CN220868704U - Integrated structure of equipment foundation pit and terrace - Google Patents

Abstract

The utility model relates to an integrated structure of a foundation pit and a terrace of equipment, and belongs to the field of civil engineering. The integrated structure is "concave" style of calligraphy, sets up on the plain soil of compaction, including parallel arrangement's terrace and foundation ditch bottom plate to and around the foundation ditch bottom plate setting and connect the foundation ditch lateral wall on terrace. The foundation pit side wall is provided with a roughening area exposing stress steel bars, the roughening area is fixedly connected with the terrace, the exposed part of the stress steel bars penetrates through the terrace, and the connecting part further comprises edge protection angle steel arranged at the joint of the terrace and the foundation pit side wall. Waterproof structures are respectively arranged among the terrace, the foundation pit bottom plate, the foundation pit side wall and plain soil so as to protect the terrace, the foundation pit bottom plate and the foundation pit side wall from being affected by moisture. According to the technical scheme, the terrace covers the top of the side wall of the foundation pit, and the terrace, the foundation pit bottom plate and the side wall of the foundation pit are combined into an integral fixed structure, so that ground construction joints are eliminated, and damage caused by uneven settlement of the foundation is avoided.

Description

Integrated structure of equipment foundation pit and terrace

Technical Field

The utility model belongs to the field of civil engineering and relates to an integrated structure of a foundation pit and a terrace of equipment.

Background

At present, the manufacturing industry in China is dedicated to intelligent upgrading of factories and processes, and intelligent equipment such as AGV intelligent trolleys and the like are widely applied to manufacturing workshops in the manufacturing industries such as automobiles, engineering machinery and the like, floor joints of workshops are required to be reduced as much as possible, and the floor construction method is required to be unified and beautiful as much as possible.

The traditional equipment foundation pit and the terrace are generally independently constructed, and after the construction of the equipment foundation (foundation pit) is completed, the terrace is constructed in a workshop. Because the construction time and the surface layer construction method of the equipment foundation are different, natural construction joints can be generated between the side wall of the equipment foundation pit and the floor of the workshop, and the construction joints seriously influence the reliable operation of intelligent equipment such as AGVs of the workshop. Meanwhile, due to the fact that uneven settlement and the like can occur on the terrace and the equipment foundation, construction joints are uneven, and the terrace is attractive. Along with the increasing demands of construction units on the functionality and the attractiveness of the floor of the production workshop, the independent construction schemes of the foundation pit and the floor of the traditional equipment cannot meet the demands.

The utility model provides a machine-readable storage medium for solving the functional problems and the attractive problems caused by the fact that the seam is formed on the floor in a workshop and the surface layer is different in construction method.

Disclosure of utility model

Therefore, the utility model aims to provide an integrated structure of a device foundation pit and a terrace, which is used for solving the problems that uneven settlement is easy to occur between the device foundation pit and the terrace and a construction joint is not attractive.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

An integrated structure of a device foundation pit and a terrace is concave and comprises a terrace parallel to a horizontal plane, a foundation pit bottom plate and a foundation pit side wall perpendicular to the horizontal plane, wherein one end of the foundation pit side wall is connected around the foundation pit bottom plate, and the other end of the foundation pit side wall is fixedly connected with the terrace; the foundation pit bottom plate is provided with a projection range on the terrace, and the terrace is provided with a hole in the projection range; the connection part of the side wall of the foundation pit and the terrace comprises concrete of the side wall of the foundation pit and stress steel bars, wherein a roughening area exposing the stress steel bars is arranged on the surface of the concrete, the roughening area is fixedly connected with the terrace, and the exposed part of the stress steel bars penetrates through the terrace; the connecting part further comprises edge protection angle steel arranged at the connecting part of the terrace and the side wall of the foundation pit.

Optionally, a metal aggregate wear-resistant surface layer with the thickness of 3mm is laid on one surface of the terrace far away from the foundation pit, and a first waterproof structure is arranged on the other surface of the terrace; the first waterproof structure comprises a PE film with the thickness of 0.4mm, which is clung to the terrace, and a 300mm thick graded broken stone base layer, which is arranged on one side of the PE film, which is far away from the terrace. The PE film and the graded broken stone base layer isolate the terrace structure from plain soil, and play roles of water resistance, permeability resistance and terrace cushion layer.

