CN215211064U

CN215211064U - Basement foundation pit supporting structure

Info

Publication number: CN215211064U
Application number: CN202120852039.1U
Authority: CN
Inventors: 蒋银江; 闻明; 陶峰烽
Original assignee: ZHEJIANG GUOFENG GROUP CO Ltd
Current assignee: ZHEJIANG GUOFENG GROUP CO Ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-12-17
Anticipated expiration: 2031-04-23

Abstract

The utility model relates to a basement underground structure, including strutting the soil layer, setting up at the inboard inner support fender pile of strutting the soil layer and connecting the waist rail between each inner support fender pile, the upper end of inner support fender pile is provided with the crossbeam, the middle part of strutting the pile including the waist rail setting, the top side of strutting the soil layer is provided with the slope, it is provided with outer support fender pile in the soil layer to strut, the upper end of outer support fender pile is located the top on slope, be provided with the tie-beam between the upper end of outer support fender pile and the crossbeam, the tie-beam is leaned on and is pressed in slope. The utility model discloses a tie-beam establishes to be connected between outer fender pile and crossbeam to connect between each inner support fender pile through the crossbeam, make outer fender pile can produce tensile effect to inner fender pile, not through the horizontal resistance that has improved a fender pile, improved and strutted holistic ability, also reduced the use of bracing beam moreover, avoid influencing the construction of basement shear force wall.

Description

Basement foundation pit supporting structure

Technical Field

The utility model relates to a foundation ditch supporting construction technical field, in particular to basement foundation ditch supporting construction.

Background

With the construction of a large number of high-rise buildings and the development of underground spaces, and in order to meet the structural requirements of high-rise buildings such as earthquake resistance, wind resistance and the like, basements are developed from one floor to multiple floors, and the corresponding excavation depth of foundation pits is deeper and deeper. In the process of basement foundation pit supporting construction, in order to prevent that the foundation pit inner wall from collapsing, often can set up a large amount of bracing beams in basement shear wall inboard and be used for supporting the fender pile in the foundation pit, increase horizontal corner brace simultaneously and be used for further improving the horizontal resistance of fender pile at basement corner. However, the inclined strut beam and the horizontal angle strut are generally arranged in the range of the basement, so that the construction of the basement shear wall is influenced, and the waterproof effect of the basement shear wall is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a basement underground structure improves the supporting ability of fender pile under the condition that does not influence the construction of basement shear force wall.

The above object of the present invention can be achieved by the following technical solutions: a basement foundation pit supporting structure comprises a supporting soil layer, inner supporting piles arranged on the inner side of the supporting soil layer and waist beams connected among the inner supporting piles, wherein cross beams are arranged at the upper ends of the inner supporting piles, the waist beams are arranged in the middle of the inner supporting piles, slopes are arranged on the side faces of the tops of the supporting soil layer, outer supporting piles are arranged in the supporting soil layer, the upper ends of the outer supporting piles are located above the slopes, connecting beams are arranged between the upper ends of the outer supporting piles and the cross beams, and the connecting beams lean against the slopes.

Preferably, the outer support piles and the inner support piles are distributed at intervals along the same direction, and the distance between the outer support piles is larger than that between the inner support piles.

Preferably, the cross section of the outer support piles and the cross section of the inner support piles are H-shaped.

Preferably, a concrete support wall for connecting the inner support pile and the shear wall of the basement is arranged on the inner side of the inner support pile, and the concrete support wall is arranged below the waist beam.

Preferably, the connecting beam is in a Z-shaped structure.

Preferably, both ends of the connecting beam are detachably connected with the outer support piles and the cross beam.

Preferably, the upper end of the supporting soil layer is provided with a water tank, and the water tank is arranged on the outer side of the outer supporting pile.

Preferably, a reinforcing mesh and a concrete layer are laid on the surface of the slope.

The utility model has the advantages that: the utility model discloses a tie-beam establishes to be connected between outer fender pile and crossbeam to connect between each inner support fender pile through the crossbeam, make outer fender pile can produce tensile effect to inner fender pile, not through the horizontal resistance that has improved a fender pile, improved and strutted holistic ability, also reduced the use of bracing beam moreover, avoid influencing the construction of basement shear force wall.

Drawings

Fig. 1 is a side view of an embodiment of the invention;

fig. 2 is a top view of an embodiment of the invention;

in the figure: 1-supporting soil layer, 101-slope, 102-water tank, 2-outer supporting pile, 3-inner supporting pile, 4-waist beam, 5-cross beam, 6-connecting beam, 7-basement shear wall and 8-concrete support wall.

Detailed Description

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

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 to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the claims of the present invention.

