CN107476315A - A kind of prefabricated component and its construction method being directed to close to type foundation ditch - Google Patents
A kind of prefabricated component and its construction method being directed to close to type foundation ditch Download PDFInfo
- Publication number
- CN107476315A CN107476315A CN201710798217.5A CN201710798217A CN107476315A CN 107476315 A CN107476315 A CN 107476315A CN 201710798217 A CN201710798217 A CN 201710798217A CN 107476315 A CN107476315 A CN 107476315A
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- Prior art keywords
- foundation ditch
- groove
- construction
- close
- prefabricated
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- 238000010276 construction Methods 0.000 title claims abstract description 44
- 238000009412 basement excavation Methods 0.000 claims abstract description 23
- 238000013461 design Methods 0.000 claims description 7
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 6
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 3
- 239000004574 high-performance concrete Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000008092 positive effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000209202 Bromus secalinus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000000725 suspension Substances 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
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Landscapes
- 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)
- Sewage (AREA)
Abstract
The invention discloses a kind of prefabricated component and its construction method being directed to close to type foundation ditch, including the supporting construction being arranged between hollow place and pitting, supporting construction is that the pattern of diaphram wall is combined into by some continuous prefabricated unit bodies；The excavation axis of measurement direction point position new supporting structure between small-scale pit and Large Foundation Pit, construction guidance groove is set, the excavation of groove is carried out with groove excavating machinery, it is rear to carry out New Supporting lifting component placement, then carry out the stage excavation of foundation ditch.The present invention reinforces for the aqueous high soft foundation of complexity has significant advantage, and technique is simple, positive effect, saves material, low engineering cost, greatly shortens the construction period.
Description
Technical field
The present invention relates to civil engineering pattern foundation pit supporting structure field, specifically it is a kind of be directed to close to type foundation ditch prefabricated component and
Its construction method.
Background technology
With the progress faster of urbanization, increasing personnel enter urban life, cause the tight of town site
.In order to make full use of the underground space so that the construction of underground engineering be unable to do without deep-foundation pit engineering, and the construction of engineering is more
It is intensive, and there are various foundation ditch patterns, increasing foundation ditch group occurs.These foundation ditches group cheats to be cheated in even hole, hole
Complicated foundation ditch group bring the problem of very big to supporting.Especially common and prominent is to be close to type foundation ditch, popular definition
Adjacent small one and large one two close foundation ditches.
For Adjacent Pit group or close to for type foundation ditch, the excavation of closing foundation ditch will certainly be to the supporting of Adjacent Pit
The displacement of structure has an impact, and excavate sequencing and stage excavation number can equally cause Adjacent Pit supporting
The safety of structure.Simultaneously as the different stage excavation depth of foundation ditch group's close proximity or sequence of excavation can cause underground water
The crossfire in foundation ditch group, the security of foundation ditch is impacted.
At present, the traditional approach for pattern foundation pit supporting structure has soil-nail wall support, cement soil wall supporting, campshed supporting and underground
The support patterns such as diaphragm wall, few support patterns being directed to close to type foundation ditch.Soil-nail wall support and cement soil wall supporting one
As be applied to the foundation ditch of shallow-layer, campshed adds suspension roof support to be not suitable for adjacent close street hole group, campshed supporting can play and
Good support action, but need to set interlocking pile or double-row pile if necessary to supporting and sealing effect, it will certainly increase
Construction cost and duration, although cost is very high very well for diaphram wall effect.In summary, it is not particularly suitable for for tight
The supporting scheme of adjacent type foundation ditch.
The content of the invention
It is an object of the invention to provide a kind of prefabricated component and its construction method being directed to close to type foundation ditch, to solve
The problem of being proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of prefabricated component being directed to close to type foundation ditch, including the supporting construction being arranged between hollow place and pitting, institute
It is that the pattern of diaphram wall is combined into by some continuous prefabricated unit bodies to state supporting construction, and prefabricated unit body is mixed by high-performance
Solidifying soil combines with glass fiber-reinforced polymer；Be respectively equipped with slot and inserting column at the top and bottom of each prefabricated unit body, slot and
Inserting column can be overlapped staggeredly, and the part overlapped above and below slot and inserting column forms the circular opening of up/down perforation；Each prefabricated unit
Being respectively arranged on the left side and the right side for body can be engaged the close fin of overlap joint and groove.
As the further scheme of the present invention：The slot and inserting column are in the top and bottom difference of a prefabricated unit body
Provided with two, each prefabricated unit body is set to be cross-linked into the structural style of a complete diaphram wall.
