CN113374071A - Construction method of basement in soft soil area - Google Patents
Construction method of basement in soft soil area Download PDFInfo
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- CN113374071A CN113374071A CN202110859176.2A CN202110859176A CN113374071A CN 113374071 A CN113374071 A CN 113374071A CN 202110859176 A CN202110859176 A CN 202110859176A CN 113374071 A CN113374071 A CN 113374071A
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- 239000002689 soil Substances 0.000 title claims abstract description 40
- 238000010276 construction Methods 0.000 title claims abstract description 34
- 239000004567 concrete Substances 0.000 claims abstract description 107
- 239000011178 precast concrete Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 58
- 239000010959 steel Substances 0.000 claims description 58
- 238000009415 formwork Methods 0.000 claims description 19
- 241000357293 Leptobrama muelleri Species 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
- E04B1/0015—Cellars constructed from prefabricated units
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a basement construction method in a soft soil area, which comprises the steps of excavating basement soil at the edge part of a prefabricated concrete bottom plate, erecting a concrete side plate sliding template and pouring concrete; and synchronously excavating basement soil at the middle precast concrete bottom plate part during the concrete pouring of the concrete side plates, and pouring expanded concrete after paving rubber water stops between the edge precast concrete bottom plate and the middle precast concrete bottom plate and between the adjacent middle precast concrete bottom plates. The invention adopts the optimization scheme of the partition excavation, and the concrete bottom plate is synchronously constructed during the construction of the concrete side plate, thereby accelerating the construction progress of the basement, obviously reducing the exposed time of earthwork and reducing the risk of creep deformation of soft soil. The prefabricated floor slab and the cast-in-place concrete side plate are combined to quickly form a structural rigidity system, so that the safety of the basement in the construction process is effectively improved; and sealing measures are adopted among the joints of the precast concrete bottom plates to improve the seepage-proofing capability.
Description
Technical Field
The invention relates to the technical field of basement construction, in particular to a basement construction method in a soft soil area.
Background
The basement construction in the soft soil area has great potential safety hazard, so the basement construction stage is classified as the range of dangerous large projects. The reason for this is that the basement construction time in soft soil areas is long, creep deformation easily occurs during the exposure period of soft soil, and danger can occur when the creep deformation is too large. Therefore, the construction time of the basement stage is accelerated, and the method has great significance for guaranteeing safety. In addition, basement leakage is a problem of important treatment in the basement construction stage. Therefore, how to provide a method for building basements in soft soil areas is a problem which needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
Therefore, the invention aims to provide the basement construction method in the soft soil area, so that the construction progress is accelerated, the anti-seepage treatment is carried out in the construction process, the construction safety of the basement is improved, and the construction quality of the basement is ensured.
The invention provides a method for building a basement in a soft soil area, which comprises the following steps: firstly, excavating basement soil at the prefabricated concrete bottom plate part at the edge part, then erecting a concrete side plate sliding template and pouring concrete; and synchronously excavating basement soil at the middle precast concrete bottom plate part during the concrete pouring of the concrete side plates, and pouring expanded concrete after paving rubber water stops between the edge precast concrete bottom plate and the middle precast concrete bottom plate and between the adjacent middle precast concrete bottom plates.
According to the technical scheme, compared with the prior art, the basement construction method in the soft soil area is disclosed, the traditional cast-in-place concrete bottom plate is improved by adopting the precast concrete bottom plate, and the precast concrete bottom plate is laid when the basement bottom soil is dug in place, so that the construction time is greatly reduced. The optimization scheme of the partition excavation is adopted, the concrete bottom plate is constructed in a synchronous flow mode during the construction of the concrete side plate, the construction progress of the basement is remarkably accelerated, the exposure time of earthwork is obviously shortened, and the risk of creep deformation of soft soil is reduced. In addition, a structural rigidity system is quickly formed by combining the prefabricated floor slab with the cast-in-place concrete side plate, so that the safety of the basement in the construction process is effectively improved; meanwhile, sealing measures are adopted between the joints of the precast concrete bottom plates, so that the seepage-proofing capability is improved.
