CN107100208B - Anti-floating waterproof structure of underground building and construction method - Google Patents
Anti-floating waterproof structure of underground building and construction method Download PDFInfo
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- CN107100208B CN107100208B CN201710530333.9A CN201710530333A CN107100208B CN 107100208 B CN107100208 B CN 107100208B CN 201710530333 A CN201710530333 A CN 201710530333A CN 107100208 B CN107100208 B CN 107100208B
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- 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
- E02D31/10—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 soil pressure or hydraulic pressure
- E02D31/12—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 soil pressure or hydraulic pressure against upward hydraulic pressure
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Abstract
The invention belongs to the technical field of engineering construction, and particularly relates to an anti-floating waterproof structure of an underground building, which comprises a first force transmission structure and a second force transmission structure, wherein the bottom of the second-stage main structure is provided with a first bottom plate and a second bottom plate which are tightly connected, the periphery of the first-stage main structure at the side connected with the second-stage main structure is provided with a first-stage enclosure structure, the second force transmission structure is positioned between the top of the first-stage enclosure structure and the second bottom plate, the first force transmission structure is arranged below the first bottom plate, one side of the first force transmission structure is tightly abutted against the first-stage enclosure structure, the first force transmission structure and the second force transmission structure are tightly embedded, a waterproof coiled material is arranged between the first force transmission structure and the second force transmission structure, and the two sides of the waterproof coiled material extend to be continuous with the waterproof coiled material at the periphery of the first-stage main structure and the second-stage main structure. The invention also provides a construction method of the anti-floating waterproof structure. The invention can ensure that the waterproof coiled material is continuously laid at the interface while providing anti-floating property, improves the anti-floating capacity and the waterproof effect of the building, and has the advantages of simple structure, easy construction, low cost and the like.
Description
Technical Field
The invention belongs to the technical field of building engineering, and particularly relates to an anti-floating waterproof structure and a construction method of an underground building, which can provide anti-floating force and ensure that waterproof coiled materials are continuously laid so as to meet the anti-floating and waterproof requirements of the underground building.
Background
In the construction of underground structure engineering, due to the influence of factors such as staged traffic fluffing and pipeline moving and changing requirements, surrounding environment protection, construction period and the like, the underground structure is often constructed in stages, a foundation pit is supported in a subarea manner, and a primary enclosure structure (a cast-in-situ bored pile and an underground diaphragm wall) is usually adopted as a pit-divided pile of the foundation pit. The first-stage enclosure structure and the construction interface structure are required to be chiseled out within the connection range of the second-stage main structure and the first-stage main structure, so that the second-stage main structure and the first-stage main structure are communicated into a whole.
Because the first-stage main structure is externally connected with the second-stage main structure, a large number of first-stage enclosure structures (walls) need to be chiseled out in the range of the interface, and a large number of first-stage enclosure structures (walls) below a bottom plate of the second-stage main structure at the interface are buried underground. However, further studies have shown that this method has the following drawbacks and disadvantages: (1) the waterproof coiled material is interrupted at the anchoring position, the structural waterproof needs special treatment, (2) the joint is tightly attached to the construction joint of the primary main structure and the secondary main structure, and the waterproof effect cannot be ensured.
In view of the above-mentioned drawbacks and disadvantages, there is a need in the art for a floating-resistant waterproof structure that can provide buoyancy resistance and ensure continuous laying of waterproof rolls, so as to meet the requirements of floating resistance and waterproofing of underground buildings.
Disclosure of Invention
The invention provides an anti-floating waterproof structure and a construction method of an underground building, aiming at the defects or the improvement requirements of the prior art, wherein the anti-floating waterproof structure and the construction method of the underground building are correspondingly designed by combining the characteristic of large span of an interface between a first-stage main structure and a second-stage main structure of the underground building, and the anti-floating waterproof structure and the construction method can correspondingly and effectively provide anti-floating and ensure continuous laying of waterproof coiled materials by researching and designing the first-stage main structure, the second-stage main structure, a first force transmission structure, a second force transmission structure, the arrangement mode and the like of the underground building.
