CN117231224A - Underground circular shaft structure and construction method thereof - Google Patents
Underground circular shaft structure and construction method thereof Download PDFInfo
- Publication number
- CN117231224A CN117231224A CN202311206752.9A CN202311206752A CN117231224A CN 117231224 A CN117231224 A CN 117231224A CN 202311206752 A CN202311206752 A CN 202311206752A CN 117231224 A CN117231224 A CN 117231224A
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- 238000010276 construction Methods 0.000 title claims description 23
- 229920006262 high density polyethylene film Polymers 0.000 claims abstract description 62
- 239000004567 concrete Substances 0.000 claims abstract description 23
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 20
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 20
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 5
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000007123 defense Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses an underground circular shaft structure, which comprises a shaft side wall, an HDPE film with anchors and a supporting arch ring, wherein the HDPE film is arranged on the shaft side wall; the side wall of the shaft is formed by a reinforced concrete underground continuous wall; the HDPE film with the anchor nail is compositely fixed on the outer side of the side wall of the shaft; the supporting arch rings are prefabricated high-strength reinforced concrete arch rings, and the supporting arch rings are fixed on the inner side of the side wall of the shaft to provide support for the interior of the shaft; the invention adopts the side and bottom of rough three-dimensional HDPE membrane to prevent seepage and isolate water, the rigid underground diaphragm wall is a permanent structure, the internal precast reinforced concrete dome is a membrane-wall-dome underground circular shaft structure with stable support inside; the influence of underground water on the concrete structure is completely blocked, the service life of the structure is greatly prolonged, the cost is saved, the investment benefit is improved, and the carbon reduction or carbon reduction requirement is realized.
Description
Technical Field
The invention relates to the technical field of underground space engineering such as municipal administration and traffic, in particular to an underground circular shaft structure and a construction method thereof.
Background
With the rapid development of urban and national economy in China and the continuous promotion of double-carbon strategy, cities can develop towards intensive and low-carbonization directions, and underground spaces increasingly important to cities in the future develop.
The common structure for underground space application of the underground circular shaft structure can solve the application and growing demands of underground power distribution, underground civil air defense, underground motor vehicle parking lots and the like required by urban treatment according to local conditions; the underground shaft has the advantages of flexible site selection, small occupied surface area, vertical ground, deep downward extension of space, large underground volume, low and stable underground temperature and the like.
The existing underground circular shaft structure is generally manufactured by firstly constructing a circular anti-seepage enclosure structure by adopting row piles or underground continuous walls, pouring lining concrete in the process of excavating from top to bottom in the interior, and pouring bottom sealing concrete after excavating to the bottom to form a complete underground circular shaft structure; according to different functions of underground power distribution, underground civil air defense and underground parking lots, the internal structure arrangement is slightly different, but the underground circular shaft structures are not greatly different.
However, the existing design uses the external row piles or underground enclosure wall structure as a temporary structure generally, and the underground circular enclosure structure constructed by the traditional process has the defects of more or less leakage, honeycomb, holes and the like due to the underwater construction process, so that the quality requirement of the permanent structure is difficult to meet, and meanwhile, the leakage and erosion of underground water are difficult to radically cure, so that the steel bars in the structure are easy to rust, and the service life of the enclosure structure is influenced.
In the current design, the enclosure structure is used as an excavation temporary structure, a reinforced concrete structure is designed in the enclosure structure, and a waterproof layer is sometimes arranged between the two structures; the construction of the underground circular shaft structure according to the current design specifications generally still has leakage problems due to factors such as construction process, impervious layer construction process, material service life and the like, increases the later operation cost and has potential safety hazards.
Disclosure of Invention
In view of the above, the present invention provides an underground circular shaft structure and a construction method thereof, which aims to solve the above technical problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an underground circular wellbore structure comprising a wellbore sidewall, an anchored HDPE film, and a support arch;
the side wall of the shaft is formed by a reinforced concrete underground continuous wall;
the HDPE film with the anchor is compositely fixed on the outer side of the side wall of the shaft;
the support arch rings are prefabricated high-strength reinforced concrete arch rings, and a plurality of support arch rings are fixed on the inner side of the side wall of the shaft at intervals to provide support for the interior of the shaft.
