• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a joint construction for connecting piles (P1, P2). The joint structure (J1) comprises for a first pile (P1) a first joint member (MP1) comprising a projection (102) comprising a first locking member (104), the joint structure further comprising as a counterpart of the first joint member (MP1) a second joint member ( FP2) for a second pile (P2). The second joint member comprises a peripheral structure (SS210, SS220) which defines within it a housing (NE) intended for the projection of the first joint member. Said second joint member (FP2) comprises a second locking member (LT) which is adjacent to the peripheral portion (SS220, SS210). The second locking member (LT) is a transverse spring-locked locking tongue circumferentially relative to the housing, which is the counterpart of the first locking member (104) comprised of the projection (102) of the first joint member (MP1) to lock the first and second joint members (MP1). , FP2) at each other. The invention is such that the lock tongue periphery (LT) which is resilient in the transverse direction (NE) of the housing (FP2) is a multi-element, ie. a lock tongue periphery (LT) comprising several consecutive lock tongue elements (LT1-LT4). The suspension in the sprung lock tongue periphery (LT) for controlling the extension and contraction of the lock tongue periphery (LT) has been carried out with a separate circular spring (S) which joins the different lock tongue elements (LT1-LT4) to a periphery.
    公开号:FI20175609A1
    申请号:FI20175609
    申请日:2017-06-28
    公开日:2018-12-29
    发明作者:Timo Mikkonen
    申请人:Nc Taso Oy；
    IPC主号:
    专利说明:

    Joining structure for joining piles and piling
    Background of the Invention
    Background of the Invention
    The invention relates to joints used in piles, i.e. joints, by means of which two successive piles, in particular overlapping piles, can be joined and locked together. The invention is suitable for e.g. at the ends of concrete piles, such as reinforced concrete piles, for use at the joint between two piles, i.e. for the joint. Concrete piles have at the lower end of the upper pile and at the upper end of the lower pile the interconnected parts of such a joint structure which, during the production of the concrete pile, have been made integral parts of the concrete piles. In practice, concrete piles at different ends have different types of joints (male, female) in order to form piles of several heights, for example ten piles. Thus, when looking at a plurality of piles, the top of each pile has a part of the same type (e.g. female) of a joint structure, or a lower part of each pile, of another type (i.e. male).
    Continuous piles are needed in areas where there is a need to reach a sufficiently long penetration depth. Such targets may include, for example, obtaining foundation support for building foundations or bridge foundations from deeper soil layers with a higher carrying capacity, after having first been penetrated by clayey or otherwise poor bearing capacity with a high extension pile system.
    A conventional known jointing structure is, for example, the jointing structure disclosed in FI125276, wherein the male and female members have transverse, i.e. in the case of vertical piles, horizontally aligned holes which, after two piles being superimposed, are punched with a heavy punch by the installer. This design requires hard manual work and, in addition, precise alignment of the piles in order to align the horizontal holes of the male and female members of the joint structure for the locking pin in the various piles.
    EP1288382 discloses a more sophisticated solution in which the lower pile upper fitting part, i.e. the female part, has an inlet channel for the upper part of the lower pile male, but not completely in the radial direction around its full rotation, such as the Seer example. The securing ring is positioned in a housing extending beyond the diameter of the securing ring on the outer periphery of the inlet channel comprising the female portion so that the periphery of the securing ring can expand when the male portion of the lower pole is inserted into the female inlet. The ring of the securing ring shrinks back when the male portion has advanced so far that the annular transverse groove of the male portion is at the securing ring. In that structure, the securing ring acts as both a locking tab and a spring controlling it, such that the tongue function and the spring function are integral parts of the same integral. There are also problems with this known joint structure e.g. the tensile strength of the joint structure, the risk of rupture of the retaining ring and the stiffness associated with the structure, including between the retaining ring and the housing intended for its expansion space.
    Brief Description of the Invention
    The object of the invention is thus to develop a joint structure and a pile so that the above problems can be solved or alleviated. The invention is characterized by what is stated in the independent claims. Preferred embodiments of the invention are claimed in the dependent claims.
