CN108193696A - A kind of construction method of Deep Foundation Pit of Metro Stations building enclosure - Google Patents
A kind of construction method of Deep Foundation Pit of Metro Stations building enclosure Download PDFInfo
- Publication number
- CN108193696A CN108193696A CN201810206214.2A CN201810206214A CN108193696A CN 108193696 A CN108193696 A CN 108193696A CN 201810206214 A CN201810206214 A CN 201810206214A CN 108193696 A CN108193696 A CN 108193696A
- Authority
- CN
- China
- Prior art keywords
- foundation pit
- construction
- construction method
- deep foundation
- building enclosure
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- 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.)
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Classifications
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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
Abstract
A kind of construction method of Deep Foundation Pit of Metro Stations building enclosure, it is related to a kind of construction method, and in particular to a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure.The present invention constructs to solve the problems, such as that conventional construction method can not be normally carried out Deep Foundation Pit of Metro Stations building enclosure by height limitation.The present invention step be：Step 1: surveying setting-out；Step 2: construction canal formula cutting cement diaphragm wall；Step 3: wall coring test detects；Step 4: bored pile construction is proceeded by again after coring test judgement wall unconfined compressive strength is not less than 0.6Mpa；Step 5: drilling pouring pile hole is constructed；Step 6: drilling pouring pile hole detects；Step 7: the segmented lifting of borehole filling pile cage of reinforcement, installation, casting concrete；Step 8: cycle construction is until complete all water-stop curtain and cast-in-situ bored pile.The invention belongs to bridge construction fields.
Description
Technical field
The present invention relates to a kind of construction methods, and in particular to a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure,
Belong to bridge construction field.
Background technology
With the fast development of China's economy and society, the construction scale of urban track traffic is constantly expanding, subway
It stands mostly in bustling business district, various complexity surrounding enviroment affect Deep Foundation Ditch Construction of Metro safety.Usually
The building enclosure of deep basal pit goes along with sb. to guard him knot using diaphram wall or cast-in-situ bored pile composite cement soil mixing pile or other forms
Structure, but be restricted the construction area of requirement for height influence, using the conventional construction methods of these tradition because mechanical equipment height is high,
The influence of the factors such as hoisting height height and can not construct.
Invention content
The present invention can not be normally carried out Deep Foundation Pit of Metro Stations building enclosure to solve conventional construction method by height limitation
The problem of construction, and then propose a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure.
The present invention adopts the technical scheme that in order to solve the above problem：The present invention is as follows：
Step 1: surveying setting-out；
Step 2: construction canal formula cutting cement diaphragm wall；
Step 3: wall coring test detects；
It is filled Step 4: proceeding by drilling again after coring test judgement wall unconfined compressive strength is not less than 0.6Mpa
Note pile driving construction；
Step 5: drilling pouring pile hole is constructed；
Step 6: drilling pouring pile hole detects；
Step 7: the segmented lifting of borehole filling pile cage of reinforcement, installation, casting concrete；
Step 8: cycle construction is until complete all water-stop curtain and cast-in-situ bored pile.
The beneficial effects of the invention are as follows：1st, the present invention is suitable for being influenced that traditional conventional construction method can not be used to apply by limit for height
The deep footing groove enclosing structure of work；2nd, the present invention used provide one kind under the conditions of limit for height using cast-in-situ bored pile as supporting file
Structure+construction of the canal formula cutting cement soil continuous wall in outside as the compound Deep Foundation Pit of Metro Stations building enclosure of water-stop curtain
Method, by reasonable arrangement working procedure, strengthen Absent measures measure construct Deep Foundation Pit of Metro Stations building enclosure, by
Limit for height requires the area being affected especially suitable, ensure that the safety of construction.
Description of the drawings
Fig. 1 is the flow diagram of the present invention
Specific embodiment
Specific embodiment one：The present embodiment will be described with reference to Fig. 1, a kind of Deep Foundation Pit of Metro Stations described in present embodiment
The construction method of building enclosure is achieved by the steps of：
Step 1: surveying setting-out；
Step 2: construction canal formula cutting cement diaphragm wall；
Step 3: wall coring test detects；
It is filled Step 4: proceeding by drilling again after coring test judgement wall unconfined compressive strength is not less than 0.6Mpa
Note pile driving construction；
Step 5: drilling pouring pile hole is constructed；
Step 6: drilling pouring pile hole detects；
Step 7: the segmented lifting of borehole filling pile cage of reinforcement, installation, casting concrete；
Step 8: cycle construction is until complete all water-stop curtain and cast-in-situ bored pile.
Specific embodiment two：The present embodiment will be described with reference to Fig. 1, a kind of Deep Foundation Pit of Metro Stations described in present embodiment
Surveying setting-out is to determine that water-stop curtain is set according to foundation pit enclosure structure design drawing in the step of construction method of building enclosure one
Count contour line, canal formula of first constructing in the case of 12.5cm is put outside contour line cutting cement soil continuous wall water-stop curtain.
Specific embodiment three：The present embodiment will be described with reference to Fig. 1, a kind of Deep Foundation Pit of Metro Stations described in present embodiment
In the step of construction method of building enclosure two in work progress control machinery equipment dynamic grease head highness in 12.5m hereinafter, utilize
Self-contained multisection type inclination measurement system, both horizontally and vertically carries out high-precision Construction control in cutting box, it is ensured that
Into the verticality and quality of wall, and canal formula cutting cement soil continuous wall water-stop curtain is fully completed before bored pile construction.