As the further scheme of the present invention：The inserting column is arranged to the hollow cylinder of protrusion, and slot is equally set
Into hollow cylinder, and there is step, what the inserting column that lower part protrudes can be tightly injects on the step in upper socket.
As the further scheme of the present invention：The cross section of the fin and groove is semicircle, and left side protrusion is convex
Rib can be tightly overlapped with the groove part on right side.
It is a kind of to be directed to the construction method close to the prefabricated component of type foundation ditch, comprise the following steps：
A. according to design requirement, surveying setting-out, the position of small-scale pit and Large Foundation Pit, and the drilling of foundation ditch periphery are determined
The position of bored concrete pile；
B. after the completion of Large Foundation Pit and small-scale pit periphery bored pile construction, between small-scale pit and Large Foundation Pit
The excavation axis of measurement direction point position new supporting structure；
C. according to axis setting construction guidance groove is excavated, after guide groove is constructed, groove is carried out with groove excavating machinery
Excavation, excavate to design depth under less than 1.5 meters；
D. after the completion of channel excavation, New Supporting lifting component placement is carried out, first hangs bottom component, bottom component
After the completion of hanging, upper strata component staggeredly is hung successively, upper strata component is buckled on two components of lower floor；
E. component is hung onto concordant with construction site or beyond construction site plane；
F. the stage excavation of foundation ditch is carried out；
G. as the excavation of Large Foundation Pit and small-scale pit is completed, support unit can hang out repetition with lifting appliance to be made
With groove is with native packing containing compacting.
Compared with prior art, the beneficial effects of the invention are as follows：1) present invention incorporates the thought of precast assembly supporting, make
Close to there is firmer support system between type foundation ditch, avoid Large Foundation Pit and lateral displacement occurs to small-scale pit side and oozes
Water, and then avoid surrounding soil that the disasters such as sedimentation occur；2) present invention runs through reinforcing bar by increasing in prefab-form, improves
The entire compression intensity of foundation ditch, so as to improve the anti-shearing resistance stability of the entirety of foundation ditch；3) high-performance that the present invention uses is mixed
Native can have very high intensity and good density with glass fiber-reinforced polymer material, combine the entirety that can improve foundation ditch
Stability；4) use of the present invention is prefabricated outside the venue, on-site hoisting lay mode, the duration not only shortened and reduce to construction
The occupancy in place；5) present invention close to hole soft soil foundation for having good support water stop effect, and construction technology is simple, cost
It is low, and may be reused.
The present invention reinforces for the aqueous high soft foundation of complexity has significant advantage, and technique is simple, and effect is bright
It is aobvious, material, low engineering cost are saved, greatly shortens the construction period.
Brief description of the drawings
Fig. 1 is close to type foundation ditch plan.
Fig. 2 is close to the supporting construction plan between type foundation ditch.
Fig. 3 is the structural representation of prefabricated unit body in supporting construction.
Fig. 4 is the composite assembly design sketch of prefabricated unit body.
Fig. 5 is the applicating flow chart of prefabricated component.
In figure：1- hollow places, 2- pittings, 3- supporting construction, 4- prefabricated unit bodies, 5- slots, 6- inserting columns, 7- fins, 8- are recessed
Groove.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1~5, in the embodiment of the present invention, a kind of prefabricated component being directed to close to type foundation ditch, including be arranged at
Supporting construction 3 between hollow place 1 and pitting 2, the supporting construction 3 are to be combined into underground by some continuous prefabricated unit bodies 4
The pattern of diaphragm wall, prefabricated unit body 4 are combined by high performance concrete and glass fiber-reinforced polymer, not only make use of high-performance to mix
The advantages of the advantages of native intensity is high, density is good combines good glass fiber-reinforced polymer pull resistance and low cost again is coagulated, is had very high
Intensity and density；The top and bottom of each prefabricated unit body 4 are respectively equipped with slot 5 and inserting column 6, the slot 5 and insert
Post 6 is respectively equipped with two in the top and bottom of a prefabricated unit body 4, and slot 5 and inserting column 6 can be overlapped staggeredly, be made each pre-
Cell cube 4 processed connects into the structural style of a complete diaphram wall, and the part shape that slot 5 and inserting column overlap about 6
Into the circular opening of up/down perforation, it is positioned over close between hole, not only making have firmer support system close to type foundation ditch, together
When avoid the sidesway of foundation ditch in digging process, and sealing can be played a part of, avoided because earth's surface is sunk caused by excavation
Dangerous caused by drop and lateral displacement of pit, the inserting column 6 is arranged to the hollow cylinder of protrusion, and slot 5 is similarly arranged to hollow
Cylinder, and there is step, on the step in reeve upper socket 5 that the inserting column 6 that lower part protrudes can tightly；It is each prefabricated
Being respectively arranged on the left side and the right side for cell cube 4 can be engaged the close fin 7 of overlap joint and groove 8, the horizontal stroke of the fin 7 and groove 8
Section is semicircle, and the fin 7 that protrudes of left side can tightly and the part of groove 8 on right side overlap joint, and the supporting construction 3 can be
Make outside the venue, scene carries out lifting placement, substantially reduces the duration, reduces the occupancy to construction site, and excavation of foundation pit
After the completion of may be reused.
