CN107542115A - Underground project waterproof structure and its construction method - Google Patents
Underground project waterproof structure and its construction method Download PDFInfo
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- CN107542115A CN107542115A CN201710743969.1A CN201710743969A CN107542115A CN 107542115 A CN107542115 A CN 107542115A CN 201710743969 A CN201710743969 A CN 201710743969A CN 107542115 A CN107542115 A CN 107542115A
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Abstract
The invention discloses a kind of underground project waterproof structure and its construction method, waterproof construction to be：Building enclosure is set in the side wall for digging foundation ditch in advance, concrete cushion is set in foundation ditch bottom surface, template is fixedly connected with the building enclosure medial surface, waterproof roll layer is set on the template medial surface and concrete cushion；Construction method includes：S1. building enclosure, excavation pit are performed in the side wall for digging foundation ditch in advance；S2. in bottom of foundation ditch casting concrete bed course；S3. the fixed form on the inside of building enclosure, the laying water-proof coiled material layer on the inside of template；S4. the laying water-proof coiled material layer on concrete cushion；Waterproof slab protective layer is poured on waterproof roll layer；S5. it is configured lower project subject structure on the inside of the waterproof roll layer of side wall and above waterproof slab protective layer.The waterproof construction progress of underground engineering can be accelerated by the present invention, reduce comprehensive cost cost, improve the safety coefficient of operation in underground engineering foundation ditch.
Description
Technical field
The present invention relates to Construction Technique of Underground Works field, particularly a kind of underground project waterproof structure and its construction party
Method.
Background technology
Underground engineering, refer to the engineering that various types of underground structures or structure are built in below ground soil layer or rock mass.
It includes：Underground railway, tunnel, parking lot, underground commercial center, people's air defence, basement and piping lane etc..With city capital construction not
Disconnected development, because the construction and use of underground engineering greatly increase the utilization rate of land use, therefore, underground engineering
Using waterproof problem that is more and more extensive, but being also faced with underground engineering simultaneously.Underground project waterproof is whole construction quality
One key content, if the underground project waterproof structure without excellent sealing, it will cause the seepage of underground water, it is this long-term
Seepage can corrode bar construction in building concrete, and then would necessarily affect concrete building structures durability,
Security and use function.Therefore, underground waterproof structure is carried out to be necessary.
The common method of current underground waterproof engineering construction has outer anti-outer patch method and outer anti-interior patch method, and outer anti-outer patch method is
Treat structure abutment wall（Reinforced concrete structure exterior wall）After the completion of construction, directly coil waterproof layer is attached on abutment wall（I.e. underground is tied
Structure wall upstream face）, finally make the protective layer of coil waterproof layer；Outer anti-interior patch method is that construction is preceding first builds protection wall inside foundation ditch,
Then coil waterproof layer is attached on protection wall, the method for finally pouring into a mould side wall concrete.Execution conditions are typically due to be limited
System, no operating space, when outer anti-outer patch method construction is difficult to carry out, using outer anti-interior patch waterproof construction method.
When actual Waterproofing Technology of Underground Works is using outer anti-interior patch, conventional method typically has two kinds：（1）Done in foundation pit side-wall
Steel sheet pile enclosure structure or concrete building enclosure, and the brick laid on edge fetal membrane in concrete building enclosure, fetal membrane of laying bricks will pass through
Paving blinding layer, numerous and diverse process such as build, plaster by laying bricks or stones；This process it is easily caused following problem：A. build by laying bricks or stones brick fetal membrane, plaster needed for
Long construction period；B. brick fetal membrane material requested cost and cost of labor are high；C. because long construction period, foundation ditch expose for a long time,
Easily there is the problem of uplift of soil in foundation ditch, adds the unstability factor of foundation pit enclosure structure；（2）Knot is gone along with sb. to guard him in concrete
Side wall screed-coat is performed on the inside of structure, then waterproof roll is fixed in process layer by steel nail, such as Application No.
