CN212715010U - Low tenon foundation gravity retaining wall - Google Patents

Abstract

The application provides a low tenon basis gravity retaining wall relates to the building construction technology. Low tenon basis gravity retaining wall includes: the prefabricated members are used for being spliced to form a wall body, the bottom surface of the wall body is provided with a first limiting structure, and each prefabricated member comprises a first prefabricated block with an L-shaped longitudinal section; the top surface of the upper foundation is provided with a second limiting structure which is matched with the first limiting structure to limit the relative displacement between the wall body and the upper foundation, and the bottom surface of the upper foundation is provided with a third limiting structure; the lower foundation is used for bearing the upper foundation, the top surface of the lower foundation is provided with a fourth limiting structure which is used for being matched with the third limiting structure to limit the relative displacement of the upper foundation and the lower foundation, the bottom surface of the lower foundation is used for being attached to the surface of the foundation, and the width of the bottom surface of the lower foundation is not less than that of the wall body. The low-tenon foundation gravity block and the construction method thereof solve the problems of construction difficulty and long construction period of the retaining wall.

Description

Low tenon foundation gravity retaining wall

Technical Field

The application relates to a building construction technology, in particular to a low tenon foundation gravity retaining wall.

Background

The retaining wall in the prior art is usually finished in a cast-in-place mode, and the procedures of erecting a template, pouring concrete and the like in a construction area are finished in the cast-in-place mode, so that the construction is difficult to finish in regions with poor geological conditions or remote areas; and because cast-in-place concrete requires a long time to achieve the desired structural strength, it is difficult to apply in areas of high urgency. Therefore, the retaining wall completed in a cast-in-place mode has the problems of difficult construction and long construction period.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present application provides a low tenon foundation gravity retaining wall to solve the problems of construction difficulty and long construction period of the retaining wall.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides a low tenon basis gravity retaining wall, include: the prefabricated parts are used for being spliced to form a wall body, the bottom surface of the wall body is provided with a first limiting structure, and each prefabricated part comprises a first prefabricated block with an L-shaped longitudinal section; the top surface of the upper foundation is provided with a second limiting structure which is matched with the first limiting structure to limit the relative displacement between the wall body and the upper foundation, and the bottom surface of the upper foundation is provided with a third limiting structure; the lower foundation is used for bearing the upper foundation and forming the low tenon foundation with the upper foundation, the top surface of the lower foundation is provided with a fourth limiting structure which is used for being matched with the third limiting structure to limit the relative displacement of the upper foundation and the lower foundation, the bottom surface of the lower foundation is used for being attached to the surface of the foundation, and the width of the bottom surface of the lower foundation is not less than that of the wall body.

Furthermore, the first precast block comprises a first base and a first bump which are integrally formed, the first base and the first bump are arranged adjacently, the bottom surface of the first base is flush with the bottom surface of the first bump and connected into a whole, the first base and the first bump are both provided with the first limiting structures, the top surface of the first base is lower than the top surface of the first bump, the top surface of the first base is adjacent to a first side surface of the first bump, and the first side surface and the top surface of the first base form an L-shaped groove; the first bump is provided with a second side surface opposite to the first side surface, and the second side surface and the bottom surface of the first bump form an L-shaped corner; the L-shaped corner of each first precast block is used for being placed in an L-shaped groove of another first precast block to be spliced to form at least part of the wall body.

Further, the length of the first bump is the same as that of the first base, the width of the first bump is the same as that of the first base, and the height of the first bump is 2 times that of the first base.

The prefabricated member further comprises a second prefabricated block with a rectangular longitudinal section, the height of the second prefabricated block is the same as that of the first base, and the length of the second prefabricated block is the sum of the lengths of the first base and the first bump; each second precast block is used for being placed on the top surfaces of the L-shaped groove of one first precast block and the first lug of the other first precast block to form the top of the wall body.

Further, go up the basis piece and include that the longitudinal section is the first basis piece of L type, first basis piece includes integrated into one piece's second base and second lug, the second base with the second lug is adjacent to be set up, the bottom surface of second base with the bottom surface of second lug even forms as an organic whole go up the bottom surface of basis, the top surface of second base is less than the top surface of second lug just the top surface of second base with the top surface of second lug all is provided with second limit structure, the top surface of second base with the side of second lug is adjacent, the side of second lug with the top surface of second base forms and is used for placing the L type recess of first prefabricated piece.

Further, the length of the second base is the same as that of the first base, the height of the second base is the same as that of the first base, the length of the second bump is the same as that of the first bump, and the height of the second bump is the same as that of the first bump.

