CN112196335A - Annular underground garage and construction method thereof - Google Patents
Annular underground garage and construction method thereof Download PDFInfo
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- CN112196335A CN112196335A CN202011050162.8A CN202011050162A CN112196335A CN 112196335 A CN112196335 A CN 112196335A CN 202011050162 A CN202011050162 A CN 202011050162A CN 112196335 A CN112196335 A CN 112196335A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/08—Garages for many vehicles
- E04H6/12—Garages for many vehicles with mechanical means for shifting or lifting vehicles
- E04H6/18—Garages for many vehicles with mechanical means for shifting or lifting vehicles with means for transport in vertical direction only or independently in vertical and horizontal directions
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
- E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces
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Abstract
The invention discloses an annular underground garage and a construction method thereof, wherein the annular underground garage comprises: the steel sheet pile outer wall is annular; the lifting channel is arranged in the outer wall of the steel sheet pile, the lifting direction of the lifting channel is the same as the height direction of the outer wall of the steel sheet pile, and the lifting channel is used for transferring vehicles on a parking layer and a vehicle inlet and a vehicle outlet of the annular underground garage; the parking layers are arranged in multiple layers, and each parking layer is arranged between the outer wall of the steel sheet pile and the lifting channel at intervals; the lifting channel is formed by enclosing a plurality of groups of upright columns, the upright columns are arranged along the radial direction of the annular underground garage, and two adjacent upright columns are connected through a cross beam; and partition walls are arranged between the outer walls of the steel sheet piles and the groups of the upright columns. The invention discloses an annular underground garage and a construction method thereof.
Description
Technical Field
The invention belongs to the technical field of underground building construction, and particularly relates to an annular underground garage and a construction method thereof.
Background
With the improvement of the living standard of people, the owned quantity of all vehicles of people is continuously increased, the urban building area is limited, the actual area capable of being used for building the overground garage is less, and the underground garage is vigorously developed in order to accommodate the continuously increased number of automobiles.
In the structure in current underground garage, because annular underground garage has the advantage that monomer area is few, consequently obtains vigorously developing, but current annular underground garage work progress generally is: the method comprises the steps of firstly constructing fender piles along the edge of a foundation pit to form foundation pit support, then excavating the foundation pit, wherein the excavation of the foundation pit adopts a forward construction method or a reverse construction method, but no matter which foundation pit excavation mode is adopted, a large number of foundation pit inner supports are required to be adopted in the excavation process of the foundation pit, the supports are gradually erected along with the excavation of the foundation pit and are gradually removed along with the construction of an underground garage, the erection and removal of the large number of inner supports not only prolongs the construction period, but also greatly increases the construction labor and material cost.
In view of the above-mentioned shortcomings of the existing underground garage, the inventor of the present invention has made extensive practical experience and professional knowledge for many years in the design and manufacture of such products, and has actively studied and innovated in cooperation with the application of theory, in order to create an annular underground garage and a construction method thereof, so that the annular underground garage has higher practicability. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention aims to provide an annular underground garage and a construction method thereof, which can overcome the defects of high construction cost, long period and the like of the traditional annular underground garage.
In order to achieve the purpose, the invention provides the following technical scheme:
an annular underground garage comprising:
the steel sheet pile outer wall is annular;
the lifting channel is arranged in the outer wall of the steel sheet pile, the lifting direction of the lifting channel is the same as the height direction of the outer wall of the steel sheet pile, and the lifting channel is used for transferring vehicles on a parking layer and a vehicle inlet and a vehicle outlet of the annular underground garage;
the parking layers are arranged in multiple layers, and each parking layer is arranged between the outer wall of the steel sheet pile and the lifting channel at intervals;
the lifting channel is formed by enclosing a plurality of groups of upright columns, the upright columns are arranged along the radial direction of the annular underground garage, and two adjacent upright columns are connected through a cross beam;
and a partition wall is arranged between the outer wall of the steel sheet pile and the plurality of groups of the upright post groups, and each parking layer is divided into a plurality of parking parts through the partition wall.
