CN101544023B - Preparation method for preformed hole split pouring fender pile - Google Patents
Preparation method for preformed hole split pouring fender pile Download PDFInfo
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- CN101544023B CN101544023B CN 200910081892 CN200910081892A CN101544023B CN 101544023 B CN101544023 B CN 101544023B CN 200910081892 CN200910081892 CN 200910081892 CN 200910081892 A CN200910081892 A CN 200910081892A CN 101544023 B CN101544023 B CN 101544023B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 239000004568 cement Substances 0.000 claims description 22
- 238000005267 amalgamation Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 16
- 239000003995 emulsifying agent Substances 0.000 claims description 15
- 239000000314 lubricant Substances 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 15
- 239000004574 high-performance concrete Substances 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 210000000481 breast Anatomy 0.000 claims description 10
- 239000011150 reinforced concrete Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 238000007569 slipcasting Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229920000136 polysorbate Polymers 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 230000010412 perfusion Effects 0.000 claims description 5
- 235000010413 sodium alginate Nutrition 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 230000032798 delamination Effects 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
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- 238000003672 processing method Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 3
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Abstract
The invention provides a preformed hole split pouring fender pile, belongs to the field of building, in particular relate to a fender pile capable of barricading earth and water and applied to deep foundation pit engineering, and discloses a preparation method for the preformed hole split pouring fender pile. The cross section mode of the fender file is a square of which two semi-circles of opposite lateral surfaces are cut off. The fender pile is a preformed pile, has better compactness, permeability resistance, side pressure resistance and shearing resistance capacity, and does not need maintenance. The fender pile has simple construction, saves time and labor, and has short construction period and water retaining function; and the construction is completed by only driving a row of piles.
Description
Technical field
Preformed hole amalgamation pouring fender pile of the present invention, especially a kind of preparation method of preformed hole amalgamation pouring fender pile belongs to building field.
Background technology
Along with the development of City Underground Transportation and high-rise, deep-foundation pit engineering construction increases gradually, meets with various disease accidents unavoidably in construction, as foundation pit enclosure structure leak, founding etc.Progressive very fast on worker's method of building enclosure engineering in recent years, and on the improvement stratum, implement on worker's method of hydrophobic, sealing not surprising, some worker's method since service condition be difficult to grasp, very risky, careless slightlyly just can breed disaster.Traditional deep layer foundation ditch is handled and used a lot of years in engineering, along with using more and more widely, has many shortcomings to come out.Long construction period, impervious bad, maintenance trouble etc., and construction costs is higher.To different stratum, general foundation pit enclosure structure mainly contains [school moon coin, the research of SWM fender post and application, Geotechnical Engineering technology such as diaphram wall, artificial digging pile, cast-in-situ bored pile, the stake of SMW worker's method, deep layer stirring concrete earth enclosure wall and steel sheet pile, 2003,2].
Diaphram wall, this structure are suitable for full water soft stratum, as full water sand bed, saturated soft mud etc.Diaphram wall can intercept underground water effectively in this type of soil layer, but its cost is very high, is applicable to municipal key project, and is not suitable for general engineerings such as skyscraper.Artificial digging pile and cast-in-situ bored pile all are to adopt the campshed piling wall to keep off soil and waterproof, realize going along with sb. to guard him of foundation ditch, it is not suitable for the deep layer base pit engineering, the quality control instability, and soil erosion is easily caused in the slit between stake, particularly in high water level bury matter area, need to take suitable working measure solving the dash problem according to engineering specifications, and between stake and the stake mainly by stake apical cap beam with enclose purlin and be linked to be integral body, thereby relative globality is relatively poor, though can fix inter-pile soil by slip casting, but the construction relative complex [Zhao Shouzhi, the slip casting preliminary treatment is sent out to solve between the fender post stake and is stablized, the geotechnique basis, 2007,6].The stake of SMW worker's method is the stiffness material that inserts H shaped steel or other kind in cement mixing method, comes the bending resistance of refinforced cement soil mixing pile, shear resistance.Though this kind method is faster than construction of diaphragm wall speed, take up an area of and lack, the relative fender post of its construction costs is higher, and steel using amount is big, and construction is complicated.Deep layer stirring concrete earth enclosure wall does not have in the general hole and supports, and is convenient to mechanization and cuts the earth fast, dual-use function with retaining soil, sealing, but its displacement is relatively large, will note preventing to influence surrounding environment especially when foundation ditch length is big, and when cement-soil stirring pile construction.Steel sheet pile is a kind of underground exterior-protected structure stake of using always, though the bearing capacity height, the stake footpath is less, is not suitable for dark basic unit engineering, and its construction costs height, and quantities is big, and keeping off native load performance and sealing effect does not have fender post good.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of preformed hole amalgamation pouring fender pile, the fender post for preparing is a prefabricated pile, and its density, impermeability, lateral pressure resistant power and shear resistance are all better, need not maintenance.
