CN217998163U - Economical retaining wall structure - Google Patents

Abstract

The application relates to the field of retaining wall structures, in particular to an economical retaining wall structure which comprises at least one wall section structure unit, wherein the wall section structure unit comprises at least two groups of supporting components, each supporting component comprises an inner edge column, an outer edge column and a bearing piece for resisting horizontal load, the inner edge column is arranged close to the wall back of a retaining wall, and the outer edge column is arranged far away from the wall back of the retaining wall; the bearing piece is arranged between the inner edge column and the outer edge column, and the bottom ends of the inner edge column and the outer edge column are fixed at the bottom of the retaining wall; a soil filling bin for back filling soil is formed between the two adjacent groups of supporting assemblies, and a soil retaining plate is arranged between the two adjacent outer edge columns. This application mainly used improves structural material's utilization efficiency to the construction of highly great retaining wall, reaches the effect of saving structural material, reducing the construction degree of difficulty, and construction economy is higher.

Description

Economical retaining wall structure

Technical Field

The invention relates to the field of retaining wall structures, in particular to an economical retaining wall structure.

Background

The retaining wall is a structure for supporting and retaining roadbed or hillside soil body, belongs to the field of supporting and retaining structures, and mainly has the function of preventing filling or soil body deformation and instability; the gravity type retaining wall can be divided into two categories, namely a gravity type retaining wall and a reinforced concrete structure retaining wall according to the structural form, wherein the gravity type retaining wall comprises a balance weight type retaining wall, a half-weight type retaining wall, an unloading plate type retaining wall, a vertical prestressed anchor rod type retaining wall and the like, and the horizontal soil pressure is resisted mainly by the self gravity of the retaining wall or by the self weight of partial soil; the reinforced concrete structure retaining wall comprises a cantilever type, a counterfort type, a pile plate type and the like, and mainly resists horizontal soil pressure by relying on the cantilever, the counterfort, an anti-slide pile structure and the like.

Because the soil pressure and the bottom shearing force are basically in direct proportion to the square of the height of the retaining wall, the overturning bending moment of the bottom or the bending moment of the bottom structural surface is basically in direct proportion to the cube of the height of the retaining wall, when the height of the retaining wall exceeds 10m, particularly after the height of the retaining wall exceeds 15m, no matter a gravity type retaining wall or a reinforced concrete structure retaining wall is adopted, the section size of the retaining wall structure needs to be increased by a large amount to provide stable retaining for a retained soil body, so that the structure thickness of the gravity type retaining wall is huge, or the structure section size of the reinforced concrete retaining wall breaks through structural members of daily concepts to generate 'huge' structural members, a large amount of structural materials are wasted, the problems of high construction difficulty, poor construction quality and the like exist, and the defects of structural material waste, high construction cost and the like exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides an economic retaining wall structure, mainly used is to the construction of highly great retaining wall, arrange the key position of structural force atress with structural material more rationally "dispersion", improve shear-resistant, bending rigidity of structural member, improve structural material's utilization efficiency, need not to increase along with the retaining wall height and the structure cross-section that infinitely enlarges the retaining wall can provide stable fender to being kept off the soil body, thereby reach the effect of saving structural material and construction cost, economy is higher.

The application provides an economic retaining wall structure adopts following technical scheme:

an economical retaining wall structure comprises at least one wall section structure unit, wherein the wall section structure unit comprises at least two groups of supporting components, each supporting component comprises an inner edge column, an outer edge column and a bearing piece for resisting horizontal load, the inner edge column is arranged close to the wall back of a retaining wall, and the outer edge column is arranged far away from the wall back of the retaining wall; the bearing piece is arranged between the inner edge column and the outer edge column, and the bottom ends of the inner edge column and the outer edge column are fixed at the wall bottom of the retaining wall; and a soil filling bin for back filling soil is formed between every two adjacent groups of the supporting components, and a soil retaining plate is arranged between every two adjacent outer edge columns.

Through adopting the above technical scheme, the load spare has the ability of resisting horizontal load, every group supporting component homoenergetic forms a fender point, multiunit supporting component dispersion supports on the soil body, can form a plurality of fender points of distributed arranging, structural component's shearing has been improved, bending rigidity, full play structural material's characteristic, improve structural material's utilization efficiency, need not to design the large-cross-section, large size, the inconvenient and extravagant retaining structure of structural material of construction such as thick diameter reinforcing bar, can satisfy the fender to higher soil body, thereby reach the effect of saving structural material and construction cost, economic nature is higher.

Optionally, at least two soil filling bins are arranged in the vertical direction.