Furthermore, the upper foundation piece also comprises a second foundation block with a rectangular longitudinal section, the length of the second foundation block is the same as that of the second bump, and the height of the second foundation block is the same as that of the second base; the second foundation block is used for being arranged below the first precast block and between the first foundation block, the top surface of the second foundation block is provided with the second limiting structure, and the bottom surface of the second foundation block is provided with the third limiting structure.

Furthermore, the first limiting structure and the third limiting structure are both tenons, and the second limiting structure and the fourth limiting structure are both mortise slots.

Further, the height of the tenon is 0.06 to 0.16 times of the height of the first base, and the depth of the mortise is not less than the height of the tenon.

Furthermore, the side surface of the wall body is provided with greening grooves, the greening grooves are formed in at least part of the prefabricated member, and the greening grooves extend out of the prefabricated member.

The application provides a low tenon basis gravity retaining wall utilizes mill's prefabricated part of producing in advance, utilize the prefabricated part concatenation to form the wall body, utilize a plurality of foundation member concatenations to form the basis, at the in-process of construction, only need hoist or cast in situ to lower basis, its requirement greatly reduced to the construction site, and because the structural strength of prefabricated part has reached expected intensity, consequently just have very high structural strength after the concatenation is accomplished, can shorten the time limit for a project greatly.

Drawings

FIG. 1 is a schematic view of a low tenon foundation gravity retaining wall of the present application from a first perspective;

FIG. 2 is a schematic view of the construction of a portion of a wall of a low-tenon foundation gravity retaining wall according to an embodiment of the present invention;

FIG. 3 is a schematic view of the construction of the upper foundation of the low tenon foundation gravity retaining wall of the present embodiment from a first perspective;

FIG. 4 is a schematic structural view of an upper foundation of the low tenon foundation gravity retaining wall of the present embodiment from a second perspective;

FIG. 5 is a schematic view of the construction of a lower foundation of the low tenon foundation gravity retaining wall according to the embodiment of the present application from a first perspective;

FIG. 6 is a schematic structural view of a lower foundation of the gravity retaining wall with a low tenon foundation according to the embodiment of the present application from a second perspective;

FIG. 7 is a schematic view of a low tenon foundation gravity retaining wall from a second perspective in an embodiment of the present application;

FIG. 8 is a schematic view of the first perspective structure of the first foundation blocks of a low tenon foundation gravity retaining wall according to an embodiment of the present application;

FIG. 9 is a schematic structural view from a second perspective of the first foundation blocks of a low tenon foundation gravity retaining wall in accordance with an embodiment of the present application;

FIG. 10 is a schematic view of the second foundation block of the low tenon foundation gravity retaining wall according to the embodiment of the present application from a first perspective;

FIG. 11 is a schematic structural view from a second perspective of a second foundation block of a low tenon foundation gravity retaining wall in accordance with an embodiment of the present application;

FIG. 12 is a schematic view of a first block of a low tenon foundation gravity retaining wall according to an embodiment of the present application from a first perspective;

FIG. 13 is a schematic view of a second perspective configuration of a first precast block of a low tenon foundation gravity retaining wall according to an embodiment of the present application;

FIG. 14 is a schematic view of a second block of the low tenon foundation gravity retaining wall of the present embodiment shown in a first perspective;

FIG. 15 is a schematic view of a second block of a low tenon foundation gravity retaining wall according to an embodiment of the present application from a second perspective;

FIG. 16 is a schematic view of the construction of another low tenon foundation gravity retaining wall of the present application from a first perspective;

FIG. 17 is a schematic view of a second perspective construction of another low tenon foundation gravity retaining wall of the present embodiment;

FIG. 18 is a schematic view of a first perspective configuration of a first precast block of another low tenon foundation gravity retaining wall of the present embodiment;

FIG. 19 is a schematic view of a second perspective construction of a first precast block of another low tenon foundation gravity retaining wall of the present embodiment;

FIG. 20 is a schematic view of a second block of another low tenon foundation gravity retaining wall of the present application from a first perspective;

fig. 21 is a second perspective view of a second precast block of another low-tenon foundation gravity retaining wall according to the embodiment of the present application.

Reference numerals: 100-low tenon foundation gravity retaining wall; 101-a greening groove; 110-lower basis; 120-base; 121-a first basic block; 1211 — a second bump; 1212-a second base; 122-a second basic block; 130-a wall body; 131-a first preform block; 1311 — first bumps; 13111 — second side; 13112-a first side; 1312-a first base; 132-a second preform block; 141-a first limit structure; 142-a second limit structure; 143-a third limiting structure; 144-a fourth limit structure; 150-foundation.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that various combinations of the specific technical features in the embodiments described in the detailed description can be made without contradiction, for example, different embodiments can be formed by different combinations of the specific technical features, and in order to avoid unnecessary repetition, various possible combinations of the specific technical features in the present application are not separately described.

