CN115506419A - Seamless leakage-proof construction method for basement exterior wall - Google Patents
Seamless leakage-proof construction method for basement exterior wall Download PDFInfo
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- CN115506419A CN115506419A CN202211086276.7A CN202211086276A CN115506419A CN 115506419 A CN115506419 A CN 115506419A CN 202211086276 A CN202211086276 A CN 202211086276A CN 115506419 A CN115506419 A CN 115506419A
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 239000002689 soil Substances 0.000 claims abstract description 45
- 239000004567 concrete Substances 0.000 claims abstract description 10
- 230000008093 supporting effect Effects 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000011378 shotcrete Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005498 polishing Methods 0.000 description 13
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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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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Abstract
The invention relates to a seamless leakage-proof construction method for a basement exterior wall, which comprises the following steps: s1, sequentially installing a plurality of rows of inclined throwing supports for supporting the pit wall of a foundation pit from top to bottom, and removing back pressure soil corresponding to each row of inclined throwing supports after each row of inclined throwing supports is installed; s2, removing all the back pressure soil in the foundation pit, and constructing each floor from the bottom to the top in sequence; before the construction of the outer wall of each floor, dismantling the inclined throwing support corresponding to the floor, and reserving a corresponding inclined throwing support hole on the bottom plate of the floor which is constructed; the corresponding inclined throwing support is that the inclined throwing support penetrates through the outer wall of the floor; and when the upper floor of the floor with the inclined cast support removed is constructed, filling the inclined cast support hole with concrete. The inclined throwing support is firstly dismantled, and then the construction of the outer wall is carried out, so that the inclined throwing support hole is prevented from being reserved on the outer wall, the structural integrity of the outer wall is ensured, and the effect of preventing leakage is achieved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a seamless leakage-proof construction method for a basement exterior wall.
Background
In foundation pit excavation and underground structure construction, in order to accelerate construction progress and shorten construction period, key parts such as basement outer walls and floors of each layer of a basement are usually constructed simultaneously when the inclined throwing support is supported, after concrete strength meets requirements, the inclined throwing support is dismantled, and at the moment, large holes are reserved at the intersection of the inclined throwing support, the basement outer walls and the floors of each layer of the basement, so that surface water or underground water leakage is easily caused. The method is characterized in that a water-proof material is adopted to block holes and other anti-leakage methods for treatment, but the blocking material shrinks due to hydration or cracks due to aging along with the passage of time, so that gaps are easy to generate, leakage can still be caused, and finally, the unfavorable phenomena of corrosion of reinforcing steel bars of the outer wall and each floor of the basement and the like are caused.
Disclosure of Invention
Technical problem to be solved
In view of the above disadvantages and shortcomings of the prior art, the present invention provides a seamless leakage-proof construction method for basement exterior wall, which solves the technical problem of basement exterior wall leakage caused by inclined polishing support disassembly.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
a seamless leakage-proof construction method for basement exterior walls comprises the following steps:
s1, sequentially installing a plurality of rows of inclined throwing supports for supporting the pit wall of a foundation pit from top to bottom, and removing back pressure soil corresponding to each row of inclined throwing supports after each row of inclined throwing supports is installed;
before each row of inclined throwing supports are installed, installing grooves for installing the inclined throwing supports are formed in the back pressure soil corresponding to the inclined throwing supports;
s2, removing residual back pressure soil in the foundation pit, and constructing each floor from the bottom to the top in sequence;
before the construction of the outer wall of each floor, dismantling the inclined throwing support corresponding to the floor, and reserving a corresponding inclined throwing support hole on the bottom plate of the constructed floor;
the corresponding inclined throwing support is that the inclined throwing support penetrates through the outer wall of the floor;
and when the upper floor of the floor with the inclined cast support removed is constructed, filling the inclined cast support hole with concrete.
Preferably, in step S1, the foundation pit and the multiple layers of the counter-pressure soil are obtained by basin-type soil excavation.
Preferably, before the inclined throwing support is installed in the step S1, a plurality of secant piles are poured along the wall of the foundation pit, the secant piles extend and are arranged along the vertical direction, a plurality of connecting beams are sequentially poured along the secant piles from top to bottom, the connecting beams are arranged along the horizontal direction, the top end of the inclined throwing support is connected with the connecting beams, and the bottom of the inclined throwing support is connected with the bottom of the foundation pit.
