Slope tower crane foundation structure

Abstract

The utility model relates to the technical field of construction, and discloses a side slope tower crane foundation structure which comprises a side slope comprising a slope top, a slope bottom and a slope surface. The foundation platform is arranged on the slope top, the interval between the edge of the side, close to the slope bottom, of the slope top and the foundation platform is L, and L is larger than or equal to 2 m; and the pile foundation is located below the foundation platform and fixedly connected with the foundation platform, and the pile foundation penetrates into the side slope, so that the foundation platform has enough bearing capacity to support and fix the tower crane to the top of the slope. According to the slope tower crane foundation structure provided by the utility model, the foundation platform is fixedly arranged on the slope top through the pile foundation, so that the tower crane is conveniently supported and fixed on the slope top; when the foundation platform is arranged at the bottom of the slope, earth excavation and sloping need to be carried out at the bottom of the slope in the early stage, and bricks need to be built around the tower crane during soil backfilling in the later stage; the arrangement is beneficial to reducing the workload; and the problem that potential safety hazards exist in the using process due to the fact that a deep pit is formed in the position of the tower crane foundation during soil backfilling can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, and particularly relates to a slope tower crane foundation structure. Background Art

[0002] The tower crane foundation is a foundation structure for supporting the tower crane, and its main function is to bear the weight of the tower crane itself and keep it running stably. A slope refers to a geological body with a lateral free face formed naturally or artificially on the ground surface. When there is a conflict between the foundation of the tower crane on the slope and the foundation of the tower crane, usually the foundation structure of the tower crane on the slope is placed at the bottom of the slope, and the surrounding soil is excavated and sloped. However, this method requires earth excavation and sloping in the early stage, and bricklaying is required around the tower crane during backfilling in the later stage, which is a large amount of work, and a deep pit is formed at the position of the tower crane foundation, posing a safety hazard. Content of the Utility Model

[0003] In view of this, the utility model provides a slope tower crane foundation structure to solve the problems that when the tower crane foundation is set at the bottom of the slope, earth excavation and sloping are required in the early stage, bricklaying is required during backfilling in the later stage, the workload is large, and a deep pit is formed at the position of the tower crane foundation, posing a safety hazard.

[0004] The utility model provides a slope tower crane foundation structure, including:

[0005] A slope, including a slope top, a slope bottom and a slope surface;

[0006] A foundation platform, which is arranged on the slope top, and the interval distance between the foundation platform and the edge of the slope top close to the slope bottom is L, where L≥2m;

[0007] Pile foundations, which are located below the foundation platform and are fixedly connected to the foundation platform. The pile foundations penetrate into the slope interior to enable the foundation platform to have sufficient bearing capacity to support and fix the tower crane on the slope top.

[0008] Beneficial effects: The foundation platform is fixedly arranged on the slope top through the pile foundations, so as to facilitate supporting and fixing the tower crane on the slope top; thereby avoiding the situation when the foundation platform is set at the bottom of the slope: earth excavation and sloping are required at the bottom of the slope in the early stage, and bricklaying is required around the tower crane during backfilling in the later stage; such an arrangement is beneficial to reducing the workload; and it can avoid the formation of a deep pit at the position of the tower crane foundation during backfilling, so as to avoid the problem of safety hazards during use.

[0009] In an optional embodiment, a slope surface is formed between the slope top and the slope bottom, and a support structure is arranged on the slope surface.

[0010] Beneficial effects: By arranging a support structure on the slope surface, the stability of the slope is enhanced, and the possibility of landslides or collapses is reduced.

[0011] In an alternative embodiment, the support structure includes a steel mesh and anchor bolts. The steel mesh is laid on the slope surface, and part of the anchor bolts penetrate into the slope interior while part of them are exposed on the slope surface. The exposed part of the anchor bolts is fixedly connected to the steel mesh.

[0012] In an alternative embodiment, the slope forms anchor holes corresponding to the anchor bolts. Part of the anchor bolts are inserted into the anchor holes, and the gap between the outer peripheral wall of the anchor bolts and the inner wall of the anchor holes is adapted to be filled with pure cement slurry.

[0013] Advantageous effects: By filling the gap between the outer peripheral wall of the anchor bolts and the inner wall of the anchor holes with pure cement slurry, it is beneficial to enhance the stability of the connection between the anchor bolts and the slope. At the same time, the anchor bolts and the cement form an integral body to jointly provide support for the slope.

[0014] In an alternative embodiment, the anchor holes do not collide with the pile foundation and the foundation platform.