As a preferred technical scheme, each group of upright columns respectively comprises two groups of upright columns which are fixedly connected, and the two groups of upright columns respectively comprise an outer upright column close to the outer wall of the steel sheet pile and an inner upright column close to the lifting channel.
As a preferable technical scheme, a second steel sheet pile is arranged between two adjacent groups of the outer columns, and the second steel sheet pile and the outer columns form a temporary inner wall.
As a preferred technical scheme, the garage is further provided with a top plate, the top plate is arranged at the top of the annular underground garage, and a vehicle inlet and a vehicle outlet used for the vehicle to enter and exit the lifting channel are formed in the top plate.
As a preferred technical scheme, the partition wall is formed by connecting mutually engaged third steel sheet piles, and the third steel sheet pile close to the outer wall of the steel sheet pile is fixedly arranged on the outer wall of the steel sheet pile.
The invention also discloses a construction method of the annular underground garage, which comprises the following steps:
s1, sinking the first steel sheet piles to the designed depth along the edge of the foundation pit to be excavated, and mutually engaging the adjacent first steel sheet piles to form the outer walls of the steel sheet piles;
s2, constructing stirring piles along the planned lifting channel, and sinking the vertical column groups at intervals before the stirring piles are not solidified;
s3, sinking second steel sheet piles between the outer columns of the adjacent column groups, and forming temporary inner walls by the second steel sheet piles and the outer columns;
s4, sinking a third steel sheet pile between the outer upright post and the outer wall of the steel sheet pile along the radial direction by taking the center of the proposed lifting channel as the center, and enabling the adjacent third steel sheet piles to be mutually meshed to form the partition wall, wherein the partition wall divides the temporary space between the outer wall of the steel sheet pile and the temporary inner wall into foundation pits;
s5, excavating earthwork in the foundation pit until the construction elevation of a top plate, pouring the top plate, reserving a top plate hole at the position corresponding to the second steel sheet pile, continuously excavating the earthwork, and erecting an enclosing purlin on the inner side of the outer wall of the steel sheet pile;
s6, after the earthwork excavation in the foundation pit is finished, pulling out the second steel sheet pile from the top plate hole for recovery, and after the second steel sheet pile is pulled out, forming an inlet and an outlet between the lifting channel and the parking part between the adjacent outer upright columns;
and S7, pouring and sealing the top plate hole after the second steel sheet pile is completely recovered.
As a preferable mode, in the step S5, the earthwork in the temporary inner wall is excavated, and when the earthwork in the temporary inner wall is excavated to 4 to 5 meters, the excavation of the earthwork between the temporary inner wall and the outer wall of the steel sheet pile is started.
As a preferable technical solution, when the earthwork in the temporary inner wall is excavated to the construction elevation of the parking platform where the earthwork is excavated to the parking level, the excavation of the earthwork is suspended, and the cross beam is erected between the inner columns of the two adjacent sets of the columns along the elevation of the parking platform.
As a preferred technical scheme, the enclosing purlin is made of section steel, and two ends of the enclosing purlin in each sub-foundation pit are welded on the partition wall.
As a preferable technical scheme, the outer columns are connected with the adjacent second steel sheet piles through temporary inner wall locking notches;
and the outer upright posts are connected with the third steel sheet piles through partition wall locking notches.
By adopting the technical scheme, the following technical effects can be realized:
the invention discloses an annular underground garage and a construction method thereof. The steel sheet pile outer wall, the partition wall and the stand in garage not only form the bearing structure in underground garage, still regard as the supporting construction of foundation ditch, the partition wall can provide stronger supporting role for the steel sheet pile outer wall, in the excavation of foundation ditch in-process, only need in step erect the inboard of steel sheet pile outer wall enclose the purlin can, and need not to increase other supporting construction, consequently not only can improve the excavation efficiency of foundation ditch, still reduced foundation ditch supporting's expense.