    The invention is based on a novel structure of the joint structure, and in particular the female part of the joint structure, especially with regard to the implementation of the tongue and the spring. The spring and the tongue are not integral to the same piece as is the case in the safety ring, but differentiated, but cooperatively, that is, the spring controls the multi-element locking ring.
    The invention has the advantage of good tensile strength, but still in that the joint structure is not adversely rigid when the parts are joined together when forming a joint. By means of the invention, the size of the tongue and the spring can be easily scaled up or down. Thanks to the multi-element split lock ring, there is no longer a risk of breakage because the expansion of the lock ring upon insertion of the male part is no longer based on deflection, as in the case of a retaining ring, but is based on controlled displacement of separate elements of the lock ring. Preferred embodiments of the invention enhance the advantages of the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS
    The invention will now be further described in connection with preferred embodiments, with reference to the accompanying drawings, in which:
    Figure 1 shows a joint structure at the junction of two piles
    Figure 2 shows a male portion of a joint structure
    Fig. 3 shows, in axial direction, a 4-sector locking ring of a female member surrounded by an annular spring, viewed in the direction of the female member towards the inlet direction of the male member;
    Figure 4 shows the two sectors of a 4-sector locking ring peripheral;
    Figure 5 shows one sector of a 4-sector latching ring
    Figure 6 illustrates a joint arrangement similar to that of Figure 1 but emphasizing an annular spring for encircling the latch ring in the joint arrangement,
    Figures 7a-7c show a chamber plate in the female portion
    Figures 8a-8c show a counter plate in the female section
    DETAILED DESCRIPTION OF THE INVENTION
    Referring first to FIG. 1, it is noted that this is a joint structure J, i.e. a joint structure, which allows the piles P1 and P2 to be joined together. The piles P1, P2 may be, for example, reinforced concrete piles.
    If Fig. 1 were viewed vertically, that is, rotated 90 degrees clockwise, the pile P1 would be the upper pile and the pile P2 would be the lower pile.
    The interface of the piles P1, P2 has a predominantly 2-part joint structure with a first part MP1 and a second part FP2. The first part MP1 may be called the male part and the second part FP2 may be called the female part.
    With reference to Figures 1-2, this is a joint structure J for joining piles. The joint structure J comprises a first joint member MP1 comprising a male protrusion 102 comprising a first locking member 104 which in one embodiment has a transverse annular groove in protrusion 102. The first joint member is integrated with the first pile end, e.g. .
    Further, the connecting structure J comprises a second connecting member FP2 for a second pile P2, i.e. in that second pile P2 at the end of the pile, as a counterpart to the first connecting member MP1. The second connecting element FP2 is integrated at the end of the second pile P2, for example in connection with concrete casting of the pile. In addition to Figure 1, the structures of the second connecting member are shown in Figures 3-6, 7a-7c, 8a-8c, more specifically later.
    The second connecting member, i.e. the female connecting member at the end of the second pile P2, comprises a circumferential structure SS210, SS220 defining a housing NE for the projection 102 of the first connecting member MP1. That second connecting member FP2, i.e. the female connecting member, comprises a second locking member LT which is in connection with the peripheral member SS210, SS220, in one embodiment within that peripheral member SS21O, SS22O.
    That second locking member LT, LT1-LT4 is a locking lug LT transverse to the housing NE which is opposed to the first locking member 104 comprising the first connecting member MP1, i.e. the male connecting member MP1, i.e. the groove in the second member 102. , FP2 is arranged to lock together.
    With particular reference to Figures 3 and 2 and 6, according to the invention, the transverse directional latching ring LT of the housing of the second connecting member FP2 is a multi-element, i.e. a latching ring LT comprising several successive latching elements LT1-LT4 In Fig. 1, the spring S is shown in a simplified manner mainly for its highest and lowest points only and does not, in contrast to Fig. 6, overlap the two (four) lugs of the locking ring. LT1, LT2.
