CN212223934U - Wall type foundation - Google Patents

Abstract

The utility model provides a wall type foundation, which is provided with an integral foundation unit; the enclosing wall of the integral foundation unit comprises a plurality of side walls; the plurality of side walls form an integral polygonal cylindrical foundation structure; the top sealing is positioned on the wall and connected with the side wall. By arranging the integral enclosing wall, the method avoids seams formed by sequentially connecting the enclosing walls, thereby avoiding various problems caused by the seams of the enclosing walls; by adopting the hollow closed-loop structure with a plurality of side walls connected, after being implanted into soil, the bearing capacity is provided through the interaction with the soil on two sides of the surrounding side walls and the soil on the lower ends of the surrounding side walls, the friction force between the inner surface and the outer surface of the wall is fully utilized, the bearing capacity of the foundation is increased, the stability of the structure is increased, and the structure is safe and reliable; meanwhile, the transverse tension on the side wall is realized by capping the positioning cover on the enclosing wall, so that the bearing capacity of the whole integral foundation unit is greatly improved, and the integral foundation unit has better economical efficiency and practicability.

Description

Wall type foundation

Technical Field

The utility model relates to a building foundation technical field, concretely relates to wall formula basis.

Background

The existing pile group foundation and open caisson foundation are about 30-70 meters long, the diameter of the cross section is about 6-9 meters, the whole foundation is mostly a prefabricated solid pile foundation structure, a method of sinking by self weight is mostly adopted during construction, the construction period is long, the requirement on geology is high, prefabricated parts are difficult to transport, and the problem of difficulty in hoisting equipment is caused, so that the aspects of low construction efficiency and long construction period are caused.

Simultaneously, current underground foundation pours the connection according to the preface with every side wall respectively, and there is the seam inevitable between the side wall, leads to the pressurized inequality of side wall easily, and the seam spreads easily, and the condition of infiltration or leaking appears simultaneously, seriously influences the quality of whole basis. In order to avoid the defects in the prior art, the integrated wall type foundation which is simple in structure, low in material consumption, convenient to construct, safe and reliable is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a wall formula basis.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a wall foundation comprising an integral foundation unit; the integral base unit comprises an enclosing wall and a capping; the enclosure wall comprises a plurality of side walls; a plurality of said side walls forming a unitary polygonal tubular foundation structure; the top sealing is positioned on the wall and connected with the side wall.

As a further improvement of the present invention, it is single that the integral foundation unit constitutes an integral closed supporting foundation structure or is adjacent to it the integral foundation unit is connected according to the preface to form an integral closed supporting foundation structure.

As a further improvement of the utility model, the reinforcement cage body in the enclosure wall is the integral cage body structure matched with the enclosure shape.

As a further improvement of the utility model, a partition wall is also arranged; the partition wall is arranged at the upper part in the enclosing wall; the outer end of the partition wall is connected with the joint of the enclosing wall.

As a further improvement of the utility model, the enclosing wall is of a hexagonal structure, and the partition wall is provided with three side walls; the outer ends of the side supporting walls are respectively connected with the joint of the enclosing walls at intervals.

As a further improvement of the utility model, the inner side of the top of the wall is also provided with an extension part; the extension portion abuts against the capping portion.

As a further improvement of the utility model, the extension is for following the circumference at enclosure top sets up chamfer or dome haunched structure.

As a further improvement of the present invention, the capping and the enclosing wall top are of an integral structure.

As a further improvement, the cavity both sides and the lower extreme of enclosure all are equipped with the slip casting pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the integral enclosing wall, the method avoids seams formed by sequentially connecting the enclosing walls, thereby avoiding various problems caused by the seams of the enclosing walls; by adopting the hollow closed-loop structure with a plurality of side walls connected, after being implanted into soil, the bearing capacity is provided through the interaction with the soil on two sides of the surrounding side walls and the soil on the lower ends of the surrounding side walls, the friction force between the inner surface and the outer surface of the wall is fully utilized, the bearing capacity of the foundation is increased, the stability of the structure is increased, and the structure is safe and reliable; meanwhile, the transverse tension on the side wall is realized by positioning the cover on the enclosing wall to seal the top, so that the bearing capacity of the whole integral foundation unit is greatly improved; compared with the structure of the traditional pile column, the large cofferdam and the bearing platform structure do not need to be matched, the gravity (pile foundation concrete and bearing platform concrete) of a solid foundation structure system is reduced, the construction cost is reduced, and the pile foundation structure has better economical efficiency and practicability.