Preferably, the HDPE film with the anchor comprises an HDPE film body and anchor pieces, wherein the HDPE film body is a large-breadth HDPE rough film, and a plurality of anchor pieces are uniformly welded on one side surface of the HDPE film body; the anchor nail piece is fixedly connected with the side wall of the shaft in a concrete pouring mode.
Preferably, the shaft bottom plate is of a concrete bottom sealing structure, the shaft bottom plate and the shaft side wall divide the HDPE film with the anchor into two parts of a shaft bottom plate HDPE film and a shaft side wall HDPE film, and the shaft bottom plate HDPE film and the shaft side wall HDPE film are connected through double-seam welding.
Preferably, the HDPE film of the bottom of the shaft and the HDPE film of the side wall of the shaft are covered and reinforced by self-adhesive HDPE belts.
Preferably, the device further comprises a steel structure support piece, wherein the steel structure support piece is connected with the embedded piece and used for supporting and positioning the supporting arch ring.
The invention provides a construction method of an underground circular shaft structure, which comprises the following steps:
s1, processing an embedded part and an HDPE film with an anchor bolt in a factory, and finishing the processing of a steel cage and prefabricating a supporting arch ring;
s2, excavating a site slotted hole unit, cleaning a hole, arranging a steel cage downwards and arranging a special joint plate downwards;
s3, fixing the HDPE film with the anchor on the water facing side of the processed steel cage;
s4, pouring a first reinforced underground continuous wall groove section by a conduit method, and sequentially completing construction of the side wall of the shaft;
s5, excavating the interior of the shaft from top to bottom, and assembling a supporting arch ring at a preset inner supporting position;
s6, completing connection centering of the arch ring, and pouring a gap between the wall body and the arch ring and an arch ring closing area;
s7, pouring a bottom sealing cushion layer after excavation to the bottom of the well is completed in sequence, and finishing the overlap joint of HDPE (high-density polyethylene) films of the bottom plate of the well shaft;
and S8, pouring concrete for curing the bottom plate to form an underground circular shaft space required in the later period.
Preferably, the side wall of the shaft adopts an underground continuous wall cast-in-situ process, and the connection between the underground continuous wall units is realized through a steel structure vertical locking piece.
Compared with the prior art, the invention discloses an underground circular shaft structure and a construction method thereof, and has the following beneficial effects:
the invention adopts the side and bottom of rough three-dimensional HDPE membrane to prevent seepage and isolate water, the rigid underground diaphragm wall is a permanent structure, the internal precast reinforced concrete dome is a membrane-wall-dome underground circular shaft structure with stable support inside; the influence of underground water on the concrete structure is completely blocked, the service life of the structure is greatly prolonged, the cost is saved, the investment benefit is improved, and the carbon reduction or carbon reduction requirement is realized.
The invention adopts a membrane-wall-arch underground circular shaft structure, and the three-dimensional HDPE membrane with anchors provides a complete and reliable seepage prevention system on the water facing side of the side surface and the bottom; the wall body is constructed by adopting an underground reinforced concrete underground continuous wall form and a rigid joint structure, so that the quality of the concrete structure constructed on the similar ground is provided; the inner side adopts an assembled prefabricated high-strength reinforced concrete arch ring to provide support for the interior of a shaft, ensure the exertion of the arch effect of the whole structure and effectively reduce the thickness of the wall body of the shaft.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a top view of an underground circular shaft structure and a construction method thereof according to the present invention;
FIG. 2 is a schematic view of a cross-sectional structure of an underground circular shaft according to the present invention;
FIG. 3 is a schematic view of the structure of the underground circular shaft structure and the enlarged view at B in FIG. 2 provided by the construction method of the invention;
FIG. 4 is a schematic view of the structure of the enlarged view at A in FIG. 2, provided by the underground circular shaft structure and the construction method thereof;
FIG. 5 is a schematic view of a latch structure provided by the present invention for an underground circular shaft structure and a construction method thereof;
wherein:
1. a wellbore sidewall; 2. an anchored HDPE film; 3. supporting the arch ring; 4. HDPE film; 5. an anchor member; 6. a wellbore floor; 7. a steel structural support; 8. a locking piece; 9. an embedded part; 10. self-adhesive HDPE tape.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, an embodiment of the present invention discloses an underground circular wellbore structure comprising a wellbore sidewall 1, an anchored HDPE film 2, and a support arch 3;
the shaft side wall 1 is formed by a reinforced concrete underground continuous wall;
the HDPE film 2 with the anchor is compositely fixed on the outer side of the side wall 1 of the shaft;
the supporting arch rings 3 are prefabricated high-strength reinforced concrete arch rings, and a plurality of supporting arch rings 3 are fixed on the inner side of the side wall 1 of the shaft at intervals to provide support for the interior of the shaft.
