CN109322313B - Foundation pit enclosure structure system and its construction method - Google Patents
Foundation pit enclosure structure system and its construction method Download PDFInfo
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- CN109322313B CN109322313B CN201910004095.7A CN201910004095A CN109322313B CN 109322313 B CN109322313 B CN 109322313B CN 201910004095 A CN201910004095 A CN 201910004095A CN 109322313 B CN109322313 B CN 109322313B
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- 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
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Abstract
The invention discloses a kind of foundation pit enclosure structure system and its construction methods, the system includes diaphram wall, biting connecions bored concrete pile positioned at the diaphram wall side, the depth of the biting connecions bored concrete pile is greater than the depth of the diaphram wall, and the compaction grouting layer between the diaphram wall and biting connecions bored concrete pile in gap；The second capping beam is provided at the top of the biting connecions bored concrete pile, the both ends of second capping beam are respectively arranged with the first reserved steel bar and the second reserved steel bar, second capping beam, which is anchored by the first reserved steel bar with the diaphram wall, to be connect, and second capping beam anchors into connection by the corresponding layer of the second reserved steel bar piling strtucture plate to be formed.The present invention has the effect of that low short construction period, project cost, high reliablity and stability are good.
Description
Technical field
The present invention relates to technical field of building construction, in particular to a kind of foundation pit enclosure structure system and its construction method.
Background technique
In recent years, with the continuous quickening of Chinese Urbanization planning and deep, along with the increasingly in short supply of land resource,
The design and construction of underground structure are increased in building newly developed.The underground structure of traditional building newly developed is general
Only with the foundation pit enclosure structure of diaphram wall, there are long construction period, project cost is high, reliability and stability are poor
Defect.For the existing buildings such as ancient building, old building protection construction in, due to the foundation pit enclosure structure of existing building
Generally only with diaphram wall, thus when the underground space to existing building is transformed, the depth to foundation pit is needed
Further intensification processing, when foundation depth is deepened, the insertion depth of the foundation pit enclosure structure of original diaphram wall mode is just
It cannot be guaranteed that deep pit monitor excavates with underground structure safe construction and not can guarantee the safety of superstructure in transformation process
Property, according to new diaphram wall as the building enclosure that foundation pit is transformed will bring cost it is high, it is long in time limit etc. it is unfavorable because
Element, and original building enclosure can not be made full use of, therefore how to study a kind of foundation pit that can solve in such architectural engineering
The technical issues of structural protective system and construction method are those skilled in the art's urgent need to resolve.
Summary of the invention
The object of the present invention is to provide a kind of foundation pit enclosure structure system and its construction methods, to solve construction period
Technical problem long, project cost is high, reliability and stability are poor.
In order to solve the above technical problem, the present invention provides a kind of foundation pit enclosure structure system, including diaphram wall, positions
The depth of biting connecions bored concrete pile in the diaphram wall side, the biting connecions bored concrete pile is greater than the diaphram wall
Depth, and the compaction grouting layer between the diaphram wall and biting connecions bored concrete pile in gap；The biting connecions fill
The second capping beam is provided at the top of note stake, the both ends of second capping beam are respectively arranged with the first reserved steel bar and second in advance
Reinforcing bar is stayed, second capping beam, which is anchored by the first reserved steel bar with the diaphram wall, to be connect, second capping beam
Connection is anchored by the corresponding layer of the second reserved steel bar piling strtucture plate to be formed.
Further, foundation pit enclosure structure system provided by the invention, including the wall between the diaphram wall
Based structures plate.
Further, foundation pit enclosure structure system provided by the invention, the wall base structural slab include at least the B0 layers of wall base
Structural slab and B1 layers of wall base structural slab.
Further, foundation pit enclosure structure system provided by the invention is provided with first at the top of the diaphram wall
Capping beam, the B0 layers of wall base structural slab are arranged on first capping beam.
Further, foundation pit enclosure structure system provided by the invention, including between the biting connecions bored concrete pile
Piling strtucture plate.
