CN108729475A - Underground structure multi-layer combined type expansion joint waterproof construction method - Google Patents
Underground structure multi-layer combined type expansion joint waterproof construction method Download PDFInfo
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- CN108729475A CN108729475A CN201710279488.XA CN201710279488A CN108729475A CN 108729475 A CN108729475 A CN 108729475A CN 201710279488 A CN201710279488 A CN 201710279488A CN 108729475 A CN108729475 A CN 108729475A
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- Prior art keywords
- layer
- expansion joint
- french drain
- waterproof
- waterproof roll
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
Abstract
The present invention relates to the arrangement of foundation structure seam or construction applications, specially a kind of underground structure multi-layer combined type expansion joint waterproof construction method.A kind of underground structure multi-layer combined type expansion joint waterproof construction method is included in underground structure (11) and is excavated to foundation trench face (12), it is characterized in that：Further include the steps that implementing successively as follows：A. french drain layer is excavated；B. plain concrete bed course is poured；C. first layer waterproof roll is completely spread；D., the copper coin that stretches is set；E., first of waterstop is set；F. setting steel is cut off；G., second waterstop is set；H. cystosepiment is completely spread；I. casting concrete；J. second layer waterproof roll is completely spread；K. making concrete leveling layer.Easy construction of the present invention, waterproof quality is high, is convenient for later maintenance, control cost input applied widely.
Description
Technical field
The present invention relates to the arrangement of foundation structure seam or construction applications, specially a kind of underground structure multi-layer combined type is stretched
Contracting seam waterproof construction method.
Background technology
Currently, China is in urbanization high-speed development period, construction of underground structure increasingly scale, complication, city are used
The development and utilization of the growing tension of ground resource, the underground space has become main trend.But during Underground Construction, such as
What ensures that structurally waterproof quality is a great problem of puzzlement construction.By geological conditions variation, ground cumulative settling and level of ground water
Influences, the underground structures such as variation just will appear infiltration, water leakage situation in the latter section of time limit that complete for use, especially stretched in structure
Contracting seam position is particularly evident.A large amount of now with domestic underground structure build and come into operation, and day occurs for structural leakage phenomenon
Become to increasing, the technological means of structure leak stopping is also more and more, but all palliative, can not be inherently eliminated leakage, and thing
Leak stopping is of a high price afterwards.Therefore, social development need is a kind of controls, can be controlled structural leakage from source in advance
Means.
Invention content
In order to overcome the deficiencies of existing technologies, provide a kind of easy construction, waterproof quality it is high, convenient for later maintenance, control
Cost input, basic seam construction applied widely, it is anti-that the invention discloses a kind of underground structure multi-layer combined type expansion joints
Water construction method.
The present invention reaches goal of the invention by following technical solution：
A kind of underground structure multi-layer combined type expansion joint waterproof construction method is included in underground structure and is excavated to foundation trench face, special
Sign is：Further include the steps that implementing successively as follows：
A. french drain layer is excavated：French drain layer is excavated on foundation trench face, french drain is buried in french drain layer as gutter, french drain includes
At least one lateral french drain and at least one longitudinal french drain, it is parallel to each other between lateral french drain, between longitudinal french drain
Parallel to each other, lateral french drain and longitudinal french drain interpenetrate, and at least a french drain imports the water inlet of pump house；French drain
Setting form there is no particular/special requirement, the quantity of setting, width that can be configured according to actual demand, only need to ensure finally to access
Pump house, french drain play first layer waterproof action；
B. plain concrete bed course is poured：Whole plain concrete bed course is poured on french drain, completely cuts off foundation trench face and structure base slab；Plain concrete bed course
Second layer waterproof action is played, while work surface is provided for subsequent Superstructure Construction；
C. first layer waterproof roll is completely spread：The waterproof roll of first layer is completely spread on plain concrete bed course；The waterproof roll of first layer rises
Third layer waterproof action；
D., the copper coin that stretches is set：Position setting perforation expansion joint at expansion joint and telescopic copper coin, the both ends difference of copper coin
