction such as precipitation drainage, the drainage effect that draws water is very limited, thereby application facet limits to some extent.

[utility model content]

The technical assignment of the technical problems to be solved in the utility model and proposition is the defective that overcomes prior art, a kind of soft foundation draining of inserting is provided, after ground is preliminary fixed, need not removes and can use the drainage pile pipe of irrigation sleeve pile tube as further consolidation process.For this reason, the utility model adopts following technical scheme:

A kind of drainage pile pipe is characterized in that comprising integral type body with holes that described body is coated with filter membrane.The perforated pipe wall energy is evenly carried filter membrane, is reduced in the possibility of compression failure filter membrane in the ground; The drainage channel that water in the soft foundation forms by filter membrane, hole under the effect of pressure enters in the body to be accumulated, and then utilize facilities such as drainage pump or vacuum line to discharge ground, even if adopt the precipitation drainage to utilize the suction pump draining of drawing water, also efficiently draining can extensively adapt to multiple drainage consolidation construction method.In addition, also can in body, fill water permeability fillers such as sand, gravel, rubble, utilize the space of filler to form drainage channel, help vacuum draw to discharge the interior water of body, accelerate drainage speed; When object of construction production is higher to the required requirement for bearing capacity of ground, the bigger filler of fill concrete isodensity in pipe again after draining finishes, these fillers and stake pipe promptly can be used as the case pile of second consolidation ground effect, one thing dual-purpose, save the construction cost of pile after driving, reduction of erection time, the bearing capacity and the stability of ground have significantly been strengthened.Filter membrane adopts nonwoven to be coated on the netted pipe usually, and the bonding or hot melt adhesion of available chemical glue is fixed, and makes filter membrane not break away from body and forms overall structure, and particularly the stake pipe end that inserts soft foundation need be closed, and prevents that earth from entering in the pipe.Body can directly adopt the direct punching manufacturing of the tubing of finished product plastic pipe or other materials, also can utilize sheet material with holes to roll and form.

For the improving and replenishing of technique scheme, can increase following technical characterictic or its combination:

Described body two ends are provided with end cap, and described end cap comprises first end cap that has the tip and be connected with the netted seal of tube and has second end cap that is connected tube head.When the stake pipe was squeezed into ground, the resistance that inserts ground can be reduced in the tip of first end cap, and can prevent that mud from entering in the pipe, and the connection tube head on second end cap is convenient to be connected to form vacuum with the netted pipe of sealing, perhaps opens second end cap and fills filler.

Described filter membrane external surface is provided with scale.Can read the stake pipe intuitively and insert the ground degree of depth, the stake pipe of Len req from fixed length blocked, materials are accurate.

In the described body or filter membrane be provided with plain conductor.After can switching on, utilize electronic measuring instrument to measure the actual grade that stake pipe inserts ground, be convenient to monitor and the stake pipe of Len req from fixed length blocked, materials are accurate.

The utility model utilizes the external coating filter membrane of ported sub, has certain rigid, can vertically insert predetermined depth, materials are accurate, once construction gets final product, difficulty is low, can fill filler according to the practice of construction needs in the stake pipe, both help draining, again can be after draining directly as the case pile of second consolidation ground effect, one thing dual-purpose, save the construction cost of pile after driving, be convenient to monitor the actual grade that inserts ground, reduction of erection time, simplify construction technology, particularly be fit to be applied in the high object of construction production of ground requirement for bearing capacity.

[description of drawings]

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the another kind of embodiment of the utility model second end cap;

Fig. 3 is the another kind of embodiment of the utility model first end cap.

Among the figure: 1, body, 2, the hole, 3, filter membrane, 4, first end cap, 5, second end cap.

[specific embodiment]

Below in conjunction with specification drawings and specific embodiments substantive distinguishing features of the present utility model is further described.

As shown in Figure 1, a kind of drainage pile pipe comprises with holes 2 integral type body 1, and body is coated with filter membrane 3.The body two ends are provided with end cap, and end cap comprises first end cap 4 that has the tip and be connected with the netted seal of tube and has second end cap 5 that is connected tube head 51.Also can local or whole gluing being connected and fixed between nonwoven filter membrane and the body, prevent that displacement of nonwoven filter membrane or filter membrane from having a common boundary the place and throwing off.

For the ease of accurately calculating the effective material length of stake, the filter membrane external surface is provided with scale, also can be provided with plain conductor in netted pipe or on the filter membrane, utilizes the electronic measuring instrument value to calculate after the energising, and with the actual insertion depth of monitoring stake pipe, materials are accurate.

Fig. 2,3 is the another kind of embodiment of first end cap, second end cap, and both are embedded to be placed in the netted pipe that filter membrane coats.Also can be with the going up of this two kinds of structures, first end cap and end cap shown in Figure 1, mix and match use.

When practice of construction was used, the utility model also can be applicable to the various face of land such as the effluent discharge, top layer mud discharging consolidation, tunnel lateral direction gutter of the ponding discharging of refuse landfill bottom, the draining of speedway median strip, soft basic discharging consolidation transverse drainage passage, municipal underground pipeline drainage transverse drainage system.Surface pond permeation filtration rete is discharged ground through plastic draining chimney filter vacuum draw, reaches the effect of filtering draining.When adopting plastic materials such as PP, PET to make when the utility model, type draining chimney filters such as the wire spring chimney filter that uses with routine, plastics french drain, rubble french drain, drain plate are compared, that this product has is corrosion-resistant, ageing-resistant, compressive strength big, cross advantages such as the penetrating percent opening of water is big, cost is low, rational in infrastructure, has superiority relatively on structure, performance and the cost of product.

A kind of drainage pile pipe shown in the above accompanying drawing 1-3 is a specific embodiment of the utility model, substantive distinguishing features of the present utility model and progress have been embodied, use needs according to reality, it is carried out the modification of aspects such as material, specification and shape, all in category of the present utility model, be not limited to the content of enumerating of this manual, seldom give unnecessary details at this.

Claims

1. drainage pile pipe is characterized in that comprising the integral type body (1) of (2) with holes, and described body is coated with filter membrane (3).

2. a kind of drainage pile pipe according to claim 1 is characterized in that described body two ends are provided with end cap, and described end cap comprises first end cap (4) that has the tip and be connected with the netted seal of tube and has second end cap (5) that is connected tube head (51).

3. a kind of drainage pile pipe according to claim 1 and 2 is characterized in that described filter membrane external surface is provided with scale.

4. a kind of drainage pile pipe according to claim 1 and 2 is characterized in that in the described body or filter membrane is provided with plain conductor.