Optionally, one side of foundation ditch bottom plate on being close to the terrace is provided with the layer of strikethrough, and the another side is provided with the second waterproof construction. Wherein the thickness of the leveling layer is 20mm, and the concave side is leveled by adopting 1:2.5 cement polymer waterproof mortar. Optionally, the second waterproof structure includes protective layer, first waterproofing membrane, first basic unit treatment layer, additional first waterproofing membrane, first leveling layer and bed course from the top down in proper order along being perpendicular to the horizontal plane direction. The multiple waterproof structures cooperate with each other to resist moisture in the plain soil, so that the foundation pit bottom plate is prevented from being damaged by moisture.

Optionally, the trowelling layer is arranged on one surface, far away from the concave of the foundation pit, of the side wall of the foundation pit, and a third waterproof structure is arranged on the other surface; wherein the thickness of the leveling layer is 20mm, and the concave side is leveled by adopting 1:2.5 cement polymer waterproof mortar.

Optionally, the trowelling layer reaches foundation ditch lateral wall direction includes second screed, second basic unit treatment layer, second waterproofing membrane and polyphenyl board in proper order. The multiple waterproof structures cooperate with each other to resist moisture in the plain soil, so that the foundation pit bottom plate is prevented from being damaged by moisture.

The utility model has the beneficial effects that:

(1) The equipment foundation pit side wall and the terrace set form an integral structure, the top of the foundation pit side wall is connected with the bottom of the terrace, and construction joints on the terrace are eliminated, so that the terrace is smoother and more attractive.

(2) The stress steel bars reserved at the top of the side wall of the foundation pit are anchored into the terrace above, so that the side wall of the foundation pit is connected with the terrace more firmly, the overall synergy is better, and structural damage caused by uneven settlement of the foundation can be avoided.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in the following preferred detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic cross-sectional view of an integrated structure of a foundation pit and a terrace of an apparatus;

FIG. 2 is an enlarged schematic view of a side wall of an equipment foundation pit;

fig. 3 is an enlarged schematic view of the equipment foundation pit floor.

Reference numerals:

The waterproof construction comprises a terrace (1), a foundation pit bottom plate (2), a foundation pit side wall (3), a first waterproof structure (4), a surface layer (41), a reinforcing steel mesh (42), a PE film (43), a graded broken stone base layer (44), a side protection angle steel (45), a third waterproof structure (5), a polyphenyl board (51), a second waterproof roll (52), a second base layer treatment layer (53), a second leveling layer (54), a roughening area (55), a second waterproof structure (6), a protective layer (61), a first waterproof roll (62), a first base layer treatment layer (63), a first leveling layer (64), a cushion layer (65), 7 plain soil, a leveling layer (8) and a stress reinforcing steel bar (9).

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present utility model by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the utility model; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present utility model, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-3, an integrated structure of a foundation pit and a terrace of an apparatus is disclosed, which comprises a terrace 1 parallel to a horizontal plane, a foundation pit bottom plate 2 and a foundation pit side wall 3 perpendicular to the horizontal plane, wherein the foundation pit bottom plate 2 is arranged below the terrace 1, the terrace 1 is not arranged in a projection range of the foundation pit bottom plate 2 on the terrace 1, namely, the terrace 1 is provided with a hole in the projection range, the foundation pit side wall 3 is arranged between the terrace 1 and the foundation pit bottom plate 2 around one circle of the foundation pit bottom plate 2, the top of the foundation pit side wall 3 is roughened, and a roughening area 55 is in direct contact with the lower edge of the terrace 1; the whole structure is concave.

A20 mm thick leveling layer 8 is arranged on one surface, close to the concave, of the side wall 3 of the foundation pit and the bottom plate 2 of the foundation pit, and one side of the concave is leveled by adopting 1:2.5 cement polymer waterproof mortar. The floor 1 is paved with a wear-resistant surface layer 41 with the thickness of 3mm, the wear-resistant surface layer is made of metal aggregate, the volume weight is 5kg/m, and the concrete sealing curing agent is constructed after the wear-resistant material reaches the curing period (or after 15 days of curing) and is ground and polished. The wear-resistant surface layer 41 is close to the side of the troweling layer 8 and is also provided with a guard angle steel 45 with the width of 50mm, so that the corners of the wear-resistant surface layer 41 are protected from being damaged due to the conditions of external force collision and the like.

