CN103696419A - Pile foundation construction fabricated casing and using method thereof - Google Patents
Pile foundation construction fabricated casing and using method thereof Download PDFInfo
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- CN103696419A CN103696419A CN201310704550.7A CN201310704550A CN103696419A CN 103696419 A CN103696419 A CN 103696419A CN 201310704550 A CN201310704550 A CN 201310704550A CN 103696419 A CN103696419 A CN 103696419A
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Abstract
The invention relates to the field of building pile foundation construction machinery, particularly to a pile foundation construction fabricated casing. The pile foundation construction fabricated casing is characterized by comprising a plurality of arc-shaped sections which are sequentially connected end to end to form a drum structure; every arc-shaped section mainly comprises an arc board, the left side of the arc board is provided with a pin shaft, the right side of the arc board is provided with a snapping sleeve, and the internal snapping slot of the snapping sleeve is matched with the pin shaft in shape; two neighboring arc-shaped sections are connected by inserting the corresponding pin shaft inside the corresponding snapping sleeve, and meanwhile, the pin shaft can rotate in the corresponding snapping sleeve; the rotating angle of the two neighboring arc-shapes sections can change from minus 4 degrees to 11 degrees. Composed of the plurality of arc-shaped section, the pile foundation construction fabricated casing can change the angle within a certain range to become casings with different diameters.
Description
Technical field
The present invention relates to buildings pile construction equipment field, be specifically related to assembling casing and using method thereof for a kind of pile foundation construction.
Background technology
Casing is a kind of facility of buildings pile construction, is conventionally embedded in the aperture of pile foundation, prevents subsiding of aperture ground surface soil, and forming machinery is play the guiding role.Conventionally casing diameter is than large 200mm left and right, stake footpath, not high to the required precision of casing diameter deviation during pile foundation pore-forming.
Every pile foundation engineering has the stake type of multiple diameter conventionally, often will configure the casing of multiple different size to meet construction demand according to stake footpath difference.Casing is hollow structure, and bulk density is relatively light, but that integral body takes up room is larger.In transportation, take the haulage vehicle usefull space, and easily distortion in transportation loading and unloading process, especially, in long-distance transportation process, the cost of transportation of casing is higher, and it is unfavorable that construction is produced.
Summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide assembling casing and using method thereof for a kind of pile foundation construction, this casing is comprised of the arcuation segmentation of some segment standard, can change within the specific limits angle, forms the casing of different-diameter.
For achieving the above object, the technical solution used in the present invention is:
A pile foundation construction assembling casing, is characterized in that: this casing is mainly comprised of some sections of arcuation segmentations, and described some sections of arcuation segmentations join end to end successively and form a cylinder type; Described arcuation segmentation mainly comprises arc plate, and the left side of described arc plate is provided with bearing pin, and the right side of arc plate is provided with bearing pin and is arranged symmetrically with cutting ferrule, and shape and the bearing pin of the inner draw-in groove of described cutting ferrule match; The mode that adjacent two arcuation segmentations are inserted in cutting ferrule by bearing pin connects, and bearing pin can rotate in cutting ferrule, and the rotational angle between described adjacent two arcuation segmentations converts between-4 ° to 11 °.
The cross section of described cutting ferrule is fishhook-type, and the inside draw-in groove of cutting ferrule outwardly; On described arc plate, near bearing pin place, evenly offer from top to bottom a plurality of bolts hole, in each bolt hole, be screwed with adjusting bolt, the bottom of described adjusting bolt is against on cutting ferrule.
Described pile foundation construction also comprises a top reinforcement hoop with assembling casing, and the upper end of described arc plate offers for strengthening with top the connecting bolt hole that hoop is connected; Hoop is strengthened by being welded along oralia and upper ring-type steel ring in described top, on upper ring-type steel ring, offer the bolt hole that a circle and connecting bolt hole, arc plate upper end adapt, it is inner that described upper ring-type steel ring is positioned at above-mentioned casing upper end, and be fixedly connected with arc plate by flat base bolt.
Described pile foundation construction also comprises a bottom reinforcement hoop with assembling casing, and the lower end of described arc plate offers for strengthening with bottom the connecting bolt hole that hoop is connected; It is a lower ring-type steel ring that hoop is strengthened in described bottom, and on this lower ring-type steel ring, offers the bolt hole that a circle and connecting bolt hole, arc plate lower end adapt, and this lower ring-type steel ring is positioned at inside, above-mentioned casing lower end, and is fixedly connected with arc plate by flat base bolt.
