CN210341927U - Steel-pipe pile construction direction locating rack - Google Patents
Steel-pipe pile construction direction locating rack Download PDFInfo
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- CN210341927U CN210341927U CN201920810163.4U CN201920810163U CN210341927U CN 210341927 U CN210341927 U CN 210341927U CN 201920810163 U CN201920810163 U CN 201920810163U CN 210341927 U CN210341927 U CN 210341927U
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Abstract
The utility model discloses a steel pipe pile construction guiding and positioning frame, belonging to the field of steel pipe pile construction, comprising an upper support frame and a lower support frame which are horizontally arranged; the upper and lower support frames comprise two groups of parallel cross beams and connecting frames arranged between the cross beams; the cross beam and the connecting frame surround the outer side of the pile position of the steel pipe pile; the upper and lower supporting frames are connected and supported through a plurality of vertical supporting beams; the bottom of the lower support frame is provided with a skid; a vertical jack is arranged between the lower support frame and the skid; the vertical jack is fixed in a box body A; the left end face and the right end face of the box body A are respectively welded with a cross beam of a lower support frame, and the rear end of the box body A is welded with a connecting frame of the lower support frame; and a transverse jack for adjusting the steel pipe pile is arranged in the guide positioning frame, and a base of the transverse jack is connected with the side wall of the vertical supporting beam. The utility model can accurately adjust the position and verticality of the steel pipe pile, and has accurate positioning, simple structure, convenient operation, safety and reliability; can be further popularized in the construction of the fields of ports, wharfs and the like.
Description
Technical Field
The utility model relates to a steel-pipe pile construction field, concretely relates to steel-pipe pile construction guiding orientation frame.
Background
The steel pipe pile has the advantages of high bearing capacity, strong transverse force resistance, high design flexibility, easy pile length adjustment and the like, so the steel pipe pile is more and more widely applied to port engineering, building bridges and underwater engineering. However, when the steel pipe pile is constructed at present, one positioning method for the steel pipe pile is to directly hoist and place the steel pipe pile by matching a measuring and paying-off crane, and the other positioning method is to limit the steel pipe pile by a guide frame. However, the two methods are difficult to accurately control the pile position deviation and the pile body verticality in the construction process, the on-site actual pile position and the pile foundation bearing capacity of the steel pipe pile are often measured and monitored due to construction errors, the design drawing is recalculated and adjusted accordingly, even waste piles are generated, the continuous operation of the subsequent pile sinking process is influenced, and the construction quality of the steel pipe pile cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel-pipe pile construction guiding orientation frame to the above-mentioned technical problem who exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a steel pipe pile construction guiding and positioning frame comprises an upper support frame and a lower support frame which are horizontally arranged and have the same structure; the upper support frame and the lower support frame both comprise two groups of parallel cross beams and a plurality of connecting frames arranged between the cross beams; the cross beam and the connecting frame surround the outer side of the pile position of the steel pipe pile; the upper and lower supporting frames are connected and supported through a plurality of vertical supporting beams; the bottom of the lower support frame is provided with a skid; vertical jacks for supporting the whole guide positioning frame are respectively arranged between the four corners of the lower supporting frame and the skid; each vertical jack is fixed in a square box body A; the left end face and the right end face of the box body A are respectively fixed with a cross beam of the lower support frame, and the rear end of the box body A is fixed with a connecting frame of the lower support frame.
Further, box body A is towards whole direction locating rack outside opening.
Further, a transverse connecting steel plate, a fixed steel plate and a plurality of reinforcing steel plates are sequentially arranged at the upper end of the base of the vertical jack; the base of the vertical jack is fixed on the transverse connecting steel plate, and the transverse connecting steel plate is connected with the fixed steel plate; a reinforcing steel plate is arranged between the top of the box body A and the fixed steel plate; the bottom of the box body A is provided with an opening matched with a top disc of the jack; the top disc penetrates through the opening hole to be supported at the upper end of the skid.
Furthermore, a plurality of layers of transverse jacks for adjusting the steel pipe piles are arranged in the guide positioning frame, and bases of the transverse jacks are connected with the side walls of the vertical supporting beams.