Further, foundation pit enclosure structure system provided by the invention, the piling strtucture plate include at least B2 layers of pile foundation
Structural slab, B3 layers of piling strtucture plate and bottom piling strtucture plate.
Further, foundation pit enclosure structure system provided by the invention, the B2 layers of piling strtucture plate are located at described second
On capping beam, the B2 layers of piling strtucture plate is the second capping beam respective layer piling strtucture plate to be formed.
Further, foundation pit enclosure structure system provided by the invention, the bottom piling strtucture plate lower section are provided with vertical
Stanchion.
Further, foundation pit enclosure structure system provided by the invention, the biting connecions bored concrete pile include more bored concrete piles,
Adjacent two bored concrete piles partially overlap setting.
In order to solve the above-mentioned technical problem, construction method of the present invention also for a kind of foundation pit enclosure structure system,
In the side of diaphram wall construction biting connecions bored concrete pile, it is greater than the depth of the biting connecions bored concrete pile describedly
The depth of lower diaphragm wall, and make the biting connecions bored concrete pile formation positioned at the plain concrete perfusion pile cutoff of upper part and under being located at
Partial deposited reinforced concrete pile section, the length of the deposited reinforced concrete pile section are greater than plain concrete and pile cutoff are perfused；
Gap between diaphram wall and biting connecions bored concrete pile forms compaction grouting layer；
The plain concrete perfusion pile cutoff in the biting connecions bored concrete pile is removed, is filled in the armored concrete of biting connecions bored concrete pile
The second capping beam of top construction for infusing pile cutoff makes the both ends of the second capping beam be respectively arranged with the first reserved steel bar and second and reserves
Reinforcing bar anchors into the second capping beam with diaphram wall by the first reserved steel bar and connect.
Further, the construction method of foundation pit enclosure structure system provided by the invention, during excavation,
Gradually remove the plain concrete perfusion pile cutoff in the biting connecions bored concrete pile, wall base structure of constructing between the diaphram wall
Plate；
The construction piling strtucture plate between the biting connecions bored concrete pile with deposited reinforced concrete pile section；
Connection is anchored by the piling strtucture plate that the second reserved steel bar forms the corresponding layer of second capping beam.
Further, the construction method of foundation pit enclosure structure system provided by the invention, during excavation,
Gradually remove the plain concrete perfusion pile cutoff in the biting connecions bored concrete pile；
The construction piling strtucture plate between the biting connecions bored concrete pile with deposited reinforced concrete pile section；
Connection is anchored by the piling strtucture plate that the second reserved steel bar forms the corresponding layer of second capping beam.
Foundation pit enclosure structure system and its construction method provided by the invention, by diaphram wall, compaction grouting layer and sting
The superposition mode that box-like bored concrete pile is constituted, the strength and stability of the foundation pit enclosure structure system of the superposition mode, much
The foundation pit enclosure structure single greater than diaphram wall etc..Biting connecions bored concrete pile provided by the invention has safe and reliable, stable
And short construction period, project cost are low and small advantage is influenced by foundation pit soil property.The present invention passes through diaphram wall and occlusion
Formula bored concrete pile combination is effectively utilized the big advantage of existing diaphram wall rigidity, and biting connecions bored concrete pile is utilized
The advantages of quick construction, has good earth-retaining and water-stagnating effect；Simultaneously in the existing insufficient feelings of diaphram wall insertion depth
Under condition, it is effectively controlled foundation pit deformation, technical measures expense is reduced, speeds up the work.The present invention passes through the second capping beam
First reserved steel bar anchors into diaphram wall, in the prior art use brace connect foundation pit enclosure structure and layer to be formed
The mode of structural slab is compared, and ensure that continuity, overall stability and safety that foundation pit enclosure structure system is transmitted in stress,
Foundation pit deformation can effectively be controlled.The present invention is by compaction grouting layer to the gap between diaphram wall and biting connecions bored concrete pile
Compaction grouting filling is carried out, the reliability and stability of foundation pit enclosure structure system is ensure that, avoids the underground in gap continuous
The case where wall and biting connecions bored concrete pile phase enantiotropy, and compaction grouting layer be not necessarily to diaphram wall and biting connecions bored concrete pile it
Between carry out bore process, when can overcome high-pressure rotary jet grouting pile slip casting the structure caused by diaphram wall and bored concrete pile destroy, because
This, stability of the invention is higher.The present invention is greater than the biting connecions bored concrete pile of diaphram wall by depth, to extend both
There is the insertion depth of underground continuous wall-enclosure structure single in building, to ensure the safety and over the ground of superstructure
Flowering structure is constructed, to ensure the safety of the excavation of foundation pit and construction operation of underground construction.The present invention is suitable for newly opening
The building underground structure of hair is also applied for the underground structure rebuilding construction of existing building.It is tied in the underground of existing building
In structure rebuilding construction, the recycling of the original foundation pit enclosure structure single to diaphram wall etc. is reduced to surrounding enviroment
Disturbance, realizes the purpose of environmentally protective recycling.