Described lower ring-type steel ring is split into 3-4 section radian plate, and is fixedly connected with arc plate by the flat base bolt of plastics.
Described arc plate be take Φ 1200mm radian as standard making, and arc length is 314mm, is highly 2000mm; The casing of described Φ 1000mm is comprised of 10 arcuation segmentations, and the casing of Φ 1200mm forms by 12, and the casing of Φ 1400mm forms by 14, and the rest may be inferred for all the other sizes.
The using method of assembling casing for pile foundation construction, is characterized in that comprising the following steps:
1) make the identical arcuation segmentation of polylith: first making polylith radian is Φ 1200mm, and arc length is 314mm, is highly the arc plate of 2000mm, then welds respectively a bearing pin and a cutting ferrule in the left and right sides of every block of arc plate;
2) diameter is as required selected the arcuation segmentation of concrete piece number, and spreads one deck butter in the cutting ferrule 3 of all arcuation segmentations; Bearing pin in a rear arcuation segmentation is inserted to the cutting ferrule of last arcuation segmentation, the segmentation of polylith arcuation is joined end to end successively form a cylinder type by that analogy;
3) regulate all adjusting bolts, the bottom of each adjusting bolt is against on corresponding cutting ferrule;
4) install bottom and strengthen hoop: the upper ring-type steel ring of first top being strengthened to hoop inserts in the top of casing, with flat base bolt, connects; Just bottom is strengthened, in the bottom of hoop insertion casing, adopting flat base bolt to connect again.
The pile foundation construction lengthening an assembling casing, is characterized in that: it comprises a plurality of pile foundation construction assembling casings that connect up and down, and described pile foundation construction all offers connecting bolt hole with the two ends up and down of every block of arc plate in assembling casing; Neighbouring two connect pile foundation construction with connecting by polylith junction plate between assembling casing, described polylith junction plate uses the link of assembling casing around a circle adjacent two pile foundation constructions, every junction plate is provided with the two rows bolt hole corresponding with connecting bolt hole on arc plate, upper row's bolt hole and superposed arc plate are bolted, and lower row's bolt hole is bolted with the arc plate that is positioned at bottom.
The invention has the beneficial effects as follows: casing of the present invention is comprised of some sections of arcuation segmentations, can change within the specific limits angle, form the casing of different-diameter.Casing is made to the arc structure that multi-disc is general, every casing is comprised of the arcuation segmentation of some segment standard, between segmental arc, adopt plug-type occlusion structure to connect, segmental arc has certain activity surplus after connecting, can in limited range, change angle, form the casing of different-diameter (Φ 1000mm to Φ 3000mm).And by reinforcement, bind round casing top and the bottom are reinforced, it is formed whole, increase steadiness.Arcuation is adjusted by adjusting bolt after dividing intersegmental gap to connect, and increases the rigidity of the rear casing of assembling, reduces distortion.Can to the casing assembling, carry out spreading by junction plate, satisfy the demand and use the scene needs of long casing.At casing, pull out difficult place, can carry out burst to casing and pull out.Casing is made the segmentation of standard and is assembled, and has reduced the demand of job site casing, has reduced construction cost; The vehicle space taking in the time of can also reducing transportation, reduces cost of transportation; The sliceable casing that goes out various regular sizes, realizes the standardization of construction equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of arcuation segmentation.
Fig. 2 is the top view of arcuation segmentation in Fig. 1.
Fig. 3 is the top view of the cylinder type of some sections of arcuation segmentation compositions in embodiment 1.
Fig. 4 is that bearing pin 2 is inserted in the partial schematic diagram in cutting ferrule 3.
Fig. 5 is the three-view diagram (front view, upward view and right view) that hoop is strengthened on top.
Fig. 6 is front view and the top view that hoop is strengthened in bottom.
Fig. 7 is the lateral plan of assembling casing for embodiment 1 pile foundation construction.
Fig. 8 is the structural representation at junction plate place in embodiment 2.
In figure: 1-arc plate; 2-bearing pin; 3-cutting ferrule; 4-adjusting bolt; 5-connecting bolt hole; 6-is along oralia; The upper ring-type steel ring of 7-; Ring-type steel ring under 8-; 9-junction plate.