    That is, unlike the Seeger type locking ring, the structure is such that the spring and the locking tongue are not integral to the same piece (which does not even detect the spring and the tongue separately) as is the case with the Seeger locking ring. the spring controls the multi-element latching ring LT, whose circumferential radius is arranged to change due to the multi-elementity as the projection 102 of the first coupling part MP1 protrudes into the second coupling member FP2. The spring S is an interconnecting member of a multi-element locking ring.
    In connection with the foregoing, the diameter of the first end of the projection 102 is larger than the diameter of the first locking member 104 in the projection 102, such as a transverse groove, so that until the protrusion 102 has advanced so far in the housing NE that the protrusion 102 passing through the central opening of the latching ring LT is in a position where the first latching portion 104 or annular groove included in the first latching member MP1 and the second latching portion LT or latching circumferentially to that first locking member 104, or groove. Figure 1 shows the position in which the locking is performed, that is, the locking ring ring LT has returned to its smaller circumferential dimension and is thus in the first locking part 104 as in the groove.
    In the locking, the left end face LS of the locking tongues elements LT1-LT4 is at least partially, i.e. from the peripheral side of the locking ring LT against the right end SS220E1 of the first locking member MP2, i.e.
    At locking, the right end face RS of the locking tongues LT1-LT4 is at least partially, at least on the inner circumference, facing transverse shoulder 108 of locking member 104 of groove 102 of first locking member MP1 102. . In Fig. 1, the right end face RS of the locking tongues LT1-LT4 is further at least partially, at least on the outer peripheral side, facing the bottom / end of the chamber SS210C of the plate SS210 which in Fig. 1 points to the left.
    The joint is stronger when the area of the left end face LS of the lock tongues LT1-LT4 against the counter disc SS220 and the right end surface RS of the lock tongues LT1-LT4 against the shoulder 108 adjacent the groove 104 of the projection 102 is substantially the same the total cross-sectional area of the cast reinforcements RE such as the brush steels RE.
    For example, ridge steels or similar casting reinforcements RE may be 1-4 pieces per joint structure. In turn, for example, four joint structures of Fig. 1 with their respective ridge bars can be used for the jointing of large piles.
    By changing the support area of the transverse ends RS, LS of the locking tongue elements, such as by increasing the standard S335 structural steel, the same strength can be achieved as with the higher grade ST500 type steel used in casting reinforcements RE such as brush steel. Em. in the labels, a number such as 355 denotes the yield strength, that is, in units of N / mm2. This allows for better economy, availability and weldability as standard S355 structural steel can be used. A number such as 355 denotes the yield stress, which indicates the magnitude of the tensile stress in a situation where the material undergoes a permanent deformation.
    In particular, Figure 6 shows that in one embodiment, the groove 104 is slightly wider than the width of the latching ring in the axial direction, i.e., there is a gap GA between the latching ring and the outer transverse edge of the latch 104. heavy impact of the junta.
    Referring particularly to Figures 3 and 1, in one embodiment, the spring S connecting the latching elements LT1-LT4 to the periphery is over the outer periphery of the latching elements, and in one embodiment particularly so that the latching elements include an groove GR on its outer periphery.
    With particular reference to Figure 3, in one embodiment, the latching elements LT1-LT4 are each part of a circular sector comprising transverse ends LT1E1, LT1E2, LT2E1, LT2E2 LT3E1, LT3E1, LT4E, respectively. That is, the ends LT1E2 and LT2E1, for example, meet, but are controlled by the spring S to disengage when the piles P1, P2 are connected, i.e. when the protrusion 102 of the first connecting member MP1 enters the housing NE in the second connecting member FP2. Through said transverse ends LT1E1, LT1E2, LT2E1, LT2E2, LT3E1, LT3E2, LT4E1, LT4E2, respectively, each latching element LT1-LT4 is supported on the preceding and following latching elements when the latching ring is the first latching of the spring S. in the first locking member 104, i.e. in the groove 104.
    Particularly from Fig. 3, and also partly from Figs. 4-5, it is found that the second locking part LT, i.e. the locking ring LT, comprises at least four consecutive locking tongue elements LT1-LT4. Of course, the minimum must have at least two elements where the perimeter growth / recovery is possible, but increasing the number of elements better enables the locking ring LT, LT1-LT4 to be realized in a smaller dimension and not too large for the pile concrete wall area.