Drawings
Fig. 1 is a schematic structural view after construction of an outer wall, a temporary inner wall and a partition wall of a steel sheet pile is completed;
fig. 2 is a schematic structural view when earth excavation of a temporary inner wall is performed;
FIG. 3 is a schematic structural diagram of excavation of earthwork of a sub-foundation pit;
FIG. 4 is a schematic structural view after the second steel sheet pile is pulled out;
FIG. 5 is a schematic view of the structure in the direction A-A in FIG. 1;
FIG. 6 is a schematic structural view after the top plate construction is completed;
FIG. 7 is a schematic structural view of excavation of earth in a foundation pit;
fig. 8 is a schematic structural view of the outer column.
FIG. 9 is a top view of a particular embodiment of an annular underground garage;
FIG. 10 is a longitudinal cross-sectional view of FIG. 9;
wherein, fig. 7 shows that the excavation progress of the earthwork in the temporary inner wall is faster than the progress of the sub-foundation pit;
10-steel sheet pile outer wall; 12-a first steel sheet pile; 20-temporary inner walls; 21-outer columns; 211-inner wall locking notch; 212-partition locking notch; 22-inner upright column; 23-a second steel sheet pile; 25-a cross beam; 30-partition wall, 32-third steel sheet pile; 40-stirring piles; 51-a lifting channel; 52-temporary space, 521-foundation pit division; 60-surrounding purlin;
100-ground, 110-designed bottom surface of foundation pit; 200-an excavator; 300-parking level, 310-parking platform, 301-parking section; 120-a top plate; 121-top plate holes; 122-an entrance to and exit from the earth; 125-vehicle access.
Detailed Description
To further illustrate the technical means and effects adopted by the present invention to achieve the object of the invention, the detailed embodiments, features and effects of the annular underground garage and the construction method thereof according to the present invention are described in detail below.
The invention discloses an annular underground garage, as shown in fig. 9 and 10, comprising: the steel sheet pile outer wall 10 is annular; the lifting channel 51 is arranged in the steel sheet pile outer wall 10, the lifting direction of the lifting channel 51 is the same as the height direction of the steel sheet pile outer wall 10, and the lifting channel is used for transferring vehicles in a parking layer 300 and a vehicle inlet and outlet 125 of the annular underground garage; the parking levels 300 are arranged in multiple layers, each parking level 300 is arranged between the steel sheet pile outer wall 10 and the lifting channel 51 at intervals, each parking level 300 is communicated with the lifting channel 51, and vehicles can enter and exit each parking level 300 through the lifting channel 51; the lifting channel 51 is formed by enclosing a plurality of groups of upright post groups, the upright post groups are arranged along the radial direction of the annular underground garage, and two adjacent upright post groups are connected through a cross beam 25; partition walls 30 are arranged between the steel sheet pile outer walls 10 and the multiple groups of upright post groups, and each parking layer 300 is divided into multiple parking portions 301 through the partition walls 30.
As an optimal technical scheme, each group of upright column groups respectively comprises two groups of upright columns which are fixedly connected, the two groups of upright columns are respectively an outer upright column 21 close to the outer wall 10 of the steel sheet pile and an inner upright column 22 close to the lifting channel 51, and preferably, the outer upright columns 21 and the inner upright columns 22 of the same group are welded together, so that the connection between the outer upright columns 21 and the inner upright columns 22 of the same group is firmer, and the supporting strength of the annular underground garage is effectively increased. Preferably, the cross beam 25 is disposed between two adjacent sets of the inner pillars 22 at an elevation along the parking platform 310 of the parking level 300, and two ends of the cross beam 25 are respectively welded to the two adjacent sets of the inner pillars 22 for increasing the connection strength.
As a preferred technical scheme, a second steel sheet pile 23 is arranged between two adjacent groups of outer columns 21, a temporary inner wall 20 is formed by the second steel sheet pile 23 and the outer columns 21, specifically, a temporary inner wall locking notch 211 is arranged on each of two opposite sides of each outer column 21 along the tangential direction of the edge of the lifting channel 51 and used for connecting the second steel sheet pile 23, the second steel sheet piles 23 and the outer columns 21 can jointly form the temporary inner wall 20 and are pulled out after excavation of foundation pit earthwork is completed, the temporary inner wall 20 is arranged, two annular supporting structures are formed in the foundation pit, and safety during excavation of the foundation pit earthwork is further guaranteed.
