CN109113068A - A kind of inverse construction joint structure for building construction of deep basal pit - Google Patents
A kind of inverse construction joint structure for building construction of deep basal pit Download PDFInfo
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- CN109113068A CN109113068A CN201811203150.7A CN201811203150A CN109113068A CN 109113068 A CN109113068 A CN 109113068A CN 201811203150 A CN201811203150 A CN 201811203150A CN 109113068 A CN109113068 A CN 109113068A
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- 238000010276 construction Methods 0.000 title claims abstract description 60
- 238000009435 building construction Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000004567 concrete Substances 0.000 claims description 34
- 210000003205 muscle Anatomy 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 9
- 239000002390 adhesive tape Substances 0.000 claims description 7
- 239000003566 sealing material Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000011449 brick Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000001727 in vivo Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 14
- 239000002689 soil Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 241000238586 Cirripedia Species 0.000 description 1
- 241001649081 Dina Species 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The present invention relates to a kind of inverse construction joint structures for building construction of deep basal pit, including upper section wall, lower section wall, connection component and antiseepage component, upper section wall bottom surface and lower section wall top surface fit closely, upper section wall bottom and lower section wall the top gradient having the same, connection component includes vertical joint bar, antiseepage component includes steel plate for sealing water, hydro-expansive rubber item and exhaust pipe, hydro-expansive rubber item is set to upper section wall bottom, a part of vertical joint bar, steel plate for sealing water and exhaust pipe is embedded in upper section wall, and another part is embedded in lower section wall.Such underground structure uses multiple antiseepage anti-cracking structure measure, the construction joint waterproof effect and construction quality of the layer-by-layer reversed Construction Method of effective guarantee underground structure, adaptable strong, simple process, mechanization degree height, short time limit, it is safe and reliable the advantages that, it intricately descends the inverse of deep basal pit structures to build construction especially for large-size rotational flow pond etc. is similar, there is good waterproof anticracking effect.
Description
Technical field
The invention belongs to the inverse technical measures for building construction of outer wall of underground structure in large deep foundation pit, belong to underground Displacement On The Deep Excavation Wall
A kind of body reversed Construction Method field, and in particular to inverse construction joint structure for building construction of deep basal pit.
Background technique
Reverse construction is from top to bottom successively to carry out a kind of method of underground engineering structure construction, in recent years, large deep foundation pit
The case that underground engineering adopts this method construction is increasing.In order to ensure the waterproofing grade of entire engineering reaches corresponding rule
Model requirement, it is necessary to handle well underground wall body successively (section) inverse antiseepage crack control measures built at construction joint and reversed Construction Method at
The key point of function, more particularly to constructing for a large amount of pollution water bodys of internal storages such as Large Underground Slag treatment rotational flow settling pond
Object, the inverse construction quality for building construction joint of exterior wall are particularly important.
The water proof structure measure of reversed Construction Method seam is relatively single at present, does not consider the convenience of construction comprehensively and uses
In terms of the treatment of details of the connecting structure of reliability, especially seam crossing and Seepage control structure, directly influence the later period applies in
The waterproof effect of work seam.Existing underground engineering is sewed with following deficiency against construction is built:
1. construction joint contact surface is horizontally disposed, the not set gradient, internal gas is not easy when lower layer (section) wall pours
It empties, causes seam crossing concrete hole or voids and pits occur, be unfavorable for waterproof.
2. construction joint contact surface often uses additional labor template i.e. punching block or wooden model as bed die, upper section wall bottom is caused
Face is relatively smooth, and the later period must manually secondary dabbing processing, and inconvenience of constructing.
3. being not enough to cope with the waterproof effect under complex working condition often only with a kind of waterproof measure, and once cause to apply
Work defect and the later period is difficult to remedy.
4. lower section walls concrete pours too fast, when inner air is not easy to be discharged, in the outer corners pole of steel plate for sealing water
Cavity or concrete vibrating leakiness are easily formed, waterproof effect is largely effected on.