201610230067.3 application for a patent for invention " a kind of construction method of Large Underground waterproofing work pre-installed and inverted adhered waterproof roll ",
This method is disclosed, the fetal membrane although invention need not lay bricks, reduces process, still needs to perform process layer, i.e. side wall
Screed-coat, to fill up gap or the groove between concrete building enclosure, there are the following problems for this engineering method：A. process layer needs
Carried out with pea gravel concreten or mortar repeatedly levelling, can be only achieved levelling effect, and can not be too thick, it is otherwise easily de-
Fall, such speed of application is slow, and cost is artificial more, and long construction period, adds the unstability of foundation pit enclosure structure
Factor；B. waterproof roll is fixed in process layer by steel nail, can also causes the destruction to waterproof roll, and then influenceed complete close
Seal waterproof effect.
The content of the invention
The invention discloses a kind of underground project waterproof structure and its construction method, the waterproof construction of underground engineering can be accelerated
Progress, comprehensive cost cost is reduced, improve safety work coefficient in underground engineering foundation ditch.
To achieve the above object, the technical scheme is that：
Building enclosure is set in the side wall for digging foundation ditch in advance, concrete cushion is set in foundation ditch bottom surface, on the inside of the building enclosure
Face is fixedly connected with template, and waterproof roll layer is set on the template medial surface and concrete cushion；
The template is the template of non-wall, can include but is not limited to plastic formwork, wooden form and steel template, the mould
The medial surface of plate fits with waterproof roll layer.
Further, the building enclosure is steel sheet pile enclosure structure or concrete building enclosure, and the concrete is gone along with sb. to guard him
Structure is one kind or two in diaphram wall, piles in row, borehole perfusion campshed, concrete sheet-piling and SMW engineering method stakes
Kind.The mode that template is connected with concrete building enclosure can use it is existing it is conventional be fixedly connected with mode, such as connected by steel nail
Connect.
Further, the building enclosure is steel sheet pile enclosure structure, between the steel sheet pile enclosure structure and template also
It is provided with separation layer.Further, the separation layer is made up of cystosepiment.
Preferably, inner support is arranged with the groove of the steel sheet pile enclosure structure, the template passes through the first fixture
It is fixed on through template in inner support.Present invention also offers a kind of preferred structure of inner support, the inner support includes stull
With perpendicular support, the stull is provided with more than 2, and stull both ends are tightly stuck in steel sheet pile enclosure texture grooves inwall respectively；It is described perpendicular
Support is fixedly connected on the inner side of stull, and the convex surface of steel sheet pile enclosure structure concordant with the convex surface of steel sheet pile enclosure structure/prominent
The convex surface that steel sheet pile enclosure structure is depressed in no more than 5cm/ is no more than 20cm.
Further, screed-coat, the waterproof roll layer are additionally provided between concrete cushion and the waterproof roll layer
Including at least one layer of waterproof roll；Waterproof slab protective layer is provided with waterproof roll layer above the concrete cushion；Institute
State and other foundation ditches conventional peripheral precipitation or water sealing structure, the peripheral precipitation are also provided with the inside or outside of building enclosure
Or water sealing structure is well casing or water-stop curtain.
Further, the concrete building enclosure being connected with the template be piles in row, borehole irrigate campshed or
During SMW engineering method stakes, the template-setup has more than two pieces, and connection member company is provided between horizontally-spliced template lateral surface
Connect, the connection member is inserted in the gap of concrete building enclosure.Further, the connection member can be connection
Square bar.
Present invention also offers a kind of method constructed using above-described underground project waterproof structure, including with
Lower step：
S1. building enclosure is performed in the side wall for digging foundation ditch in advance, then excavation pit, and the supporting construction of building enclosure, base are set
Hole is excavated to designed elevation；
S2. in bottom of foundation ditch casting concrete bed course, the levelling of pea gravel concreten or cement mortar is poured on concrete cushion
Layer；
S3. template is fixedly mounted on the inside of building enclosure, the laying water-proof coiled material layer on the inside of template；
S4. the laying water-proof coiled material layer on concrete cushion；Bottom plate is poured on waterproof roll layer on concrete cushion
Fish tail and waterproof layer；
S5. it is configured lower project subject structure on the inside of the waterproof roll layer of side wall and above waterproof slab protective layer.