The specific embodiment
For a better understanding of the present invention, with specific embodiment, the present invention is described further by reference to the accompanying drawings (as shown in Fig. 1-8) below.
As shown in Figure 1, 2, 3, a kind of pile foundation construction assembling casing, is characterized in that: this casing is mainly comprised of some sections of arcuation segmentations, and described some sections of arcuation segmentations join end to end successively and form a cylinder type; Described arcuation segmentation mainly comprises arc plate 1, and the left side of described arc plate 1 is provided with bearing pin 2, and the right side of arc plate 1 is provided with bearing pin 2 and is arranged symmetrically with cutting ferrule 3, and shape and the bearing pin 2 of described cutting ferrule 3 inner draw-in grooves match; The mode that adjacent two arcuation segmentations are inserted in cutting ferrule 3 by bearing pin 2 connects, and bearing pin 2 can be in the interior rotation of cutting ferrule 3, rotational angle between described adjacent two arcuation segmentations is conversion between-4 ° to 11 ° (angle between adjacent two arcuation segmentations refers to the angle between the tangent line at adjacent two arcuation connection segment places, and the direction of casing inner side is negative angle direction).
As shown in Figure 4, the cross section of described cutting ferrule 3 is fishhook-type, (opening of inner draw-in groove is less than bearing pin 2 diameters to the inside draw-in groove of cutting ferrule 3 outwardly, and be greater than the thickness of arc plate 1 and bearing pin 2 junctions, the opening of cutting ferrule should meet bearing pin end arc plate to inside and outside rotation needs, makes the certain activity surplus that is connected with between arcuation segmentation; The long limit of described fishhook-type cutting ferrule 3 bends inwards 4 °, guarantees that the angle between two arcuation segmentations can reach-4 °); On described arc plate 1, near bearing pin 2 places, evenly offer from top to bottom a plurality of bolts hole (an optimum 3-4 of being), in each bolt hole, being screwed with the termination of adjusting bolt 4 described in adjusting bolt 4(is hemispherical), the bottom of described adjusting bolt 4 is against on cutting ferrule 3 and (is against on the long limit of fishhook-type cutting ferrule 3).
As shown in Figure 5, (the Length Ratio arc plate 1 short 300mm of described bearing pin 2, it is 150mm that the distance at the two ends up and down that are clipped to arc plate 1 is divided at the two ends up and down of bearing pin 2, described cutting ferrule 3 is identical and symmetrical with the length of bearing pin 2) described pile foundation construction also comprises that with assembling casing top strengthens hoop, the upper end of described arc plate 1 offers for strengthening with top the connecting bolt hole 5 that hoop is connected; Hoop is strengthened by being welded along oralia 6 and upper ring-type steel ring 7 in described top, on upper ring-type steel ring 7, offer the bolt hole that a circle and arc plate 1 connecting bolt hole, upper end 5 adapt, it is inner that described upper ring-type steel ring 7 is positioned at above-mentioned casing upper end, and be fixedly connected with arc plate 1 by flat base bolt.Described is annular steel plate along oralia 6, and upper ring-type steel ring 7 is cylindrical shape, is welded on the upper end of upper ring-type steel ring 7 along oralia 6, described upper ring-type steel ring 7, diameter and the internal diameter of this casing adapt.
As shown in Figure 6, described pile foundation construction also comprises a bottom reinforcement hoop with assembling casing, and the lower end of described arc plate 1 offers for strengthening with bottom the connecting bolt hole 5 that hoop is connected; It is a lower ring-type steel ring 8 that hoop is strengthened in described bottom, and on this lower ring-type steel ring 8, offer the bolt hole that a circle and arc plate 1 connecting bolt hole, lower end 5 adapt, it is inner that this lower ring-type steel ring 8 is positioned at above-mentioned casing lower end, and be fixedly connected with arc plate 1 by flat base bolt.Described lower ring-type steel ring 8 is cylindrical shape, and the diameter of described lower ring-type steel ring 8 and the internal diameter of this casing adapt.
Described lower ring-type steel ring 8 is split into 3-4 section radian plate, and is fixedly connected with arc plate 1 by the flat base bolt of plastics.When this casing is extracted more difficult occasion use, lower ring-type steel ring 8 can be split into 3-4 section radian plate, adopt the flat base bolt of plastics to connect.When casing is pulled out, hoop is strengthened in top and remove, then monolithic or be divided into several pieces arc plate 1 is extracted one by one, cuts off the flat base bolt of plastics, and lower ring-type steel ring 8 is stayed pile body outside, to pile foundation quality, can not impact.
