CN110616933A - Underground parking lot with assembled immersed tube vertical shaft and radiation type jacking tubes and construction method thereof - Google Patents
Underground parking lot with assembled immersed tube vertical shaft and radiation type jacking tubes and construction method thereof Download PDFInfo
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- CN110616933A CN110616933A CN201911011639.9A CN201911011639A CN110616933A CN 110616933 A CN110616933 A CN 110616933A CN 201911011639 A CN201911011639 A CN 201911011639A CN 110616933 A CN110616933 A CN 110616933A
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- 238000010276 construction Methods 0.000 title claims abstract description 54
- 230000005855 radiation Effects 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 91
- 239000010959 steel Substances 0.000 claims abstract description 91
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims description 20
- 239000002689 soil Substances 0.000 claims description 16
- 239000011435 rock Substances 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 14
- 241001270131 Agaricus moelleri Species 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses an assembled immersed tube shaft and radiation type pipe jacking underground parking lot and a construction method thereof, wherein the parking lot comprises a shaft and a lifting mechanism, the wall of the shaft is uniformly provided with an even number of steel columns along the circumferential direction of the shaft, shaft prefabricated pipe joints are arranged between two adjacent steel columns in a layered manner, and a parking space comprises two prefabricated parking pipe galleries; the method comprises the following steps: firstly, determining an effective area between a first building and a second building; secondly, building a sinking pipe vertical shaft; thirdly, reinforcing the first building and the second building; fourthly, building a parking space; and fifthly, building a parking gateway on the ground. The invention determines the position of the vertical shaft in a narrow area between two adjacent buildings on the ground, avoids disturbance to the building auxiliary pipelines and surrounding buildings by building an avoidance section of the vertical shaft, constructs an underground parking lot after expanding the vertical shaft in the underground depth area of the building, adopts the assembled immersed tube vertical shaft and the pipe-jacking type parking space, has simple construction process, no extra enclosing cost and low manufacturing cost.
Description
Technical Field
The invention belongs to the technical field of shaft underground parking lot construction, and particularly relates to an assembled immersed tube shaft and radiation type pipe-jacking underground parking lot and a construction method thereof.
Background
With the rapid development of social economy, the living standard of people is gradually improved, and it is common that families own automobiles and drive to work for trips, so that the quantity of automobile maintenance is greatly increased, the construction of parking spaces is limited, especially in old districts, the buildings in the areas are generally constructed early, the parking spaces are not equipped according to the current specified proportion, the road is congested and unsafe, the entering of external vehicles is inconvenient, the parking contradiction in the areas is particularly prominent, and the inconvenience is brought to the exiting. In order to solve this problem, the mode that many areas adopted to build underground parking stall additional provides more parking stalls for resident and user, but this type of area road is general comparatively narrow, and existing building is intensive, and available open space is few, and all kinds of pipelines and circuit etc. have been laid to many regional ground below, and the underground environment is complicated, if direct excavation is comparatively dangerous, and probably destroys the underground pipeline, causes certain economic loss.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an assembled immersed tube shaft and radiation type pipe-jacking underground parking lot aiming at the defects in the prior art, the design is novel and reasonable, the shaft position is determined in a narrow area between two adjacent buildings on the ground, the disturbance to the building auxiliary pipeline and surrounding buildings is avoided by building an avoiding section of the shaft, the underground parking lot is built after the shaft is expanded in the underground depth area of the building, and the assembled immersed tube shaft and pipe-jacking parking lot are adopted, so that the construction process is simple, no extra enclosure cost is caused, the manufacturing cost is low, and the popularization and the use are convenient.
In order to solve the technical problems, the invention adopts the technical scheme that: assembled immersed tube shaft and radiant push pipe underground parking garage, including build between first building and second building effective area's shaft and with the shaft cooperation be used for supplying the elevating system of construction transportation, the effective area is ground between first building and the second building and corresponds the region that does not have the underground utility line in the stratum, the shaft includes that the shaft dodges the section and dodges the shaft that the section an organic whole communicates with the shaft and expands well section, its characterized in that: the prefabricated section of the shaft well section comprises a shaft well expanding section prefabricated pipe edge, a shaft well expanding section prefabricated reserved ring and a shaft well expanding section prefabricated reserved plate, the position of the parking space passing through the shaft well expanding section prefabricated reserved ring extends into the stratum, and the parking space comprises two prefabricated parking pipe galleries.
Foretell assembled immersed tube shaft and radiation formula push pipe underground parking garage, its characterized in that: the shaft dodges and is provided with a plurality of building reinforcement stocks that all pass the shaft and dodge the section level and stretch into to the stratum and be used for consolidating first building and second building on the lateral wall of section, and the building reinforcement stock is located the shaft and dodges the degree of depth that the section is dodged to the degree of depth is greater than the degree of depth of first building foundation and the degree of depth of second building foundation, and one side that one side and second building foundation that first building foundation is close to the shaft all is provided with a plurality of slope protection piles that are used for consolidating the building.
Foretell assembled immersed tube shaft and radiation formula push pipe underground parking garage, its characterized in that: the lifting mechanism comprises a winch arranged on the ground and a lifting platform matched with the winch through a steel wire rope.
Foretell assembled immersed tube shaft and radiation formula push pipe underground parking garage, its characterized in that: the parking stall is prefabricated hole formula parking stall, every in the non-underground one deck parking stall prefabricated hole formula parking stall all includes the prefabricated first parking pipe gallery of two flat-topped types, every in the underground one deck parking stall prefabricated hole formula parking stall all includes the prefabricated second parking pipe gallery of two arch tops type, and prefabricated first parking pipe gallery and prefabricated second parking pipe gallery all stretch into the stratum into through the lateral wall and the level that the shaft expanded well section was impressed to the double plunger pole hydraulic cylinder, the central point of double plunger pole hydraulic cylinder puts and sets up elevating platform's central point puts.
Foretell assembled immersed tube shaft and radiation formula push pipe underground parking garage, its characterized in that: the prefabricated reserved plate of the shaft well expanding section in the non-underground parking space is a flat-top first prefabricated reserved plate of the shaft well expanding section, the prefabricated reserved plate of the shaft well expanding section in the underground parking space is an arched-top second prefabricated reserved plate of the shaft well expanding section, the prefabricated reserved ring of the shaft well expanding section in the prefabricated reserved plate of the shaft well expanding section in the non-underground parking space is a first prefabricated reserved ring of the shaft well expanding section matched with the first prefabricated reserved plate of the shaft well expanding section, and the prefabricated reserved ring of the shaft well expanding section in the prefabricated reserved ring of the shaft well expanding section is a second prefabricated reserved ring of the shaft well expanding section matched with the second prefabricated reserved plate of the shaft well expanding section.
