CN107476287A - A kind of deformed steel for SMW engineering methods and its construction method using the deformed steel - Google Patents
A kind of deformed steel for SMW engineering methods and its construction method using the deformed steel Download PDFInfo
- Publication number
- CN107476287A CN107476287A CN201710659722.1A CN201710659722A CN107476287A CN 107476287 A CN107476287 A CN 107476287A CN 201710659722 A CN201710659722 A CN 201710659722A CN 107476287 A CN107476287 A CN 107476287A
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- Prior art keywords
- deformed steel
- hole
- steel
- extracting
- deformed
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a kind of deformed steel for SMW engineering methods, the cross section of described deformed steel one end is shaped as X fonts, and the X fonts point of intersection of the deformed steel is provided with the through hole for being used for slip casting and extracting the deformed steel；The present invention is also corresponding to disclose a kind of construction method using foregoing deformed steel.Deformed steel of the present invention for SMW engineering methods and its construction method using the deformed steel, are not only easy to extract, are easy to reclaim deformed steel, and can be to extracting deformed steel when pile body on the hole that leaves carry out slip casting backfill, ensure the supporting intensity of structure.
Description
Technical field
The invention belongs to Construction Technique of Underground Works field, and in particular to a kind of deformed steel for SMW engineering methods and its make
With the construction method of the deformed steel.
Background technology
SMW engineering method diaphragm walls, it is Soil Mixing Wall abbreviation, in 1976 in Japan, now accounts for all Japan
50% or so of diaphram wall, now the engineering method widely used in many places such as country in Southeast Asia, the U.S. and France.It is near several
Nian Lai, also promoted rapidly in the place such as the Shanghai in China, Hangzhou and Nanjing, widely paid close attention to and welcome.
SMW engineering methods are to creep into the cutting soil body on the spot using special multi-shaft stirring, while in drill bit end by cement grout
The soil body is injected, after being thoroughly mixed, overlapping lapping construction is taken between each unit in charge of construction, is not tied in soil cement mixture
Again by H profile steel or other section bars insertion mixing pile body before hard, formation has some strength and rigidity, continuous whole, nothing
The diaphram wall body of seam, the wall can be as the earth-retainings and water sealing structure of underground excavation foundation ditch.
Carrying out construction using SMW engineering methods has more advantages：It is substantially noiseless during construction, knot small to surrounding environment influence
Structure intensity is reliable, and every suitable occasion using cement mixing method all can be used, particularly suitable for using clay and Extra-fine sand as
Main broken ground；Dash barrier performance is good, it is not necessary to separately sets dash curtain, can coordinate multiple tracks support applications in deeper base
Hole；This engineering method can replace the diaphram wall gone along with sb. to guard him as underground under certain condition, if can use extracting apparatus and pass through
Certain working measure and the successfully material such as reclaiming type steel are taken, then its construction cost can be significantly less than diaphram wall, more have
Beneficial to popularizing for SMW engineering methods.
But in Practical Project, hole is easily left on stirring pile body using traditional method for pulling out, so as to serious shadow
Supporting intensity is rung, and part shaped steel even is difficult to extract, so as to cause the waste of material.
The content of the invention
In order to solve the above problems, one aspect of the present invention provides a kind of deformed steel for SMW engineering methods, and it is not only easy to pull out
Go out, and slip casting backfill can be carried out to stirring the hole left on pile body during extraction deformed steel.
To achieve the above object, the present invention is achieved by following technical scheme：
A kind of deformed steel for SMW engineering methods, it is characterised in that：The cross section of described deformed steel one end is shaped as X words
Type, the X fonts point of intersection of the deformed steel are provided with the through hole for being used for slip casting and extracting the deformed steel.
Preferably, the internal thread for being used for being connected with extracting apparatus is provided with the through hole.
Preferably, the opposite end of one end with X fonts cross section of the deformed steel is set to be easily inserted soil cement
Taper.
Preferably, one end with X fonts cross section of the deformed steel is provided with two symmetrical arms of stability.