Preformed hole amalgamation pouring fender pile of the present invention, wherein, described fender post sectional form is that the square of two semicircles removed in the opposite flank;
Above-mentioned fender post is a hollow pile, and its processing method is:
A, preparation reinforcement cage skeleton;
B, preparation high performance concrete and the mould that is complementary, and on mould, be coated with the isolation lubricant;
C, be installed in steel reinforcement cage on the mould and tighten drawing device;
D, with in the high performance concrete that the prepares feeding punching block, by the anti-bending strength of product reinforcing bar is carried out pre-stretch-draw, reach locking behind the required value, anchoring;
E, put into and carry out centrifugal on the centrifuge and pour out surplus slurry;
The demoulding after f, the steam curing;
G, finished product are stacked by the hardening of cement requirement, and carry out natural curing or water curing by the hardening of cement requirement.
Above-mentioned fender post is a solid pile, and its processing method is:
A, preparation reinforcement cage skeleton;
B, preparation high performance concrete and the mould that is ready to be complementary are coated with the isolation lubricant on mould;
C, be installed in steel reinforcement cage on the mould and tighten drawing device;
D, reinforcing bar is carried out pre-stretch-draw, reach locking after the requirement, anchoring by the anti-bending strength of product; For the not stretch-draw that does not have the prestressing force requirement;
E, with in the high performance concrete that the prepares feeding punching block, start vibrations equipment simultaneously, vibrate, closely knit;
The demoulding after f, the steam curing;
G, finished product are stacked by the hardening of cement requirement, and carry out natural curing or water curing by the hardening of cement requirement.
The implementation method of the single step technology among the above-mentioned hollow pile and the preparation method of solid pile and parameter thereof all are mature technologies of the prior art, and various technology are all carried out according to the building standard of country and got final product.The concrete standard of using is: GB50007-2002, GB/T 20344-2004, GB 50202-2002, GB/T50344-2004, GB 13474-1999, GB/T 554-2008.
Above-mentioned isolation lubricant dry weight component is by weight: 10 parts of sodium alginates, 3 parts of emulsifying agent Tween (emulsifier tween), 3 parts of emulsifying agent Spam (emolsifier span), 5 parts in graphite, 80 parts of inserts talcum powder add 5～6 times of mixing and stirring of water by weight; Wherein, described emulsifying agent Tween (emulsifier tween) and emulsifying agent Spam (emolsifier span) belong to the D-sorbite fatty acid ester, the source is directly directly to purchase from each domestic big producer, commercial grade can reach requirement of the present invention, and other components in the above-mentioned isolation lubricant all come from commercial the purchase and obtain.
The coating thickness of isolating lubricant should be basic demand can cover the surface fully, and the thickness of coating is no more than 1 centimetre, and preferred thickness is 0.2-0.5 centimetre.
Above-mentioned steam curing is carried out as follows: the fender post after the cast leaves standstill 2-4 hour (preferred 3 hours), programming rate be 10～30 ℃/h (preferred 20 ℃/h), constant temperature phase temperature range is 55～80 ℃ (preferred 65 ℃), constant temperature time 8～12 hours (preferred 10 hours), cooling rate be 10～30 ℃/h (preferred 20 ℃/h).