[0015] Advantageous effects: By avoiding the pile foundation with the anchor holes, it is possible to avoid damaging the structure of the pile foundation during drilling.

[0016] In an alternative embodiment, a bracket is fixedly connected to the outer peripheral wall of the anchor bolt, and the bracket is located inside the anchor hole.

[0017] Advantageous effects: By fixedly connecting a bracket to the outer peripheral wall area of the anchor bolt corresponding to the anchor hole, it is convenient to increase the acting force area between the anchor bolt and the pure cement slurry, thereby improving the stability and reliability of the anchor bolt in the anchor hole, and at the same time strengthening the structural strength of the overall anchor bolt and cement.

[0018] In an alternative embodiment, the length of the anchor bolt is S, where 6m ≤ S ≤ 10m.

[0019] In an alternative embodiment, the number of the anchor bolts includes multiple ones, and the multiple anchor bolts are distributed at intervals along the slope surface; multiple reinforcing bars are fixedly connected to the steel mesh, and the reinforcing bars are fixedly connected to the multiple anchor bolts.

[0020] Advantageous effects: The multiple anchor bolts are fixedly connected to the steel mesh through the reinforcing members, so as to enhance the connection reliability between the anchor bolts and the steel mesh, and further improve the overall stability of the support structure.

[0021] In an alternative embodiment, a shotcrete surface layer is provided on the steel mesh.

[0022] Advantageous effects: By providing the shotcrete surface layer, it is convenient to prevent the soil from loosening, which is beneficial to enhancing the stability of the slope and facilitating the smooth progress of the construction.

[0023] In an alternative embodiment, the thickness of the shotcrete surface layer is H, where 50mm ≤ H ≤ 100mm. Description of the Drawings

[0024] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is the top view of the slope tower crane foundation structure of the present utility model;

[0026] Figure 2 It is the side sectional view of the slope tower crane foundation structure of the present utility model;

[0027] Figure 3 It is the front view of the partially cut-open support structure of the present utility model;

[0028] Figure 4 It is the side view of the partial support structure of the present utility model;

[0029] Figure 5 It is Figure 4 the partial enlarged view at A in

[0030] Figure 6 It is the side view of the connection of the anchor rod, connecting piece and reinforcing rib of the present utility model;

[0031] Figure 7 It is the front view of the connection of the anchor rod, connecting piece and reinforcing rib of the present utility model;

[0032] Figure 8 It is the front view of the connection between the anchor rod and the bracket of the present utility model;

[0033] Figure 9 It is the front view of the bracket of the present utility model.

[0034] Explanation of reference numerals:

[0035] 1. Slope; 101. Slope top; 102. Slope bottom; 103. Slope surface; 2. Foundation platform; 3. Pile foundation; 4. Exterior basement wall; 5. Steel mesh; 6. Anchor rod; 7. Reinforcing rib; 8. Connecting piece; 9. Bracket; 10. Pure cement slurry; 11. Shotcrete surface layer. Specific embodiments

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0040] When there is a conflict between the slope and the tower crane foundation, the common practice is to place the tower crane foundation at the bottom of the slope and excavate and slope the surrounding soil. However, this method will cause the need to build bricks around the tower crane during the later backfilling, resulting in a deep pit at the tower crane position, posing a safety hazard. During the construction process, the slope stability is also an important consideration. The slope stability is affected by various factors such as the slope, the physical and mechanical properties of the soil or rock, and rainfall. If the slope stability is insufficient, it may lead to disasters such as landslides and collapses, posing a serious threat to the project and personnel safety.

[0041] The following combines Figures 1 to 9 , and describes the embodiments of the present utility model.

[0042] According to the embodiments of the present utility model, a slope tower crane foundation structure is provided, including:

[0043] The slope 1 includes a slope top 101, a slope bottom 102 and a slope surface 103;

[0044] The foundation platform 2 is arranged on the slope top 101, and the spacing between the foundation platform 2 and the edge of the slope top 101 close to the slope bottom 102 is L, where L≥2m;

[0045] The pile foundation 3 is located below the foundation platform 2 and is fixedly connected to the foundation platform 2. The pile foundation 3 penetrates into the slope 1 to enable the foundation platform 2 to have sufficient bearing capacity to support and fix the tower crane on the slope top 101.

