Fabricated arched retaining wall

Abstract

The utility model relates to the technical field of civil engineering application, and discloses an assembly type arched retaining wall which comprises a wall panel and a bottom plate. The wall panel is in a broken line symmetrical shape, and a reserved hole is formed in one end of the middle portion of the wall panel. One ends of the wall panels are fixed to the bottom plate, the other ends of the wall panels are fixed to the bottom plate, two tenons are fixed to the ends, away from the bottom plate, of the wall panels, the width of the tenons is slightly smaller than half of the width of the preformed holes, and the two tenons can be inserted into the preformed holes to be limited. The two tenons of the upper-stage wall panel are inserted into the preformed holes between the two adjacent wall panels of the lower-stage wall panel, so that the retaining walls of all stages are assembled and connected; according to the assembled retaining wall, the tenons and the preformed holes of the retaining wall are assembled and connected, so that tight fixed connection between the upper retaining wall and the lower retaining wall is realized, and the integrity of the assembled retaining wall is improved; the front of the bottom of the retaining wall is not covered by the concrete slab and is a natural soil filling surface, plants can be planted in the area, and the attractive and environment-friendly effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering applications, and particularly relates to an assembled arched retaining wall. Background Technique

[0002] A retaining wall refers to a structure that supports the subgrade fill or the hillside soil mass and prevents the fill or the soil mass from deforming and becoming unstable. There are usually different forms such as gravity retaining walls, anchored retaining walls, thin-walled retaining walls, reinforced earth retaining walls, pile-slab retaining walls, crib retaining walls, etc. With the development of construction technology, retaining walls are gradually developing towards assembly.

[0003] However, the prior art has the following defects:

[0004] The assembled retaining wall should not only meet the needs of prefabrication, transportation, and hoisting construction, but also satisfy the requirements of force, deformation, and stability. In particular, the vertical retaining wall bears large shear forces and bending moments, resulting in relatively large cross-sectional dimensions of the reinforced concrete. Content of the Utility Model

[0005] To solve the technical problem that the vertical retaining wall bears large shear forces and bending moments, resulting in relatively large cross-sectional dimensions of the reinforced concrete, the utility model provides an assembled arched retaining wall.

[0006] The utility model is realized by adopting the following technical scheme: an assembled arched retaining wall, comprising a wall panel and a bottom plate; the wall panel is in a broken-line symmetric shape, and a reserved hole is opened at one end of the middle part of the wall panel; the other end of the wall panel is fixed to the bottom plate, and two convex tenons are fixed at one end of the wall panel far from the bottom plate. The width of the convex tenon is slightly less than half of the width of the reserved hole, and the two convex tenons can be inserted into the reserved hole for positioning. During construction, the wall panels are placed side by side, and the two convex tenons of the upper-level wall panel are inserted into the reserved holes between two adjacent wall panels of the lower level, thereby realizing the assembly connection of each level of retaining wall;

[0007] An insertion and assembly mechanism, the insertion and assembly mechanism comprising a first mounting member, an insertion plate, a second mounting member, a slot, a socket, and an elastic unit. The first mounting member is fixed to the convex tenon by bolts, the second mounting member is fixed in the socket by bolts, the slot is opened in the second mounting member, and the insertion plate is fixed in the first mounting member by the elastic unit, and the insertion plate can be inserted into the slot.

[0008] Through the above technical scheme, the height of the convex tenon is slightly less than the height of the reserved hole, and the distance between the outer sides of the two convex tenons on the retaining wall is equal to the center distance between two adjacent reserved holes when two precast retaining walls are placed side by side.

[0009] The length of the middle part of the broken-line symmetric wall panel is relatively small, the lengths of the two side parts are relatively large, and the included angle between the middle part and the two side parts takes values between 110° and 150°.

[0010] The cam is a steel structure, which is cast together with the reinforced concrete slab of the wall panel. The four walls of the reserved hole are steel structures, which are cast together with the reinforced concrete slab of the wall panel.

[0011] After the multi-level assembly construction of the wall panels is completed, plants are planted in front of the bottom of the wall panels at all levels except the bottom wall panel.

[0012] The wall panels and the crown beams can be assembled quickly and stably by means of the plug-in assembly mechanism. Only after the bottom wall panels are fixed can other wall panels be installed on the wall panels more stably.

[0013] The bottom plate is a load-relief plate, and the deadweight of the fill on the wall panel helps to improve the anti-overturning stability of the wall panel.