Detailed description of the invention
Fig. 1 is the foundation pit enclosure structure system of one embodiment of the invention and the schematic diagram of underground structure；
Fig. 2 is the foundation pit enclosure structure system of one embodiment of the invention and the partial structural diagram of underground structure；
Fig. 3 is the profile in Fig. 2 at C-C；
Fig. 4 is the structural schematic diagram of the foundation pit enclosure structure system of one embodiment of the invention；
Fig. 5 is profile of the biting connecions bored concrete pile along A-A in Fig. 4；
Fig. 6 is profile of the biting connecions bored concrete pile along B-B in Fig. 4；
Fig. 7 to Fig. 8 is the work progress schematic diagram of the underground structure of one embodiment of the invention.
It is as shown in the figure: 100, foundation pit enclosure structure system, 110, diaphram wall, 120, biting connecions bored concrete pile, 130, pressure
Close grouting layer, the 140, second capping beam, the 141, first reserved steel bar, the 142, second reserved steel bar, 150, wall base structural slab, 151,
B0 layers of wall base structural slab, 152, B1 layers of wall base structural slab, the 160, first capping beam, 170, piling strtucture plate, 171, B2 layers of pile foundation
Structural slab, 172, B3 layers of piling strtucture plate, 173, bottom piling strtucture plate, 180, stand column pile, 190 support columns, 200, ground level.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing:
Fig. 1 to Fig. 8 is please referred to, the embodiment of the present invention provides a kind of foundation pit enclosure structure system 100, including diaphram wall
110, the biting connecions bored concrete pile 120 positioned at 110 side of diaphram wall, the depth of the biting connecions bored concrete pile 120 is greater than
The depth of the diaphram wall 110, and between the diaphram wall 110 and biting connecions bored concrete pile 120 in gap
Compaction grouting layer 130；The top of the biting connecions bored concrete pile 120 is provided with the second capping beam 140, second capping beam
140 both ends are respectively arranged with the first reserved steel bar 141 and the second reserved steel bar 142, and second capping beam 140 passes through first
Reserved steel bar 141 is anchored into the diaphram wall 110 and is connect, second capping beam 140 by the second reserved steel bar 142 with
Its respective layer piling strtucture plate to be formed anchors into connection.