[0046] For the slope tower crane foundation structure provided in this embodiment, the foundation platform is fixedly arranged on the slope top through the pile foundation, so as to facilitate the support and fixation of the tower crane on the slope top; thereby avoiding the situation when the foundation platform is arranged at the slope bottom: earth excavation and slope setting are required at the slope bottom in the early stage, and bricklaying is required around the tower crane during backfilling in the later stage; such an arrangement is beneficial to reducing the workload; and it can avoid the formation of deep pits at the position of the tower crane foundation during backfilling, resulting in potential safety hazards during use.

[0047] Specifically, a slope 1 is formed on the outdoor side of the basement exterior wall 4, and the foundation platform 2 is suitable for carrying the tower crane. As a preferred implementation form, the foundation platform 2 is arranged horizontally. The number of the pile foundations 3 includes at least one and extends along the gravity direction. At least part of the pile foundation 3 penetrates into the soil from the slope top 101 downward, and the top of the pile foundation 3 is fixedly connected to the foundation platform 2, so as to facilitate the support and fixation of the foundation platform 2 on the slope top 101, and further support and fix the tower crane on the slope top 101.

[0048] The spacing between the foundation platform 2 and the edge of the slope top 101 close to the slope bottom 102 is greater than or equal to 2m, so that there is a certain distance between the foundation platform 2 and the edge of the slope top 101, thereby avoiding the foundation platform 2 being too close to the edge of the slope top 101, and collapsing the edge area of the slope top 101 under its own weight and the load of the tower crane, resulting in landslides or collapses of the slope 1, and further threatening the project and personnel safety. As a feasible implementation form, the spacing between the edge of the foundation platform 2 close to the slope bottom 102 and the edge of the slope top 101 close to the slope bottom 102 is 2.5m.

[0049] In some embodiments, as shown in Figures 1 to 9 a slope surface 103 is formed between the slope top 101 and the slope bottom 102, and a support structure is arranged on the slope surface 103.

[0050] For the slope tower crane foundation structure provided in this embodiment, a support structure is arranged on the slope surface 103 to enhance the stability of the slope 1 and reduce the possibility of landslides or collapses.

[0051] Specifically, along the direction from the slope top 101 towards the slope bottom 102, the slope surface 103 inclines towards the basement exterior wall. When the angle between the slope surface 103 and the horizontal plane is relatively large, landslides or collapses are likely to occur on the slope 1. Setting the support structure on the slope surface 103 is beneficial to enhancing the stability of the slope 1 and reducing the possibility of landslides or collapses.

[0052] In some embodiments, as shown in Figures 1 to 9 the support structure includes a steel mesh 5 and anchor bolts 6. The steel mesh 5 is laid on the slope surface 103. Part of the anchor bolts 6 penetrates into the interior of the slope 1, and part of the anchor bolts 6 is exposed on the slope surface 103. The exposed part of the anchor bolts 6 is fixedly connected to the steel mesh 5.

[0053] Specifically, the number of the steel meshes 5 includes at least one layer, and the exposed part of the anchor bolts 6 forms a fixed connection with each layer of the steel mesh 5. When there are multiple layers of the steel mesh 5, a connecting piece 8 is fixedly connected to the outer peripheral wall of the anchor bolts 6 between adjacent two layers of the steel mesh 5. The side wall of the connecting piece 8 is fixedly connected to the outer peripheral wall of the anchor bolts 6, and its two ends are respectively fixedly connected to the adjacent two layers of the steel mesh 5, thereby enhancing the integrity of the connection between the anchor bolts 6 and the multiple layers of the steel mesh 5. The connecting piece 8 includes a connecting rod and a connecting plate. As a feasible implementation form, the steel mesh 5 includes a plurality of longitudinal steel bars extending along the slope direction of the slope surface 103 and a plurality of transverse steel bars extending along the horizontal direction. The spacing between adjacent two longitudinal steel bars and adjacent two transverse steel bars is the same. The included angle between the axial direction of the anchor bolts 6 after penetrating into the slope 1 and the horizontal direction is 15° to 30°. As a feasible implementation form, the anchor bolts 6 are inserted into the slope 1 at an angle of 20° with the horizontal direction along their axes.

[0054] In some embodiments, as shown in Figures 1 to 9 the slope 1 is formed with anchor holes corresponding to the anchor bolts 6. Part of the anchor bolts 6 penetrates into the interior of the anchor holes, and the gap between the outer peripheral wall of the anchor bolts 6 and the inner wall of the anchor holes is suitable for filling with neat cement slurry 10.

[0055] For the slope tower crane foundation structure provided in this embodiment, filling the gap between the outer peripheral wall of the anchor bolts 6 and the inner wall of the anchor holes with neat cement slurry 10 is beneficial to enhancing the connection stability between the anchor bolts 6 and the slope 1.