5. lower section wall pours, often it is not set it is elongated pour slot or to pour mouth single scattered, be unfavorable for vibrating and mix
Solidifying soil after-hardening is shunk and the compensation of sedimentation, so that wall seam crossing be caused micro-crack occur.
Summary of the invention
The present invention provides a kind of inverse construction joint structure for building construction of deep basal pit, it is intended to for improving the anti-of reversed Construction Method seam
It seeps effect and construction joint quality is not easy to the problem of controlling.
For this purpose, present invention provide the technical scheme that a kind of inverse construction joint structure for building construction of deep basal pit, including wall,
Connection component and antiseepage component, the wall include upper section wall and lower section wall, upper section wall bottom and lower section wall
Top fits closely, upper section wall bottom and lower section wall the top gradient having the same, and the connection component includes perpendicular
To joint bar, the antiseepage component includes steel plate for sealing water and hydro-expansive rubber item and exhaust pipe, and the hydro-expansive rubber item is set
It is placed in upper section wall bottom, a part of the vertical joint bar, steel plate for sealing water and exhaust pipe is embedded in upper section wall, described perpendicular
It is embedded in lower section wall to another part of joint bar, steel plate for sealing water and exhaust pipe.
It further, further include forming before upper section wall casting concrete and being removed in lower section wall construction
Bed die, the bed die are set to the bottom of upper section wall, and the bed die is filled using upper layer and lower layer material, and lower layer uses brick or hair
Barnacle is built, and upper layer uses sandgravel fill, and the gravel top surface has certain gradient.
It further, further include that bracket pours slot, the bracket pours slot position in outside the upper inner face of lower section wall, institute
It states bracket and pours the groove top face opening height certain beyond upper section wall bottom.
Further, the connection component further includes close hole wire netting, before not pouring lower section wall, the close Kong Tie
Silk screen is L-shaped, and the vertical edge of the close hole wire netting of the L shape is placed in the concrete cover of upper section wall outer side, bottom
While being tightly attached to upper section wall bottom surface, bottom edge is greater than thickness of wall body along upper section wall bottom surface gradient direction length；It is poured in lower section wall
Before building, vertically it is straightened after the removing of upper section wall bottom surface portions is close on the close hole wire netting bottom edge, makes the close Kong Tie
Silk screen bottom edge is placed in the concrete cover of lower section wall outer side, and causes it naturally after removing on upper section wall bottom edge
Hair side.
Further, the steel plate for sealing water is embedded at wall half wall thickness and elongated along wall length direction vertically
Setting, the steel plate for sealing water both ends are formed slopely upper avris to wall inside to inclination on the inside of wall, the steel plate for sealing water upper end,
The steel plate for sealing water lower end is formed slopely lower avris to wall inside.
Further, the exhaust pipe is multiple, and multiple exhaust pipes are arranged along construction joint interval, the exhaust pipe packet
Include lower part straight pipe and to top inclined tube section inclined on the inside of wall, avris on the top inclined tube section inclination angle and steel plate for sealing water
Inclination angle is consistent, and the exhaust pipe lower part straight pipe is tightly attached to the outside of steel plate for sealing water, and the lower nozzle of the exhaust pipe is exposed
Section wall bottom surface, exposed portion are equipped with cross or rice word notch, and the upper orifice of the exhaust pipe exposes upper section wall medial surface.
Further, further include adhesive tape or cystosepiment for blocking the exhaust pipe upper orifice and lower nozzle and
Sealing material for being filled in the exhaust pipe after the completion of lower section walls concrete pours, upper and lower part nozzle is under
Section walls concrete is all made of adhesive tape before pouring or cystosepiment blocks, and removes closure when lower section walls concrete pours,
Ensure that after lower section walls concrete pours completion, sealing material is filled into pipe for exhaust pipe unobstructed in pipe, described, seals
Micro-expansion cement mortar or microdilatancy pea gravel concreten can be used in material, then upper orifice is exposed to the portion on the inside of upper section wall
Cutting removes, then blocks nozzle using circular steel plate welding.