2. The utility model has simple process of wall type foundation, and rapid and safe construction; the construction adopts a trenching machine, the process and the equipment are mature, special equipment does not need to be customized, and the popularization and the construction are easy; the steel sheet piles are arranged during foundation pit construction, so that effective isolation and protection of the foundation pit can be realized, effective pouring of side walls in the foundation pit is guaranteed, the construction period is greatly shortened, and the construction quality and efficiency of the whole foundation are improved; meanwhile, the steel sheet pile is a recyclable component, so that the construction is more convenient and faster, and the energy is saved and the environment is protected.

3. The utility model discloses annular enclosure wall formula basis can directly face the combination as enclosing the fender structure forever, especially need not set up interim facilities such as steel cofferdam alone again when the aquatic construction, can shorten construction period by a wide margin, has better economic benefits.

4. The utility model discloses the whole support of the whole framework of steel reinforcement of wall formula basis in the work progress is transferred wholly and is installed and take one shot forming; and the concrete adopts the pressure-casting type or conduit type to pour and shape under water, overcome the disadvantage that the traditional foundation disperses and bears the force, has strengthened the stability of the structure, the wall type foundation reinforcing bar can be directly connected with upper pier, tower, cancel the bearing platform structure, reduce the dead load foundation structure system gravity acting on the soil body, have good mechanical properties and better economic efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an integral foundation unit of the present invention;

fig. 2 is a sectional view of the integrated foundation unit of the present invention disposed in a foundation;

fig. 3 is a schematic structural view of a grouting pipe of the enclosure wall of the present invention;

fig. 4 is a schematic view of the structure of the partition wall of the integral foundation unit of the present invention;

fig. 5 is a schematic view of the arrangement of the partition walls of the integral foundation unit of the present invention;

FIG. 6 is a schematic view of a plurality of integral foundation units according to the present invention;

FIG. 7 is a schematic view of a plurality of integral base units of FIG. 6 connected together;

fig. 8 is a schematic view of a reinforcement cage of the present invention;

fig. 9 is a schematic view of the excavation structure of the foundation pit of the present invention;

fig. 10 is a schematic view of the connection structure of the steel sheet pile of the present invention;

FIG. 11 is a cross-sectional view of the steel reinforcement cage connection of the integral foundation unit of the present invention;

fig. 12 is a schematic view of a plurality of integrated base unit connections in an embodiment of the present invention;

fig. 13 is a schematic view of a plurality of integrated base units connected in one embodiment of the present invention;

fig. 14 is a schematic view of a plurality of integral base unit connections in an embodiment of the invention;

the reference numbers in the figures illustrate:

1. an integral base unit; 11. a wall; 111. a side wall; 112. an extension portion; 12. capping; 13. a partition wall; 131. a side wall is supported; 14. a grouting pipe; 2. a foundation; 21. a foundation pit; 3. a reinforcement cage; 4. an air bag; 5. tying a beam; 6. a sleeve; 7. steel sheet piles; 8. a trenching machine.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

With reference to fig. 1 to 14, the present invention provides a wall foundation.

Specifically, with reference to fig. 1, a wall foundation includes an integral foundation unit 1; the integral base unit 1 comprises an enclosing wall 11 and a capping 12; the enclosure wall 11 includes a plurality of side walls 111; a plurality of the side walls 111 form an integral polygonal tubular foundation structure; the capping 12 is positioned on the enclosing wall 11 and connected with the side wall 111.

By arranging the integral enclosing wall, the method avoids seams formed by sequentially connecting the enclosing walls, thereby avoiding various problems caused by the seams of the enclosing walls; by adopting the hollow closed-loop structure with a plurality of side walls connected, after being implanted into soil, the bearing capacity is provided through the interaction with the soil on two sides of the surrounding side walls and the soil on the lower ends of the surrounding side walls, the friction force between the inner surface and the outer surface of the wall is fully utilized, the bearing capacity of the foundation is increased, the stability of the structure is increased, and the structure is safe and reliable; meanwhile, the transverse tension on the side wall is realized by positioning the cover on the enclosing wall to seal the top, so that the bearing capacity of the whole integral foundation unit is greatly improved; compared with the structure of the traditional pile column, the large cofferdam and the bearing platform structure do not need to be matched, the gravity (pile foundation concrete and bearing platform concrete) of a solid foundation structure system is reduced, the construction cost is reduced, and the pile foundation structure has better economical efficiency and practicability.