The inventor has obtained isolating the optimum composition and the proportioning ratio of lubricant through long-term experiment, makes product of the present invention be very easy to the demoulding in preparation, and effect is very good.Another one inventive point of the present invention is exactly steam-cured mode, and the inventor has passed through experiment repeatedly, obtains result of the present invention, can increase the intensity of product of the present invention.By experimental production construction note and statistics analysis, need only constantly delivering vapor in steam-cured canopy, keep temperature of shed between 55～80 ℃, concrete intensity can increase rapidly, can to reach more than 90% (be that the C40 concrete reaches about 36MPa to intensity behind the 24h, satisfy the stretch-draw requirement), effect is very obvious.
Can use construction method of installation conventional in this area, preferably carry out installation in the following manner:
Amalgamation sealing steel pipe is squeezed into method: two are stitched together, middle two semicircles are combined into cylindrical hole, insert the steel pipe of hollow sealing in the hole, with two squeeze into together and go along with sb. to guard him workshop section, simultaneously also squeeze into the steel pipe of hollow sealing respectively, steel pipe is pulled out from cylindrical hole after requiring the degree of depth when squeezing in the semicircle vacancy in two outsides;
The amalgamation breast boards is squeezed into method: two are stitched together, and middle two semicircles are combined into cylinder, and the bottom is established breast boards and two and squeezed into together and go along with sb. to guard him workshop section in the hole, also establishes the semicircle breast boards respectively in the semicircle vacancy in two outsides simultaneously, squeezes into stake;
The available hammering method of stake, vibratory drilling method, plunging and the water jetting pile sinking squeezing into or imbed, after stake quantity reaches design load, perfusion chance water is hard cementing material in the cylindrical hole that two centres are vacated, and comprising: cement, cement waterglass, modified water glass, chemical pulp, cementing material; Grouting mode comprises delamination pour slurry, grouting with small pipe, the slip casting of TSS pipe, curtain-grouting, high-pressure slip-casting.
Above-mentioned fender post is a plain concrete pile.
Above-mentioned fender post is reinforced concrete pile and the described opposite flank unreinforced that removes semicircle.
Above-mentioned fender post is that reinforced concrete pile and the described opposite flank arrangement of reinforcement that removes semicircle are less.Fender post can use steel reinforced concrete or plain concrete, and arrangement of reinforcement zone main when using steel reinforced concrete is at two straight flanges, and two have the limit of semicircle to lack arrangement of reinforcement or unreinforceds.
Particularly the present invention has following advantage:
1, fender post of the present invention is a prefabricated pile, and its density, impermeability, lateral pressure resistant power and shear resistance are all better, need not maintenance;
2, the present invention constructs simply, and is time saving and energy saving as long as squeeze into a campshed, short construction period, and dash is made good use of;
3, uniform specification of the present invention, convenient transportation, haul distance is long, and noiselessness is pollution-free, and the construction organization facility.
Description of drawings
Fig. 1 is the schematic cross-section of plain concrete solid pile of the present invention;
Fig. 2 is the schematic cross-section of two amalgamations of plain concrete solid pile of the present invention;
Fig. 3 inserts the schematic cross-section of steel pipe for two amalgamations of plain concrete solid pile of the present invention;
Fig. 4; Schematic cross-section for reinforced concrete hollow stake of the present invention;
Fig. 5 is the schematic cross-section of two amalgamations of reinforced concrete hollow stake of the present invention;
Fig. 6 is two amalgamations of reinforced concrete hollow stake of the present invention, and the schematic cross-section that the water-soluble pad of underlay and both sides are pasted solubility and the semicylinder of certain rigidity is arranged is inserted in the amalgamation hole;
Fig. 7 is the schematic perspective view of plain concrete solid pile of the present invention;
Fig. 8 is the schematic perspective view of reinforced concrete hollow stake of the present invention.
