CN106836230A - A kind of foundation ditch point hole construction method - Google Patents
A kind of foundation ditch point hole construction method Download PDFInfo
- Publication number
- CN106836230A CN106836230A CN201611258305.8A CN201611258305A CN106836230A CN 106836230 A CN106836230 A CN 106836230A CN 201611258305 A CN201611258305 A CN 201611258305A CN 106836230 A CN106836230 A CN 106836230A
- Authority
- CN
- China
- Prior art keywords
- construction
- foundation ditch
- construction area
- cast
- construction method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
Abstract
The present invention discloses a kind of foundation ditch point hole construction method, including：Before excavation of foundation pit, one cast-in-situ bored pile is set in foundation pit enclosure foundation ditch is divided into the first construction area away from existed building and the rear construction area near existed building；Cast-in-situ bored pile sets one three axes agitating pile water-stop curtain near that side of existed building；One reinforced concrete circle beam is set in drill-pouring stake top to be connected with foundation pit enclosure collar tie beam；Away from setting some concrete piers between that side of existed building and reinforced concrete circle beam on cast-in-situ bored pile；Construction area postpones construction afterwards, and first construction area is excavated and set bracing members, and the position of correspondence concrete pier sets Reinforced Concrete Corbels on first construction area base plate；After the base plate of first construction area reaches design strength, setting shaped steel tiltedly throws support between concrete pier and Reinforced Concrete Corbels.It can ensure that the deep pit monitor after the construction of foundation ditch point hole, while improve efficiency of construction, save material.
Description
Technical field
The present invention relates to the realm of building construction, more particularly to a kind of foundation ditch point hole construction method.
Background technology
In construction, often there is foundation ditch periphery close to existing building, the presence of the existing building causes proposed base
Near the building enclosure construction of existed building side and its difficult in hole, and face to need to set large-scale steel trestle and carry out to support
Problem.
Therefore, how a kind of foundation pit enclosure security being able to ensure that after the construction of foundation ditch point hole is provided, while material is saved,
The foundation ditch of reduces cost point hole construction method, it has also become construction circle needs the technical problem of further improvement and optimization.
The content of the invention
It is an object of the invention to provide a kind of foundation ditch point hole construction method, it can be ensured that the foundation ditch after the construction of foundation ditch point hole
The security gone along with sb. to guard him, while improve efficiency of construction, saves material, reduces cost, while having avoided in the prior art needs
Problem of the large-scale steel trestle to support is set.
In order to solve the above technical problems, the present invention provides following technical scheme：
A kind of foundation ditch point hole construction method, comprises the following steps：
Step 1：Before excavation of foundation pit, one cast-in-situ bored pile is set in foundation pit enclosure foundation ditch is divided into away from existed building
First construction area and near existed building rear construction area；
Step 2：Cast-in-situ bored pile sets three parallel with cast-in-situ bored pile together axles and stirs near that side of existed building
Mix pile water stopping curtain；
Step 3：One reinforced concrete circle beam is set in drill-pouring stake top to be connected with foundation pit enclosure collar tie beam；
Step 4：Set some away between that side of existed building and reinforced concrete circle beam on cast-in-situ bored pile
Concrete pier；
Step 5：Construction area postpones construction afterwards, and first construction area carries out earth excavation and sets bracing members, and formerly applies
The position of correspondence concrete pier sets corresponding Reinforced Concrete Corbels on the base plate in work area domain；
Step 6：After the base plate of first construction area reaches design strength, between concrete pier and Reinforced Concrete Corbels
Shaped steel is set and tiltedly throws support.
Preferably, in the construction method of above-mentioned foundation ditch point hole, the construction method also includes：After step 6, first apply
After the basement structure in work area domain goes out zero, proceed the construction of the upper body structure of first construction area.
Preferably, in the construction method of above-mentioned foundation ditch point hole, the cast-in-situ bored pile is located on the center line of foundation ditch will
Foundation ditch is divided into first construction area and rear construction area, and the construction method also includes：After step 6, rear construction area is opened
Dig, the bracing members of first construction area are used after being overturn in rear construction area.
Preferably, in the construction method of above-mentioned foundation ditch point hole, base plate sets 3-4m post-cast strips wide at dividing wall.