Furthermore, an embedded groove used for embedding the concrete side plate is formed in one end of the edge precast concrete bottom plate, and a first step table is formed in the other end of the edge precast concrete bottom plate. The first step is a step-shaped shoulder with a plurality of steps, and can be two or three.
Furthermore, second terraces are arranged at two ends of the middle precast concrete bottom plate, a side groove used for placing the rubber water stop and pouring the expansive concrete after is formed by the second terraces corresponding to one ends of the second terraces and the first terraces, and a middle groove used for placing the rubber water stop and pouring the expansive concrete after is formed by the two adjacent second terraces. The second step is also provided with a plurality of step-shaped shoulders, two or three shoulders, and the second step is butted with the first step to form a groove.
Furthermore, a cross-over groove for cross-over of the prefabricated floor slab is formed in the concrete side plate, a bracket is arranged at the bottom of the cross-over groove, steel connecting pieces are arranged on the bracket and arranged along the length direction of the concrete side plate, the distance between every two adjacent steel connecting pieces is 0.8-1m, and the steel connecting pieces are bonded with steel embedded pieces on the lower portion of the prefabricated floor slab through special metal glue. Thereby facilitating the positioning of the precast floor slab.
Furthermore, the concrete side plate is poured in a sectional mode, and the sliding template is erected in a sectional mode; therefore, the segregation phenomenon during concrete pouring is avoided.
Furthermore, the outer wall of the sliding template is connected by adopting an anti-destabilization device in the concrete side plate pouring process. The sliding formwork is a steel formwork, the rigidity of the steel formwork is poor, instability can occur easily in the concrete pouring process, and in order to prevent unstable phenomena in the concrete pouring process, the sliding steel formwork instability prevention device is adopted.
Further, the sliding formwork outside is provided with a plurality of parallel arrangement's steel backing stupefied, adopts the scissors type structure to carry out the drawknot between the steel backing stupefied through wire rope, sets up the turn buckle that is used for adjusting the elasticity on the wire rope. By adopting the anti-instability device, flexible anti-instability is realized.
Further, the sliding formwork outside is provided with a plurality of parallel arrangement's steel backing stupefied, adopts the scissors type structure to carry out the drawknot through the steel pipe between the steel backing stupefied, and scissors type structure crosspoint adopts steel fastener to connect, adopts bolted connection between steel pipe and the steel backing stupefied. By adopting the anti-instability device, rigid anti-instability is realized.
Furthermore, a steel plate water stop belt is arranged in the middle of the section between the segmental concrete side plate pouring units, so that the seepage-proofing capability is further improved.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of a basement floor and basement side panels after first placement;
FIG. 2 is a schematic view of the basement floor and the basement side panels after the second pour;
FIG. 3 is a schematic diagram of a precast concrete floor panel joint structure;
FIG. 4 is a schematic view of a flexible anti-buckling device;
FIG. 5 is a schematic view of a rigid anti-buckling apparatus;
FIG. 6 is a schematic of a steel water stop;
FIG. 7 the accompanying drawings show a schematic view of a template cartridge;
in the figure: 1-edge precast concrete bottom plate, 2-concrete side plate, Z-middle precast concrete bottom plate, 3-bracket, 4-steel connecting piece, 5-cross connecting groove, 6-rubber water stop, 7-expansive concrete, 8-template clamping piece, 9-steel back edge, 10-steel wire rope, 11-turn buckle, 12-bolt, 13-steel fastener, 14-steel plate water stop and 15-pre-buried hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to accelerate the construction progress and perform anti-seepage treatment in the construction process, improve the safety of basement construction and ensure the construction quality of the basement, the embodiment of the invention discloses a basement construction method in a soft soil area, which comprises the following steps: firstly, excavating basement soil at the position of a prefabricated concrete bottom plate 1 at the edge part, then erecting a sliding template of a concrete side plate 2 and pouring concrete; and synchronously excavating basement soil at the Z position of the middle precast concrete bottom plate during the concrete pouring of the concrete side plates 2, and pouring expansive concrete 7 after paving rubber water stops 6 between the edge precast concrete bottom plate 1 and the middle precast concrete bottom plate Z and between the adjacent middle precast concrete bottom plates Z. The invention improves the traditional cast-in-place concrete bottom plate by adopting the precast concrete bottom plate, and the precast concrete bottom plate is laid when the basement bottom soil is dug in place, so that the construction time is greatly reduced. The optimization scheme of the partition excavation is adopted, the concrete bottom plate is constructed in a synchronous flow mode when the concrete side plates 2 are constructed, the construction progress of the basement is accelerated remarkably, the exposure time of earthwork is shortened remarkably, and the risk of creep deformation of soft soil is reduced. In addition, through prefabricated floor and cast-in-place concrete curb plate 2 combination, form structural rigidity system fast, effectively promoted the security in the basement work progress. Meanwhile, sealing measures are adopted between the joints of the precast concrete bottom plates, so that the seepage-proofing capability is improved.