To achieve the above object, according to one aspect of the present invention, there is provided an anti-floating waterproof structure for an underground building, characterized by comprising a first force transfer structure and a second force transfer structure, wherein:
the first force transmission structure and the second force transmission structure are positioned at the joint of the adjacent first-stage main structure and second-stage main structure bottom plates, the first bottom plate and the second bottom plate which are tightly connected are laid at the bottom of the second-stage main structure, a first-stage enclosure structure is arranged below the joint,
the waterproof structure comprises a first base plate, a second base plate, a first force transmission structure, a second force transmission structure, a waterproof coiled material and a waterproof coiled material, wherein the second force transmission structure is located between the top of the first-stage enclosure structure and the second base plate, the first force transmission structure is arranged below the first base plate, one side of the first force transmission structure is close to the first-stage enclosure structure, the second force transmission structure is tightly embedded with the first force transmission structure, the waterproof coiled material is laid between the first force transmission structure and the second force transmission structure, and two sides of the waterproof coiled material extend to be in lap joint with the first-stage main structure and the second-stage main structure to form a continuous whole.
Further preferably, the longitudinal section of the first force transmission structure is L-shaped, and the longitudinal section of the second force transmission structure is rectangular. Many comparisons show that the L-shaped structure and the rectangular structure are embedded, so that the first force transmission structure and the second force transmission structure can be embedded tightly, the first-stage enclosing structure can be effectively utilized for resisting floating, the transfer of the anti-floating force is effectively realized, and the structure is easy to construct and low in cost.
Preferably, first waterproofing membrane has been laid between primary structure and the primary envelope, fourth waterproofing membrane has been laid between second biography power structure and the second bottom plate, second waterproofing membrane has been laid to first biography power structure bottom and side, third waterproofing membrane has been laid to first bottom plate bottom, it is continuous incessant between first waterproofing membrane, fourth waterproofing membrane, second waterproofing membrane and the third waterproofing membrane. Through the arrangement of the first force transmission structure and the second force transmission structure, the continuous laying of the waterproof coiled material can be realized while the first-stage enclosure structure participates in anti-floating, the waterproof coiled material is prevented from being interrupted, the anti-floating capacity and the waterproof effect of the structure are greatly improved, and the construction difficulty of the joint is reduced.
Preferably, a tongue-and-groove construction joint is arranged between the first bottom plate and the second bottom plate, and a steel plate waterstop is further arranged at the tongue-and-groove construction joint to strengthen the waterproof performance of the construction joint.
Preferably, a grouting pipe and a water-stop adhesive are arranged at a construction joint between the primary main structure and the second bottom plate for waterproof treatment.
Through set up steel sheet waterstop, slip casting pipe and waterproof glue at construction joint department and do water repellent, can further strengthen the water-proof effects of whole anti structure of floating to satisfy the waterproof demand of underground building.
According to another aspect of the invention, a construction method of an anti-floating waterproof structure of an underground building is provided, which is characterized by comprising the following steps:
s1, constructing a first-stage enclosure structure, digging a first-stage foundation pit in the first-stage enclosure structure, paving a first waterproof coiled material in the first-stage foundation pit, and building a first-stage main structure;
s2, constructing a second-stage enclosure structure, excavating a second-stage foundation pit in the second-stage enclosure structure, excavating a foundation pit of a first transmission structure at the joint of the bottom of the second-stage foundation pit and the first-stage enclosure structure, paving a second waterproof coiled material in the foundation pit of the first transmission structure, and paving a third waterproof coiled material at the bottom of a first bottom plate;
s3, building a first force transfer structure and a first bottom plate on the second waterproof coiled material and the third waterproof coiled material, and then pouring the first pouring part of the side wall and the top plate of the second-stage main body structure;
s4, chiseling a first-stage enclosure structure with the height of the top of the first force transmission structure being higher than the top of the first-stage enclosure structure, constructing a second force transmission structure on the top of the rest first-stage enclosure structure, enabling the second force transmission structure and the first force transmission structure to be mutually embedded, and paving a fourth waterproof coiled material on the top of the second force transmission structure;
s5 reliable lapping among the first waterproof coiled material, the fourth waterproof coiled material, the second waterproof coiled material and the third waterproof coiled material is enabled to be continuous, a second bottom plate is constructed on the fourth waterproof coiled material, then the post-pouring part of the side wall and the top plate of the second-stage main structure is built in a recycling mode, and the construction of the whole anti-floating waterproof structure is completed.