Through adopting above-mentioned technical scheme, the storehouse of filling with earth sets up to a plurality ofly along vertical direction to form a plurality of structural layers with this retaining wall structure along vertical direction, in the work progress, can carry out the successive layer to the storehouse of filling with earth and backfill, it is more convenient to be under construction.

Optionally, the bearing members are arranged in the vertical direction, the bearing members and the filling bins are correspondingly arranged, two adjacent bearing members in the vertical direction are provided with frame beams, and two ends of each frame beam are connected to the inner edge column and the outer edge column respectively.

Through adopting above-mentioned technical scheme, the frame roof beam can increase the connection steadiness between inner edge post and the outer fringe post, and the frame roof beam can form the frame that is used for installing the load spare with inner edge post, outer fringe post simultaneously to increase the steadiness of load spare.

Optionally, the outer edge column includes a plurality of column joints that are end to end along the vertical direction, and the cross section of the column joint that is located above is not more than the cross section of the column joint below, the column joint corresponds the setting with the storehouse of filling out soil.

By adopting the technical scheme, the pressure applied to the retaining wall structure by the supported and baffled soil body is gradually reduced from bottom to top, the pressure born by the outer edge column is also gradually reduced from bottom to top, and the cross section of the outer edge column is arranged to be gradually reduced upwards, so that the structural material can be further saved and the economy can be improved on the premise of meeting the supporting and baffling requirements; and, divide into a plurality of column joints with the outer fringe post, also along with the storehouse layering construction that bankets, it is more convenient to construct.

Optionally, the maximum size of the inner edge column along the length direction of the retaining wall is b, the maximum size along the direction perpendicular to the wall back is h, and b is not more than h.

Through adopting above-mentioned technical scheme, under the certain circumstances of two adjacent sets of supporting component intervals, through above-mentioned setting, the interval between two adjacent interior edge posts is bigger to more be favorable to the removal of the apparatus of filling out soil, it is more convenient to backfill the storehouse of filling out soil

Optionally, the maximum dimension of the outer edge column along the length direction of the retaining wall is b, the maximum dimension of the outer edge column along the direction perpendicular to the wall back is h, and b is greater than or equal to h.

Through adopting above-mentioned technical scheme, the outer fringe post is located this retaining wall and keeps away from one side of the wall back to with external environment direct contact, through the aforesaid setting, the outside convex size of reducible outer fringe post reduces this retaining wall in the use, the damaged possibility of outer fringe post.

Optionally, the soil retaining plates are arranged in the vertical direction, at least two outer connecting tie beams are arranged between every two adjacent soil retaining plates, two ends of each outer connecting tie beam are connected to the two adjacent outer edge columns respectively, and the soil retaining plates and the soil filling bins are arranged correspondingly.

By adopting the technical scheme, the soil retaining plates are mainly used for blocking the collapse of soil bodies in the soil filling bin, and the plurality of soil retaining plates are arranged, so that the layered construction of the soil retaining plates is facilitated; the outer tie beam can play the connection effect between two adjacent outer edge posts, is convenient for keep off the installation of native board simultaneously to the outer tie beam can play vertical bearing effect to the native board of fender.

Optionally, an inner connecting beam is arranged between two adjacent inner edge columns, and the inner connecting beam and the outer connecting beam are arranged correspondingly.

Through adopting above-mentioned technical scheme, the interconnection tie beam can increase the joint strength between the interior edge post to increase wall section constitutional unit's stability, simultaneously, being provided with of interconnection tie beam does benefit to the formation of structural layer.

Optionally, the bearing member is a shear wall, and the shear wall is perpendicular to the retaining wall in the length direction.

Through adopting above-mentioned technical scheme, through setting up the load piece into the shear force wall, the shear force wall sets up along the thickness direction of this retaining wall, and the shear force wall has better ability of resisting horizontal load, can resist the soil pressure of the wall back of the body, and structural material's utilization ratio is higher to the construction is simple and convenient.

Optionally, the thickness of the shear wall above two adjacent shear walls in the vertical direction is not greater than that of the shear wall below the two adjacent shear walls in the vertical direction.

By adopting the technical scheme, because the horizontal soil pressure born by the retaining wall structure is gradually reduced from bottom to top, the thickness of the shear wall above the retaining wall structure is set to be smaller than that of the shear wall below the retaining wall structure, so that the structural material can be further saved while sufficient supporting and retaining force is provided for the soil body, and the economic benefit is improved.

Optionally, a structural hole is formed in the shear wall, and the structural hole is arranged close to the lower portion of the shear wall.