As a preferred technical scheme, a roof 120 is further provided, the roof 120 is disposed at the top of the annular underground garage, and a vehicle entrance 125 for a vehicle to enter and exit the lifting passage 51 is formed in the roof 120.
As a preferred technical scheme, partition wall 30 is formed by connecting the third steel sheet pile 32 of interlock each other, and be close to the fixed setting on steel sheet pile outer wall 10 of third steel sheet pile 32 of steel sheet pile outer wall 10, the inboard of steel sheet pile outer wall 10 still is provided with encloses purlin 60, specifically, along the radial of lift passageway 51, it has partition wall 30 fore shaft 212 to weld in the one side of outer pillar 21 towards the foundation ditch outside, third steel sheet pile 32 that is close to outer pillar 21 is connected to on outer pillar 21 through partition wall fore shaft 212, because the existence of partition wall 30, enclose purlin 60 and cut apart into the multistage, for the security that improves construction progress and underground structure, the both ends of enclosing purlin 60 weld on partition wall 30, make the enclosed purlin 60 that is cut off connect as a whole through partition wall 30.
The invention also discloses a construction method of the annular underground garage, the concrete construction flow chart is shown in fig. 1-5, wherein, the reference numeral 100 represents the ground, the reference numeral 200 represents an excavator, and is only used for representing that the area is in the state of earth excavation, and does not represent that the earth excavation by the excavator 200 is necessary, in addition, the direction facing to the outside of the foundation pit is called as the outside, and the direction opposite to the outside, namely the direction facing to the inside of the foundation pit is called as the inside, in particular, the construction method of the annular underground garage comprises the following steps:
s1, sinking the first steel sheet piles 12 to the designed depth along the edge of the foundation pit to be excavated, and mutually meshing the adjacent first steel sheet piles 12 to form a steel sheet pile outer wall 10;
s2, building the mixing pile 40 along the planned lifting channel 51, and sinking the column set at intervals before the mixing pile 40 is not solidified, specifically, using a mixing pile machine to mix downwards along the sinking position of the second steel sheet pile 23, forming the mixing pile 40 below the designed bottom surface 110 of the foundation pit, completing the sinking of the second steel sheet pile 23 before the mixing pile 40 is not solidified, and the mixing pile 40 can also be used as an anti-pulling pile at the bottom of the foundation pit;
s3, sinking a second steel sheet pile 23 between the outer columns 21 of adjacent column groups, forming a temporary inner wall 20 by the second steel sheet pile 23 and the outer columns 21 together, specifically, sinking the column groups at intervals along the edge of the intended lifting channel 51, each column group respectively comprises two columns, the two columns of each column group are arranged along the radial direction of the underground garage, wherein the column facing the outside of the garage is the outer column 21, the column facing the inside of the garage is the inner column 22, then sinking the second steel sheet pile 23 between the two adjacent outer columns 21, and the multiple groups of second steel sheet piles 23 between the two adjacent outer columns 21 are mutually meshed and connected, the second steel sheet pile 23 and the outer columns 21 together form the temporary inner wall 20, in fig. 5, the outer columns 21 and the inner columns 22 exceed the design bottom 110 of the foundation pit downwards, and the stability of the columns is increased;
s4, sinking the third steel sheet pile 32 between the outer upright posts 21 and the outer wall 10 of the steel sheet pile along the radial direction with the center of the proposed lifting channel 51 as the center, and engaging the adjacent third steel sheet piles 32 to form a partition wall 30, wherein the partition wall 30 divides the temporary space 52 between the outer wall 10 of the steel sheet pile and the temporary inner wall 20 into foundation pits 521;