Further, the hydro-expansive rubber item is two, is located at the two sides of the steel plate for sealing water and exhaust pipe,
Two hydro-expansive rubber items are arranged along construction joint horizontal full-length.
Further, the vertical joint bar includes two rows of upper sections vertically reserved main vertical muscle and the setting for being set to wall two sides
Short joint bar is vertically added in two rows of upper sections vertically reserve between main vertical muscle two, and the upper section vertically reserves main vertical muscle and vertical
Short joint bar is added along the elongated setting of wall length direction.
Further, two sides are provided with lower section vertically main vertical muscle at the top of the lower section wall, and the lower section is vertically main to be indulged
Muscle and the upper section of respective side vertically reserve main vertical muscle connection, and vertically main vertical muscle and the upper section vertically reserve master to the lower section
Vertical tie point of the muscle in same jointing mutually staggers.
The invention has the following advantages:
1. construction joint contact surface is provided with certain gradient, inner air is arranged when more conducively lower section walls concrete pours
Out.
2. being provided with close hole wire netting at construction joint, in upper section wall construction, outside upright iron leg silk screen can prevent bottom
Enter in wall after portion's soil body slump, when removing bed die, will be vertically straightened after the removing of wire netting bottom edge, thus at upper section wall bottom
Face can the ideal hair side of self-assembling formation (rough surface), the bonding conducive to rear pouring concrete is closely knit, promote waterproof effect, in addition, draw
Wire netting after straight can also play the role of bottom wall external mold, top soil body slump when preventing lower section walls concrete from pouring
Into in wall.
3. being provided with exhaust pipe, the air at top dead angle is emptied when can pour lower section walls concrete, is prevented outer
Angle cavity or voids and pits, later period fill microdilatancy material into exhaust pipe, carry out secondary plugging to the microcrack at construction joint,
Further enhance the waterproof effect of seam crossing.
4. being provided with bracket pours slot, keeps lower section walls concrete pouring construction more convenient, pour groove top face and be higher by
The certain height in section wall bottom is conducive to the compensation shunk and settled when later period concrete hardening, can prevent from pouring inside face
It generates micro-crack or crackle is carried out.
5. construction joint uses multiple antiseepage crack prevention technique measure, the waterproof effect in outside in wall is greatly improved, more
Add safe and reliable.
Detailed description of the invention
Fig. 1 is upper section wall and the bed die signal of the inverse construction joint structure for building construction of deep basal pit provided in an embodiment of the present invention
Figure；
Fig. 2 is the upper section wall and lower section wall of the inverse construction joint structure for building construction of deep basal pit provided in an embodiment of the present invention
Schematic diagram；
Description of symbols: 1, underground structure；11, upper section wall；12, lower section wall；121, bracket pours slot；2, it connects
Component；21, vertical joint bar；211, upper section vertically reserves main vertical muscle；212, short joint bar is added；213, lower section is vertically main indulges muscle；
214, tie point；22, close hole wire netting；221, vertical edge；222, bottom edge；3, antiseepage component；31, steel plate for sealing water；311, following
It surveys；312, upper avris；32, exhaust pipe；321, top inclined tube section；322, lower part straight pipe；323, adhesive tape (or cystosepiment), 324,
Sealing material；325, round sealing plate；33, hydro-expansive rubber item；331, stationary plane；4, bed die；41, upper layer gravel mould；42, under
Layer stock mould or rubble mould.
Specific embodiment
Principles and features of the present invention are described below in conjunction with example, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only present invention a part, instead of all the embodiments.Based on the present invention
In embodiment, all other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in described Fig. 1 and Fig. 2, a kind of inverse construction joint structure for building construction of deep basal pit provided in this embodiment, including
Underground structure 1, upper section wall 11, lower section wall 12, connection component 2, antiseepage component 3, bed die 4.