Foretell assembled immersed tube shaft and radiation formula push pipe underground parking garage, its characterized in that: the vertical end face of the prefabricated pipe piece of the shaft avoidance section is provided with a first prefabricated pipe piece reserved steel plate matched with a steel column, the upper horizontal end face and the lower horizontal end face of the prefabricated pipe piece of the shaft avoidance section are provided with a second prefabricated pipe piece reserved steel plate matched with the prefabricated pipe piece of the adjacent shaft avoidance section, the vertical outside end face of the prefabricated pipe piece edge of the shaft expansion section is provided with a first prefabricated pipe piece edge reserved steel plate matched with the steel column, and the upper horizontal end face and the lower horizontal end face of the prefabricated pipe piece edge of the shaft expansion section are provided with second prefabricated pipe piece edge reserved steel plates matched with the prefabricated pipe piece edge of the adjacent shaft expansion section.
Foretell assembled immersed tube shaft and radiation formula push pipe underground parking garage, its characterized in that: an overground parking access is arranged at the position of the vertical shaft above the ground, and a cutting edge is arranged at the lower part of the prefabricated pipe joint of the vertical shaft at the bottommost part.
Foretell assembled immersed tube shaft and radiation formula push pipe underground parking garage, its characterized in that: two in the parking stall prefabricated parking pipe gallery passes through the pipe gallery connecting piece and connects.
Meanwhile, the invention also discloses a construction method of the assembly type immersed tube vertical shaft and radiation type pipe-jacking underground parking lot, which has simple steps and reasonable design, and is characterized in that: the construction method comprises the following steps:
step one, determining an effective area between a first building and a second building: actually surveying and determining an effective area between the first building and the second building through the construction drawings and the actual survey of the first building and the second building, and marking;
the projection of the effective area on the ground is circular, and the diameter of the circle is not less than 5 m;
step two, building the immersed tube vertical shaft, and the process is as follows:
step 201, aligning the edge feet with the edges of the effective area according to the marking of the effective area, sinking the edge feet into the stratum, and excavating rock soil between the edge feet;
the cutting edge comprises a plurality of prefabricated cutting edge pipe pieces, two adjacent prefabricated cutting edge pipe pieces are connected through steel column sections, and the plurality of prefabricated cutting edge pipe pieces and the plurality of steel column sections form a cylindrical cutting edge of a hollow structure;
202, welding a steel column section extending out of the ground at the top of a steel column section in a blade foot immersed in the stratum in the step 201, arranging a vertical shaft prefabricated pipe section between two adjacent steel column sections extending out of the ground, forming a cylindrical vertical shaft prefabricated pipe section of a hollow structure by a plurality of vertical shaft prefabricated pipe sections and a plurality of corresponding steel column sections, immersing the cylindrical vertical shaft prefabricated pipe section into the stratum, and excavating rock soil between the blade feet;
step 203, welding a steel column section extending out of the ground at the top of a steel column section in the vertical shaft prefabricated pipe section immersed in the stratum, arranging a vertical shaft prefabricated pipe section between two adjacent steel column sections extending out of the ground, forming a new cylindrical vertical shaft prefabricated pipe section of a hollow structure by a plurality of vertical shaft prefabricated pipe sections and a plurality of corresponding steel column sections, immersing the vertical shaft prefabricated pipe section in the stratum, and excavating rock soil between blade feet;
step 204, step 203 is circulated for many times until the depth of the vertical shaft meets the requirement, and then the vertical shaft of the immersed tube is built;
the vertical shaft is divided into a vertical shaft avoiding section and a vertical shaft well expanding section which is arranged on the lower side of the vertical shaft avoiding section and is integrally communicated with the vertical shaft avoiding section, and the depth of the vertical shaft avoiding section is greater than that of the first building foundation and that of the second building foundation;
the prefabricated pipe piece of the shaft avoidance section in the shaft prefabricated pipe section is a whole prefabricated pipe piece, the prefabricated pipe piece of the shaft well expansion section in the shaft prefabricated pipe section is an assembled prefabricated pipe piece with a reserved disassembly joint, a prefabricated pipe piece first reserved steel plate matched with a steel column is arranged on the vertical end face of the prefabricated pipe piece of the shaft avoidance section, a prefabricated pipe piece second reserved steel plate matched with the prefabricated pipe piece of the adjacent shaft avoidance section is arranged on the upper and lower horizontal end faces of the prefabricated pipe piece of the shaft well expansion section, a prefabricated pipe piece edge first reserved steel plate matched with the steel column is arranged on the vertical outer side end face of the prefabricated pipe piece edge of the shaft well expansion section, and a prefabricated pipe piece edge second reserved steel plate matched with the prefabricated pipe piece edge of the adjacent shaft well expansion section is arranged on the upper and lower horizontal end faces of the prefabricated pipe piece edge of the shaft well expansion section;
step three, reinforcing the first building and the second building: a plurality of building reinforcing anchor rods which penetrate through the vertical shaft avoiding section and horizontally extend into the ground are arranged on the side wall of the vertical shaft avoiding section, cement slurry is poured into the building reinforcing anchor rods, the bottoms of the first building and the second building are reinforced, and the depth of the building reinforcing anchor rods in the vertical shaft avoiding section is larger than the depth of the foundation of the first building and the depth of the foundation of the second building; a plurality of slope protection piles for reinforcing the building are arranged on one side of the first building foundation close to the vertical shaft and one side of the second building foundation close to the vertical shaft;
step four, building a parking space, wherein the process is as follows:
step 401, prefabricating hole type parking spaces on the ground, wherein each prefabricated hole type parking space in a non-underground layer parking space comprises two flat-top type prefabricated first parking pipe galleries, each prefabricated hole type parking space in an underground layer parking space comprises two arched type prefabricated second parking pipe galleries, and the parking spaces are built from bottom to top;
402, determining the directions of two parking spaces which are relatively built, detaching two prefabricated reserved plates of the shaft well expansion section and two prefabricated reserved rings of the shaft well expansion section in corresponding directions on the bottommost layer of the shaft well expansion section, and mounting a double-plunger rod hydraulic cylinder on a lifting mechanism, wherein the projection of the central axis of the double-plunger rod hydraulic cylinder on the ground is superposed with the projection of the central axes of the two parking spaces which are relatively built on the ground;
the lifting mechanism comprises a winch arranged on the ground and a lifting platform matched with the winch through a steel wire rope;
step 403, symmetrically placing the two prefabricated parking pipe galleries on the lifting platform and contacting with two ends of the double-plunger rod hydraulic cylinder;
step 404, lowering a lifting platform, which is symmetrically provided with two prefabricated parking pipe galleries, into the vertical shaft through a steel wire rope by using a winch, enabling the two prefabricated parking pipe galleries to be over against the original positions of the prefabricated reserved rings of the shaft expanding section of the two vertical shafts, starting a double-plunger rod hydraulic cylinder to work, pressing the two prefabricated parking pipe galleries into the stratum through the original positions of the prefabricated reserved rings of the shaft expanding section of the vertical shafts, and excavating rock soil in the prefabricated parking pipe galleries;
405, the angle of a double-plunger rod hydraulic cylinder is unchanged, a winch lifts a lifting platform to the ground through a steel wire rope, two prefabricated parking pipe galleries are symmetrically placed on the lifting platform and are in contact with two ends of the double-plunger rod hydraulic cylinder, then the winch lowers the lifting platform which is symmetrically provided with the two prefabricated parking pipe galleries into a vertical shaft through the steel wire rope, the two prefabricated parking pipe galleries are opposite to the original positions of the prefabricated reserved rings of the shaft expanding section, the double-plunger rod hydraulic cylinder is started to work, the two newly-entered prefabricated parking pipe galleries extrude the two prefabricated parking pipe galleries which enter the stratum until the two newly-entered prefabricated parking pipe galleries penetrate through the original positions of the prefabricated reserved rings of the shaft expanding section and are pressed into the stratum, and rock soil in the prefabricated parking pipe galleries is excavated;
step 406, pushing the detached prefabricated reserved plate of the shaft well expansion section to one end, far away from the immersed tube shaft, of the corresponding parking space and welding and fixing the prefabricated reserved plate with the prefabricated parking pipe gallery, buckling the detached prefabricated reserved ring of the shaft well expansion section at the original position of the prefabricated reserved ring, welding and fixing the prefabricated reserved ring with the edge of the corresponding prefabricated pipe sheet of the shaft well expansion section, and completing construction of a pair of parking spaces in the parking space at the bottommost layer;
step 407, re-determining the directions of the two parking spaces to be built, adjusting the angle of a double-plunger rod hydraulic cylinder on a lifting mechanism, enabling the projection of the central axis of the double-plunger rod hydraulic cylinder on the ground to coincide with the projection of the central axes of the two parking spaces to be built to the ground, repeating the steps 403 to 406, and completing the building of the other pair of parking spaces in the lowest parking space;
step 408, repeating step 407 until the parking space in the parking space at the bottommost layer is built;
step 409, regarding the parking space at the upper layer as the parking space at the bottommost layer, and repeating the steps 402 to 408 to complete the construction of the parking space;
step five, building a parking gateway on the ground: an above-ground parking doorway is constructed at a position where the immersed tube shaft is above the ground.