Preferably, the both ends of each arm of stability are respectively provided with a fore shaft for being used to connect the adjacent deformed steel.
Another aspect of the present invention additionally provides a kind of construction method using foregoing deformed steel, can not only be effectively to different
Shaped steel is reclaimed, and the hole that can be left to stirring pile body during extraction deformed steel carries out slip casting backfill, ensures the branch of structure
Protect intensity, it is characterised in that comprise the following steps：
S1, construct cement mixing method；
S2, deformed steel is protected and lubricated, use plug seal through hole；
Before S3, cement mixing method hardening, the deformed steel made of step S2 had into X fonts cross sections
The cement mixing method is inserted in the opposite end of one end, connects the adjacent deformed steel；
S4, prepare extracting apparatus, Grouting Pipe, after civil engineering, pull out the plug and by the extracting apparatus with
The through hole anchoring, then by the Grouting Pipe successively through the extracting apparatus, the through hole until being inserted into the abnormal shape
The bottom of steel；
S5, the deformed steel extracted by the extracting apparatus, then using the Grouting Pipe to extracting the deformed steel
The hole slip casting that the cement mixing method is formed afterwards；
S6, the deformed steel are completed after extracting, and are separated the deformed steel and the extracting apparatus and are reclaimed.
Preferably, in step s 2, the method for protection is to wrap up the deformed steel, the method for lubrication using insulation foam
To smear vaseline on the deformed steel.
Preferably, in step s 5, the deformed steel is carried out by the extracting apparatus using jack or crane
Extract.
Preferably, in step s 6, the standard for extracting completion pulls away the ororrhea of ground and slip casting for the deformed steel
Go out ground.
Preferably, the extracting apparatus includes being provided with externally threaded steel pipe and the fixture for clamping the steel pipe；Institute
The internal thread that external screw thread is stated with the through hole is engaged.
Relative to prior art, the present invention has following advantageous effects：
(1) a kind of deformed steel for SMW engineering methods provided by the invention, the cross section of its one end are shaped as X fonts, X
The point of intersection of font is provided with the through hole for being used for slip casting and extracting deformed steel, utilizes the through hole so that extracting apparatus can block abnormal shape
Steel, be advantageous to the recovery of deformed steel；Hole can be left in building enclosure by being additionally, since when extracting deformed steel, pass through the through hole
Slip casting backfill can be carried out to hole, the supporting intensity of structure has been effectively ensured.
(2) it is complete in civil engineering for a kind of construction method of deformed steel using for SMW engineering methods provided by the invention
Bi Hou, the plug being located in through hole is extracted, then the through hole on extracting apparatus and deformed steel can be anchored to extract deformed steel,
Based on this, extracting apparatus can be effectively connected with deformed steel, be advantageous to reclaim deformed steel and reused；Grouting Pipe is led to
Cross extracting apparatus and through hole is inserted into the bottom of deformed steel, to enter to stirring the hole formed on pile body after extraction deformed steel
Row slip casting, backfill, the influence to caused by the supporting intensity of building enclosure after deformed steel is extracted is advantageously reduced, so as to ensure to go along with sb. to guard him
Structure can provide enough supportings.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is deformed steel schematic top plan view of the present invention；
Fig. 2 is deformed steel schematic elevation view of the present invention；
Fig. 3 is deformed steel operating diagram of the present invention.
In figure：1- deformed steels；11- through holes；The 12- arms of stability；13- fore shafts；2- extracting apparatus；21- steel pipes；22- fixtures；3-
Grouting Pipe；4- jack.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in FIG. 1 to 3, the invention provides a kind of deformed steel for SMW engineering methods, the one end of deformed steel 1 it is transversal
Face is shaped as X fonts, and the X fonts point of intersection of deformed steel 1 is provided with the through hole 11 for being used for slip casting and extracting deformed steel 1.
Using the deformed steel 1 of this structure, the through hole 11 is utilized so that extracting apparatus 2 can block deformed steel 1, be advantageous to
Deformed steel 1 is reclaimed；Simultaneously as hole can be left in building enclosure when extracting deformed steel 1, pass through deformed steel 1
Through hole 11 can carry out slip casting backfill to the hole, and the supporting intensity of structure has been effectively ensured.
