阅读说明：本技术 一种软土地基室外台阶结构及其施工方法 (Soft soil foundation outdoor step structure and construction method thereof ) 是由 虞靖彬 张恒 胡文兴 于 2019-08-22 设计创作，主要内容包括：本发明公开了一种软土地基室外台阶结构及其施工方法,属于建筑领域,具有减少软土地基室外台阶开裂的优点,包括地基桩、建筑基体、台阶体,多个地基桩插入泥土内,所述建筑基体设置在地基桩上,所述台阶体设置在建筑基体侧面,台阶体下方设有基柱、支撑柱,所述基柱倾斜设置,两个所述基柱一端分别抵触在靠近台阶体的两个地基柱侧面,两个所述基柱另一端相互抵触,若干个所述支撑柱一端抵触基柱靠近建筑基体的侧面上,所述支撑柱另一端设置在建筑基体上,所述支撑柱上设有箱台阶体延伸的钢筋笼,所述钢筋笼内浇注有混凝土层。(The invention discloses a soft soil foundation outdoor step structure and a construction method thereof, belongs to the field of buildings, and has the advantage of reducing cracking of soft soil foundation outdoor steps.)

1. The utility model provides an outdoor stair structure of soft soil foundation, includes foundation pile (1), building base member (2), the step body (3), in a plurality of foundation piles (1) inserted earth, building base member (2) set up on foundation pile (1), the step body (3) set up in building base member (2) side, characterized by: step body (3) below is equipped with foundation column (4), support column (5), foundation column (4) slope sets up, two foundation column (4) one end is contradicted respectively and is being close to two foundation column (4) sides of step body (3), two foundation column (4) other end is contradicted each other, a plurality of support column (5) one end is contradicted on foundation column (4) is close to the side of building base member (2), support column (5) other end sets up on building base member (2), be equipped with steel reinforcement cage (6) that case step body (3) extended on support column (5), the pouring has concrete layer (7) in steel reinforcement cage (6).

2. The outdoor stair structure of soft soil foundation of claim 1, wherein: the side surface of the foundation pile (1) is provided with a limiting hole (41), and the foundation column (4) is supported in the limiting hole (41).

3. The outdoor stair structure of soft soil foundation of claim 1, wherein: concrete layer (7) pouring is steel reinforcement cage (6) upper portion, steel reinforcement cage (6) lower part is filled earth.

4. The outdoor stair structure of soft soil foundation of claim 1, wherein: the reinforcement cage (6) extends into the step body (3) and the building base body (2).

5. A construction method of soft soil foundation outdoor steps is characterized in that: the method comprises the following steps:

the method comprises the following steps: excavating earth;

step two: processing earthwork;

step three: arranging foundation piles (1);

step four: backfilling earthwork: backfilling soil in the earthwork to be smooth;

step four, step one: filling soil to the height of the limiting hole (41), abutting one end of each foundation column (4) against the position of the limiting hole (41), and abutting the other ends of the two foundation columns (4) against each other;

step four, step two: continuously backfilling the soil until the soil buries at least half of the foundation pillar (4), so as to ensure the stability of the foundation pillar (4);

step four, step three: then vertically inserting the support column (5) into soil to be abutted against the foundation column (4), and then continuously backfilling the soil;

step four, step four: soil is backfilled to ensure that the support column (5) is stable, then the reinforcement cage (6) is placed, the support column (5) penetrates through the reinforcement cage (6), and then soil is backfilled continuously to submerge a part of the reinforcement cage (6);

step four, step five: then concrete is poured to the position of the reinforcement cage (6) until the position of the reinforcement cage is level to the construction surface, so that a concrete layer (7) is formed;

step five: pouring the building matrix (2) at the position after backfilling;

step six: and pouring the step body (3) on the concrete layer.

6. The construction method of the outdoor step of the soft soil foundation according to claim 5, characterized in that:

step four, step one: the two foundation columns (4) are preliminarily fixed through a wooden frame;

step four, step three: the support columns (5) are preliminarily fixed through a wood frame.