The foundation pit enclosure structure system 100 of the embodiment of the present invention is by diaphram wall 110, compaction grouting layer 130 and to sting
The superposition mode that box-like bored concrete pile 120 is constituted, strength and stability are far longer than the single foundation pit such as diaphram wall and enclose
Protection structure.Biting connecions bored concrete pile 120 provided in an embodiment of the present invention has safe and reliable, stable and short construction period, engineering
Low cost and small advantage is influenced by foundation pit soil property.The present invention passes through 120 side of combination of diaphram wall 110 and biting connecions bored concrete pile
Formula is effectively utilized the big advantage of existing diaphram wall rigidity, and the excellent of 120 quick construction of biting connecions bored concrete pile is utilized
Point has good earth-retaining and water-stagnating effect；Simultaneously in the insufficient situation of existing 110 insertion depth of diaphram wall, effectively
Control foundation pit deformation, reduce technical measures expense, speed up the work.The embodiment of the present invention passes through the second capping beam 140
First reserved steel bar 141 anchors into diaphram wall 110, and uses brace connect foundation pit enclosure structure and to shape in the prior art
At the mode of layer structural slab compare, ensure that continuity, overall stability that foundation pit enclosure structure system transmits in stress and
Safety can effectively control foundation pit deformation.The embodiment of the present invention is by 130 pairs of diaphram wall 110 of compaction grouting layer and stings
Gap between box-like bored concrete pile 120 carries out compaction grouting compacting filling, ensure that foundation pit enclosure structure system reliability and
Stability, the case where avoiding the 120 phase enantiotropy of diaphram wall 110 and biting connecions bored concrete pile in gap, and compaction grouting
Layer 130 can overcome high-pressure rotary jet grouting pile without carrying out bore process between diaphram wall 110 and biting connecions bored concrete pile 120
The structure caused by diaphram wall and bored concrete pile is destroyed when slip casting, and therefore, stability of the invention is higher.The embodiment of the present invention
It is greater than the biting connecions bored concrete pile of diaphram wall by depth, is enclosed to extend diaphram wall single in existing building
The insertion depth of protection structure, to ensure the safety of superstructure and construct to underground structure, to ensure that underground is applied
The safety of the excavation of foundation pit and construction operation of work.Wherein the interface of superstructure and underground structure is ginseng with ground level 200
It examines.The present invention is suitable for building underground structure newly developed, is also applied for the underground structure rebuilding construction of existing building.
In the underground structure rebuilding construction of existing building, the benefit again of the original foundation pit enclosure structure single to diaphram wall etc.
With reducing the disturbance to surrounding enviroment, realize the purpose of environmentally protective recycling.
Fig. 1, Fig. 7 are please referred to Fig. 8, foundation pit enclosure structure system 100 provided in an embodiment of the present invention, including be located at described
Wall base structural slab 150 between diaphram wall 110, the wall base structural slab 150 include at least B0 layers of 151 He of wall base structural slab
B1 layers of wall base structural slab 152.The top of the diaphram wall 110 is provided with the first capping beam 160, the B0 layers of wall base structure
Plate 151 is arranged on first capping beam 160.
Referring to FIG. 1, foundation pit enclosure structure system 100 provided in an embodiment of the present invention, including be located at the biting connecions and fill
Infuse the piling strtucture plate 170 between stake 120.The piling strtucture plate 170 includes at least B2 layers of piling strtucture plate 171, B3 layers of stake
Based structures plate 172 and bottom piling strtucture plate 173.The B2 layers of piling strtucture plate 171 is located on second capping beam 140,
The B2 layers of piling strtucture plate 171 is 140 respective layer of the second capping beam piling strtucture plate to be formed.The B3 layers of pile foundation
Structural slab 172 and the bottom piling strtucture plate 173 are respectively positioned between the biting connecions bored concrete pile 120.The embodiment of the present invention
Underground structure includes but is not limited to 4 layers, including by B0 layers of wall base structural slab 151, B1 layers of wall base structural slab 152 and B2 layers of pile foundation knot
Structure plate 171 constitute 2 layers of wall base underground structure and by B2 layers of piling strtucture plate 171, B3 layers of piling strtucture plate 172 and bottom pile foundation
2 layers of pile foundation underground structure that structural slab 173 is constituted.It, can be according to tool in new construction or existing building development
Body demand has geographical environment appropriate adjustment.
