CN105649086B - Deep inverse formula construction method after a kind of underground concrete structure is first shallow - Google Patents
Deep inverse formula construction method after a kind of underground concrete structure is first shallow Download PDFInfo
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- CN105649086B CN105649086B CN201410628728.9A CN201410628728A CN105649086B CN 105649086 B CN105649086 B CN 105649086B CN 201410628728 A CN201410628728 A CN 201410628728A CN 105649086 B CN105649086 B CN 105649086B
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Abstract
Deep inverse formula construction method after a kind of underground concrete structure is first shallow, it is characterised in that comprise the following steps：A excavates adjacent shallow foundation hole（2）, shallow foundation hole of only constructing（2）The shallow foundations such as concrete foundation base plate, b are cheated（2）Concrete foundation base plate, reaches deep pit excavation after some strength（1）, the step absolute altitude of two grades of slopes of deep basal pit is positioned at shallow foundation hole bottom elevation location, c deep basal pits（1）Excavate simultaneously, in the shallow foundation hole constructed（2）Concrete foundation base plate, after the completion of d deep basal pits are poured, starts construction shallow foundation hole（2）The top of concrete foundation base plate, in shallow foundation hole（2）The elements of a fix are remeasured on concrete foundation base plate, then the elements of a fix to deep basal pit top concrete structure remeasure unwrapping wire, correction in time and correction when the elements of a fix of deep basal pit top concrete structure are made.The present invention is perfectly safe with deep basal pit, it is ensured that shallow foundation quality is unaffected and engineering is more economical, more efficiently advantage.
Description
Technical field
It is a kind of underground concrete structure specifically the present invention relates to a kind of construction method on buried concrete basis
Deep inverse formula construction method after first shallow.
Background technology
Underground concrete structure or Equipment Foundations etc., sequence of construction definitely must be shallow after first depth, i.e., first construct adjacent
Deep basal pit, shallower foundation ditch of then constructing again, the main cause of do so is：
1st, because underground water and complicated geology etc. need to take the series of measures such as base pit dewatering, supporting, maintenance, therefore foundation ditch is deeper
Construction is more difficult, and foundation ditch is more deep more dangerous, so deep basal pit first arranges construction as usual；
If shallow foundation the 2nd, is first constructed, then deep base of constructing, due to deep basal pit heavy excavation, the shallow foundation constructed certainly will be caused
（Structure）It is subjected to displacement and differential settlement, until heavy damage.
Due to above-mentioned main cause, in order to reduce construction risk, arrange shallow after first depth, but due to not going out figure order not
Match somebody with somebody, or procedure arrangement is difficult and deep foundation pit support condition is not in place the special circumstances such as needs to wait for, and is accomplished by try to meet the deadline for the project
Deep inverse formula construction method after a kind of underground concrete structure is first shallow.
The content of the invention
The purpose of the present invention, is a kind of inverse formula of the first shallow rear depth of underground concrete structure for proposing that deep basal pit is perfectly safe
Construction method.
It is another object of the present invention to propose a kind of to ensure that the shallow foundation quality first constructed is unaffected（I.e. center, mark
It is high to meet code requirement）Underground concrete structure it is first shallow after deep inverse formula construction method.
A further object of the present invention, be propose it is a kind of more economical, deep after more efficiently underground concrete structure is first shallow
Inverse formula construction method.
To achieve the above object, technical solution of the invention is：
Deep inverse formula construction method after a kind of underground concrete structure is first shallow, it is characterised in that comprise the following steps：
The adjacent shallow foundation hole of a, excavation, only construction shallow foundation hole concrete foundation base plate, or column foundation cushion cap is not constructed and is arrived
The superstructure in shallow foundation hole；The concrete foundation base plate, or column foundation cushion cap has been poured during conserving after concrete and not torn open
Mould, as the stabilising system in deep foundation pit slope, consolidates excavation slope；
B, etc. shallow foundation hole concrete foundation base plate, or column foundation cushion cap poured after 4 angel's concrete reach some strength,
Deep pit excavation, shallow foundation hole bottom elevation location is positioned at by the step absolute altitude of two grades of slopes of deep basal pit；
C, deep pit digging simultaneously, cloth on concrete foundation base plate, or column foundation cushion cap are cheated in the shallow foundation constructed
If displacement and settlement monitoring point, it is monitored by " the pit retaining monitoring scheme " separately worked out, to control deep pit construction
During to shallow foundation hole coordinate influence degree；
After the completion of d, deep basal pit are poured, start the top that construction shallow foundation cheats concrete foundation base plate, or column foundation cushion cap
Top, but must first be in shallow foundation hole concrete foundation base plate, or column foundation cushion cap on remeasure the elements of a fix, then
The elements of a fix to deep basal pit top concrete structure remeasure unwrapping wire, when with shallow foundation cheat concrete foundation base plate, Huo Zhezhu
When the former coordinate of foundation platform has off normal, correction in time and correction when the elements of a fix of deep basal pit top concrete structure are made.