By adopting the technical scheme, after the filling bins are built, the filling machine needs to enter the filling bins for operation, and can enter the filling bins through the structural holes and shuttle between the two adjacent filling bins, so that the construction is more convenient.

Optionally, the force bearing member is an inclined strut, and the inclined strut extends downwards from the inner edge column to the outer edge column.

Through adopting above-mentioned technical scheme, every group supporting component all forms a fender point, and the pressure that gives this retaining wall structure by a fender soil body is mainly for horizontal soil pressure, and horizontal soil pressure makes the inner edge post have towards the trend that the outer edge post is emptyd, and the bracing can play the effect of support and transmission horizontal force between the inner edge post.

Optionally, the cross section of the upper diagonal brace is smaller than that of the lower diagonal brace.

By adopting the technical scheme, because the horizontal soil pressure born by the retaining wall structure is gradually reduced from bottom to top, the scheme can provide enough retaining force for the soil body, and meanwhile, the structural materials are further saved, and the economic benefit is improved.

Optionally, the top end of the outer edge column is provided with a protection device, and the protection device is higher than the top of the retaining wall.

By adopting the technical scheme, the protective device is higher than the wall top ground of the retaining wall, can play a protective role on the terrace of the wall top of the retaining wall, the possibility that people fall off or articles fall off on the ground on the top of the retaining wall is reduced.

Drawings

Fig. 1 is a schematic view of the distribution structure of an economical retaining wall structure and a supported retaining soil body according to embodiment 1 of the present application.

Fig. 2 is a schematic perspective view of an economical retaining wall structure according to example 1 of the present application.

Fig. 3 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Fig. 4 is a cross-sectional view of B-B in fig. 1.

Fig. 5 is a schematic connection diagram of an expansion joint between two adjacent wall segment structural units in embodiment 1 of the present application.

Fig. 6 is a schematic view of the distribution structure of the economical retaining wall structure and the supported soil body in embodiment 2 of the present application.

Fig. 7 is a perspective view of an economical retaining wall structure according to example 2 of the present application.

Description of reference numerals: 1. a support assembly; 11. an inner edge column; 12. a peripheral column; 121. a column section; 13. a force bearing member; 131. a shear wall; 1311. a structural hole; 132. bracing; 14. a frame beam; 15. interconnecting tie beams; 16. an outer connecting tie beam; 161. an outer cantilever beam; 2. a soil filling bin; 3. a soil guard plate; 4. a base structure unit; 41. a bearing platform; 411. an inner bearing platform; 412. an outer bearing platform; 42. a pile body; 43. a foundation straining beam; 44. a base beam; 5. a guard; 6. a supported retaining soil body; 7. and (5) a wall back.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Example 1

The embodiment discloses an economical retaining wall structure. Referring to fig. 1 and 2, the economical retaining wall structure includes at least one wall segment structure unit, the number of which is determined by the overall length of the retaining wall structure, and a plurality of wall segment structure units are sequentially arranged at one side of a supported retaining soil body 6, thereby providing a stable support for the soil body. Wall section constitutional unit includes at least two sets of supporting component 1 along retaining wall length direction align to grid, supporting component 1 is used for resisting the horizontal load that comes from being propped up fender soil body 6, at least two sets of supporting component 1 are along the length direction align to grid of retaining wall, can form a plurality of even and dispersed fender points in soil body one side, thereby need not to increase the cross sectional dimension of retaining wall and can provide stable fender to being propped up fender soil body 6, can reach save structural material, reduce the effect of the construction degree of difficulty, the construction economy is higher.

Referring to fig. 1 and 2, in this embodiment, the side of the retaining wall in direct contact with the supported and blocked soil 7 is the wall back 7, the wall back 7 is a vertical plane, the side of the retaining wall away from the supported and blocked soil 7 is a wall surface, the wall surface is also set to be a vertical plane, the top of the retaining wall is a wall top, and the bottom of the retaining wall is a wall bottom.

Referring to fig. 1 and 2, the retaining wall structure in the present embodiment is mainly used for retaining wall construction with a height of 10m or more, and for convenience of construction and structural calculation, a plurality of structural layers are arranged along the height direction of the retaining wall structure, and the layer height of each structural layer is preferably 3 to 5m; because the passive soil pressure and the bottom shearing force are basically in direct proportion to the square of the height of the retaining wall, the horizontal soil pressure borne by the retaining wall structure is gradually reduced from bottom to top, so that the layer height of the structural layer can be gradually increased from bottom to top; in addition, the heights of the various positions of the lowest structural layer may be unequal to accomplish structural leveling within the lowest structural layer.