Further, when the building enclosure is steel sheet pile enclosure structure, the step S3 includes following sub-step：
S3-1. interval is caught in the stull of more than 2 in steel sheet pile enclosure texture grooves, then the vertical fixed peace on the inside of stull
The perpendicular support of dress；
S3-2. separation layer is laid on the inside of steel sheet pile enclosure structure；
S3-3. template is laid on the inside of separation layer, and template and separation layer are passed through using the first fixture, template is fixedly mounted
In perpendicular support；
S3-4. the laying water-proof coiled material layer on the inside of template.
Further, when the concrete building enclosure being connected with the template is piles in row, borehole perfusion campshed
Or during SMW engineering method stakes, the step S3 includes following sub-step：
First template is fixed together with connection member, then template is layed in the medial surface of concrete building enclosure,
The connection member of template is inserted in the gap of concrete building enclosure, is then fixedly mounted on template by the second fixture
In concrete building enclosure；The laying water-proof coiled material layer on the inside of template.
Use above-described underground project waterproof structure and to realize construction method that the structure uses, have with
Lower beneficial effect：
1st, due to being provided with template on the inside of building enclosure, waterproof roll is enable to be directly adhered in template, therefore eliminate brick
Process needed for fetal membrane or side wall construction of leveling blanket, the waterproof construction cycle of underground engineering is shortened, reduces underground engineering
Material cost and cost of labor.
2nd, because the construction period of waterproof construction shortens, reduce the open-assembly time of foundation ditch, be advantageous to safeguard the steady of foundation ditch
It is qualitative, improve the safety coefficient of operation in hole.
3rd, template and cystosepiment wide material sources, cost are cheap used by constructing；
4th, waterproof roll is pasted in the template fixed, without using steel nail or other fixtures to carry out waterproof roll again
It is fixed, avoid waterproof roll and wreck, so as to further ensure the waterproof effect of good seal.
5th, have because its is simple to operate, cost is cheap, contrasts traditional construction efficiency and significantly improve, therefore with extensive
Promotion prospect.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Fig. 3 is the structural representation of the inner support of the embodiment of the present invention 1.
Fig. 4 is the structural representation of the connection member of the embodiment of the present invention 2.
In figure, building enclosure 1, concrete cushion 2, screed-coat 3, waterproof roll layer 4, structure sheaf 5, template 6, separation layer 7,
Waterproof slab protective layer 8, erect support 9, stull 10, connecting square strip 11.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention be not limited to it is following
Embodiment.
The signified underground engineering of following examples can be piping lane, basement, underground commercial center, people's air defence or be river
Subaqueous tunnel under bed.
Medial surface described in following examples, be a relative concept, i.e., with respect to foundation ditch for, residing for building enclosure
Position is the periphery of Waterproof structural course, progressively sets Waterproof structural course to the inside of foundation ditch successively, and Waterproof structural course is towards foundation ditch
The one side at center is medial surface.
Embodiment 1
With reference to shown in Fig. 1, a kind of underground project waterproof structure, building enclosure 1 is set in the side wall for digging foundation ditch in advance, in foundation ditch bottom surface
Concrete cushion 2 is set, template 6 is fixedly connected with the medial surface of building enclosure 1, on the medial surface of template 6 and concrete cushion 2
Paste waterproof roll layer 4.Template 6 is the template of non-wall.
In the present embodiment, building enclosure 1 is using steel sheet pile enclosure structure.During to prevent from dismantling steel sheet pile enclosure structure
Template 6 can be disturbed, separation layer 7 is additionally provided between template 6 and steel sheet pile enclosure structure, the separation layer of the present embodiment is foam
Sheet material matter, the cystosepiment are first laid on the inner side of steel sheet pile enclosure structure, then fixed form 6 on the inside of cystosepiment again.