Furthermore, the reinforcement cage in the enclosing wall 11 is an integral cage structure matched with the shape of the enclosing wall.

Further, the side walls 111 are connected to form a polygonal cylindrical structure.

It should be noted that the wall foundation is a polygonal closed wall structure which is horizontally and vertically formed into a continuous whole, the side walls 111 can be designed into different thicknesses along the vertical direction according to needs, and the thickness of the lower side wall 111 is generally smaller than that of the upper side wall. The cross section of the enclosing wall 11 may generally present a polygonal structure such as a quadrangle, a pentagon or a hexagon.

Further, the capping may be a solid cap or a tie beam structure connected to the side wall 111.

Furthermore, a partition wall 13 is also arranged; the partition wall 13 is provided at an inner upper portion of the enclosure wall 11 to reinforce the rigidity of the foundation structure and increase the load-bearing capacity.

Further, the outer end of the partition wall 13 is connected to the inner side wall of the enclosure 11.

Preferably, the outer end of the partition wall 13 is connected to the junction of the enclosing wall 11.

Further, the height of the partition wall 13 is one third of the height of the enclosing wall 11.

Further, the partition wall 13 coincides with the center axis of the enclosing wall 11.

Preferably, the partition wall 13 is provided with three partition walls 131; the three sidewall walls 131 are uniformly distributed in the circumferential direction.

With reference to fig. 2 and 4, in an embodiment, the enclosing wall 11 has a hexagonal structure, and the partition wall 13 is provided with three side walls 131; the outer ends of the side supporting walls 131 are respectively connected with the joint of the enclosing wall 11 at intervals, so that the enclosing wall 11 is reinforced.

Further, an extension part 112 is further disposed on the inner side of the top of the enclosing wall 11; the extending portion 112 abuts against the capping portion 12 to increase the receiving area of the enclosing wall 11 and the capping portion 12, thereby greatly improving the support of the capping portion 12.

Preferably, the extension 112 is a chamfer or a dome-shaped haunch structure arranged along the circumference of the top of the enclosing wall 11.

With reference to fig. 3, further, grouting pipes 14 are disposed at two sides and a lower end of the cavity of the enclosing wall 11; after the structure of the side wall 111 is formed, the grouting pipe 14 can be used for grouting the soil body, so that the interaction between the structure and the soil body is enhanced, and the purposes of increasing the bearing capacity and maintaining the effect are achieved.

In combination with fig. 6 and 7, in an embodiment, a single said unitary base unit 1 constitutes a unitary closed support infrastructure or a plurality of adjacent said unitary base units 1 are connected in sequence to form a unitary closed support infrastructure.

The integral foundation units 1 are provided in plurality; the outer sides of the side walls 111 of the enclosing walls 11 are respectively connected with the outer sides of the side walls 111 of the adjacent enclosing walls 11.

A tie beam 5 is arranged between the integral foundation units 1; the integral foundation unit 1 can be used as a foundation alone, and a foundation form can be formed by combining a plurality of units.

With reference to fig. 12 and 14, in an embodiment, the outer sides of the side walls 111 of the enclosing walls 11 are respectively connected with the outer sides of the side walls 111 of the adjacent enclosing walls 11 through transition portions; the two ends of the transition part are respectively connected with the adjacent enclosing walls 11.

Referring to fig. 13, in an embodiment, the outer sides of the side walls 111 of the enclosing walls 11 are directly connected to the outer sides of the side walls 111 of the adjacent enclosing walls 11, so as to form a honeycomb-shaped side wall 111 structure.