Described arc plate 1 be take Φ 1200mm radian as standard making, and arc length is that 314mm(is that bearing pin 2 centers are to the arc length between cutting ferrule 3 centers), be highly 2000mm; The casing of described Φ 1000mm is comprised of 10 arcuation segmentations, and the casing of Φ 1200mm forms by 12, and the casing of Φ 1400mm forms by 14, and the rest may be inferred for all the other sizes (Φ 1000mm to Φ 3000mm).
The using method of assembling casing for above-mentioned pile foundation construction, is characterized in that comprising the following steps:
1) make the identical arcuation segmentation of polylith: first making polylith radian is Φ 1200mm, and arc length is 314mm, is highly the arc plate 1 of 2000mm, then welds respectively a bearing pin 2 and a cutting ferrule 3 in the left and right sides of every block of arc plate 1;
2) diameter is as required selected the arcuation segmentation of concrete piece number (casing of described Φ 1000mm is comprised of 10 arcuation segmentations, the casing of Φ 1200mm forms by 12, the casing of Φ 1400mm forms by 14, the rest may be inferred for all the other sizes), and spread one deck butter in the cutting ferrule 3 of all arcuation segmentations; Bearing pin in a rear arcuation segmentation 2 is inserted to the cutting ferrule 3 of last arcuation segmentation, the segmentation of polylith arcuation is joined end to end successively form a cylinder type by that analogy;
3) regulate all adjusting bolts 4, the bottom of each adjusting bolt 4 is against on corresponding cutting ferrule 3;
4) install bottom and strengthen hoop: the upper ring-type steel ring 7 of first top being strengthened to hoop inserts in the top of the casing assembling, and with flat base bolt, connects; Just bottom is strengthened binding round in the bottom of inserting the casing assembling again, adopts flat base bolt to connect.
The assembling moulding of assembling casing for above-mentioned pile foundation construction:
1, casing moulding of the present invention: the different choice arcuation fragmented blocks number of diameter as required, the bearing pin of one joint arcuation segmentation 2 is inserted in the cutting ferrule 3 of another joint arcuation segmentation, for preventing from getting rusty and foreign material enter impact and remove, can before connection, to bearing pin 2, cutting ferrule 3, spread sufficient butter.Each arcuation divides intersegmental mutual insertion, (cutting ferrule 3 and bearing pin 2 profiles of arcuation segmentation are larger, and module of anti-bending section is larger, can be as the force structure of this casing to connect from beginning to end successively moulding, bear soil pressure and various working load around, arc plate 1 can keep the casing overall structure complete); After casing assembling moulding, rotation gap by 2 of 4 pairs of cutting ferrules 3 of adjusting bolt and bearing pins regulates, reduce arcuation and divide intersegmental fit-up gap, prevent that the rotation of adjacent arcs plate in connection place from causing casing to lose circle, guarantee the circularity of the firm and casing of the global shape of casing;
2, hoop installation is strengthened in bottom: bottom is strengthened binding round in the bottom of inserting the casing assembling (for preventing that bolt head from hindering boring machine operation, connecting bolt adopts flat base bolt) with bolts;
3, the upper ring-type steel ring 7 of top being strengthened to hoop inserts in the casing top assembling, and with bolt, connects.So far, this casing assembling moulding, can come into operation (effect of strengthening hoop of described top is accident collision or to casing excessive compression while preventing from constructing, and protection and booster action is played in casing aperture, to improve turnover utilization rate).
The pile foundation construction lengthening an assembling casing, is characterized in that: it comprises a plurality of pile foundation construction assembling casings that connect up and down, and described pile foundation construction all offers connecting bolt hole 5 with the two ends up and down of every block of arc plate 1 in assembling casing; Neighbouring two connect pile foundation construction with connecting by polylith junction plate 9 between assembling casing, described polylith junction plate 9 uses the link of assembling casing around a circle adjacent two pile foundation constructions, every junction plate 9 is provided with the two rows bolt hole corresponding with connecting bolt hole 5 on arc plate 1, upper row's bolt hole and superposed arc plate 1 are bolted, and lower row's bolt hole is bolted with the arc plate 1 that is positioned at bottom.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalence of therefore doing according to the present patent application the scope of the claims changes, and still belongs to protection scope of the present invention.
