Supporting structure suitable for deep foundation pit

Abstract

The utility model discloses a supporting structure suitable for a deep foundation pit, which relates to the technical field of building construction and comprises a first supporting column poured in the ground body, a first top beam is poured at the upper end of the first supporting column, a foundation pit is arranged at the inner side end of the first supporting column, the inner side of the first supporting column is fixedly connected with a first connecting plate through a corner bracket, and a second connecting plate is arranged at the lower end of the first supporting column. A second supporting column is poured at the outer side end of the ground body, a second top beam is poured at the upper end of the second supporting column, a second connecting plate is fixedly connected to the outer side of the second supporting column through a corner bracket, and an anchor rod is arranged at the inner side end of the first connecting plate in a penetrating mode; the utility model discloses a supporting structure suitable for a deep foundation pit. By arranging a second supporting column, a second connecting plate and a water guiding mechanism, when a deep foundation pit is excavated, a ground body between the first supporting column and the second supporting column is clamped and tamped through the first supporting column and the second supporting column, the ground body can be more compact under the action of anchor pulling of an anchor rod, water and soil loss is avoided, rainwater can be drained under the action of a water guiding base table and a water guiding groove, and therefore the deep foundation pit is excavated. And a better stabilizing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a supporting structure suitable for a deep foundation pit. Background Art

[0002] During construction, projects often require deep foundation pit excavation, which is currently done by drilling holes in the ground and pouring concrete, waterproofing with waterproof curtains, and fixing with anchor cables.

[0003] However, when excavating a deep foundation pit, due to the different soil qualities, the traditional method is to only change the depth of the pipe column to strengthen the foundation. When the soil on the side is soft, this structure cannot provide safe support. In rainy weather, it is more likely to cause soil erosion and lead to collapse of the edge of the deep foundation pit. In addition, many mobile cabins are often built on the ground around the deep foundation pit for workers to stay. These mobile cabins invisibly increase the lateral pressure of the land. Therefore, there is an urgent need for a supporting structure suitable for deep foundation pits. The structure forms a stable clamp with the outer support column 2 and the inner support column 1, and drains water through the water guide base to avoid soil erosion, provide stable support, and improve construction safety. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a supporting structure suitable for deep foundation pits, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a supporting structure suitable for deep foundation pits, comprising a support column one poured into the ground, a crown beam one is cast on the upper end of the support column one, the inner end of the support column one is the foundation pit, the inner side of the support column one is fixedly connected with a connecting plate one through an angle bracket, a support column two is poured into the outer end of the ground, a crown beam two is cast on the upper end of the support column two, the outer side of the support column two is fixedly connected with a connecting plate two through an angle bracket, an anchor rod is penetrated at the inner end of the connecting plate one, the anchor rod is obliquely penetrated and penetrated on the connecting plate two, and a water guide mechanism is provided on the outer side of the support column two.

[0006] Furthermore, the water guiding mechanism includes: a water guiding base, which is located on the side of the outer body of the second supporting column and is poured thereon, a water guiding groove is provided on the upper end surface of the water guiding base, a water passage is provided on the outer end of the water guiding groove, and a plurality of water passages are provided.

[0007] Furthermore, a drainage groove is provided at the upper end of the ground body, the drainage groove is inclined, and the interior of the drainage groove is hardened with concrete.

[0008] Further, the second connecting plate is fixedly arranged inside the water guiding base platform, and the second connecting plate is arranged below the first connecting plate.

[0009] Further, an inclined surface is formed at the outer edge of the water guiding base platform, and the inclined surface is set at 45 degrees.

[0010] Further, the buried depth of the second support column is not less than that of the first support column.

[0011] Compared with the above background art, a retaining structure applicable to deep foundation pits provided by the present application includes a retaining structure with very mature technology nowadays, as well as the second support column, the second capping beam, the second connecting plate and the water guiding mechanism as the core components. Its principle relies on firmly clamping the middle layer of the ground body, avoiding soil and water loss under the water guiding effect of the water guiding mechanism, and improving construction safety.