The underground wall body that underground structure 1 is prepared by concrete, first construct upper section wall 11 and bed die 4, upper section wall
11 bottom surface is equipped with the gradient, reserves vertical joint bar 21 in the bottom of upper section wall 11, and reserving vertical joint bar 21 includes inside and outside two rows
Upper section vertically reserves main vertical muscle 211 and two rows vertically add short joint bar 212, and two rows of upper sections vertically reserve main vertical muscle 211 and are located at wall
The two sides of body vertically add short joint bar 212 and are located between the perpendicular reserved main vertical muscle 211 of two rows of upper sections, and the bottom of upper section wall 11 is spread
If close hole wire netting 22, before not pouring lower section wall 12, the wire netting is L-shaped, the vertical edge 221 of close hole wire netting
In the concrete cover for vertically reserving main vertical muscle 211 positioned at 11 lateral surface of upper section wall and upper section, the bottom edge of close hole wire netting
222 are affixed on 11 bottom surface of upper section wall, and keep the gradient identical with 11 bottom of upper section wall, and close hole wire netting 222 is long along wall
Spend the elongated setting in direction, be equipped with vertical steel plate for sealing water 31 at the half wall thickness of wall, steel plate for sealing water 31 along width
Lower two avris are equipped with towards the inclination angle on the inside of wall, and steel plate for sealing water 31 is elongated embedded along wall length direction, steel plate for sealing water 31
Outside is equipped with exhaust pipe 32, and the top inclined tube section 321 of exhaust pipe 32 exposes 11 25~50mm of medial surface of upper section wall, lower part straight tube
Section 322 is tightly attached to the outside of steel plate for sealing water 31, and the lower part straight pipe 322 exposes 11 10~30mm of bottom surface of upper section wall, upper
Before the concreting of section wall 11, the upper lower nozzle of exhaust pipe 32 is blocked using adhesive tape 323 or cystosepiment, prevent sundries into
Enter in pipe, the upper layer of the bed die 4 uses gravel mould 41, and lower layer uses stock mould 42 or rubble mould, and 41 top surface of gravel mould is equipped with slope
Degree, gravel mould 41 answer compaction in layers, and the vertical joint bar 21 of upper section is inserted into gravel mould 41, and described 31 a part of steel plate for sealing water is set
In upper section wall 11, another part is placed in gravel mould 41, after the molding of bed die 4, then pours the concrete of upper section wall 11,
After 11 concrete of upper section wall reaches design strength, then lower section wall 12 of constructing first excavates bed die when lower section wall 12 is constructed
4, it is vertically straightened after the removing of upper section wall bottom surface portions is close on wire netting bottom edge 222 later, makes the bottom surface of upper section wall 11
It is formed nature hair side (rough surface), the bonding conducive to rear pouring concrete is closely knit, to promote waterproof effect, and makes bottom edge in lower section
It is vertically placed to when wall pours in the concrete cover of lower section wall, the wire netting after being straightened can also play outside lower section wall
The effect of mould, top soil body slump enters in wall when preventing lower section wall from pouring, and digs out later in the bottom surface of upper section wall 11
Hydro-expansive rubber item 33 is fixed on the stationary plane 331 using adhesive or nailing by the stationary plane 331 elongated along construction joint
On, hydro-expansive rubber item 33 is located at the two sides of steel plate for sealing water 31 and exhaust pipe 32, and the lower end in lower section wall 12 is vertically main vertical
Muscle 213 is vertically reserved main vertical muscle 211 with upper section and is connect, and after connection is completed, is arranged outside the inside top of lower section wall 12 mixed
Solidifying clay ox leg pours slot 121, before 12 concreting of lower section wall must by the sealant tape 323 of exhaust pipe both ends nozzle or
Cystosepiment removes, it is ensured that elongated no dirt in managing, then the concrete of lower section wall 12 is poured, the concrete to lower section wall 12 is hard
After change, sealing material 324 is filled into exhaust pipe 32, then the part that exhaust pipe 32 exposes 11 medial surface of upper section wall is cut off,
And nozzle is blocked using the round welding of sealing plate 325.