7. The construction method of the outdoor step of the soft soil foundation according to claim 5, characterized in that:

step four, step four: the reinforcement cage (6) is bound on the support column (5) through iron wires.

8. The construction method of the outdoor step of the soft soil foundation according to claim 5, characterized in that:

step five: the steel reinforcement cage (6) is higher than a construction surface, and the building base body (2) and the step body (3) are both cast and molded on the steel reinforcement cage (6) higher than the construction surface.

Technical Field

The invention relates to the field of buildings, in particular to a soft soil foundation outdoor step structure and a construction method thereof.

Background

At present, in the construction process of buildings, outdoor steps need to be designed and constructed at a service entrance, the construction of the outdoor steps is basically that after the construction of a main building is finished, the outdoor steps are poured, and at present, particularly after the construction is carried out on a soft soil foundation, the outdoor steps are greatly settled by a swimming suit, so that the outdoor steps and the main building are greatly cracked and staggered, and the outdoor steps are easy to crack.

Chinese patent publication No. CN105155789A discloses a method for cast-in-situ outdoor steps and reducing differential settlement between outdoor steps and main building, which is supported by connecting members connected with the main building body and pipe piles extending into soil. Although the connection between the outdoor step and the main building can be improved by the aid of the structure, the contact surface between the outdoor step and soil can be improved, the supporting effect can be improved, the connection between the outdoor step and the main building can be strengthened, the overall settlement under a soft soil foundation cannot be avoided, and the time for fracture after settlement can be delayed slightly, so that the outdoor step is cracked.

Disclosure of Invention

The invention aims to provide a soft soil foundation outdoor step structure and a construction method thereof, which have the advantage of reducing cracking of the soft soil foundation outdoor step.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides an outdoor stair structure of soft soil foundation, includes ground foundation pile, building base member, the step body, and in a plurality of foundation piles inserted earth, the building base member sets up on ground foundation pile, the step body sets up in building base side, and the step body below is equipped with foundation column, support column, the foundation column slope sets up, two foundation column one end is contradicted respectively in two ground foundation pile sides that are close to the step body, two the foundation column other end is contradicted each other, a plurality of the support column one end is contradicted on the side that the foundation column is close to the building base member, the support column other end sets up on the building base member, be equipped with the steel reinforcement cage that the case step body extends on the support column, the pouring has concrete layer in the steel reinforcement cage.

Through adopting above-mentioned technical scheme, support on foundation pile through setting up the foundation column, and compile the steel reinforcement cage and be used for pouring concrete layer, the support column is being connected to the steel reinforcement cage, consequently makes the concrete layer after the pouring actually support on foundation pile, and the concrete layer that consequently forms can form integratively with the building base member, promotes the supporting role to the step body to the effectual fracture phenomenon that has reduced outdoor step on the soft soil foundation.

Furthermore, the side surface of the foundation pile is provided with a limiting hole, and the foundation column is supported in the limiting hole.

Through adopting above-mentioned technical scheme, spacing hole supplies the foundation column to support, promotes the limiting displacement to the foundation column, avoids producing after the foundation column is fixed and slides downwards.

Further, concrete layer pouring is steel reinforcement cage upper portion, steel reinforcement cage lower part is filled earth.

Through adopting above-mentioned technical scheme, fill earth and be used for melting into outside other earth, make steel reinforcement cage upper portion have better design effect before the pouring, promote the stability to concrete layer pouring process and after the pouring, promote the pouring effect.

Furthermore, the reinforcement cage extends into the step body and the building base body.

Through adopting above-mentioned technical scheme, it is that the step body forms an organic whole with the building base member through the setting of steel reinforcement cage, promotes holistic joint strength, the effectual fracture phenomenon that has reduced.