The above method is characterized in that: the prefabricated reserved plate of the shaft well expanding section in the prefabricated reserved plate of the shaft well expanding section is a first prefabricated reserved plate of the shaft well expanding section in a flat top type, the prefabricated reserved plate of the shaft well expanding section in a parking space in an underground layer is a second prefabricated reserved plate of the shaft well expanding section in an arched top type, the prefabricated reserved ring of the shaft well expanding section in the parking space in the underground layer is a first prefabricated reserved ring of the shaft well expanding section matched with the first prefabricated reserved plate of the shaft well expanding section, and the prefabricated reserved ring of the shaft well expanding section in the parking space in the underground layer is a first prefabricated reserved ring of the shaft well expanding section matched with the second prefabricated reserved plate of the shaft well expanding section.
Compared with the prior art, the invention has the following advantages:
1. according to the parking lot, the vertical shaft is arranged in the effective area between the first building and the second building, wherein the effective area is the area between the first building and the second building and the area without underground pipelines in the corresponding stratum, the vertical shaft is composed of the vertical shaft avoiding section and the vertical shaft well expanding section, the vertical shaft avoiding section effectively avoids the ground and the area with the underground pipelines in the corresponding stratum, the buildings and the underground pipelines attached to the buildings are not disturbed, the first building and the second building are reinforced, the influence on surrounding buildings due to the construction of the underground parking lot is avoided, the unnecessary loss caused by the migration of the underground pipelines is avoided, the construction occupied area is small, large construction machinery is not needed in construction, the construction period is short, the arrangement is flexible, the applicability is strong, and the popularization and the use are facilitated.
2. According to the parking lot, the vertical shaft is formed by surrounding the steel columns and the prefabricated vertical shaft prefabricated pipe sections, the vertical shaft is obtained by adopting the fabricated immersed tube, the construction strength is met, meanwhile, the construction process is simplified, the parking space is pressed into the stratum in a pipe jacking mode through the two prefabricated parking pipe galleries, the construction process is mature, extra enclosure cost is avoided, and the construction cost is low.
3. The parking lot adopted by the invention is used for building the parking space on the shaft expansion section of the underground depth area of the building, the stratum outside the parking space is not excavated, the excavation of the building earthwork is reduced, the underground space is effectively utilized, unnecessary construction is avoided, and the construction occupied area is small.
4. The construction method adopted by the invention has simple steps, determines the effective area between the first building and the second building through the construction drawing and the actual investigation of the first building and the second building, provides a reliable construction foundation for the subsequent construction, the sinking pipe shaft sinks under the guidance of the blade foot, and constructs the sinking pipe shaft through the sinking shaft prefabricated pipe sections layer by layer, the shaft prefabricated pipe section positioned in the shaft well expanding section comprises a shaft well expanding section prefabricated pipe flange, a shaft well expanding section prefabricated reservation ring preset in the shaft well expanding section prefabricated pipe flange and a shaft well expanding section prefabricated reservation plate preset in the shaft well expanding section prefabricated reservation ring, the shaft well expanding section prefabricated reservation ring limits the section structure of the prefabricated parking pipe gallery, two prefabricated parking pipe galleries in the parking space are pressed into the stratum, the shaft well expanding section prefabricated reservation plate is pushed to the end which is far away from the sinking pipe shaft corresponding to the parking space and is welded and fixed with the prefabricated parking pipe gallery, and then, the prefabricated reserved ring of the detached shaft well expansion section is buckled at the original position of the prefabricated reserved ring and is welded and fixed with the edge of the prefabricated pipe sheet of the corresponding shaft well expansion section, so that the material waste is avoided in the construction process of the parking space, and the prefabricated reserved ring is convenient to popularize and use.
In conclusion, the invention has novel and reasonable design, the position of the vertical shaft is determined in a narrow area between two adjacent buildings on the ground, the disturbance to the building auxiliary pipelines and surrounding buildings is avoided by building the avoidance section of one section of the vertical shaft, and the underground parking lot is built after the vertical shaft is expanded in the underground depth area of the building, so that the construction floor area is small, and the invention is reliable and stable and is convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic structural view of a parking lot according to the present invention.
Fig. 2 is a schematic structural diagram of a parking lot in a shaft well-expanding section of the invention.
Fig. 3 is a schematic structural diagram of a prefabricated pipe piece of a shaft avoiding section.
Fig. 4 is a schematic structural diagram of the prefabricated pipe piece of the shaft well expansion section in the underground parking space.
Fig. 5 is a schematic structural diagram of a prefabricated pipe piece of a shaft well expansion section in a non-underground parking space.
Fig. 6 is a schematic diagram of the fitting relationship between the prefabricated first parking pipe gallery and the prefabricated second parking pipe gallery in the same orientation according to the present invention.
Fig. 7 is a schematic view of the construction state of the blade foot of the present invention.
Fig. 8 is a schematic view of the construction state of the prefabricated pipe joint for the vertical shaft of the invention.
Fig. 9 is a schematic structural diagram of a shaft well-expanding segment of the invention.
Fig. 10 is a schematic structural diagram of a shaft avoiding section of the invention.
FIG. 11 is a flow chart of the construction method of the present invention.