It should be noted that the terms "first \ second \ third" referred to in the embodiments of the present application are only used for distinguishing similar objects, and do not represent a specific ordering for the objects, and it should be understood that "first \ second \ third" may exchange a specific order or sequence order if allowed. It should be understood that "first \ second \ third" distinct objects may be interchanged under appropriate circumstances such that the embodiments of the application described herein may be implemented in an order other than those illustrated or described herein.

In the embodiments of the present application, the top and bottom surfaces are referenced to the position after the low tenon foundation gravity retaining wall is formed. The top and bottom surfaces are only used to illustrate the relative positional relationship between the respective components, and if necessary, the top and bottom surfaces may not be completely located right above or right below the vertical direction, or may be two opposite directions such as obliquely above or obliquely below.

The embodiment of the application provides a low tenon basis gravity retaining wall, gravity retaining wall generally includes wall and basis, the wall setting on the basis top and with basic fixed connection, the basis is fixed with ground, the wall is laminated in the side slope in order to undertake the effect of stopping soil body or rock slump on the side slope, also is called gravity retaining wall consequently. The foundation is provided with tenons, the tenons with the height smaller than 0.1m are low tenons, the foundation with the low tenons is a low tenon foundation, and the corresponding gravity retaining wall of the foundation is a low tenon gravity retaining wall.

As shown in fig. 1, the low tenon foundation gravity retaining wall 100 includes a wall body 130, an upper foundation 120, and a lower foundation 110.

As shown in fig. 2, the wall 130 is formed by splicing a plurality of prefabricated members, the bottom surface of the spliced wall 130 is provided with a first limiting structure 141, and the prefabricated member includes a first prefabricated block 131 with an L-shaped longitudinal section. It should be noted that the longitudinal section in the present application refers to a section parallel to the surface of the wall body that bears the soil or rock in the normal use state of the low-tenon foundation gravity retaining wall 100.

As shown in fig. 3, the upper base 120 is formed by splicing a plurality of upper base members to support the wall 130, and the top surface of the spliced upper base 120 has a second limit structure 142 for cooperating with the first limit structure 141 to limit the relative displacement between the wall 130 and the upper base 120. The wall 130 is built on the upper foundation 120, the wall 130 is stably built on the upper foundation 120 by the cooperation of the first limiting structure 141 and the second limiting structure 142, and the bottom surface of the upper foundation 120 is provided with a third limiting structure 143 (see fig. 4).

As shown in fig. 1, the lower foundation 110 is used for bearing the upper foundation 130, and the lower foundation 110 is hoisted or cast in place and forms a low-tenon foundation with the upper foundation 130; that is, the low-tenon foundation includes two portions, of which the top surface of the lower foundation 110 has a fourth stopper structure 144 (see fig. 5) for cooperating with the third stopper structure 143 to restrict the relative displacement of the upper foundation 120 and the lower foundation 110. The upper foundation 120 is built on the lower foundation 110, and the upper foundation 120 is stably built on the lower foundation 110 by the cooperation of the third limiting structure 143 and the fourth limiting structure 144; the bottom surface of the lower base 110 (see fig. 6) is adapted to be fitted to the surface of the foundation 150 to limit the subsidence of the lower base 110. The surface of the foundation 150 may be the bottom surface of a foundation pit dug downward from the ground level, and the bottom surface of the lower foundation 110 is attached to the surface of the foundation 150, i.e., it is said that there is no macroscopic gap between the two, thereby ensuring the stability of the fixation of the lower foundation 110 and the foundation 150. Specifically, the bottom surface of the lower foundation 110 and the surface of the foundation 150 may be both flat surfaces, so as to facilitate the attachment of the two. In order to better prevent the lower base 110 from sinking, the width of the bottom surface of the lower base 110 is not less than the width of the wall 130. The width in this application refers to a distance extending in a horizontal direction perpendicular to a longitudinal direction, and the length is a direction extending the longest distance in a horizontal cross section.

According to the embodiment of the application, the prefabricated parts are spliced to form the wall body 130, the plurality of upper foundation pieces are spliced to form the upper foundation 120, in the construction process, only the lower foundation 110 needs to be hoisted or cast in place, the requirement on a construction site is greatly reduced, and the structural strength of the prefabricated parts reaches the expected strength, so that the prefabricated parts have high structural strength after splicing is completed, and the construction period can be greatly shortened.