The specific embodiment
Following examples only are used for illustrating how characteristic feature of an invention and further explanation implement the present invention, are not used for limiting protection scope of the present invention.
Preformed hole amalgamation pouring fender pile is as Fig. 1～shown in Figure 3.
Above-mentioned fender post is a solid pile, and its processing method is:
A, preparation reinforcement cage skeleton;
B, preparation high performance concrete and the mould that is ready to be complementary are coated with the isolation lubricant on mould;
C, be installed in steel reinforcement cage on the mould and tighten drawing device;
D, reinforcing bar is carried out pre-stretch-draw, reach locking after the requirement, anchoring by the anti-bending strength of product; For the not stretch-draw that does not have the prestressing force requirement;
E, with in the high performance concrete that the prepares feeding punching block, start vibrations equipment simultaneously, vibrate, closely knit;
The demoulding after f, the steam curing;
G, finished product are stacked by the hardening of cement requirement, and carry out natural curing or water curing by the hardening of cement requirement.
Above-mentioned isolation lubricant dry weight component is by weight: sodium alginate 10, and emulsifying agent Tween3, emulsifying agent Spam3,5 parts in graphite, inserts talcum powder 80 adds 6 times of mixing and stirring of water by weight;
Above-mentioned steam curing is carried out as follows: the fender post after the cast left standstill 3 hours, and programming rate is 10 ℃/h, and constant temperature phase temperature is 55 ℃, constant temperature time 8 hours, and cooling rate is 10 ℃/h.
Sectional form is that the square of two semicircles 1 removed in the opposite flank and it carries out installation in the following manner:
Two are stitched together, as shown in Figure 5.Middle two semicircles are combined into cylindrical hole 2.Insert the steel pipe 21 of hollow sealing and two as shown in Figure 5 in the hole and squeeze into together and go along with sb. to guard him workshop section, also squeeze into the steel pipe 21 of hollow sealing respectively in the semicircle vacancy in two outsides simultaneously, steel pipe 21 is pulled out from cylindrical hole 2 after requiring the degree of depth when squeezing into;
Sunk by hammer is used in the stake of squeezing into, and after stake quantity reached design load, perfusion chance water was hard cementing material in the cylindrical hole 2 that two centres are vacated: cement; Grouting mode uses high-pressure slip-casting.
Preformed hole amalgamation pouring fender pile is as Fig. 4～shown in Figure 6.
Above-mentioned fender post is a hollow pile, and its processing method is:
A, preparation reinforcement cage skeleton;
B, preparation high performance concrete and the mould that is complementary, and on mould, be coated with the isolation lubricant;
C, be installed in steel reinforcement cage on the mould and tighten drawing device;
D, with in the high performance concrete that the prepares feeding punching block, by the anti-bending strength of product reinforcing bar is carried out pre-stretch-draw, reach locking behind the required value, anchoring;
E, put into and carry out centrifugal on the centrifuge and pour out surplus slurry;
The demoulding after f, the steam curing;
G, finished product are stacked by the hardening of cement requirement, and carry out natural curing or water curing by the hardening of cement requirement.
Above-mentioned isolation lubricant dry weight component is by weight: sodium alginate 10, and emulsifying agent Tween3, emulsifying agent Spam3,5 parts in graphite, inserts talcum powder 80 adds 5 times of mixing and stirring of water by weight;
Above-mentioned steam curing is carried out as follows: the fender post after the cast left standstill 4 hours, and programming rate is 30 ℃/h, and constant temperature phase temperature is 80 ℃, constant temperature time 12 hours, and cooling rate is 30 ℃/h.
Sectional form is that the square of two semicircles 1 removed in the opposite flank and it carries out installation in the following manner:
Two are stitched together, as shown in Figure 4.Middle two semicircles are combined into cylindrical hole 2.The bottom is established breast boards 22 and two and is squeezed into together and go along with sb. to guard him workshop section in the hole as shown in Figure 5, also establishes semicircle breast boards 23 respectively in the semicircle vacancy in two outsides simultaneously;
Sunk by hammer is used in the stake of squeezing into, and after stake quantity reached design load, perfusion chance water was hard cementing material in the cylindrical hole 2 that two centres are vacated: modified water glass; Grouting mode uses the slip casting of TTS pipe.
