CN214738101U - Integrated structure of large underground single structure and deep foundation pit support - Google Patents

Abstract

The utility model discloses an integral structure of large-scale underground monomer structures and deep basal pit enclosure, its characterized in that: including being located the inside basement major structure of foundation ditch, basement major structure mainly comprises stull, stand, basement bottom plate and basement side wall, basement bottom plate below has set gradually the bed course and the stagnant water curtain of permeating water to pass in proper order through uplift pile top behind stagnant water curtain and the bed course of permeating water with basement bottom plate fixed connection. The utility model discloses safe and reliable, structure are simple and easy, construction convenience, can satisfy the enclosure demand of large-scale underground monomer structures economy, safety.

Description

Integrated structure of large underground single structure and deep foundation pit support

Technical Field

The utility model relates to a large-scale underground monomer structures retaining structure technical field, concretely relates to large-scale underground monomer structures and deep basal pit enclosed integral structure.

Background

The construction of large underground single structures such as the primary rain storage pond and the like has important significance for solving the three crises of population, resources and environment. When a large underground single structure is constructed, the stress state of the soil body is changed due to excavation of a foundation pit and unloading of the soil body, and engineering safety accidents are easily caused. In addition, the buoyancy force of the groundwater on the superstructure is also a significant factor which is not negligible in case of high groundwater level. Therefore, the enclosing problem of the large underground single structure is a technical problem which needs to be solved in the construction process.

In the process of foundation pit construction, the problems of engineering cost, construction period and earth retaining and seepage preventing of the building enclosure are always difficult problems in engineering. For a building foundation pit, the construction input cost accounts for relatively less total engineering cost, the structures of water conservancy facilities such as a regulation pool and a large-scale pump station are relatively simple, and the foundation pit construction input cost accounts for relatively more total engineering cost in the construction process. No matter the building foundation pit or the regulation pond, need set up interim interior support often for preventing envelope unstability, demolish it after the foundation pit construction is accomplished, will lead to the fact fund waste to a certain extent certainly, influence the engineering progress simultaneously. In the face of seepage-proofing problem, a waterproof curtain is often built on the side wall of the foundation pit, but in actual engineering, the waterproof curtain mostly prolongs the seepage path, and it is impossible to achieve complete water impermeability.

Therefore, the utility model discloses the construction of the large-scale underground monomer structures who involves among the water environmental management engineering of plain city provides a relative economy, safe foundation ditch retaining structure and has certain realistic meaning.

SUMMERY OF THE UTILITY MODEL

To the not enough of existence among the prior art, the utility model aims to provide a large-scale underground monomer structures and deep basal pit enclosure's integral structure. The utility model discloses safe and reliable, structure are simple and easy, construction convenience, can satisfy the enclosure demand of large-scale underground monomer structures economy, safety.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

the utility model provides an integrated structure of large-scale underground monomer structures and deep basal pit enclosure, including being located the inside basement major structure of foundation ditch, basement major structure mainly comprises stull, stand, basement bottom plate and basement side wall, basement bottom plate below has set gradually the bed course and the stagnant water curtain of permeating water to pass in proper order through uplift pile top behind stagnant water curtain and the bed course of permeating water with basement bottom plate fixed connection.

As the utility model discloses a preferred technical scheme, the stull is including the three stulls that from top to bottom interval arrangement in proper order, and wherein first stull elevation is slightly less than the ground line elevation, and second stull is located first stull below, and third stull is located between second stull and the basement bottom plate.

As an optimal technical scheme of the utility model, stand top elevation is the same with the ground line elevation, and the bottom elevation is the same with the basement bottom plate to firmly be connected with the basement bottom plate.

As an optimal technical scheme of the utility model, the uplift pile is located basement bottom plate lower part, uplift pile top elevation is the same with basement bottom plate to firmly be connected with basement bottom plate.

As an optimal technical scheme of the utility model, the cushion that permeates water is the closely knit particle size metalling such as certain thickness.

As an optimized technical scheme of the utility model, the plane size of the bed course and the waterproof curtain of permeating water is not less than basement bottom plate size.

As an optimal technical scheme of the utility model, the bed course and the equal level of stagnant water curtain set up of permeating water, and all are on a parallel with the basement bottom plate.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

(1) the basement major structure has the effect of interior support, reduces construction process, practices thrift engineering cost, has the economic nature.

(2) Compared with the traditional enclosure form, the temporary support is not arranged any more, and the construction period is shortened.

Drawings

The utility model discloses large-scale underground monomer structures and deep basal pit enclosure integral structure can be through the non-limiting implementation further explanation that the attached drawing given:

FIG. 1 is a plan view of a large underground monolithic structure;

FIG. 2 is a sectional view of a large underground monolithic structure.