As shown in fig. 7, in the process of constructing the low tenon foundation gravity retaining wall 100, a foundation pit needs to be excavated to form a foundation 150 on the bottom surface of the foundation pit, the ground is firstly cleaned and leveled, then foundation soil is excavated to the position of the bottom of the preset lower foundation 110, and in order to meet the construction requirement and the backfill requirement, the distance of 0.2 to 1m is properly extended from both sides of the position of the bottom of the preset lower foundation 110, specifically, the distance of 0.5m can be extended. In order to prevent the side wall of the foundation pit from collapsing, the side wall of the foundation pit needs to be sloped, and a person skilled in the art can set the slope ratio to be 1: and (3) temporarily releasing the slope, wherein the slope ratio can be 1: 0.7. After the lower foundation 110 is manufactured, or the upper foundation 120 is built, or the wall 130 is built, the foundation pit needs to be backfilled, and concrete blocks or broken stones or high-strength soil and the like can be adopted to backfill the foundation pit so as to ensure the stable structure of the foundation 150 after backfilling.

In order to ensure that the sinking speed of the wall 130 is not higher than a preset value during the use process, the lower foundation 110 needs to be laid on the foundation. In order to ensure the bearing capacity of the lower foundation 110, the height of the lower foundation 110 can be set to be 0.5-1.0 m. In order to improve the bearing capacity of the upper foundation 120 and the wall 130, the lower foundation 110 may be integrally formed, and the lower foundation 110 may extend in a strip shape along the length direction of the wall 130. The fourth position-limiting structure 144 is located on the top surface of the lower foundation 110, in order to increase the matching range between the fourth position-limiting structure 144 and the third position-limiting structure 143 and to reduce the construction difficulty, the fourth position-limiting structure 144 continuously extends along the length direction of the lower foundation 110, and the length of the fourth position-limiting structure 144 is the same as that of the upper foundation 120. Of course, the fourth limiting structure 144 may also be in a multi-stage interval distribution form, and it is only necessary to ensure the construction precision to ensure that it can cooperate with the third limiting structure 143 to limit the relative displacement between the upper foundation 120 and the lower foundation 110. In order to improve the production accuracy of the lower foundation 110 and shorten the construction period of the construction work, the lower foundation 110 may be produced in a factory prefabricated manner, and after the structural strength of the lower foundation 110 reaches a desired strength, it is hoisted to the foundation on the site so that the bottom surface of the lower foundation 110 is attached to the surface of the foundation. Of course, since the lower foundation 110 is too large in structure and difficult to carry, the lower foundation 110 can be made in a cast-in-place manner on a construction site in the construction process, a mold is only required to be built on the foundation, concrete is poured into the mold, and the mold can be removed after the strength of the concrete in the mold reaches the desired strength, so that the lower foundation 110 is formed. Of course, in order to improve the structural strength of the lower foundation 110, the steel keel may be laid in the receiving space formed by the mold after the mold is constructed, and then the concrete may be poured, so that the formed reinforced concrete structure has higher strength, and can more stably bear the upper foundation 120 and the wall 130.

With continued reference to fig. 7, those skilled in the art determine the widths of the top surface and the bottom surface of the lower foundation 110 according to the slope situation of the site and the construction requirement, and the width of the top surface of the lower foundation 110 may be the same as the width of the wall 130 or larger than the width of the wall 130; the width of the bottom surface of the lower base 110 may be the same as the width of the top surface of the lower base 110, or may be greater than the width of the top surface of the lower base 110. Specifically, in this embodiment, the top surface of the lower base 110 has the same width as the wall 130, and the bottom surface of the lower base 110 has the same width as the top surface of the lower base 110. Of course, in order to increase the load bearing capacity of the lower foundation 110, and to increase the contact area between the bottom surface of the lower foundation 110 and the foundation 150 to better limit the settlement of the lower foundation 110 during use, the width of the bottom surface of the lower foundation 110 may be increased to increase the area of the bottom surface of the lower foundation 110. Due to different slopes of the side slope, a person skilled in the art needs to determine the inclination angle of the lower foundation 110 when manufacturing the lower foundation 110, so as to ensure that the upper foundation 120 and the wall 130 built on the lower foundation 110 can be attached to the side slope or close to the side slope to prevent soil or rock on the side slope from collapsing.