Referring to fig. 1 and 2, in the present embodiment, taking an example that each wall segment structural unit includes four sets of supporting assemblies 1, each supporting assembly 1 includes an inner edge column 11, an outer edge column 12, a frame beam 14 and a bearing member 13, the inner edge column 11 and the outer edge column 12 are both vertically arranged, and the bottom end is fixedly supported on the foundation structural unit 4 at the bottom of the retaining wall, the inner edge column 11 is arranged at the wall back 7, and the outer edge column 12 is arranged at the outer side wall body of the retaining wall; in this embodiment, the load-bearing member 13 is configured as a shear wall 131, the shear wall 131 is perpendicular to the wall back 7 and extends along the thickness direction of the retaining wall, the shear wall 131 is fixed between the inner edge column 11 and the outer edge column 12 and is mainly used for resisting and dispersing horizontal passive soil pressure, the inner edge column 11 and the outer edge column 12 mainly function as edge restraining members of the shear wall 131 in the retaining wall, and the foundation structure unit 4 can support the shear wall 131; the frame beams 14, the inner edge columns 11, the outer edge columns 12 and the shear walls 131 are integrally cast in situ from reinforced concrete.

Referring to fig. 1 and 2, each of the inner edge column 11 and the outer edge column 12 includes a plurality of end-to-end column sections 121, each column section 121 corresponds to one structural layer, the frame beams 14 are disposed at the height of the structural layer between the adjacent inner edge column 11 and outer edge column 12, and the column sections 121 of the inner edge column 11, the column sections 121 of the outer edge column 12, the shear walls 131, and the adjacent frame beams 14 above the shear walls 131 form one structural layer.

In other application scenarios, the wall back 7 and the wall surface of the retaining wall can be both set to be inclined planes, and the two are close to each other from bottom to top, and the technical personnel in the field can make adaptive adjustment to the arrangement of the wall section structure unit according to the inclination of the wall back 7 and the wall surface, for example, the outer edge column 12 is extended and set along the inclination direction of the wall back 7, so that the inclination direction of the outer edge column 12 is matched with the inclination direction of the wall back 7, and the inner edge column 11 is set along the inclination direction of the wall surface, so that the inclination direction of the inner edge column 11 is matched with the inclination direction of the wall surface.

Referring to fig. 1 to 3, a retaining plate 3 is fixedly connected between two adjacent outer edge columns 12, the retaining plate 3 is made of reinforced concrete, and the retaining plate 3 is arranged perpendicular to the shear wall 131; form the storehouse 2 that fills with that is used for filling the soil body between shear force wall 131 and the fender board 3 of adjacent two sets of supporting components 1, keep off the side that the board 3 is laminated in outer fringe post 12 and is close to inner fringe post 11, keep off the board 3 and have the ability of resisting horizontal soil pressure, can be used to prop up and keep off the soil body in the storehouse 2 that fills with, when the board 3 that keeps off bears horizontal soil pressure, keep off the board 3 and have the pressure of horizontal direction to the outer fringe post 12 of both sides. Furthermore, the retaining plate 3 is provided with drain holes (not shown), and before the inside of the retaining plate 3 is filled with soil, a 300-500 wide-graded sandstone reverse filtration layer is required to be filled, and the groundwater in the soil body is filtered by the sandstone reverse filtration layer and then can be discharged through the drain holes.

Referring to fig. 1 and 2, a plurality of shear walls 131 are arranged between the inner edge column 11 and the outer edge column 12 along the vertical direction, two adjacent shear walls 131 in the vertical direction are located in different structural layers, the heights of the shear walls 131 located in the same structural layer are the same, and the distance between the two adjacent shear walls 131 in the same structural layer is preferably 4-6 m; a plurality of soil retaining plates 3 between two adjacent outer edge columns 12 are also arranged along the vertical direction, two soil retaining plates 3 adjacent to each other in the vertical direction are also positioned in different structural layers, the soil retaining plates 3 are correspondingly arranged with the shear walls 131, so that a plurality of soil filling bins 2 are also formed along the vertical direction along with the structural layers, a vertically through soil body is formed along with the structural layers in the soil filling bins 2 along the vertical direction, and the soil filling bins are also integrally communicated with the supported soil body 6 behind the wall back 7 in the horizontal direction; during construction, the retaining wall structure can be constructed layer by the structural layer serving as a node, and the soil filling bin 2 is backfilled layer by layer, so that the construction is more convenient.