Reference numerals: 1-horizontal bracing; 2-upright post; 3-soil body; 4-basement side walls; 5-a water permeable cushion layer; 6-uplift pile; 7-basement floor; 8-waterproof curtain.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The present invention will be further described with reference to the accompanying drawings 1 and 2 and the following examples, which are not intended as a limitation of the present invention.

As shown in fig. 1 and 2, the embodiment provides an enclosure structure suitable for a large underground single structure, which mainly comprises a waterproof curtain 8, a basement main structure, uplift piles 6 and a permeable cushion layer 5.

Wherein, basement major structure is located inside the foundation ditch, contains stull 1, stand 2 and basement side wall 4. The cross brace 1 is constructed according to the design requirements of engineering enclosure, the elevation of the first cross brace is slightly lower than that of a ground line, the second cross brace is located below the first cross brace, the third cross brace is located between the second cross brace and the basement bottom plate 7, and the distance between the three cross braces is designed according to the engineering design specifications.

Furthermore, the elevation of the top of the upright post 2 is the same as that of the ground line, and the elevation of the bottom is the same as that of the basement bottom plate 7, and the upright post is firmly connected with the basement bottom plate 7. The basement side wall 4 is constructed by using a site construction machine, and the size of the basement side wall 4 is designed according to the requirement of engineering containment.

Wherein, basement bottom plate 7 below is provided with permeable bed course 5 and stagnant water curtain 8 in proper order to pass through 6 pile tops of anti-floating pile behind stagnant water curtain 8 and the permeable bed course 5 with basement bottom plate 7 fixed connection in proper order. Specifically, the thickness of the waterproof curtain 8 meets the waterproof requirement of the foundation pit, and the waterproof curtain 8 is constructed by adopting on-site curtain professional equipment.

Further, the permeable cushion layer 5 and the waterproof curtain 8 are both horizontally arranged and are both parallel to the basement bottom plate 7. The plane sizes of the permeable cushion layer 5 and the waterproof curtain 8 are not smaller than the size of the basement bottom plate 7.

Further, the uplift pile 6 is located at the lower portion of the basement bottom plate 7, and the elevation of the top of the uplift pile 6 is the same as that of the basement bottom plate 7 and is firmly connected with the basement bottom plate 7. The outer contour structure of the uplift pile 6 is cuboid or cylindrical, and the length, the cross section shape, the cross section area, the steel bar configuration and the like of the pile body meet the design of an anti-floating structure of underground engineering; the uplift pile 6 is prefabricated in an uplift pile prefabricating factory and is constructed by adopting a special pile driving or pile pressing construction machine on site.

Further, the water permeable cushion layer 5 is a dense crushed stone layer with equal particle size and a certain thickness. The thickness of the permeable cushion layer 5 is preferably 30-50cm, and the construction of the permeable cushion layer 5 adopts the methods of on-site artificial paving and mechanical compaction.

According to the utility model discloses a description and attached drawing, the field technical personnel make or use very easily the utility model discloses a large-scale secret monomer structures and deep basal pit enclosure's integral structure to can produce the positive effect recorded in the utility model.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims (7)

1. The utility model provides an integral structure of large-scale underground monomer structures and deep basal pit enclosure which characterized in that: including being located the inside basement major structure of foundation ditch, basement major structure mainly comprises stull, stand, basement bottom plate and basement side wall, basement bottom plate below has set gradually the bed course and the stagnant water curtain of permeating water to pass in proper order through uplift pile top behind stagnant water curtain and the bed course of permeating water with basement bottom plate fixed connection.

2. The integrated structure of a large underground single structure and a deep foundation pit support according to claim 1, wherein: the stull is including the three stulls that from top to bottom arrange in proper order interval, and wherein first stull elevation slightly is less than the ground line elevation, and the second stull is located first stull below, and the third stull is located between second stull and the basement bottom plate.

3. The integrated structure of a large underground single structure and a deep foundation pit support according to claim 1, wherein: the top elevation of the upright post is the same as the elevation of the ground line, and the bottom elevation of the upright post is the same as the elevation of the basement bottom plate and is firmly connected with the basement bottom plate.

4. The integrated structure of a large underground single structure and a deep foundation pit support according to claim 1, wherein: the uplift pile is located on the lower portion of the basement bottom plate, and the elevation of the top of the uplift pile is the same as that of the basement bottom plate and is firmly connected with the basement bottom plate.

5. The integrated structure of a large underground single structure and a deep foundation pit support according to claim 1, wherein: the permeable cushion layer is a dense crushed stone layer with the same particle size and a certain thickness.

6. The integrated structure of a large underground single structure and a deep foundation pit support according to claim 1, wherein: the plane sizes of the water-permeable cushion layer and the water-stopping curtain are not smaller than the size of the basement bottom plate.

7. The integrated structure of a large underground single structure and a deep foundation pit support according to claim 1, wherein: the permeable cushion layer and the waterproof curtain are horizontally arranged and are parallel to the basement bottom plate.

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