Further, the side wall of the vertical supporting beam is connected with a vertical connecting steel plate; in the connecting area, a plurality of reinforcing plates are arranged on two sides in the supporting beam; and the base of the transverse jack is welded and fixed on the vertical connecting steel plate.
Further, a box body B with one open end is welded at the top end of a top plate of the transverse jack; the opening end of the box body B is opposite to the top disc; and a rubber block is fixed in the box body B, one end of the rubber block is arranged in the box body B, and the other end of the rubber block extends out of the box body B through the opening end and is in contact with the side wall of the steel pipe pile.
Further, the connecting frame comprises an inner connecting frame and an outer connecting frame which are arranged in parallel; two sides of the steel pipe pile are respectively provided with an inner connecting frame, and the outer side of each inner connecting frame is provided with an outer connecting frame; and a reinforcing rod is vertically welded between the inner connecting frame and the corresponding outer connecting frame.
Furthermore, two auxiliary fixing piles are respectively arranged on two sides of the steel pipe pile; each auxiliary fixing pile is clamped in the square auxiliary fixing pile position hole; the auxiliary fixing pile position holes of the upper and lower support frames where the same auxiliary fixing pile is located correspond to each other; the auxiliary fixing pile position hole is composed of a cross beam, an outer side connecting frame and two fixing frames which are perpendicular to each other.
The utility model has the advantages and positive effects that:
the utility model provides a steel-pipe pile construction guiding orientation frame and construction method, the guiding orientation frame of this project processing preparation has set up 4 vertical jacks in the bottom, has set up 8 horizontal jacks of upper and lower two-layer four directions in the leading truck. The guide positioning frame is in a horizontal state by adjusting 4 vertical jacks arranged at the bottom, the whole displacement of the guide positioning frame is limited by driving auxiliary fixing piles, and the position and the verticality of the steel pipe pile are accurately adjusted by adjusting 8 transverse jacks in four directions of an upper layer and a lower layer in the guide positioning frame; through engineering examples, the deviation of pile sinking of the steel pipe pile is within 30mm, the deviation of perpendicularity of the pile body is within 2mm/m, and the deviation is far lower than the deviation allowed by the permanent steel pipe pile on-ground pile sinking required by the standard, so that the construction quality of the steel pipe pile is guaranteed; the steel pipe pile construction guiding and positioning frame provided by the utility model can comprehensively consider different diameters of the steel pipe pile to be constructed, the jacking length of a jack and the like when in manufacturing, and determine the size of the guiding and positioning frame, and the guiding and positioning frame processed in the engineering example is used for the construction of steel pipe piles with two different diameters of phi 1016mm and phi 813 mm; meanwhile, when concrete in the pile is poured, the guide positioning frame can also be used as a fixing platform of the concrete guide pipe, and the utilization degree of the guide positioning frame is fully exerted. The jack welding that uses in this project is fixed in on the connecting steel plate, and the connecting steel plate passes through bolted connection and is connected with the fixed steel sheet in vertical supporting beam, the box body, in case the jack takes place to damage, can be convenient replace.
The utility model has simple structure, convenient operation, safety and reliability; can be further popularized in the construction of the fields of port engineering, building bridges, underwater engineering and the like.
Description of the drawings:
FIG. 1 is a top view of a guide positioning frame in a preferred embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a detail view of the fixing of the vertical jack in the preferred embodiment of the present invention;
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
FIG. 6 shows the cross jack attachment details in a preferred embodiment of the present invention;
fig. 7 is a sectional view taken along line C-C of fig. 6.
Wherein: 1. an upper support frame; 1-1, a cross beam; 1-1a, a hook; 1-2, an inner connecting frame; 1-3, an outer connecting frame; 2. a lower support frame; 3. a vertical support beam; 3-1, a flange plate; 3-2, a web; 3-3, reinforcing plates; 4. an oblique support beam; 5. wood padding; 6. a vertical jack; 7. a box body A; 7-1, transversely connecting steel plates; 7-2, fixing a steel plate; 7-3, reinforcing steel plates; 7-4, opening holes; 8. a transverse jack; 9. vertically connecting steel plates; 10. a box body B; 10-1, rubber blocks; 10-1a, a through hole; 10-2, iron wires; 11. a reinforcing bar; 12. auxiliary fixing piles; 13. a fixed mount; 14. auxiliary fixing pile position holes; 15. provided is a steel pipe pile.