For the template 6 that the present embodiment uses for wooden form, the medial surface of template 6 is even curface, energy and waterproof roll
Layer 4 preferably fits.Wooden form can substitute traditional brick fetal membrane well, and providing one for laying water-proof coiled material layer puts down
Whole adhesive surface, be securely bonded to waterproof roll layer together with, build brick fetal membrane process by laying bricks or stones so as to eliminate, reduce material
Cost and cost of labor, and waterproof construction progress is accelerated, foundation ditch open-assembly time is reduced, maintains the stabilization of foundation ditch well
Property, safety work coefficient in hole is improved, while lay that template process is simple, and cost is cheap, it is easy to accomplish.Wooden form also may be used
To be substituted using plastic formwork, steel template.
Template 6 will not produce displacement during to realize the dismounting of steel sheet pile enclosure structure, and the present embodiment, which preferably uses, to be easy to carry out
The fixed form of separation is dismantled, with reference to shown in Fig. 3, is arranged with inner support in the groove of steel sheet pile enclosure structure, template 6 passes through the
One fixture is fixedly mounted in inner support 1 through template 6 and separation layer 7, and the first fixture that the present embodiment uses is nail
Son.A kind of preferred structure of inner support, including stull 10 and perpendicular support 9 are present embodiments provided, stull 10 is provided with more than 2,
The both ends of stull 10, which are respectively separated, is tightly stuck in steel sheet pile enclosure texture grooves inwall, and a fixed support is provided for perpendicular support 9；Perpendicular support 9
Interval is fixedly connected on the inner side of stull 10, and it is concordant with the convex surface of steel sheet pile enclosure structure that perpendicular support 9 is optimal, but can also have
Certain Engineering Error scope, i.e., the convex surface of prominent steel sheet pile enclosure structure are no more than 5cm or are depressed in steel sheet pile enclosure structure
Convex surface be no more than 20cm.To be cost-effective, perpendicular support 9 and stull 10 can be made of the lumps of wood, can be led between perpendicular support 9 and stull 10
Nail is crossed to be fixed together.
Further, screed-coat 3 is also equipped between concrete cushion 2 and waterproof roll layer 4, screed-coat 3 can use
Pea gravel concreten or cement mortar, screed-coat 3 can help the smooth paving of waterproof roll layer 4 in foundation ditch bottom surface.Waterproof roll layer
, can 2 layers or 3 layers waterproof roll of paving according to design requirement including at least one layer of waterproof roll.It is anti-on concrete cushion
Waterproof slab protective layer is provided with water coiled material layer, to damage waterproof roll when preventing underground engineering main structure construction.
Further, to strengthen water-stagnating effect, it is outer that the inner or outer side of building enclosure 1 can also set other foundation ditches to commonly use
Precipitation or water sealing structure are enclosed, such as water-stop curtain, well casing precipitation does interim dewatering and drainage.
The waterproof roofing structure of the underground engineering agent structure of the present embodiment can use existing conventional waterproof roofing structure.
The method constructed using above-described underground project waterproof structure, is comprised the following steps：
S1. building enclosure 1 is performed in the side wall for digging foundation ditch in advance, building enclosure 1 is steel sheet pile enclosure structure in the present embodiment, that is, is pressed
More solito construction method first performs steel sheet pile enclosure structure；Then excavation pit, and the support system of building enclosure is set, prevent
Displacement and deformation, make building enclosure more firm, the situation in case of needed precipitation, according to conventional construction method in steel sheet pile enclosure knot
Well casing or water-stop curtain is set to carry out dewatering and drainage on the inside or outside of structure, then by excavation of foundation pit to designed elevation；
S2. in bottom of foundation ditch casting concrete bed course 2, the levelling of pea gravel concreten or cement mortar is poured on concrete cushion
Layer；
S3. the junction of the fixed installation template 6 on the inside of building enclosure 1, template 6 and concrete cushion 2 uses pea gravel concreten
Or cement mortar fills into the transition face of circular arc, so that waterproof roll is preferably submissive in transition junction, spread in the inner side of template 6
Set up defences water coiled material layer 4, i.e., be pasted onto waterproof roll is smooth in template；
S4. the laying water-proof coiled material layer 4 on concrete cushion 2, and poured on the waterproof roll layer 4 on concrete cushion
Waterproof slab protective layer 8；
S5. underground work is performed on the inside of the waterproof roll layer of side wall and above waterproof slab protective layer according to conventional construction method
Journey agent structure, the structure sheaf 5 shown in figure are the partial structurtes of underground engineering agent structure；Perform waterproof roofing structure；Return
Fill out foundation ditch；Extract steel sheet pile enclosure structure.