Description of reference numerals:
1, the ground; 2-formation; 3-a first building;
4-a second building; 5-parking on the ground and entering and exiting;
6, prefabricating a reserved plate at the shaft expansion section; 6-1, prefabricating a second reserved plate at the shaft expansion section of the vertical shaft;
6-2, prefabricating a first reserved plate at the shaft expansion section of the vertical shaft; 7, prefabricating a reserved ring at the shaft expansion section;
7-1, forming a second prefabricated reserved ring at the shaft expansion section of the vertical shaft; 7-2, a first prefabricated reserved ring of a vertical shaft well expansion section;
8-a first underground utility; 9-a second underground pipeline;
10, prefabricating a duct piece at a shaft avoiding section; 11-1-a shaft avoidance section;
11-2-a shaft well expansion section; 12-a building reinforcement anchor;
13-cutting edge; 14-parking space; 15-prefabricating a parking pipe gallery;
15-1-prefabricating a second parking pipe gallery; 15-2-prefabricating a first parking pipe gallery;
16-pipe gallery connecting pieces; 17-prefabricating a pipe joint in a vertical shaft; 18-steel column;
19, prefabricating a pipe sheet edge at a shaft expansion section; 20, prefabricating a first reserved steel plate of the segment;
21-prefabricating a second reserved steel plate of the segment; 22, prefabricating a first reserved steel plate at the edge of the pipe sheet;
and 23, prefabricating a second reserved steel plate at the edge of the pipe sheet.
Detailed Description
As shown in fig. 1 to 5, the assembled immersed tube shaft and radiation type pipe-jacking underground parking lot, according to the present invention, comprises a shaft constructed in an effective area between a first building 3 and a second building 4, and a lifting mechanism matched with the shaft for construction and transportation, wherein the effective area is an area without underground pipelines in the ground 1 between the first building 3 and the second building 4 and the corresponding stratum 2, the shaft 11 comprises a shaft avoiding section 11-1 and a shaft well expanding section 11-2 integrally communicated with the shaft avoiding section 11-1, the wall of the shaft is uniformly provided with an even number of steel columns 18 along the circumferential direction thereof, a prefabricated pipe section 17 is arranged between two adjacent steel columns 18 in a layered manner, the pipe section of the shaft avoiding section 11-1 of the prefabricated pipe section 17 is a shaft avoiding section prefabricated pipe segment 10, the pipe section of the shaft prefabricated pipe section 17 located in the shaft well expanding section 11-2 is a shaft well expanding section prefabricated pipe section, the shaft well expanding section prefabricated pipe section comprises a shaft well expanding section prefabricated pipe section edge 19, a shaft well expanding section prefabricated reserved ring 7 preset in the shaft well expanding section prefabricated pipe section edge 19 and a shaft well expanding section prefabricated reserved plate 6 preset in the shaft well expanding section prefabricated reserved ring 7, a parking space 14 penetrates through the position of the shaft well expanding section prefabricated reserved ring 7 and extends into the stratum 2, and the parking space 14 comprises two prefabricated parking pipe galleries 15.
It should be noted that, a shaft 11 is arranged in an effective area between a first building 3 and a second building 4, wherein the effective area is an area without underground pipelines in the ground 1 and the corresponding stratum 2 between the first building 3 and the second building 4, the shaft is composed of a shaft avoiding section 11-1 and a shaft well expanding section 11-2, the shaft avoiding section 11-1 effectively avoids the ground 1 and the area with the underground pipelines in the corresponding stratum 2, the buildings and the underground pipelines attached to the buildings are not disturbed, and the first building 3 and the second building 4 are reinforced, so that the influence on the surrounding buildings due to the construction of underground parking lots is avoided, and unnecessary loss caused by the migration of the underground pipelines is avoided; the method comprises the following steps of building a parking space 14 for a vertical shaft well expansion section 11-2 in an underground depth area of a building, and not excavating a stratum 2 outside the parking space 14, so that excavation of building earthwork is reduced, underground space is effectively utilized, unnecessary construction is avoided, and construction occupied area is small; in practice, the underground utility includes a first underground utility 8 attached to the first building 3 and a second underground utility 9 attached to the second building 4.
During actual construction, the vertical shaft is formed by surrounding a steel column and prefabricated vertical shaft prefabricated pipe joints, the vertical shaft is obtained by adopting the fabricated immersed tube, the construction process is simplified when the construction strength is met, the parking space is pressed into the stratum through two prefabricated parking pipe galleries in a pipe jacking mode, the construction process is mature, extra enclosure cost is avoided, and the construction cost is low.
In this embodiment, a plurality of building reinforcing anchor rods 12 which penetrate through the shaft avoiding section 11-1 and horizontally extend into the ground 2 and are used for reinforcing the first building 3 and the second building 4 are arranged on the side wall of the shaft avoiding section 11-1, the depth of the building reinforcing anchor rods 12 in the shaft avoiding section 11-1 is greater than the depth of the first building foundation and the depth of the second building foundation, and a plurality of slope protection piles used for reinforcing the buildings are arranged on one side of the first building foundation close to the shaft and one side of the second building foundation close to the shaft.
In this embodiment, the lifting mechanism includes a winch disposed on the ground 1 and a lifting platform engaged with the winch via a wire rope.
In this embodiment, parking stall 14 is prefabricated hole formula parking stall, every in the non-underground one deck parking stall prefabricated hole formula parking stall all includes the prefabricated first parking pipe gallery 15-2 of two flat-topped types, every in the one deck parking stall prefabricated hole formula parking stall all includes the prefabricated second parking pipe gallery 15-1 of two arched top types, prefabricated first parking pipe gallery 15-2 and prefabricated second parking pipe gallery 15-1 all stretch into stratum 2 through the lateral wall and the level that two plunger rod hydraulic cylinders pressed in shaft well expansion section 11-2, the central point of two plunger rod hydraulic cylinders puts and sets up elevating platform's central point puts.
In the embodiment, the prefabricated reserved plate 6 of the shaft expanded well section in the parking space on the non-underground layer in the prefabricated reserved plates 6 of the shaft expanded well section is a first prefabricated reserved plate 6-2 of the shaft expanded well section in a flat top type, the shaft well-expanding section prefabricated reserved plate 6 positioned in a parking space on the underground layer in the shaft well-expanding section prefabricated reserved plates 6 is an arched second prefabricated reserved plate 6-1 of the shaft well-expanding section, the shaft well expansion section prefabricated preformed ring 7 positioned in a parking space on a non-underground layer in the shaft well expansion section prefabricated preformed ring 7 is a shaft well expansion section first prefabricated preformed ring 7-2 matched with the shaft well expansion section first prefabricated preformed plate 6-2, the shaft well expansion section prefabricated preformed ring 7 positioned in the parking space on the underground layer in the shaft well expansion section prefabricated preformed ring 7 is a shaft well expansion section second prefabricated preformed ring 7-1 matched with the shaft well expansion section second prefabricated preformed plate 6-1.