The internal thread for being used for being connected with extracting apparatus 2 is provided with as a kind of embodiment, in through hole 11.It is provided with through hole 11
Internal thread so that extracting apparatus 2 can be connected by internal thread with through hole 11, and in work progress, operating personnel is filled using extraction
Put 2 to be connected with through hole 11, reusing jack 4 or other equipment just easily can be extracted deformed steel 1.
The opposite end of one end with X fonts cross section of deformed steel 1 is set to be easily inserted the taper of soil cement so that different
Shaped steel 1 can effectively reduce side skin friction when inserting in soil cement, be advantageous to improve the insertion efficiency of deformed steel 1；And
And the opposite end of one end with X fonts cross section of deformed steel 1 is set to taper (as insertion end), is also beneficial to inserting
When control deformed steel 1 perpendicularity, good construction effect can be obtained.
In the above-described embodiments, as shown in Fig. 2 the taper is reverse pyramid, based on this, it is not necessary to increase extra
Structure, the opposite end of one end with X fonts cross section of deformed steel 1 need to only be cut, just can form reverse pyramid
Taper；As insertion end, efficiently deformed steel 1 can be inserted in soil cement using in the end of the deformed steel 1 of reverse pyramid,
It is also beneficial to control the perpendicularity of deformed steel 1 when inserting soil cement, ensures that the supporting construction to be formed can possess higher supporting
Intensity.
In the above-described embodiments, as shown in figure 1, one end with X fonts cross section of deformed steel 1 is symmetrical provided with two
The arm of stability 12, wherein, the arm of stability 12 is made of I-steel.Deformed steel 1 is when inserting or pull out soil cement, it will usually by
The active force of soil cement, and the structure of the arm of stability 12 is used, the shape and structure remained stable of deformed steel 1 can be caused, avoided
Deformed steel 1 deforms, and the supporting intensity for the supporting construction to be formed is effectively ensured, and is also beneficial to recovery to deformed steel 1 and again
It is multiple to utilize.
Wherein, the both ends of each arm of stability 12 are respectively provided with a fore shaft 13 for being used to connect adjacent deformed steel.Pass through fore shaft
13 enable adjacent two deformed steel 1 in insertion soil cement to be connected, and in actual use, multiple deformed steels 1 are connected
After being connected into entirety, the supporting intensity of total can be effectively improved, substantially increases the service efficiency of supporting construction so that should
Supporting construction can provide larger supporting intensity with less volume.
It is corresponding, the invention also discloses a kind of construction method of the deformed steel using described in above-described embodiment, such as Fig. 3 institutes
Show, comprise the following steps：
S1, construct cement mixing method；
S2, deformed steel 1 is protected and lubricated, use plug seal through hole 11；
Wherein, protection is carried out to deformed steel 1 to be advantageous to that deformed steel 1 is reclaimed and reused；Deformed steel 1 is carried out
Lubrication causes deformed steel 1 to be easier into and out soil cement；Using plug seal through hole 11, can prevent into and out
When, soil cement blocks through hole 11, makes Grouting Pipe 3 cannot pass through through hole 11, causes that slip casting operation can not be completed.
Because insulation foam and vaseline all have price low, the advantages that facilitating is purchased, is adapted in civil engineering project big
Scale uses, and therefore, in step s 2, the method for protection is specially using insulation foam parcel deformed steel 1, the method tool of lubrication
Body is to smear vaseline on deformed steel 1.
Before S3, cement mixing method hardening, by one end with X fonts cross section of deformed steel 1 made of step S2
Cement mixing method is inserted in opposite end, connects adjacent deformed steel 1；
Multiple adjacent deformed steels 1 are connected integral, the supporting intensity of whole supporting construction can be effectively improved, be advantageous to
Improve the service efficiency of supporting construction so that supporting construction can provide larger supporting intensity with less volume.