With reference to fig. 8, 9, 10 and 11, a construction system of a wall foundation comprises a reinforcement cage 3, an air bag 4 and a steel sheet pile 7; the reinforcement cage 3 is arranged corresponding to the shape of the enclosing wall 11; the air bags 4 are respectively arranged in the reinforcing steel bar holes and in the cavity structures of the side walls 111; the upper end and the lower end of the reinforcement cage 3 are both in a closing structure, so that the expansion positioning and the contraction separation of the air bag 4 in the cavity mechanism can be realized; the steel sheet piles 7 are arranged on the inner side and the outer side of the foundation pit 21 and used for achieving isolation and protection of pouring of the enclosure 11.

It should be noted that when the underground continuous wall in the traditional process is grooved, a concrete guide wall is usually arranged on the outer side of the foundation pit 21, but the concrete guide wall is generally 2-3 m and cannot effectively isolate and protect the foundation pit 21, so that the wall of the wall type foundation cannot be completely vertically leveled, and holes are always collapsed, so that the formed wall is bulged or sunken, the construction period is greatly prolonged, and the construction quality and efficiency of the whole foundation are seriously reduced; and after the whole foundation construction is completed, the dismantling of the concrete guide wall wastes time and labor, the construction waste is easily caused, and the treatment is very troublesome.

It should be noted that, because the side wall 111 is of a polygonal structure and the size of the foundation pit 21 is limited, when the reinforcement cage 3 is placed, if the reinforcement cage 3 is not vertically lowered, the reinforcement cage 3 is easily clamped with the foundation pit 21; especially, when the steel reinforcement cage 3 at the bottom layer is placed, the buoyancy of the steel reinforcement cage 3 is uneven due to the fact that the bottom layer is provided with a plurality of water bodies or slurry, the steel reinforcement cage 3 at the upper portion is difficult to place, and the steel reinforcement cage 3 at the upper portion is difficult to connect.

Further, the plurality of reinforcement cages 3 are correspondingly connected from bottom to top in sequence; the air bags 4 in each side wall 111 in the reinforcement cage 3 are sequentially connected from bottom to top, so that the buoyancy of the reinforcement cage 3 can be controlled through the air bags 4.

It should be noted that, when the gasbag 4 was established in steel reinforcement cage 3, make gasbag 4 inflation in the steel reinforcement cage 3 through the gas injection device, can realize increasing the interior buoyancy of the mud of steel reinforcement cage 3 in foundation ditch 21, make the even shrink of gasbag 4 in the steel reinforcement cage 3 through air bleeder, make steel reinforcement cage 3 sink at the uniform velocity in the mud, can realize simultaneously when a plurality of steel reinforcement cages 3 are connected, reduce through the gas volume of the gasbag 4 of the different side walls 111 of adjustment and rock, make steel reinforcement cage 3 transfer at the uniform velocity.

Further, the air bag 4 is fixedly connected from bottom to top through a connecting belt, when the whole reinforcement cage 3 is placed, the air in the air bag 4 is released, and the air bag 4 is pulled upwards, so that the air bag 4 is separated from the closing structure of the reinforcement cage 3 to complete recovery; the use is flexible, convenient and fast, and more economical and practical.

Furthermore, the adjacent steel sheet piles 7 are hooked through the hooks on the two side edges respectively, so that connection and position adjustment are facilitated, and construction is more convenient and faster.

The construction method of the wall type foundation comprises the following steps:

s1, construction preparation: leveling a field, removing impurities, and compacting by ramming; meanwhile, the position of a mud pit, a steel bar processing field, a construction access and the like are reasonably arranged, and materials and equipment required by construction are arranged;

s2, determining the basic position and the edge: determining the excavation position and size of a foundation pit 21 of the enclosure wall 11 by using a total station and a steel ruler, correspondingly inserting and driving steel sheet piles on the inner side of the foundation pit 21 to be excavated, then inserting and driving outer steel sheet piles, and sequentially connecting the steel sheet piles to realize the isolation and protection of the foundation pit excavation;

s3, excavating a foundation pit: the trenching machine 8 enters a field and excavates the position of a foundation pit 21 of the enclosure 11 in the steel sheet pile downwards to enable the foundation pit 21 to reach a preset elevation;

s4, implanting a fence reinforcement cage; the enclosure steel reinforcement cage is of an integral steel reinforcement framework structure in the shape of the cross section of the enclosure, the upper end and the lower end of the enclosure steel reinforcement cage are of a closing structure, and an air bag 4 is arranged in the hollow steel reinforcement cage body of each side edge of the enclosure steel reinforcement cage corresponding to the side wall 111;

