CN112359876A - Construction method for underground structure main body and auxiliary interface - Google Patents
Construction method for underground structure main body and auxiliary interface Download PDFInfo
- Publication number
- CN112359876A CN112359876A CN202011558875.5A CN202011558875A CN112359876A CN 112359876 A CN112359876 A CN 112359876A CN 202011558875 A CN202011558875 A CN 202011558875A CN 112359876 A CN112359876 A CN 112359876A
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- auxiliary
- main body
- main
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
Abstract
The invention relates to a construction method for an underground structure main body and an auxiliary structure interface, which is characterized in that when a main body enclosure structure of the main body structure is constructed, the main body enclosure structure at the interface position of the main body structure and the auxiliary structure is set to be an outward convex structure, the outward convex structure protrudes towards one side of the auxiliary structure, the width of the outward convex structure is the width of the auxiliary structure, and the length of the outward convex structure extends for a certain distance from a deformation joint of the auxiliary structure to the direction of the auxiliary structure; and constructing the main structure and simultaneously constructing a partial structure of the auxiliary structure between the interface of the main structure and the auxiliary structure to the deformation joint. The invention has the advantages that: the construction method of the underground space structure main body and the auxiliary interface avoids the construction joints reserved at the main body and the auxiliary interface, solves the problem of water leakage of the interface construction joints, improves the service quality of the underground space structure, improves the durability of the structure and prolongs the service life of the structure.
Description
Technical Field
The invention relates to the technical field of underground space engineering construction, in particular to a construction method for an underground structure main body and an auxiliary interface.
Background
At present, the accelerated urbanization development brings a series of problems including traffic jam, urban garbage, environmental pollution and the like, and the reasonable utilization and development of underground space are important ways for solving the problems and become an important development trend of structural engineering in the 21 st century.
Most underground structures are constructed by an open cut method, usually, the main body part of the underground structure is firstly completed, then relevant auxiliary projects are implemented, construction joints are inevitably formed between the main body and the auxiliary projects, and deformation joints are reserved at a certain distance from the main body to adapt to uneven settlement. At present, a water stop belt or a water stop steel plate is buried in the general arrangement of an engineering construction joint, but an underground structure main body and an attachment are tightly attached to a main body enclosure structure, and the water stop belt or the water stop steel plate cannot be buried in advance, so that the existing method of the joint construction joint is to arrange two water swelling water stop glues and an annular full-section grouting pipe, a water receiving tank is used for assisting a top plate and a side wall, and a coiled material is laid outside the structure to prevent water.
The auxiliary engineering construction is comparatively lagged behind, and it is more to relate to the process earlier stage, and the basal plane clearance is unclean, stagnant water glue is pre-buried and the protection is not in place, the waterproof racking protection of getting rid of interface and slip casting pipe is pre-buried and the protection is not abundant, and a great deal of factor influences the waterproof quality of interface construction joint. The waterproof idea of 'fully-surrounding skin type' is claimed for the waterproof of the underground structure, however, no matter how to optimize and improve the waterproof method, the waterproof of the interface construction joint is still the weak point, and the leakage stoppage cost is huge and is very easy to repeat during operation.
Disclosure of Invention
The invention aims to provide a construction method for an underground structure main body and an auxiliary interface according to the defects of the prior art, wherein a local auxiliary structure is synchronously implemented to a deformation joint through local outward protrusion of a main body enclosure structure, so that a construction joint at the interface is eliminated, and a series of problems including leakage caused by the construction joint are avoided. Meanwhile, a waterproof reserved and protected space at the deformation joint is created through the outward protruding method, and the construction quality of the deformation joint is guaranteed. .
The purpose of the invention is realized by the following technical scheme:
a construction method for an underground structure main body and an auxiliary interface is used for the construction of the main body structure and the auxiliary structure in an underground space, and is characterized in that: the construction method comprises the following steps:
constructing a main body enclosure structure of a main body structure, setting the main body enclosure structure at the interface position of the main body structure and the accessory structure as an outward convex structure, wherein the outward convex structure protrudes towards one side of the accessory structure, the width of the outward convex structure is the width of the accessory structure, and the length of the outward convex structure extends for a certain distance from a deformation joint of the accessory structure to the direction of the accessory structure;
constructing the main structure and simultaneously constructing a partial structure of the auxiliary structure between the main structure and the auxiliary structure and the deformation joint;
carrying out waterproof construction on the main structure and the partial structure of the auxiliary structure;
and after the construction of the main structure is finished, constructing an auxiliary enclosure structure of the auxiliary structure and excavating a foundation pit, then breaking the main structure and the main enclosure structure at the interface position of the auxiliary structure, and finishing the construction of the rest auxiliary structure.