Preferably, the first force transmission structure is L-shaped in longitudinal section, and the second force transmission structure is rectangular in longitudinal section. More comparisons show that the L-shaped structure and the rectangular structure are embedded, so that the waterproof coiled material is continuously paved between the two force transmission structures, the remaining first-stage enclosure structure under the second-stage main structure bottom plate can be effectively utilized for resisting floating, the transfer of the anti-floating force is effectively realized, and the structure is easy to construct and low in cost.
Preferably, all waterproof coiled materials are thrown and rubbed at the joint and protected during construction. The protective layer is thrown and rubbed at the joint during construction, so that the sections of waterproof coiled materials can be conveniently and subsequently lapped, a good waterproof effect is realized, and the construction difficulty is reduced.
Preferably, a tongue-and-groove construction joint is arranged between the first bottom plate and the second bottom plate, and a steel plate waterstop is further arranged at the tongue-and-groove construction joint to strengthen the waterproof performance of the construction joint.
Preferably, a grouting pipe and a water-stop adhesive are arranged at a construction joint between the primary main structure and the second bottom plate for waterproof treatment.
Through set up steel sheet waterstop, slip casting pipe and waterproof glue at construction joint department and do water repellent, can further strengthen the water-proof effects of whole anti structure of floating to satisfy the waterproof demand of underground building.
In general, compared with the prior art, the technical scheme of the invention has the following advantages and beneficial effects:
(1) the invention combines the characteristic of large span of the interface between the first-stage main structure and the second-stage main structure of the underground building, correspondingly designs the anti-floating waterproof structure and the construction method of the underground building, researches and designs the arrangement modes of the main structure, the first force transmission structure and the second force transmission structure of the underground building, and the like, can utilize the residual first-stage enclosure structure under the bottom plate of the second-stage main structure to participate in anti-floating, improves the anti-floating capability of the building, simultaneously can effectively solve the problem of poor waterproof effect caused by the interruption of waterproof coiled materials through the continuous laying of the waterproof coiled materials, and can ensure good waterproof effect of the structure, thereby being suitable for the underground structure stage construction, foundation pit support and partition, and the enclosure structure to participate in the structural system of the anti-floating underground building.
(2) In order to utilize an enclosing structure under a bottom plate to participate in anti-floating and ensure good structural waterproof effect, the invention provides a scheme of an anti-floating waterproof structure. Meanwhile, the first force transmission structure can transmit the horizontal force of the first bottom plate to the first-stage enclosure structure and the main structure in time before the second bottom plate at the joint is built again.
(3) According to the invention, through the arrangement of the first force transmission structure and the second force transmission structure, no steel bar is connected between the enclosure structure and the main structure in the anti-floating force transmission process, and the waterproof coiled material can be continuously laid between the enclosure structure and the main structure, so that the waterproof coiled material is prevented from being interrupted, the waterproof effect of the structure is greatly improved, and the construction difficulty of the joint is reduced.
(4) The protective layer is thrown and rubbed at the joint during construction, so that the sections of waterproof coiled materials can be conveniently and subsequently lapped, a good waterproof effect is realized, and the construction difficulty is reduced. And through set up steel sheet waterstop, slip casting pipe and waterproof glue at construction joint department and do water repellent treatment, can further strengthen the water-proof effects of whole anti structure of floating to satisfy the waterproof demand of underground building.
(5) The invention has simple and practical structure, reliable and definite force transfer, ensured waterproof effect, convenient construction and low cost, and can be used in the fields of deep foundation pits of house building engineering, rail traffic engineering, ports and docks and the like.
Drawings
FIG. 1 is a cross-sectional view of an underground building of the present invention;
fig. 2 is a cross-sectional view of the anti-floating structure of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
1-first-stage building enclosure, 101-first-stage building enclosure main ribs, 2-first-stage main structure, 201-first waterproof coiled material, 202-first-stage main structure main ribs, 3-second-stage building enclosure, 4-first force transmission structure, 401-second waterproof coiled material, 402-first force transmission structure main ribs, 5-first bottom plate, 501-third waterproof coiled material, 502-first bottom plate main ribs, 503-first bottom plate groove construction joints, 504-steel plate water stop belts, 6-second force transmission structure, 601-second force transmission structure main ribs, 7-second bottom plate, 701-fourth waterproof coiled material, 702-second bottom plate main ribs, 703-second bottom plate construction joints, 704-grouting pipes and 705-water stop glue.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the invention provides an anti-floating waterproof structure of an underground building, which utilizes anti-floating force of the residual piles (walls) after a first-stage building enclosure (wall) is chiseled off, force transmission structures are respectively arranged at the top of the first-stage building enclosure (wall) and the bottom of a second-stage main structure bottom plate, the anti-floating force is transmitted to a main structure by a second force transmission structure arranged at the top of the residual piles (walls) after the first-stage building enclosure is chiseled off and pressing an L-shaped first force transmission structure under the second-stage main structure bottom plate, and meanwhile, the horizontal force of the first bottom plate can be transmitted to the first-stage building enclosure (wall) and the main structure in time before the second bottom plate is rebuilt at an interface by the L-shaped first structure force transmission structure.