Referring to FIG. 1, foundation pit enclosure structure system 100 provided in an embodiment of the present invention, the bottom piling strtucture plate 173
Lower section is provided with stand column pile 180.Between the wall base structural slab 150, between piling strtucture plate 170 and wall base structural slab 150
Average mark is furnished with support column 190 between piling strtucture plate 170.Stand column pile 180 is used to guarantee the stability of underground structure.Support
Column 190 is used to protect the stability between each layer structural slab.
Please refer to fig. 4 to fig. 6, foundation pit enclosure structure system 100 provided in an embodiment of the present invention, the biting connecions bored concrete pile
120 include more bored concrete piles, and adjacent two bored concrete piles partially overlap setting, to form biting connecions bored concrete pile 120.
Fig. 1-8 is please referred to, the embodiment of the present invention also provides a kind of construction method of foundation pit enclosure structure system 100, including
Following steps:
Step 1, in the side of diaphram wall 110 construction biting connecions bored concrete pile 120, make the biting connecions bored concrete pile 120
Depth be greater than the depth of the diaphram wall 110, and the biting connecions bored concrete pile 120 is made to form the element for being located at upper part
Filling concrete pile cutoff 121 and deposited reinforced concrete pile section 122 positioned at lower part, the deposited reinforced concrete pile section
122 length is greater than plain concrete and pile cutoff 121 is perfused；Biting connecions bored concrete pile 120 can be formed in the inside of diaphram wall 110
Or outside, the embodiment of the present invention preferably use inside, to make the piling strtucture plate 170 to be formed relative to wall base structural slab
150 be tightening structure, to guarantee the stability of foundation pit enclosure structure system and underground structure.In order to guarantee the stabilization of foundation pit
Property, the deficiency of building enclosure insertion depth is made up, is filled in biting connecions of constructing at 300mm to 400mm on the inside of diaphram wall
Stake 120 is infused, it is pre-buried using the internal diameter steel pile casting progress to 200mm 100mm bigger than grout pile diameter before drilling.Wherein, it please refers to
Fig. 5, it is more bored concrete piles that pile cutoff 121, which is perfused, in plain concrete, and adjacent two bored concrete piles partially overlap setting.Referring to FIG. 6, reinforcing bar
Filling concrete pile cutoff 122 is formed between two neighboring plain concrete perfusion pile cutoff 121, to form biting connecions structure.Its
Middle deposited reinforced concrete pile section 122 is that concrete 1222 and reinforcing bar 1221 are constituted.Referring to FIG. 4, pile cutoff is perfused in plain concrete
121 and deposited reinforced concrete pile section 122 divided by line of demarcation 123.
Step 2, the gap between diaphram wall 110 and biting connecions bored concrete pile 120 forms compaction grouting layer 130.Its
Purpose be it is closely knit in order to fill, to ensure what stress between 120 composite structure of diaphram wall 110 and biting connecions bored concrete pile was transmitted
Continuity gives full play to superposed type building enclosure group effect.
Step 3, please refer to figs. 1 to 4, removes the plain concrete perfusion pile cutoff 121 in the biting connecions bored concrete pile 120,
In the second capping beam 140 of top construction of the deposited reinforced concrete pile section 122 of biting connecions bored concrete pile 120, make the second capping beam
140 both ends are respectively arranged with the first reserved steel bar 141 and the second reserved steel bar 142, make second by the first reserved steel bar 141
Capping beam 140 is anchored into diaphram wall 110 and is connect.Such as second reserved steel bar be 3 × 3 Φ, 16@200, anchor into ground-connecting-wall simultaneously
Hole is reinforced with the Concrete Filled of HILTI RE-500 model, makes diaphram wall 110 and biting connecions bored concrete pile 120 formation
One complete linkage system.
As preferable embodiment, the construction method of foundation pit enclosure structure system 100 provided in an embodiment of the present invention, also
Include:
Step 4, Fig. 4, Fig. 7 are please referred to and gradually removes the biting connecions perfusion during excavation to Fig. 8
Pile cutoff 121 is perfused in plain concrete in stake 120, wall base structural slab 150 of constructing between the diaphram wall 110.Specifically apply
Work step is rapid, and can construct B0 layers of wall base structural slab 151 in excavation of foundation pit to B1 layers of 152 or less 1.5m of wall base structural slab or so,
The lateral pressure that foundation pit enclosure structure system transmits is resisted by B0 layers of wall base structural slab 151；It is applied on the first capping beam 160
B0 layers of wall base structural slab 151 of work control the top displacement of diaphram wall 110 to guarantee its stabilization.