Preferably, in the construction method of above-mentioned foundation ditch point hole, the concrete pier is horizontally orientated to along cast-in-situ bored pile
Spaced set.
Preferably, in the construction method of above-mentioned foundation ditch point hole, compaction grouting is spaced between Pile.
Preferably, in the construction method of above-mentioned foundation ditch point hole, it is embedded with the concrete pier for vertical connecting-type
Steel tiltedly throws the first pre-embedded steel slab of support, is embedded with Reinforced Concrete Corbels and tiltedly throws the second pre-buried of support for vertical connection shaped steel
Steel plate.
From techniques disclosed above scheme, compared with prior art, beneficial effects of the present invention are as follows：
(1) the foundation ditch point hole construction method that the present invention is provided, sets one cast-in-situ bored pile in foundation ditch, takes a point hole to apply
The scheme of work, using excavating stage by stage, the rear construction area near existed building postpones construction, away from the first construction of existed building
Region part basement structure can proceed and upper body structure construction after going out zero, not only ensure that foundation pit enclosure structure
Security, the existed building on periphery is protected, and improve efficiency of construction, while solve to need to set large-scale steel trestle
To the problem for supportting.
(2) present invention provide to foundation ditch point hole construction method, the bracing members in southern side can be turned over after point hole construction
Turn to use north side foundation ditch, so that, the rolled steel dosage of whole support system is greatly reduced, material has been saved, reduce cost.
Brief description of the drawings
Fig. 1 is the structural representation of the foundation ditch point hole construction method of one embodiment of the invention.
Fig. 2 is the distribution schematic diagram of cast-in-situ bored pile and three axes agitating pile water-stop curtain in one embodiment of the invention.
Fig. 3 is the assembling schematic diagram of the first pre-embedded steel slab and concrete pier in one embodiment of the invention.
Fig. 4 is the assembling schematic diagram of the second pre-embedded steel slab and Reinforced Concrete Corbels in one embodiment of the invention.
In figure：Construction area, 1- base plates, 2- post-cast strips, 3- cast-in-situ bored piles, 4- tri- after 100- elder generations construction area, 200-
Axle stirring pile water stopping curtain, 5- reinforced concrete circle beams, 6- foundation pit enclosures collar tie beam, 7- concrete piers, the pre-embedded steel slabs of 71- first,
8- Reinforced Concrete Corbels, the pre-embedded steel slabs of 81- second, 9- shaped steel are tiltedly thrown support, 10- bracing members, 11- compaction groutings point, 12- and are first applied
Work area domain excavating sideline.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.According to following explanation and right
Claim, advantages and features of the invention will become apparent from.Hereinafter this hair will be described in detail by cited embodiment combination accompanying drawing
Bright technology contents and feature.Need to illustrate in addition, accompanying drawing is compared in the form of simplifying very much and accurately using non-
Example, is only used to conveniently, lucidly aid in illustrating the purpose of the embodiment of the present invention.For sake of convenience, described below " on ",
The upper and lower direction of D score and accompanying drawing is consistent, but this can not turn into the limitation of technical solution of the present invention.
Fig. 1 to Fig. 4 is referred to, Fig. 1 is the structural representation of the foundation ditch point hole construction method of one embodiment of the invention, due to
When rear construction area 200 is constructed, three axes agitating pile water-stop curtain 4 does not retain, so, without signal three axes agitating pile in Fig. 1
Water-stop curtain 4, during due to rear 200 excavation and construction of construction area, bracing members 10 are turned to rear construction area from first construction area 100
200 use, therefore in Fig. 1, bracing members 10 have been shown in rear construction area 200；Fig. 2 is cast-in-situ bored pile in one embodiment of the invention
With the distribution schematic diagram of three axes agitating pile water-stop curtain；Fig. 3 is the first pre-embedded steel slab and concrete pier in one embodiment of the invention
Assembling schematic diagram；Fig. 4 is the assembling schematic diagram of the second pre-embedded steel slab and Reinforced Concrete Corbels in one embodiment of the invention.
Present embodiment discloses a kind of foundation ditch point hole construction method, foundation ditch is used for construct multiple story garage, the construction method
Comprise the following steps：
Step 1：Before excavation of foundation pit, set together in foundation pit enclosureCast-in-situ bored pile 3 is by foundation ditch
The first construction area 100 (being southern block in the present embodiment) being divided into away from existed building (not shown) is applied with after existed building
Work area domain 200 (being northern block in the present embodiment).In the present embodiment, cast-in-situ bored pile 3 is arranged in foundation ditch along east-west direction.