It is placed in the outside of expansion joint both sides, is arched upward in expansion joint in the middle part of copper coin；Setting structure bottom plate on copper coin, adjacent structure
There are gaps to form expansion joint between bottom plate；Copper coin plays the 4th layer of waterproof action, while is arched upward in the middle part of copper coin at expansion joint two
The structure base slab of side can be stretched or be shunk in a certain range when counter motion occur or moving toward one another, and prevented copper coin to be squeezed and crushed
It is bad, it can still play waterproof action；
E., first of waterstop is set：In the top of copper coin, the middle buried water stop at first of perforation expansion joint is set；First
Middle buried water stop plays layer 5 waterproof action；
F. setting steel is cut off：The top setting steel of buried water stop is cut off in first, and steel is cut off including cylinder and sleeve,
Cylinder is embedded in a block structure bottom plate, and sleeve is embedded in adjacent structure base slab, and cylinder is sleeved in sleeve between the two formation
Gap coordinates and cylinder is slided along sleeve lining；When relative motion occurs for two adjacent block structure bottom plates, cylinder is along sleeve lining
Sliding, plays the role of certain anti-differential settlement；
G. setting second waterstop penetrates through the middle buried water stop at expansion joint in the top that steel is cut off setting second；Second
Buried water stop plays layer 6 waterproof action in road；
H. cystosepiment is completely spread：Certain vertical vertical interval must be ensured between each layer waterproof, it is ensured that concrete when pouring bottom plate
Can be fully closely knit, completely spread cystosepiment in vertical vertical interval, that is, expansion joint between every layer of waterproof；Cystosepiment is adjacent for being isolated
Two block structure bottom plates, avoid adjacent structure base slab from being in direct contact, while playing certain buffer protection function, prevent adjacent
Structure base slab be crushed because being squeezed；
I. casting concrete：Each road sealing by said sequence installation it is firm after, the casting concrete on structure base slab, waterstop
Position is reinforced vibrating, and ensures that each faying face is fully closely knit；
J. second layer waterproof roll is completely spread：The waterproof roll of the second layer is completely spread on the concrete that structure base slab pours；The second layer
Waterproof roll rise layer 7 waterproof action；
K. making concrete leveling layer：The making concrete leveling layer on second layer waterproof roll；Concrete leveling layer plays the 8th
Layer waterproof action.
The underground structure multi-layer combined type expansion joint waterproof construction method, it is characterized in that：
When step a, the depth of french drain layer is not less than 30cm；
When step b, the thickness of plain concrete bed course is not less than 10cm；
When step c and j, waterproof roll selects self-adhesive waterproof coiled material；
When step k, the thickness of concrete leveling layer is not less than 15cm.
The present invention reduces the possibility that leakage occurs from source, by horizontal drainage system and vertical combination water-proof system two
Part forms, and by reinforcing construction quality early period, reduces engineering structure later stage infiltration risk.The present invention keeps the formation of french drain layer horizontal
To drainage system, water body elicitation effect is played, reduces structure seepage pressure, the waterproof roll of first layer, copper coin bury in first
Formula waterstop, steel cut off, the middle buried water stop of second, cystosepiment, the waterproof roll of the second layer and concrete leveling layer shape
At vertical layered combination water-proof system, spatially multilayer flashing is realized, by horizontal and vertical three-dimensional combination waterproof technique, greatly
The big hidden danger of quality for reducing underground structure expansion joint leakage.
Beneficial effects of the present invention are as follows：
1. carrying out the waterproof project design at underground structure expansion joint using horizontal drainage system and vertical layered combination water-proof system
And construction, form multi layer waterproof, waterproof quality and with obvious effects；
2. the operations flow and construction technology that are related to are simple and clear, convenient for construction；
3. it is applied widely, it can be used for the waterproof construction of all types of construction of underground structures；
4. economy is strong, increased input by early period, avoids later stage pipe from supporting reprocessing during safeguarding, pass through the throwing of less cost
Enter, avoids the mending-leakage expense of follow-up costliness；
5. social effect is good, the good quality assurance of underground structure is the publicity to brand names, while being also avoided that and repairing repeatedly
The whole operation management difficulty brought increases.
Description of the drawings
Fig. 1 is that the schematic top plan view of french drain is arranged in foundation trench face in the present invention；
Fig. 2 is the schematic cross-section after the completion of the present invention.
Specific implementation mode
It is further illustrated the present invention below by way of specific embodiment.
