CN201857608U

CN201857608U - Synthetic pile

Info

Publication number: CN201857608U
Application number: CN2010205686857U
Authority: CN
Inventors: 王常青; 苏志强; 邹延辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-20
Filing date: 2010-10-20
Publication date: 2011-06-08
Anticipated expiration: 2020-10-20

Abstract

The utility model relates to a synthetic pile. A static pressure pile is adopted in the existing building field, and needs to be pressed into the ground, so that a concrete column with smooth surface is adopted. In the compaction process of pressing the concrete column into soil by adopting great pressure, micro-crackle is easy to produce due to repeated punching, and the construction quality and the service life of a building can be influenced. The synthetic pile comprises a framework of steel reinforcement (1), wherein concrete (2) is cladded around the framework of steel reinforcement to jointly form a tubular pile body (3) with annular cross section, the outer side of the tubular pile body is provided with a concave rib or a convex rib, and a pile surface layer (5) formed by pouring cement paste, cement mortar or concrete is arranged between the tubular pile body and a pile foundation hole (4) arranged in the synthetic pile. The synthetic pile is used in a pile foundation of the building.

Description

Synthetic stake

Technical field:

The utility model relates to a kind of building field house foundation that is used for to be built, with the concrete composite pile with ribbing that uses in pre-coremaking pipe and the construction technology that cast-in-place mode combines.

Background technology:

Existing foundation pile has following several form: driven pile (prefabricated), dried pore-forming cast-in-place concrete pile, water bore stake (positive and negative circulation), drilled pressure filling pile, Superfluid state concrete castinplace pile, static pressed pile.Wherein:

1. squeeze into preformed pile since in construction vibrations and noise make its application be subjected to certain limitation greatly and to the off-load phenomenon that pile body has certain damage and constructed.The building constructor that has does not get to desired depth and just stops construction, meets unbalanced load and causes askew building.

2. though dried pore-forming cast-in-place concrete pile cost is low and the construction is simple, to be subjected to geological conditions limitation boundary of works area simultaneously smaller but bearing capacity is not high.

3. water bores stake because the technology of construction causes its bearing capacity under the preceding topic of identical amount of concrete low, and construction speed is slow, and construction pin rate is lower

Though drilled pressure filling pile solved multiple complex geological condition still can smooth construction and improved the bearing capacity of equal volume of concrete stake, on the intensity of pile concrete, be subjected to limitation.Improper as having slightly in the launch process of aggregate, the aggregate of pile body bottom is easy to not reach code requirement, so that different pile body strength differences are bigger, has reduced the reliability of stake, causes askew building.Strengthen the pile body requirement simultaneously, the restriction of strength grade of concrete has caused certain waste.

5., in construction,, reduced the reliability of stake in operating process because constructor's self reason and construction equipment occur stopping up forming broken pile easily though the Superfluid state concrete castinplace pile has solved some problems of bearing capacity and concrete strength.The dispensing of reinforcing cage simultaneously acquires a certain degree of difficulty, and has only fewer company's construction to put in place, causes building body hidden danger.

6. Static Pressure Precast Piles has solved the concrete strength of pile body and the vibration problems in the construction, but the stake that is pressed under ground portion in construction is easily to the softer weak direction skew in stratum, form the axial compression effect that overground part and under ground portion can not reach anticipation, the high tower ratio is higher, for building has been buried certain hidden danger, because equipment volume is excessive slowly mobile, be easy to generate the dead angle during construction simultaneously.

Summary of the invention:

The purpose of this utility model provides a kind of synthetic stake, makes the pile foundation of building of pile foundation more firm, the application life of having improved structural quality and building.

Above-mentioned purpose realizes by following technical scheme:

Synthetic stake, its composition comprises: cage of reinforcement, coat concrete around the described cage of reinforcement and form the pile tube body of cross section jointly, the stake top layer that has cement paste or cement mortar or concreting to form between the pile foundation hole that stake of described pile tube body and synthetic stake are installed for annular.

Described synthetic stake, the external side of described pile tube has indent rib or outer fin, described indent rib is corrugated indent rib or strip indent rib or point-like indent rib or helical form indent rib, with described outer fin be the outer fin of corrugated or the outer fin of strip or outer fin of point-like or the outer fin of helical form.

Described synthetic stake, the termination of described pile tube body or described cage of reinforcement connecting portion has the connection birdsmouth, filling concrete slurry or cement mortar or concrete in the described hollow section pile body, described cage of reinforcement comprises annular muscle and the pressure-bearing muscle along annular spread of fixedlying connected with described annular muscle.