Preferably, the top surface gradient having the same of the bottom surface gradient of upper section wall 11 and 4 upper layer gravel mould 41 of bed die, has
The discharge of its headspace when being poured conducive to lower section wall 12.
Preferably, 221 height of vertical edge of close hole wire netting 22 is greater than 200mm, and bottom edge 222, will be tight after excavating bed die 4
It is affixed on being partially stripped for 11 bottom surface of upper section wall, then is vertically straightened, so that the bottom of upper section wall 11 is formed nature hair side (coarse
Face), conducive to the bonding of later period casting concrete, the wire netting after being straightened can also serve as external mold, be located at upper section and vertically reserve main vertical muscle
211 outside protective layer in, can effectively prevent outside the soil body in casting concrete slump and enter wall inside, influence to construct
Concrete strength at seam.
Preferably, reserve vertically add short joint bar 212 be located at wall construction seam middle part, can uniformly regular rectangular shape arrange or
Plum blossom arrangement, is conducive to the contraction in conjunction with surface concrete, moreover it is possible to play reinforcing effect to the strength of wall body at construction joint.
Preferably, the lower avris 311 of the inclination angle section of steel plate for sealing water 31,312 width of upper avris are 30~60mm, inclination angle section
Inclination angle size is 20 °~40 °, 31 250~400mm of overall width of steel plate for sealing water, and material uses carbon steel sheet Q235 or galvanized steel plain sheet, steel
Plate thickness is 2~3mm.
Preferably, the material of exhaust pipe 32 uses carbon steel Q235, and diameter is 70~114mm, and wall thickness is 2~4mm, and top is oblique
The inclination angle of pipeline section 321 is consistent with the inclination angle of upper avris 312 of steel plate for sealing water 31, and bottom nozzle exposed portion is equipped with cross or rice word
Notch, the air more conducively at construction joint empty, and exhaust pipe 32 arranges one along wall 2000~4000mm of length direction spacing.
Preferably, when vertical joint bar 21 is inserted into gravel mould 41, using artificial shovel hole or drilling, steel plate for sealing water 31 is inserted into sand
After gravel mould 41, then the sandy gravel stratum of two sides is tamped and ensures that steel plate for sealing water 31 is vertical.
Preferably, the horizontal width of stationary plane 331 is slightly larger than the horizontal width of hydro-expansive rubber item 33, stationary plane 331
It should guarantee that hydro-expansive rubber item 33 is tightly attached to stationary plane 331, horizontal position is preferably close to sealing along the elongated smooth transition of construction joint
Steel plate 31, hydro-expansive rubber item 33 cannot contact before lower section wall 12 pours with water.
Preferably, hydro-expansive rubber item 33 should have chance water to delay swollen performance, and 7 days net expansion rates are swollen no more than final
The 60% of swollen rate, final expansion rate are greater than 220%.
Preferably, 12 two sides of the bottom of the lower section wall setting lower section is vertically main indulges muscle 213, and the lower section is vertically main to indulge muscle
213, which vertically reserve main vertical muscle 211 with the upper section of respective side, connect, and vertically main vertical muscle 213 and the upper section are perpendicular for the lower section
The tie point 214 for indulging muscle 211 to reserved master should mutually stagger in same jointing, and the spacing that is staggered is 29~42d (based on d
Vertical muscle diameter).
Preferably, the sealed material 324 filled in exhaust pipe 32, sealed material 324 can be used micro-expansion cement mortar or
Microdilatancy pea gravel concreten should consolidate when filling, and carry out secondary pour to the gap of contact surface inside remaining, it is ensured that and it is closely knit, on
Round sealing plate 325 after holding exposed nozzle to cut off can be used welding and block.