As shown in fig. 1, after the lower foundation 110 is built, pieces of the upper foundation 120 need to be built on the lower foundation 110 to form the upper foundation 120. In order to improve productivity and shorten a construction period, the upper base member may be produced in a prefabricated manner at a factory, and in order to improve a coupling strength with the wall body 130, the upper base member includes a first base block 121 (see fig. 3) having an L-shaped longitudinal section. The first base block 121 includes a second base 1212 and a second projection 1211 which are integrally formed, and an upper portion of the second projection 1211 is used for being inserted into the wall 130 and splicing with the wall 130 to improve the connection strength between the wall 130 and the upper base 120. The second base 1212 is disposed adjacent to the second bump 1211, a bottom surface of the second base 1212 and a bottom surface of the second bump 1211 are connected to form a bottom surface of the upper base 120, the bottom surface of the second base 1212 and/or the bottom surface of the second bump 1211 are/is provided with a third limiting structure 143 (see fig. 4), a top surface of the second base 1212 is lower than a top surface of the second bump 1211 and/or the top surface of the second bump 1211 is/are provided with a second limiting structure 142, the top surface of the second base 1212 is adjacent to a side surface of the second bump 1211, and a side surface of the second bump 1211 and the top surface of the second base 1212 form an L-shaped groove for placing the first prefabricated block 131.

During the process of building the upper foundation 120, the first foundation blocks 121 need to be connected in sequence to form the upper foundation 120, so that the third limiting structures 143 on the bottom surface of the first base 1312 and/or the top surface of the first protruding block 1311 and the second limiting structures 142 on the top surface of the lower foundation 110 cooperate to limit the relative displacement between the lower foundation 110 and the upper foundation 120. Because first foundation block 121 quality is great, in order to build in order to form foundation 120 for convenience, can adopt the mode of hoist to build, for convenience hoist and mount, need set up the preformed hole on first foundation block 121 and be used for installing structures such as couple, perhaps offer hoist and mount groove etc. on first foundation block 121. In the upper foundation 120 formed by splicing the first foundation blocks 121, the first protrusions 1311 and the first bases 1312 are spaced apart, so that the top of the upper foundation 120 is serrated and can be connected with the wall 130 in a staggered manner to improve the connection strength between the wall 130 and the upper foundation 120.

Referring to fig. 1, after the upper foundation 120 is built, a prefabricated member is built on the upper foundation 120 to form a wall 130. The prefabricated member is produced in a factory prefabrication mode, in order to improve the connection strength between the prefabricated members, the prefabricated member comprises a first prefabricated block 131 (see fig. 12) with an L-shaped longitudinal section, the first prefabricated block 131 comprises a first base 1312 and a first bump 1311 which are integrally formed, the first base 1312 and the first bump 1311 are arranged adjacently, the bottom surface of the first base 1312 and the bottom surface of the first bump 1311 are flush and integrally connected, and are respectively provided with a first limiting structure 141 (see fig. 13), the top surface of the first base 1312 is lower than the top surface of the first bump 1311, the top surface of the first base 1312 is adjacent to a first side surface 13112 of the first bump 1311, and the first side surface 13112 and the top surface of the first base 1312 form an L-shaped groove; the first bump 1311 has a second side 13111 opposite to the first side 13112, the second side 13111 forming an L-shaped corner with a bottom surface of the first bump 1311; the L-shaped corner of each first precast block 131 is adapted to be placed in the L-shaped groove of another first precast block 131 to be spliced to form at least part of the wall 130.

During the construction of the wall 130, a layer of the first prefabricated block 131 is constructed on the foundation 120, and then the first prefabricated block 131 is constructed layer by layer to form the wall 130. Because first prefabricated section 131 is great in quality, in order to conveniently build in order to form wall 130, can adopt the mode of hoist and mount to build, in order to conveniently hoist and mount, need set up the preformed hole on first prefabricated section 131 and be used for installing structures such as couple, perhaps offer hoist and mount groove etc. on first prefabricated section 131. Specifically, the first precast block 131 at the lowest layer is built between two adjacent second bumps 1211 of the upper foundation 120, and the bottom surface of the first precast block 131 is attached to the top surface of the second base 1212 of the upper foundation 120, that is, the L-shaped corner of the first precast block 131 at the lowest layer is spliced with the L-shaped groove of the upper foundation 120; on the above, the first precast block 131 on the upper layer is built on the first precast block 131 on the lower layer, the L-shaped corner of the first precast block 131 on the upper layer is spliced with the L-shaped groove of the first precast block 131 on the lower layer, that is, the first precast block 131 on the upper layer is placed between the adjacent first bumps 1311 on the first precast block 131 on the lower layer, and the bottom surface of the first precast block 131 on the upper layer is attached to the top surface of the first base 1312 of the first precast block 131 on the lower layer and the top surface of the first bump 1311 of the other first precast block 131 on the lower layer; the wall 130 formed by splicing the prefabricated blocks in the mode has the advantages that the top surface of each layer of the first prefabricated block 131 is in a sawtooth shape, and each layer of the first prefabricated block 131 is connected with the bottom layer in a staggered mode, so that the whole wall 130 has high structural stability.

