CN104532840A - Embedded type construction precast pile following rod and pile following method thereof - Google Patents
Embedded type construction precast pile following rod and pile following method thereof Download PDFInfo
- Publication number
- CN104532840A CN104532840A CN201410839099.4A CN201410839099A CN104532840A CN 104532840 A CN104532840 A CN 104532840A CN 201410839099 A CN201410839099 A CN 201410839099A CN 104532840 A CN104532840 A CN 104532840A
- Authority
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- China
- Prior art keywords
- pile
- type construction
- flush type
- clip
- lock dog
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/06—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers for observation while placing
Abstract
The invention discloses an embedded type construction precast pile following rod and a pile following method of the embedded type construction precast pile following rod. The embedded type construction precast pile following rod comprises a clamp with a columnar clamping cavity, the lower portion of the columnar clamping cavity is open, the inner peripheral wall of the columnar clamping cavity is matched with the peripheral face of an embedded type construction precast pile, at least two open locking grooves are formed in the clamp around the circumferential face of the columnar clamping cavity at equal radian and can achieve fast clamping or loosening by rotating the clamp forwardly or reversely, locking blocks in guide-in locking fit with the open locking grooves are fixed to the pile top of the embedded type construction precast pile, a scaleplate rod with elevation scales is detachably and fixedly arranged in the center of the upper end face of the clamp, and a drill rod connecting arm capable of being in butt joint with a pile machine drill rod is arranged at the tail of the scaleplate rod. The embedded type construction precast pile following rod is simple in structure, high in construction efficiency and easy to control, the precast pile can be fed into specified depth accurately, and it is guaranteed that the elevation of the pile top meets the design and standard requirement.
Description
Technical field
The present invention relates to piling Technology field, particularly relate to a kind of flush type construction preformed pile pile follower construction technology, a kind of flush type construction preformed pile pile follower bar and pile follower method thereof specifically.
Background technology
At present, existing construction of prefabricated piles mainly contains three kinds of modes: paddle type mill, static pressure type and flush type.Hammering and static pressure are the constructions of traditional construction preformed pile, and flush type construction preformed pile is compared with traditional construction engineering method, its novel part relies on pile body deadweight preformed pile to be imbedded the construction method of stake holes after being to adopt boring, had flush type construction method and the length both factorial praluction preformed pile concurrently; And have employed the mode of stake end, cement paste around pile, and expansion bottom reason can be carried out to stake end, having the advantage of agitation pile, expanded bore pile concurrently, is a kind of new technology integrating multiple construction method advantage.
When adopting flush type construction preformed pile, then cannot adopt the pile follower bar that hammering or static pressure use, but by the bolt apertures that screw screws on pile end plate, stake and clip be fixed.This method constructional difficulties, clip and stake are difficult to be separated.And it is high uninterruptedly to need vertical chi to observe stake top mark in the process of pile follower, therefore cannot control accurately stake top mark is high in real time in pile follower process.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned prior art present situation, and provide simple for structure, easily control, and preformed pile can be sent into accurately the degree of depth of specifying, and can accurately control stake top mark is high in real time in pile follower process, ensure that stake top mark is up to a kind of flush type construction preformed pile pile follower bar and the pile follower method thereof that arrive design and code requirement.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of flush type construction preformed pile pile follower bar, comprise the clip with under shed cylindricality card chamber, the construct outer peripheral face of preformed pile of cylindricality card chamber internal perisporium and flush type is suitable, and clip has at least two opening locked grooves realizing by both forward and reverse directions rotation clip clamping fast or getting loose around radians such as the side faces in cylindricality card chamber, the stake top of flush type construction preformed pile is fixed with to import with opening locked groove locks friction tight lock dog, the center, upper surface of clip is installed with the scale bar with reference mark removedly, the afterbody of this scale bar is equipped with the drilling rod linking arm that can dock with stake driver drilling rod.