The terrace 1, the foundation pit bottom plate 2 and the foundation pit side wall 3 are all of reinforced concrete structures, the thickness of the terrace 1 is 250mm, the elevation of the plate surface is +/-0.000 m, the strength of concrete is C30, and the C8@150X150 reinforcing steel bar meshes 42 are arranged inside; the concrete strength of the foundation pit bottom plate 2 and the foundation pit side wall 3 is C30, the impervious grade is P8, and the thicknesses of the foundation pit bottom plate 2 and the foundation pit side wall 3 and the number, specification, spacing and configuration form of the steel bars arranged in the concrete are all determined according to the calculation of the actual stress condition on site. The stress steel bars 9 in the side wall 3 of the foundation pit are inserted into the terrace 1.

The integrated structure formed by the terrace 1, the foundation pit bottom plate 2 and the foundation pit side wall 3 is arranged on the rammed plain soil 7, and the compaction coefficient of the plain soil 7 is more than or equal to 0.94. One side that integrated structure is close to plain soil 7 all is provided with waterproof construction, and terrace 1 is provided with first waterproof construction 4 near one side of plain soil 7, and one side that foundation ditch bottom plate 2 is close to plain soil 7 is provided with second waterproof construction 6, and one side that foundation ditch lateral wall 3 is close to plain soil 7 is provided with third waterproof construction 5.

The first waterproof structure 4 comprises a PE film 43 and a graded macadam base 44. The PE film 43 is closely attached to the lower edge of the terrace 1, and the graded broken stone base layer 44 is arranged on the plain soil 7 closely attached to the lower edge of the PE film 43. The PE film 43 is fully arranged at the lower edge of the terrace 1, and the thickness of the PE film is 0.4mm; the graded broken stone base layer 44 is 300mm thick, and the compactness is more than or equal to 0.95. The PE film 43 and the graded broken stone base layer 44 isolate the terrace 1 structure from plain soil 7, and play a role in waterproof and impervious functions.

The second waterproof structure 6 comprises a protective layer 61, a first waterproof coiled material 62, a first base treatment layer 63, an additional first waterproof coiled material 62, a first leveling layer 64 and a cushion layer 65 which are sequentially arranged from the foundation pit bottom plate 2 to the plain soil 7. The protective layer 61 is arranged close to the lower edge of the foundation pit bottom plate 2 and is formed by casting C20 fine stone concrete with the thickness of 50 mm; the first waterproof coiled material 62 is 3mm thick, and a self-adhesive polymer modified asphalt waterproof coiled material (namely a polyester tire waterproof coiled material) is adopted to form a layer of reliable waterproof barrier to protect the side wall 3 of the foundation pit from being affected by moisture; the first base layer treatment layer 63 is a layer of base layer treatment agent for enhancing the bonding force between the waterproof material and the foundation pit; then a layer of waterproof coiled material is added on the first base treatment layer 63, the thickness is 3mm, and the self-adhesive polymer modified asphalt waterproof coiled material (namely, the polyester tire waterproof coiled material) is adopted, so that the waterproof and seepage-proof effects are mainly enhanced; the second screed 54 is 20mm thick, using 1:2.5 cement mortar; the cushion layer 65 is 150mm thick and is formed by casting C20 concrete and is used for water isolation, drainage and freeze prevention so as to improve the working condition between a foundation (foundation pit bottom plate 2) and a foundation (plain soil 7).

The third waterproof structure 5 comprises a second leveling layer 54, a second base treatment layer 53, a second waterproof coiled material 52 and a polystyrene board 51 which are sequentially wrapped and arranged on the side wall 3 of the foundation pit from the side wall 3 of the foundation pit to the plain soil 7. The second screed 54 is a 20mm thick 1:2.5 cement mortar; the second base treatment layer 53 is a layer of base treatment agent brushed to enhance the adhesion between the waterproof material and the side wall 3 of the foundation pit; the second waterproof roll 52 adopts a self-adhesive polymer modified asphalt waterproof roll (namely a polyester tire waterproof roll) with the thickness of 3mm to form a reliable waterproof barrier to protect the side wall 3 of the foundation pit from being affected by moisture; the polystyrene board 51 is an extruded polystyrene board 51 with the thickness of 30mm, and is adhered to the outer side of the waterproof coiled material, the extruded polystyrene board 51 has excellent water resistance and moisture resistance, the water absorption rate is extremely low, and moisture in plain soil 7 can be prevented from entering the side wall 3 of the foundation pit.

The first waterproof roll 62 and the second waterproof roll 52 overlap at least 250mm at the junction part of the two to avoid infiltration of moisture through the junction part and improve the waterproof effect.