Preferably, the inclined throwing support comprises an upper buttress and a lower buttress, and a steel support is arranged between the upper buttress and the lower buttress.
Preferably, the upper buttress and the connecting beam are integrally cast by reinforced concrete, the lower buttress and the bottom plate of the bottommost floor are integrally cast by reinforced concrete, and the steel support is abutted against the upper buttress and the lower buttress.
Preferably, the contact surface of the upper buttress and the steel support is a first connection surface, the contact surface of the lower buttress and the steel support is a second connection surface, the first connection surface and the second connection surface are parallel to each other, and the first connection surface corresponds to the second connection surface.
Preferably, a steel anchor plate is arranged between the upper buttress and the connecting beam.
Preferably, when each floor is constructed, the bottom plate of the floor, the support replacing beam for supporting the bottom and the outer wall are poured in sequence, and the inclined throwing support corresponding to the floor needs to be removed before the outer wall is poured.
Preferably, after all the back pressure soil in the foundation pit is removed, the bottom in the foundation pit is tamped, concrete is poured on the bottom in the foundation pit to serve as a force transmission cushion layer, and the bottom plate of the bottom floor is poured on the top of the force transmission cushion layer.
Preferably, when the inclined throwing support is disassembled and the steel support cannot be disassembled due to space limitation, the steel support can be disassembled after being divided into multiple sections.
(III) advantageous effects
The invention has the beneficial effects that: (1) The foundation pit wall is supported by the reserved back pressure soil, so that the foundation pit wall is prevented from deforming.
(2) When the multiple layers of inclined throwing supports are installed, multiple layers of back pressure soil are sequentially removed from top to bottom, each layer of back pressure soil is removed, and the inclined throwing supports are installed at the same time, so that the unremoved back pressure soil and the installed inclined throwing supports jointly support the pit wall of the foundation pit, and the stability of the foundation pit is kept; and the multiple layers of inclined throwing supports are installed simultaneously, so that the time for installing the inclined throwing supports is shortened, and the construction period is shortened.
(3) The inclined throwing support is firstly dismantled, and then the construction of the outer wall is carried out, so that the inclined throwing support hole is prevented from being reserved on the outer wall, the structural integrity of the outer wall is ensured, and the effect of preventing leakage is achieved.
Drawings
FIG. 1 is a block diagram of a method flow in an embodiment of the invention;
FIG. 2 is a schematic view of the installation of a diagonal throw brace in an embodiment of the present invention;
fig. 3 is a left side view of the diagonal throwing brace of fig. 2 in combination with a view of each floor.
[ description of reference ]
1: a crown beam; 2: mounting grooves; 3: a lower buttress; 4: the upper layer is pressed against the soil; 5: the lower layer is made of back pressure soil; 6: upward inclined throwing support; 7: a wale; 8: an occlusive pile; 9: a lower inclined throwing support; 10: an upper buttress; 11: carrying out first layer; 12: negative two layers; 13: and (5) negative three layers.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present embodiments of the invention, which are illustrated in the accompanying drawings.
Examples
As shown in fig. 1 to 3, a seamless leakage-proof construction method for basement exterior wall includes the following steps:
s1, sequentially installing a plurality of rows of inclined polishing supports for supporting the pit wall of a foundation pit from top to bottom, and removing back pressure soil corresponding to each row of inclined polishing supports after each row of inclined polishing supports is installed;
before each row of inclined throwing supports are installed, an installation groove 2 for installing the inclined throwing supports is formed in the back pressure soil corresponding to the row of inclined throwing supports.
Because the foundation pit has certain length and width, each row of inclined throwing support comprises a plurality of inclined throwing supports, and certain time is needed for installing each row of inclined throwing support, when each row of inclined throwing support is installed, the back pressure soil corresponding to the inclined throwing support can be removed as long as the inclined throwing support is installed.
The basement includes the multilayer floor, and every floor includes outer wall, bottom plate and the roof beam that trades of supporting the bottom plate.
As shown in fig. 2 to 3, in this embodiment, the depth of the foundation pit is 12.6m, the diameter of the secant pile is 1m, the distance between adjacent secant piles is 1m, and the basement to be built has three floors, namely, a negative first floor 11, a negative second floor 12 and a negative third floor 13 from top to bottom. Two layers of inclined polishing supports are installed in advance and are respectively an upper-row inclined polishing support and a lower-row inclined polishing support. Two layers of counter-pressure soil, namely upper layer counter-pressure soil 4 and lower layer counter-pressure soil 5, are correspondingly arranged in the foundation pit.