In the embodiment, due to the development of machines in recent years, the shaft side wall 1 adopts the latest underground diaphragm wall cast-in-situ process, the connection between units of the underground diaphragm wall is realized through the customized steel structure vertical locking piece 8, and the shearing resistance, tensile resistance and compressive stress in all directions of a joint part are ensured to be not less than the level of an underground diaphragm wall body; the special embedded part with the connector and the steel structure is arranged at the position with the connecting structure at the inner side, so that the later-stage connection with the internal structure can be realized.
The underground diaphragm wall unit comprises an existing common steel cage and locking pieces 8 fixed at four corners of the steel cage, each locking piece 8 comprises a locking strip and a connecting plate, each locking strip comprises an L-shaped locking connecting piece and a locking hook bent towards the L-shaped locking connecting piece, and the connecting plate is connected to one end, far away from the transverse plate, of a vertical plate of the L-shaped locking connecting piece.
The embedded part comprises a steel plate serving as a main body, I-steel sections and reinforcing ribs, the form and construction selection of the embedded part are determined by calculating the embedded part according to the stress and the size of the underground continuous wall and the internal structure, the thickness size of the steel plate, the number of the I-steel sections, the distance between connectors and the specification size are determined, and a machining diagram is obtained; when the reinforcement cage is processed on site, the special embedded part and the reinforcement cage are fixed together, in order to ensure the firmness of the embedded part, additional erection ribs are possibly required to be welded and fixed with the embedded part, then a required connector is installed and fixed with the reinforcement cage, and the position of the embedded part is required to be rechecked, so that the processing is free from errors.
The rigid underground diaphragm wall adopts standard embedded parts customized and produced by factories, and is installed and fixed at the position opposite to the internal structure when the reinforcement cage is processed; the steel plate with the connector hole and the mining I-steel pup joint welded with the steel plate are formed, smooth chamfering is realized on the vertical bottoms of the steel plate and the I-steel, and round holes are formed in the free steel plate space without the I-steel section, so that better flowing is facilitated when underwater concrete pouring is performed.
In order to further optimize the technical scheme, the HDPE film 2 with the anchor comprises an HDPE film body 4 and anchor pieces 5, wherein the HDPE film body 4 is a large-breadth HDPE rough film, and a plurality of anchor pieces 5 are uniformly welded on one side surface of the HDPE film body 4; the anchor 5 is fixedly connected with the side wall 1 of the shaft by concrete pouring.
In the embodiment, the HDPE stereoscopic film with the anchor is prepared by adopting a high-quality large-breadth HDPE rough film as a film body, avoiding the method of the traditional small-breadth waterproof coiled material (more lap joint parts, easy influence by technology and environment and defect risk), adopting a flexible production line to weld the HDPE anchor, adopting hot melt or ultrasonic welding for welding, and adopting detectable double-seam welding for stereoscopic HDPE lap joint; the HDPE film adopts the rough surface at least on the upstream surface, maintains the necessary friction force with the peripheral soil body, and adopts the anchor uniformly distributed structure on the contact surface with the concrete wall body, so that the HDPE film is tightly combined with the concrete structure, and the high-standard seepage-proofing function is exerted.