Beneficial effect:

1. pile tube of the present utility model is compared with cast-in-situ concrete through prefabricated and Ageing Treatment, underlying strength height in the construction period.As skeleton, not only integral construction speed is fast for the building body of formation with stable high strength pile body, and load part fully constructing after the health Ageing Treatment, and whole prognosis intensity is good, is easy to reach designing requirement.

Simultaneously, be easy to prior Monitoring and Controlling owing to enter the prefabricated units quality on basis, strong solution the building site use inferior materials and turn out substandard goods, underlying strength is not enough, the problem enumerated in not enough or the like the above-mentioned background technology of the piling degree of depth, can effectively avoid in order to lower operating expenses and to accelerate the jerry-built project of building cycle.

2. the utility model carries out infrastructure by prefabricated tubular pile, simple to operate, be easy to the construction, the bearing capacity of pile foundation is big, safe and reliable, good economical benefit.

3. pile body integrity of the present utility model is good, need not rely on the external force operation of the piling technology of strong noise pile tube can be laid and put in place, and concrete structure, the load performance of stake self can not be damaged.

4. pile tube of the present utility model has external fin, the bonding in top layer and pile foundation hole well, bond stress is strong, be built on the rock, good engineering quality, long service life.

5. the utility model can not only be used under common geological conditions, and at drift sand, cobble, groundwater table height, easily collapse and use under the complex conditions in hole.While bearing capacity height, concrete strength of pile is good, reliable in quality.

6. the preformed pile with ribbing taked of the utility model has been strengthened combining of pre-erection and cementitious material greatly, and cementitious material also makes pre-erection improve globality simultaneously.

7. the utility model can judge intuitively that " integrality " " reliability " of stake makes simple and clearization of work progress; The easier controllability that in construction, solves the underground construction quality.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model band indent rib, the stake of crescent moon ribbed pipe pile body.

Accompanying drawing 2 is structural representations of the outer fin of the utility model band, the stake of crescent moon ribbed pipe pile body.

Accompanying drawing 3 is not structural representations of rifled pipe pile body stake of the utility model.

Accompanying drawing 4 is strip schematic diagrames of rib of the present utility model.

Accompanying drawing 5 is point-like schematic diagrames of rib of the present utility model.

Accompanying drawing 6 is corrugated or helical form schematic diagrames of rib of the present utility model.

The specific embodiment:

Embodiment 1:

A kind of synthetic stake, its composition comprises: cage of reinforcement 1, coat the concrete 2 common pile tube bodies 3 that form cross section for annular around the described cage of reinforcement, the external side of described pile tube has indent rib or outer fin, the stake top layer 5 that has cement paste or cement mortar or concreting to form between the pile foundation hole 4 that stake of described pile tube body and synthetic stake are installed.

Embodiment 2:

Described synthetic stake, the external side of described pile tube has indent rib 6 or outer fin 7, described indent rib is corrugated indent rib 63 or helical form indent rib or strip indent rib 61 or point-like indent rib 62, with described outer fin 7 be the outer fin of corrugated or the outer fin of strip or outer fin of point-like or the outer fin of helical form.

Embodiment 3:

If make this long product of length, when accepting, the termination of described pile tube body or described cage of reinforcement connecting portion can be made and be connected birdsmouth 8, birdsmouth can be formed by the cement paste of filling or cement mortar or concrete, also can be formed or be made up of the platform shape that cage of reinforcement forms by the stake top layer, described cage of reinforcement comprises annular muscle 9 and the pressure-bearing muscle 10 along annular spread of fixedlying connected with described annular muscle.

Claims

1. synthetic stake, its composition comprises: cage of reinforcement, it is characterized in that: coat concrete around the described cage of reinforcement and form the pile tube body of cross section jointly, the stake top layer that has cement paste or cement mortar or concreting to form between the pile foundation hole that stake of described pile tube body and synthetic stake are installed for annular.

2. synthetic stake according to claim 1, it is characterized in that: the external side of described pile tube has indent rib or outer fin, described indent rib is corrugated indent rib or strip indent rib or point-like indent rib or helical form indent rib, with described outer fin be the outer fin of corrugated or the outer fin of strip or outer fin of point-like or the outer fin of helical form.

3. synthetic stake according to claim 1 and 2, it is characterized in that: the termination of described pile tube body or described cage of reinforcement connecting portion has the connection birdsmouth, filling concrete slurry or cement mortar or concrete in the described hollow section pile body, described cage of reinforcement comprises annular muscle and the pressure-bearing muscle along annular spread of fixedlying connected with described annular muscle.