In this embodiment, a first preformed sheet 20 of a prefabricated duct piece matched with a steel column 18 is arranged on the vertical end face of the prefabricated duct piece 10 at the shaft avoidance section, a second preformed sheet 21 of a prefabricated duct piece matched with an adjacent shaft avoidance section is arranged on the upper and lower horizontal end faces of the prefabricated duct piece 10 at the shaft avoidance section, a first preformed sheet 22 of a prefabricated duct piece edge matched with the steel column 18 is arranged on the vertical outer end face of the prefabricated duct piece edge 19 at the shaft expansion section, and a second preformed sheet 23 of a prefabricated duct piece edge matched with the prefabricated duct piece edge 19 at the adjacent shaft expansion section is arranged on the upper and lower horizontal end faces of the prefabricated duct piece edge 19 at the shaft expansion section.
In the embodiment, an overground parking access 5 is arranged at the position of the shaft above the ground 1, the lower part of the bottommost shaft prefabricated pipe section 17 is provided with a cutting edge 13, the sinking pipe shaft is guided to sink by the cutting edge 13, and the sinking pipe shaft is built through sinking shaft prefabricated pipe sections layer by layer.
In this embodiment, two of the parking spaces 14 are connected by a pipe gallery connector 16 to the prefabricated parking pipe gallery 15.
It should be noted that, piping lane connecting piece 16 is including predetermineeing the reservation steel sheet on prefabricated parking pipe gallery 15, two in parking stall 14 prefabricated parking pipe gallery 15 is fixed as an organic whole through reserving the steel sheet welding.
As shown in fig. 6 to 11, the construction method of the assembly type immersed tube shaft and radiation type pipe-jacking underground parking lot comprises the following steps:
step one, determining an effective area between a first building and a second building: actually surveying and determining an effective area between the first building 3 and the second building 4 through the construction drawings and the actual surveying of the first building 3 and the second building 4, and marking;
the projection of the effective area on the ground 1 is a circle, and the diameter of the circle is not less than 5 m;
step two, building the immersed tube vertical shaft, and the process is as follows:
step 201, aligning the edge legs 13 with the edges of the effective area according to the scribing of the effective area, sinking the edge legs into the stratum 2, and excavating rock soil between the edge legs 13;
the cutting edge 13 comprises a plurality of prefabricated cutting edge pipe pieces, two adjacent prefabricated cutting edge pipe pieces are connected through steel column sections, and the plurality of prefabricated cutting edge pipe pieces and the plurality of steel column sections form a cylindrical cutting edge 13 with a hollow structure;
202, welding a steel column section extending out of the ground 1 at the top of a steel column section in the blade legs 13 sinking into the ground 2 in the step 201, arranging a vertical shaft prefabricated pipe section 17 between two adjacent steel column sections extending out of the ground 1, forming a cylindrical vertical shaft prefabricated pipe section with a hollow structure by the vertical shaft prefabricated pipe sections 17 and the corresponding steel column sections, sinking into the ground 2, and excavating rock soil between the blade legs 13;
step 203, welding a steel column section extending out of the ground 1 at the top of a steel column section in a vertical shaft prefabricated pipe section immersed in the stratum 2, arranging a vertical shaft prefabricated pipe section 17 between two adjacent steel column sections extending out of the ground 1, forming a new cylindrical vertical shaft prefabricated pipe section of a hollow structure by a plurality of vertical shaft prefabricated pipe sections 17 and a plurality of corresponding steel column sections, immersing in the stratum 2, and excavating rock soil between blade feet 13;
step 204, step 203 is circulated for many times until the depth of the vertical shaft meets the requirement, and then the vertical shaft of the immersed tube is built;
the vertical shaft is divided into a vertical shaft avoiding section 11-1 and a vertical shaft well expanding section 11-2 which is arranged at the lower side of the vertical shaft avoiding section 11-1 and is integrally communicated with the vertical shaft avoiding section 11-1, and the depth of the vertical shaft avoiding section 11-1 is greater than that of the first building foundation and that of the second building foundation;
a shaft avoidance section prefabricated pipe piece 10 in a shaft prefabricated pipe section 17 is an integral prefabricated pipe piece, a shaft expanded well section prefabricated pipe piece in the shaft prefabricated pipe section 17 is an assembled prefabricated pipe piece with a reserved disassembly joint, a prefabricated pipe piece first reserved steel plate 20 matched with a steel column 18 is arranged on the vertical end surface of the shaft avoidance section prefabricated pipe piece 10, a prefabricated pipe piece second reserved steel plate 21 matched with an adjacent shaft avoidance section prefabricated pipe piece 10 is arranged on the upper and lower horizontal end surfaces of the shaft avoidance section prefabricated pipe piece 10, a prefabricated pipe piece edge first reserved steel plate 22 matched with the steel column 18 is arranged on the vertical outer end surface of a shaft expanded well section prefabricated pipe piece edge 19, and a prefabricated pipe piece edge second reserved steel plate 23 matched with the adjacent expanded well section prefabricated pipe piece edge 19 is arranged on the upper and lower horizontal end surfaces of the shaft expanded well section prefabricated pipe piece edge 19;
step three, reinforcing the first building and the second building: a plurality of building reinforcing anchor rods 12 which penetrate through the vertical shaft avoiding section 11-1 and horizontally extend into the ground 2 are arranged on the side wall of the vertical shaft avoiding section 11-1, cement slurry is poured into the building reinforcing anchor rods 12, so that the bottoms of the first building 3 and the second building 4 are reinforced, and the depth of the building reinforcing anchor rods 12 in the vertical shaft avoiding section 11-1 is greater than the depth of the foundation of the first building and the depth of the foundation of the second building; a plurality of slope protection piles for reinforcing the building are arranged on one side of the first building foundation close to the vertical shaft and one side of the second building foundation close to the vertical shaft;
step four, building a parking space, wherein the process is as follows:
step 401, prefabricating hole type parking spaces on the ground 1, wherein each prefabricated hole type parking space in a non-underground layer parking space comprises two flat-top type prefabricated first parking pipe corridors 15-2, each prefabricated hole type parking space in an underground layer parking space comprises two arched top type prefabricated second parking pipe corridors 15-1, and the parking spaces 14 are constructed from bottom to top;
step 402, determining the positions of two parking spaces 14 which are relatively built, detaching two prefabricated reserved plates 6 of the shaft expansion section and two prefabricated reserved rings 7 of the shaft expansion section in corresponding positions on the bottommost layer of the shaft expansion section 11-2, and installing a double-plunger rod hydraulic cylinder on a lifting mechanism, wherein the projection of the central axis of the double-plunger rod hydraulic cylinder on the ground 1 is superposed with the projection of the central axis of the two parking spaces 14 which are relatively built on the ground 1;
the lifting mechanism comprises a winch arranged on the ground 1 and a lifting platform matched with the winch through a steel wire rope;
step 403, symmetrically placing the two prefabricated parking pipe galleries on the lifting platform and contacting with two ends of the double-plunger rod hydraulic cylinder;
step 404, lowering a lifting platform which is symmetrically provided with two prefabricated parking pipe galleries into a vertical shaft through a steel wire rope by using a winch, enabling the two prefabricated parking pipe galleries to be over against the original positions of the prefabricated reserved rings 7 of the shaft expanding section, starting a double-plunger rod hydraulic cylinder to work, pressing the two prefabricated parking pipe galleries into the stratum 2 through the original positions of the prefabricated reserved rings 7 of the shaft expanding section, and excavating rock soil in the prefabricated parking pipe galleries;