s5, excavating earthwork in the foundation pit until the construction elevation of the top plate 120 is reached, then pouring the top plate 120, reserving a top plate hole 121 at a position corresponding to the second steel sheet pile 23, namely reserving the top plate hole 121 in an area, corresponding to the second steel sheet pile 23, of the top plate 120 in the vertical direction, continuing excavating the earthwork, and erecting an enclosing purlin 60 on the inner side of the outer wall 10 of the steel sheet pile; specifically, an entrance and exit 122 for transporting out earthwork is reserved on the top plate 120, and the entrance and exit is also used for entering and exiting of constructors and equipment, wherein the entrance and exit corresponds to an area surrounded by the temporary inner wall 20, the entrance and exit corresponds to an area between the temporary inner wall 20 and the steel sheet pile outer wall 10, and after construction is completed, the entrance and exit are reserved as vehicle entrance and exit 125 channels;
s6, after the excavation of the earth in the foundation pit is completed, pulling out the second steel sheet pile 23 from the top plate hole 121 and recovering it, and after the second steel sheet pile 23 is pulled out, forming an entrance/exit between the lifting passage 51 and the parking section 301 between the adjacent outer columns 21;
and S7, after the second steel sheet pile 23 is completely recovered, pouring and sealing the top plate hole 121.
And S8, welding a third steel sheet pile 32 which is close to the outer wall 10 of the steel sheet pile strongly on the outer wall 10 of the steel sheet pile, so that the partition wall 30 is connected to the outer wall 10 of the steel sheet pile. And after the earthwork excavation is finished, the installation of other equipment in the foundation pit is continuously finished.
As a preferable mode, in step S5, the earthwork in the temporary interior wall 20 is excavated first, when 4-5 meters of earth is excavated downwards in the temporary inner wall 20, excavation of earth between the temporary inner wall 20 and the steel sheet pile outer wall 10 is started, and specifically, as shown in fig. 7, after the construction of the roof panel 120 is completed, the earthwork of the temporary inner wall 20 is excavated first, i.e., the earthwork in the area marked 51 shown in fig. 1, when 4-5 meters of the earthwork in the temporary inner wall 20 is excavated, excavation of the earthwork between the temporary inner wall 20 and the steel sheet pile outer wall 10 is started again, as shown in the area designated 52 in fig. 1, the earthwork in each sub-excavation 521 may be excavated in steps, in this embodiment, in order to accelerate excavation of earth, excavation of earth is performed simultaneously in each sub-foundation pit 521, and a third steel sheet pile 32 adjacent to the outer wall 10 of the steel sheet pile is welded to the outer wall 10 of the steel sheet pile simultaneously with excavation of the sub-foundation pit 521.
As a preferable technical solution, when the earthwork in the temporary inner wall 20 is excavated to the construction elevation of the parking platform 310 of the parking level 300, the excavation of the earthwork is suspended, the cross beam 25 is erected between the inner columns 22 of the two adjacent column groups along the elevation of the parking platform 310, and the two columns in the same column group are welded together along with the excavation of the earthwork in the temporary inner wall 20, that is, the inner column 22 and the outer column 21 in the same column group are welded together. When the earthwork of the temporary inner wall 20 is excavated, the cross beam 25 is erected between the two adjacent inner columns 22, so that structural weakening caused by the fact that the second steel sheet piles 23 are pulled out after the earthwork excavation is completed can be reduced, and the stability of the foundation pit supporting structure is ensured.
As a preferred technical solution, the enclosing purlin 60 is made of steel sections, and in order to improve the overall strength of the enclosing purlin 60, both ends of the enclosing purlin 60 in each sub-foundation pit 521 are welded to the partition wall 30.
As a preferable technical solution, the outer column 21 and the adjacent second steel sheet pile 23 are connected by a temporary inner wall locking notch 211; specifically, as shown in fig. 8, in order to enhance the connection strength between the second steel sheet pile 23 and the outer column 21 and facilitate the pulling and retrieving of the second steel sheet pile 23, in this embodiment, temporary inner wall locking notches 211 are provided on two opposite sides of the outer column 21 along the tangential direction of the edge of the proposed elevating channel 51, and the second steel sheet pile 23 adjacent to the outer column 21 is connected to the outer column 21 through the temporary inner wall locking notches 211.