For optimizing technique scheme, the measure taked also comprises:
Above-mentioned opening locked groove tilts upward greatly gradually little guiding slot port by opening and forms with the horizontal locked groove of recessed lock dog locating slot with the guiding slot port end that is connected successively, and the center, upper surface of clip is provided with the convenient scale linking arm docked with scale bar.
Above-mentioned lock dog is integrally weldingly fixed on the stake top of flush type construction preformed pile, and proper the location with lock dog locating slot of part that this lock dog extends flush type construction preformed pile side face is matched, and the stake top of flush type construction preformed pile extend in cylindricality card chamber.
The diameter of above-mentioned scale bar is identical with stake driver drilling rod, and on this scale bar, the precision of reference mark is millimeter.
The length of above-mentioned scale bar is 1.5 meters to 2.5 meters, is preferably 2 meters.
Above-mentioned flush type construction preformed pile stake top is fixed with pile crown end plate, and lock dog is weldingly fixed on pile crown end plate.
Above-mentioned scale linking arm links with scale bar and is connected to a fixed, and the thickness of lock dog is 15 millimeters to 50 millimeters, is preferably 40 millimeters.
The first-class radian of above-mentioned clip is shaped with two opening locked grooves, and lock dog is the strip in-line iron block that flush type construction preformed pile pile body is extended at two ends.
The first-class radian of above-mentioned clip is shaped with two opening locked grooves, correspondingly lock dog be two or, the first-class radian of clip is shaped with three opening locked grooves, correspondingly lock dog be three or, the first-class radian of clip is shaped with four opening locked grooves, and correspondingly lock dog is four.
A pile follower method for flush type construction preformed pile pile follower bar, the method comprises the following steps:
Step one, before carrying out planting stake, first in the end one save flush type construction preformed pile stake top solder and opening locked groove equal amount lock dog, the position of this lock dog and size are all suitable with the opening locked groove of clip, and the bearing capacity of lock dog is greater than the weight of this flush type construction preformed pile;
Step 2, when to plant, when flush type construction preformed pile drops to by deadweight the position being convenient to connect clip, preformed pile fixator of being constructed by flush type is first fixed, and prevents it from declining; Stake driver drilling rod is moved to scale bar position simultaneously, drilling rod linking arm is connected on a driver drilling rod, then moves to clip position, by scale linking arm by clamp connection on scale bar;
Step 3, lifting stake driver drilling rod, the cylindricality card chamber of clip is made to aim at flush type construction preformed pile pile body, and adjust clip the guiding slot port of opening locked groove is just snapped in lock dog, then rotate clip by the direction that guiding slot port is sealed, make lock dog snap in the lock dog locating slot of opening locked groove;
The fixator of step 4, preformed pile of being constructed by flush type is decontroled, and then carries out pile follower;
In step 5, pile follower process, with level gauge alignment scale bar, being controlled stake top mark is high by the reference mark on Real Time Observation scale bar, ensureing that stake top mark is up to arriving design and code requirement.
Step 6, plant after stake completes, treat that flush type construction preformed pile is stablized, then clip is transferred appropriate location, to clip be reversely rotated again, and make opening locked groove from after lock dog produces, promote clip, preformed pile of whole pile follower bar and flush type being constructed is separated, then pull down clip and scale bar, clip and scale bar are placed on assigned address, complete flush type construction preformed pile pile follower process.
Compared with prior art, clip of the present invention has at least two opening locked grooves around radians such as the side faces in cylindricality card chamber, the stake top of flush type construction preformed pile is fixed with to import with opening locked groove locks friction tight lock dog, the center, upper surface of clip is installed with the scale bar with reference mark removedly, the afterbody of scale bar is equipped with the drilling rod linking arm that can dock with stake driver drilling rod, the relatively traditional pile follower bar of pile follower bar of the present invention is made to be provided with reference mark, thus in the process of pile follower, reference mark can be observed by the moment, realize accurately controlling object to stake top mark is high.The present invention simultaneously adopts opening locked groove and lock dog card to join sealed mode, together with preformed pile of clip and flush type being constructed is fixedly linked, not only be connected firmly, and remove and install all very convenient, the object that the rotation by both forward and reverse directions reaches locking or gets loose.