[0012] The utility model provides a retaining structure applicable to deep foundation pits. Compared with the prior art, it has the following beneficial effects:

[0013] The retaining structure applicable to deep foundation pits; by arranging the second support column, the second connecting plate and the water guiding mechanism, when excavating a deep foundation pit, the ground body between them is clamped and tamped by the first support column and the second support column, and can be made more compact under the action of the anchor rod tension anchor, avoiding soil and water loss, and the rainwater can be discharged under the action of the water guiding base platform and the water guiding groove, achieving a better stability effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the utility model;

[0015] Figure 2 is a schematic structural diagram of a partial section of the ground body of the utility model;

[0016] Figure 3 is a schematic structural diagram of the water guiding base platform and the water guiding groove of the utility model;

[0017] Figure 4 is Figure 2 an enlarged structural diagram of part A in

[0018] In the figure: 1, ground body; 2, first support column; 3, first capping beam; 4, first connecting plate; 5, anchor rod; 6, second support column; 7, second capping beam; 8, second connecting plate; 9, drainage groove; 10, water guiding base platform; 11, water guiding groove; 12, water guiding through groove; 13, inclined surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 4 , the present invention provides a technical solution: a support structure suitable for deep foundation pits, including a first support column 2 poured in the ground body 1, a first capping beam 3 is cast at the upper end of the first support column 2, the inner side end of the first support column 2 is a foundation pit, a first connecting plate 4 is fixedly connected to the inner side of the first support column 2 through an angle bracket, a second support column 6 is poured at the outer side end of the ground body 1, a second capping beam 7 is cast at the upper end of the second support column 6, a second connecting plate 8 is fixedly connected to the outer side of the second support column 6 through an angle bracket, an anchor rod 5 is penetrated through the inner side end of the first connecting plate 4, the anchor rod 5 is inclined and penetrates through the second connecting plate 8, and a water guiding mechanism is arranged on the outer side of the second support column 6; during construction, first, the first support column 2 is drilled and poured on the ground body 1 according to the edge of the foundation pit size in the drawing. After the first support column 2 is poured, the soil around the first support column 2 is excavated, and the first capping beam 3 is cast at the upper end of the first support column 2. At this time, different from the traditional support structure, according to different geological conditions, the second support column 6 is poured at equal intervals on the outer side of the first capping beam 3. The distance between the first support column 2 and the second support column 6 is not less than five meters. Similarly, after the second support column 6 is poured, the surrounding soil is excavated, and the second capping beam 7 is cast at the upper end of the second support column 6. In this way, through the mutual clamping action of the first support column 2 and the second support column 6, the soil of the ground body 1 clamped in the middle is tamped. Then, by fixing an angle bracket at the inner side end of the first support column 2, fixing the first connecting plate 4 on the angle bracket, driving the anchor rod 5 at the position between the two first support columns 2, and fixing the second connecting plate 8 on the outer side of the second support column 6 through an angle bracket. At this time, the inner anchor rod 5 is inclined and driven into the ground body 1, and passes through the first connecting plate 4 and the second connecting plate 8. After passing through, pressure grouting is carried out into the interior through the anchor rod 5 to form a fixation. The grouting length is the anchorage section length of the anchor rod 5. Then, the anchor rod 5 is tensioned to provide a stable tension. At this time, the ground body 1 between the first support column 2 and the second support column 6 is more tamped. A water guiding mechanism is arranged on the outer side of the ground body 1 to drain the water in rainy weather through the water guiding mechanism, avoiding the accumulation and causing soil erosion. Through such a support structure, the periphery of the foundation pit can be made more firm, avoiding the collapse of the foundation pit during the construction vibration process; the construction methods of the above-mentioned second support column 6, second capping beam 7, second connecting plate 8 and anchor rod 5 are existing mature technologies. Therefore, the specific construction methods are not introduced too much here.

