CN212641507U

CN212641507U - Steel formwork for cast-in-situ gravity retaining wall

Info

Publication number: CN212641507U
Application number: CN202021130511.2U
Authority: CN
Inventors: 谢凯; 马继春
Original assignee: Wuxi Navigation Project Co ltd
Current assignee: Wuxi Navigation Project Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-02
Anticipated expiration: 2030-06-17

Abstract

The utility model belongs to the technical field of the technique of retaining engineering and specifically relates to a steel form for cast-in-place gravity retaining wall is related to, it includes first panel, second panel and the end closure board that sets up in pairs, first panel is located one side of second panel dorsad soil body, the slope of second panel top dorsad soil body, wear to be equipped with the diagonal rod on first panel and the second panel, the cover is equipped with first nut and second nut in pairs on the diagonal rod, first nut offsets with one side of first panel dorsad second panel, second nut offsets with one side of second panel dorsad first panel, still enclose the purlin around first panel, at least one in the second panel and two end closure board bottom outsides. The utility model discloses have and strengthen the template bottom, improve the pressure-bearing upper limit of template bottom, reduce the possibility of leaking thick liquid, guarantee the effect of the shaping quality of retaining wall.

Description

Steel formwork for cast-in-situ gravity retaining wall

Technical Field

The utility model belongs to the technical field of the technique of fender engineering and specifically relates to a steel form for cast-in-place gravity retaining wall is related to.

Background

The gravity type retaining wall resists the lateral pressure of a soil body by the self weight of a wall body, and is one of the commonly used retaining walls in China. The gravity type retaining wall can be built by using block stones, sheet stones and concrete precast blocks as brickworks, can also be formed by integrally pouring sheet stone concrete and concrete, and is widely applied to the projects of railways, highways, water conservancy projects, ports, navigation channels, mines and the like in China.

The ability that gravity type retaining wall resisted the soil body lateral pressure is directly relevant rather than the dead weight, and in order to guarantee that the retaining wall has sufficient overall stability and structural strength, the volume of retaining wall is often great, and the work load of building the brickwork by one block is also big. In contrast, the construction steps for cast-in-place construction of the retaining wall are simpler.

In the construction process of the cast-in-place retaining wall, the support of the template is one of the main factors influencing the forming quality of the retaining wall, and is the foundation for the smooth forming of the retaining wall. Because the concrete has certain slump before solidifying, so the template can receive great lateral pressure, and the nearer ground, the more the pressure that the template received is big. Considering the huge volume of the gravity retaining wall, the pressure applied to the corresponding template is far higher than the stress applied to the template used when a common wall body is poured. The common template structure is difficult to resist the pressure, and particularly, the slurry leakage condition is easy to occur at the bottom of the template with larger lateral pressure, so that the forming quality of the retaining wall is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a steel form for cast-in-place gravity type retaining wall, it has strengthens the template bottom, improves the pressure-bearing upper limit of template bottom, reduces the possibility of leaking thick liquid, guarantees the effect of the shaping quality of retaining wall.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a steel form for cast-in-place gravity retaining wall, includes first panel, second panel and the head board that sets up in pairs, first panel is located one side of second panel dorsad soil body, the slope of second panel top dorsad soil body wears to be equipped with the diagonal tension pole on first panel and the second panel, the cover is equipped with first nut and second nut in pairs on the diagonal tension pole, first nut offsets with one side that first panel dorsad second panel, second nut offsets with one side that second panel dorsad first panel, still includes around enclosing purlin together at least in the outside of first panel, second panel and two head board bottoms.

Through adopting above-mentioned technical scheme, enclose the purlin around the bottom at first panel, second panel and two head boards, the plane shape when making the template keep the equipment strengthens the template bottom, improves the pressure-bearing upper limit of template bottom, reduces the possibility of leaking thick liquid, guarantees the shaping quality of retaining wall.

The present invention may be further configured in a preferred embodiment as: the first panel is provided with a plurality of first transverse ribs on one side back to the second panel, the first transverse ribs are arranged along the length direction of the first panel, the first transverse ribs are arranged along the width direction of the first panel, a plurality of first vertical ribs are arranged on one side back to the first panel, the first vertical ribs are arranged along the width direction of the first panel, the first vertical ribs are arranged along the length direction of the first panel, the second panel is provided with a plurality of second transverse ribs on one side back to the first panel, the second transverse ribs are arranged along the length direction of the second panel, the second transverse ribs are arranged along the width direction of the second panel, one side back to the second panel is provided with a plurality of second vertical ribs, the second vertical ribs are arranged along the width direction of the second panel, the second vertical ribs are arranged along the length direction of the second panel, the opposite pull rods penetrate through the first vertical ribs and the second vertical ribs, the first nuts are abutted against the first panel through the first transverse ribs and the first transverse ribs, the second nut abuts against the second panel through the second vertical rib and the second transverse rib.