In order to further optimize the technical scheme, the shaft bottom plate 6 is of a concrete bottom sealing structure, the shaft bottom plate 6 and the shaft side wall 1 divide the HDPE film 2 with the anchor into two parts of a shaft bottom plate HDPE film and a shaft side wall HDPE film, and the shaft bottom plate HDPE film and the shaft side wall HDPE film are connected through double-seam welding.
To further optimize the above technical solution, the wellbore bottom plate HDPE film and the wellbore side wall HDPE film are reinforced by a self-adhesive HDPE tape 10.
In the embodiment, the three-dimensional HDPE film system adopts a flexible welding production mode, and HDPE anchors with bases are welded on the film body on one side of the rough surface HDPE film by a thermal welding or ultrasonic welding technology to form a three-dimensional HDPE film structure, so that the HDPE film and concrete are integrated when pouring; the membrane body is cut according to the size and processed, and overlap joint adopts double seam welding each other, and the welding seam adopts pressure air to detect, and corner or relative possible deformation department still need self-adhesion HDPE membrane area 10 cover to strengthen in addition to double seam welding.
After the underground shaft is excavated to the bottom, the bottom concrete back cover is needed, the three-dimensional HDPE film of the wall body part of the side wall 1 of the shaft is peeled off above the bottom cushion layer, double-slit welding is carried out on the HDPE film at the bottom of the shaft at the design position, the construction period pressure is detected, the self-adhesive HDPE belt 10 is additionally used for covering, reinforcing and protecting the corner position and the position with larger deformation, the three-dimensional HDPE film is used for completely wrapping the underground outer side of the shaft, potential corrosion of underground water to the shaft concrete is prevented, corrosion of reinforced concrete due to underground water is avoided, and the service life of the whole shaft is prolonged.
In order to further optimize the technical scheme, the steel structure support member 7 is further included, and the steel structure support member 7 is connected with the embedded part 9 and is used for supporting and positioning the supporting arch ring 3.
In the invention, supporting arch rings 3 are arranged at intervals on the inner side of a shaft side wall 1, the supporting arch rings 3 adopt an assembled prefabricated high-strength reinforced concrete arch ring structure, the arch rings are prefabricated and maintained in high precision in a factory, in the shaft excavation process, the arch rings are accurately centered and installed and are connected through a shaft side wall 1 wall embedded part 9, the middle positions are an adjusting and centering balance transition area, and the closed loop positions of the arch rings and the positions between the wall and the arch rings are cast-in-place and sealed by adopting concrete doped with expansion cement; the arch structure of the arch ring bears the deformation stress of the wall body of the shaft side wall 1 in a larger proportion.
The invention provides a construction method of an underground circular shaft structure, which comprises the following steps:
s1, processing an embedded part and an HDPE film 2 with an anchor bolt in a factory, and finishing the processing of a steel cage and prefabricating a supporting arch ring 3;
s2, excavating a site slotted hole unit, cleaning a hole, arranging a steel cage downwards and arranging a special joint plate downwards;
s3, fixing the HDPE film with the anchor on the water facing side of the processed steel cage;
s4, pouring a first reinforced underground continuous wall groove section by a conduit method, and sequentially completing construction of a shaft side wall 1;
s5, excavating the interior of the shaft from top to bottom, and assembling a supporting arch ring 3 at a preset inner supporting position;
s6, completing connection centering of the arch ring, and pouring a gap between the wall body and the arch ring and an arch ring closing area;
s7, pouring a bottom sealing cushion layer after excavation to the bottom of the well is completed in sequence, and finishing the overlap joint of HDPE (high-density polyethylene) films of the bottom plate of the well shaft;
and S8, pouring concrete for curing the bottom plate to form an underground circular shaft space required in the later period.
In this embodiment, the temporary construction facilities of the underground diaphragm wall such as guide wall and slurry system, the concrete proportioning and production and supply system of the underwater concrete, the reinforcement cage processing workshop and processing jig frame platform, and the on-site measurement positioning and guide wall preparation work are prepared before construction, the reinforced concrete arch section prefabrication workshop is prefabricated in factories, and then the construction is performed sequentially.