Detailed Description
For further understanding of the contents, features and functions of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings as follows:
as shown in fig. 1 to 3, the utility model discloses a guiding and positioning frame for steel pipe pile construction, which comprises an upper support frame 1 and a lower support frame 2 which are horizontally arranged and have the same structure; the upper and lower support frames 2 comprise two groups of parallel beams 1-1 and a plurality of connecting frames arranged between the beams 1-1; the cross beam 1-1 and the connecting frame surround the outer side of the pile position of the steel pipe pile 15; the upper and lower supporting frames 2 are connected and supported by a plurality of vertical supporting beams 3; in order to improve the supporting strength, an inclined supporting beam 4 is arranged between the adjacent vertical supporting beams 3 along the diagonal direction to form a stable triangular support;
as shown in fig. 4 and 5, a skid 5 is arranged at the bottom of the lower support frame 2; vertical jacks 6 for supporting the whole guide positioning frame are respectively arranged between the four corners of the lower support frame 2 and the skid 5; specifically, the vertical jack 6 is arranged in a square box A7 made of a steel plate with the thickness of 20 mm; the vertical jack 6 is connected with the box body A7 in a mode that the top plate faces downwards and the bottom faces upwards; the base of the vertical jack 6 is connected with the top wall of the box body A7; specifically, the upper end of the base of the vertical jack 6 is sequentially provided with a transverse connecting steel plate 7-1, a fixed steel plate 7-2 and a plurality of reinforcing steel plates 7-3; the base of the vertical jack 6 is welded with the bottom end of the transverse connecting steel plate 7-1; the fixed steel plate 7-2 and the transverse connecting steel plate 7-1 are connected into a whole through threads; the plurality of reinforced steel plates 7-3 are arranged in parallel along the vertical direction, one end of each reinforced steel plate 7-3 is welded with the top wall of the box body A7, and the other end of each reinforced steel plate 7-2 is welded with the fixed steel plate 7-2. Preferably, the bottom of the box body A7 is provided with an opening 7-4 matched with the top disc of the vertical jack 6; the top disc penetrates through the opening 7-4 to be in contact with the skid 5, and when the vertical jack 6 works, the top disc on the vertical jack 6 can act on the skid 5 through the opening, so that the level of the whole guide positioning frame can be adjusted;
the left end face and the right end face of the box body A7 are respectively welded with a cross beam of the lower support frame 2, and the rear end of the box body A7 is welded with a connecting frame of the lower support frame 2, so that the vertical jack 6 is connected with the whole guide positioning frame into a whole through the box body A7; the front end of box body A7 is towards the outside opening of whole guide positioning frame, and the constructor of being convenient for like this operates vertical jack 6 to can observe vertical jack 6's connection and operating condition at any time, guarantee safe in utilization, still can be used to tear vertical jack 6 open and trade simultaneously.
As shown in fig. 6 and 7, the steel pipe pile 15 is placed in a space formed by the cross beam 1-1 of the upper and lower support frames 2 and the connecting frame; the inside of the guide positioning frame is provided with 8 transverse jacks 8 in 4 directions of an upper layer and a lower layer, namely the 8 transverse jacks 8 jack the steel pipe pile 15 from 4 directions so as to adjust and keep the verticality and position of the steel pipe pile 15;
preferably, the base of the transverse jack 8 is connected with the side wall of the vertical supporting beam 3; specifically, the side wall of the vertical supporting beam 3 is in threaded connection with a vertical connecting steel plate 9 with the thickness of 20 mm; the base of the transverse jack 8 is welded with the vertical connecting steel plate 9; a box body B10 with one open end is welded at the top end of the top plate of the transverse jack 8; the open end of the box body B10 is opposite to the top disc; a rubber block 10-1 is fixed in the box body B10, one end of the rubber block 10-1 is arranged in the box body B10, and the other end of the rubber block 10-1 extends out of the box body B10 through the opening end and is in contact with the side wall of the steel pipe pile 15; preferably, two parallel through holes 10-1a are formed in the rubber block 10-1 in the vertical direction, the rubber block 10-1 is bound and fixed on the box body B10 in a mode that an iron wire 10-2 penetrates through the through holes 10-1a, namely, the rubber block 10-1 is fixed and detached by a very low-cost and simple method, the transverse jack 8 is prevented from directly contacting the steel pipe pile 15, and damage to an anticorrosive coating of the steel pipe pile 15 is reduced.