Certainly, the basement of this scheme is not limited to three-layer floor, can be two-layer, four layers or five layers, and the inclined throwing of this scheme props and back pressure soil is not limited to two-layer yet, can be one deck, three-layer or four layers.
As shown in fig. 2, in this embodiment, the upper layer of back pressure soil 4 is sequentially removed from left to right, the upper row of inclined throwing struts is installed, the upper row of inclined throwing struts includes a plurality of upper inclined throwing struts 6, the lower layer of back pressure soil 5 is sequentially removed from left to right, the lower row of inclined throwing struts is installed, the lower row of inclined throwing struts includes a plurality of lower inclined throwing struts 9, and the plurality of lower inclined throwing struts 9 correspond to the plurality of upper inclined throwing struts 6 one to one. In order to shorten the construction period, the upper row of inclined throwing supports and the lower row of inclined throwing supports can be installed at the same time, namely, the lower inclined throwing support 9 corresponding to the upper inclined throwing support 6 can be installed only after the installation of the upper inclined throwing support is completed. The directions of arrows in fig. 2 are the direction of removing the upper layer of back pressure soil 4 and the lower layer of back pressure soil 5, and the direction of installing the upper inclined throw support 6 and the lower inclined throw support 9.
In order to fully utilize the supporting effect of the back pressure soil on the pit wall of the foundation pit, when the inclined throwing support is installed, an installation groove 2 is formed in the back pressure soil corresponding to the preset position for installing the inclined throwing support, and the back pressure soil is cleaned after the inclined throwing support is installed.
As shown in fig. 2, specifically, in the present embodiment, when the upper row of inclined struts is installed, an installation groove 2 for installing the upper inclined strut is firstly formed in the upper layer of counter-pressure soil 4, and after the upper inclined strut 6 is installed, the upper layer of counter-pressure soil 4 corresponding to the upper inclined strut 6 is cleaned. Similarly, when the lower row of inclined throwing struts are installed, an installation groove 2 for installing the lower inclined throwing strut 9 is formed in the lower-layer back pressure soil 5, and after the lower inclined throwing strut 9 is installed, the lower-layer back pressure soil 5 corresponding to the lower inclined throwing strut 9 can be cleaned, or after all the lower inclined throwing struts 9 are installed, the lower-layer back pressure soil 5 is cleaned.
S11, excavating the foundation pit by adopting a basin-type soil excavating mode so that the wall of the foundation pit covers multiple layers of back pressure soil, wherein the back pressure soil is arranged along the periphery of the wall of the foundation pit, and the back pressure soil can support all the walls of the foundation pit to prevent the wall of the foundation pit from deforming or collapsing.
S12, before the inclined cast support is installed, a plurality of secant piles are poured along the wall of the foundation pit, the secant piles are arranged in an extending mode in the vertical direction, the connecting beams are arranged in the horizontal direction along the connecting beams on the top of the secant piles, the top end of the inclined cast support is connected with the connecting beams, and the bottom of the inclined cast support is connected with the bottom of the foundation pit.
The inclined cast support comprises an upper support pier 10 and a lower support pier 3, and a steel support is arranged between the upper support pier 10 and the lower support pier 3.
In this embodiment, two layers of connecting beams, namely a crown beam 1 and a wale 7, are installed in the height direction of the occlusive pile 8, the crown beam 1 is placed at the top of the occlusive pile 8, and the wale 7 is placed in the middle of the occlusive pile. The crown beam 1 and the waist beam 7 are respectively and correspondingly connected with an upper row of inclined throwing supports and a lower row of inclined throwing supports. In this embodiment, the crown beam 1 is cast first.
S13, tamping the preset position for pouring the lower support pier 3, paving C20 fine stone concrete with the thickness of 100mm to serve as a force transfer cushion layer, pouring the bottom plate of the bottommost floor on the force transfer cushion layer, pouring the lower support pier 3 on the top of the bottom plate of the bottommost floor, and pouring the upper support pier 10 on the preset position of the connecting beam on the uppermost layer.
The upper buttress 10 is connected with the connecting beam, and the lower buttress 3 is connected with the bottom plate of the bottommost floor. In this embodiment, the upper buttress 10 and the connecting beam are integrally cast by reinforced concrete, and the lower buttress and the bottom plate of the bottommost floor are integrally cast by reinforced concrete.