405, the angle of the double-plunger rod hydraulic cylinder is unchanged, the winch lifts the lifting platform to the ground through a steel wire rope, then the two prefabricated parking pipe galleries are symmetrically placed on the lifting platform and are in contact with the two ends of the double-plunger rod hydraulic cylinder, then the winch lowers the lifting platform which is symmetrically provided with the two prefabricated parking pipe galleries into the vertical shaft through the steel wire rope, the two prefabricated parking pipe galleries are opposite to the original positions of the prefabricated reserved rings 7 of the shaft well expansion section, the double-plunger rod hydraulic cylinder is started to work, the two newly-entered prefabricated parking pipe galleries extrude the two prefabricated parking pipe galleries which enter the stratum 2 until the two newly-entered prefabricated parking pipe galleries penetrate through the original positions of the prefabricated reserved rings 7 of the shaft well expansion section and are pressed into the stratum 2, and rock and soil in the prefabricated parking pipe galleries is excavated;
step 406, pushing the detached prefabricated reserved plate 6 of the shaft well expansion section to one end, away from the immersed tube shaft, of the corresponding parking space 14 and welding and fixing the prefabricated reserved plate with the prefabricated parking pipe gallery 15, buckling the detached prefabricated reserved ring 7 of the shaft well expansion section at the original position of the prefabricated reserved ring, and welding and fixing the prefabricated reserved ring with the edge 19 of the corresponding prefabricated pipe sheet of the shaft well expansion section to complete the construction of a pair of parking spaces 18 in the parking space at the bottommost layer;
step 407, re-determining the orientations of the two parking spaces 18 which are relatively built, adjusting the angles of the double-plunger rod hydraulic cylinders on the lifting mechanism, enabling the projections of the central axes of the double-plunger rod hydraulic cylinders on the ground 1 to coincide with the projections of the central axes of the two parking spaces 14 which are relatively and to be built on the ground 1, and repeating the steps 403 to 406 to complete the building of the other pair of parking spaces 14 in the lowest parking space;
step 408, repeating step 407 until the parking space 14 in the lowest layer parking space is built;
step 409, regarding the parking space at the upper layer as the parking space at the bottommost layer, and repeating the steps 402 to 408 to complete the construction of the parking space;
step five, building a parking gateway on the ground: an above-ground parking gate 5 is built at a position where the sinking shaft is above the ground 1.
The method is simple in steps, an effective area between a first building and a second building is determined through building drawings and actual exploration of the first building and the second building, a reliable construction foundation is provided for subsequent construction, the immersed tube shaft sinks under the guidance of blade feet, the immersed tube shaft is built through layer-by-layer sunken shaft prefabricated tube sections, a shaft prefabricated tube section 17 in a shaft expanded section 11-2 comprises a shaft expanded section prefabricated tube flange 19, a shaft expanded section prefabricated reserved ring 7 preset in the shaft expanded section prefabricated tube flange 19 and a shaft expanded section prefabricated reserved plate 6 preset in the shaft expanded section prefabricated reserved ring 7, the shaft expanded section prefabricated reserved ring 7 defines the cross-sectional structure of a prefabricated parking tube corridor 15, two prefabricated parking tube corridors 15 in the parking space 14 are pressed into a stratum 2, the shaft expanded section prefabricated reserved plate 6 is pushed to one end, far away from the immersed tube shaft, of the corresponding parking space 14 and is welded with the prefabricated parking tube corridors 15 Fixing, namely buckling the detached prefabricated reserved ring 7 of the shaft expansion section at the original position, and welding and fixing the prefabricated reserved ring with the corresponding prefabricated pipe sheet edge 19 of the shaft expansion section, wherein the material waste is not caused in the construction process of the parking space 18; this implementation adopts prefabricated hole formula parking stall of having prefabricated in advance, and during the mode that adopts the scene to bulldoze was impressed prefabricated hole formula parking stall stratum 2, save the time limit for a project, also constructor digs the soil body in prefabricated hole formula parking stall, and the security is high, reliable stable.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. Assembled immersed tube shaft and radiation formula push pipe underground parking garage, including build effective area's shaft between first building (3) and second building (4) and with the shaft cooperation be used for the elevating system who supplies the construction transportation, effective area is ground (1) and correspond the region that does not have the underground line in stratum (2) between first building (3) and second building (4), shaft (11) dodge section (11-1) and with shaft dodge section (11-1) integrative shaft of intercommunication expand well section (11-2), its characterized in that: the wall of the shaft is uniformly provided with an even number of steel columns (18) along the circumferential direction, a shaft prefabricated pipe section (17) is arranged between two adjacent steel columns (18) in a layered mode, the pipe section of the shaft prefabricated pipe section (17) positioned at the shaft avoiding section (11-1) is a shaft avoiding section prefabricated pipe piece (10), the pipe section of the shaft prefabricated pipe section (17) positioned at the shaft well expanding section (11-2) is a shaft well expanding section prefabricated pipe piece, the prefabricated section of jurisdiction of well section is expanded to the shaft includes that the well section is expanded to the shaft prefabricated section of jurisdiction reason (19), predetermines the prefabricated reservation ring of well section (7) of well section is expanded to the shaft in well section prefabricated section reason (19) and predetermines the well section is expanded to the shaft in the well section prefabricated reservation ring of well section (7) and preset well section prefabricated reservation board (6), parking stall (14) pass the well section and expand the prefabricated reservation ring of well section (7) position and stretch into to stratum (2), parking stall (14) include two prefabricated parking pipe galleries (15).
2. The fabricated immersed tube shaft and radiant top tube underground parking lot according to claim 1, characterized in that: be provided with a plurality of building reinforcement stock (12) that all pass in shaft dodge section (11-1) level and stretch into stratum (2) and be used for consolidating first building (3) and second building (4) on the lateral wall of shaft dodge section (11-1), the degree of depth that building reinforcement stock (12) are located shaft dodge section (11-1) is greater than the degree of depth of first building foundation and the degree of depth of second building foundation, one side that first building foundation is close to the shaft and one side that second building foundation is close to the shaft all are provided with a plurality of slope protection piles that are used for building reinforcement.
3. The fabricated immersed tube shaft and radiant top tube underground parking lot according to claim 1, characterized in that: the lifting mechanism comprises a winch arranged on the ground (1) and a lifting platform matched with the winch through a steel wire rope.
4. The fabricated immersed tube shaft and radiant top tube underground parking lot according to claim 3, characterized in that: parking stall (14) are prefabricated hole formula parking stall, every in the non-underground one deck parking stall prefabricated hole formula parking stall all includes prefabricated first parking pipe gallery (15-2) of two flat-topped types, every in the one deck parking stall prefabricated hole formula parking stall all includes prefabricated second parking pipe gallery (15-1) of two arched top types, and prefabricated first parking pipe gallery (15-2) and prefabricated second parking pipe gallery (15-1) are all pressed in lateral wall and level of shaft expansion section (11-2) through two plunger rod hydraulic cylinders and are stretched into to stratum (2), the central point of two plunger rod hydraulic cylinders puts and sets up elevating platform's central point puts.