Preferably, the utility model discloses a vertical jack and horizontal jack all adopt screw jack, because screw jack can support the heavy object for a long time, the maximum lifting capacity has reached 100 tons, use extensively, can select suitable model according to the site conditions in practical application; table 1 shows the usual jack screw specifications:
TABLE 1 screw jack technical parameters
| Model number | Elevating capacity (t) | Lifting height (mm) | Minimum height (mm) | Net weight (Kg) |
| QL3.2 screw jack | 3.2 | 110 | 200 | 6 |
| |
5 | 130 | 250 | 7 |
| |
8 | 140 | 260 | 10 |
| |
10 | 150 | 280 | 11 |
| |
10 | 80 | 192 | 10 |
| QL16 screw jack | 16 | 180 | 320 | 14.5 |
| QL20 screw jack | 20 | 180 | 325 | 18 |
| QLD25 screw jack | 25 | 125 | 262 | 20 |
| QL32 screw jack | 32 | 200 | 395 | 24 |
| QLD32 screw jack | 32 | 180 | 320 | 20 |
| QL50 screw jack | 50 | 250 | 452 | 45 |
| QLZ50 screw jack | 50 | 400 | 700 | 109 |
| QL100 screw jack | 100 | 200 | 455 | 86 |
The project mainly utilizes H-shaped steel, I-shaped steel, channel steel and other section steel materials to form a guide positioning frame by welding, and also belongs to the protection scope of the utility model by utilizing other steel materials or similar structural forms formed by connecting modes; preferably, the cross beam 1-1, the vertical supporting beam 3 and the connecting frame are all made of H steel; as is known, the H steel comprises a flange plate 3-1 and a web plate 3-2; the bottom of the transverse jack 8 is connected with the corresponding side cross beam 1-1 or the flange plate 3-1 of the connecting frame; in order to enhance the supporting strength of the transverse jack 8, a plurality of reinforcing plates 3-3 are arranged on two sides of a web plate 3-2 of the vertical supporting beam 3, and the reinforcing plates 3-3 are welded with the inner side of the vertical supporting beam 3;
preferably, the connecting frame comprises an inner connecting frame 1-2 and an outer connecting frame 1-3 which are arranged in parallel; two sides of the steel pipe pile 15 are respectively provided with an inner connecting frame 1-2, and the outer side of each inner connecting frame 1-2 is provided with an outer connecting frame 1-3; in order to strengthen the connection strength between the connecting frames, a reinforcing rod 11 is vertically welded between the inner connecting frame 1-2 and the corresponding outer connecting frame 1-3;
in order to further position the guide positioning frame and limit the movement of the guide positioning frame in the construction process of the steel pipe pile, auxiliary fixing piles 12 are also arranged in the upper support frame 2 and the lower support frame 2; preferably, two auxiliary fixing piles 12 are respectively arranged on two sides of the steel pipe pile 15; each auxiliary fixing pile 12 is arranged in an auxiliary fixing pile position hole 14 formed by the cross beam 1-1 at the corresponding side, the outer side connecting frame 1-3 and two mutually vertical fixing frames 13; the positions of auxiliary fixing pile position holes 14 of the upper and lower support frames where the same auxiliary fixing pile 12 is located correspond to each other; the auxiliary fixing pile position hole 14 is a square hole, so that the outer side of the auxiliary fixing pile 12 and the inner side of the auxiliary fixing pile position hole 14 are horizontally limited through clamping, the possibility of horizontal movement of the guide positioning frame is eliminated, and the positioning accuracy of the steel pipe pile 15 is guaranteed;
preferably, two ends of the cross beam 1-1 of the upper support frame 1 are provided with lifting hooks 1-1a for lifting.