Step 2：Cast-in-situ bored pile 3 sets parallel with cast-in-situ bored pile 3 together near that side of existed buildingThree axes agitating pile water-stop curtain 4, as shown in figure 3, three axles stirring full circle set is beaten, the ratio of mud 1.5, three axles are stirred
Mixing pile water stopping curtain 4 can play sealing effect, it is ensured that the excavation of foundation pit safety of first construction area 100.Three axes agitating pile sealing curtain
Curtain 4, as the dividing wall of foundation ditch, a point hole construction is carried out so as to follow-up with cast-in-situ bored pile 3.
Step 3：One reinforced concrete circle beam 5 is set on the top of cast-in-situ bored pile 3 to be connected with foundation pit enclosure collar tie beam 6.
Step 4：If being set away between that side of existed building and reinforced concrete circle beam 5 on cast-in-situ bored pile 3
Dry concrete pier 7, sets 9 concrete piers 7 in the present embodiment.
Step 5：Construction area 200 postpones construction afterwards, and first construction area 100 carries out earth excavation and sets bracing members 10,
And the position of correspondence concrete pier 7 sets corresponding Reinforced Concrete Corbels 8 on the base plate 1 of first construction area 100.
Step 6：After the base plate 1 of first construction area reaches design strength, in concrete pier 7 and Reinforced Concrete Corbels 8
Between set shaped steel tiltedly throw support 9, in the present embodiment, set 9 root type steel tiltedly throw support 9.Tiltedly throwing support 9 by shaped steel can be to dividing wall
Interior cast-in-situ bored pile 3 is effectively supported, it is ensured that foundation ditch inner structure construction safety.
Preferably, in the construction method of above-mentioned foundation ditch point hole, the construction method also includes：After step 6, first apply
After the basement structure in work area domain 100 goes out zero, proceed the construction of the upper body structure of first construction area 100.So as to no
But the security of foundation pit enclosure structure is ensure that, the existed building on periphery is protected, and improves efficiency of construction, while solving
Need to set large-scale steel trestle to the problem that supports.
Preferably, in the construction method of above-mentioned foundation ditch point hole, the cast-in-situ bored pile 3 is located on the center line of foundation ditch will
Foundation ditch is divided into first construction area 100 and rear construction area 200, and the construction method also includes：After step 6, construct afterwards
Region 200 is excavated, and the bracing members 10 of first construction area 100 are used after being overturn in rear construction area 200, so that, significantly
The rolled steel dosage of whole support system is reduced, material has been saved, cost is reduced.
Preferably, in the construction method of above-mentioned foundation ditch point hole, base plate 1 sets 3-4m post-cast strips 2 wide at dividing wall, from
And the base plate 1 of first construction area 100 and rear construction area 200 is linked to be firm entirety.
Preferably, in the construction method of above-mentioned foundation ditch point hole, the concrete pier 7 is walked along the level of cast-in-situ bored pile 3
To spaced set.
Preferably, in the construction method of above-mentioned foundation ditch point hole, compaction grouting is spaced between cast-in-situ bored pile 3, to enter one
Step ensures security of foundation ditch construction, visible compaction grouting point 11 in Fig. 2.
Preferably, in the construction method of above-mentioned foundation ditch point hole, it is embedded with the concrete pier 7 for vertical connecting-type
Steel tiltedly throws the first pre-embedded steel slab 71 of support 9, as shown in figure 3, being embedded with Reinforced Concrete Corbels 8 oblique for vertical connection shaped steel
The second pre-embedded steel slab 82 of support 9 is thrown, as shown in Figure 4.That is, the first pre-embedded steel slab 71 and the second pre-embedded steel slab 72 respectively with
Shaped steel tiltedly throws the vertical connection of support 9, to improve support effect.