Step 5, Fig. 1 to Fig. 3 is please referred to, between the biting connecions bored concrete pile 120 with deposited reinforced concrete pile section 122
Construction piling strtucture plate 170；The pile foundation for forming the corresponding layer of second capping beam 140 by the second reserved steel bar 142
Structural slab anchors into connection.I.e. the second capping beam 140 is anchored into B2 layers of piling strtucture plate by the second reserved steel bar 142 and is connect.Its
Purpose is the foundation pit enclosure structure system for increasing diaphram wall 110, biting connecions bored concrete pile 120 and compaction grouting layer 130 and being formed
Stability.Embodiment of the step 4 to step 5, foundation pit enclosure structure system suitable for new construction.
As preferable embodiment, the construction method of foundation pit enclosure structure system 100 provided in an embodiment of the present invention, also
Including
Step 4 ', during excavation, the plain concrete gradually removed in the biting connecions bored concrete pile 120 is filled
Infuse pile cutoff 121；
Step 5 ', piling strtucture plate of constructing between the biting connecions bored concrete pile 120 with deposited reinforced concrete pile section 122
170；Connection is anchored by the piling strtucture plate that the second reserved steel bar 142 forms the corresponding layer of second capping beam 140.
I.e. the second capping beam 140 is anchored into B2 layers of piling strtucture plate by the second reserved steel bar 142 and is connect.The purpose is to increase underground to connect
The stability for the foundation pit enclosure structure system that continuous wall 110, biting connecions bored concrete pile 120 and compaction grouting layer 130 are formed.Such step
4 are suitable for the foundation pit enclosure structure system of new construction to step 5.The embodiment of step 4 ' and step 5 ' is suitable for both
There is building underground structure improvement project.
In the embodiment of the present invention, second capping beam 140 passes through the first reserved steel bar 141 and the diaphram wall
110 anchor into connection, the second capping beam 140 piling strtucture plate to be formed by the corresponding layer of the second reserved steel bar 142
Anchor into connection.By being connect and piling strtucture plate to be formed anchors into connection with anchoring into for diaphram wall 140, to enhance
The reliability and stability of foundation pit enclosure structure system.The first preferential reserved steel bar 141 is three, but is not limited to three.
The foundation pit enclosure structure system of the embodiment of the present invention is combined with underground structure " contrary sequence method " construction, without setting interior branch
Mechanization rapid construction is convenient in support, does not influence the construction of next process, saves the duration, and explosion is avoided to tear support etc. open to environment band
The influence come, realizes green construction.
Core of the invention is: using the laminated form of diaphram wall, biting connecions bored concrete pile and compaction grouting three,
In conjunction with the construction of earth excavation, underground structure, the system of a superposed type building enclosure and underground structure synergy is formed.Wound
Solve the problems, such as to the property made in existing building enclosure insertion depth deficiency situation that caused foundation pit is unstable, deformation is big and
The problem that duration is nervous, cost is high, it is ensured that the safety in Excavation Process effectively raises construction efficiency, reduces
Engineering cost ensures architecture quality, realizes green construction.
It is insufficient folded that the embodiment of the present invention is that one kind can solve the existing building enclosure insertion depth in deep, big base pit engineering
Box-like building enclosure is to combine diaphram wall, biting connecions bored concrete pile and compaction grouting, and pass through step excavation, substep
Constructing structure layer makes entire building enclosure form a kind of complete stabilising system, solves the foundation pit in deep, big foundation pit transformation
The problems such as stability is insufficient, the duration is nervous.