[0056] Specifically, the inner diameter of the anchor holes is larger than the outer diameter of the anchor bolts 6, so as to form a gap between the outer peripheral wall of the anchor bolts 6 and the inner wall of the anchor holes and fill the gap with neat cement slurry 10. Preferably, the water-cement ratio of the neat cement slurry 10 is 0.45 - 0.55. After the neat cement slurry 10 solidifies, it is beneficial to enhancing the installation stability of the anchor bolts 6 in the anchor holes.

[0057] In some embodiments, as shown in Figures 1 to 9 the anchor holes do not collide with the pile foundation 3 and the foundation platform 2.

[0058] The slope tower crane foundation structure provided in this embodiment avoids the pile foundation 3 and the foundation platform 2 when arranging the anchor holes, so as to avoid damaging the structures of the pile foundation 3 and the foundation platform 2.

[0059] Specifically, by avoiding the pile foundation 3 and the foundation platform 2 when arranging the anchor holes, it is convenient to prevent the structures of the pile foundation 3 and the foundation platform 2 from being damaged when drilling the anchor holes and inserting the anchor rods 6, and further affecting the support stability of the foundation platform 2 for the tower crane.

[0060] In some embodiments, as shown in Figures 1 to 9 a bracket 9 is fixedly connected to the outer peripheral wall of the anchor rod 6, and the bracket 9 is located inside the anchor hole.

[0061] The slope tower crane foundation structure provided in this embodiment fixedly connects the bracket 9 to the outer peripheral wall area of the anchor rod 6 corresponding to the anchor hole, so as to increase the acting area between the anchor rod 6 and the pure cement slurry 10, thereby improving the stability and reliability of the anchor rod 6 in the anchor hole.

[0062] Specifically, multiple groups of brackets 9 are arranged at intervals along the axial direction of the anchor rod 6. Each group of brackets 9 includes at least two, and multiple brackets 9 in the same group are equidistantly spaced around the axis of the anchor rod 6. The bracket 9 includes two straight parts arranged at intervals along the axial direction of the anchor rod 6, and an arc part fixedly connected between the two straight parts. The arc part bends towards the direction away from the axis of the anchor rod 6. Among them, the straight part includes a straight rod and a straight plate, and the arc part includes an arc rod and an arc plate. The straight part is fixedly connected to the outer peripheral wall of the anchor rod 6, so that the arc part is fixedly connected to the anchor rod 6. Arranging the bracket 9 between the anchor rod 6 and the pure cement slurry 10 can increase the acting area between the anchor rod 6 and the solidified pure cement slurry 10. When the anchor rod 6 has a movement trend along its axial direction, in addition to the friction and adhesion force between the pure cement slurry 10 and the anchor rod 6, there is also the abutting force between the bracket 9 and the solidified pure cement slurry 10, thereby enhancing the stability and reliability of the installation of the anchor rod 6 in the anchor hole.

[0063] In some embodiments, as shown in Figures 1 to 9 the length of the anchor rod 6 is S, where 6m ≤ S ≤ 10m.

[0064] Specifically, the length of the anchor rod 6 ranges from 6m to 10m to avoid the inconvenience of operation due to the overlong anchor rod 6, and at the same time avoid the poor anchoring effect due to the too short anchor rod 6. As a preferred implementation form, the length of the anchor rod 6 is 9m.

[0065] In some embodiments, as shown in Figures 1 to 9 the number of the anchor rods 6 includes multiple, and the multiple anchor rods 6 are spaced along the slope surface 103; multiple reinforcing ribs 7 are fixedly connected to the steel mesh 5, and the reinforcing ribs 7 are fixedly connected to the multiple anchor rods 6.

[0066] For the slope tower crane foundation structure provided in this embodiment, multiple anchor bolts 6 are fixedly connected to the steel mesh 5 through reinforcing ribs 7, so as to enhance the connection reliability between the anchor bolts 6 and the steel mesh 5, and further improve the overall stability of the support structure.

[0067] Specifically, multiple rows of anchor bolts 6 are arranged at intervals along the slope direction of the slope surface 103, and multiple anchor bolts 6 are arranged at intervals in each row. The distance between adjacent rows and the distance between adjacent two anchor bolts 6 in each row are both M, where 1m ≤ M ≤ 2m. As a preferred implementation form, M is taken as 1.5m. The reinforcing rib 7 includes a U-shaped steel bar, a straight bar-shaped steel bar, and an L-shaped steel bar. While one reinforcing rib 7 is fixedly connected to the steel mesh 5, it is fixedly connected to multiple anchor bolts 6 in the same row or different rows, thereby enhancing the overall stability of the connection between the multiple anchor bolts 6 and the steel mesh 5.