Embodiment 1
A kind of underground structure multi-layer combined type expansion joint waterproof construction method, it is as depicted in figs. 1 and 2, real successively as follows
It applies：
A. french drain layer is excavated：As shown in Figure 1：It is excavated to foundation trench face 12 in underground structure 11, cutting depth is not on foundation trench face 12
French drain layer 21 less than 30cm, it includes at least one lateral that french drain 22 is buried in french drain layer 21 and is used as gutter, french drain 22
French drain 22 and at least one longitudinal french drain 22, it is parallel to each other between lateral french drain 22, it is mutually equal between longitudinal french drain 22
Row, lateral french drain 22 and longitudinal french drain 22 interpenetrate, and at least a french drain 22 imports the water inlet of pump house 13；It is blind
The setting form of ditch 22 does not have particular/special requirement, the quantity of setting, width that can be configured according to actual demand, need to only ensure final
Pump house 13 is accessed, french drain 22 plays first layer waterproof action；
B. plain concrete bed course is poured：The plain concrete bed course 3 that whole thickness is not less than 10cm, isolation foundation trench face 12 are poured on french drain 2
With structure base slab 14；Plain concrete bed course 3 plays second layer waterproof action, while providing work surface for subsequent Superstructure Construction；
C. first layer waterproof roll is completely spread：The waterproof roll 4 of first layer is completely spread on plain concrete bed course 3, waterproof roll 4 is selected certainly
Viscous formula waterproof roll；The waterproof roll 4 of first layer plays third layer waterproof action；
D., the copper coin that stretches is set：Position setting perforation expansion joint 15 at expansion joint 15 and telescopic copper coin 5, the two of copper coin 5
End is respectively placed in the outside of 15 both sides of expansion joint, and the middle part of copper coin 5 is arched upward in expansion joint 15；Setting structure bottom on copper coin 5
Plate 14, there are gaps to form expansion joint 15 between adjacent structure base slab 14；Copper coin 5 plays the 4th layer of waterproof action, while copper coin 5
The structure base slab 14 that arches upward in 15 both sides of expansion joint of middle part can draw in a certain range when counter motion occur or moving toward one another
It stretches or shrinks, copper coin 5 is prevented to be extruded destruction, can still play waterproof action；
E., first of waterstop is set：In the top of copper coin 5, the middle buried water stop 6 at first of perforation expansion joint 15 is set；The
Buried water stop 6 plays layer 5 waterproof action in together；
F. setting steel is cut off：The top setting steel of buried water stop 6 cuts off 7 in first, and it includes 71 He of cylinder that steel, which cuts off 7,
Sleeve 72, cylinder 71 are embedded in a block structure bottom plate 14, and sleeve 15 is embedded in adjacent structure base slab 14, and cylinder 71 is sleeved on
Clearance fit is formed both in sleeve 72 and cylinder 71 is slided along 72 inner wall of sleeve；When phase occurs for two adjacent block structure bottom plates 14
When to movement, cylinder 71 is slided along 72 inner wall of sleeve, plays the role of certain anti-differential settlement；
G. setting second waterstop cuts off the middle buried water stop 6 at 7 top setting second perforation expansion joint 15 in steel；
Buried water stop 6 plays layer 6 waterproof action in second；
H. cystosepiment is completely spread：Certain vertical vertical interval must be ensured between each layer waterproof, it is ensured that concrete when pouring bottom plate
Can be fully closely knit, completely spread cystosepiment 8 made of polyethylene in vertical vertical interval, that is, expansion joint 15 between every layer of waterproof；Foam
Plate 8 avoids adjacent structure base slab 14 from being in direct contact, while playing certain delay for two adjacent block structure bottom plates 14 to be isolated
Protective effect is rushed, adjacent structure base slab 14 is prevented to be crushed because being squeezed；
I. casting concrete：Each road sealing by said sequence installation it is firm after, the casting concrete on structure base slab 14, sealing
Band position is reinforced vibrating, and ensures that each faying face is fully closely knit；
J. second layer waterproof roll is completely spread：The waterproof roll 4 of the second layer is completely spread on the concrete that structure base slab 14 pours；The
Two layers of waterproof roll 4 plays layer 7 waterproof action；
K. making concrete leveling layer：Placement thickness is not less than the concrete leveling layer 9 of 15cm on second layer waterproof roll 4；
Concrete leveling layer 9 plays the 8th layer of waterproof action.
Section after the completion of the present embodiment is as shown in Figure 2.
The present embodiment reduces the possibility that leakage occurs from source, by horizontal drainage system and vertical combination water-proof system
Two parts form, and by reinforcing construction quality early period, reduce engineering structure later stage infiltration risk.The present invention makes the formation of french drain layer 21
Horizontal direction drainage system plays water body elicitation effect, reduces structure seepage pressure, waterproof roll 4, the copper coin 5, first of first layer
Buried water stop 6, steel cut off the waterproof roll 4 and coagulation of the middle buried water stop 6 of 7, second, cystosepiment 8, the second layer in road
Native leveling layer 9 forms vertical layered combination water-proof system, realizes spatially multilayer flashing, is combined by horizontal and vertical solid
Waterproof technique greatly reduces the hidden danger of quality of underground structure expansion joint leakage.