Example (b): as shown in fig. 1 and 2, the basement foundation pit supporting structure comprises a supporting soil layer 1, inner supporting piles 3 arranged on the inner side of the supporting soil layer 1, and waist beams 4 connected between the inner supporting piles 3. The upper end of inner support fender pile 3 is provided with crossbeam 5, and waist rail 4 sets up the middle part of inner support fender pile 3, and crossbeam 5 and waist rail 4 are parallel arrangement from top to bottom, and both all install on inner support fender pile 3 through the bolt.

The supporting soil layer 1 is arranged on the outer side of the basement shear wall 7, a slope 101 is arranged on the side face of the top of the supporting soil layer 1, and the slope 101 faces the direction of the foundation pit. The surface of the slope 101 is paved with a reinforcing mesh and a concrete layer.

An outer supporting pile 2 is arranged in the supporting soil layer 1, the upper end of the outer supporting pile 2 is located above the slope 101, a connecting beam 6 is arranged between the upper end of the outer supporting pile 2 and the cross beam 5, the connecting beam 6 is of a Z-shaped structure, and the connecting beam 6 is pressed on the slope 101.

The cross sections of the outer support piles 2 and the inner support piles 3 are H-shaped, namely the outer support piles 2 and the inner support piles 3 adopt H-shaped steel.

The both ends of tie-beam 6 are connected with outer fender pile 2 and crossbeam 5 through removable mode, and the both ends of tie-beam 6 adopt bolt and nut to fix with outer fender pile 2 and crossbeam 5 in this embodiment. The connecting holes of the cross beam 5 are long slotted holes, so that the connecting position can be conveniently adjusted.

The outer support piles 2 and the inner support piles 3 are distributed at intervals along the same direction, and the distance between the outer support piles 2 is larger than that between the inner support piles 3.

The inner side of the inner supporting pile 3 is provided with a concrete support wall 8 for connecting the inner supporting pile 3 and the basement shear wall 7, and the concrete support wall 8 is arranged below the waist beam 4.

The upper end of the supporting soil layer 1 is provided with a water tank 102, and the water tank 102 is arranged on the outer side of the outer supporting pile 2 to prevent accumulated water from being discharged into a foundation pit.

After the slope 101 of the supporting soil layer 1 is formed, pile holes are drilled in the supporting soil layer 1 and a foundation pit respectively, corresponding outer supporting piles 2 and inner supporting piles 3 are installed, and the inner supporting piles 3 are connected with the waist beam 4 through the cross beam 5. Then, a reinforcing mesh is laid on the slope 101, and a concrete layer is poured. The connecting beam 6 is then installed such that the connecting beam 6 is connected between the outer support piles 2 and the cross beam 5. And finally, pouring a concrete support wall 8 between the inner support piles 3 and the basement shear wall 7.

Claims

1. The utility model provides a basement foundation ditch supporting construction, includes supporting soil layer (1), sets up at the inboard inner support fender pile (3) of supporting soil layer (1) and connects waist rail (4) between each inner support fender pile (3), its characterized in that: the upper end of the inner supporting pile (3) is provided with a cross beam (5), the waist beam (4) is arranged in the middle of the inner supporting pile (3), a slope (101) is arranged on the side face of the top of the supporting soil layer (1), the outer supporting pile (2) is arranged in the supporting soil layer (1), the upper end of the outer supporting pile (2) is located above the slope (101), a connecting beam (6) is arranged between the upper end of the outer supporting pile (2) and the cross beam (5), and the connecting beam (6) is pressed on the slope (101).

2. The basement foundation pit supporting structure of claim 1, wherein: the outer support piles (2) and the inner support piles (3) are distributed at intervals along the same direction, and the distance between the outer support piles (2) is larger than that between the inner support piles (3).

3. The basement foundation pit supporting structure of claim 2, wherein: the cross sections of the outer support piles (2) and the inner support piles (3) are H-shaped.

4. The basement foundation pit supporting structure of claim 3, wherein: the concrete support wall (8) used for connecting the inner support pile (3) and the basement shear wall (7) is arranged on the inner side of the inner support pile (3), and the concrete support wall (8) is arranged below the waist beam (4).

5. The basement foundation pit supporting structure of claim 1, wherein: the connecting beam (6) is of a Z-shaped structure.

6. The basement foundation pit supporting structure of claim 5, wherein: and two ends of the connecting beam (6) are connected with the outer support piles (2) and the cross beam (5) in a detachable mode.

7. The basement foundation pit supporting structure of claim 1, wherein: and a water tank (102) is arranged at the upper end of the supporting soil layer (1), and the water tank (102) is arranged on the outer side of the outer supporting pile (2).

8. The basement foundation pit supporting structure of claim 1, wherein: and a reinforcing mesh and a concrete layer are laid on the surface of the slope (101).