The embodiment of the present invention especially suitable for using original diaphram wall foundation pit improvement project, have it is environmentally protective,
The advantages of available, easy for construction, stress clear reliable, saving construction cost, stablize to foundation pit in deep, big foundation pit improvement project is solved
Property insufficient, Deformation control require high, duration nervous and the problems such as underground structure quality requirement height have Practical significance.
The present invention is not limited to above-mentioned specific embodiment, all made various changes within the spirit and scope of the present invention
And retouching, it is within the scope of the present invention.
Claims (12)
1. a kind of foundation pit enclosure structure system, which is characterized in that including diaphram wall, positioned at the diaphram wall side
Biting connecions bored concrete pile, the depth of the biting connecions bored concrete pile is greater than the depth of the diaphram wall, and is located at the underground
Compaction grouting layer between diaphragm wall and biting connecions bored concrete pile in gap；The second pressure is provided at the top of the biting connecions bored concrete pile
Top beam, the both ends of second capping beam are respectively arranged with the first reserved steel bar and the second reserved steel bar, second capping beam
It is anchored into and is connect with the diaphram wall by the first reserved steel bar, second capping beam is right with it by the second reserved steel bar
The piling strtucture plate for answering layer to be formed anchors into connection.
2. foundation pit enclosure structure system as described in claim 1, which is characterized in that including between the diaphram wall
Wall base structural slab.
3. foundation pit enclosure structure system as claimed in claim 2, which is characterized in that the wall base structural slab includes at least B0 layers
Wall base structural slab and B1 layers of wall base structural slab.
4. foundation pit enclosure structure system as claimed in claim 3, which is characterized in that be provided at the top of the diaphram wall
First capping beam, the B0 layers of wall base structural slab are arranged on first capping beam.
5. foundation pit enclosure structure system as described in claim 1, which is characterized in that including be located at the biting connecions bored concrete pile it
Between piling strtucture plate.
6. foundation pit enclosure structure system as claimed in claim 5, which is characterized in that the piling strtucture plate includes at least B2 layers
Piling strtucture plate, B3 layers of piling strtucture plate and bottom piling strtucture plate.
7. foundation pit enclosure structure system as claimed in claim 6, which is characterized in that the B2 layers of piling strtucture plate is located at described
On second capping beam, the B2 layers of piling strtucture plate is the second capping beam respective layer piling strtucture plate to be formed.
8. foundation pit enclosure structure system as claimed in claim 6, which is characterized in that setting below the bottom piling strtucture plate
There is stand column pile.
9. foundation pit enclosure structure system as described in claim 1, which is characterized in that the biting connecions bored concrete pile includes more fillings
Stake is infused, adjacent two bored concrete piles partially overlap setting.
10. a kind of construction method of foundation pit enclosure structure system, which is characterized in that
In the side of diaphram wall construction biting connecions bored concrete pile, connect the depth of the biting connecions bored concrete pile greater than the underground
The depth of continuous wall, and the biting connecions bored concrete pile is made to form the plain concrete perfusion pile cutoff for being located at upper part and be located at lower part
Deposited reinforced concrete pile section, the length of the deposited reinforced concrete pile section is greater than plain concrete and pile cutoff is perfused；
Gap between diaphram wall and biting connecions bored concrete pile forms compaction grouting layer；
The plain concrete perfusion pile cutoff in the biting connecions bored concrete pile is removed, in the deposited reinforced concrete pile of biting connecions bored concrete pile
The second capping beam of top construction of section, makes the both ends of the second capping beam be respectively arranged with the first reserved steel bar and the second reserved steel
Muscle anchors into the second capping beam with diaphram wall by the first reserved steel bar and connect.
11. the construction method of foundation pit enclosure structure system as claimed in claim 10, which is characterized in that in excavation
In the process, the plain concrete perfusion pile cutoff in the biting connecions bored concrete pile is gradually removed, is constructed between the diaphram wall
Wall base structural slab；
The construction piling strtucture plate between the biting connecions bored concrete pile with deposited reinforced concrete pile section；
Connection is anchored by the piling strtucture plate that the second reserved steel bar forms the corresponding layer of second capping beam.