the method comprises the following steps that (1) a crawler crane enters a field, a bottom reinforcement cage is hoisted and vertically placed into a foundation pit 21, an air bag 4 of the bottom reinforcement cage is in an expansion state at the moment and is placed into slurry of the foundation pit 21, the bottom reinforcement cage 3 is lifted upwards under the action of buoyancy, the upper end of the reinforcement cage is slightly higher than the top of the foundation pit 21, then the reinforcement cage and the air bag 4 are adjusted, and the bottom reinforcement cage is statically waited to stably float in the foundation pit 21;

then hoisting the other middle steel reinforcement cage to the position above the bottom steel reinforcement cage through the crawler crane, and fixedly connecting the connecting part on the middle steel reinforcement with the connecting part on the bottom steel reinforcement through the sleeve 6, so as to realize the upper and lower fixed connection of the two steel reinforcement cages; meanwhile, the air bags 4 in each side wall 111 of the middle reinforcing steel bar are respectively and fixedly connected with the air bags 4 corresponding to the bottom reinforcing steel bars up and down;

finally, adjusting the air bags 4 in the middle reinforcement cage and the bottom reinforcement to enable the upper end of the middle reinforcement to be slightly higher than the top of the foundation pit 21; similarly, positioning and mounting the top reinforcement cage to form an integral cage body structure; simultaneously adjusting the position of the reinforcement cage, axially positioning the reinforcement cage and the foundation 2 at the inner side of the foundation pit 21 through a positioning pin, and extracting the air bag 4 in the reinforcement cage 3;

s5, pouring concrete into the enclosing wall: respectively pouring concrete slurry into the foundation pit 21 of the enclosing wall 11 at high pressure through a plurality of guide pipes, extruding the slurry in the foundation pit out of the foundation pit, always keeping the buried depth of the concrete guide pipes to be more than 2m during pouring, observing for about 30 minutes after the concrete pouring is finished, and slowly pulling out the guide pipes after the concrete surface is unchanged; meanwhile, a reinforcing steel bar bound with the capping 12 is reserved at the top of the enclosing wall 11;

s6, recovering the steel sheet piles: pulling out all the steel sheet piles at the inner side and the outer side, recycling the steel sheet piles for reuse, and simultaneously tamping the peripheral foundation 2;

s7, setting of the extending part and the top sealing steel bar framework: excavating the foundation 2 on the inner side of the top of the enclosing wall 11 in the circumferential direction to form a groove structure of a chamfer or dome haunch structure, and then binding the groove structure and the enclosing wall with reserved steel bars to realize that the steel bar framework of the extension part 112 and the capping part 12 is connected with the steel bar cage 3 of the enclosing wall 11 to form an integral structure;

s8, capping and pouring concrete: a supporting baffle is arranged on the outer side of the enclosing wall 11; pouring concrete slurry into the foundation pit 21 of the enclosure wall 11 through a plurality of guide pipes to realize the pouring of the top of the enclosure wall 11, the extension part 112 and the capping part 12;

s9, finishing construction: after the concrete is finally set for 3 hours, the excess concrete is manually excavated, and other parts and equipment are removed to finish the construction.

The utility model has simple process of wall type foundation, and rapid and safe construction; the grooving machine 8 is adopted for construction, the process and equipment are mature, special equipment does not need to be customized, and the popularization and construction are easy; the steel sheet piles are arranged during foundation pit construction, so that effective isolation and protection of the foundation pit can be realized, effective pouring of side walls in the foundation pit is guaranteed, the construction period is greatly shortened, and the construction quality and efficiency of the whole foundation are improved; meanwhile, the steel sheet pile is a recyclable component, so that the construction is more convenient and faster, and the energy is saved and the environment is protected.

The utility model discloses annular enclosure wall formula basis can directly face the combination as enclosing the fender structure forever, especially need not set up interim facilities such as steel cofferdam alone again when the aquatic construction, can shorten construction period by a wide margin, has better economic benefits.