Referring to fig. 1-3, in order to facilitate the installation of the retaining plate 3, a multi-span external connecting beam 16 is fixedly connected between two adjacent outer edge columns 12, the external connecting beam 16 and the outer edge columns 12 are cast in situ by reinforced concrete, the side surface of the external connecting beam 16 close to the inner edge column 11 protrudes out of the side surface of the outer edge column 12 close to the inner edge column 11, and the multi-span external connecting beams 16 in the same structural layer are connected end to end and are integrally formed; the outer connecting beam 16 is arranged between two adjacent retaining plates 3 in the vertical direction, the upper side and the lower side of each retaining plate 13 are respectively attached to the upper outer connecting beam 16 and the lower outer connecting beam 16, and the outer connecting beam 16 positioned below the retaining plate 13 can provide supporting force for the retaining plate 13.

Referring to fig. 1-3, the retaining plate 3 can be made of reinforced concrete precast slabs or cast-in-place reinforced concrete, when the retaining plate 3 is made of reinforced concrete precast slabs, the retaining plate 3 is set upright, the retaining plate 3 is attached to one side of the outer edge column 12 close to the inner edge column 11, and the lower side is supported on the outer connecting beam 16, the outer edge column 12 and the outer connecting beam 16 can limit the position of the retaining plate 3, and when the retaining plate 3 is subjected to horizontal soil pressure, the retaining plate 3 is equivalently simply supported on the inner side of the outer edge column 12; when the retaining plate 3 is cast in place by using reinforced concrete, the retaining plate 3 is cast integrally with the outer edge columns 12 on both sides and the external connecting beams 16 at the upper and lower positions. In other application scenarios, the retaining wall structure can also be used in the construction of retaining walls with lower height, and when the total height of the retaining wall is not higher than 8m, the shear wall 131 and the retaining plate 3 can both adopt masonry structures, thereby further achieving the effect of saving structural materials.

Referring to fig. 2 and 4, an inner tie beam 15 is arranged between two adjacent inner edge columns 11 at the height of a structural layer, and the inner tie beams 15 and the outer tie beams 16 are in one-to-one correspondence in height in the same structural layer.

Referring to fig. 2-4, during construction, the soil filled back in the soil filling bin 2 and the supported soil 6 on one side of the wall back 7 are integrated, i.e. the retaining wall structure is buried in the filled soil. The inner edge column 11 is buried in the soil body, the outer edge column 12 is exposed to the external environment, the cross sections of the inner edge column 11 and the outer edge column 12 are rectangular, the dimension of the inner edge column 11 and the outer edge column 12 in the length direction of the retaining wall is b, and the dimension of the inner edge column 11 and the outer edge column 12 in the direction perpendicular to the wall back 7 is h; for the inner edge columns 11, b is less than or equal to h, and the distance between every two adjacent inner edge columns 11 is larger, so that the filling machinery can fill the soil in the filling bin 2; for the outer peripheral columns 12, b.gtoreq.h to facilitate the arrangement of the retaining plate 3 and to reduce the outward bulging dimension of the outer peripheral columns 12.

Referring to fig. 1 and 2, in order to facilitate the construction of the earth-filling silos 2, structural holes 1311 are formed in the shear walls 131, the structural holes 1311 are formed in a door frame shape, and are formed below each shear wall 131, and the structural holes 1311 are formed above the frame beams 14 below the corresponding shear walls 131, so that a small earth-filling machine (e.g., a small excavator) can pass through the earth-filling silos 2 on the same structural layer. In other application scenarios, when the overall height of the retaining wall is low, the thickness of the retaining wall is reduced, that is, the length of the shear wall 131 in the direction perpendicular to the wall back 7 is reduced, the structural hole 1311 may not be provided, and the earth-filling machine may walk outside the retaining wall and realize backfilling of the earth-filling bin 2.

Referring to fig. 1 and 2, since the horizontal soil pressure to which the retaining wall structure is subjected is gradually reduced from bottom to top, a plurality of column sections 121 constituting the inner edge column 11 and the outer edge column 12 are arranged as follows: the inner edge column 11 and the outer edge column 12 are both formed by connecting a plurality of column sections 121 end to end, the cross section of the upper column section 121 is not larger than that of the lower column section 121 of the two column sections 121 connected end to end, namely, the inner edge column 11 and the outer edge column 12 are both gradually thinned from bottom to top; meanwhile, the thickness of the shear wall 131, the thickness of the retaining plate 3, the cross section of the frame beam 14 and the cross section of the outer connecting beam 16 are also reduced from bottom to top layer by layer, so that the structural material is further saved, and the economical efficiency of the structure is improved.