The utility model also discloses a construction method of above-mentioned steel-pipe pile construction direction locating rack, this method includes following step:
s1, hoisting the guide positioning frame in place by using a crane according to the measurement paying-off result, and placing a skid 5 below the guide positioning frame; in the positioning process, a crowbar can be manually used to match with a crane to adjust the specific position of the guide positioning frame, and meanwhile, a total station is used for observation at any time to ensure that the guide positioning frame is accurately positioned;
s2, ensuring that the guide positioning frame is in a horizontal state by adjusting 4 vertical jacks 6 at the bottom of the guide positioning frame;
s3, driving 4 auxiliary fixing piles 12 on two sides of the guide positioning frame according to the diagonal sequence: firstly, hoisting the auxiliary fixing piles 12 into the auxiliary fixing pile position holes 14 on the two sides of the guide frame by using a crane, and then driving the auxiliary fixing piles 12 by using an electric vibration hammer, wherein the driving depth of the auxiliary fixing piles 12 is 3m or the driving depth is not more than 20 mm/min;
s4, adjusting 4 vertical jacks 6 at the bottom of the guide positioning frame again to ensure that the guide positioning frame is in a horizontal state;
s5, hanging the processed steel pipe pile 15 into a position between two inner side connecting frames 1-2 and opposite to a pile position by using a crane, adjusting 8 transverse jacks 8 by matching with a total station when the bottom of the steel pipe pile 15 is about 20cm away from the ground, keeping the steel pipe pile 15 vertical and on the accurate pile position, moving a crane hook slowly, enabling the crane hook, an electric vibration hammer and the steel pipe pile 15 to be positioned on the same verticality, rechecking the verticality and the pile position of the steel pipe pile 15 again, and adjusting all the transverse jacks 8 in a guide positioning frame after rechecking is correct, so that a rubber block is just attached to the wall of the steel pipe pile;
s6, slowly lowering the lifting hook by the crane to enable the steel pipe pile 15 to fall into the pile position under the action of self weight, rechecking the pile position after the steel pipe pile 15 does not sink any more, and preparing the subsequent pile sinking process.
Taking a Congo (Bu) Bulakeville autonomous harbor repair upgrading project built by our company as an example, because the contract requirement of the project meets the French standard, and the steel pipe pile is used as a permanent support pile of the autonomous harbor wharf, the French standard has high requirements on the pile body verticality and the pile position allowable deviation precision of the steel pipe pile; and the project is located in the city of Buguo (Buguo) capital Bulakeville, in the whole construction process, the autonomous harbor is in the state of partial regional construction and partial regional operation, the personnel in the harbor are mixed, the project is high in attention degree, the quality accident is generated, the project progress is influenced, and the image of the Chinese construction enterprise is seriously damaged. In order to ensure the smooth implementation of the project, project personnel continuously strive to ensure that the construction method of the steel pipe pile construction guide positioning frame is successfully applied;
the result proves, this engineering uses the utility model discloses a 15 pile sinking deviations of steel-pipe pile are within 30mm, pile body straightness deviation of hanging down is within 2mm/m, the precision is higher than the 15 land pile sinking allowed deviation of permanent steel-pipe pile 15 that the standard required far away, construction quality for steel-pipe pile 15 provides the guarantee, the steel-pipe pile construction that adopts this application to accomplish all once only passes through france supervision engineer's acceptance, the control method that owner, france designer engineer, france supervision engineer all given high evaluation to this project steel-pipe pile construction; the steel pipe pile construction guiding and positioning frame provided by the utility model can comprehensively consider different diameters of the construction steel pipe pile 15, the jacking length of the jack and the like during the manufacturing process, and determine the size of the guiding and positioning frame; for example, the guide positioning frame in the engineering example can be used for the construction of steel pipe piles with different diameters of phi 1016mm and phi 813 mm; the transverse jack is a QL8 screw jack, the minimum height of the transverse jack is 260mm, and the lifting height can reach 140mm, so that the same guide positioning frame is adopted, and the different lifting heights of the screw jack can be adjusted during construction to adapt to the construction of steel pipe piles with different diameters.
Meanwhile, when concrete in the pile is poured, the guide positioning frame can also be used as a fixing platform of the concrete guide pipe, so that the utilization degree of the guide positioning frame is fully exerted; the method has certain guiding significance for the construction of similar steel pipe piles in the future.