The prefabricated bottom plate adopted by the invention comprises two types of an edge prefabricated concrete bottom plate 1 and a middle prefabricated concrete bottom plate Z, wherein the thickness of the edge prefabricated concrete bottom plate 1 is 500-600mm, the width of the edge prefabricated concrete bottom plate is 3-5m, the thickness of the middle prefabricated concrete bottom plate Z is 500-600mm, and the width of the middle prefabricated concrete bottom plate Z is 3-4 m.
Advantageously, the edge precast concrete floor 1 is provided at one end thereof with a pre-buried groove for embedding the concrete side panel 2, and at the other end thereof with a first step. The pre-buried groove is inwards concave, the width is 300mm, the depth is 30-40mm, and the concrete side plate 2 is embedded in the pre-buried groove. The first step is a step-shaped shoulder with a plurality of steps, and can be two or three. Preferably, limit portion precast concrete bottom plate 1 leans on to middle part precast concrete bottom plate Z direction tip to set up two-stage stairstepping, and the height of bottom step is 200-.
Middle part precast concrete bottom plate Z both ends all have the second step, and the second step that its one end corresponds forms the limit portion recess that is used for placing rubber waterstop 6 and post-cast expansive concrete 7 with first step, and two adjacent second steps are formed with the middle part recess that is used for placing rubber waterstop 6 and post-cast expansive concrete 7. Two template clamping pieces 8 are arranged on two sides of the concrete side plate 2 so that the templates can be inserted and fixed conveniently. Referring to fig. 7, the formwork clamping pieces 8 are arranged along the length direction of the concrete side plate 2, the distance between every two adjacent formwork clamping pieces 8 is 1.5-1.8m, the formwork clamping pieces 8 are of open concave structures, the depth of each formwork clamping piece 8 is 70-80mm, and the thickness of the side wall and the bottom plate of each formwork clamping piece 8 is 15-18 mm.
The second step is also provided with a plurality of step-shaped shoulders, two or three shoulders, and the second step is butted with the first step to form a groove. Preferably, the two side ends of the middle precast concrete bottom plate Z are both arranged into two-stage ladder shape, the height of the bottom layer ladder is 200-300 mm, the width of the bottom layer ladder is 250-400 mm, and the height of the upper layer ladder is 350-400 mm. The middle precast concrete bottom plate Z and the edge precast concrete bottom plate 1 are spliced into a concave slotted hole, a rubber water stop belt 6 is laid on the interface part, the width of the rubber water stop belt 6 is 250-300mm, an expansive concrete 7 is arranged on the rubber water stop belt 6, the strength of the expansive concrete 7 is C30, and the impermeability grade is P6.
Advantageously, referring to fig. 2, the concrete side plate 2 is provided with a cross-connecting groove 5 for cross-connecting the precast floor slab, the bottom of the cross-connecting groove 5 is provided with a bracket 3, a steel connecting piece 4 is arranged on the bracket 3, the steel connecting piece 4 is arranged along the length direction of the concrete side plate 2, the distance between adjacent steel connecting pieces 4 is 0.8-1m, and the steel connecting piece 4 is bonded with a steel embedded part at the lower part of the precast floor slab through special metal glue. The height of the cross connecting groove 5 is 140-160mm, the depth is 100-120mm, the prefabricated floor slab is embedded in the groove, the height of the prefabricated floor slab is 120-140mm, and the width is 0.5-0.7 m. The picking width of the bracket 3 is 180-200 mm.