The length of the convex structure requires that the convex structure protrudes to the outer side of the deformation joint of the auxiliary structure by not less than 500mm so as to ensure the waterproof reservation and protection space of the deformation joint.
Reserving a waterproof coiled material throwing joint on the local structure of the auxiliary structure; and a middle-buried water stop, an externally-attached water stop and a waterproof coiled material reinforcing layer are reserved at the deformation joint.
Deformation joint tip sets up U type joint case, bury in the reservation formula waterstop paste the formula waterstop outward and the waterproofing membrane enhancement layer is arranged in the inboard of U type joint case, waterproofing membrane gets rid of the end of getting rid of the racking and gets rid of extremely U type joint case outside just is located between U type joint case and the main part envelope.
The joint is thrown out to waterproofing membrane throw out the end with set up waterproof protection shield between the main part envelope, waterproof protection shield satisfies in covering the requirement of throwing out the end.
The invention has the advantages that: according to the construction method of the underground space structure main body and the auxiliary interface, the construction joints reserved at the main body and the auxiliary interface are avoided, the problem of water leakage of the interface construction joints is solved, the service quality of the underground space structure is improved, the structure durability and the service life are improved, and the higher interface deformation joint leakage maintenance cost during operation is saved.
Drawings
FIG. 1 is a schematic plan view of a main structure according to the present invention;
FIG. 2 is a schematic cross-sectional view of the main structure of the present invention during its construction;
FIG. 3 is a schematic view of the inside of the deformation joint interface for water protection;
FIG. 4 is a schematic plan view of the present invention after completion of construction;
FIG. 5 is a schematic cross-sectional view of the present invention after completion of construction.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-5, the labels 1-14 are respectively shown as: the waterproof structure comprises a main structure 1, a main enclosing structure 2, an auxiliary structure 3, an auxiliary structure deformation joint 4, a waterproof coiled material and a throwing joint 5, a middle buried water stop 6, an external attached water stop 7, a waterproof coiled material reinforcing layer 8, a U-shaped joint box 9, a waterproof protection plate 10, a ground wall chiseling line 11, a sand mattress layer 12, a water stop filling protection material 13 and an auxiliary enclosing structure 14.
Example (b): as shown in fig. 1, in the construction method of the main body of the underground space structure and the auxiliary joints thereof in the embodiment, during the construction of the main body structure 1, the main body enclosure structure 2 at the joints of the main body structure 1 and the auxiliary structure 3 is locally protruded, so that the synchronous implementation of the local auxiliary structure 3 from the joint to the deformation joint 4 is realized, and an external waterproof layer swinging joint 5 and a buried water stop 6, an external water stop 7 and a waterproof coiled material protective layer 8 at the deformation joint are reserved, so that the problem of water leakage of common joint construction joints is solved, and the construction quality of the underground space structure is improved. The protection of the waterproof layer is realized by the U-shaped joint box 9 and the waterproof protection plate 10.
Specifically, as shown in fig. 1 to 3, the construction method in this embodiment specifically includes the following steps:
1) as shown in fig. 1 and 2, according to a common construction process, a main enclosure 2 is first constructed, and the main enclosure 2 is used for enclosing a main structure 1 located in an underground space.
When the main body enclosure structure 2 is constructed, the main body enclosure structure 2 is partially protruded outwards at the interface of the main body structure 1 and the auxiliary structure 3, the width of the protruded structure is the external packaging width of the auxiliary structure 3, and the protruded structure is properly placed outwards according to construction level, errors and stratum conditions, so that the external packaging waterproof construction and limit requirements of the auxiliary structure 3 are met; the length of the outer convex of the main body enclosure structure 2 is required to be not less than 500mm from the outer side of the deformation joint 4 of the auxiliary structure 3, so that the waterproof reservation and protection space of the deformation joint are ensured, and the construction quality of the deformation joint 4 of the auxiliary structure is ensured.
