CN210421109U - Foundation pit supporting device - Google Patents

Abstract

The utility model relates to a foundation pit supporting device, including guan liang and fender pile, fender pile upper portion is equipped with guan liang, and guan liang upper portion is equipped with the constructional column, and constructional column upper portion is equipped with the capping beam. Construction of strutting arrangement later stage major structure pipeline, it is less to break out the engineering volume, chiseling the degree of difficulty and reducing, show and reduce whole engineering cost, shorten construction period, practice thrift the land use, the time limit is short, solved the problem that the foundation ditch received place and all ring edge borders restriction effectively with lower cost, avoid surface water to flow into in the foundation ditch, effectively get rid of groundwater and subsurface infiltration, reduce the lateral pressure of soil, guarantee that the foundation ditch is stable, the foundation ditch warp for a short time, strut effectual, the structure safe and reliable.

Description

Foundation pit supporting device

Technical Field

The utility model relates to a building frock field, it is specific, the utility model relates to a foundation ditch supporting device.

Background

Along with the rapid development of the building industry, the land resources are increasingly tense, the surrounding environment of the building foundation pit is very complex and is limited by the site and the surrounding environment, the foundation pit basically has no slope-releasing condition, or the construction site of the top of the foundation pit is narrow, only reinforced concrete cast-in-place piles can be used for supporting, the manufacturing cost of the enclosure piles is obviously increased along with the increase of the depth of the foundation pit, and the supporting mode needs to break the reinforced concrete crown beams and partial cast-in-place piles during the construction of the main building pipeline, thereby greatly increasing the pipeline construction difficulty, prolonging the construction period, increasing the construction cost, generating more building wastes and being not beneficial to environmental protection.

Disclosure of Invention

The utility model aims at the problems that in the prior art, when the main building pipeline is constructed, the reinforced concrete crown beam and part of cast-in-place piles need to be broken, the pipeline construction difficulty is greatly increased, the construction period is prolonged, the construction cost is increased, more construction waste is generated, and the environmental protection is not facilitated; put the slope form and receive building and pipeline on every side and can't implement, and subside and the unfavorable technical problem of slope to the nearer building of foundation ditch, the utility model provides a foundation ditch supporting device has overcome the limited adverse effect in place, and the construction convenience of follow-up pipeline has economy, practicality, simple and convenient advantage, has extensive suitability in the foundation ditch support field.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a pair of foundation pit supporting device, including guan liang and fender pile, fender pile upper portion is equipped with guan liang, and guan liang upper portion is equipped with the constructional column, and constructional column upper portion is equipped with the capping beam.

The utility model discloses in, be equipped with the brick between the constructional column and build the wall.

The utility model discloses in, brick masonry wall bottom is equipped with the outlet.

The utility model discloses in, fender pile parallel is equipped with two sets ofly, is the foundation ditch between two sets of fender piles, and one side that fender pile and guan liang are close to the foundation ditch is equipped with the hanging net and sprays concrete layer.

The utility model discloses in, the diameter or the length of side of fender pile equals with guan liang width, and the diameter or the length of side of constructional column are less than guanliang width.

The utility model discloses in, the diameter or the length of side of constructional column equals coping roof beam width.

The utility model discloses in, the foundation ditch was kept away from to constructional column and crown beam one side aligns, and one side that the foundation ditch was kept away from to constructional column and capping beam is equipped with the backfill clay water barrier outward and backfills the medium coarse sand layer.

The utility model discloses in, backfill the clay water barrier and be located and backfill middlings sand layer upper portion.

The utility model discloses in, the coarse sand layer lower part plane is less than the top plane of crown beam in backfilling.

The utility model discloses in, the constructional column of foundation ditch both sides is asymmetric arrangement, and one side that the foundation ditch was kept away from to capping beam and constructional column is equipped with the catch basin.

The utility model discloses in, the bottom plane of fender pile is less than the foundation ditch baseplane.

The utility model discloses a following beneficial effect has:

the utility model discloses device hat beam top mark height is less than the ground take the altitude, and later stage major structure pipeline construction breaks away the engineering volume less, chisels out the degree of difficulty and reduces, and fender pile cantilever part length subtracts the weak point back, and fender pile parameter diminishes, can show and reduce whole engineering cost, shortens construction period, practices thrift the land used, and the time limit for a project is short.

The supporting device of the utility model effectively solves the problem that the foundation pit is limited by the field and the surrounding environment with lower cost, and effectively saves the land used on the upper part of the foundation pit; creating conditions for arranging a catch basin at the top of the foundation pit and preventing surface water from flowing into the foundation pit; a complete drainage system is formed by the coarse sand permeable layer and the water drainage holes behind the brick wall, so that underground water and subsurface seepage water are effectively discharged, the lateral pressure of soil is reduced, and the stability of a foundation pit is ensured; the foundation pit has small deformation, good supporting effect and safe and reliable structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the supporting three-dimensional structure of the utility model

Fig. 2 is a schematic view of the cross section of the supporting device of the present invention.

Fig. 3 is a schematic elevation view of the supporting device of the present invention.

In the figure, 1-capping beam, 2-constructional column, 3-crown beam, 4-fender pile, 5-hanging net injection concrete layer, 6-backfilling clay water-resisting layer, 7-backfilling medium coarse sand layer, 8-foundation pit bottom, 9-intercepting ditch, 10-brick masonry wall and 11-water drainage hole.

Detailed Description

The following description of the present invention will be made in further detail with reference to the accompanying drawings 1 to 3 and examples, but the present invention is not limited to the following examples.

In the present invention, for convenience and description, the description of the relative position relationship of the components in an excavation supporting device is described according to the layout pattern of fig. 1, as follows: the positional relationship of up, down, left, right, etc. is determined according to the layout direction of fig. 1.