In the embodiment of the invention, the concrete side plates 2 are cast in sections, and the sliding formworks are erected in sections. The height of each section of concrete pouring is 3-3.5m, the concrete side die adopts a sliding steel die, and pre-buried holes 15 are formed in the positions of the concrete side wall intersection groove 5 and the bracket 3. The height of the sliding steel die supporting unit is 3-3.5 m.
The sliding formwork is a steel mould, the rigidity of the steel mould is poor, instability can be easily caused in the concrete pouring process, and in order to prevent unstable phenomena in the concrete pouring process, the outer wall of the sliding formwork is connected with an anti-instability device in the concrete side plate 2 pouring process.
Referring to the attached figure 4, the flexible anti-destabilization device is provided, a plurality of steel back ridges 9 which are arranged in parallel are arranged on the outer side of the sliding template, the steel back ridges 9 are tied through steel wire ropes 10 in a scissor type structure, and the steel wire ropes 10 are provided with basket bolts 11 for adjusting the tightness. The steel back edges 9 are made of square steel with the length and width of 60-80mm, and the distance between the square steel and the concrete side plates 2 is 3-4 m.
Referring to the attached figure 5, the invention provides a rigid anti-destabilization device, wherein a plurality of steel back ridges 9 which are arranged in parallel are arranged on the outer side of a sliding template, the steel back ridges 9 are tied through steel pipes in a scissor type structure, the cross points of the scissor type structure are connected through steel fasteners 13, and the steel pipes are connected with the steel back ridges 9 through bolts 12. The steel back edges 9 are made of square steel with the length and width of 60-80mm, and the distance between the square steel and the concrete side plates 2 is 3-4 m.
Referring to the attached drawings 2 and 6, the bracket 3 is used for secondary formwork erection pouring after the concrete side plates 2 are poured, and steel plate water stops 14 are arranged between the segmental concrete side plate 2 pouring units in the middle of the cross section.
The concrete construction steps of the invention comprise:
(1) firstly, excavating basement soil at the position of the precast concrete slab at the edge part, and paving a sandstone cushion layer for compaction when the basement soil is excavated to a desired elevation;
(2) hoisting the edge precast concrete plates to the upper surface of the sandstone cushion layer by using a tower crane;
(3) binding the reinforcing steel bars of the concrete side plates 2 in the embedded grooves, arranging a sliding template, and inserting a steel panel of the sliding template into the template clamping piece 8;
(4) arranging a steel back ridge 9 outside the steel panel of the sliding template, and then arranging an anti-instability device;
(5) pouring concrete of the concrete side plate 2;
(6) repeating the steps (3) to (5), wherein the concrete pouring unit has no process of inserting the steel panel of the sliding template into the template clamping piece 8;
(7) after the concrete side plate 2 is completely poured for the first time, opening the pre-embedded holes 15 of the concrete side plate 2, welding the reinforcing steel bars of the bracket 3 with the pre-embedded reinforcing steel bars in the pre-embedded holes 15, and erecting a template at the position of the bracket 3;
(8) pouring concrete of the bracket 3, filling the concrete at the position of the pre-buried hole 15 to form second pouring of the basement side plate, and forming a precast floor slab cross joint groove 5 in the concrete side wall;
(9) synchronously excavating basement soil at the precast concrete slab part during the concrete pouring of the concrete side plate 2, and paving a sandstone cushion layer for compaction when the basement soil is excavated to a desired elevation;
(10) hoisting the middle precast concrete to the upper surface of the sandstone cushion layer by using a tower crane;
(11) paving rubber water stops 6 in edge grooves formed between the edge precast concrete bottom plates 1 and the middle precast concrete bottom plates Z and middle grooves of abutted seams of the adjacent middle precast concrete bottom plates Z;
(12) and concrete 7 is expanded in the edge groove and the middle groove hole.