In order to ensure the structural stability of the wall 130 and improve the slope landslide resistance of the wall 130, it is necessary that the first prefabricated sections 131 do not have a large gap between adjacent first prefabricated sections 131 in a state of being tightly attached to form the wall 130, so that the length of the first protruding block 1311 on the first prefabricated section used herein is the same as the length of the first base 1312, the width of the first protruding block 1311 is the same as the width of the first base 1312, and the height of the first protruding block 1311 is twice as high as the height of the first base 1312.

As shown in fig. 1, in the process of building the wall 130 layer by layer, the top surface of the wall 130 is always indented, and in order to make the top surface of the wall 130 be a plane, a second prefabricated block 132 needs to be built on the top of the wall 130. Because second prefabricated section 132 quality is great, in order to conveniently build in order to form wall 130, can adopt the mode of hoist and mount to build, in order to conveniently hoist and mount, need set up the preformed hole on second prefabricated section 132 and be used for installing structures such as couple, perhaps set up hoist and mount groove etc. on second prefabricated section 132. The longitudinal section of the second prefabricated section 132 is rectangular (see fig. 14), the height of the second prefabricated section 132 is the same as that of the first base 1312, and the length of the second prefabricated section 132 is the sum of the lengths of the first base 1312 and the first bump 1311; each second preform block 132 is adapted to be placed over the top surface of the L-shaped recess of one first preform block 131 and the first protrusion 1311 of another first preform block 131 to form the top of the wall 130. Specifically, the bottom surface of the second prefabricated block 132 is provided with a first limiting structure 141, and in a state that the second prefabricated block 132 and the first prefabricated block 131 are built to form the wall 130, the first limiting structure 141 on the second prefabricated block 132 and the second limiting structure 142 on the first prefabricated block 131 cooperate to limit the relative displacement of the second prefabricated block 132 and the first prefabricated block 131.

In order to improve the efficiency of factory processing and improve the utilization rate of the mold in the factory, the length of the second base 1212 of the first base block 121 is the same as the length of the first base 1312, the height of the second base 1212 is the same as the height of the first base 1312, the length of the second bump 1211 is the same as the length of the first bump 1311, and the height of the second bump 1211 is the same as the height of the first bump 1311. In the state that the upper foundation 120 formed in this way is built with the first precast block 131, the top surface of the second bump 1211 is just flush with the top surface of the first base 1312, and in the state that the first precast block 131 of the first layer is clamped between the adjacent second bumps 1211, the first precast block 131 of the second layer can be clamped between the adjacent first bumps 1311, and the bottom surface is respectively attached to the top surfaces of the first base 1312 and the second bump 1211.

As shown in fig. 3, since the length of the bottom surface of the first prefabricated block 131 is the sum of the lengths of the first protruding blocks 1311 and the first bases 1312, when the first prefabricated block 131 is built between the adjacent first foundation blocks 121, the adjacent first foundation blocks 121 cannot be closely attached to each other, the distance between the first foundation blocks 121 is the length of the second protruding blocks 1211, and the second foundation blocks 122 need to be filled between the adjacent first foundation blocks 121 to keep the structural integrity of the upper foundation 120. The longitudinal section of the second base block 122 is rectangular (see fig. 9), the length of the second base block 122 is the same as the length of the second projection 1211, and the height of the second base block 122 is the same as the height of the second base 1212; second foundation block 122 is configured to be disposed below first prefabricated block 131 and between adjacent first foundation blocks 121, a second limiting structure 142 is disposed on a top surface of second foundation block 122, and a third limiting structure 143 is disposed on a bottom surface of second foundation block 122 (see fig. 10). Second foundation block 122 is built on lower foundation 110, third limiting structure 143 on second foundation block 122 is matched with fourth limiting structure 144 on upper foundation 120, and second foundation block 122 is filled between adjacent first foundation blocks 121, at this time, the top surface of second foundation block 122 is just flush with the top surface of second base 1212, so that the bottom surface of first prefabricated block 131 just fits to the top surfaces of second base 1212 and second foundation block 122 when first prefabricated block 131 is built on adjacent second projection 1211.

Specifically, in the present application, the heights of the first base 1312 and the second base 1212 are both 0.5m, the lengths of the first base 1312 and the second base 1212 are both 1.0m, the heights of the first bump 1311 and the second bump 1211 are both 1.0m, and the lengths of the first bump 1311 and the second bump 1211 are both 0.5 m. The width of the wall 130 is determined by those skilled in the art according to actual requirements, the width of the wall 130 may be 0.5-4.0 m, the widths of the first base 1312 and the first bump 1311 are the same as the width of the wall 130, and the widths of the second base 1212 and the second bump 1211 are not less than the width of the wall 130.