The present invention has preformed pile of flush type can being constructed and implants in pile anchoring hole, stake can be sent into designated depth accurately simultaneously, and can control accurately stake top mark is high in real time in pile follower process, ensures that stake top mark is up to arriving design and code requirement; Work progress easily controls, the clear and definite simple advantage of execution control.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is one of the state diagram that lock dog of the present invention is fixed on flush type construction preformed pile;
Fig. 4 is the state diagram two that lock dog of the present invention is fixed on flush type construction preformed pile.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 to Fig. 4 is structural representation of the present invention.
Reference numeral is wherein: flush type construction preformed pile A, clip 1, cylindricality card chamber 1a, opening locked groove 1b, guiding slot port 1c, horizontal locked groove 1d, lock dog locating slot 1e, scale linking arm 11, scale bar 2, lock dog 3, drilling rod linking arm 4.
As shown in Figures 1 to 4, a kind of flush type construction preformed pile pile follower bar of the present invention, comprise the clip 1 with under shed cylindricality card chamber 1a, the construct outer peripheral face of preformed pile A of cylindricality card chamber 1a internal perisporium and flush type is suitable, and clip 1 has at least two opening locked groove 1b realizing by both forward and reverse directions rotation clip 1 clamping fast or getting loose around radians such as the side faces of cylindricality card chamber 1a, the stake top of flush type construction preformed pile A is fixed with to import with opening locked groove 1b locks friction tight lock dog 3, the center, upper surface of clip 1 is installed with the scale bar 2 with reference mark removedly, the afterbody of this scale bar 2 is equipped with the drilling rod linking arm 4 that can dock with stake driver drilling rod.Pile follower bar traditional in prior art is all be connected by bolt and flush type preformed pile of constructing, this method of attachment removes and installs very difficult, efficiency limit, and in the process of pile follower, also will observe a top mark with vertical chi incessantly high, therefore work progress also relative complex.Pile follower bar of the present invention has opening locked groove 1b on clip 1, on the stake top of flush type construction preformed pile A, be fixed with the lock dog 3 corresponding with opening locked groove 1b simultaneously, when stake is connected with pile follower bar, when the stake top of flush type construction preformed pile A extend into cylindricality card chamber 1a, as long as adjustment clip 1 makes opening locked groove 1b aim at lock dog 3, then rotating clip 1 just can make lock dog 3 slip into locking position, thus realize flush type construction preformed pile A and be connected with the quick locking between pile follower bar, and after pile follower completes, need pile follower bar and flush type to construct preformed pile A when being separated, then can by reversely rotating clip 1, opening locked groove 1b is made to produce lock dog 3.Due to pile follower bar of the present invention being also provided with scale bar 2, with reference mark on scale bar 2, therefore in the process of pile follower, observe reference mark by the moment, just can realize the accurate control high to stake top mark.Structure of the present invention is simple, and efficiency of construction is high, easily controls, and preformed pile can be sent into accurately the degree of depth of specifying, and ensures that stake top mark is up to arriving design and code requirement.
In embodiment, opening locked groove 1b tilts upward greatly gradually little guiding slot port 1c by opening and forms with the horizontal locked groove 1d of recessed lock dog locating slot 1e with the guiding slot port 1c end that is connected successively, and the center, upper surface of clip 1 is provided with the convenient scale linking arm 11 docked with scale bar 2.
In embodiment, lock dog 3 is integrally weldingly fixed on the stake top of flush type construction preformed pile A, the proper location with lock dog locating slot 1e of part that this lock dog 3 extends flush type construction preformed pile A side face is matched, and the stake top of flush type construction preformed pile A extend in cylindricality card chamber 1a.
In embodiment, the diameter of scale bar 2 is identical with stake driver drilling rod, and on this scale bar 2, the precision of reference mark is millimeter.
In embodiment, the length of scale bar 2 is 1.5 meters to 2.5 meters, is preferably 2 meters.