[0014] As a further improvement of the above solution, the elastic unit includes a spring one, one end of two springs one are welded to the plug plate, and the other ends of the two springs one are welded in a mounting member one.

[0015] According to the above technical solution, by setting two springs 1, when the mounting member 2 presses the plug board so that the cam can enter the socket, the spring 1 will be compressed to make the plug board enter the mounting member 1. And the plug board can be pushed into the slot, so that the cam can be stably located in the socket.

[0016] As a further improvement of the above scheme, a supporting mechanism is also provided on the wall panel, and the supporting mechanism includes a third mounting member, a contact plate, an embedded unit, a deformation unit and a sliding unit. The third mounting member is fixed to the wall panel by bolts, and the contact plate is arranged in the third mounting member through the deformation unit.

[0017] According to the above technical solution, by installing the mounting member 3, the contact plate in the mounting member 3 can be movable to support the wall panel of the upper layer, so that the contact area between the wall panel of the upper layer and the wall panel of the lower layer is larger, and the stability of the installation of the wall panel of the upper layer is enhanced.

[0018] As a further improvement of the above solution, the deformation unit includes a second spring, one end of two of the second springs are welded to the contact plate, and the other ends of the two second springs are welded in a third mounting member.

[0019] Through the above technical solution, the two springs 2 can not only support the wall panel, so that the wall panel located on the upper layer can be installed stably, but also give the wall panel a certain deformation force, thereby expanding the settlement range of the wall panel.

[0020] As a further improvement of the above solution, the sliding unit includes ball bearings, and a plurality of the ball bearings are evenly and rollingly embedded in the contact plate, and all the ball bearings are in contact with the wall panel.

[0021] Through the above technical solution, by providing a plurality of ball bearings, when inserting the male tenon into the reserved hole, it can be made smoother.

[0022] As a further improvement of the above solution, the embedded unit includes a pile foundation, a capping beam and a backing plate. The capping beam and the backing plate are fixedly connected, and a plurality of the pile foundations are fixedly arranged on the capping beam at equal distances, and a plurality of the pile foundations can be inserted into the soil.

[0023] Through the above technical solution, by inserting the pile foundation into the ground, on the one hand, it bears part of the vertical load of the upper fill soil and the wall panel. On the other hand, it prevents the overall sliding failure of the fill soil slope, and the setting of the capping beam and the backing plate can stably install the wall panel.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0025] First, through the assembly connection between the male tenon of the retaining wall and the reserved hole, the upper and lower levels of retaining walls are tightly and fixedly connected, improving the integrity of the prefabricated retaining wall; the front of the bottom of the retaining wall is not covered by the concrete slab and is the natural fill soil surface, and plants can be planted in this area to achieve the effects of beauty and environmental protection.

[0026] Second, through the action of the insertion and assembly mechanism and the support mechanism, the bottom wall panel can be stably installed, ensuring the stability of the upper wall panel. At the same time, under the action of the support mechanism, when the soil degrades during actual use and cannot stably support the upper wall panel, the situation of the wall panel and the male tenon breaking can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. 24 is a three-dimensional structure schematic diagram of assembling the third-layer retaining wall of a prefabricated arched retaining wall provided in Embodiment 1 of the present utility model and filling and constructing to its top;

[0028] Figure 2 FIG. 28 is a front view structure schematic diagram of a prefabricated arched retaining wall after completion;

[0029] Figure 3 FIG. 32 is a three-dimensional structure schematic diagram of the construction pile foundation of a prefabricated arched retaining wall;

[0030] Figure 4 FIG. 36 is a three-dimensional structure schematic diagram of the construction capping beam and backing plate of a prefabricated arched retaining wall;

[0031] Figure 5 FIG. 40 is a three-dimensional structure schematic diagram of assembling the bottom-layer retaining wall of a prefabricated arched retaining wall;

[0032] Figure 6 It is a three-dimensional structure schematic diagram of the first retaining wall of an assembled arch-shaped retaining wall and the filling construction up to its top;

[0033] Figure 7 It is a three-dimensional structure schematic diagram of the second retaining wall of an assembled arch-shaped retaining wall and the filling construction up to its top;

[0034] Figure 8 It is a three-dimensional structure schematic diagram of the mutual assembly of the retaining walls of an assembled arch-shaped retaining wall;

[0035] Figure 9 It is a rear view three-dimensional structure schematic diagram of the retaining wall of an assembled arch-shaped retaining wall;

[0036] Figure 10 It is a side view sectional structure schematic diagram of the retaining wall of an assembled arch-shaped retaining wall;