5. The fabricated immersed tube shaft and radiant top tube underground parking lot according to claim 4, characterized in that: the prefabricated reserved plate (6) of the shaft well expanding section in the non-underground parking space in the prefabricated reserved plate (6) of the shaft well expanding section is a flat-top first prefabricated reserved plate (6-2) of the shaft well expanding section, the prefabricated reserved plate (6) of the shaft well expanding section in the underground parking space in the prefabricated reserved plate (6) of the shaft well expanding section is an arched second prefabricated reserved plate (6-1) of the shaft well expanding section, the prefabricated reserved ring (7) of the shaft well expanding section in the non-underground parking space in the prefabricated reserved ring (7) of the shaft well expanding section is a first prefabricated reserved ring (7-2) of the shaft well expanding section matched with the first prefabricated reserved plate (6-2) of the shaft well expanding section, and the prefabricated ring (7) of the shaft well expanding section in the underground parking space in the prefabricated reserved ring (7) of the shaft well expanding section is a second prefabricated reserved ring (7) of the shaft well expanding section matched with the second prefabricated plate (6-1) of the shaft well expanding section A reservation ring (7-1).
6. The fabricated immersed tube shaft and radiant top tube underground parking lot according to claim 1, characterized in that: the prefabricated section of jurisdiction of section (10) is dodged to the shaft is provided with on the vertical terminal surface of the prefabricated section of jurisdiction of section (10) and first preformed steel sheet (20) of prefabricated section of jurisdiction of steel column (18) complex, be provided with on the upper and lower horizontal terminal surface of the prefabricated section of jurisdiction of section (10) of dodging with adjacent shaft on the shaft and reserve steel sheet (21) with the prefabricated section of jurisdiction of section (10) complex of adjacent shaft, be provided with on the vertical outside terminal surface of the prefabricated section of jurisdiction edge (19) of section of shaft that expands and reserve steel sheet (22) with steel column (18) complex prefabricated section of jurisdiction edge first, be provided with on the upper and lower horizontal terminal surface of the prefabricated section of jurisdiction edge (19) of section of shaft that expands and reserve steel sheet (23) with the prefabricated section of jurisdiction edge (19).
7. The fabricated immersed tube shaft and radiant top tube underground parking lot according to claim 1, characterized in that: an overground parking access (5) is arranged at the position of the vertical shaft above the ground (1), and a cutting edge (13) is arranged at the lower part of the prefabricated pipe joint (17) of the vertical shaft at the bottommost part.
8. The fabricated immersed tube shaft and radiant top tube underground parking lot according to claim 1, characterized in that: two of parking stall (14) prefabricated parking pipe gallery (15) are connected through pipe gallery connecting piece (16).
9. The method for constructing the fabricated immersed tube shaft and radiation type pipe-jacking underground parking lot according to claim 1, which is characterized in that: the method comprises the following steps:
step one, determining an effective area between a first building and a second building: actually surveying and determining an effective area between the first building (3) and the second building (4) through the construction drawings and the actual surveying of the first building (3) and the second building (4), and marking;
the projection of the effective area on the ground (1) is a circle, and the diameter of the circle is not less than 5 m;
step two, building the immersed tube vertical shaft, and the process is as follows:
step 201, aligning the edge legs (13) with the edges of the effective area and sinking into the stratum (2) according to the marking of the effective area, and excavating rock soil between the edge legs (13);
the cutting edge (13) comprises a plurality of prefabricated cutting edge pipe pieces, two adjacent prefabricated cutting edge pipe pieces are connected through steel column sections, and the plurality of prefabricated cutting edge pipe pieces and the plurality of steel column sections form a cylindrical cutting edge (13) of a hollow structure;
202, welding a steel column section extending out of the ground (1) at the top of a steel column section in a blade foot (13) immersed in the ground (2) in the step 201, arranging a vertical shaft prefabricated pipe section (17) between two adjacent steel column sections extending out of the ground (1), forming a cylindrical vertical shaft prefabricated pipe section of a hollow structure by the vertical shaft prefabricated pipe sections (17) and the corresponding steel column sections, immersing the cylindrical vertical shaft prefabricated pipe section into the ground (2), and excavating rock soil between the blade feet (13);
step 203, welding a steel column section extending out of the ground (1) at the top of a steel column section in the vertical shaft prefabricated pipe section immersed in the stratum (2), arranging vertical shaft prefabricated pipe sections (17) between two adjacent steel column sections extending out of the ground (1), forming a new cylindrical vertical shaft prefabricated pipe section with a hollow structure by the vertical shaft prefabricated pipe sections (17) and the corresponding steel column sections, immersing the vertical shaft prefabricated pipe section in the stratum (2), and excavating rock soil between blade feet (13);
step 204, step 203 is circulated for many times until the depth of the vertical shaft meets the requirement, and then the vertical shaft of the immersed tube is built;
the vertical shaft is divided into a vertical shaft avoiding section (11-1) and a vertical shaft well expanding section (11-2) which is arranged on the lower side of the vertical shaft avoiding section (11-1) and integrally communicated with the vertical shaft avoiding section (11-1), and the depth of the vertical shaft avoiding section (11-1) is greater than that of the first building foundation and that of the second building foundation;
the prefabricated pipe piece (10) of the shaft avoiding section in the shaft prefabricated pipe section (17) is a whole prefabricated pipe piece, the prefabricated pipe piece of the shaft expanding section in the shaft prefabricated pipe section (17) is an assembled prefabricated pipe piece with a reserved disassembly joint, a prefabricated segment first reserved steel plate (20) matched with the steel column (18) is arranged on the vertical end face of the prefabricated segment (10) at the shaft avoiding section, a prefabricated segment second reserved steel plate (21) matched with the prefabricated segment (10) at the adjacent shaft avoiding section is arranged on the upper and lower horizontal end faces of the prefabricated segment (10) at the shaft avoiding section, a first preformed steel plate (22) of the prefabricated pipe sheet edge matched with the steel column (18) is arranged on the end surface of the vertical outer side of the prefabricated pipe sheet edge (19) of the vertical shaft well-expanding section, the upper horizontal end face and the lower horizontal end face of the prefabricated pipe sheet edge (19) of the shaft well expansion section are provided with a prefabricated pipe sheet edge second reserved steel plate (23) matched with the prefabricated pipe sheet edge (19) of the adjacent shaft well expansion section;
step three, reinforcing the first building and the second building: a plurality of building reinforcing anchor rods (12) which penetrate through the vertical shaft avoiding section (11-1) and horizontally extend into the ground (2) are arranged on the side wall of the vertical shaft avoiding section (11-1), cement slurry is poured into the building reinforcing anchor rods (12), the bottoms of the first building (3) and the second building (4) are reinforced, and the depth of the building reinforcing anchor rods (12) in the vertical shaft avoiding section (11-1) is greater than the depth of the first building foundation and the depth of the second building foundation; a plurality of slope protection piles for reinforcing the building are arranged on one side of the first building foundation close to the vertical shaft and one side of the second building foundation close to the vertical shaft;