[0021] As Figure 2As shown in the figure, the water guiding mechanism includes: a water guiding base platform 10, which is arranged by pouring on the side of the ground body 1 outside the second support column 6. A water guiding groove 11 is opened on the upper end surface of the water guiding base platform 10, and a water through groove 12 is opened at the outer end of the water guiding groove 11, and the number of the water through grooves 12 is set to be multiple; the water guiding base platform 10 is arranged outside the second support column 6. First, a pit is dug outside the second support column 6, and pouring is carried out in the pit. When pouring, through the limitation of the template, the water guiding groove 11 is left on the upper end surface of the water guiding base platform 10. The water can be guided through the water guiding groove 11, and the guided water flows out through the water through groove 12, thus avoiding the accumulation of water to erode the land outside the second support column 6.

[0022] As Figure 1 shown in the figure, a water drainage groove 9 is opened on the upper end of the ground body 1. The water drainage groove 9 is arranged obliquely, and the inside of the water drainage groove 9 is set for concrete hardening treatment; when the water accumulates on the ground body 1, it flows into the ground body 1 through the water drainage groove 9, and the inside of the water drainage groove 9 is hardened by concrete pouring, thus avoiding the erosion of the water drainage groove 9 by water. Through the dredging of the water drainage groove 9, the water flows into the water guiding groove 11 for guiding.

[0023] As Figure 2 shown in the figure, the second connecting plate 8 is fixedly arranged inside the water guiding base platform 10, and the second connecting plate 8 is arranged below the first connecting plate 4; the second connecting plate 8 and the first connecting plate 4 are arranged vertically offset from each other, in order to be able to provide clamping force at different positions better, so that the internal first support column 2 and the second support column 6 can be more firm.

[0024] As Figure 4 shown in the figure, an inclined surface 13 is opened at the outer end edge of the water guiding base platform 10. The inclined surface 13 is set at 45 degrees. The opening of the inclined surface 13 is beneficial to the discharge of water, and through the setting of the inclined surface 13, the impact of water flow on the water guiding groove 11 can be reduced, and the service life of the water guiding groove 11 can be improved.

[0025] As Figure 3 shown in the figure, the buried depth of the second support column 6 is not less than the buried depth of the first support column 2. The buried depth of the outer second support column 6 is not less than the depth of the first support column 2. In this way, the outer second support column 6 can bear more external soil pressure, and thus play a role in resisting pressure.

[0026] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A support structure applicable to deep foundation pits, including a first support column (2) poured in the ground body (1), and a first capping beam (3) is cast and arranged at the upper end of the first support column (2), characterized in that, The inner end of the first support column (2) is a foundation pit. The inner side of the first support column (2) is fixedly connected with a first connecting plate (4) through an angle bracket. The outer side end of the ground body (1) is poured with a second support column (6). The upper end of the second support column (6) is cast with a second capping beam (7). The outer side of the second support column (6) is fixedly connected with a second connecting plate (8) through an angle bracket. The inner end of the first connecting plate (4) is penetrated by an anchor rod (5). The anchor rod (5) is inclined and penetrates through the second connecting plate (8). A water guiding mechanism is arranged on the outer side of the second support column (6).

2. The retaining structure applicable to deep foundation pits according to claim 1, characterized in that, The water guiding mechanism includes: A water guiding base (10). The water guiding base (10) is arranged by pouring on the side surface of the ground body (1) outside the second support column (6). A water guiding groove (11) is opened on the upper end surface of the water guiding base (10). A through water groove (12) is opened at the outer end of the water guiding groove (11), and the number of the through water grooves (12) is set to be multiple.

3. The retaining structure applicable to deep foundation pits according to claim 2, wherein, A water drainage groove (9) is opened at the upper end of the ground body (1). The water drainage groove (9) is inclined, and the inside of the water drainage groove (9) is set for concrete hardening treatment.

4. A retaining structure applicable to deep foundation pits according to claim 2, characterized in that, The second connecting plate (8) is fixedly arranged in the water guiding base (10), and the second connecting plate (8) is arranged below the first connecting plate (4).

5. A retaining structure applicable to deep foundation pits according to claim 2, characterized in that, An inclined surface (13) is opened at the outer end edge of the water guiding base (10), and the inclined surface (13) is set at 45 degrees.

6. A retaining structure applicable to deep foundation pits according to claim 2, characterized in that, The buried depth of the second support column (6) is not less than that of the first support column (2).

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