S4, prepare extracting apparatus 2, Grouting Pipe 3, after civil engineering, pull out plug and by extracting apparatus 2 and through hole 11
Anchoring, then by the priority of Grouting Pipe 3 through the bottom of extracting apparatus 2, through hole 11 up to being inserted into deformed steel 1；
Wherein, extracting apparatus 2 includes being provided with externally threaded steel pipe 21 and the fixture 22 for clamping steel pipe 21, external screw thread and
The internal thread of through hole 11 is engaged.In actual use, plug is pulled out first so that through hole 11 exposes, then by outside steel pipe 21
The screw-internal thread fit of screw thread and through hole 11 screws, and is easy to Grouting Pipe 3 to be inserted into deformed steel 1 by the hollow space among steel pipe 21
Bottom.
S5, by extracting apparatus 2 extract deformed steel 1, then using Grouting Pipe 3 to extract deformed steel 1 after Soil-cement
The hole that stake is formed carries out slip casting；
After steel pipe 21 is screwed with through hole 11 by screw thread, steel pipe 21 is clamped using fixture 22, in step s 5, is specifically
Deformed steel 1 is extracted by fixture 22 and steel pipe 21 using jack 4 or crane.During deformed steel 1 is extracted, meeting exists
Hole is formed in soil cement, the Grouting Pipe 3 positioned at the bottom of deformed steel 1 just carries out slip casting to the hole newly formed, so as to drop significantly
The low influence for extracting deformed steel 1 to the intensity of supporting construction.
S6, after deformed steel 1 is completed to pull out, separate deformed steel 1 and extracting apparatus 2 and reclaimed.
Wherein, in step s 6, when being extracted to deformed steel 1, when deformed steel 1 is pulled away into ground and the note of Grouting Pipe 3
After the slurries of slurry overflow ground, the extraction of deformed steel 1 is completed.
Separation deformed steel 1 and extracting apparatus 2 and the specific method that is reclaimed is：First take out Grouting Pipe 3, by fixture 22 with
Steel pipe 21 is separated, then steel pipe 21 is screwed out from through hole 11, the insulation foam outside deformed steel 1 is removed, to deformed steel
1st, steel pipe 21 and fixture 22 are cleaned and preserved, and treat that next time is used again using SMW engineering methods.
It is last it should be noted that：A kind of deformed steel and its construction method for SMW engineering methods of the present invention it is other
Structure will not be repeated here referring to prior art.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, therefore
Every any modification that without departing from technical solution of the present invention content, the technical spirit according to the present invention is made to above example,
Equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (10)
- A kind of 1. deformed steel for SMW engineering methods, it is characterised in that：The cross section of described deformed steel one end is shaped as X fonts, The X fonts point of intersection of the deformed steel is provided with the through hole for being used for slip casting and extracting the deformed steel.
- A kind of 2. deformed steel for SMW engineering methods according to claim 1, it is characterised in that：It is provided with and is used in the through hole The internal thread being connected with extracting apparatus.
- A kind of 3. deformed steel for SMW engineering methods according to claim 1, it is characterised in that：The deformed steel has X words The opposite end of one end of type cross section is set to be easily inserted the taper of soil cement.
- A kind of 4. deformed steel for SMW engineering methods according to claim 1, it is characterised in that：The deformed steel has X words One end of type cross section is provided with two symmetrical arms of stability.
- A kind of 5. deformed steel for SMW engineering methods according to claim 4, it is characterised in that：The two of each arm of stability End is respectively provided with a fore shaft for being used to connect the adjacent deformed steel.
- A kind of 6. construction method of deformed steel using as described in claim 1-5 any one, it is characterised in that including with Lower step：S1, construct cement mixing method；S2, deformed steel is protected and lubricated, use plug seal through hole；Before S3, cement mixing method hardening, by one end with X fonts cross section of the deformed steel made of step S2 Opposite end insert the cement mixing method, connect the adjacent deformed steel；S4, prepare extracting apparatus, Grouting Pipe, after civil engineering, pull out the plug and by the extracting apparatus with it is described Through hole anchors, then by the Grouting Pipe successively through the extracting apparatus, the through hole until being inserted into the deformed steel Bottom；S5, the deformed steel extracted by the extracting apparatus, then using the Grouting Pipe to extracting institute after the deformed steel State the hole slip casting that cement mixing method is formed；S6, the deformed steel are completed after extracting, and are separated the deformed steel and the extracting apparatus and are reclaimed.