Through adopting above-mentioned technical scheme, first panel and second panel mainly rely on the support to pull rod, first nut and second nut when resisting concrete lateral pressure, set up first horizontal rib and first perpendicular rib, make the first nut disperse comparatively evenly to the holding power of first panel, and first panel non-deformable sets up second horizontal rib and second perpendicular rib, makes the second nut disperse comparatively evenly to the holding power of second panel, and second panel non-deformable.

The present invention may be further configured in a preferred embodiment as: the second vertical rib is provided with a support rod, the bottom end of the support rod is connected with the second vertical rib, the top end of the support rod is connected with a pressing bar, and the pressing bar abuts against the top end of the first panel.

Through adopting above-mentioned technical scheme, the second panel is in the one side that is close to the soil body, and the top inclines to the soil body dorsad, is difficult for appearing the condition of come-up, so will press the thick stick setting on the second panel through the bracing piece, utilize to press the thick stick to push down first panel top, prevent first panel come-up, improve template overall structure's stability, guarantee the shaping quality of retaining wall.

The present invention may be further configured in a preferred embodiment as: and trusses are respectively arranged on the opposite sides of the two end sealing plates.

Through adopting above-mentioned technical scheme, the truss structure has better bending resistance, sets up the truss at the head plate dorsal part, can support the head plate effectively, reduces the head plate and locates the possibility that rises the mould.

The present invention may be further configured in a preferred embodiment as: the end sealing plate is provided with a plurality of third transverse ribs towards one side of a corresponding truss, the third transverse ribs are arranged along the horizontal direction and are parallel to the end sealing plate, the third transverse ribs are arranged along the vertical direction, a third vertical rib is arranged on one side of the end sealing plate back to the third transverse ribs, the third vertical rib is arranged along the vertical direction, the third vertical rib is arranged along the length direction of the third transverse ribs, and the truss is abutted against the end sealing plate through the third vertical rib and the third transverse ribs.

Through adopting above-mentioned technical scheme, third cross rib and third vertical rib can disperse the holding power of truss to the end plate, make end plate non-deformable.

The present invention may be further configured in a preferred embodiment as: and the opposite sides of the two end sealing plates are respectively provided with a hanging ring, and a pull rope is arranged between the hanging rings for connection.

Through adopting above-mentioned technical scheme, the cable is held two head plates through rings, makes the head plate difficult for deviating from each other, reduces the head plate and locates the possibility that rises the mould.

The present invention may be further configured in a preferred embodiment as: the top ends of the first panel, the second panel and the head sealing plate are provided with protective railings.

Through adopting above-mentioned technical scheme, the rail guard can protect the staff, avoids the staff to fall from the template top in the work progress that vibrates.

The present invention may be further configured in a preferred embodiment as: the bottom of the first panel is bent back to the soil body.

By adopting the technical scheme, after the bottom of the first panel is bent back to the soil body, the molding chamfer is formed on one side of the bottom of the retaining wall back to the soil body, which is obtained by pouring, so that the stress at the position can be dispersed, and the lateral pressure resistance capability of the retaining wall is improved.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the bottom of the template is reinforced, so that the upper limit of the pressure bearing of the bottom of the template is improved, the possibility of slurry leakage is reduced, and the molding quality of the retaining wall is ensured;

2. the pressing bar can prevent the first panel from floating upwards, so that the stability of the whole structure of the template is improved, and the forming quality of the retaining wall is ensured;

3. the truss can support the end sealing plate effectively, and the possibility of the expansion die at the end sealing plate is reduced.

Drawings

Fig. 1 is a schematic structural view for embodying a first panel and a second panel in embodiment 1;

FIG. 2 is a schematic structural view for embodying the head plate in example 1;

fig. 3 is a schematic structural view for embodying the head plate in example 2.

In the figure, 1, a first panel; 2. a second panel; 3. a head sealing plate; 4. a pull rod is arranged; 5. enclosing purlins; 6. pressing the bar; 7. protecting the fence; 11. a first cross rib; 12. a first vertical rib; 21. a second cross rib; 22. a second vertical rib; 31. a truss; 32. a third cross rib; 33. a third vertical rib; 34. a hoisting ring; 35. a cable; 41. a first nut; 42. a second nut; 61. a support rod.

Detailed Description

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

Example 1:

referring to fig. 1 and 2, for the utility model discloses a steel form for cast-in-place gravity retaining wall, including first panel 1, second panel 2 and head board 3. Wherein, first panel 1 and second panel 2 all set up along the length direction of retaining wall, and first panel 1 is located one side that second panel 2 is back of the body. The end sealing plates 3 are vertical to the length direction of the retaining wall, and the end sealing plates 3 are arranged at two ends of the first panel 1 and the second panel 2 in pairs.