[0037] Figure 11 It is of an assembled arch-shaped retaining wall Figure 10 The enlarged structure schematic diagram at C in;

[0038] Figure 12 It is of an assembled arch-shaped retaining wall Figure 10 The enlarged structure schematic diagram at D in;

[0039] Main symbol description:

[0040] 1. Wall panel; 2. Convex tenon; 3. Reserved hole; 4. Bottom plate; 5. Pile foundation; 6. Capping beam; 7. Backing plate; 8. Plant; 9. Mounting part one; 10. Spring one; 11. Insertion plate; 12. Mounting part two; 13. Slot; 14. Mounting part three; 15. Spring two; 16. Contact plate; 17. Ball; 18. Socket; A. Original ground surface; B. Filling surface. Specific implementation manners

[0041] Next, in combination with the attached drawings and specific implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, any combination of the following described embodiments or technical features can form a new embodiment.

[0042] Embodiment 1:

[0043] Please combine with Figure 1-11, A prefabricated arched retaining wall in this embodiment includes a wall panel 1 and a bottom plate 4; the wall panel 1 is in a broken-line symmetric shape, and a reserved hole 3 is provided at one end of the middle part of the wall panel 1; the other end of the wall panel 1 is fixed to the bottom plate 4, and two convex tenons 2 are fixed at one end of the wall panel 1 away from the bottom plate 4. The width of the convex tenon 2 is slightly less than half of the width of the reserved hole 3, so that the two convex tenons 2 can be inserted into the reserved hole 3 for positioning. During construction, the wall panels 1 are placed side by side, and the two convex tenons 2 of the upper-level wall panel 1 are inserted into the reserved holes 3 between two adjacent lower-level wall panels 1, thereby realizing the assembly connection of each level of retaining wall;

[0044] An insertion and assembly mechanism, which includes a first mounting part 9, an insertion plate 11, a second mounting part 12, a slot 13, a socket 18 and an elastic unit. The first mounting part 9 is fixed to the convex tenon 2 by bolts, the second mounting part 12 is fixed in the socket 18 by bolts, the slot 13 is opened in the second mounting part 12, and the insertion plate 11 is fixed in the first mounting part 9 by the elastic unit, and the insertion plate 11 can be inserted into the slot 13.

[0045] The elastic unit includes a first spring 10. One ends of the two first springs 10 are both welded to the insertion plate 11, and the other ends of the two first springs 10 are both welded inside the first mounting part 9.

[0046] Embodiment 2:

[0047] Combined with Figure 1 - The insertion plate 11, based on Embodiment 1, the further improvement in this embodiment is that: a support mechanism is further provided on the wall panel 1, and the support mechanism includes a third mounting part 14, a contact plate 16, a pre-embedded unit, a deformation unit and a sliding unit. The third mounting part 14 is fixed to the wall panel 1 by bolts, and the contact plate 16 is arranged in the third mounting part 14 through the deformation unit.

[0048] The deformation unit includes a second spring 15. One ends of the two second springs 15 are both welded to the contact plate 16, and the other ends of the two second springs 15 are both welded inside the third mounting part 14.

[0049] The sliding unit includes balls 17. A plurality of balls 17 are evenly spaced and rollingly embedded on the contact plate 16, and the balls 17 are all in contact with the wall panel 1.

[0050] The pre-embedded unit includes a pile foundation 5, a capping beam 6 and a backing plate 7. The capping beam 6 and the backing plate 7 are fixedly connected, and a plurality of pile foundations 5 are evenly spaced and fixed on the capping beam 6, and the plurality of pile foundations 5 can be inserted into the soil.

[0051] The assembling method of a prefabricated arched retaining wall in this application is as follows:

[0052] (1) Level the site, and construct the pile foundation 5 at the position where the retaining wall is to be constructed, as Figure 3 shown.

[0053] On the one hand, the pile foundation 5 bears part of the vertical load of the upper fill and the retaining wall, and on the other hand, it prevents the overall sliding failure of the fill slope.

[0054] (2) Construct the capping beam 6 and the backing plate 7 at the top of the pile foundation, as Figure 4 shown. The width of the backing plate 7 should be such that when the retaining wall presses on the backing plate, the vertical projection of the wall panel 1 is inside the backing plate 7.