Embodiment 3
Preformed hole amalgamation pouring fender pile, as shown in Figure 7.
Above-mentioned fender post is a solid pile, and its processing method is:
A, preparation high performance concrete and the mould that is complementary, and on mould, be coated with the isolation lubricant;
B, with in the high performance concrete that the prepares feeding punching block;
C, put into and carry out centrifugal on the centrifuge and pour out surplus slurry;
The demoulding after d, the steam curing;
E, finished product are stacked by the hardening of cement requirement, and carry out natural curing or water curing by the hardening of cement requirement.
Above-mentioned isolation lubricant dry weight component is by weight: sodium alginate 10, and emulsifying agent Tween3, emulsifying agent Spam3,5 parts in graphite, inserts talcum powder 80 adds 5 times of mixing and stirring of water by weight;
Above-mentioned steam curing is carried out as follows: the fender post after the cast left standstill 2 hours, and programming rate is 20 ℃/h, and constant temperature phase temperature range is 65 ℃, constant temperature time 10 hours, and cooling rate is 20 ℃/h.
Sectional form is that the square of two semicircles 1 removed in the opposite flank and it carries out installation in the following manner:
Two are stitched together, as shown in Figure 4.Middle two semicircles are combined into cylindrical hole 2.The bottom is established breast boards 22 and two and is squeezed into together and go along with sb. to guard him workshop section in the hole as shown in Figure 5, also establishes semicircle breast boards 23 respectively in the semicircle vacancy in two outsides simultaneously;
Sunk by hammer is used in the stake of squeezing into, and after stake quantity reached design load, perfusion chance water was hard cementing material in the cylindrical hole 2 that two centres are vacated: cement waterglass; Grouting mode uses grout curtain.
Claims (3)
1. the preparation method of a preformed hole amalgamation pouring fender pile, it is characterized in that: described fender post sectional form is that the square of two semicircles removed in the opposite flank, and it is prepared in the following manner:
For hollow pile, its preparation method is:
A, preparation reinforcement cage skeleton;
B, preparation high performance concrete and the mould that is complementary, and on mould, be coated with the isolation lubricant;
C, be installed in steel reinforcement cage on the mould and tighten drawing device;
D, with in the high performance concrete that the prepares feeding mould, by the anti-bending strength of product reinforcing bar is carried out pre-stretch-draw, reach locking behind the required value, anchoring;
E, put into and carry out centrifugal on the centrifuge and pour out surplus slurry;
The demoulding after f, the steam curing;
G, finished product are stacked by the hardening of cement requirement, and carry out natural curing or water curing by the hardening of cement requirement;
For solid pile, its preparation method is:
A, preparation reinforcement cage skeleton;
B, preparation high performance concrete and the mould that is ready to be complementary are coated with the isolation lubricant on mould;
C, be installed in steel reinforcement cage on the mould and tighten drawing device;
D, reinforcing bar is carried out pre-stretch-draw, reach locking after the requirement, anchoring by the anti-bending strength of product; For the not stretch-draw that does not have the prestressing force requirement;
E, with in the high performance concrete that the prepares feeding mould, start vibrations equipment simultaneously, vibrate, closely knit;
The demoulding after f, the steam curing;
G, finished product are stacked by the hardening of cement requirement, and carry out natural curing or water curing by the hardening of cement requirement;
Described isolation lubricant dry weight component is by weight: 10 parts of sodium alginates, 3 parts of emulsifying agent Tween (emulsifier tween), 3 parts of emulsifying agent Spam (emolsifier span), 5 parts in graphite, 80 parts of inserts talcum powder add 5～6 times of mixing and stirring of water by weight;
Described steam curing is carried out as follows: the fender post after the cast left standstill 2-4 hour, and programming rate is 10～30 ℃/h, and constant temperature phase temperature range is 55～80 ℃, constant temperature time 8～12 hours, and cooling rate is 10～30 ℃/h.