This is directed to the construction method close to the prefabricated component of type foundation ditch, comprises the following steps：
A. according to design requirement, surveying setting-out, the position of small-scale pit and Large Foundation Pit, and the drilling of foundation ditch periphery are determined
The position of bored concrete pile；
B. after the completion of Large Foundation Pit and small-scale pit periphery bored pile construction, between small-scale pit and Large Foundation Pit
The excavation axis of measurement direction point position new supporting structure；
C. according to axis setting construction guidance groove is excavated, after guide groove is constructed, groove is carried out with groove excavating machinery
Excavation, excavate to design depth under less than 1.5 meters；
D. after the completion of channel excavation, New Supporting lifting component placement is carried out, first hangs bottom component, bottom component
After the completion of hanging, upper strata component staggeredly is hung successively, upper strata component is buckled on two components of lower floor；
E. component is hung onto concordant with construction site or beyond construction site plane；
F. the stage excavation of foundation ditch is carried out；
G. as the excavation of Large Foundation Pit and small-scale pit is completed, support unit can hang out repetition with lifting appliance to be made
With groove is with native packing containing compacting.
1) present invention incorporates the thought of precast assembly supporting, make, close to there is firmer support system between type foundation ditch, to keep away
Exempt from Large Foundation Pit and lateral displacement and infiltration occurs to small-scale pit side, and then avoid surrounding soil that the disasters such as sedimentation occur；
2) present invention is by increasing the entire compression intensity for running through reinforcing bar, improving foundation ditch in prefab-form, so as to improve foundation ditch
The anti-shearing resistance stability of entirety；3) high-performance that the present invention uses is mixed native to have very high intensity with glass fiber-reinforced polymer material
With good density, the resistance to overturning that can improve foundation ditch is combined；4) use of the present invention is prefabricated outside the venue, and scene is hung
The mode laid is filled, the duration not only shortened but also reduces the occupancy to construction site；5) present invention for close to hole weak soil
Ground has good support water stop effect, and construction technology is simple, low cost, and may be reused.
The present invention reinforces for the aqueous high soft foundation of complexity has significant advantage, and technique is simple, and effect is bright
It is aobvious, material, low engineering cost are saved, greatly shortens the construction period.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, not
On the premise of departing from present inventive concept, several modifications and improvements can also be made, these should also be considered as the protection model of the present invention
Enclose, these effects and practical applicability for implementing all without the influence present invention.
Claims (5)
1. a kind of prefabricated component being directed to close to type foundation ditch, including the supporting construction being arranged between hollow place and pitting, it is special
Sign is that the supporting construction is that the pattern of diaphram wall, prefabricated unit body are combined into by some continuous prefabricated unit bodies
Combined by high performance concrete and glass fiber-reinforced polymer；Slot is respectively equipped with the top and bottom of each prefabricated unit body and is inserted
Post, slot and inserting column can be overlapped staggeredly, and the part overlapped above and below slot and inserting column forms the circular opening of up/down perforation；Each
Being respectively arranged on the left side and the right side for prefabricated unit body can be engaged the close fin of overlap joint and groove.
2. the prefabricated component according to claim 1 being directed to close to type foundation ditch, it is characterised in that the slot and inserting column
Two are respectively equipped with the top and bottom of a prefabricated unit body, each prefabricated unit body is cross-linked into one completely
The structural style of diaphram wall.
3. the prefabricated component according to claim 1 or 2 being directed to close to type foundation ditch, it is characterised in that the inserting column is set
Prominent hollow cylinder is set to, slot is similarly arranged to hollow cylinder, and has step, the inserting column that lower part protrudes
On step in reeve upper socket that can be tightly.
4. the prefabricated component according to claim 3 being directed to close to type foundation ditch, it is characterised in that the fin and groove
Cross section be semicircle, and the fin that protrudes of left side can tightly and the groove part on right side overlap joint.