Referring to fig. 3 and 4, in particular, regarding the relevant parameters of the shear wall 131, the design is as follows: the overall height of the retaining wall is H, the thickness of the shear wall 131 at the bottommost layer is initial thickness d, the value range of d is preferably 1/30H-1/40H, and the thickness of the shear wall 131 at the upper layer is inwards retracted by 50-100 mm layer by layer on the basis of d; the length of the shear wall 131 at the bottommost layer along the direction perpendicular to the length direction of the retaining wall is an initial length L, and the value of L is preferably 1/3H-1/2H.

Referring to fig. 2 and 5, when the wall segment structural units are provided in plurality, the wall segment structural units are provided at intervals along the length direction of the retaining wall, and the distance between two adjacent outer edge columns 12 of two adjacent wall segment structural units is equal to the distance between two adjacent outer edge columns 12 in the same wall segment structural unit; the two side edges of the wall section structure units are provided with outer cantilever beams 161, the outer cantilever beams 161 are formed by extending outer connecting tie beams 16 outwards at the end parts of the outer edge columns 12, a gap is arranged between the outer cantilever beams 161 of the two adjacent wall section structure units, the width of the gap can be set to be 20-30 mm, and the gaps between the outer cantilever beams 161 in a plurality of structure layers are vertically communicated, so that expansion joints between the wall sections of the retaining wall are formed. Two outer outriggers 161 of highly uniform are a set of, also set up between two sets of outer outriggers 161 of vertical adjacent and two adjacent outer edge posts 12 and keep off the soil plate 3, keep off the soil plate 3 and can realize sliding along the length direction of retaining wall to when external climate changes, make this retaining wall can adapt to the deformation that the retaining plate takes place, play the guard action to this retaining wall structure.

In other application scenarios, when the wall segment structural units are arranged in plurality, the side spans of two adjacent wall segment structural units can be arranged in a close manner without arranging the cantilever beam heads 161, the shear walls 131 (and structural members used for supporting the shear walls 131, such as the inner edge columns 11, the outer edge columns 12 and the frame beams 14) of the two adjacent wall segment structural units form a double-wall structure, and an expansion joint is also arranged between the two shear walls 131, so that the joint of the two wall segment structural units can adapt to thermal expansion and cold contraction generated by climate change.

Referring to fig. 1 and 2, in order to facilitate greening of terraces on the top of the retaining wall and arrangement of underground pipe networks, a top structural layer is arranged on the top of the retaining wall structure, the height of the top structural layer is smaller than that of a lower structural layer, and the height of the top structural layer is preferably 1.5-2.5 m; the top structure layer only retains the outer edge column 12, the retaining plate 3, the outer connecting beam 16 and the outer cantilever beam 161, the outer edge column 12 at the top end upwards forms a cantilever structure, and the height of the top terrace of the supported and blocked soil body 6 close to one side of the outer edge column 12 is flush with the top surface of the outer edge column 12; the top surface of the outer edge column 12 is provided with a protective device 5, and the protective device 5 can be built into a fence, a protective railing and other types to prevent objects, personnel and the like from falling from the terrace at the top of the retaining wall.

Referring to fig. 1 to 3, the foundation structure unit 4 is a foundation of the retaining wall structure, and is mainly used for providing support for the shear wall 131, and the foundation structure unit 4 is disposed at the bottom ends of the inner edge columns 11 and the outer edge columns 12; the foundation structure unit 4 includes a bearing platform 41 and a pile body 42, and the foundation structure unit 4 is described in detail below by taking the outer edge column 12 as an example; the bearing platforms 41 are polygonal platforms, in this embodiment, square platforms are taken as an example and are embedded below the ground of the wall bottom, the pile bodies 42 are cylindrical reinforced concrete cast-in-place piles, four of which are fixedly arranged below each bearing platform 41, the bearing platforms 41 are formed by cast-in-place reinforced concrete, and the pile bodies 42 are vertically embedded and connected with the bearing platforms 41; the projection of the outer edge column 12 on the upper surface of the bearing platform 41 is positioned at the center of the upper surface of the bearing platform 41, and the bottom end of the outer edge column 12 is fixedly connected to the upper surface of the bearing platform 41, so that the outer edge column 12 is stably supported on the foundation of the bottom of the retaining wall.