When the main structure 1 needs the enclosure structure 2 to participate in anti-floating, considering that the main enclosure structure 2 cannot be anchored with the bottom plate of the auxiliary structure 3 to assist in anti-floating because the main enclosure structure 2 protrudes out of the deformation joint 4, the top of the positions of two side walls of the auxiliary structure 3 which is implemented synchronously can be additionally provided with capping beams for reinforcing anti-floating; the position of the auxiliary structure deformation joint 4 is determined by comprehensively considering the structure stress, the anti-floating reinforcement requirement and the site condition.
2) As shown in fig. 1, 2 and 3, the construction of a cushion layer and a waterproof protective layer is completed after the foundation pit reaches the bottom, the 2 base planes of the main body enclosure are cleaned and leveled, and corresponding waterproof layers are constructed, including pre-paved waterproof coiled materials, a swinging joint 5, a waterproof reinforcing layer 8, an externally attached water stop 7 and the like, and corresponding structural member steel bars are bound.
Binding steel bars at the auxiliary structure deformation joint 4, laying a waterproof protection plate 10, laying a waterproof coiled material throwing joint 5, installing a U-shaped joint box 9 at the end part of the auxiliary structure deformation joint 4, and fixing a middle-buried water stop 6; bury formula waterstop 6 in the protection of U type joint box 9 aim at, waterproofing membrane get rid of racking 5 and get rid of to U type joint box 9 outside (waterproofing membrane get rid of racking 5 get rid of the end), waterproof protection board 10 inboard, protection waterproofing membrane gets rid of racking 5 and avoids destroying when aim at breaks kneck main part envelope 2.
The U-shaped joint box 9 is manufactured into an integral frame according to the size of the auxiliary interface, has certain self-supporting property, is convenient to erect and fix and can be welded by wood or steel; after one end of the buried water stop 6 is fixed with the main structure 1, the other end of the buried water stop can be arranged in a reserved protection space on the U-shaped joint box 9 so as to protect the reserved end of the buried water stop 6. And a water stop filling protection material 13 such as a geotextile is densely filled in the protection space of the U-shaped joint box 9 so as to improve the protection effect.
3) As shown in fig. 1 and 2, the main structure 1 of the underground space is constructed, and meanwhile, the local structure of the auxiliary structure 3 between the interface between the main structure and the auxiliary structure and the deformation joint 4 of the auxiliary structure is constructed, and the local structure and the main structure 1 are integrally cast, including a top bottom plate, a side wall, a middle floor slab and the like. And constructing the auxiliary structure deformation joint 4 according to the node construction requirement of the design drawing, and arranging corresponding construction reinforcing steel bars.
Specifically, the objects to be simultaneously constructed in this step include: a part structure of the main structure 1 and the attachment structure 3 at the interface position thereof, which part structure belongs to a part of the attachment structure 3 and which is enclosed by the main enclosure 2. Through the simultaneous construction in the step, the construction joint at the interface position of the main structure 1 and the auxiliary structure 3 can be cancelled, and the leakage problem caused by the existence of the construction joint is fundamentally avoided.
4) As shown in fig. 1, 2, 4 and 5, after the local structures between the main structure 1, the main structure 1 and the auxiliary structure 3 and the auxiliary structure deformation joint 4 and the corresponding waterproof and protective construction thereof are completed, the residual auxiliary enclosure structure 14 and the foundation pit are constructed, the main enclosure structure 2 at the interface is broken by taking a ground wall chiseling line 11 as a boundary after the excavation is finished, the waterproof protection plate 10 is removed, the waterproof coiled material of the auxiliary part is laid, the U-shaped joint box 9 is removed, the sundry garbage at the auxiliary deformation joint 4 is cleared, and the concrete pouring is completed after the residual auxiliary steel bars are bound. In order to ensure the settlement and deformation coordination of the auxiliary structure, the sand mattress layer 12 with the thickness of 300-400mm is laid at the pile head part 2 of the chiseled main body enclosure structure.
In the embodiment, the local auxiliary structure 3 and the auxiliary structure deformation joint 4 are synchronously implemented through the local outward protrusion of the main enclosure structure 2, so that the construction joint at the interface of the main enclosure structure 1 and the auxiliary structure 3 is eliminated, and a series of problems including leakage caused by the construction joint are avoided. Meanwhile, a waterproof reserved and protected space at the deformation joint is created through the outward protruding method, the construction quality of the deformation joint is guaranteed, the structural durability is improved, the service life is prolonged, and high interface deformation joint leakage maintenance cost during operation is saved.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, they are not to be considered repeated herein.