[0068] As a preferred implementation form, at the connection between each anchor bolt 6 and the steel mesh 5, two reinforcing ribs 7 are fixedly connected. Each reinforcing rib 7 is fixedly connected to the reinforcing rib 7 at another steel mesh 5 adjacent to it through a connector 8, thereby enhancing the integrity of the support structure.

[0069] In some embodiments, as shown in Figures 1 to 9 a shotcrete surface layer 11 is provided on the steel mesh 5.

[0070] For the slope tower crane foundation structure provided in this embodiment, by providing the shotcrete surface layer 11, it is convenient to prevent the soil from loosening, which is beneficial to enhancing the stability of the slope 1 and facilitating the smooth progress of construction.

[0071] Specifically, the shotcrete surface layer 11 covers the steel mesh 5 and has a certain thickness of the concrete protective layer. After the shotcrete surface layer 11 is formed, it is beneficial to enhance the stability of the slope 1 and strengthen the connection between the anchor bolts 6 and the steel mesh 5.

[0072] In some embodiments, as shown in Figures 1 to 9 the thickness of the shotcrete surface layer 11 is H, where 50mm ≤ H ≤ 100mm.

[0073] Specifically, by making the thickness of the shotcrete surface layer 11 be 50mm - 100mm, it is to prevent the thickness of the shotcrete surface layer 11 from being too thin to play a role in stabilizing and strengthening, and to prevent the thickness of the shotcrete surface layer 11 from being too thick to increase the construction cost.

[0074] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. Although the embodiments of the present invention are described in conjunction with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A foundation structure for a tower crane on a slope, characterized in that, Comprising: A slope (1), including a slope top (101), a slope bottom (102), and a slope surface (103); A foundation platform (2) is provided on the slope top (101). The distance between the foundation platform (2) and the edge of the slope top (101) near the slope bottom (102) is L, where L ≥ 2m; A pile foundation (3) is located below the foundation platform (2) and is fixedly connected to the foundation platform (2). The pile foundation (3) penetrates into the slope (1) to enable the foundation platform (2) to have sufficient bearing capacity to support and fix a tower crane on the slope top (101).

2. The slope tower crane foundation structure according to claim 1, characterized in that A slope surface (103) is formed between the slope top (101) and the slope bottom (102), and a support structure is provided on the slope surface (103).

3. The slope tower crane foundation structure according to claim 2, characterized in that, The support structure includes a steel mesh (5) and anchor bolts (6). The steel mesh (5) is laid on the slope surface (103). Part of the anchor bolts (6) penetrates into the slope (1), and part of the anchor bolts (6) is exposed on the slope surface (103). The exposed part of the anchor bolts (6) is fixedly connected to the steel mesh (5).

4. The slope tower crane foundation structure according to claim 3, characterized in that Anchor holes are formed in the slope (1) corresponding to the anchor bolts (6). Part of the anchor bolts (6) is inserted into the anchor holes. The gap between the outer peripheral wall of the anchor bolts (6) and the inner wall of the anchor holes is suitable for filling with pure cement mortar (10).

5. The slope tower crane foundation structure according to claim 4, characterized in that, The anchor holes do not collide with the pile foundation (3) and the foundation platform (2).

6. The slope tower crane foundation structure according to claim 4, characterized in that, A bracket (9) is fixedly connected to the outer peripheral wall of the anchor bolts (6), and the bracket (9) is located inside the anchor holes.

7. The slope tower crane foundation structure according to claim 3, characterized in that The length of the anchor bolts (6) is S, where 6m ≤ S ≤ 10m.

8. The slope tower crane foundation structure according to claim 3, characterized in that The number of the anchor bolts (6) includes multiple ones, and the multiple anchor bolts (6) are distributed at intervals along the slope surface (103); multiple reinforcing bars (7) are fixedly connected to the steel mesh (5), and the reinforcing bars (7) are fixedly connected to the multiple anchor bolts (6).

9. The slope tower crane foundation structure according to any one of claims 3-6, characterized in that, A shotcrete surface layer (11) is provided on the steel mesh (5).

10. The slope tower crane foundation structure according to claim 9, characterized in that, The thickness of the shotcrete surface layer (11) is H, where 50mm ≤ H ≤ 100mm.

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