Preferably, for the gradient of 41 top surface of upper layer gravel mould of bed die 4 between 20 °~30 °, sandy gravel stratum answers compaction in layers, rams
Real coefficient is more than or equal to 0.94, and common Dinas brickes can be used in lower layer's stock mould 42 or rubble mould or slabstone, rubble, rubble class material are built
It builds.
Preferably, it is 150~250mm that bracket, which pours the horizontal width of slot 121, pours groove top face beyond 11 bottom of upper section wall
Height on the inside of portion is greater than 200mm, and bracket is 250~350mm in the open height of 12 inside top of lower section wall, is conducive to lower section
The concreting of wall 12 and later period shrinkage-compensating, prevent internal fissure from carrying out.
In conclusion the inverse construction joint structure for building construction of deep basal pit provided by the invention, uses multiple antiseepage anticracking skill
Art measure not only greatly improves the waterproof effect at construction joint, certain benefit has also been carried out to the strength of wall body at construction joint
By force, which has very strong adaptability, and mechanization degree is high, and it is convenient to construct, and saves the duration, greatly improves the peace of concealed work
Full property and reliability, especially in the similar engineerings such as large deep foundation pit underground Whirlwind tank, have significant economic benefit and
Broad application prospect.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of inverse construction joint structure for building construction of deep basal pit, which is characterized in that including wall, connection component and antiseepage component,
The wall includes upper section wall and lower section wall, upper section wall bottom surface and lower section wall the top surface gradient having the same,
Construction joint is formed at the upper section wall and lower section wall faying face, the connection component includes vertical joint bar, the antiseepage group
Part includes steel plate for sealing water, hydro-expansive rubber item and exhaust pipe, the hydro-expansive rubber item be set to upper section wall bottom surface and
In the construction joint, a part of the vertical joint bar, steel plate for sealing water and exhaust pipe is embedded in upper section wall, described perpendicular
The construction joint is both passed through to another part of joint bar, steel plate for sealing water and exhaust pipe and is embedded in lower section wall.
2. the inverse construction joint structure for building construction of deep basal pit according to claim 1, which is characterized in that further include in upper section wall
The bed die for forming before body casting concrete and removing in lower section wall construction, the bed die are set to the bottom of upper section wall
Portion, the bed die are filled using upper layer and lower layer material, and lower layer uses brick or free stone masonry, and upper layer uses sandgravel fill, the sand
The top surface of gravel bed has certain gradient.
3. the inverse construction joint structure for building construction of deep basal pit according to claim 1, which is characterized in that further include that bracket pours
Slot, the bracket pour slot position outside the medial surface at the top of the lower section wall, and the bracket pours groove top face opening beyond upper section
The certain height in wall bottom.
4. the inverse construction joint structure for building construction of deep basal pit according to claim 1, which is characterized in that the connection component is also
Including close hole wire netting, before not pouring lower section wall, the close hole wire netting is L-shaped, the close hole iron wire of the L shape
The vertical edge of net is placed in the concrete cover of upper section wall outer side, and upper section wall bottom surface is tightly attached on bottom edge, and bottom edge is along upper section
Wall bottom surface gradient direction length is greater than thickness of wall body；Before lower section wall pours, the close hole wire netting bottom edge is removed
Upper section wall bottom surface is simultaneously vertically straightened, and is placed in the close hole wire netting bottom edge in the concrete cover of lower section wall outer side.
5. the inverse construction joint structure for building construction of deep basal pit according to claim 1, which is characterized in that the steel plate for sealing water is vertical
It is embedded at wall half wall thickness and along the elongated setting of wall length direction, the steel plate for sealing water both ends are rolled into wall
Tiltedly, the steel plate for sealing water upper end is formed slopely upper avris to wall inside, and the steel plate for sealing water lower end tilts shape to wall inside
At lower avris.