Wherein, step S3 includes following sub-step：
S3-1. interval is caught in the stull 10 of more than 2 in steel sheet pile enclosure texture grooves, then vertical solid in the inner side of stull 10
The perpendicular support 9 of Dingan County's dress；
S3-2. separation layer 7 is laid on the inside of steel sheet pile enclosure structure；
S3-3. in the inner side of separation layer 7 laying template 6, and template 6 and separation layer 7 are passed through using the first fixture, the present embodiment is adopted
First fixture is nail, template 6 is fixedly mounted in perpendicular support 9；Then in the connection of template 6 and concrete cushion 2
Place fills into the transition face of circular arc using pea gravel concreten or cement mortar；
S3-4. in the inner side laying water-proof coiled material layer of template 6, i.e., waterproof roll is pasted onto in template 6.
Embodiment 2
With reference to shown in Fig. 2, a kind of underground project waterproof structure, building enclosure 1 is set in the side wall for digging foundation ditch in advance, in foundation ditch bottom surface
Concrete cushion 2 is set, template 6 is fixedly connected with the medial surface of building enclosure 1, on the medial surface of template 6 and concrete cushion 2
Paste waterproof roll layer 4 in face.Template 6 is the template of non-wall.
In the present embodiment, building enclosure 1 is more specifically ground using concrete building enclosure, concrete building enclosure
One kind or two in lower diaphragm wall or piles in row, borehole perfusion campshed, concrete sheet-piling and SMW engineering method stakes
Kind.Template 6 uses plastic formwork, and the medial surface of template 6 is even curface, can preferably be fitted with waterproof roll layer 4, modeling
Material template 6 can be fixedly mounted on the medial surface of concrete building enclosure by the second fixture, and the second of the present embodiment use is solid
It is nail to determine part.Plastic formwork can substitute brick fetal membrane or the side wall screed-coat of building enclosure very well, be laying water-proof coiled material layer 4
A smooth stickup plane is provided, brick fetal membrane is built by laying bricks or stones so as to eliminate or performs building enclosure side wall screed-coat process,
Material cost and cost of labor are reduced, accelerates waterproof construction progress, so as to reduce foundation ditch open-assembly time, is safeguarded well
The stability of foundation ditch, improve safety work coefficient in hole.In addition, because waterproof roll layer can be affixed directly in template, avoid
The destruction to caused by waterproof roll, ensures that hermetically sealed waterproof effect by the way of steel nail fixation.Plastic formwork
It can also be substituted using wooden form, steel template.
When the concrete building enclosure being connected with template is piles in row, borehole perfusion campshed or SMW engineering method stakes,
Larger gap is typically had between pile body, when template 6 is provided with more than two pieces, when the horizontal piece junction of template 6 is located at
When between the gap of concrete building enclosure, to make the connection of template 6 more firm, the horizontally-spliced lateral surface of template 6 it
Between set connection member to be attached, to be cost-effective, connection member that the present embodiment is selected is connecting square strip 11, connecting square strip
Optimal 11 length is that can be inserted in the gap of concrete building enclosure.The present embodiment can be protected by setting up connecting square strip 11
The stability and planarization combined between card template 6.
Further, screed-coat 3 is also equipped between concrete cushion 2 and waterproof roll layer 4, screed-coat 3 can use
Pea gravel concreten or cement mortar are made, and screed-coat 3 can help the more smooth paving of waterproof roll layer 4 in foundation ditch bottom surface.Waterproof
Coiled material layer comprises at least one layer of waterproof roll, can 2 layers or 3 layers waterproof roll of paving according to design requirement.On concrete cushion
Waterproof slab protective layer is provided with the waterproof roll layer in face, waterproof volume is damaged during preventing underground engineering main structure construction
Material.