The invention provides an anti-floating waterproof structure of an underground building, which comprises a first force transmission structure 4 and a second force transmission structure 6, wherein:
the first force transmission structure 4 and the second force transmission structure 6 are positioned at the interface of the adjacent first-stage main body structure 2 and the second-stage main body structure, the bottom of the second-stage main body structure is provided with a first bottom plate 5 and a second bottom plate 7 which are tightly connected, the periphery of the first-stage main body structure 2 is provided with a first-stage enclosure structure 1,
second power transmission structure 6 is located between 1 top of remaining first phase envelope and the second bottom plate 7 after the chisel is removed, 5 below of first bottom plate are first power transmission structure 4, first power transmission structure 4 one side with first phase envelope leans on mutually, second power transmission structure 6 and the inseparable gomphosis of first power transmission structure 4, lay waterproofing membrane between first power transmission structure 4 and the second power transmission structure 6, this waterproofing membrane both sides extend with first phase major structure 2 and the peripheral waterproofing membrane overlap joint of second phase major structure form continuous whole, avoid waterproofing membrane to interrupt to improve the anti floating ability and the water-proof effects of structure greatly, reduced the construction degree of difficulty of junction.
The longitudinal section of the first force transmission structure 4 is L-shaped, and the longitudinal section of the second force transmission structure 6 is rectangular. First power transmission structure and second power transmission structure adopt L type structure and rectangle structure gomphosis, when guaranteeing waterproofing membrane continuous laying between two power transmission structure, can utilize remaining first phase envelope under the second phase major structure bottom plate effectively to resist floating, realize the transmission of anti buoyancy effectively, this structure is easily under construction moreover, low cost.
In one specific implementation of the invention, a first waterproof coiled material 201 is laid between the first-stage main body structure 2 and the first-stage enclosure structure 1, a fourth waterproof coiled material 701 is laid between the second force transmission structure 6 and the second bottom plate 7, second waterproof coiled materials 401 are laid at the bottom and the side surfaces of the first force transmission structure 4, a third waterproof coiled material 501 is laid at the bottom of the first bottom plate 5, and the first waterproof coiled material 201, the fourth waterproof coiled material 701, the second waterproof coiled material 401 and the third waterproof coiled material 501 are continuous and uninterrupted.
In another specific implementation of the present invention, a rabbet construction joint 503 is disposed between the first bottom plate 5 and the second bottom plate 7, and a steel plate waterstop 504 is further disposed at the rabbet construction joint 503. And a grouting pipe 704 and a water-stop glue 705 are arranged at a construction joint between the primary main structure 2 and the second bottom plate 7 for waterproof treatment.
The first-stage enclosure structure 1 and the enclosure structure top force transmission structure 6 form an enclosure structure which provides anti-buoyancy outside the waterproof coiled material, and the first-stage main structure 2, the L-shaped first force transmission structure 4, the first bottom plate 5 and the second bottom plate 7 form a main structure which receives anti-buoyancy inside the waterproof coiled material. The envelope and the main structure are not connected by any steel bar, the waterproof coiled material can be continuously laid between the envelope and the main structure, the force transmission is reliable and clear, and the waterproof effect is ensured.