The construction method of the equipment foundation pit and terrace integrated structure comprises the following steps:

S1, preparing work;

S11, determining positive and negative zero elevation + -0.000 m, namely the elevation of the 1-plane of the terrace;

S12, excavating a foundation pit;

And S13, tamping the plain soil 7 in the foundation pit until the compaction coefficient is more than or equal to 0.94.

S2, constructing a second waterproof structure 6 outside the foundation pit bottom plate 2;

s21, pouring a concrete cushion layer 65, wherein C20 concrete is adopted, and the pouring thickness is 150mm;

S22, arranging a first leveling layer 64 on a concrete cushion layer 65, and adopting cement mortar with the ratio of 1:2.5, wherein the construction thickness is 20mm;

S23, paving a first waterproof roll 62 on the first leveling layer 64, wherein the first waterproof roll 62 is a polymer modified asphalt waterproof roll (namely a polyester tire waterproof roll) with the thickness of 3 mm;

S24, brushing a layer of base layer treatment agent on the first waterproof coiled material 62 to form a first base layer treatment layer 63;

S25, paving a polymer modified asphalt first waterproof roll 62 (namely a polyester tire waterproof roll) with the thickness of 3mm on the first base treatment layer 63 again;

S26, casting a C20 fine stone concrete protective layer 61 with the thickness of 50mm on the first waterproof coiled material 62.

S3, constructing a foundation pit bottom plate 2 and a foundation pit side wall 3;

S31 binding the steel bars of the foundation pit bottom plate 2 and the foundation pit side wall 3, wherein the number, the specification, the spacing and the configuration mode of the steel bars are determined according to the calculation of the actual stress condition on site, the stress steel bars 9 of the foundation pit side wall 3 extend upwards to the terrace range, and the elevation of the top of the stress steel bars is not lower than +/-0.000 m;

S32, supporting a mould on the foundation pit bottom plate 2 and the foundation pit side wall 3, wherein the elevation of the top of the mould plate of the foundation pit side wall 3 is-0.250 m;

S33, pouring concrete, namely pouring C30 concrete, wherein the concrete of the side wall 3 of the foundation pit is poured to the elevation of-0.250 m, the top of the side wall of the foundation pit is left to leave a terrace thickness range, and the terrace thickness range is not poured, and the concrete and the terrace concrete in the subsequent steps are poured together;

s34, curing concrete;

S35, removing the formwork, and removing the formwork after the concrete curing is completed.

S4, constructing a second waterproof structure 6 outside the side wall 3 of the foundation pit;

S41, leveling the side wall 3 of the foundation pit, constructing a second leveling layer 54 on the side wall 3 of the foundation pit with the template removed, and constructing the foundation pit with the thickness of 20mm by adopting cement mortar of 1:2.5;

S42, brushing a layer of base layer treatment agent on the constructed leveling layer to form a second base layer treatment layer 53;

S43, paving a self-adhesive polymer modified asphalt second waterproof roll 52 (namely a polyester tire waterproof roll) with the thickness of 3mm on the second base treatment layer 53;

s44, sticking an extruded polystyrene board 51 with the thickness of 30mm on the second waterproof coiled material 52;

S45, ramming plain soil 7 on one side of the side wall 3 of the foundation pit far from the interior of the foundation pit until the compaction coefficient is more than or equal to 0.94;

S5, constructing a terrace 1;

S51, constructing a graded broken stone base layer 44 with the thickness of 300mm on the compacted plain soil 7, wherein the compactness is more than or equal to 0.95;

s52, paving a PE film 43 with the thickness of 0.4mm on the graded broken stone base layer 44 in a full paving mode;

S53, surface roughening is carried out on the top (the elevation-0.250 m position) of the side wall 3 of the foundation pit which is completed by construction, a roughening area 55 is formed, stress steel bars 9 of the side wall 3 of the foundation pit are exposed, and the reserved stress steel bars 9 which are to be stretched into the terrace 1 in the side wall 3 of the foundation pit are not damaged; s54, erecting a die on the terrace 1, wherein the elevation of the surface structure of the terrace 1 is controlled to be +/-0.000 m;

s55, binding a C8@150X150 reinforcing steel bar net sheet 42 in a double-layer bidirectional configuration mode, and paying attention to inserting reinforcing steel bars at the joint of the terrace 1 and the foundation pit side wall 3 into reinforcing steel bars extending out of the foundation side wall; and a corner of the stress steel bar 9 reserved on the side wall 3 of the foundation pit, which is close to the inner wall of the foundation pit, is welded with a guard angle steel 45 in a spot mode;