    In order to achieve / improve dimensional accuracy, in one embodiment, the latch members LT1-LT2 are machined metal parts, for example, a tempering steel containing chromium-molybdenum.
    Referring to Figures 1 and 7a-7c, in one embodiment, the circumferential structure in the second joint member FP2, i.e. the female joint member, in which the locked latch ring LT, LT1-LT4 is provided, comprises a disc-like chamber plate SS210 comprising for enlargement.
    The peripheral structure in the second connecting member further comprises a disk-like counter plate SS220. The disc-shaped chamber plate SS210 is supported and secured to the disc-like counter plate by, for example, a weld seam W, which in one embodiment has a full circle rotation at the outer periphery of the connection between the chamber plate SS21O and the counter plate SS22O. In Fig. 1, the left end of the chamber plate SS21O is against the right end of the counter plate SS22O.
    In one embodiment, the diameter of the chamber in the chamber plate SS21O is at least 20% larger than the diameter of the latching ring LT in a situation where the latching ring is constrained by a spring when the latching ring is in the first locking portion 104 of the first Thus, in the chamber SS210C, there is radial movement space so that the locking ring LT defined by the spring S can be expanded when the protrusion 102 of the first pile P1 in the first connecting member MP1 is introduced into the second connecting member FP2, i.e. the female member.
    By way of example, using the dimensions of Fig. 1, it will be seen that in Fig. 1, the chamber has a dimension of 44mm and the locking ring widens 2 x 3mm, or 6mm, when protruding 102 flattens at its widest at WA at the beginning of protrusion 102. The expansion of the latching ring LT in its radial direction is 2 x 3mm because the projection 102 on each side of its circumference is about 3mm bigger than the diameter of the groove 104 defining the small diameter of the latching ring, i.e. the first latching portion 104. The clear chamber SS210C is shown in Figures 7a-7c.
    When narrow (that is, before the entry of the cantilever 102 or when the latching ring LT is already in the cavity groove 104), the diameter of the latching ring LT is 25mm in the image. Thus, at its widest diameter, the latching ring has a dimension of 25mm + 6mm, i.e. a total of 31mm, i.e. in Figure 1, the ratio of the diameter of the SS210C chamber to the expanded diameter of the latching ring LT is 44mm / 31mm, i.e. about 42% larger.
    In one embodiment, the diameter of the chamber SS210C in the chamber plate SS210 is at least 40% larger than the diameter of the latching ring LT when the latching ring is in the first locking portion 104 of the first locking member MP1, i.e. in the groove 104. in the radial direction of the chamber SS210C and the radius LT of the locking ring so that the larger ring ring could be accommodated in the SS210C but would still be able to use the same chamber plate SS210. With respect to the dimensions of Figure 1, the ratio of the diameter of the chamber SS210C 44mm to the diameter of the locking ring narrow position 25mm is exemplified by 44mm / 25mm, i.e. the chamber diameter is 76% larger.
    The dimensions above are those of Figure 1 and may not necessarily correspond to the actual dimensions.
    The chamber plate SS22O and the counter plate SS22O, as well as other parts of the connecting structures, are in one embodiment made of structural steel S355.
    An exemplary outer diameter for the chamber plate SS22O and the counter plate SS22O may be, for example, 55mm and the inner diameter, i.e., a central opening, is, for example, 34mm.
    Referring to Figure 1, in one embodiment, the second connecting member FP2, or female member, comprises an end plate EP2 for the end of another pile P2. In that second connecting member FP2, the disc-shaped counter plate SS22O comprising the peripheral structure may be welded, for example, by spot welding or otherwise secured to the end plate EP2 of that second connecting member FP2. The structure is then stable and integrates well into the pile P2. In one embodiment, that end plate EP2 in the second connecting member comprises an opening EP2H for the outer end SS22OE2 of the disk-like counter plate SS22O comprising said peripheral structure, i.e. for the left end in Figure 1. In Figure 1, the size, shape and diameter of the opening EP2H of the end plate EP2 corresponds to the size, shape and diameter of the counter plate SS22O. Figure 1 also shows casting reinforcements RE as steels such as brush steels. Cast reinforcements RE such as brush steels are welded to the outer edge of the chamber plate SS21O and the counter plate SS22O.