In embodiment, flush type construction preformed pile A stake top is fixed with pile crown end plate, and lock dog 3 is weldingly fixed on pile crown end plate.
In embodiment, scale linking arm 11 links with scale bar 2 and is connected to a fixed, and the thickness of lock dog 3 is 15 millimeters to 50 millimeters, is preferably 40 millimeters.
In embodiment, the first-class radian of clip 1 is shaped with two opening locked groove 1b as shown in Figure 4, and lock dog 3 is for extending a strip in-line iron block of flush type construction preformed pile A pile body in two ends.
In embodiment, lock dog 3 can certainly be relatively short iron block, as shown in Figure 3, the first-class radian of clip 1 is shaped with two opening locked groove 1b, correspondingly lock dog 3 be two or, the first-class radian of clip 1 is shaped with three opening locked groove 1b, correspondingly lock dog 3 be three or, the first-class radian of clip 1 is shaped with four opening locked groove 1b, and correspondingly lock dog 3 is four.
A pile follower method for flush type construction preformed pile pile follower bar, the method comprises the following steps:
Step one, before carrying out planting stake, first in the end one save flush type construction preformed pile A stake top solder and opening locked groove 1b equal amount lock dog 3, the position of this lock dog 3 and size are all suitable with the opening locked groove 1b of clip 1, and the bearing capacity of lock dog 3 is greater than the weight of this flush type construction preformed pile A;
Step 2, when to plant, when flush type construction preformed pile A drops to by deadweight the position being convenient to connect clip 1, preformed pile A fixator of being constructed by flush type is first fixed, and prevents it from declining; Stake driver drilling rod is moved to scale bar 2 position simultaneously, drilling rod linking arm 4 is connected on a driver drilling rod, then move to clip 1 position, by scale linking arm 11, clip 1 is connected on scale bar 2;
Step 3, lifting stake driver drilling rod, the cylindricality card chamber 1a of clip 1 is made to aim at flush type construction preformed pile A pile body, and adjust clip 1 the guiding slot port 1c of opening locked groove 1b is just snapped in lock dog 3, then rotate clip by the direction that guiding slot port 1c is sealed, make lock dog 3 snap in the lock dog locating slot 1e of opening locked groove 1b;
The fixator of step 4, the preformed pile A that to be constructed by flush type is decontroled, and then carries out pile follower;
In step 5, pile follower process, with level gauge alignment scale bar 2, being controlled stake top mark is high by the reference mark on Real Time Observation scale bar 2, ensureing that stake top mark is up to arriving design and code requirement.
Step 6, plant after stake completes, treat that flush type construction preformed pile A stablizes, then clip 1 is transferred appropriate location, clip 1 will be reversely rotated again, and make opening locked groove 1b from after lock dog 3 produces, promote clip 1, the preformed pile A that whole pile follower bar and flush type constructed is separated, then pull down clip 1 and scale bar 2, clip 1 and scale bar 2 are placed on assigned address, complete flush type construction preformed pile A pile follower process.
Degree of depth the best of cylindricality card chamber 1a of the present invention extends in the middle part of clip, and the connection being energy detachable between clip 1 with scale linking arm 11, between scale linking arm 11 with scale bar 2, between scale bar 2 with drilling rod linking arm 4 coordinates, therefore can carry out assembly according to the requirement of piles with different footpath and pile follower, meet multiple pile follower demand.
Claims (10)
1. a flush type construction preformed pile pile follower bar, comprise the clip (1) with under shed cylindricality card chamber (1a), it is characterized in that: the construct outer peripheral face of preformed pile (A) of described cylindricality card chamber (1a) internal perisporium and flush type is suitable, and described clip (1) has at least two opening locked grooves (1b) realizing by both forward and reverse directions rotation clip (1) clamping fast or getting loose around radians such as the side faces in cylindricality card chamber (1a), the stake top of described flush type construction preformed pile (A) is fixed with to import with opening locked groove (1b) locks friction tight lock dog (3), the center, upper surface of described clip (1) is installed with the scale bar (2) with reference mark removedly, the afterbody of this scale bar (2) is equipped with the drilling rod linking arm (4) that can dock with stake driver drilling rod.