A construction method of soft soil foundation outdoor steps is characterized in that: the method comprises the following steps:

the method comprises the following steps: excavating earth;

step two: processing earthwork;

step three: setting foundation piles;

step four: backfilling earthwork: backfilling soil in the earthwork to be smooth;

step four, step one: filling soil to the height of the limiting hole, abutting one end of each foundation column against the position of the limiting hole, and abutting the other ends of the two foundation columns against each other;

step four, step two: continuously backfilling the soil until the soil buries at least half of the foundation pillar, and ensuring the stability of the foundation pillar;

step four, step three: vertically inserting the support column into soil to be abutted against the foundation column, and continuously backfilling the soil;

step four, step four: backfilling soil to ensure the stability of the support column, putting the support column into a reinforcement cage, penetrating the support column through the reinforcement cage, and continuously backfilling soil to submerge part of the reinforcement cage;

step four, step five: then pouring concrete at the position of the reinforcement cage until the position of the reinforcement cage is level to the construction surface to form a concrete layer;

step five: pouring a building matrix at the position after backfilling;

step six: and pouring the step body on the concrete layer.

Through adopting above-mentioned technical scheme, at the in-process that the earthwork was backfilled, set up the position to foundation column, support column and steel reinforcement cage and carry out the segmentation and backfill, the effectual setting effect of strengthening the structure of step body bottom of strengthening, the overall structure's of being convenient for setting up to and the support effect to the step body in promotion later stage.

Step four, step one: the two foundation columns are preliminarily fixed through a wood frame;

step four, step three: the support column is preliminarily fixed through a wooden frame.

Through adopting above-mentioned technical scheme, carry out basic fixed through the wooden frame, carry out the earthwork again and backfill, avoid producing the position and influence the support effect to the step body at the in-process foundation post and the support column that the earthwork was backfilled.

Step four, step four: the reinforcement cage is bound on the support column through an iron wire.

Through adopting above-mentioned technical scheme, through the binding of iron wire, promote the fixed effect of steel reinforcement cage before concrete placement.

Step five: the steel reinforcement cage is higher than the construction surface, and the building base body and the step body are both cast and molded on the steel reinforcement cage higher than the construction surface.

Through adopting above-mentioned technical scheme, through the mode that same steel reinforcement cage was pour, be connected integratively with concrete layer, promote the wholeness after the pouring, promote fixed effect.

In conclusion, the invention has the following beneficial effects:

1. by arranging the effective supporting structure, the supporting effect on the outdoor step is improved, and the cracking phenomenon is reduced;

2. the reinforcing cage is arranged, so that the connection strength between the outdoor step and the building base body is greatly improved, and the cracking phenomenon is reduced.

Drawings

FIG. 1 is a view showing an installation state of a base column and a support column;

FIG. 2 is a view showing the installation state of the reinforcement cage;

FIG. 3 is a view showing a state of casting of a concrete layer;

FIG. 4 is a diagram of a poured state of a building matrix;

FIG. 5 is a pouring state diagram of the step body;

fig. 6 is a schematic view of the arrangement of the building base and the step body on the ground.

In the figure, 1, a foundation pile; 2. a building matrix; 3. a step body; 4. a base pillar; 41. a limiting hole; 5. a support pillar; 6. a reinforcement cage; 7. and a concrete layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides an outdoor stair structure of soft soil foundation, as shown in fig. 5, includes foundation pile 1, building base member 2, the step body 3, in a plurality of foundation piles 1 inserted earth, building base member 2 set up on foundation pile 1, step body 3 sets up in building base member 2 sides, and foundation pile 1 is effectual supports building base member 2, guarantees building base member 2's stability, promotes the whole supporting effect of later stage building.

As shown in fig. 1, 5, be equipped with foundation column 4 below the step body 3, support column 5 is used for carrying out effectual support to the step body 3, wherein set up two 4 slopes of foundation column and set up, and two 4 one ends of foundation column are contradicted respectively and are being close to two foundation pile 1 sides of the step body 3, two 4 other ends of foundation column are contradicted each other, and foundation pile 1 side receives the position of two 4 conflicts of foundation column and has set up spacing hole 41, thereby foundation column 4 can support in spacing hole 41, spacing hole 41 supplies foundation column 4 to support, promote the limiting displacement to foundation column 4, avoid foundation column 4 to produce after fixed and slide downwards, and foundation column 4 after the installation can be in earth, thereby the effectual connection effect who guarantees foundation column 4.