5. a kind of be directed to the construction method close to the prefabricated component of type foundation ditch, comprise the following steps：
A. according to design requirement, surveying setting-out, the position of small-scale pit and Large Foundation Pit, and foundation ditch periphery drill-pouring are determined
The position of stake；
B. Large Foundation Pit between small-scale pit and Large Foundation Pit with after the completion of the bored pile construction of small-scale pit periphery, measuring
The excavation axis of direction point position new supporting structure；
C. according to axis setting construction guidance groove is excavated, after guide groove is constructed, opening for groove is carried out with groove excavating machinery
Dig, excavate to less than 1.5 meters under design depth；
D. after the completion of channel excavation, New Supporting lifting component placement is carried out, first hangs bottom component, bottom component is hung
After the completion of, upper strata component staggeredly is hung successively, upper strata component is buckled on two components of lower floor；
E. component is hung onto concordant with construction site or beyond construction site plane；
F. the stage excavation of foundation ditch is carried out；
G. as the excavation of Large Foundation Pit and small-scale pit is completed, support unit can hang out reuse, ditch with lifting appliance
Groove is with native packing containing compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798217.5A CN107476315A (en) | 2017-09-07 | 2017-09-07 | A kind of prefabricated component and its construction method being directed to close to type foundation ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798217.5A CN107476315A (en) | 2017-09-07 | 2017-09-07 | A kind of prefabricated component and its construction method being directed to close to type foundation ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107476315A true CN107476315A (en) | 2017-12-15 |
Family
ID=60583577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710798217.5A Pending CN107476315A (en) | 2017-09-07 | 2017-09-07 | A kind of prefabricated component and its construction method being directed to close to type foundation ditch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107476315A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236245A (en) * | 2020-01-10 | 2020-06-05 | 深圳市蛇口招商港湾工程有限公司 | Small foundation pit excavation protection structure and construction method thereof |
| CN111364473A (en) * | 2018-12-26 | 2020-07-03 | 中国矿业大学(北京) | Deep basal pit modularization supporting construction |
| CN114606951A (en) * | 2022-03-03 | 2022-06-10 | 北京大圣智造科技有限公司 | Intelligent assembly type inverted hanging structure in foundation pit and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09170229A (en) * | 1995-12-20 | 1997-06-30 | Chem Grouting Co Ltd | Construction method for cast-in-situ diaphragm wall |
| JP2006125141A (en) * | 2004-11-01 | 2006-05-18 | Marutoku Kigyo:Kk | Underground continuous wall construction method |
| CN106245656A (en) * | 2016-08-02 | 2016-12-21 | 东北大学 | A kind of construction method of the supporting improving sidesway for master and slave type foundation ditch group |
| CN208501694U (en) * | 2017-09-07 | 2019-02-15 | 高文华 | A kind of prefabricated component for close to type foundation pit |
-
2017
- 2017-09-07 CN CN201710798217.5A patent/CN107476315A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09170229A (en) * | 1995-12-20 | 1997-06-30 | Chem Grouting Co Ltd | Construction method for cast-in-situ diaphragm wall |
| JP2006125141A (en) * | 2004-11-01 | 2006-05-18 | Marutoku Kigyo:Kk | Underground continuous wall construction method |
| CN106245656A (en) * | 2016-08-02 | 2016-12-21 | 东北大学 | A kind of construction method of the supporting improving sidesway for master and slave type foundation ditch group |
| CN208501694U (en) * | 2017-09-07 | 2019-02-15 | 高文华 | A kind of prefabricated component for close to type foundation pit |
Non-Patent Citations (1)
| Title |
|---|
| 北京城建集团有限责任公司: "《建筑施工实例应用手册 5》", 中国建筑工业出版社, pages: 1005 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364473A (en) * | 2018-12-26 | 2020-07-03 | 中国矿业大学(北京) | Deep basal pit modularization supporting construction |
| CN111236245A (en) * | 2020-01-10 | 2020-06-05 | 深圳市蛇口招商港湾工程有限公司 | Small foundation pit excavation protection structure and construction method thereof |
| CN114606951A (en) * | 2022-03-03 | 2022-06-10 | 北京大圣智造科技有限公司 | Intelligent assembly type inverted hanging structure in foundation pit and construction method thereof |
| CN114606951B (en) * | 2022-03-03 | 2024-01-12 | 北京大圣智造科技有限公司 | Intelligent assembled inverted hanging structure in foundation pit and construction method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20171215 |