6. the inverse construction joint structure for building construction of deep basal pit according to claim 1, which is characterized in that the exhaust pipe is more
A, multiple exhaust pipes are arranged along construction joint interval, and the exhaust pipe includes lower part straight pipe and exhaust pipe top to wall
The top inclined tube section tiltedly formed is rolled in vivo, and the top inclined tube section inclination angle is consistent with steel plate for sealing water top angle of heel, described
Exhaust pipe lower part straight pipe is tightly attached to the outside of steel plate for sealing water, and the lower nozzle of the exhaust pipe exposes upper section wall bottom surface, dew
Part is equipped with cross or rice word notch out, and the upper orifice of the exhaust pipe exposes upper section wall medial surface.
7. the inverse construction joint structure for building construction of deep basal pit according to claim 6, which is characterized in that further include for blocking
State the adhesive tape or cystosepiment and for being filled in institute after the completion of lower section wall pours of exhaust pipe upper orifice and lower nozzle
The sealing material in exhaust pipe is stated, before lower section walls concrete pours, the upper orifice and lower nozzle of the exhaust pipe make
It is plugged in adhesive tape or cystosepiment, when lower section walls concrete pours, the adhesive tape of upper orifice and lower nozzle will be plugged in
Or cystosepiment removes, and after the completion of lower section walls concrete pours, sealing material is filled into exhaust pipe from upper orifice, institute
Stating sealing material is micro-expansion cement mortar or microdilatancy pea gravel concreten.
8. the inverse construction joint structure for building construction of deep basal pit according to claim 1, which is characterized in that the hydro-expansive rubber
Item is two, is located at the two sides of the steel plate for sealing water and exhaust pipe, two hydro-expansive rubber items are along construction joint water
Put down elongated setting.
9. the inverse construction joint structure for building construction of deep basal pit according to claim 1, which is characterized in that the vertical joint bar includes
The two rows of upper sections for being set to upper end wall two sides vertically reserve main vertical muscle and are set to two rows of upper sections and vertically reserve between main vertical muscle
Two rows vertically add short joint bar, the upper section, which vertically reserves main vertical muscle and vertically adds short joint bar, to be led to along wall length direction
Long setting.
10. the inverse construction joint structure for building construction of deep basal pit according to claim 9, which is characterized in that lower section wall bottom
Portion two sides are provided with lower section vertically main vertical muscle, and vertically main vertical muscle and the upper section of respective side are vertically reserved main vertical for the lower section
Muscle connection, vertically vertically reserved main vertical tie point of the muscle in same jointing is mutual with the upper section for main vertical muscle for the lower section
It is staggered.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203150.7A CN109113068B (en) | 2018-10-16 | 2018-10-16 | Construction joint structure for reverse construction of deep foundation pit |
| PCT/CN2019/106441 WO2020078160A1 (en) | 2018-10-16 | 2019-09-18 | Construction joint structure in deep-excavation reverse construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811203150.7A CN109113068B (en) | 2018-10-16 | 2018-10-16 | Construction joint structure for reverse construction of deep foundation pit |
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| Publication Number | Publication Date |
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| CN109113068A true CN109113068A (en) | 2019-01-01 |
| CN109113068B CN109113068B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811203150.7A Active CN109113068B (en) | 2018-10-16 | 2018-10-16 | Construction joint structure for reverse construction of deep foundation pit |
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| Country | Link |
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| CN (1) | CN109113068B (en) |
| WO (1) | WO2020078160A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020078160A1 (en) * | 2018-10-16 | 2020-04-23 | 中冶南方工程技术有限公司 | Construction joint structure in deep-excavation reverse construction |
| CN111622571A (en) * | 2020-04-21 | 2020-09-04 | 上海二十冶建设有限公司 | Construction method for pouring reserved plate joint bars on cyclone well pool wall and cantilever plate in stages |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112294A (en) * | 2020-10-26 | 2020-12-22 | 中建四局第三建设有限公司 | Construction method and device based on assembled waterproof construction joint water stop |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2020078160A4 (en) | 2020-05-28 |
| CN109113068B (en) | 2024-04-12 |
| WO2020078160A1 (en) | 2020-04-23 |
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