Further, to strengthen water-stagnating effect, it is outer that the inner or outer side of building enclosure 1 can also set other foundation ditches to commonly use
Precipitation or water sealing structure are enclosed, such as water-stop curtain, well casing precipitation does interim dewatering and drainage.
The waterproof roofing structure of the underground engineering agent structure of the present embodiment can use existing conventional waterproof roofing structure.
The method constructed using above-described underground project waterproof structure, is comprised the following steps：
S1. building enclosure 1 is conventionally first performed in the side wall for digging foundation ditch in advance, building enclosure 1 is coagulation in the present embodiment
Fortifield village's protection structure 1；Then excavation pit, and the support system of building enclosure is set, displacement and deformation are prevented, makes building enclosure more
It is firm, the situation in case of needed precipitation, well casing or water-stop curtain is set outside concrete building enclosure according to conventional construction method
Dewatering and drainage is carried out, then by excavation of foundation pit to designed elevation；
S2. in bottom of foundation ditch casting concrete bed course 2, looking for for pea gravel concreten or cement mortar is poured on concrete cushion
Flat bed；
S3. it is thin by fixation steel nail installation form 6, the junction use of template 6 and concrete cushion 2 in the inner side of building enclosure 1
Stone concrete or cement mortar fill into the transition face of circular arc, so that waterproof roll is preferably submissive in transition junction, in mould
Waterproof roll, i.e., be pasted onto in template 6 by the inner side laying water-proof coiled material layer 4 of plate 6；
S4. the laying water-proof coiled material layer 4 on concrete cushion 2, and poured on the waterproof roll layer 4 on concrete cushion
Build waterproof slab protective layer 8；
S5. underground work is performed on the inside of the waterproof roll layer of side wall and above waterproof slab protective layer according to conventional construction method
Journey agent structure, the structure sheaf 5 shown in figure are the partial structurtes of underground engineering agent structure；Waterproof roofing structure is performed, is returned
Fill out foundation ditch；When backfilling foundation ditch, the gap that can be filled up between template 6 and concrete building enclosure is expected in backfill.
When the concrete building enclosure being connected with template is piles in row, borehole perfusion campshed or SMW engineering method stakes,
Step S3 includes following sub-step：
First template 6 is fixed together with connecting square strip 11, then template is layed in the inner side of concrete building enclosure
Face, the connecting square strip 11 of the horizontal edge joint position of template are inserted in the gap of concrete building enclosure, are then fixed by second
Template is fixedly mounted in concrete building enclosure by part；The second fixture that the present embodiment uses is steel nail；On the inside of template
Laying water-proof coiled material layer.
If what is be connected with template is diaphram wall or concrete sheet-piling, without gap, it may be unnecessary to which extra installation connects
Relay part.
Claims (10)
- A kind of 1. underground project waterproof structure, it is characterised in that：Building enclosure is set in the side wall for digging foundation ditch in advance, concrete cushion is set in foundation ditch bottom surface, on the inside of the building enclosure Face is fixedly connected with template, and waterproof roll layer is set on the template medial surface and concrete cushion；The template is the template of non-wall, and medial surface and the waterproof roll layer of the template fit.
- 2. underground project waterproof structure according to claim 1, it is characterised in that：The building enclosure is steel sheet pile enclosure structure or concrete building enclosure, and the concrete building enclosure is that underground is continuous One or both of wall, piles in row, borehole perfusion campshed, concrete sheet-piling and SMW engineering method stakes.
- 3. underground project waterproof structure according to claim 2, it is characterised in that：The building enclosure is steel sheet pile enclosure structure, and separation layer is additionally provided between the steel sheet pile enclosure structure and template.
- 4. underground project waterproof structure according to claim 3, it is characterised in that：The separation layer is made up of cystosepiment.
- 5. the underground project waterproof structure according to Claims 2 or 3, it is characterised in that：Inner support is arranged with the groove of the steel sheet pile enclosure structure, the template is fixed by the first fixture through template In inner support.