Claims (8)
1. a pile foundation construction assembling casing, is characterized in that: this casing is mainly comprised of some sections of arcuation segmentations, and described some sections of arcuation segmentations join end to end successively and form a cylinder type; Described arcuation segmentation mainly comprises arc plate (1), and the left side of described arc plate (1) is provided with bearing pin (2), and the right side of arc plate (1) is provided with bearing pin (2) and is arranged symmetrically with cutting ferrule (3), and shape and the bearing pin (2) of the inner draw-in groove of described cutting ferrule (3) match; The mode that adjacent two arcuation segmentations are inserted in cutting ferrule (3) by bearing pin (2) connects, and bearing pin (2) can rotate in cutting ferrule (3), and the rotational angle between described adjacent two arcuation segmentations converts between-4 ° to 11 °.
2. pile foundation construction according to claim 1 assembling casing, is characterized in that: the cross section of described cutting ferrule (3) is fishhook-type, and the inside draw-in groove of cutting ferrule (3) outwardly; Described arc plate (1) is upper locates evenly to offer from top to bottom a plurality of bolts hole near bearing pin (2), is screwed with adjusting bolt (4) in each bolt hole, and the bottom of described adjusting bolt (4) is against on cutting ferrule (3).
3. pile foundation construction according to claim 1 and 2 assembling casing, is characterized in that: it also comprises a top reinforcement hoop, and the upper end of described arc plate (1) offers for strengthening with top the connecting bolt hole (5) that hoop is connected; Hoop is strengthened by being welded along oralia (6) and upper ring-type steel ring (7) in described top, on upper ring-type steel ring (7), offer the bolt hole that a circle and connecting bolt hole, arc plate (1) upper end (5) adapt, it is inner that described upper ring-type steel ring (7) is positioned at above-mentioned casing upper end, and be fixedly connected with arc plate (1) by flat base bolt.
4. pile foundation construction according to claim 3 assembling casing, is characterized in that: it also comprises a bottom reinforcement hoop, and the lower end of described arc plate (1) offers for strengthening with bottom the connecting bolt hole (5) that hoop is connected; It is a lower ring-type steel ring (8) that hoop is strengthened in described bottom, and on this lower ring-type steel ring (8), offer the bolt hole that a circle and connecting bolt hole, arc plate (1) lower end (5) adapt, it is inner that this lower ring-type steel ring (8) is positioned at above-mentioned casing lower end, and be fixedly connected with arc plate (1) by flat base bolt.
5. pile foundation construction according to claim 4 assembling casing, is characterized in that: described lower ring-type steel ring (8) is split into 3-4 section radian plate, and is fixedly connected with arc plate (1) by the flat base bolt of plastics.
6. pile foundation construction according to claim 1 assembling casing, is characterized in that: described arc plate (1) be take Φ 1200mm radian as standard making, and arc length is 314mm, is highly 2000mm; The casing of described Φ 1000mm is comprised of 10 arcuation segmentations, and the casing of Φ 1200mm forms by 12, and the casing of Φ 1400mm forms by 14, and the rest may be inferred for all the other sizes.
7. the using method of assembling casing for pile foundation construction, is characterized in that comprising the following steps:
1) make the identical arcuation segmentation of polylith: first making polylith radian is Φ 1200mm, and arc length is 314mm, is highly the arc plate (1) of 2000mm, then in the left and right sides of every block of arc plate (1), welds respectively a bearing pin (2) and a cutting ferrule (3);
2) diameter is as required selected the arcuation segmentation of concrete piece number, and spreads one deck butter in the cutting ferrule (3) of all arcuation segmentations; Bearing pin (2) in a rear arcuation segmentation is inserted to the cutting ferrule (3) of last arcuation segmentation, the segmentation of polylith arcuation is joined end to end successively form a cylinder type by that analogy;
3) regulate all adjusting bolts (4), the bottom of each adjusting bolt (4) is against on corresponding cutting ferrule (3);
4) install bottom and strengthen hoop: the upper ring-type steel ring (7) of first top being strengthened to hoop inserts in the top of casing, with flat base bolt, connects; Just bottom is strengthened, in the bottom of hoop insertion casing, adopting flat base bolt to connect again.