In sum, the present invention has the beneficial effect that：
(1) the foundation ditch point hole construction method that the present invention is provided, sets one cast-in-situ bored pile 3 in foundation ditch, takes a point hole
The scheme of construction, using excavating stage by stage, the rear construction area 200 near existed building postpones construction, away from existed building
First construction area part basement structure can proceed and upper body structure construction after going out zero, not only ensure that foundation ditch encloses
The security of protection structure, protects the existed building on periphery, and improves efficiency of construction, while solve to need to set large-scale
Problem of the steel trestle to support.
(2) present invention provide to foundation ditch point hole construction method, the bracing members 10 in southern side can be carried out after point hole construction
Upset uses north side foundation ditch, so that, the rolled steel dosage of whole support system is greatly reduced, material has been saved, reduce into
This.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (7)
1. a kind of foundation ditch point cheats construction method, it is characterised in that comprise the following steps：
Step 1：Before excavation of foundation pit, one cast-in-situ bored pile is set in foundation pit enclosure foundation ditch is divided into elder generation away from existed building
Construction area and the rear construction area near existed building；
Step 2：Cast-in-situ bored pile sets three axes agitating pile parallel with cast-in-situ bored pile together near that side of existed building
Water-stop curtain；
Step 3：One reinforced concrete circle beam is set in drill-pouring stake top to be connected with foundation pit enclosure collar tie beam；
Step 4：Away from setting some coagulations between that side of existed building and reinforced concrete circle beam on cast-in-situ bored pile
Knoll；
Step 5：Construction area postpones construction afterwards, and first construction area carries out earth excavation and sets bracing members, and formerly construction area
The position of correspondence concrete pier sets corresponding Reinforced Concrete Corbels on the base plate in domain；
Step 6：After the base plate of first construction area reaches design strength, set between concrete pier and Reinforced Concrete Corbels
Shaped steel tiltedly throws support.
2. foundation ditch as claimed in claim 1 point cheats construction method, it is characterised in that the construction method also includes：In step 6
Afterwards, after the basement structure of first construction area goes out zero, the construction of the upper body structure of first construction area is proceeded.
3. foundation ditch as claimed in claim 1 point cheats construction method, it is characterised in that cast-in-situ bored pile is located at the center line of foundation ditch
On foundation ditch is divided into first construction area and rear construction area, the construction method also includes：After step 6, rear construction area
Domain is excavated, and first construction area bracing members overturn after used in rear construction area.
4. foundation ditch as claimed in claim 1 point hole construction method, it is characterised in that at the dividing wall base plate set 3-4m it is wide after
Pour band.
5. foundation ditch as claimed in claim 1 point cheats construction method, it is characterised in that the concrete pier is along cast-in-situ bored pile
It is horizontally orientated to spaced set.
6. foundation ditch as claimed in claim 1 point cheats construction method, it is characterised in that densification note is spaced between Pile
Slurry.
7. foundation ditch as claimed in claim 1 point cheats construction method, it is characterised in that be embedded with for hanging down on the concrete pier
Direct-connected direct type steel tiltedly throws the first pre-embedded steel slab of support, is embedded with Reinforced Concrete Corbels and tiltedly throws support for vertical connection shaped steel
Second pre-embedded steel slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258305.8A CN106836230A (en) | 2016-12-30 | 2016-12-30 | A kind of foundation ditch point hole construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258305.8A CN106836230A (en) | 2016-12-30 | 2016-12-30 | A kind of foundation ditch point hole construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106836230A true CN106836230A (en) | 2017-06-13 |
Family
ID=59112827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611258305.8A Pending CN106836230A (en) | 2016-12-30 | 2016-12-30 | A kind of foundation ditch point hole construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106836230A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746618A (en) * | 2020-12-29 | 2021-05-04 | 上海建工七建集团有限公司 | Construction method suitable for oblique tracking grouting of natural foundation |