Specific embodiment four：The present embodiment will be described with reference to Fig. 1, a kind of Deep Foundation Pit of Metro Stations described in present embodiment
It treats first to construct in the step of construction method of building enclosure three and completes wall section about 7 days or so to the position of wall upper, middle and lower three
Carry out its boring and coring, testing inspection wall unconfined compressive strength reaches some strength and can guarantee and bored in cast-in-situ bored pile
Canal formula cutting cement soil continuous wall water-stop curtain will not be destroyed into drill bit in the process and influences water-stagnating effect.
Specific embodiment five：The present embodiment will be described with reference to Fig. 1, a kind of Deep Foundation Pit of Metro Stations described in present embodiment
Cast-in-situ bored pile is constructed using " making a call to one jump stake method every two " in the step of construction method of building enclosure five.
Specific embodiment six：The present embodiment will be described with reference to Fig. 1, a kind of Deep Foundation Pit of Metro Stations described in present embodiment
Drilled-hole inspecting is carried out using contact instrument combination method in the step of construction method of building enclosure six, predominantly detects aperture, hole
The indexs such as deep, verticality and drilling pouring pile hole sediment thickness.
Specific embodiment seven：The present embodiment will be described with reference to Fig. 1, a kind of Deep Foundation Pit of Metro Stations described in present embodiment
Steel reinforcement cage merogenesis is fabricated to every section and is not more than while drilled-hole inspecting meets the requirements in the step of construction method of building enclosure seven
The segment of 8m is completed, and carries out segmented lifting, ensures loop wheel machine hoisting height in below 12.5m.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, though
So the present invention is disclosed above with preferred embodiment, however is not limited to the present invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, technical spirit according to the present invention,
Within the spirit and principles in the present invention, any simple modification, equivalent replacement and improvement for made to above example etc., still
Belong within the protection domain of technical solution of the present invention.
Claims (7)
1. a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure, it is characterised in that：A kind of Deep Foundation Pit of Metro Stations
The construction method of building enclosure is achieved by the steps of：
Step 1: surveying setting-out；
Step 2: construction canal formula cutting cement diaphragm wall；
Step 3: wall coring test detects；
Step 4: cast-in-situ bored pile is proceeded by again after coring test judgement wall unconfined compressive strength is not less than 0.6Mpa
Construction；
Step 5: drilling pouring pile hole is constructed；
Step 6: drilling pouring pile hole detects；
Step 7: the segmented lifting of borehole filling pile cage of reinforcement, installation, casting concrete；
Step 8: cycle construction is until complete all water-stop curtain and cast-in-situ bored pile.
2. a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure according to claim 1, it is characterised in that：Step 1
Middle surveying setting-out is to determine water-stop curtain design profile line according to foundation pit enclosure structure design drawing, and 12.5cm is put outside contour line
In the case of first construct canal formula cutting cement soil continuous wall water-stop curtain.
3. a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure according to claim 1, it is characterised in that：Step 2
In middle work progress control machinery equipment dynamic grease head highness in 12.5m hereinafter, utilizing multisection type deviational survey self-contained in cutting box
System both horizontally and vertically carries out high-precision Construction control, it is ensured that into the verticality and quality of wall, and canal formula is cut
Cement soil continuous wall water-stop curtain is cut to be fully completed before bored pile construction.
4. a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure according to claim 1, it is characterised in that：Step 3
In treat first to construct and complete wall section and its boring and coring, testing inspection wall were carried out to the position of wall upper, middle and lower three in about 7 days or so
Body unconfined compressive strength reaches some strength and can guarantee in cast-in-situ bored pile that in drilling process drill bit will not destroy canal formula and cuts
It cuts cement soil continuous wall water-stop curtain and influences water-stagnating effect.
5. a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure according to claim 1, it is characterised in that：Step 5
Middle cast-in-situ bored pile is constructed using " making a call to one jump stake method every two ".
6. a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure according to claim 1, it is characterised in that：Step 6
It is middle that drilled-hole inspecting is carried out using contact instrument combination method, predominantly detect aperture, hole depth, verticality and drilling pouring pile hole
The indexs such as sediment thickness.
7. a kind of construction method of Deep Foundation Pit of Metro Stations building enclosure according to claim 1, it is characterised in that：Step 7
Steel reinforcement cage merogenesis is fabricated to every section of segment no more than 8m and completes while middle drilled-hole inspecting meets the requirements, and carries out segmented hang
Dress ensures loop wheel machine hoisting height in below 12.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206214.2A CN108193696A (en) | 2018-03-13 | 2018-03-13 | A kind of construction method of Deep Foundation Pit of Metro Stations building enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206214.2A CN108193696A (en) | 2018-03-13 | 2018-03-13 | A kind of construction method of Deep Foundation Pit of Metro Stations building enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108193696A true CN108193696A (en) | 2018-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810206214.2A Pending CN108193696A (en) | 2018-03-13 | 2018-03-13 | A kind of construction method of Deep Foundation Pit of Metro Stations building enclosure |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322064A (en) * | 2011-06-30 | 2012-01-18 | 中铁二十局集团有限公司 | Construction method for underground diaphragm wall of deep foundation pit for subway station in collapsible loess areas |
| CN106759379A (en) * | 2017-01-25 | 2017-05-31 | 北京市政建设集团有限责任公司 | A kind of construction method of the asymmetric water-stop curtain of foundation ditch |
-
2018
- 2018-03-13 CN CN201810206214.2A patent/CN108193696A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322064A (en) * | 2011-06-30 | 2012-01-18 | 中铁二十局集团有限公司 | Construction method for underground diaphragm wall of deep foundation pit for subway station in collapsible loess areas |
| CN106759379A (en) * | 2017-01-25 | 2017-05-31 | 北京市政建设集团有限责任公司 | A kind of construction method of the asymmetric water-stop curtain of foundation ditch |
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Application publication date: 20180622 |