S56, pouring concrete, namely pouring C30 concrete into a concrete structure terrace 1 with the thickness of 250 mm;

S57, curing concrete;

s58, after concrete curing is completed, constructing a metal aggregate wear-resistant surface layer 41 with the thickness of 3mm on the concrete of the terrace 1, wherein the volume weight of the metal aggregate wear-resistant surface layer is 5kg/m;

S59, after the wear-resistant surface layer 41 reaches the curing period (or 15 days after curing), the concrete sealing curing agent is constructed after grinding and polishing.

S6, constructing a leveling layer 8 on the inner wall of the foundation pit, and leveling by adopting cement polymer waterproof mortar with the thickness of 1:2.5 to paint 20mm.

According to the utility model, the equipment foundation pit side wall 3 and the terrace 1 are assembled to form an integral structure, and the top of the foundation pit side wall 3 is connected with the bottom of the terrace 1, so that a construction joint on the terrace 1 is eliminated, and the terrace 1 is smoother and more attractive. And the stress steel bars 9 reserved at the top of the side wall 3 of the foundation pit are anchored into the terrace 1 above, so that the side wall 3 of the foundation pit is connected with the terrace 1 more firmly, the overall synergy is better, and structural damage caused by uneven settlement of the foundation can be avoided.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.

Claims (9)

1. An integrated structure of a foundation pit and a terrace of equipment is concave and comprises a terrace (1) parallel to a horizontal plane, a foundation pit bottom plate (2) and a foundation pit side wall (3) perpendicular to the horizontal plane, wherein one end of the foundation pit side wall (3) is connected around the foundation pit bottom plate (2), and the other end of the foundation pit side wall is fixedly connected with the terrace (1); the foundation pit bottom plate (2) is provided with a projection range on the terrace (1), and the terrace (1) is provided with a hole in the projection range; the method is characterized in that: the connection part of the foundation pit side wall (3) and the terrace (1) comprises concrete of the foundation pit side wall (3) and stress steel bars (9), a roughening area (55) exposing the stress steel bars (9) is arranged on the surface of the concrete, the roughening area (55) is fixedly connected with the terrace (1), and the exposed part of the stress steel bars (9) penetrates through the terrace (1); the connecting part further comprises a side protection angle steel (45) arranged at the connecting part of the terrace (1) and the side wall of the foundation pit.

2. The integrated structure of equipment foundation pit and terrace according to claim 1, wherein: one surface of the terrace (1) far away from the foundation pit is paved with a surface layer (41), and the other surface of the terrace is provided with a first waterproof structure (4).

3. The integrated structure of equipment foundation pit and terrace according to claim 2, wherein: the first waterproof structure (4) comprises a PE film (43) which is clung to the terrace (1), and a graded broken stone base layer (44) which is arranged on one side of the PE film (43) away from the terrace (1).

4. The integrated structure of equipment foundation pit and terrace according to claim 2, wherein: the surface layer (41) is a metal aggregate wear-resistant surface layer.

5. The integrated structure of equipment foundation pit and terrace according to claim 1, wherein: one surface of the foundation pit bottom plate (2) close to the terrace (1) is provided with a leveling layer (8), and the other surface is provided with a second waterproof structure (6).

6. The integrated structure of equipment foundation pit and terrace according to claim 5, wherein: the second waterproof structure (6) comprises a protective layer (61), a first waterproof roll (62), a first base layer treatment layer (63), an additional first waterproof roll (62), a first leveling layer (64) and a cushion layer (65) from top to bottom in sequence along the direction perpendicular to the horizontal plane.

7. The integrated structure of equipment foundation pit and terrace according to claim 5, wherein: the trowelling layer (8) adopts cement polymer waterproof mortar to trowelle.

8. The integrated structure of equipment foundation pit and terrace according to claim 1, wherein: one surface, far away from the pit indent, of the pit side wall (3) is provided with the leveling layer (8), and the other surface is provided with a third waterproof structure (5).

9. The integrated structure of equipment foundation pit and terrace (1) according to claim 8, characterized in that: the third waterproof structure (5) sequentially comprises a second leveling layer (54), a second base layer treatment layer (53), a second waterproof coiled material (52) and a polystyrene board (51) along the direction from the leveling layer (8) to the side wall (3) of the foundation pit.