The utility model discloses the whole support of the whole framework of steel reinforcement of wall formula basis in the work progress is transferred wholly and is installed and take one shot forming; and the concrete adopts the pressure-casting type or conduit type to pour and shape under water, overcome the disadvantage that the traditional foundation disperses and bears the force, has strengthened the stability of the structure, the wall type foundation reinforcing bar can be directly connected with upper pier, tower, cancel the bearing platform structure, reduce the dead load foundation structure system gravity acting on the soil body, have good mechanical properties and better economic efficiency.

In one embodiment, the capping and the top of the enclosing wall are of an integral structure; the construction method of the wall type foundation comprises the following steps:

s1, construction preparation: leveling the field and removing impurities; meanwhile, the position of a mud pit, a steel bar processing field, a construction access and the like are reasonably arranged, and materials and equipment required by construction are arranged;

s2, determining the basic position and the edge: determining the excavation position and size of a foundation pit 21 of the enclosure wall 11 by using a total station and a steel ruler, correspondingly inserting and driving steel sheet piles on the inner side of the foundation pit 21 to be excavated, then inserting and driving outer steel sheet piles, and sequentially connecting the steel sheet piles to realize the isolation and protection of the foundation pit excavation;

s3, excavating a foundation pit: the trenching machine 8 enters a field and excavates the position of a foundation pit 21 of the enclosure 11 in the steel sheet pile downwards to enable the foundation pit 21 to reach a preset elevation;

s4, implanting a fence reinforcement cage; the enclosure steel reinforcement cage is of an integral steel reinforcement framework structure in the shape of the cross section of the enclosure, the upper end and the lower end of the enclosure steel reinforcement cage are of a closing structure, and an air bag 4 is arranged in the hollow steel reinforcement cage body of each side edge of the enclosure steel reinforcement cage corresponding to the side wall 111;

the method comprises the following steps that (1) a crawler crane enters a field, a bottom reinforcement cage is hoisted and vertically placed into a foundation pit 21, an air bag 4 of the bottom reinforcement cage is in an expansion state at the moment and is placed into slurry of the foundation pit 21, the bottom reinforcement cage 3 is lifted upwards under the action of buoyancy, the upper end of the reinforcement cage is slightly higher than the top of the foundation pit 21, then the reinforcement cage and the air bag 4 are adjusted, and the bottom reinforcement cage is statically waited to stably float in the foundation pit 21;

then hoisting the other middle steel reinforcement cage to the position above the bottom steel reinforcement cage through the crawler crane, and fixedly connecting the connecting part on the middle steel reinforcement with the connecting part on the bottom steel reinforcement through the sleeve 6, so as to realize the upper and lower fixed connection of the two steel reinforcement cages; meanwhile, the air bags 4 in each side wall 111 of the middle reinforcing steel bar are respectively and fixedly connected with the air bags 4 corresponding to the bottom reinforcing steel bars up and down;

finally, adjusting the air bags 4 in the middle reinforcement cage and the bottom reinforcement to enable the upper end of the middle reinforcement to be slightly higher than the top of the foundation pit 21; similarly, positioning and mounting the top reinforcement cage to form an integral cage body structure; meanwhile, the position of the reinforcement cage is adjusted, the reinforcement cage and the foundation 2 on the inner side of the foundation pit 21 are circumferentially positioned through a positioning pin, and the air bag 4 in the reinforcement cage 3 is extracted;

s5, setting of the extending part and the top sealing steel bar framework: excavating the foundation 2 on the inner side of the top of the enclosing wall 11 in the circumferential direction to form a groove structure of a chamfer or dome haunch structure, and then binding steel bars on the groove structure and the top of the steel reinforcement cage 3 to realize that the steel reinforcement frameworks of the extension part 112 and the capping part 12 are connected with the steel reinforcement cage 3 of the enclosing wall 11 to form an integral structure;

s6, pouring concrete: a supporting baffle is arranged on the outer side of the reinforcement cage 3; respectively pouring concrete slurry into the foundation pit 21 of the enclosing wall 11 through a plurality of guide pipes, wherein the buried depth of the concrete guide pipes is always kept to be more than 2m during pouring, and after the concrete is poured, the guide pipes are slowly pulled out after the concrete surface is not changed after observation for about 30 minutes;

then pouring concrete into the supporting baffle to realize the integral pouring of the top of the enclosing wall 11, the extending part 112 and the capping 12;

s7, finishing construction: after the concrete is finally set for 3 hours, manually excavating excess concrete to finish the construction of the enclosing wall 11; simultaneously pulling out the outside steel sheet piles and the supporting baffle plates, and tamping the peripheral foundation 2; and other parts and equipment are removed to complete the construction.