Referring to fig. 1 to 3, for convenience of description, the bearing platform 41 at the bottom end of the inner edge column 11 is named as an inner bearing platform 411, and the bearing platform 41 at the bottom end of the outer edge column 12 is named as an outer bearing platform 412; be provided with basic straining beam 43 between a plurality of outer cushion caps 412 in same wall section constitutional unit, correspond on the outer cushion cap 412 and offer the recess that is used for holding basic straining beam 43, basic straining beam 43 extends along the length direction of retaining wall, and fixes in proper order and inlays in the recess of establishing on outer cushion cap 412 to make a plurality of outer cushion caps 412 interconnect in the same wall section constitutional unit, basic straining beam 43 also can regard as the bearing foundation beam of bottom retaining plate 3. Foundation tie beams 43 are also provided between the plurality of inner bearing platforms 411 in the same wall segment structural unit so that the plurality of inner bearing platforms 411 are connected to each other. A foundation cross beam 44 is arranged between the inner bearing platform 411 and the outer bearing platform 412 which are arranged adjacently, the foundation cross beam 44 can be used for supporting the shear wall 131 at the bottom, one end of the foundation cross beam 44 is integrally cast with the inner bearing platform 411, and the other end of the foundation cross beam 44 is integrally cast with the outer bearing platform 412; the plurality of inner bearing platforms 411 and the plurality of outer bearing platforms 412 are horizontally and longitudinally connected through the foundation beams 44 and the foundation tie beams 43, thereby forming a complete foundation system of the retaining wall structure.

The implementation principle of an economical retaining wall structure of the embodiment of the application is as follows: during construction, firstly, the construction of the foundation structure unit is completed, then the construction of the component of the lowest structure layer is completed in a cast-in-place or prefabricated mode, and the soil filling instrument enters the soil filling bin 2 through the structure hole 1311 on the shear wall 131 and passes through the plurality of soil filling bins 2 in the same structure layer, so that the soil body backfilling of the lowest structure layer is completed; and constructing layer by the same construction method until the construction of the retaining wall structure is completed. In the embodiment, the multiple groups of supporting assemblies 1 are dispersedly supported on the soil body to form a plurality of supporting points which are distributed in a dispersing manner, so that the characteristics of the structural material can be fully exerted, the utilization efficiency of the structural material is improved, the effect of saving the structural material and the construction cost is achieved, the structural material can be saved by more than 1/3 through preliminary estimation, and the economic benefit is good.

The related calculation and design of the wall segment structural unit in the embodiment comprises the following steps:

1. calculating passive soil pressure data along the height of the retaining wall structure by using geotechnical engineering design software; in general, geotechnical engineering design software can adopt physical and positive geotechnical software.

2. The passive soil pressure data is used as the load of the retaining wall structure in the embodiment, and is introduced into structural engineering design technical software to perform structural calculation of the wall section structural unit to obtain structural data of the wall section structural unit; in general, the structural engineering design technology software can adopt SETWE module, constructionics software and other building structural engineering calculation software in PKPM; it should be noted that the wall segment structural units at the corners of the retaining wall structure need to be calculated separately.

3. And according to the structural unit data of the wall section structure, carrying out structural design of the retaining wall structure above the wall bottom ground, such as the design of the wall section structural unit.

The related calculation and design of the infrastructure element in this embodiment includes the following steps:

1. determining a retaining wall foundation scheme by combining the geotechnical engineering investigation report result of the retaining wall structure; this retaining wall structure's basic form can adopt forms such as bar base, raft foundation, box footing, pile foundation, and the foundation structure unit 4 that this embodiment adopted is the pile foundation form.

2. The above-mentioned wall segment structural unit structure data is imported into corresponding foundation basic calculation software (for example, JCCAD module in PKPM structural calculation software, etc.), and structural calculation of the basic structural unit 4 is performed to obtain basic structural unit structure data, thereby performing design of the basic structural unit 4.

Example 2

The present embodiment discloses an economical retaining wall structure, referring to fig. 6 and 7, the present embodiment is different from embodiment 1 in that the force-bearing member 13 is provided as an inclined strut 132, the inclined strut 132 is installed in a rectangular frame formed by the column joint 121 of the inner edge column 11, the column joint 121 of the outer edge column 12, and the frame beam 14, the inclined strut 132 is arranged along a diagonal line of the rectangular frame, and the inclined strut 132 is connected to a lower node of the frame beam 14 (the lower end of the inclined strut 132 in the bottom layer structure layer is connected to the base beam 44) from an upper node of the inner edge column 11 and the frame beam 14 to the outer edge column 12, that is, an end of the inclined strut 132 close to the inner edge column 11 is higher than an end close to the outer edge column 12, so as to form a frame structure with an inclined strut, and when resisting horizontal load, the inclined strut 132 is equivalent to a "hollow" cantilever beam; the two ends of the inclined strut 132 are fixed at two opposite corners of the rectangular frame, respectively, and the inclined strut 132, the outer edge column 12, the inner edge column 11 and the frame beam 14 form a "hollow" structure system resisting horizontal force. The cross-sectional dimensions of the struts 132 in different structural layers are different, and the cross-sectional dimension of the upper strut 132 is not greater than the cross-sectional dimension of the lower adjacent strut 132.