| CN114673162A (en) * | 2022-04-15 | 2022-06-28 | 中铁上海设计院集团有限公司 | Underground vehicle base foundation pit construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4449532B2 (en) * | 2004-03-29 | 2010-04-14 | 株式会社大林組 | Rapid construction method of shaft by convex joint of deep bottom shaft |
| CN102121253A (en) * | 2010-12-21 | 2011-07-13 | 上海市第一建筑有限公司 | Stepped backfill construction method for overlarge underground structure |
| CN103321230A (en) * | 2013-07-12 | 2013-09-25 | 上海隧道工程股份有限公司 | Excavation method for deep and big foundation pit in long-distance crossing field for shallow-buried subway |
| CN203546727U (en) * | 2013-10-09 | 2014-04-16 | 上海市建工设计研究院有限公司 | Partition structure for controlling deformation of deep and large foundation pit |
| CN104110038A (en) * | 2014-07-29 | 2014-10-22 | 上海市建工设计研究院有限公司 | Construction method for large-area pit support structure in deep-sludge type soft soil area |
-
2016
- 2016-12-30 CN CN201611258305.8A patent/CN106836230A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4449532B2 (en) * | 2004-03-29 | 2010-04-14 | 株式会社大林組 | Rapid construction method of shaft by convex joint of deep bottom shaft |
| CN102121253A (en) * | 2010-12-21 | 2011-07-13 | 上海市第一建筑有限公司 | Stepped backfill construction method for overlarge underground structure |
| CN103321230A (en) * | 2013-07-12 | 2013-09-25 | 上海隧道工程股份有限公司 | Excavation method for deep and big foundation pit in long-distance crossing field for shallow-buried subway |
| CN203546727U (en) * | 2013-10-09 | 2014-04-16 | 上海市建工设计研究院有限公司 | Partition structure for controlling deformation of deep and large foundation pit |
| CN104110038A (en) * | 2014-07-29 | 2014-10-22 | 上海市建工设计研究院有限公司 | Construction method for large-area pit support structure in deep-sludge type soft soil area |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746618A (en) * | 2020-12-29 | 2021-05-04 | 上海建工七建集团有限公司 | Construction method suitable for oblique tracking grouting of natural foundation |
| CN114673162A (en) * | 2022-04-15 | 2022-06-28 | 中铁上海设计院集团有限公司 | Underground vehicle base foundation pit construction method |
| CN114673162B (en) * | 2022-04-15 | 2023-09-22 | 中铁上海设计院集团有限公司 | Underground vehicle foundation pit construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203320532U (en) | Protection device of nearby pile foundation close to deep foundation pit | |
| CN101914925A (en) | Basement by using optimized composite prefabricated arch wall as external wall | |
| CN105951711A (en) | Enclosing construction method of underground continuous wall of seashore power station | |
| CN105239578B (en) | Water-rich sand layer deep foundation pit underwater construction method | |
| CN108589771A (en) | One kind having runed underground station increasing layer transfer node construction method | |
| CN104563131B (en) | Rectangular enclosure pile, and construction method using rectangular enclosure pile as main structure | |
| CN103882869A (en) | Inclined supporting pile structure for foundation pit support and construction method thereof | |
| CN207597395U (en) | The foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles | |
| CN105089670B (en) | Construction method for enlarging and excavating subway station on basis of parallel interval shield tunnel | |
| CN101418569B (en) | Optimization complex arch wall combining prefabricated arch leaf, support and major structure | |
| CN102653945A (en) | Foundation reinforcing and replacing structure and construction method thereof | |
| CN206706772U (en) | A kind of double steel sheet pile supporting construction | |
| CN108797637A (en) | Prefabricated board combined cast-in-situ concrete considers the underground pipe gallery construction method of structure and ground | |
| CN108867692A (en) | The protection of city big cross section open trench tunnel Nearby Structure and tunnel foundation pit method for digging | |
| CN205557537U (en) | Supporting structure of foundation pit | |
| CN110004991A (en) | Underground structure anti-floating system and construction method based on raised type tangs plate | |
| CN101824825B (en) | Deep foundation pit open cutting construction method | |
| CN106836230A (en) | A kind of foundation ditch point hole construction method | |
| CN107558477B (en) | Supporting structure combining foundation pit and side slope and construction method | |
| CN110144936A (en) | One kind adjoining the unilateral formwork of support pile outer wall of basement and construction method | |
| CN203768914U (en) | Foundation pit bracing diagonal support pile structure | |
| CN105113513B (en) | Anti-seepage foundation pit supporting structure and construction method | |
| CN204326080U (en) | A kind of next-door neighbour's existing building pit maintenance soil structure | |
| CN213358679U (en) | Water buoyancy balance system of subway upper cover structure | |
| CN207228173U (en) | A kind of underground project waterproof structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |
|
| WD01 | Invention patent application deemed withdrawn after publication |