8. the pile foundation construction that can lengthen an assembling casing, it is characterized in that: it comprises the pile foundation construction assembling casing described in a plurality of claims 1 that connect up and down, and described pile foundation construction all offers connecting bolt hole (5) with the two ends up and down of the every block of arc plate (1) in assembling casing; Neighbouring two connect pile foundation construction with connecting by polylith junction plate (9) between assembling casing, described polylith junction plate (9) uses the link of assembling casing around a circle adjacent two pile foundation constructions, every junction plate (9) is provided with the two rows bolt hole corresponding with the upper connecting bolt hole (5) of arc plate (1), upper row's bolt hole and superposed arc plate (1) are bolted, and lower row's bolt hole is bolted with the arc plate (1) that is positioned at bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310704550.7A CN103696419B (en) | 2013-12-20 | 2013-12-20 | Pile foundation construction assembling casing and using method thereof |
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| CN201310704550.7A CN103696419B (en) | 2013-12-20 | 2013-12-20 | Pile foundation construction assembling casing and using method thereof |
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| CN103696419A true CN103696419A (en) | 2014-04-02 |
| CN103696419B CN103696419B (en) | 2015-12-30 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180367A (en) * | 2014-08-26 | 2014-12-03 | 西安热工研究院有限公司 | Slagging tube of fluidized-bed boiler |
| CN104264679A (en) * | 2014-09-23 | 2015-01-07 | 国家电网公司 | Construction method of tower transmission iron tower foundation large-diameter underwater cast-in-place piles |
| CN107461568A (en) * | 2017-09-13 | 2017-12-12 | 河北骥驰耐磨材料有限公司 | Joint bricks technique is pasted in the wear-resisting joint bricks and pipeline pasted in a kind of pipeline |
| CN109680684A (en) * | 2019-02-15 | 2019-04-26 | 中科兴创（北京）科技有限公司 | Variable diameter casing |
| CN112832237B (en) * | 2021-02-19 | 2024-04-26 | 中交路桥建设有限公司 | Assembled lengthening structure and method for steel casing for deep water pile foundation construction |
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| CN2818551Y (en) * | 2005-09-28 | 2006-09-20 | 河北建设勘察研究院有限公司 | Assembled steel guard cylinder |
| CN201144419Y (en) * | 2008-04-18 | 2008-11-05 | 田雨 | Recoverable steel guide sleeve of underwater cast-in-situ bored pile |
| CN202832270U (en) * | 2012-09-10 | 2013-03-27 | 宋俊 | Combined protective cylinder |
| CN103252832A (en) * | 2013-05-20 | 2013-08-21 | 中国地质大学（武汉） | Circular miniature slide-resistant pile die with adjustable height and adjustable sectional area |
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| GB2044320A (en) * | 1979-03-02 | 1980-10-15 | Lasalle Mfg 15 Ltd | Device for Locating Control Elements in Well Bores |
| CN1558044A (en) * | 2004-02-10 | 2004-12-29 | 李亚中 | Preparation method of manpower dug pile and lifting type combined forming device thereof |
| CN2818551Y (en) * | 2005-09-28 | 2006-09-20 | 河北建设勘察研究院有限公司 | Assembled steel guard cylinder |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180367A (en) * | 2014-08-26 | 2014-12-03 | 西安热工研究院有限公司 | Slagging tube of fluidized-bed boiler |
| CN104264679A (en) * | 2014-09-23 | 2015-01-07 | 国家电网公司 | Construction method of tower transmission iron tower foundation large-diameter underwater cast-in-place piles |
| CN104264679B (en) * | 2014-09-23 | 2016-03-30 | 国家电网公司 | A kind of electric power pylon basis heavy caliber Underwater pile construction method |
| CN107461568A (en) * | 2017-09-13 | 2017-12-12 | 河北骥驰耐磨材料有限公司 | Joint bricks technique is pasted in the wear-resisting joint bricks and pipeline pasted in a kind of pipeline |
| CN109680684A (en) * | 2019-02-15 | 2019-04-26 | 中科兴创（北京）科技有限公司 | Variable diameter casing |
| CN112832237B (en) * | 2021-02-19 | 2024-04-26 | 中交路桥建设有限公司 | Assembled lengthening structure and method for steel casing for deep water pile foundation construction |
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| Publication number | Publication date |
|---|---|
| CN103696419B (en) | 2015-12-30 |
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