Before the upper buttress 10 and the lower buttress 3 are poured, a multipoint laser ranging method is adopted for measurement so as to determine the positions of the upper buttress 10 and the lower buttress 3. The contact surface of the upper buttress 10 and the steel support is a first connection surface, the contact surface of the lower buttress 3 and the steel support is a second connection surface, the first connection surface and the second connection surface are parallel to each other, and the first connection surface and the second connection surface correspond to each other.
In order to increase the stress area of the connecting beam and prevent the local stress of the connecting beam from being overlarge, a steel anchor plate is arranged between the connecting beam and the upper pier 10.
In this embodiment, the upper pier 10 of the upper row of inclined casting support is connected with the crown beam 1 through concrete, and the lower pier 3 of the upper row of inclined casting support is connected with the bottom plate of the negative three-layer 13 through concrete. The upper pier 10 of the upper row of inclined polishing supports corresponds to the negative second floor 12, namely the lower row of inclined polishing supports corresponds to the negative first floor 11.
S14, after the strength of the upper pier 10 and the lower pier 3 used for installing the inclined throwing support on the uppermost layer reaches a preset value, concrete poured into the upper pier 10 and the lower pier 3 is solidified, after the strength of the upper pier reaches the preset value, the steel support on the uppermost layer is installed, the top end of the steel support is abutted to the upper pier 10, and the bottom end of the steel support is abutted to the lower pier 3.
Specifically, the movable head is firstly installed at the bottom of the steel support, the movable head is fixed in the steel support, the steel support is installed at a preset position by using a crane, the movable head is pulled out, the bottom end of the movable head is abutted to the lower support pier 3, and the top end of the steel support is abutted to the upper support pier 10.
After the steel support is placed, prestress needs to be applied to the steel support in time through a hydraulic jack, so that two ends of the steel support are respectively abutted to the upper pier 10 and the lower pier 3.
And S15, sequentially installing the inclined polishing supports of the other layers until all the inclined polishing supports are installed.
In this embodiment, the upper pier 10 of the lower inclined polishing support corresponds to the second negative layer 12, that is, the lower inclined polishing support corresponds to the second negative layer 12.
S2, removing residual back pressure soil in the foundation pit, and constructing each floor from the bottom of the foundation pit to the top in sequence;
before the construction of the outer wall of each floor, removing the inclined throwing support corresponding to the floor, and reserving a corresponding inclined throwing support hole on the bottom plate of the constructed floor;
the corresponding inclined throwing support means that the inclined throwing support in the design scheme penetrates through the outer wall of the floor;
and when the upper floor of the floor with the inclined cast support removed is constructed, filling the inclined cast support hole with concrete.
S21, removing all counter-pressure soil in the foundation pit, pouring the bottom plates of the rest bottom floors, completing pouring of the bottom plates of the whole bottom floors, and pouring the outer walls of the bottom floors. The bottom plate of the bottom floor is the bottom plate on the bottom plate force transmission cushion layer of the foundation pit.
Since the construction of pouring the bottom floor is started after all the inclined throwing supports are installed, in this embodiment, the bottom floor is not provided with a corresponding inclined throwing support, that is, the height of the upper pier 10 of the lower inclined throwing support 9 is higher than that of the floor of the minus three floors 13.
And S22, constructing all the other floors in sequence, pouring a support exchange beam for supporting the bottom plate of the floor when constructing all the other floors, pouring the bottom plate of the floor, removing the inclined throw support corresponding to the floor, pouring the outer wall of the floor, and filling the inclined throw support hole in the bottom plate of the constructed floor.
In the process of dismantling the inclined cast support, the deformation condition of the foundation pit needs to be observed at any time, the inclined cast support is firstly tried to be dismantled, and if the pit wall of the foundation pit has no settlement deformation or has extremely small settlement deformation, the inclined cast support can be dismantled.
In the process of dismantling the steel support, if the whole steel support is not easy to take out, the steel support can be dismantled after being cut into multiple sections.