Deep inverse formula construction method can also use following technical measures after underground concrete structure of the invention is first shallow
Further to realize.
Foregoing method, wherein the off normal of the former coordinate includes center, absolute altitude deviation.
After adopting the above technical scheme, inverse formula construction method deep after underground concrete structure of the invention is first shallow with
Lower advantage：
1st, deep basal pit is perfectly safe；
2nd, ensure that the shallow foundation quality first constructed is unaffected（I.e. center, absolute altitude etc. meet code requirement）；
3rd, engineering is more economical, faster.
Brief description of the drawings
Fig. 1 is basic arranged in parallel for two different levels of the embodiment of the present invention, and shallow foundation cushion cap is constructed in advance, with it
Bottom surface as deep basal pit classification step structural representation.
In figure：1 deep basal pit, 2 shallow foundations hole, 3 column foundation cushion caps.
Specific embodiment
With reference to embodiments and its accompanying drawing to the present invention illustrate further.
Embodiment 1
Deep inverse formula construction method after underground concrete structure of the invention is first shallow, it is mixed for the underground for having engineering pile load-bearing
Xtah Crude Clay structure, it is characterised in that comprise the following steps：
A, first excavate adjacent shallow foundation hole 2, but the substructure that can only construct column foundation cushion cap 3, it is impossible to construction to top
Structure, bottom poured during conserving after concrete should not form removal, it is overall as the stabilising system in deep foundation pit slope, consolidate base
Hole side slope.
B, treat that 4 days or so concrete reach some strength, piping lane deep basal pit is excavated, by 1 two grades of slopes of piping lane deep basal pit
Step absolute altitude is positioned at shallow foundation and cheats 2 bottom elevation locations.
Referring now to Fig. 1, Fig. 1 is basic arranged in parallel, the shallow foundation cushion cap of two different levels of the embodiment of the present invention
Construction in advance, using its bottom surface as the structural representation of the classification step of piping lane deep basal pit, so construction makes piping lane deep basal pit
The firm safety of one side slope.
C, deep pit digging simultaneously, in the shallow structure constructed（Basis）Displacement is laid on base plate or cushion cap and sedimentation is supervised
Measuring point, is monitored by " the pit retaining monitoring scheme " separately worked out, during controlling deep pit construction, to be cheated to shallow foundation
Coordinate influence degree.
After the completion of d, deep basal pit are poured, could later start shallow structure of constructing（Basis）Top, but must first be in shallow
The elements of a fix are remeasured on foundation platform.This procedure is the key of inverse formula construction method, and reason is：Deep pit construction mistake
Cheng Zhong, adjacent shallow foundation（Structure）Different degrees of displacement and sedimentation is had, resulting center, absolute altitude deviation must be upper
Portion basis（Structure）Digested, because top is basic（Structure）Other facilities such as electromechanical equipment, steel construction are installed, such as
Fruit foundation bolt, rim of a cup thereon etc. produces relatively large deviation, cannot just ensure to install accurate, it is therefore necessary to top basis（Knot
Structure）The elements of a fix remeasure unwrapping wire, when the former coordinate with lower raft, cushion cap has off normal, can in time be rectified a deviation on top
And correction.
The present invention has substantive distinguishing features and significant technological progress, depth after underground concrete structure of the invention is first shallow
Inverse formula construction method when piping lane deep basal pit is adjacent with shallower base for post cushion cap, construct afterwards by the base for post cushion cap for first having constructed shallower
Deep base tube corridor.After piping lane construction completion is poured, the rim of a cup on base for post top of later constructing again（For installing steel column）Part.This hair
There is deep inverse formula construction method deep basal pit to be perfectly safe after bright underground concrete structure is first shallow, it is ensured that the shallow foundation first constructed
Quality is unaffected（I.e. center, absolute altitude etc. meet code requirement）, more efficiently advantage more economical with engineering.
Above example is used for illustrative purposes only, rather than limitation of the present invention, about the technology people of technical field
Member, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, it is all equivalent
Technical scheme should also belong to scope of the invention, should be limited by each claim.