The outer column 21 and the third steel sheet pile 32 are connected by a partition wall locking notch 212, specifically, in order to enhance the connection strength between the third steel sheet pile 32 and the outer column 21, the partition wall locking notch 212 is welded on one side of the outer column 21 facing the outside of the foundation pit along the radial direction of the lifting passage 51, and the third steel sheet pile 32 adjacent to the outer column 21 is connected to the outer column 21 by the partition wall locking notch 212.
In the present embodiment, all the steel sheet piles including the first steel sheet pile 12, the second steel sheet pile 23, and the third steel sheet pile 32 are preferably U-shaped steel sheet piles, and the outer column 21 and the inner column 22 are preferably made of seamless steel pipes. The locking notch is arranged to smoothly connect the steel sheet piles together, so that the outer wall 10 of the steel sheet pile, the temporary inner wall 20 and the partition wall 30 are connected into a whole.
The annular underground garage disclosed by the invention is composed of an annular steel sheet pile outer wall 10, a lifting channel 51 and a plurality of parking layers 300 for connecting the lifting channel 51 and the steel sheet pile outer wall 10, is compact in structure, does not need to build and dismantle a traditional foundation pit inner support, greatly reduces the construction period, and greatly reduces the construction cost on the basis.
In addition, in the construction method of the underground garage provided by the invention, before the excavation of the foundation pit, the steel sheet pile outer wall 10 and the temporary inner wall 20 which are sleeved together are firstly formed underground, and the partition wall 30 for connecting the two walls is arranged between the two walls, so that the steel sheet pile outer wall 10, the temporary inner wall 20 and the partition wall 30 form a foundation pit supporting system, before the formal excavation of the foundation pit, the construction of the top plate 120 is firstly completed, the top plate 120 forms stable constraint on the top of the supporting system, the surrounding purlin 60 which is synchronously constructed further ensures the stability in the construction process, a large number of internal supports of the foundation pit are not erected in the construction process, on the basis of reducing the supporting cost of the foundation pit, the excavation progress of the foundation pit is effectively improved, and the corresponding construction cost is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An annular underground garage, comprising:
the steel sheet pile outer wall (10) is annular;
the lifting channel (51) is arranged in the steel sheet pile outer wall (10), the lifting direction of the lifting channel (51) is the same as the height direction of the steel sheet pile outer wall (10), and the lifting channel is used for transferring vehicles on a parking layer (300) and a vehicle inlet and outlet (125) of the annular underground garage;
the parking layers (300) are arranged in multiple layers, and each parking layer (300) is arranged between the steel sheet pile outer wall (10) and the lifting channel (51) at intervals;
the lifting channel (51) is formed by enclosing a plurality of groups of upright columns, the upright columns are arranged along the radial direction of the annular underground garage, and two adjacent upright columns are connected through a cross beam (25);
and a partition wall (30) is arranged between the steel sheet pile outer wall (10) and the plurality of groups of the vertical column groups, and each parking layer (300) is divided into a plurality of parking parts (301) through the partition wall (30).
2. The annular underground garage of claim 1, wherein each of the sets of columns comprises two sets of columns fixedly connected, an outer column (21) adjacent to the outer wall (10) of the steel sheet pile and an inner column (22) adjacent to the lifting channel (51).
3. The annular underground garage of claim 2, wherein a second steel sheet pile (23) is arranged between two adjacent groups of the outer columns (21), and the second steel sheet pile (23) and the outer columns (21) form a temporary inner wall (20).
4. The annular underground garage of claim 1, further comprising a top plate (120), wherein the top plate (120) is disposed on the top of the annular underground garage, and a vehicle entrance/exit (125) for vehicles to enter or exit the lifting passage (51) is formed in the top plate (120).