The embodiments of the present invention have been described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (8)
1. The utility model provides a steel-pipe pile construction guiding orientation frame which characterized in that: comprises an upper support frame and a lower support frame which are horizontally arranged and have the same structure; the upper support frame and the lower support frame both comprise two groups of parallel cross beams and a plurality of connecting frames arranged between the cross beams; the cross beam and the connecting frame surround the outer side of the pile position of the steel pipe pile; the upper and lower supporting frames are connected and supported through a plurality of vertical supporting beams; the bottom of the lower support frame is provided with a skid; vertical jacks for supporting the whole guide positioning frame are respectively arranged between the four corners of the lower supporting frame and the skid; each vertical jack is fixed in a square box body A; the left end face and the right end face of the box body A are respectively fixed with a cross beam of the lower support frame, and the rear end of the box body A is fixed with a connecting frame of the lower support frame.
2. The steel pipe pile construction guiding and positioning frame of claim 1, wherein: the box body A is opened towards the outer side of the whole guide positioning frame.
3. The steel pipe pile construction guiding and positioning frame of claim 1, wherein: the upper end of the base of the vertical jack is sequentially provided with a transverse connecting steel plate, a fixed steel plate and a plurality of reinforcing steel plates; the base of the vertical jack is fixed on the transverse connecting steel plate, and the transverse connecting steel plate is connected with the fixed steel plate; a reinforcing steel plate is arranged between the top of the box body A and the fixed steel plate; the bottom of the box body A is provided with an opening matched with a top disc of the jack; the top disc penetrates through the opening hole to be supported at the upper end of the skid.
4. The steel pipe pile construction guiding and positioning frame of claim 1, wherein: a plurality of layers of transverse jacks for adjusting the steel pipe piles are arranged in the guide positioning frame, and bases of the transverse jacks are connected with the side walls of the vertical supporting beams.
5. The steel pipe pile construction guiding and positioning frame of claim 4, wherein: the side wall of the vertical supporting beam is connected with a vertical connecting steel plate; in the connecting area, a plurality of reinforcing plates are arranged on two sides in the supporting beam; and the base of the transverse jack is welded and fixed on the vertical connecting steel plate.
6. The steel pipe pile construction guiding and positioning frame of claim 4, wherein: a box body B with one open end is welded at the top end of the top plate of the transverse jack; the opening end of the box body B is opposite to the top disc; and a rubber block is fixed in the box body B, one end of the rubber block is arranged in the box body B, and the other end of the rubber block extends out of the box body B through the opening end and is in contact with the side wall of the steel pipe pile.
7. The steel pipe pile construction guiding and positioning frame of claim 1, wherein: the connecting frame comprises an inner connecting frame and an outer connecting frame which are arranged in parallel; two sides of the steel pipe pile are respectively provided with an inner connecting frame, and the outer side of each inner connecting frame is provided with an outer connecting frame; and a reinforcing rod is vertically welded between the inner connecting frame and the corresponding outer connecting frame.
8. The steel pipe pile construction guiding and positioning frame of claim 7, wherein: two auxiliary fixing piles are respectively arranged on two sides of the steel pipe pile; each auxiliary fixing pile is clamped in the square auxiliary fixing pile position hole; the auxiliary fixing pile position holes of the upper and lower support frames where the same auxiliary fixing pile is located correspond to each other; the auxiliary fixing pile position hole is composed of a cross beam, an outer side connecting frame and two fixing frames which are perpendicular to each other.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920810163.4U CN210341927U (en) | 2019-05-30 | 2019-05-30 | Steel-pipe pile construction direction locating rack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920810163.4U CN210341927U (en) | 2019-05-30 | 2019-05-30 | Steel-pipe pile construction direction locating rack |
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| CN210341927U true CN210341927U (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106881A (en) * | 2019-05-30 | 2019-08-09 | 中国电建市政建设集团有限公司 | A kind of steel-pipe pile construction guidance locating rack and construction method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106881A (en) * | 2019-05-30 | 2019-08-09 | 中国电建市政建设集团有限公司 | A kind of steel-pipe pile construction guidance locating rack and construction method |
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