Of course, in other embodiments of the present application, in order to improve the structural stability of the upper foundation 120, the first foundation block 121 and the second foundation block 122 may be an integral structure, and it is only necessary to extend the length of the second base 1212 to the sum of the length of the original second base 1212 and the length of the original second foundation block 122 in the factory production process.

In order to improve the connection strength between the lower foundation 110 and the upper foundation 120, an adhesive may be coated on the bottom surface of the upper foundation and/or the top surface of the lower foundation 110 during the process of constructing the upper foundation, and the upper foundation and the lower foundation 110 may be firmly bonded together after the adhesive is cured. Similarly, in order to improve the connection strength between the upper foundation 120 and the wall 130, during the process of building the first prefabricated section 131, an adhesive may be applied to the top surface of the upper foundation 120 and/or the bottom surface of the first prefabricated section 131, and after the adhesive is cured, the upper foundation and the wall 130 may be firmly bonded together. Similarly, in order to improve the structural strength of the wall 130, during the process of building the prefabricated members layer by layer to form the wall 130, the top surface of the lower prefabricated member and/or the bottom surface of the upper prefabricated member may be coated with the adhesive, and after the adhesive is cured, the prefabricated members of the adjacent layers may be firmly bonded together. Specifically, the adhesive may be an epoxy adhesive. The adhesive has the characteristics of firm bonding and high curing speed, and is beneficial to improving the connection strength of the upper foundation 120 and the lower foundation 110 and shortening the construction period.

In order to ensure that the splicing among different components is firm and convenient to produce, the first limiting structure 141 and the third limiting structure 143 are both tenons and tenons, the second limiting structure 142 and the fourth limiting structure 144 are both mortise and tenon, the first limiting structure 141 and the second limiting structure 142 are riveted, and the third limiting structure 143 and the fourth limiting structure 144 are riveted. In order to facilitate the riveting between the tenon and the mortise, the tenon is designed into a trapezoidal table shape or a circular table shape. In order to ensure that the tenon and the mortise have good positioning effect, the tenon and the mortise are in small clearance fit or transition fit in the state of fit. In order to ensure that the tenon is not easy to slide out of the mortise under the action of external force, the height of the tenon is set to be 0.06 to 0.16 times of the height of the first base 1312, and specifically, the height of the tenon can be 0.1 times of the height of the first base 1312; in order to further ensure that the tenon is not easy to slide out of the mortise under the action of external force, the slope ratio of the side wall of the tenon is 1: 1 ~ 2 to the tenon can guarantee still be difficult to follow the roll-off in the fourth of twelve earthly branches groove when inserting comparatively easily to fourth of twelve earthly branches inslot. Due to the existence of assembly tolerance, the depth of the mortise slot is slightly larger than the height of the tenon so as to ensure that the tenon can be completely inserted into the mortise slot, and specifically, the depth of the mortise slot is 1-5 cm larger than the height of the tenon.

For convenience of construction, the fourth limiting structure 144 is configured as a strip-shaped groove with the same length as the lower foundation 110, and for matching with the fourth limiting part, all the third limiting structures 143 on the bottom surface of the upper foundation 120 together form a strip-shaped projection with the same length as the upper foundation 120, and since the projection and the groove have enough length matching, the projection and the groove are difficult to generate relative displacement, and the connection stability between the upper foundation 120 and the lower foundation 110 is ensured.

As shown in fig. 16, in order to enhance greening of the low-tenon foundation gravity retaining wall 100, a greening groove 101 may be provided on a side surface of a wall 130, and the greening groove 101 may be provided on a prefabricated member. Specifically, in order to improve the greening effect, each prefabricated member has a greening groove 101, that is, the greening groove 101 is disposed on each of the first prefabricated member 131 (see fig. 18) and the second prefabricated member 132 (see fig. 20). In order to make the plants in the greening groove 101 receive sunlight well, the greening groove 101 is protruded from the prefabricated member (see fig. 17). In order to make the greening groove 101 have a large accommodation capacity, the length of the greening groove 101 provided on the first precast block 131 is the same as that of the first precast block 131 (see fig. 19), and at the same time, the length of the greening groove 101 provided on the second precast block 132 is the same as that of the second precast block 132 (see fig. 21). The green tank 101 can be produced simultaneously when the preform is produced in a factory, so that the green tank 101 has high processing precision and is convenient to process.