2. the construction method of the fender post that the preparation method of preformed hole amalgamation pouring fender pile according to claim 1 makes is characterized in that: the construction method of described fender post comprises:
1) amalgamation sealing steel pipe is squeezed into method: two are stitched together, middle two semicircles are combined into cylindrical hole, insert the steel pipe of hollow sealing in the hole, with two squeeze into together and go along with sb. to guard him workshop section, simultaneously also squeeze into the steel pipe of hollow sealing respectively, steel pipe is pulled out from cylindrical hole after requiring the degree of depth when squeezing in the semicircle vacancy in two outsides;
2) the amalgamation breast boards is squeezed into method: two are stitched together, and middle two semicircles are combined into cylinder, and the bottom is established breast boards and two and squeezed into together and go along with sb. to guard him workshop section in the hole, also establishes the semicircle breast boards respectively in the semicircle vacancy in two outsides simultaneously, squeezes into stake;
3) the available hammering method of stake, vibratory drilling method, plunging and the water jetting pile sinking squeezing into or imbed, after stake quantity reached design load, perfusion chance water was hard cementing material in the cylindrical hole that two centres are vacated, and comprising: cement, cement waterglass, modified water glass; Grouting mode comprises delamination pour slurry, grouting with small pipe, the slip casting of TSS pipe, curtain-grouting, high-pressure slip-casting.
3. the preparation method of preformed hole amalgamation pouring fender pile according to claim 1 is characterized in that: described fender post is reinforced concrete pile and the described opposite flank unreinforced that removes semicircle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910081892 CN101544023B (en) | 2009-04-15 | 2009-04-15 | Preparation method for preformed hole split pouring fender pile |
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| CN 200910081892 CN101544023B (en) | 2009-04-15 | 2009-04-15 | Preparation method for preformed hole split pouring fender pile |
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| CN101544023B true CN101544023B (en) | 2011-08-03 |
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|---|---|---|---|---|
| EP0562238A1 (en) * | 1992-03-24 | 1993-09-29 | Kabushiki Kaisha ASK Kenkyusho | Underground water cutoff wall and method of constructing the same |
| CN2260103Y (en) * | 1996-08-05 | 1997-08-20 | 郭同元 | Pile |
| JP2002266344A (en) * | 2001-03-08 | 2002-09-18 | Sumitomo Metal Ind Ltd | Cutoff member and cutoff method using the same |
| CN2709522Y (en) * | 2004-06-11 | 2005-07-13 | 岳毅 | Hydraulic spile pile device of water-resisting, concrete placing and seam sealing |
| CN201137158Y (en) * | 2007-12-25 | 2008-10-22 | 杭州南方土木工程咨询有限公司 | Rotatable dual spindle drilling occluded side force-resistant guard post wall |
-
2009
- 2009-04-15 CN CN 200910081892 patent/CN101544023B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0562238A1 (en) * | 1992-03-24 | 1993-09-29 | Kabushiki Kaisha ASK Kenkyusho | Underground water cutoff wall and method of constructing the same |
| CN2260103Y (en) * | 1996-08-05 | 1997-08-20 | 郭同元 | Pile |
| JP2002266344A (en) * | 2001-03-08 | 2002-09-18 | Sumitomo Metal Ind Ltd | Cutoff member and cutoff method using the same |
| CN2709522Y (en) * | 2004-06-11 | 2005-07-13 | 岳毅 | Hydraulic spile pile device of water-resisting, concrete placing and seam sealing |
| CN201137158Y (en) * | 2007-12-25 | 2008-10-22 | 杭州南方土木工程咨询有限公司 | Rotatable dual spindle drilling occluded side force-resistant guard post wall |
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| Publication number | Publication date |
|---|---|
| CN101544023A (en) | 2009-09-30 |
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