Claims (2)
1. deep inverse formula construction method after a kind of underground concrete structure is first shallow, it is characterised in that comprise the following steps：
The adjacent shallow foundation hole of a, excavation（2）, shallow foundation hole of only constructing（2）Concrete foundation base plate, or column foundation cushion cap（3）, no
Construct to the superstructure in shallow foundation hole；The concrete foundation base plate, or column foundation cushion cap（3）Conserved after having poured concrete
Period not form removal, as deep basal pit（1）Stabilising system in side slope, consolidates excavation slope；
B, etc. shallow foundation hole（2）Concrete foundation base plate, or column foundation cushion cap（3）Pour 4 angel's concrete and reach some strength
Afterwards, deep pit excavation（1）, the step absolute altitude of two grades of slopes of deep basal pit is positioned at shallow foundation hole bottom elevation location；
C, deep basal pit（1）Excavate simultaneously, in the shallow foundation hole constructed（2）Concrete foundation base plate, or column foundation cushion cap（3）
It is upper to lay displacement and settlement monitoring point, it is monitored by " the pit retaining monitoring scheme " separately worked out, to control deep pit digging
To the coordinate influence degree in shallow foundation hole in work progress；
After the completion of d, deep basal pit are poured, start construction shallow foundation hole（2）The top of concrete foundation base plate, or column foundation cushion cap
（3）Top, but must first be in shallow foundation hole（2）Concrete foundation base plate, or column foundation cushion cap（3）On remeasure positioning
Coordinate, then the elements of a fix to deep basal pit top concrete structure remeasure unwrapping wire, cheated when with shallow foundation（2）Concrete foundation
Base plate, or column foundation cushion cap（3）Former coordinate when having off normal, when the elements of a fix of deep basal pit top concrete structure are made and
When rectify a deviation and correct.
2. deep inverse formula construction method after underground concrete structure as claimed in claim 1 is first shallow, it is characterised in that the original
The off normal of coordinate includes center, absolute altitude deviation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410628728.9A CN105649086B (en) | 2014-11-11 | 2014-11-11 | Deep inverse formula construction method after a kind of underground concrete structure is first shallow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410628728.9A CN105649086B (en) | 2014-11-11 | 2014-11-11 | Deep inverse formula construction method after a kind of underground concrete structure is first shallow |
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| CN105649086A CN105649086A (en) | 2016-06-08 |
| CN105649086B true CN105649086B (en) | 2017-06-30 |
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| CN201410628728.9A Active CN105649086B (en) | 2014-11-11 | 2014-11-11 | Deep inverse formula construction method after a kind of underground concrete structure is first shallow |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978700A (en) * | 2018-07-19 | 2018-12-11 | 中国十七冶集团有限公司 | The construction technology of the proximate building structure basis of different depth |
| CN109029215A (en) * | 2018-09-17 | 2018-12-18 | 中国五冶集团有限公司 | A kind of mechanism for the measurement of pile foundation hole depth |
| CN112411555A (en) * | 2020-11-16 | 2021-02-26 | 上海宝冶集团有限公司 | Method for synchronous construction of deep foundation pit and edge foundation process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2254417C1 (en) * | 2003-12-15 | 2005-06-20 | Басиев Асхар Николаевич | Method and anchor system for securing pit bordering |
| CN101892668A (en) * | 2010-07-30 | 2010-11-24 | 中铁四局集团第六工程有限公司 | Combined support-excavated geologically solutional deep foundation pit and construction method thereof |
| CN102031781A (en) * | 2009-09-24 | 2011-04-27 | 上海市第一建筑有限公司 | Foundation pit reinforcing technology from shallow position to deep position for group pit construction |
| CN102425171A (en) * | 2011-09-25 | 2012-04-25 | 湖南省勘测设计院 | Forward-backward constructing method for central island of deep and large foundation pit |
| CN203222802U (en) * | 2013-03-29 | 2013-10-02 | 辽宁工程技术大学 | Stepped foundation pit slope supporting structure |
-
2014
- 2014-11-11 CN CN201410628728.9A patent/CN105649086B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2254417C1 (en) * | 2003-12-15 | 2005-06-20 | Басиев Асхар Николаевич | Method and anchor system for securing pit bordering |
| CN102031781A (en) * | 2009-09-24 | 2011-04-27 | 上海市第一建筑有限公司 | Foundation pit reinforcing technology from shallow position to deep position for group pit construction |
| CN101892668A (en) * | 2010-07-30 | 2010-11-24 | 中铁四局集团第六工程有限公司 | Combined support-excavated geologically solutional deep foundation pit and construction method thereof |
| CN102425171A (en) * | 2011-09-25 | 2012-04-25 | 湖南省勘测设计院 | Forward-backward constructing method for central island of deep and large foundation pit |
| CN203222802U (en) * | 2013-03-29 | 2013-10-02 | 辽宁工程技术大学 | Stepped foundation pit slope supporting structure |
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