Referring to fig. 6, in the present embodiment, the shear wall 131 is replaced with the inclined strut 132, so that structural materials are further saved, and the shear wall can be used in a retaining wall project with a general height, and the application range is wider, so that an effect of further saving structural materials can be achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (14)

1. An economical retaining wall structure, includes at least one wall section constitutional unit, its characterized in that: the wall section structure unit comprises at least two groups of supporting assemblies (1), each supporting assembly (1) comprises an inner edge column (11), an outer edge column (12) and a bearing piece (13) for resisting horizontal load, the inner edge column (11) is arranged close to the wall back (7) of the retaining wall, and the outer edge column (12) is arranged far away from the wall back (7) of the retaining wall; the bearing piece (13) is arranged between the inner edge column (11) and the outer edge column (12), and the bottom ends of the inner edge column (11) and the outer edge column (12) are fixed at the bottom of the retaining wall; a soil filling bin (2) for back filling soil is formed between every two adjacent groups of the supporting assemblies (1), and a soil retaining plate (3) is arranged between every two adjacent outer edge columns (12).

2. An economical retaining wall structure according to claim 1, characterized in that: at least two soil filling bins (2) are arranged along the vertical direction.

3. An economical retaining wall structure according to claim 2, characterized in that: the soil filling machine is characterized in that at least two bearing parts (13) are arranged in the vertical direction, the bearing parts (13) are arranged corresponding to the soil filling bin (2), two adjacent bearing parts (13) in the vertical direction are provided with frame beams (14), and two ends of each frame beam (14) are connected to the inner edge column (11) and the outer edge column (12) respectively.

4. An economical retaining wall structure according to claim 2, characterized in that: the outer edge column (12) comprises a plurality of column sections (121) which are connected end to end along the vertical direction, the cross section of each column section (121) above the column section (121) is not larger than that of the column section (121) below the column section, and the column sections (121) are arranged corresponding to the soil filling bins (2).

5. An economical retaining wall structure according to claim 4, characterized in that: the maximum size of the inner edge column (11) along the length direction of the retaining wall is b, the maximum size along the direction perpendicular to the wall back (7) is h, and b is less than or equal to h.

6. An economical retaining wall structure according to claim 4, characterized in that: the maximum size of the outer edge column (12) along the length direction of the retaining wall is b, the maximum size along the direction perpendicular to the wall back (7) is h, and b is larger than or equal to h.

7. An economical retaining wall structure according to claim 2, characterized in that: keep off native board (3) and set up two at least along vertical direction, be provided with outer tie beam (16) between two adjacent fender native board (3) of vertical direction, outer tie beam (16) both ends are connected respectively on two adjacent outer edge posts (12), it corresponds the setting with storehouse of filling out soil (2) to keep off native board (3).

8. An economical retaining wall structure according to claim 7, characterized in that: an inner connecting beam (15) is arranged between every two adjacent inner edge columns (11), and the inner connecting beam (15) and the outer connecting beam (16) are arranged correspondingly.

9. An economical retaining wall structure according to any one of claims 1 to 8, characterized in that: the bearing piece (13) is arranged to be a shear wall (131), and the shear wall (131) is perpendicular to the length direction of the retaining wall.

10. An economical retaining wall structure according to claim 9, characterized in that: the thickness of the shear wall (131) at the upper part is not more than that of the shear wall (131) at the lower part of two vertically adjacent shear walls (131).

11. An economical retaining wall structure according to claim 9, characterized in that: a structural hole (1311) is formed in the shear wall (131), and the structural hole (1311) is arranged close to the lower portion of the shear wall (131).

12. An economical retaining wall structure according to any one of claims 1 to 8, characterized in that: the force bearing part (13) is arranged as an inclined strut (132), and the inclined strut (132) extends downwards from the inner edge column (11) to the outer edge column (12).

13. An economical retaining wall structure according to claim 12, characterized in that: two adjacent vertical bracing struts (132), the cross section of the bracing strut (132) positioned above is not larger than that of the bracing strut (132) positioned below.

14. An economical retaining wall structure according to claim 1, characterized in that: the outer edge column (12) top is provided with protector (5), protector (5) are higher than the wall top of retaining wall.

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