Referring to fig. 1, the bottom of the first panel 1 is bent away from the soil, and other areas of the first panel 1 are approximately vertical. The second panel 2 is wholly inclined, and the top end of the second panel 2 is close to the first panel 1. After the retaining wall is poured and cured, the retaining wall inclines towards one side of the soil body and needs to be backfilled with a soil layer or broken stones, and the retaining wall is back to the bottom forming chamfer at one side of the soil body, so that the structure is more stable.

Referring to fig. 1, twenty-five first transverse ribs 11 are laid on a side of the first panel 1 opposite to the second panel 2, each first transverse rib 11 is parallel to the length direction of the first panel 1, and the first transverse ribs 11 are uniformly arranged along the width direction of the first panel 1. Fifteen first vertical ribs 12 are laid on one side of the first transverse rib 11 back to the first panel 1, each first vertical rib 12 is arranged along the width direction of the first panel 1, and the first vertical ribs 12 are uniformly arranged along the length direction of the first transverse rib 11.

Referring to fig. 1, similarly, twenty-five second transverse ribs 21 are laid on the side of the second panel 2 opposite to the first panel 1, each second transverse rib 21 is parallel to the length direction of the second panel 2, and the second transverse ribs 21 are uniformly arranged along the width direction of the second panel 2. Fifteen second vertical ribs 22 are laid on one side of the second transverse rib 21, which is back to the second panel 2, each second vertical rib 22 is arranged along the width direction of the second panel 2, and the second vertical ribs 22 are uniformly arranged along the length direction of the second transverse rib 21.

Referring to fig. 1, the opposite tension rods 4 are arranged in a horizontal direction and are perpendicular to a longitudinal direction of the retaining wall. One end of the opposite pull rod 4 penetrates through the first panel 1 and the first vertical rib 12 and is sleeved with a first nut 41, and the other end of the opposite pull rod 4 penetrates through the second panel 2 and the second vertical rib 22 and is sleeved with a second nut 42. The first nut 41 abuts against a side of the first vertical rib 12 facing away from the first transverse rib 11, and the second nut 42 abuts against a side of the second vertical rib 22 facing away from the second transverse rib 21.

The first panel 1 and the second panel 2 are not easy to deviate from each other after being subjected to lateral pressure from concrete under the limitation of the first nut 41 and the second nut 42, and the first transverse rib 11 and the first vertical rib 12, and the second transverse rib 21 and the second vertical rib 22 respectively enable the first panel 1 and the second panel 2 to be stressed more uniformly.

Referring to fig. 2, the opposite sides of the two head plates 3 are provided with a third transverse rib 32, a third vertical rib 33 and a truss 31. The third transverse ribs 32 are closely attached to the head plate 3, the third transverse ribs 32 are arranged in parallel to the opposite pull rods 4, and the third transverse ribs 32 are uniformly arranged along the vertical direction. The third vertical ribs 33 are arranged along the vertical direction, the third vertical ribs 33 are uniformly arranged along the length direction of the third transverse rib 32, and the third vertical ribs 33 are abutted against one side of the third transverse rib 32 back to the head plate 3. The truss 31 is arranged parallel to the third transverse rib 32, is arranged in the vertical direction, and is abutted against the side of the third vertical rib 33 facing away from the third transverse rib 32.

The truss 31 has strong bending resistance and is limited by the truss 31, and the third transverse rib 32 and the third vertical rib 33 are not easy to bend and deform, so that the end plate 3 is not easy to expand, and can effectively resist the lateral pressure from concrete.

Referring to fig. 1, the first panel 1, the second panel 2 and the head plate 3 are subjected to larger lateral pressure closer to the bottom, so that two surrounding purlins 5 surround the bottom outsides of the first panel 1, the second panel 2 and the two head plates 3. The enclosing purlin 5 can enable the first panel 1, the second panel 2 and the two head plates 3 to keep a plane shape when being assembled, and the possibility of slurry leakage at the position is reduced.

Referring to fig. 1, four sets of three support rods 61 are bolted to the second vertical rib 22. Four sets of support bars 61 are arranged along the length direction of the second transverse rib 21, three support bars 61 in the same set are arranged along the length direction of the second vertical rib 22, and the support bars 61 are all arranged along the vertical direction.

Referring to fig. 1, a pressing bar 6 is bolted to the top end of each group of support rods 61, the pressing bar 6 is parallel to the opposite pull rod 4, and one end of the pressing bar, which faces away from the soil body, abuts against the end face of the top end of the first panel 1 and is suspended on one side of the first panel 1, which faces away from the second panel 2. The first panel 1 is pressed by the pressing bar 6 and is not easy to float upwards.

Referring to fig. 1, guard rails 7 are bolted to the top ends of the first panel 1, the second panel 2 and the head sealing plate 3 respectively to prevent a constructor standing on the top end of the formwork to assist in operation from falling.