- 6. underground project waterproof structure according to claim 5, it is characterised in that：The inner support includes stull and perpendicular support, and the stull is provided with more than 2, and stull both ends are tightly stuck in steel sheet pile and enclosed respectively Protection structure groove inner wall；The perpendicular support is fixedly connected on the inner side of stull, and concordant with the convex surface of steel sheet pile enclosure structure/prominent The convex surface that the convex surface of steel sheet pile enclosure structure is depressed in steel sheet pile enclosure structure no more than 5cm/ is no more than 20cm.
- 7. underground project waterproof structure according to claim 1, it is characterised in that：Screed-coat is additionally provided between concrete cushion and the waterproof roll layer, the waterproof roll layer, which comprises at least one layer, to be prevented Water coiled material；Waterproof slab protective layer is provided with waterproof roll layer above the concrete cushion；Peripheral precipitation or water sealing structure are additionally provided with the inside or outside of the building enclosure, the peripheral precipitation or water sealing structure are Well casing or water-stop curtain.
- 8. underground project waterproof structure according to claim 2, it is characterised in that：When the concrete building enclosure being connected with the template is piles in row, borehole perfusion campshed or SMW engineering method stakes, institute Stating template-setup has more than two pieces, and connection member connection, the connection member are provided between horizontally-spliced template lateral surface It is inserted in the gap of concrete building enclosure.
- 9. the method constructed using underground project waterproof structure as claimed in claim 1, it is characterised in that including following Step：S1. building enclosure is performed in the side wall for digging foundation ditch in advance, then excavation pit, and the supporting construction of building enclosure, base are set Hole is excavated to designed elevation；S2. in bottom of foundation ditch casting concrete bed course, the levelling of pea gravel concreten or cement mortar is poured on concrete cushion Layer；S3. template is fixedly mounted on the inside of building enclosure, the laying water-proof coiled material layer on the inside of template；S4. the laying water-proof coiled material layer on concrete cushion；Bottom plate is poured on waterproof roll layer on concrete cushion Fish tail and waterproof layer；S5. it is configured lower project subject structure on the inside of the waterproof roll layer of side wall and above waterproof slab protective layer.
- 10. construction method as claimed in claim 9, it is characterised in that：When the building enclosure is steel sheet pile enclosure structure, the step S3 includes following sub-step：S3-1. interval is caught in the stull of more than 2 in steel sheet pile enclosure texture grooves, then the vertical fixed peace on the inside of stull The perpendicular support of dress；S3-2. separation layer is laid on the inside of steel sheet pile enclosure structure；S3-3. template is laid on the inside of separation layer, and template and separation layer are passed through using the first fixture, template is fixedly mounted In perpendicular support；S3-4. the laying water-proof coiled material layer on the inside of template；When the concrete building enclosure being connected with the template is piles in row, borehole perfusion campshed or SMW engineering method stakes, The step S3 includes following sub-step：First template is fixed together with connection member, then template is layed in the medial surface of concrete building enclosure, The connection member of template is inserted in the gap of concrete building enclosure, is then fixedly mounted on template by the second fixture In concrete building enclosure；The laying water-proof coiled material layer on the inside of template.
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| CN115182353A (en) * | 2022-07-27 | 2022-10-14 | 北京天润建设有限公司 | Construction method for foundation pit of elevator shaft |
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| CN111042174A (en) * | 2019-12-27 | 2020-04-21 | 中交一公局集团有限公司 | Waterproof construction method for bottom plate of underground structure |
| CN113622431A (en) * | 2021-08-02 | 2021-11-09 | 江苏东合南岩土科技股份有限公司 | Underground structure with foam light soil isolation wall and construction method thereof |
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| CN115182353A (en) * | 2022-07-27 | 2022-10-14 | 北京天润建设有限公司 | Construction method for foundation pit of elevator shaft |
| CN115434375A (en) * | 2022-10-24 | 2022-12-06 | 浙江交工集团股份有限公司 | Hot-melt adhesive coiled material waterproof system controlled by spray anchor base plane of open-cut tunnel and construction method |
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