2. a kind of flush type construction preformed pile pile follower bar according to claim 1, it is characterized in that: described opening locked groove (1b) tilts upward greatly gradually little guiding slot port (1c) by opening and forms with the horizontal locked groove (1d) of recessed lock dog locating slot (1e) with guiding slot port (1c) end that is connected successively, and the center, upper surface of described clip (1) is provided with the convenient scale linking arm (11) docked with scale bar (2).
3. a kind of flush type construction preformed pile pile follower bar according to claim 2, it is characterized in that: described lock dog (3) is integrally weldingly fixed on the stake top of flush type construction preformed pile (A), the proper location with lock dog locating slot (1e) of part that this lock dog (3) extends flush type construction preformed pile (A) side face is matched, and the stake top of described flush type construction preformed pile (A) extend in cylindricality card chamber (1a).
4. a kind of flush type construction preformed pile pile follower bar according to claim 3, it is characterized in that: the diameter of described scale bar (2) is identical with stake driver drilling rod, the precision of the upper reference mark of this scale bar (2) is millimeter.
5. a kind of flush type construction preformed pile pile follower bar according to claim 4, is characterized in that: the length of described scale bar (2) is 1.5 meters to 2.5 meters, is preferably 2 meters.
6. a kind of flush type construction preformed pile pile follower bar according to claim 5, is characterized in that: described flush type construction preformed pile (A) stake top is fixed with pile crown end plate, and described lock dog (3) is weldingly fixed on pile crown end plate.
7. a kind of flush type construction preformed pile pile follower bar according to claim 6, it is characterized in that: described scale linking arm (11) links with scale bar (2) and is connected to a fixed, the thickness of described lock dog (3) is 15 millimeters to 50 millimeters, is preferably 40 millimeters.
8. a kind of flush type construction preformed pile pile follower bar according to claim 7, it is characterized in that: described clip (1) first-class radian is shaped with two opening locked grooves (1b), described lock dog (3) is for extending a strip in-line iron block of flush type construction preformed pile (A) pile body in two ends.
9. a kind of flush type construction preformed pile pile follower bar according to claim 7, it is characterized in that: described clip (1) first-class radian is shaped with two opening locked grooves (1b), correspondingly described lock dog (3) be two or, described clip (1) first-class radian is shaped with three opening locked grooves (1b), correspondingly described lock dog (3) be three or, described clip (1) first-class radian is shaped with four opening locked grooves (1b), and correspondingly described lock dog (3) is four.
10. a pile follower method for the flush type construction preformed pile pile follower bar according to the arbitrary claim of claim 1 to 9, is characterized in that: the method comprises the following steps:
Step one, before carrying out planting stake, first in the end one save flush type construction preformed pile (A) stake top solder and opening locked groove (1b) equal amount lock dog (3), the position of this lock dog (3) and size are all suitable with the opening locked groove (1b) of clip (1), and the bearing capacity of lock dog (3) is greater than the weight of this flush type construction preformed pile (A);
Step 2, when to plant, when flush type construction preformed pile (A) drops to by deadweight the position being convenient to connect clip (1), preformed pile (A) of being constructed by flush type is first fixed with fixator, prevents it from declining; Stake driver drilling rod is moved to scale bar (2) position simultaneously, drilling rod linking arm (4) is connected on a driver drilling rod, then move to clip (1) position, by scale linking arm (11), clip (1) is connected on scale bar (2);
Step 3, lifting stake driver drilling rod, the cylindricality card chamber (1a) of clip (1) is made to aim at flush type construction preformed pile (A) pile body, and adjust clip (1) guiding slot port of opening locked groove (1b) (1c) is just snapped in lock dog (3), then rotate clip by the direction that guiding slot port (1c) is sealed, make lock dog (3) snap in the lock dog locating slot (1e) of opening locked groove (1b);