The implementation principle of the embodiment is as follows:

enclosing purlin 5 encircles in the bottom of first panel 1, second panel 2 and two head boards 3, and the shape of plane when making the template keep the equipment is strengthened to the template bottom, improves the pressure-bearing upper limit of template bottom, reduces the possibility of leaking thick liquid, guarantees retaining wall's shaping quality.

Example 2:

the difference from embodiment 1 is that, referring to fig. 3, the structure for reinforcing the head plate 3 is composed of a suspension ring 34 and a stay 35. The hanging rings 34 are arranged on one opposite sides of the two end plates 3 in pairs and are in threaded connection with the end plates 3, and two ends of the stay cable 35 are respectively bound on the two hanging rings 34 of the same pair.

The implementation principle of the embodiment is as follows:

the two end sealing plates 3 deviate from each other along with the stretching deformation of the stay cable 35, so that part of the lateral pressure borne by the end sealing plates 3 is borne by the stay cable 35, the upper limit of the lateral pressure borne by the end sealing plates 3 is increased, and the structure is enhanced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a steel form for cast-in-place gravity retaining wall, includes first panel (1), second panel (2) and head board (3) that set up in pairs, first panel (1) is located one side of second panel (2) soil body dorsad, the slope of second panel (2) top soil body dorsad wears to be equipped with diagonal draw bar (4) on first panel (1) and second panel (2), the cover is equipped with first nut (41) and second nut (42) in pairs on diagonal draw bar (4), first nut (41) offset with one side of first panel (1) second panel (2) dorsad, second nut (42) offset with one side of second panel (2) first panel (1) dorsad, its characterized in that: the purlin (5) is surrounded on the first panel (1), the second panel (2) and at least one of the outer sides of the bottoms of the two head plates (3).

2. A steel form for a cast-in-place gravity retaining wall according to claim 1, wherein: the first panel (1) is provided with a plurality of first transverse ribs (11) on one side back to the second panel (2), the first transverse ribs (11) are arranged along the length direction of the first panel (1), the first transverse ribs (11) are arranged along the width direction of the first panel (1), a plurality of first vertical ribs (12) are arranged on one side back to the first panel (1) of the first transverse ribs (11), the first vertical ribs (12) are arranged along the width direction of the first panel (1), the first vertical ribs (12) are arranged along the length direction of the first panel (1), a plurality of second transverse ribs (21) are arranged on one side back to the first panel (1) of the second panel (2), the second transverse ribs (21) are arranged along the length direction of the second panel (2), the second transverse ribs (21) are arranged along the width direction of the second panel (2), and a plurality of second transverse ribs (22) are arranged on one side back to the second panel (2) of the second transverse ribs (21), the second vertical rib (22) is arranged along the width direction of the second panel (2), the second vertical rib (22) is arranged along the length direction of the second panel (2), the opposite pull rod (4) penetrates through the first vertical rib (12) and the second vertical rib (22), the first nut (41) is abutted to the first panel (1) through the first vertical rib (12) and the first transverse rib (11), and the second nut (42) is abutted to the second panel (2) through the second vertical rib (22) and the second transverse rib (21).

3. A steel form for a cast-in-place gravity retaining wall according to claim 2, wherein: be equipped with bracing piece (61) on second vertical rib (22), bracing piece (61) bottom links to each other with second vertical rib (22), and bracing piece (61) top has connect pressure thick stick (6), pressure thick stick (6) offset with first panel (1) top.

4. A steel form for a cast-in-place gravity retaining wall according to claim 1, wherein: and trusses (31) are respectively arranged on the opposite sides of the two end sealing plates (3).

5. A steel form for a cast-in-place gravity retaining wall according to claim 4, wherein: the head board (3) are equipped with a plurality of third cross ribs (32) towards truss (31) one side that corresponds, third cross rib (32) set up along the horizontal direction, and third cross rib (32) are parallel with head board (3), and third cross rib (32) are arranged along vertical direction, and third cross rib (32) are equipped with third vertical rib (33) dorsad head board (3) one side, vertical direction setting is followed in third vertical rib (33), and the length direction of third cross rib (32) is arranged in third vertical rib (33), truss (31) offset with head board (3) through third vertical rib (33) and third cross rib (32).

6. A steel form for a cast-in-place gravity retaining wall according to claim 1, wherein: hanging rings (34) are respectively arranged on one sides of the two end sealing plates (3) opposite to each other, and a pull rope (35) is arranged between the hanging rings (34) and connected with each other.

7. A steel form for a cast-in-place gravity retaining wall according to claim 1, wherein: the top ends of the first panel (1), the second panel (2) and the head sealing plate (3) are provided with guard rails (7).

8. A steel form for a cast-in-place gravity retaining wall according to claim 1, wherein: the bottom of the first panel (1) is bent back to the soil body.