The invention also provides a construction method of the anti-floating waterproof structure of the underground building, which comprises the following steps:
s1, constructing a first-stage enclosure structure 1, excavating a first-stage foundation pit in the first-stage enclosure structure 1, laying a first waterproof roll 201 in the first-stage foundation pit and building a first-stage main structure 2 again, wherein the first waterproof roll 201 is thrown, rubbed and protected at an interface;
s2, constructing a second-stage enclosure structure 3, excavating a second-stage foundation pit in the second-stage enclosure structure 3, excavating a foundation pit of a first power transmission structure 4 at the joint of the bottom of the second-stage foundation pit and a first-stage enclosure structure 1, paving a second waterproof coiled material 401 in the foundation pit of the first power transmission structure 4, paving a third waterproof coiled material 501 at the bottom of a first bottom plate, reliably overlapping the second waterproof coiled material 401 and the third waterproof coiled material 501, throwing, rubbing and protecting the second waterproof coiled material 401 at a construction joint 503, arranging a steel plate water stop 504 at the construction joint 503, and strengthening the water resistance of the construction joint;
s3, building the first force transmission structure 4 and the first bottom plate 5 on the second waterproof coiled material 401 and the third waterproof coiled material 501, and then building the first pouring part of the side wall and the top plate of the second-stage main body structure;
s4, chiseling a first-stage enclosure structure 1 with the height of the top of a first force transmission structure 4 being higher than the standard height, constructing a second force transmission structure 6 on the top of the rest first-stage enclosure structure 1, wherein the longitudinal section of the first force transmission structure 4 is L-shaped, the longitudinal section of the second force transmission structure 6 is rectangular, the second force transmission structure 6 and the first force transmission structure 4 are mutually embedded, and a fourth waterproof coiled material 701 is laid on the top of the second force transmission structure 6;
s5 makes it continuous with reliable overlap joint between first waterproofing membrane 201, fourth waterproofing membrane 701, second waterproofing membrane 401 and the third waterproofing membrane 501 to construction second bottom plate 7 on fourth waterproofing membrane 701, then build the post-cast part of second stage major structure side wall and roof back, construction joint department between first stage major structure 2 and the second bottom plate 7 is provided with slip casting pipe 704 and water stop glue 705 and does water repellent, accomplishes the construction of whole anti waterproof construction that floats.
The waterproof implementation needs to meet the relevant waterproof construction operation specifications and regulations.
After construction is completed, the first-stage enclosure structure 1 and the second force transmission structure 6 at the top of the enclosure structure form an enclosure structure which provides anti-buoyancy outside the waterproof coiled material, and the main ribs 101 and 601 are reliably connected; the primary main structure 2, the L-shaped first force transmission structure 4, the first bottom plate 5 and the second bottom plate 7 form a main structure which is connected with the waterproof roll and is subjected to buoyancy, and the four parts of structural steel bars 202, 402, 502 and 702 are reliably connected into a whole and participate in stress. The envelope and the main structure are connected without any steel bar, the force transmission is reliable and clear, the waterproof coiled material is continuously laid between the envelope and the main structure, and the waterproof effect is reliable.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. An anti-floating and waterproof structure of an underground building, characterized by comprising a first force transfer structure (4) and a second force transfer structure (6), wherein:
the first force transmission structure (4) and the second force transmission structure (6) are positioned at the interface of the adjacent first-stage main structure (2) and the second-stage main structure bottom plate, the bottom of the second-stage main structure is provided with a first bottom plate (5) and a second bottom plate (7) which are tightly connected, a first-stage enclosure structure (1) is arranged below the interface,
second power transmission structure (6) are located between first phase envelope (1) top and second bottom plate (7), second power transmission structure (6) longitudinal section is the rectangle, first bottom plate (5) below is provided with first power transmission structure (4), first power transmission structure (4) longitudinal section is the L type, first power transmission structure (4) one side is near first phase envelope (1), second power transmission structure (6) and the inseparable gomphosis of first power transmission structure (4), and second power transmission structure (6) first power transmission structure (4), lay waterproofing membrane between first power transmission structure (4) and second power transmission structure (6), this waterproofing membrane both sides extend with first phase major structure (2) and the peripheral waterproofing membrane overlap joint of second phase major structure form continuous whole.
2. The anti-floating waterproof structure according to claim 1, wherein a first waterproof coiled material (201) is laid between the first-stage main structure (2) and the first-stage enclosure structure (1), a fourth waterproof coiled material (701) is laid between the second force transmission structure (6) and the second bottom plate (7), a second waterproof coiled material (401) is laid at the bottom and the side of the first force transmission structure (4), a third waterproof coiled material (501) is laid at the bottom of the first bottom plate (5), and the first waterproof coiled material (201), the fourth waterproof coiled material (701), the second waterproof coiled material (401) and the third waterproof coiled material (501) are continuous and uninterrupted.