The fixator of step 4, preformed pile (A) of being constructed by flush type is decontroled, and then carries out pile follower;
In step 5, pile follower process, with level gauge alignment scale bar (2), being controlled stake top mark is high by the reference mark on Real Time Observation scale bar (2), ensureing that stake top mark is up to arriving design and code requirement;
Step 6, plant after stake completes, treat that flush type construction preformed pile (A) is stablized, then clip (1) is transferred appropriate location, clip (1) will be reversely rotated again, make opening locked groove (1b) from after lock dog (3) produces, promote clip (1), preformed pile (A) of whole pile follower bar and flush type being constructed is separated, then clip (1) and scale bar (2) is pulled down, clip (1) and scale bar (2) are placed on assigned address, complete flush type construction preformed pile (A) pile follower process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839099.4A CN104532840A (en) | 2014-12-30 | 2014-12-30 | Embedded type construction precast pile following rod and pile following method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410839099.4A CN104532840A (en) | 2014-12-30 | 2014-12-30 | Embedded type construction precast pile following rod and pile following method thereof |
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| Publication Number | Publication Date |
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| CN104532840A true CN104532840A (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410839099.4A Pending CN104532840A (en) | 2014-12-30 | 2014-12-30 | Embedded type construction precast pile following rod and pile following method thereof |
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| CN (1) | CN104532840A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369806A (en) * | 2015-12-09 | 2016-03-02 | 浙江科技学院 | Multistage elastic pile transporting device for static pressure pipe pile |
| CN105625428A (en) * | 2015-12-30 | 2016-06-01 | 徐海慧 | Mechanized dam breach pile inserting and damming equipment and method thereof |
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| JP2006077388A (en) * | 2004-08-12 | 2006-03-23 | Norihiro Watanabe | Pile burying method |
| CN102808412A (en) * | 2012-08-27 | 2012-12-05 | 中淳高科桩业股份有限公司 | Embedded construction prefabricated pile following device and pile following method |
| CN203613541U (en) * | 2013-11-15 | 2014-05-28 | 中交天航港湾建设工程有限公司 | Driving device for vertical pipe sinking in shallow sea reclamation area |
| CN204023632U (en) * | 2014-08-22 | 2014-12-17 | 中国十七冶集团有限公司 | Pile penetration monitoring device in a kind of PHC pile tube pile driving process |
| CN204370420U (en) * | 2014-12-30 | 2015-06-03 | 中淳高科桩业股份有限公司 | A kind of flush type construction preformed pile pile follower bar |
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2014
- 2014-12-30 CN CN201410839099.4A patent/CN104532840A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006077388A (en) * | 2004-08-12 | 2006-03-23 | Norihiro Watanabe | Pile burying method |
| CN102808412A (en) * | 2012-08-27 | 2012-12-05 | 中淳高科桩业股份有限公司 | Embedded construction prefabricated pile following device and pile following method |
| CN203613541U (en) * | 2013-11-15 | 2014-05-28 | 中交天航港湾建设工程有限公司 | Driving device for vertical pipe sinking in shallow sea reclamation area |
| CN204023632U (en) * | 2014-08-22 | 2014-12-17 | 中国十七冶集团有限公司 | Pile penetration monitoring device in a kind of PHC pile tube pile driving process |
| CN204370420U (en) * | 2014-12-30 | 2015-06-03 | 中淳高科桩业股份有限公司 | A kind of flush type construction preformed pile pile follower bar |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369806A (en) * | 2015-12-09 | 2016-03-02 | 浙江科技学院 | Multistage elastic pile transporting device for static pressure pipe pile |
| CN105369806B (en) * | 2015-12-09 | 2017-05-17 | 浙江科技学院 | Multistage elastic pile transporting device for static pressure pipe pile |
| CN105625428A (en) * | 2015-12-30 | 2016-06-01 | 徐海慧 | Mechanized dam breach pile inserting and damming equipment and method thereof |
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Application publication date: 20150422 |
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