In this embodiment, the support replacing beam, the bottom plate and the outer wall of the negative three-layer 13 are poured first, and then the support replacing beam of the negative two-layer 12 and the bottom plate of the negative two-layer 12 are poured. And (3) removing the lower row of inclined throwing supports, and pouring the outer wall bearing the second floor 12, the support replacing beam bearing the bottom plate bearing the first floor 11, the bottom plate bearing the first floor 11 and the inclined throwing support holes on the bottom plate bearing the second floor 12. And removing the upper row of inclined throwing supports, and pouring the outer wall bearing the first layer 11, the support replacing beam bearing the top plate bearing the first layer 11, the inclined throwing support holes on the bottom plate bearing the second layer 12 and the inclined throwing support holes on the bottom plate bearing the first layer 11.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are in fact significant. 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; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. 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 the present invention, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly or obliquely above the second feature, or simply mean 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 second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means 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 above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (10)
1. A seamless and leak-proof construction method for basement exterior walls is characterized by comprising the following steps:
s1, sequentially installing a plurality of rows of inclined throwing supports for supporting the pit wall of a foundation pit from top to bottom, and removing back pressure soil corresponding to each row of inclined throwing supports after each row of inclined throwing supports is installed;
before each row of inclined throwing supports are installed, installing grooves (2) for installing the inclined throwing supports are formed in the back pressure soil corresponding to the inclined throwing supports;
s2, removing residual back pressure soil in the foundation pit, and constructing each floor from the bottom to the top in sequence;
before the construction of the outer wall of each floor, removing the inclined throwing support corresponding to the floor, and reserving a corresponding inclined throwing support hole on the bottom plate of the constructed floor;
the corresponding inclined throwing support means that the inclined throwing support penetrates through the outer wall of the floor;
and when the upper floor of the floor with the inclined cast support removed is constructed, filling the inclined cast support hole with concrete.
2. The seamless leakage-proof construction method for the basement exterior wall according to claim 1,
in step S1, the foundation pit and the multiple layers of the counter-pressure soil are obtained in a basin-type soil excavation mode.
3. The seamless leakage-proof construction method for the basement exterior wall according to claim 1,
in the step S1, before the inclined throwing support is installed, a plurality of secant piles (8) are poured along the wall of the inner pit of the foundation pit, the secant piles (8) extend along the vertical direction, a plurality of connecting beams are sequentially poured along the secant piles (8) from top to bottom, the connecting beams are arranged along the horizontal direction, the top end of the inclined throwing support is connected with the connecting beams, and the bottom of the inclined throwing support is connected with the bottom of the foundation pit.
4. The seamless leakproof construction method for the basement exterior wall according to claim 3, wherein,
the inclined throwing support comprises an upper buttress (10) and a lower buttress (3), and a steel support is arranged between the upper buttress (10) and the lower buttress (3).
5. The seamless leakage-proof construction method for the basement exterior wall according to claim 4,
the upper buttress (10) and the connecting beam are formed by integrally pouring reinforced concrete, the lower buttress (3) and the bottom plate of the bottom floor are formed by integrally pouring reinforced concrete, and the steel support is abutted to the upper buttress (10) and the lower buttress (3).
6. The seamless leakage-proof construction method for the basement exterior wall according to claim 4,
go up buttress (10) with the contact surface of steel shotcrete is first connection face, lower buttress (3) with the contact surface of steel shotcrete is the second connection face, first connection face with the second connection face is parallel to each other, first connection face with the second connection face is corresponding.
7. The seamless leakproof construction method for the basement exterior wall according to claim 4, wherein,
and a steel anchor plate is arranged between the upper buttress (10) and the connecting beam.
8. The seamless leakproof construction method for the basement exterior wall according to claim 1,
when each floor is constructed, the bottom plate of the floor and the support beam used for supporting the bottom are poured in sequence, the inclined throwing support corresponding to the floor is removed, and the outer wall of the floor is poured.
9. The seamless leakproof construction method for the basement exterior wall according to claim 1,
and after all the counter-pressure soil in the foundation pit is removed, the construction of the bottom plate of the bottom floor is completed.
10. The seamless leakage-proof construction method for the basement exterior wall according to claim 4,
when the inclined throwing support is dismantled, the steel support can be divided into a plurality of sections and then dismantled when the steel support cannot be dismantled due to space limitation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575480A (en) * | 2023-07-13 | 2023-08-11 | 中国建筑第六工程局有限公司 | Construction method for supporting steel pipe of deep foundation pit penetrating through basement floor slab |
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| CN116575480B (en) * | 2023-07-13 | 2023-10-10 | 中国建筑第六工程局有限公司 | Construction method for supporting steel pipe of deep foundation pit penetrating through basement floor slab |
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