12. the construction method of foundation pit enclosure structure system as claimed in claim 10, which is characterized in that in excavation
In the process, the plain concrete perfusion pile cutoff in the biting connecions bored concrete pile is gradually removed；
The construction piling strtucture plate between the biting connecions bored concrete pile with deposited reinforced concrete pile section；
Connection is anchored by the piling strtucture plate that the second reserved steel bar forms the corresponding layer of second capping beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/092630 WO2020140405A1 (en) | 2018-11-12 | 2019-06-25 | Foundation pit retaining structure system and construction method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811338502 | 2018-11-12 | ||
| CN201811338502X | 2018-11-12 |
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| CN201910004095.7A Active CN109322313B (en) | 2018-11-12 | 2019-01-03 | Foundation pit enclosure structure system and its construction method |
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| CN109322313B (en) * | 2018-11-12 | 2019-03-29 | 上海建工集团股份有限公司 | Foundation pit enclosure structure system and its construction method |
| CN109701984A (en) * | 2019-02-27 | 2019-05-03 | 中交路桥建设有限公司 | A kind of environment-friendly type dregs hole mud retaining net |
| CN112900468A (en) * | 2021-02-02 | 2021-06-04 | 中铁八局集团有限公司 | Bridge foundation construction method suitable for complex geological conditions |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8913882D0 (en) * | 1989-06-16 | 1989-08-02 | Fondedile Foundations Ltd | Mini-piled retaining wall and a method for its construction |
| JPH10159094A (en) * | 1996-11-30 | 1998-06-16 | Kumagai Gumi Co Ltd | Timbering structure of earth retaining wall |
| CN101463605A (en) * | 2007-12-18 | 2009-06-24 | 上海市第五建筑有限公司 | New and old enclosures combined foundation pit enclosure method |
| CN201627207U (en) * | 2010-03-10 | 2010-11-10 | 浙江金典建设有限公司 | Supporting structure of pine pile of foundation pit of elevator shaft |
| CN103321231B (en) * | 2013-06-10 | 2015-11-25 | 叶长青 | Base pit stand construction |
| CN105178327A (en) * | 2015-07-17 | 2015-12-23 | 上海建工七建集团有限公司 | Composite retaining structure of foundation pit project and construction method thereof |
| CN105421488B (en) * | 2015-09-14 | 2017-07-14 | 上海建工七建集团有限公司 | The construction method of sole plate support replacement in the combined fender construction system of underground |
| CN105735325B (en) * | 2016-04-20 | 2018-01-23 | 山东大学 | A kind of intensive permanent support assembled basement structure system and construction method |
| CN106522241B (en) * | 2016-12-14 | 2019-04-12 | 上海建工一建集团有限公司 | The method for supporting deep foundation pit of the high basement structure of super large layer |
| KR102009077B1 (en) * | 2017-06-07 | 2019-08-08 | 신승혜 | Earth retaining wall construction method using castinplace concrete pile of impermeable peristyle type |
| CN207512750U (en) * | 2017-10-23 | 2018-06-19 | 上海市城市建设设计研究总院（集团）有限公司 | Along depth direction is multi-form, variable cross-section supporting construction |
| CN108951640A (en) * | 2018-07-02 | 2018-12-07 | 上海建工集团股份有限公司 | A kind of Extra-Deep Foundation Pit construction method |
| CN109322313B (en) * | 2018-11-12 | 2019-03-29 | 上海建工集团股份有限公司 | Foundation pit enclosure structure system and its construction method |
-
2019
- 2019-01-03 CN CN201910004095.7A patent/CN109322313B/en active Active
- 2019-06-25 WO PCT/CN2019/092630 patent/WO2020140405A1/en active Application Filing
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| CN109322313A (en) | 2019-02-12 |
| WO2020140405A1 (en) | 2020-07-09 |
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