Claims (2)
1. a kind of underground structure multi-layer combined type expansion joint waterproof construction method is included in underground structure (11) and is excavated to foundation trench face
(12), it is characterized in that：Further include the steps that implementing successively as follows：
A. french drain layer is excavated：French drain layer (21) is excavated on foundation trench face (12), and french drain (22) conduct is buried in french drain layer (21)
Gutter, french drain (22) include at least one lateral french drain (22) and at least one longitudinal french drain (22), lateral french drain
(22) parallel to each other between, parallel to each other between longitudinal french drain (22), the french drain (22) of lateral french drain (22) and longitudinal direction is mutual
It connects, at least a french drain (22) imports the water inlet of pump house (13)；
B. plain concrete bed course is poured：Whole plain concrete bed course (3) is poured on french drain (2), completely cuts off foundation trench face (12) and structure base slab
(14)；
C. first layer waterproof roll is completely spread：The waterproof roll (4) of first layer is completely spread on plain concrete bed course (3)；
D., the copper coin that stretches is set：In position setting perforation expansion joint (15) of expansion joint (15) and telescopic copper coin (5), copper
The both ends of plate (5) are respectively placed in the outside of expansion joint (15) both sides, arch upward in the middle part of copper coin (5) in expansion joint (15)；Copper
Setting structure bottom plate (14) on plate (5), there are gaps to form expansion joint (15) between adjacent structure base slab (14)；
E., first of waterstop is set：In the top of copper coin (5), the middle buried water stop of first of perforation expansion joint (15) is set
(6)；
F. setting steel is cut off：The top setting steel of buried water stop (6) is cut off (7) in first, and it includes column that steel, which cuts off (7),
Body (71) and sleeve (72), cylinder (71) are embedded in a block structure bottom plate (14), and sleeve (15) is embedded in adjacent structure bottom
In plate (14), cylinder (71) is sleeved on the two formation clearance fit in sleeve (72) and cylinder (71) is slided along sleeve (72) inner wall；
G., second waterstop is set：The top setting second that (7) are cut off in steel penetrates through buried sealing in expansion joint (15)
Band (6)；
H. cystosepiment is completely spread：Cystosepiment (8) is completely spread in expansion joint (15)；
I. casting concrete：The casting concrete on structure base slab (14) ensures that each faying face is fully closely knit；
J. second layer waterproof roll is completely spread：The waterproof roll of the second layer is completely spread on the concrete that structure base slab (14) pours
(4)；
K. making concrete leveling layer：The making concrete leveling layer (9) on second layer waterproof roll (4).
2. underground structure multi-layer combined type as described in claim 1 expansion joint waterproof construction method, it is characterized in that：
When step a, the depth of french drain layer (21) is not less than 30cm；
When step b, the thickness of plain concrete bed course (3) is not less than 10cm；
When step c and j, waterproof roll (4) selects self-adhesive waterproof coiled material；
When step k, the thickness of concrete leveling layer (9) is not less than 15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710279488.XA CN108729475A (en) | 2017-04-25 | 2017-04-25 | Underground structure multi-layer combined type expansion joint waterproof construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710279488.XA CN108729475A (en) | 2017-04-25 | 2017-04-25 | Underground structure multi-layer combined type expansion joint waterproof construction method |
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| CN108729475A true CN108729475A (en) | 2018-11-02 |
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| CN201710279488.XA Pending CN108729475A (en) | 2017-04-25 | 2017-04-25 | Underground structure multi-layer combined type expansion joint waterproof construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029628A (en) * | 2019-05-24 | 2019-07-19 | 郑州水务建筑工程股份有限公司 | A kind of water conservancy project raft plate dilatation joint waterproof structure |
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| CN2809018Y (en) * | 2005-08-05 | 2006-08-23 | 上海市隧道工程轨道交通设计研究院 | Combination type mounting structure for water stop |
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| CN204982640U (en) * | 2015-07-07 | 2016-01-20 | 山西省交通科学研究院 | Bridge expansion joint is with anti -shearing elasticity rubber support |
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2017
- 2017-04-25 CN CN201710279488.XA patent/CN108729475A/en active Pending
Patent Citations (5)
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| CN2809018Y (en) * | 2005-08-05 | 2006-08-23 | 上海市隧道工程轨道交通设计研究院 | Combination type mounting structure for water stop |
| CN202830739U (en) * | 2012-10-16 | 2013-03-27 | 中铁十局集团有限公司 | Frame bridge inducing joint structure |
| CN104420485A (en) * | 2013-08-21 | 2015-03-18 | 中国二十冶集团有限公司 | Underground space leaking type water stopping method for utility tunnel |
| CN204982640U (en) * | 2015-07-07 | 2016-01-20 | 山西省交通科学研究院 | Bridge expansion joint is with anti -shearing elasticity rubber support |
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Non-Patent Citations (1)
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| CN110029628A (en) * | 2019-05-24 | 2019-07-19 | 郑州水务建筑工程股份有限公司 | A kind of water conservancy project raft plate dilatation joint waterproof structure |
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Application publication date: 20181102 |