(13) The prefabricated floor slab is inserted into the concrete side plate 2 cross connecting groove 5, and the steel connecting piece 4 on the bracket 3 is bonded with the lower steel embedded part of the prefabricated floor slab through special metal glue.
Therefore, the concrete bottom plate construction technical method comprises the following steps: the basement earthwork is excavated in a subarea mode, the basement soil at the prefabricated concrete bottom plate part at the edge part is excavated firstly, the concrete side plate sliding template is erected and the concrete is poured, the basement soil at the prefabricated concrete part in the middle part is synchronously excavated during the concrete pouring of the concrete side plate, and the expansion concrete is poured after the rubber waterstop is laid between the adjacent prefabricated concrete in the middle part. The construction time of the concrete side plate is accelerated by sliding the steel die, and the anti-instability device is provided aiming at the instability phenomenon caused by the poor integral rigidity of the steel die, so that the safety risk is reduced.
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 described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, 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 within the scope of the present invention.
Claims (9)
1. The method for building the basement in the soft soil area is characterized by comprising the following steps of:
firstly, excavating basement soil at the prefabricated concrete bottom plate part at the edge part, then erecting a concrete side plate sliding template and pouring concrete; and synchronously excavating basement soil at the middle precast concrete bottom plate part during the concrete pouring of the concrete side plates, and pouring expanded concrete after paving rubber water stops between the edge precast concrete bottom plate and the middle precast concrete bottom plate and between the adjacent middle precast concrete bottom plates.
2. A soft soil area basement construction method according to claim 1, wherein the edge precast concrete floor slab is provided at one end thereof with an embedded groove for embedding the concrete side panel and at the other end thereof with a first step.
3. The method for constructing the basement in the soft soil area according to claim 2, wherein the middle precast concrete bottom plate is provided with second step platforms at two ends, the second step platform corresponding to one end of the middle precast concrete bottom plate and the first step platform form edge grooves for placing the rubber water stop and the post-pouring expansive concrete, and two adjacent second step platforms form middle grooves for placing the rubber water stop and the post-pouring expansive concrete.
4. The method for constructing the basement in the soft soil area according to claim 1, wherein the concrete side plates are provided with cross-connecting grooves for cross-connecting the precast floor slabs, the bottoms of the cross-connecting grooves are provided with brackets, steel connecting pieces are arranged on the brackets and are arranged along the length direction of the concrete side plates, the distance between every two adjacent steel connecting pieces is 0.8-1m, and the steel connecting pieces are bonded with the steel embedded pieces on the lower portions of the precast floor slabs through special metal glue.
5. The method of constructing a basement in a soft soil area according to claim 1, wherein the concrete side panels are cast in sections, and the sliding formwork is erected in sections.
6. The method of constructing a basement in a soft soil area according to claim 5, wherein the outer walls of the sliding formwork are connected by an anti-destabilizing device during the pouring of the concrete side plates.
7. The soft soil area basement building method according to claim 6, wherein a plurality of steel back ridges arranged in parallel are arranged on the outer side of the sliding formwork, the steel back ridges are tied through steel wire ropes in a scissor type structure, and the steel wire ropes are provided with turn bolts for adjusting tightness.
8. The method for constructing the basement in the soft soil area according to claim 6, wherein a plurality of steel back ridges arranged in parallel are arranged on the outer side of the sliding formwork, the steel back ridges are tied through steel pipes in a scissor type structure, cross points of the scissor type structure are connected through steel fasteners, and the steel pipes are connected with the steel back ridges through bolts.
9. The method for constructing a basement in a soft soil area according to claim 5, wherein a steel plate water stop is arranged between the segmental concrete side plate pouring units at the middle part of the section.
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2021
- 2021-07-28 CN CN202110859176.2A patent/CN113374071A/en active Pending
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| 陈文建和汪静然: "《建筑施工技术》", 30 June 2018, 北京理工大学出版社 * |
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