The utility model provides a pair of foundation pit supporting device, including guan liang 3 and fender pile 4, 4 upper portions of fender pile are equipped with guan liang 3, and 3 upper portions of guan liang are equipped with constructional column 2, and 2 upper portions of constructional column are equipped with capping beam 1.

The utility model discloses in, be equipped with brick masonry wall 10 between constructional column 2.

The utility model discloses in, brick masonry wall 10 bottom is equipped with outlet 11.

The utility model discloses in, fender pile 4 parallel is equipped with two sets ofly, is the foundation ditch between two sets of fender piles 4, and fender pile 4 and the one side that guan liang 3 is close to the foundation ditch are equipped with the hanging net and spray concrete layer 5.

The utility model discloses in, the diameter or the length of side of fender post 4 equal with the 3 width of hat roof beam, and the diameter or the length of side of constructional column 2 are less than the 3 width of hat roof beam.

In the utility model, the diameter or the side length of the constructional column 2 is equal to the width of the capping beam 1.

The utility model discloses in, one side that foundation ditch was kept away from to constructional column 2 and crown beam 3 aligns, and one side that foundation ditch was kept away from with capping beam 1 to constructional column 2 is equipped with the backfill clay water barrier outward and backfills the medium coarse sand layer.

The utility model discloses in, backfill clay water barrier 6 is located 7 upper portions on the coarse sand layer in backfilling.

The utility model discloses in, 7 lower part planes on gross sand layer are less than the 3 planes on the crown beam in backfilling.

The utility model discloses in, the constructional column 2 of foundation ditch both sides is asymmetric arrangement, and one side that foundation ditch 1 was kept away from to capping beam 1 and constructional column 2 is equipped with intercepting ditch 9.

The utility model discloses in, the bottom plane of fender pile 4 is less than 8 planes at the bottom of the foundation pit.

When being suitable for the utility model discloses excavation supporting device, fender pile 4, crown beam 3, constructional column 2, capping beam 1 all adopt the pouring to form. Firstly, a water intercepting ditch 9 is built at a certain position of the earth surface outside a foundation pit, a foundation pit supporting device consists of an upper constructional column 2, a brick building wall 10 and a lower enclosing pile 4, and the upper constructional column 2 is embedded into the lower enclosing pile 4 to form a complete supporting system. The interval between the upper constructional columns 2 is 2.5-3.0 m, the section size of the constructional columns 2 is 250x 250-250 x370mm, the wall thickness between the constructional columns 2 is 240-360 mm, the constructional columns 2 are specifically determined according to the height and the geology of the constructional columns 2, concrete is poured by the aid of the constructional columns 2, reinforcing steel bars are arranged, the reinforcing steel bars extend into the top beam 3 for 0.5m, drainage water holes 11 are formed in the bottom of the brick built wall 10, medium coarse sand is used for manufacturing a coarse sand layer 7 in backfilling after the brick built wall 10 to form a water seepage channel, the upper portion of the coarse sand layer 7 in backfilling is 0.5m away from the ground surface, clay is used for backfilling to form a backfilled clay water-proof layer 6, a capping beam 1 is arranged on the top of the brick built wall 10, concrete is used. The foundation pit lower part comprises a plurality of fender posts 4 arranged according to a certain interval, the depth of 8 parts of the fender posts 4 embedded into the foundation pit bottom is determined according to the restraint condition of the fender posts 4, the depth of the foundation pit and the geological condition, soil nails are anchored into the outer sides of the fender posts 4 and are connected with a reinforcing mesh, and finally concrete is sprayed to form a hanging mesh and spray a concrete layer 5 to stabilize the soil between the fender posts 4.

The utility model discloses supporting device can effectively reduce the bored concrete pile height, reduces later stage main part building pipeline construction and chisels the degree of difficulty and abolishes the engineering volume for the construction progress, supporting device can fully guarantee foundation ditch safety, and it is effectual to strut, and the foundation ditch warp for a short time, and engineering cost is low.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. The utility model provides a foundation pit supporting device, includes crown beam and fender pile, its characterized in that: the upper part of the fender pile is provided with a crown beam, the upper part of the crown beam is provided with a constructional column, and the upper part of the constructional column is provided with a capping beam.

2. An excavation supporting means as claimed in claim 1, wherein a masonry wall is provided between the constructional columns.

3. An excavation supporting means as claimed in claim 2, wherein the brickwork wall is provided with weep holes at its base.

4. A foundation pit supporting device according to claim 1, wherein the fender piles are arranged in two groups in parallel, a foundation pit is arranged between the two groups of fender piles, and a net-hanging sprayed concrete layer is arranged on one side of the fender piles and the crown beams close to the foundation pit.

5. A foundation pit supporting apparatus as claimed in claim 1 wherein the diameter or side length of the enclosure piles is equal to the width of the crown beams and the diameter or side length of the construction columns is less than the width of the crown beams.

6. An excavation supporting means as claimed in claim 5, wherein the constructional column has a diameter or length of side equal to the width of the capping beam.

7. A supporting device for a foundation pit as claimed in claim 4, wherein the columns and beams are aligned on the side remote from the pit, and the columns and beams are externally provided with a backfill clay water barrier and a backfill medium grit layer on the side remote from the pit.

8. A supporting device for a foundation pit as claimed in claim 7, wherein the backfill clay water barrier is located above the course sand in the backfill.

9. An excavation supporting means as claimed in claim 7, wherein the lower plane of the coarse sand layer in the backfill is below the upper plane of the crown beam.

10. An excavation supporting arrangement as claimed in claim 4, wherein the columns are arranged asymmetrically on either side of the excavation, and the capping beam and the column are provided with cut-off channels on the side remote from the excavation.

Images