This application has avoided because of pouring the seam of connecting the formation in grades through setting up integral wall body basis to avoid because of all kinds of problems that the side wall seam leads to, structural performance is more excellent, has improved whole foundation structure's bearing capacity greatly.

In another embodiment, when the partition wall 13 is disposed in the enclosing wall 11, a method for constructing a wall foundation is different from the above steps:

s2, determining the basic position and the edge: determining the excavation positions and sizes of the foundation pit 21 of the enclosing wall 11 and the partition wall 13 by using a total station and a steel ruler, inserting and driving steel sheet piles correspondingly on the inner side of the foundation pit 21 to be excavated, then inserting and driving outer steel sheet piles, and sequentially connecting the steel sheet piles to realize the isolation and protection of the foundation pit excavation;

s3, excavating a foundation pit: the trenching machine 8 enters the field, and excavates downwards the positions of the enclosure 11 and the partition 13 foundation pit 21 in the steel sheet pile to enable the foundation pit 21 and the partition 13 to reach a preset elevation;

s5, implanting a partition steel reinforcement cage: the enclosure steel reinforcement cage is hung in a foundation pit 21 of the partition wall 13 through a crawler, and the outer end of the enclosure steel reinforcement cage is connected with the enclosure steel reinforcement cage through steel wires respectively to form an integral structure;

s7, pouring concrete: a supporting baffle is arranged on the outer side of the reinforcement cage 3; respectively pouring concrete slurry into the enclosing wall 11 and the foundation pit 21 of the partition wall 13 through a plurality of guide pipes, wherein the buried depth of the concrete guide pipes is always kept to be more than 2m during pouring, and after the concrete is poured, the guide pipes are slowly pulled out after the concrete surface is observed for about 30 minutes;

then pouring concrete into the supporting baffle to realize the integral pouring of the top of the enclosing wall 11, the extending part 112 and the capping 12;

s8, finishing construction: after the concrete is finally set for 3 hours, manually excavating excess concrete to finish the construction of the enclosing wall 11; simultaneously pulling out the outside steel sheet piles and the supporting baffle plates, and tamping the peripheral foundation 2; and other parts and equipment are removed to complete the construction.

It should be noted that the detailed description of the present invention is not included in the prior art, or can be obtained directly from the market, and those skilled in the art can obtain the detailed description without creative efforts, and the detailed connection method has a very wide application in the field or daily life, and is not described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (9)

1. A wall base, its characterized in that: comprises an integral basic unit; the integral base unit comprises an enclosing wall and a capping; the enclosure wall comprises a plurality of side walls; a plurality of said side walls forming a unitary polygonal tubular foundation structure; the top sealing is positioned on the wall and connected with the side wall.

2. A wall footing according to claim 1 wherein: the single integral foundation unit forms an integral closed supporting foundation structure or a plurality of adjacent integral foundation units are sequentially connected to form the integral closed supporting foundation structure.

3. A wall footing according to claim 1 wherein: the steel reinforcement cage body in the enclosure is an integral cage body structure matched with the enclosure in shape.

4. A wall footing according to claim 1 wherein: a partition wall is also arranged; the partition wall is arranged at the upper part in the enclosing wall; the outer end of the partition wall is connected with the joint of the enclosing wall.

5. A wall footing according to claim 4 wherein: the enclosing wall is of a hexagonal structure, and the partition wall is provided with three side supporting walls; the outer ends of the side supporting walls are respectively connected with the joint of the enclosing walls at intervals.

6. A wall footing according to claim 1 wherein: the inner side of the top of the enclosing wall is also provided with an extending part; the extension portion abuts against the capping portion.

7. A wall footing according to claim 6 wherein: the extension is provided with a chamfer or a dome haunch structure along the circumferential direction of the top of the enclosing wall.

8. A wall footing according to claim 1 wherein: the top sealing and the top of the enclosing wall are of an integrated structure.

9. A wall footing according to claim 1 wherein: and grouting pipes are arranged at two sides and the lower end of the cavity of the enclosing wall.

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