- 7. construction method according to claim 6, it is characterised in that：In step s 2, the method for protection is using isolation Foam wraps up the deformed steel, and the method for lubrication is to smear vaseline on the deformed steel.
- 8. construction method according to claim 6, it is characterised in that：In step s 5, passed through using jack or crane The extracting apparatus is extracted to the deformed steel.
- 9. construction method according to claim 6, it is characterised in that：In step s 6, the standard for extracting completion is described Deformed steel pulls away ground and the slurries of slip casting overflow ground.
- 10. construction method according to claim 6, it is characterised in that：The extracting apparatus includes being provided with externally threaded steel Pipe and the fixture for clamping the steel pipe；The external screw thread is engaged with the internal thread of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659722.1A CN107476287B (en) | 2017-08-04 | 2017-08-04 | Deformed steel for SMW construction method and construction method using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659722.1A CN107476287B (en) | 2017-08-04 | 2017-08-04 | Deformed steel for SMW construction method and construction method using same |
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| Publication Number | Publication Date |
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| CN107476287A true CN107476287A (en) | 2017-12-15 |
| CN107476287B CN107476287B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710659722.1A Active CN107476287B (en) | 2017-08-04 | 2017-08-04 | Deformed steel for SMW construction method and construction method using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301404A (en) * | 2018-01-18 | 2018-07-20 | 中国冶集团有限公司 | SMW engineering method pile-type steel is pulled out and high-pressure slip-casting method for synchronously constructing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003313862A (en) * | 2002-04-24 | 2003-11-06 | Takenaka Komuten Co Ltd | Method for installing cast-in-place steel base column and steel column |
| CN103790160A (en) * | 2014-01-17 | 2014-05-14 | 上海中锦建设集团股份有限公司 | Method for pulling out structural steel and conducting grouting through SMW construction method |
| CN106088102A (en) * | 2016-06-22 | 2016-11-09 | 南京工业大学 | Lattice type combined steel sheet pile cement soil composite pile and construction method thereof |
| JP6127760B2 (en) * | 2013-06-17 | 2017-05-17 | ジャパンパイル株式会社 | Construction method of construction pillar |
| CN207003423U (en) * | 2017-08-04 | 2018-02-13 | 广州市建筑科学研究院新技术开发中心有限公司 | A kind of deformed steel for SMW engineering methods |
-
2017
- 2017-08-04 CN CN201710659722.1A patent/CN107476287B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003313862A (en) * | 2002-04-24 | 2003-11-06 | Takenaka Komuten Co Ltd | Method for installing cast-in-place steel base column and steel column |
| JP6127760B2 (en) * | 2013-06-17 | 2017-05-17 | ジャパンパイル株式会社 | Construction method of construction pillar |
| CN103790160A (en) * | 2014-01-17 | 2014-05-14 | 上海中锦建设集团股份有限公司 | Method for pulling out structural steel and conducting grouting through SMW construction method |
| CN106088102A (en) * | 2016-06-22 | 2016-11-09 | 南京工业大学 | Lattice type combined steel sheet pile cement soil composite pile and construction method thereof |
| CN207003423U (en) * | 2017-08-04 | 2018-02-13 | 广州市建筑科学研究院新技术开发中心有限公司 | A kind of deformed steel for SMW engineering methods |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301404A (en) * | 2018-01-18 | 2018-07-20 | 中国冶集团有限公司 | SMW engineering method pile-type steel is pulled out and high-pressure slip-casting method for synchronously constructing |
| CN108301404B (en) * | 2018-01-18 | 2019-12-10 | 中国一冶集团有限公司 | Synchronous construction method for removing pile section steel and high-pressure grouting in SMW (soil mixing wall) method |
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| CN107476287B (en) | 2023-06-02 |
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