5. The annular underground garage of claim 1, wherein the partition walls (30) are formed by connecting mutually engaged third steel sheet piles (32), and the third steel sheet piles (32) adjacent to the outer steel sheet pile wall (10) are fixedly arranged on the outer steel sheet pile wall (10).
6. The construction method of the annular underground garage is characterized by comprising the following steps:
s1, sinking the first steel sheet piles (12) to the designed depth along the edge of the foundation pit to be excavated, and mutually engaging the adjacent first steel sheet piles (12) to form the steel sheet pile outer wall (10);
s2, constructing a stirring pile (40) along the planned lifting channel (51), and sinking the column set at intervals before the stirring pile (40) is not solidified;
s3, sinking a second steel sheet pile (23) between the outer columns (21) of the adjacent column groups, and forming a temporary inner wall (20) by the second steel sheet pile (23) and the outer columns (21);
s4, sinking a third steel sheet pile (32) between the outer upright post (21) and the outer wall (10) of the steel sheet pile along the radial direction by taking the center of the proposed lifting channel (51) as the center, and enabling the adjacent third steel sheet piles (32) to be mutually meshed to form the partition wall (30), wherein the temporary space (52) between the outer wall (10) of the steel sheet pile and the temporary inner wall (20) is divided into foundation pits (521) by the partition wall (30);
s5, excavating earthwork in the foundation pit until the construction elevation of a top plate (120), then pouring the top plate (120), reserving a top plate hole (121) at the position corresponding to the second steel sheet pile (23), continuously excavating the earthwork, and erecting an enclosing purlin (60) on the inner side of the outer wall (10) of the steel sheet pile;
s6, after the earthwork excavation in the foundation pit is finished, the second steel sheet pile (23) is pulled out from the top plate hole (121) to be recovered, and after the second steel sheet pile (23) is pulled out, an inlet and an outlet between the lifting channel (51) and the parking part (301) are formed between the adjacent outer upright columns (21);
s7, after the second steel sheet pile (23) is completely recovered, the top plate hole (121) is cast and closed.
7. The method of constructing an annular underground garage of claim 6, wherein in the step S5, the earthwork in the temporary inner wall (20) is excavated first, and when the earthwork in the temporary inner wall (20) is excavated 4-5 m downward, the excavation of the earthwork between the temporary inner wall (20) and the outer wall (10) of the steel sheet pile is started again.
8. The method of constructing an annular underground garage of claim 7, wherein when the earthwork in the temporary inner wall (20) is excavated to the construction elevation of the parking platform (310) where the earthwork is excavated to the parking level (300), the excavation of the earthwork is suspended, and the cross beam (25) is erected between the inner pillars (22) of the adjacent two sets of the pillars along the elevation of the parking platform (310).
9. The method for constructing an annular underground garage of claim 6, wherein the purlins (60) are made of steel sections, and both ends of the purlins (60) in each sub-foundation pit (521) are welded to the partition walls (30).
10. The method for constructing the annular underground garage of claim 6, wherein the outer upright columns (21) are connected with the adjacent second steel sheet piles (23) through temporary inner wall locking notches (211);
the outer upright post (21) is connected with the third steel sheet pile (32) through a partition wall locking notch (212).
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| CN202011050162.8A CN112196335B (en) | 2020-09-29 | 2020-09-29 | Annular underground garage and construction method thereof |
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| CN112196335B CN112196335B (en) | 2021-08-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| KR102283827B1 (en) * | 2021-03-15 | 2021-07-29 | 박진감 | Modular Structure and Construction Method of Underground Storage with Vertical Hole by Top-Down Precast Segment |
| CN115075291A (en) * | 2021-03-15 | 2022-09-20 | 朴真甘 | Underground warehouse modular structure using prefabricated segment vertical hole and construction method |
| CN115075291B (en) * | 2021-03-15 | 2024-01-26 | 朴真甘 | Underground warehouse modularized structure utilizing prefabricated segment vertical holes and construction method |
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