In order to further optimize the technical scheme, the shaft side wall 1 adopts an underground diaphragm wall cast-in-situ process, and the connection between underground diaphragm wall units is realized through the steel structure vertical locking piece 8.
The invention is suitable for occasions such as urban impounding reservoirs, underground parking lots, underground civil air defense projects, underground power distribution stations, underground storage spaces and the like.
The structural characteristics of the membrane-wall-arch structure determine that an underground shaft with larger diameter can be constructed, so that the underground shaft has higher anti-seepage standard, a more reasonable stress structure and longer service life, and can better meet the development and application of the underground space of the current building dense area.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
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 (7)
1. An underground circular wellbore structure comprising a wellbore sidewall, an anchored HDPE film, and a support arch;
the side wall of the shaft is formed by a reinforced concrete underground continuous wall;
the HDPE film with the anchor is compositely fixed on the outer side of the side wall of the shaft;
the support arch rings are prefabricated high-strength reinforced concrete arch rings, and a plurality of support arch rings are fixed on the inner side of the side wall of the shaft at intervals to provide support for the interior of the shaft.
2. The underground circular shaft structure of claim 1, wherein the anchored HDPE film comprises a HDPE film body and an anchor member, the HDPE film body is a large-format HDPE rough film, and a plurality of anchor members are uniformly welded on one side of the HDPE film body; the anchor nail piece is fixedly connected with the side wall of the shaft in a concrete pouring mode.
3. The underground circular shaft structure of claim 1, wherein the shaft bottom plate is a concrete bottom-sealing structure, the shaft bottom plate and the shaft side wall divide the anchored HDPE film into two parts, namely a shaft bottom plate HDPE film and a shaft side wall HDPE film, and the shaft bottom plate HDPE film and the shaft side wall HDPE film are connected by double-seam welding.
4. A subterranean circular well bore structure according to claim 3, wherein the well bore floor HDPE film and the well bore sidewall HDPE film are reinforced by a self-adhesive HDPE tape cover.
5. A subterranean circular well bore structure according to claim 1, further comprising a steel structural support connected to the embedment for supporting and positioning the support arch.
6. A method of constructing an underground circular well bore structure, comprising the steps of:
s1, processing an embedded part and an HDPE film with an anchor bolt in a factory, and finishing the processing of a steel cage and prefabricating a supporting arch ring;
s2, excavating a site slotted hole unit, cleaning a hole, arranging a steel cage downwards and arranging a special joint plate downwards;
s3, fixing the HDPE film with the anchor on the water facing side of the processed steel cage;
s4, pouring a first reinforced underground continuous wall groove section by a conduit method, and sequentially completing construction of the side wall of the shaft;
s5, excavating the interior of the shaft from top to bottom, and assembling a supporting arch ring at a preset inner supporting position;
s6, completing connection centering of the arch ring, and pouring a gap between the wall body and the arch ring and an arch ring closing area;
s7, pouring a bottom sealing cushion layer after excavation to the bottom of the well is completed in sequence, and finishing the overlap joint of HDPE (high-density polyethylene) films of the bottom plate of the well shaft;
and S8, pouring concrete for curing the bottom plate to form an underground circular shaft space required in the later period.
7. The method for constructing an underground circular shaft structure according to claim 6, wherein the shaft side wall adopts an underground continuous wall cast-in-situ process, and the connection between the underground continuous wall units is realized through a steel structure vertical locking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311206752.9A CN117231224A (en) | 2023-09-19 | 2023-09-19 | Underground circular shaft structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311206752.9A CN117231224A (en) | 2023-09-19 | 2023-09-19 | Underground circular shaft structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117231224A true CN117231224A (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311206752.9A Pending CN117231224A (en) | 2023-09-19 | 2023-09-19 | Underground circular shaft structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117231224A (en) |
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2023
- 2023-09-19 CN CN202311206752.9A patent/CN117231224A/en active Pending
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