[0055] (3) Arrange the precast retaining walls in sequence on the backing plate 7. Use bolts to install the first mounting part 9 and the second mounting part 12 in the male tenons 2 and the sockets 18 respectively. Then pick up the wall panel 1 and insert the male tenons 2 into the sockets 18. When the insertion plate 11 contacts the second mounting part 12, the insertion plate 11 will be pressed into the first mounting part 9, and the first spring 10 will be compressed, causing the insertion plate 11 to slide on the second mounting part 12 and enter the socket 18. When the insertion plate 11 and the slot 13 are completely aligned, under the rebound of the first spring 10, the insertion plate 11 can be pushed into the slot 13 for positioning. At this time, the wall panel 1 and the capping beam 6 are in contact, and the installation and fixation of the wall panel 1 and the capping beam 6 can be completed. Under the action of subsequent construction loads, there will be no mutual movement and dislocation, as Figure 5 shown. The front end of the retaining wall should abut against the capping beam 6 on the backing plate 7.

[0056] (4) Carry out earth filling at the back of the retaining wall according to relevant filling requirements until it reaches the top position of this level of retaining wall, as Figure 6 shown.

[0057] (5) When assembling the upper-level retaining wall, first use bolts to install the third mounting part 14 on the wall panel 1 below the reserved hole 3, and then insert the two male tenons 2 of the retaining wall into the adjacent reserved holes 3 between two adjacent lower-level retaining walls. At the same time, the wall panel 1 will contact the ball 17. During the insertion process, the ball 17 will roll, and the contact plate 16 will be pressed into the third mounting part 14, slightly compressing the second spring 15. Carry out earth filling according to the method in step (4) until it reaches the top position of this level of retaining wall, as Figure 7 shown.

[0058] (6) Repeat step (5) until all the retaining walls mentioned in the design are constructed.

[0059] (7) After the assembly and filling construction of each level of retaining wall are completed, plant plants 8 in front of the bottom of other levels of retaining walls except the bottommost retaining wall, as Figure 1 to Figure 2 shown. The front of the bottom of the retaining wall is not covered by the concrete slab and is the natural fill surface. Plants 8 can be planted in this area to achieve the effects of beauty and environmental protection.

[0060] In this article, the wall panel 1, the male tenons 2, the reserved holes 3 and the bottom plate 4 are combined and described as the retaining wall.

[0061] The above embodiments are only the preferred embodiments of the present utility model, and the protection scope of the present utility model cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model shall fall within the protection scope claimed by the present utility model.

Claims

1. An assembled arch retaining wall, characterized in that: include: Wall panel and bottom plate; the wall panel is in a symmetrical shape, and a reserved hole is opened at one end of the middle part of the wall panel; the other end of the wall panel is fixed to the bottom plate, and two cams are fixed at one end of the wall panel away from the bottom plate, and the width of the cams is slightly smaller than half of the width of the reserved hole so that the two cams can be inserted into the reserved holes for limiting. During construction, the wall panels are placed side by side, and the two cams of the upper wall panel are inserted into the reserved holes between two adjacent wall panels of the lower level, thereby realizing the assembly connection of retaining walls at all levels; The plug-in assembly mechanism includes a mounting member 1, a plug-in plate, a mounting member 2, a slot, a socket and an elastic unit. The mounting member 1 is fixed to the cam by bolts, the mounting member 2 is fixed in the socket by bolts, the slot is provided in the mounting member 2, the plug-in plate is fixed in the mounting member 1 by the elastic unit, and the plug-in plate can be plugged in the slot.

2. The assembled arch retaining wall according to claim 1, characterized in that: The elastic unit comprises a spring 1, one end of two springs 1 are welded on the plug plate, and the other ends of the two springs 1 are welded in a mounting member 1.

3. The assembled arch retaining wall according to claim 1, characterized in that: The wall panel is also provided with a supporting mechanism, which includes a third mounting member, a contact plate, an embedded unit, a deformation unit and a sliding unit. The third mounting member is fixed to the wall panel by bolts, and the contact plate is arranged in the third mounting member through the deformation unit.

4. The assembled arch retaining wall according to claim 3, characterized in that: The deformation unit comprises a second spring, one end of each of the two second springs is welded on the contact plate, and the other end of each of the two second springs is welded in a third mounting member.

5. The assembled arch retaining wall according to claim 3, characterized in that: The sliding unit comprises balls, and a plurality of the balls are evenly rolled and embedded on the contact plate, and the balls are all in contact with the wall panel.

6. The assembled arch retaining wall according to claim 3, characterized in that: The embedded unit comprises a pile foundation, a crown beam and a pad, the crown beam and the pad are fixedly connected, a plurality of pile foundations are fixed on the crown beam at equal distances, and the plurality of pile foundations can be inserted into the soil.

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