    It will be seen from Figure 1 that in one embodiment, the joint structure J is such that the outer end, i.e. the left end, of the second joint member FP2, i.e. the female end, is substantially flush with the outer or leftmost surface of the same second end member piles Pl.
    Referring to the structures on the P1 side of the pile, i.e. the first connecting member MP1, the first connecting member MP1 comprises an end plate EP1 for the end of the first pile P1. The projection 102 in the first connecting member is welded or otherwise secured to the end plate EP1 of that first connecting member MP1. The role of the end plates EP1, EP2 is mainly to act as an end stop for the concrete casting of the pile and to prevent the concrete part of the finished pile end from being damaged.
    In one embodiment, the end plate EP1 in the first connecting member MP1 comprises an opening EP1H for a support flange SE formed by the projection 102 of the first connecting member MP1. Thus, in one embodiment, as shown in Figure 1, in that first connecting member MP1, the support SE comprising a projection 102 is substantially flush with its end (pointing to the left end of the counter plate SS220 in the second pile P2) to the outer surface of the first connector member with, then has a flat surface against the second pile P1, i.e. the end plate EP2 and the counter plate SS22O.
    Referring to FIG. outer (pointing to the right) surface and also against the support SE of the projection 102 of the first connecting member MP1 (pointing to the right).
    The above embodiments improve the strength of the structure.
    By positioning / centering the second connecting member of the connecting structure J during the manufacturing of the pile P2 in the transverse direction at the correct position in the pile P2, for example, a centering plug can be used which is pressed into place in the female part FP2. The centering plug is held in place until starting at the piling site, the protrusion 102 of pile P1 to bring into the housing NE, i.e. when a joint or extension is made.
    The invention also relates to a pile having, as shown, a first connecting member MP1 and a second connecting member FP2 at different ends of the pile, but of course they are not connected to each other but to their counterpart on the previous and / or subsequent pile. Thus, it is an extending pile comprising at one end of the pile a second connecting member FP1, i.e. a multi-element latching ring LT, LT1-LT4 according to the female part, and a spring S controlling it at the first end of the pile.
    It will be obvious to a person skilled in the art that as technology advances, the basic idea of the invention can be implemented in many different ways. The invention and its embodiments are thus not limited to the examples described above, but may vary within the scope of the claims.
    权利要求:
    Claims (18)
    [1]
    A joint structure for joining piles (P1, P2) comprising a first joint member (MP1) for a first pile (P1), comprising a projection (102) comprising a first locking member (104) in addition to the first joint member (MP1) a second connecting member (FP2) for a second pile (P2), the second connecting member comprising a circumferential structure (SS210, SS220) defining a housing (NE) for the projection of the first connecting member, and said second connecting member (FP2) comprising a second locking member (LT) is in connection with a circumferential portion (SS220, SS210), the second locking portion (LT) being a transverse spring-locked latching ring which is opposed to a first locking portion (104) of a first locking member (104) comprising a projection (102) of the first connecting member (MP1). ) for locking together, characterized in that the second joint the transverse direction of the housing (NE) of the housing (NE) of the lumen (FP2) is a multi-element, i.e., a plurality of latches (LT) comprising a plurality of consecutive latching elements (LT1-LT4) in the forward direction; implemented by a separate annular spring (S) connecting the various locking tab elements to a ring.
    [2]
    Connecting structure according to Claim 1, characterized in that the spring (S) connecting the lock tongue elements (LT1-LT4) to the periphery is on the outer circumference of the lock tongue elements (LT1-LT4).
    [3]
    Connecting structure according to Claim 2, characterized in that the locking tongue elements (LT1-LT4) have a groove (GR) on their outer circumference for the annular spring (S).
    [4]
    Connecting structure according to one of the preceding claims 1 to 3, characterized in that the locking latch elements (LT1-LT4) are each formed by elements forming a part of a circular sector, from which ends each latching element is supported on the preceding and subsequent locking lugs. a first locking member in a first locking portion (104) of the projection.