Claims (4)
1. A construction method for an underground structure main body and an auxiliary interface is used for the construction of the main body structure and the auxiliary structure in an underground space, and is characterized in that: the construction method comprises the following steps:
constructing a main body enclosure structure of a main body structure, setting the main body enclosure structure at the interface position of the main body structure and the accessory structure as an outward convex structure, wherein the outward convex structure protrudes towards one side of the accessory structure, the width of the outward convex structure is the width of the accessory structure, and the length of the outward convex structure extends for a certain distance from a deformation joint of the accessory structure to the direction of the accessory structure;
constructing the main structure and simultaneously constructing a partial structure of the auxiliary structure between the main structure and the auxiliary structure and the deformation joint;
carrying out waterproof construction on the main structure and the partial structure of the auxiliary structure;
and after the construction of the main structure is finished, constructing an auxiliary enclosure structure of the auxiliary structure and excavating a foundation pit, then breaking the main structure and the main enclosure structure at the interface position of the auxiliary structure, and finishing the construction of the rest auxiliary structure.
2. A method of constructing an underground structure body and appurtenance interface as claimed in claim 1, wherein: reserving a waterproof coiled material throwing joint on the local structure of the auxiliary structure; and a middle-buried water stop, an externally-attached water stop and a waterproof coiled material reinforcing layer are reserved at the deformation joint.
3. A method of constructing an underground structure body and appurtenance interface as claimed in claim 2, wherein: deformation joint tip sets up U type joint case, bury in the reservation formula waterstop paste the formula waterstop outward and the waterproofing membrane enhancement layer is arranged in the inboard of U type joint case, waterproofing membrane gets rid of the end of getting rid of the racking and gets rid of extremely U type joint case outside just is located between U type joint case and the main part envelope.
4. A method of constructing an underground structure body and appurtenance interface as claimed in claim 3, wherein: the joint is thrown out to waterproofing membrane throw out the end with set up waterproof protection shield between the main part envelope, waterproof protection shield satisfies in covering the requirement of throwing out the end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011558875.5A CN112359876A (en) | 2020-12-25 | 2020-12-25 | Construction method for underground structure main body and auxiliary interface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011558875.5A CN112359876A (en) | 2020-12-25 | 2020-12-25 | Construction method for underground structure main body and auxiliary interface |
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| CN112359876A true CN112359876A (en) | 2021-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668603A (en) * | 2021-07-31 | 2021-11-19 | 上海二十冶建设有限公司 | Waterproof construction method for joint of new and old pipe galleries |
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| CN107190778A (en) * | 2017-06-02 | 2017-09-22 | 上海市政工程设计研究总院（集团）有限公司 | A kind of extensible end well of pipe gallery and its construction method |
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| CN110273439A (en) * | 2019-07-16 | 2019-09-24 | 成都市建筑设计研究院 | Underground station main body and accessory structure interface float Structure and its construction method |
| CN209779704U (en) * | 2019-02-22 | 2019-12-13 | 中铁第六勘察设计院集团有限公司 | Cold joint waterproof structure for underground engineering construction |
| CN210887329U (en) * | 2019-08-20 | 2020-06-30 | 北京东方雨虹防水工程有限公司 | Waterproof construction structure of getting rid of raft department of underground construction bottom plate |
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2020
- 2020-12-25 CN CN202011558875.5A patent/CN112359876A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105401604A (en) * | 2015-11-20 | 2016-03-16 | 上海市政工程设计研究总院（集团）有限公司 | Reserved connecting port structure for underground pipe gallery and implementation method thereof |
| CN206376287U (en) * | 2016-12-30 | 2017-08-04 | 中铁第四勘察设计院集团有限公司 | Subway station main body and the float Structure of accessory structure interface |
| CN107190778A (en) * | 2017-06-02 | 2017-09-22 | 上海市政工程设计研究总院（集团）有限公司 | A kind of extensible end well of pipe gallery and its construction method |
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| CN209779704U (en) * | 2019-02-22 | 2019-12-13 | 中铁第六勘察设计院集团有限公司 | Cold joint waterproof structure for underground engineering construction |
| CN110273439A (en) * | 2019-07-16 | 2019-09-24 | 成都市建筑设计研究院 | Underground station main body and accessory structure interface float Structure and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668603A (en) * | 2021-07-31 | 2021-11-19 | 上海二十冶建设有限公司 | Waterproof construction method for joint of new and old pipe galleries |
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