In summary, in the embodiment of the present application, the wall 130 is formed by splicing the prefabricated members, the upper foundation 120 is formed by splicing the plurality of upper foundation members, during the construction process, only the lower foundation 110 needs to be hoisted or cast in place, the requirement on the construction site is greatly reduced, and the prefabricated members have high structural strength after being spliced due to the fact that the structural strength of the prefabricated members reaches the expected strength, so that the construction period can be greatly shortened.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. Low tenon basis gravity retaining wall, its characterized in that includes:

the prefabricated parts are used for being spliced to form a wall body, the bottom surface of the wall body is provided with a first limiting structure, and each prefabricated part comprises a first prefabricated block with an L-shaped longitudinal section;

the top surface of the upper foundation is provided with a second limiting structure which is matched with the first limiting structure to limit the relative displacement between the wall body and the upper foundation, and the bottom surface of the upper foundation is provided with a third limiting structure;

the lower foundation is used for bearing the upper foundation and forming the low tenon foundation with the upper foundation, the top surface of the lower foundation is provided with a fourth limiting structure which is used for being matched with the third limiting structure to limit the relative displacement of the upper foundation and the lower foundation, the bottom surface of the lower foundation is used for being attached to the surface of the foundation, and the width of the bottom surface of the lower foundation is not less than that of the wall body.

2. The low-tenon foundation gravity retaining wall as claimed in claim 1, wherein the first precast block comprises a first base and a first protrusion which are integrally formed, the first base is disposed adjacent to the first protrusion, the bottom surface of the first base is flush with and integrally connected to the bottom surface of the first protrusion, and each of the first base and the first protrusion is provided with the first limiting structure, the top surface of the first base is lower than the top surface of the first protrusion, the top surface of the first base is adjacent to a first side surface of the first protrusion, and the first side surface and the top surface of the first base form an L-shaped groove; the first bump is provided with a second side surface opposite to the first side surface, and the second side surface and the bottom surface of the first bump form an L-shaped corner; the L-shaped corner of each first precast block is used for being placed in an L-shaped groove of another first precast block to be spliced to form at least part of the wall body.

3. The low tenon foundation gravity retaining wall of claim 2 wherein the length of said first projection is the same as the length of said first base, the width of said first projection is the same as the width of said first base, and the height of said first projection is 2 times the height of said first base.

4. The low tenon foundation gravity retaining wall of claim 3 wherein said precast member further comprises a second precast block having a rectangular longitudinal cross section, said second precast block having a height equal to the height of said first base, said second precast block having a length equal to the sum of the lengths of said first base and said first projection; each second precast block is used for being placed on the top surfaces of the L-shaped groove of one first precast block and the first lug of the other first precast block to form the top of the wall body.

5. The low-tenon foundation gravity retaining wall according to claim 3, wherein the upper foundation member includes a first foundation block having an L-shaped longitudinal section, the first foundation block includes a second base and a second projection which are integrally formed, the second base is disposed adjacent to the second projection, a bottom surface of the second base and a bottom surface of the second projection are integrally formed to form the bottom surface of the upper foundation, a top surface of the second base is lower than a top surface of the second projection, the top surface of the second base and the top surface of the second projection are both provided with the second limiting structure, the top surface of the second base is adjacent to a side surface of the second projection, and a side surface of the second projection and the top surface of the second base form an L-shaped groove for placing the first prefabricated block.

6. The low tenon foundation gravity retaining wall of claim 5 wherein said second base has a length equal to a length of said first base, said second base has a height equal to a height of said first base, said second projection has a length equal to a length of said first projection, and said second projection has a height equal to a height of said first projection.

7. The low-tenon foundation gravity retaining wall of claim 6, wherein the upper base member further comprises a second base block having a rectangular longitudinal section, the length of the second base block being the same as the length of the second projection, the height of the second base block being the same as the height of the second pedestal; the second foundation block is used for being arranged below the first precast block and between the first foundation block, the top surface of the second foundation block is provided with the second limiting structure, and the bottom surface of the second foundation block is provided with the third limiting structure.

8. The low-tenon foundation gravity retaining wall of claim 2, wherein said first stop structure and said third stop structure are both tenons and said second stop structure and said fourth stop structure are both mortise slots.

9. The low-tenon foundation gravity retaining wall of claim 8 wherein the height of said tenon is from 0.06 to 0.16 times the height of said first pedestal and the depth of said mortise slot is no less than the height of said tenon.

10. The low tenon foundation gravity retaining wall of claim 1 wherein said wall body has a greening groove in a side thereof, said greening groove being provided in at least a portion of said prefabricated member, said greening groove extending out of said prefabricated member.

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