As shown in fig. 1, 4, 5 one end of a plurality of support column is contradicted on the side that foundation column 4 is close to building base body 2, the support column 5 other end forms fixed knot in building base body 2 pouring's in-process direct pouring to building base body 2, thereby support column 5 both ends homoenergetic receives effectual fixed, because foundation column 4's one end supports in spacing hole 41, realized fixedly, and the other end is contradicted each other again, after receiving the effect that support column 5 pushed down, still can keep good supporting effect, and support column 5 also buries underground in earth, thereby also avoided support column 5 to produce great displacement, whole stability has been improved.

As shown in fig. 2, 3 and 5, the reinforcement cage 6 is fixed by iron wires to form the reinforcement cage 6 with a rectangular parallelepiped structure, the supporting column 5 penetrates into the reinforcement cage 6, the supporting column 5 and the reinforcement cage 6 are fixed through iron wires, thereby improving the stability of the steel reinforcement cage 6 after being arranged, backfilling soil on the lower part of the steel reinforcement cage 6 and compacting, pouring concrete on the upper part of the steel reinforcement cage 6 until the elevation height of the ground is the same, improving the connection effect between the steel reinforcement cage 6 and the original soil through the arrangement of soil backfilling, the mutual relation between the later stage and the surrounding environment is promoted, the function of independent sedimentation is reduced, the formed concrete is poured to form a good connecting platform for the step body 3, the influence of the land on the pouring is reduced, and the subsequent retreatment to the pouring soft soil ground is avoided, and the pouring effect of the subsequent step body 3 is improved, so that the cracking phenomenon of the outdoor step on the soft soil foundation is effectively reduced.

As shown in fig. 3, 4 and 5, and steel reinforcement cage 6 sets up the height and exceeds the ground elevation, and the follow-up direct pouring of 6 positions of steel reinforcement cage that extend out is to step body 3 and building base member 2 in to make steel reinforcement cage 6 can effectual connection step body 3, building base member 2 and concrete layer 7, promote holistic joint strength, the effectual fracture phenomenon that has reduced.

A construction method of outdoor steps of a soft soil foundation is combined with the attached drawings, and comprises the following steps:

the method comprises the following steps: excavating earth;

step two: processing earthwork;

step three: arranging foundation piles 1;

step four: backfilling earthwork: backfilling soil in the earthwork to be smooth;

step four, step one: the soil is firstly filled to the height of the limiting hole 41, one end of each foundation column 4 is abutted against the position of the limiting hole 41, the other ends of the two foundation columns 4 are abutted against each other, and the two foundation columns 4 are preliminarily fixed through a wood frame;

step four, step two: continuously backfilling the soil until the soil buries at least half of the foundation pillar 4, and ensuring the stability of the foundation pillar 4;

step four, step three: vertically inserting the support column 5 into the soil to be abutted against the foundation column 4, primarily fixing the support column 5 through a wood frame, and continuously backfilling the soil;

step four, step four: soil is backfilled to ensure that the support column 5 is stable, then the reinforcement cage 6 is placed, the support column 5 penetrates through the reinforcement cage 6, the reinforcement cage 6 is bound on the support column 5 through an iron wire, and then soil is backfilled continuously to submerge a part of the reinforcement cage 6;

step four, step five: then pouring concrete at the position of the reinforcement cage 6 until the position is level with the construction surface to form a concrete layer 7;

step five: the steel reinforcement cage 6 is higher than the construction surface, the building matrix 2 and the step body 3 are both cast and molded on the steel reinforcement cage 6 higher than the construction surface, and the building matrix 2 is cast at the position after backfilling;

step six: and pouring the step body 3 on the concrete layer.

At the in-process that the earthwork was backfilled, set up the position to foundation column 4, support column 5 and steel reinforcement cage 6 and carry out the segmentation and backfill, the effectual 3 bottom strengthening structures's of the step body of strengthening setting up the effect, the overall structure's of being convenient for setting up to and the support effect to the step body 3 that promotes the later stage.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.