    [5]
    Connecting structure according to any one of claims 1 to 4, characterized in that the latching ring (LT) comprises at least four successive latching elements (LT1-LT4).
    [6]
    Joining structure according to one of the preceding claims 1 to 5, characterized in that the circumferential structure in the second joining member (FP2) with which the spring-loaded locking ring (LT) is, comprises a disk-like chamber plate (SS21O) comprising said spring-loaded locking ring (SS210C). LT) and its expansion.
    [7]
    Joining structure according to Claim 6, characterized in that the diameter of the chamber (SS210C) in the chamber plate (SS21O) is at least 20% larger than the diameter of the locking ring when the locking ring is constricted by a spring (S) in the first locking portion of the first locking member. (in that career).
    [8]
    Joining structure according to Claim 6 or 7, characterized in that the diameter of the chamber (SS210C) in the chamber plate (SS210) is at least 40% larger than the diameter of the locking ring (LT) when the locking ring is reduced by a spring (S). MP1) in the first locking portion (104) of the projection (102).
    [9]
    Joining structure according to claim 1 or 6, characterized in that the circumferential structure in the second joining member comprises a disk-like counter plate (SS220).
    [10]
    Joining structure according to claims 6 and 9, characterized in that the disk-like chamber plate (SS210) is supported and secured to the disk-like counter plate (SS220).
    [11]
    The joint structure according to claim 9 or 10, characterized in that the second joint member (FP2) comprises an end plate (EP2) for the end of the second pile, and in that second joint member (FP2) a disc-like counter plate (SS220) comprising a circumferential structure is welded or otherwise secured thereto. (FP2) to the end plate (EP2).
    [12]
    Connecting structure according to Claim 11, characterized in that the end plate (EP2) in the second connecting element (FP2) comprises an opening (EP2H) for the outer end (SS220E2) of a disc-like counter plate (SS220) comprising said circumferential structure.
    [13]
    Connecting structure according to Claim 12, characterized in that in the second connecting element (MP1) the outer end (SS220E2) of the disc-like counter plate (SS220) is substantially flush with the outer surface of the end plate EP2) of the second connecting element.
    [14]
    Joining structure according to claim 9 or 10, characterized in that the first joining member (MP1) comprises an end plate EP1) for the ends of the first pile, and the projection (102) in the first joining member (MP1) is welded or otherwise secured to that end joining member (MP1). (EP1).
    [15]
    Connecting structure according to claim 14, characterized in that the end plate (EP1) in the first connecting element (MP1) comprises an opening (EP1H) for a support flange (SE) comprising a projection (102) of the first connecting element (MP1).
    [16]
    Joining structure according to claim 15, characterized in that in the first joining member (MP1) the support flange (SE) comprising the projection (102) is substantially flush with the outer surface (EP1) of the end plate (EP1) of the first joining member (MP1).
    [17]
    Connecting structure according to one of the preceding claims 15 to 16, characterized in that the end plate (E1) of the first connecting element (MP1) and the end plate (EP2) of the second connecting element (FP2) are disposed in a disc-like counter plate (SS220) the outer end (SS220E2) being arranged to rest against both the outer surface of the end plate (EP1) of the first connecting member (MP1) and also against the support flange (SE) of the projection (102) of the first connecting member (MP1).
    [18]
    Extensible pile, characterized in that the pile comprises, at one end of the pile, a second joint structure (FP2) according to one of the preceding claims 1 to 17 and a first joint structure (MP1) at the first end of the pile.
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    同族专利:
    公开号 | 公开日
    FI127936B|2019-05-31|
    FI20175609A|2018-12-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2019-05-31| FG| Patent granted|Ref document number: 127936 Country of ref document: FI Kind code of ref document: B |
    2022-01-31| MM| Patent lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    FI20175609A|FI127936B|2017-06-28|2017-06-28|Joint structure for joining piles, and pile|FI20175609A| FI127936B|2017-06-28|2017-06-28|Joint structure for joining piles, and pile|
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