step four, building a parking space, wherein the process is as follows:
step 401, prefabricating hole type parking spaces on the ground (1), wherein each prefabricated hole type parking space in a non-underground layer parking space comprises two flat-top type prefabricated first parking pipe galleries (15-2), each prefabricated hole type parking space in an underground layer parking space comprises two arched type prefabricated second parking pipe galleries (15-1), and the parking spaces (14) are built from bottom to top;
402, determining the positions of two parking spaces (14) which are relatively built, disassembling two shaft well expansion section prefabricated reserved plates (6) and two shaft well expansion section prefabricated reserved rings (7) which correspond to the positions on the bottommost layer of a shaft well expansion section (11-2), and installing double-plunger rod hydraulic cylinders on a lifting mechanism, wherein the projections of the central axes of the double-plunger rod hydraulic cylinders on the ground (1) are superposed with the projections of the central axes of the two parking spaces (14) which are relatively built on the ground (1);
the lifting mechanism comprises a winch arranged on the ground (1) and a lifting platform matched with the winch through a steel wire rope;
step 403, symmetrically placing the two prefabricated parking pipe galleries on the lifting platform and contacting with two ends of the double-plunger rod hydraulic cylinder;
step 404, lowering a lifting platform symmetrically provided with two prefabricated parking pipe galleries into a vertical shaft through a steel wire rope by using a winch, enabling the two prefabricated parking pipe galleries to be over against the original positions of the prefabricated reserved rings (7) of the shaft expanding section of the two vertical shafts, starting a double-plunger rod hydraulic cylinder to work, pressing the two prefabricated parking pipe galleries into the stratum (2) through the original positions of the prefabricated reserved rings (7) of the shaft expanding section of the two vertical shafts, and excavating rock soil in the prefabricated parking pipe galleries;
405, the angle of a double-plunger rod hydraulic cylinder is unchanged, a winch lifts a lifting platform to the ground through a steel wire rope, two prefabricated parking pipe galleries are symmetrically placed on the lifting platform and are in contact with two ends of the double-plunger rod hydraulic cylinder, then the winch lowers the lifting platform which is symmetrically provided with the two prefabricated parking pipe galleries into a vertical shaft through the steel wire rope, the two prefabricated parking pipe galleries are opposite to the original positions of the prefabricated reserved rings (7) of the shaft well expansion section, the double-plunger rod hydraulic cylinder is started to work, the two newly-advanced prefabricated parking pipe galleries extrude the two prefabricated parking pipe galleries which enter the stratum (2) until the two newly-advanced prefabricated parking pipe galleries penetrate through the original positions of the prefabricated reserved rings (7) of the shaft well expansion section and are pressed into the stratum (2), and rock soil in the prefabricated parking pipe galleries is excavated;
step 406, pushing the detached prefabricated reserved plate (6) of the shaft expansion section to one end, away from the immersed tube shaft, of the corresponding parking space (14) and welding and fixing the prefabricated reserved plate with the prefabricated parking tube gallery (15), buckling the detached prefabricated reserved ring (7) of the shaft expansion section at the original position of the prefabricated reserved ring, welding and fixing the detached prefabricated reserved ring with the edge (19) of the prefabricated tube sheet of the corresponding shaft expansion section, and completing the construction of a pair of parking spaces (18) in the parking space at the bottommost layer;
step 407, re-determining the positions of the two parking spaces (18) which are relatively built, adjusting the angle of a double-plunger rod hydraulic cylinder on a lifting mechanism, enabling the projection of the central axis of the double-plunger rod hydraulic cylinder on the ground (1) to coincide with the projection of the central axes of the two parking spaces (14) which are relatively and to be built on the ground (1), and repeating the steps 403 to 406 to complete the building of the other pair of parking spaces (14) in the lowest parking space;
step 408, repeating step 407 until the parking space (14) in the lowest layer parking space is built;
step 409, regarding the parking space at the upper layer as the parking space at the bottommost layer, and repeating the steps 402 to 408 to complete the construction of the parking space;
step five, building a parking gateway on the ground: an above-ground parking gate (5) is constructed at a position of the immersed tube shaft above the ground (1).
10. The method of claim 9, wherein: the prefabricated reserved plate (6) of the shaft well expanding section in the non-underground parking space in the prefabricated reserved plate (6) of the shaft well expanding section is a flat-top first prefabricated reserved plate (6-2) of the shaft well expanding section, the prefabricated reserved plate (6) of the shaft well expanding section in the underground parking space in the prefabricated reserved plate (6) of the shaft well expanding section is an arched-top second prefabricated reserved plate (6-1) of the shaft well expanding section, the prefabricated reserved ring (7) of the shaft well expanding section in the non-underground parking space in the prefabricated reserved ring (7) of the shaft well expanding section is a first prefabricated reserved ring (7-2) of the shaft well expanding section matched with the first prefabricated reserved plate (6-2) of the shaft well expanding section, and the prefabricated ring (7) of the shaft well expanding section in the underground parking space in the prefabricated reserved ring (7) of the shaft well expanding section is a first prefabricated reserved ring (7) of the shaft well expanding section matched with the second prefabricated plate (6-1) of the shaft well expanding section A reservation ring (7-2).
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| CN201911011639.9A CN110616933A (en) | 2019-10-23 | 2019-10-23 | Underground parking lot with assembled immersed tube vertical shaft and radiation type jacking tubes and construction method thereof |
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| CN201911011639.9A CN110616933A (en) | 2019-10-23 | 2019-10-23 | Underground parking lot with assembled immersed tube vertical shaft and radiation type jacking tubes and construction method thereof |
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| CN112252364A (en) * | 2020-11-02 | 2021-01-22 | 张率 | Relay assembly type shaft intelligent parking garage construction method |
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| CN206785045U (en) * | 2017-05-26 | 2017-12-22 | 北京中岩大地科技股份有限公司 | A kind of well shaft type underground three-dimensional garage combined with construction temporary shaft |
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| CN109854027A (en) * | 2019-01-30 | 2019-06-07 | 北京中岩智泊科技有限公司 | The stereo garage that a kind of existing building lower section increasing layer is built |
| CN109854026A (en) * | 2019-01-30 | 2019-06-07 | 北京中岩智泊科技有限公司 | A kind of tunneling increasing expansion formula underground three-dimensional garage |
| CN211143915U (en) * | 2019-10-23 | 2020-07-31 | 张率 | Underground parking lot with assembled immersed tube vertical shaft and radiation-type jacking tubes |
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| CN112252364A (en) * | 2020-11-02 | 2021-01-22 | 张率 | Relay assembly type shaft intelligent parking garage construction method |
| CN112252364B (en) * | 2020-11-02 | 2021-09-17 | 张率 | Relay assembly type shaft intelligent parking garage construction method |
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