3. The anti-floating waterproof structure according to claim 2, characterized in that a rabbet construction joint (503) is arranged between the first bottom plate (5) and the second bottom plate (7), and a steel plate water stop (504) is further arranged at the rabbet construction joint (503).
4. An anti-floating waterproof structure as claimed in claim 3, characterized in that the construction joint between the primary structure (2) and the secondary bottom plate (7) is provided with a grouting pipe (704) and a water stop glue (705) for waterproof treatment.
5. A construction method of an anti-floating waterproof structure of an underground building is characterized by comprising the following steps:
s1, constructing a first-stage enclosure structure (1), digging a first-stage foundation pit in the first-stage enclosure structure (1), paving a first waterproof coiled material (201) in the first-stage foundation pit, and building a first-stage main structure (2) in a return mode;
s2, constructing a second-stage enclosure structure (3), excavating a second-stage foundation pit in the second-stage enclosure structure (3), excavating a foundation pit of a first force transmission structure (4) at the joint of the bottom of the second-stage foundation pit and the first-stage enclosure structure (1), paving a second waterproof coiled material (401) in the foundation pit of the first force transmission structure (4), and paving a third waterproof coiled material (501) at the bottom of a first bottom plate;
s3 building a first force transfer structure (4) and a first bottom plate (5) on the second waterproof coiled material (401) and the third waterproof coiled material (501) in a recycling mode, wherein the longitudinal section of the first force transfer structure (4) is of an L-shaped structure, and then building the first pouring parts of the side wall and the top plate of the second-stage main structure in a recycling mode;
s4, chiseling a first-stage enclosure structure (1) with the height of the top of the first force transmission structure (4) being more than the standard height, constructing a second force transmission structure (6) on the top of the rest first-stage enclosure structure (1), wherein the longitudinal section of the second force transmission structure (6) is a rectangular structure, enabling the second force transmission structure (6) and the first force transmission structure (4) to be mutually embedded, enabling the second force transmission structure (6) to press the first force transmission structure (4) in a back pressure mode, and laying a fourth waterproof coiled material (701) on the top of the second force transmission structure (6);
s5 reliable lapping among the first waterproof coiled material (201), the fourth waterproof coiled material (701), the second waterproof coiled material (401) and the third waterproof coiled material (501) is enabled to be continuous, a second bottom plate (7) is constructed on the fourth waterproof coiled material (701), then the post-pouring part of the side wall and the top plate of the second-stage main structure is built in a recycling mode, and the construction of the whole anti-floating waterproof structure is completed.
6. The construction method according to claim 5, wherein all the waterproofing membranes are thrown and rubbed at the joint and protected during construction.
7. The construction method according to claim 6, wherein a rabbet construction joint (503) is arranged between the first bottom plate (5) and the second bottom plate (7), and a steel plate water stop strip (504) is further arranged at the rabbet construction joint (503).
8. The construction method according to claim 7, wherein a grouting pipe (704) and a water-stop glue (705) are arranged at a construction joint between the primary main structure (2) and the secondary bottom plate (7) for waterproof treatment.
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| CN201710530333.9A CN107100208B (en) | 2017-06-29 | 2017-06-29 | Anti-floating waterproof structure of underground building and construction method |
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| CN108797653A (en) * | 2018-06-05 | 2018-11-13 | 中冶天工集团有限公司 | A kind of construction method carrying out structural anti-buoyancy using deep foundation pit fender post |
| CN109208937A (en) * | 2018-10-26 | 2019-01-15 | 中铁第勘察设计院集团有限公司 | The tongue-and-groove system and construction method of the not reserved anti-floating condition of subway station existing structure |
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| CN105421497B (en) * | 2015-09-14 | 2017-06-06 | 上海建工七建集团有限公司 | The waterproof construction method of sole plate and ground wall connecting node in combined fender construction system |
| CN105951846A (en) * | 2016-06-21 | 2016-09-21 | 中铁第四勘察设计院集团有限公司 | Baseplate force transferring structure of middle partition enclosure structure for deep foundation fit and construction method thereof |
| CN207092158U (en) * | 2017-06-29 | 2018-03-13 | 中铁第四勘察设计院集团有限公司 | A kind of anti-floating waterproof construction of underground structure |
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