• 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:
    A device for securing excavation pits with wall fields (1) offset in rows along the construction pit walls (14) to be secured is described. In order to create advantageous construction conditions, it is proposed that the mutually supportable wall panels (1) form a frame (2) stiffened by diagonal struts (3, 4), which has a receiving grid (7) for a water-permeable cover (8), and the wall panels (1) are held under pretension against the excavation wall (14) by means of drilling anchors (16) engaging in the intersection of the diagonal braces (3, 4).
    公开号:AT516826A4
    申请号:T50818/2015
    申请日:2015-09-28
    公开日:2016-09-15
    发明作者:
    申请人:Swietelsky Baugesellschaft M B H；
    IPC主号:
    专利说明:

    (40448) II
    The invention relates to a device for excavation pit with along the construction pit walls to be secured rowwise offset, rectangular wall panels. If excavation pits can not be excavated taking into account a natural slope angle, the excavation walls must be secured. In order to keep the associated with such a Baugrubensicherung work relatively small, it is known (DE 1 784 325 A) to make the wall protection by prefabricated wall panels that are guided between rammed into the ground profile carriers and lowered in the course of Baugrubenaushubs to the Baugrubenwand to back up. Apart from the fact that due to the wall panels made of prefabricated reinforced concrete or prestressed concrete slabs comparatively high weights must be handled, no pressure can be exerted on the to be secured excavation walls, which replaces the lost by the excavation back pressure, which increases the risk of subsidence in the excavation pit neighborhood brings.
    The invention is therefore based on the object to provide a device for Baugrubensicherung, which can not only be easily performed, but also avoids the risk of subsidence due Baugrubenausschachtung.
    Starting from a device of the type described above, the invention solves the problem by the fact that the mutually supportable wall panels form a stiffened by diagonal braces frame having a receiving grid for a water-permeable cover, and that the wall panels using in the
    Cutting region of the diagonal struts attacking drilling anchors are held under bias in abutment against the construction pit wall.
    By forming the wall panels in the form of stiffened in diagonal direction, rectangular frame with a receiving grid for a water-permeable cover initially comparatively lightweight, prefabricated Ver-bauungsmodule be obtained, which are easy to handle in conjunction with the drilling anchors to be set, because they are after Set the drilling anchor under a support to the already offset wall panels on the drilling anchors each can be pressed against the to be secured excavation wall under a corresponding bias so that prevailing before the Baugrubenausschachtung in the later excavation wall pressure conditions also after excavation by on the Wall panels on the drilling anchors applied bias voltage can be maintained at least approximately. This eliminates the conditional by the removal of the excavated material relief of the soil adjacent to the excavation wall and therefore a risk of subsidence in this area. The retaining walls can be easily erected in the course of the progress of excavation excavation, first after a excavation in a depth corresponding to the height of the wall fields a row of wall array is offset before the excavation of this section of the excavation wall, the excavation continues to the already established section of To add security wall down by another set of wall elements and repeat this process until the bottom of the excavation pit is reached. The wall panels of the security walls can be removed in a reverse order before backfilling the excavation and used to secure another excavation, the anchors usually remain in the ground.
    Since the wall panels are added in rows from top to bottom according to the progress of Baugrubenaushubs, it is advisable to provide mutually supporting the wall panels support stops, which are provided at the outgoing from a lower Rahmeneck frame legs and protrude over this frame legs, so initially the in a row nebeneinan the offset wall fields each supported on the support stops of the height-extending frame legs of the previously offset wall fields.
    The adjoining the lower frame legs wall panels another wall array row then based on the support stops of these lower frame legs, so that there is a self-securing wall due to the thus given mutual support of the wall panels in connection with the prestressed mounting of the individual wall panels via a respective drill anchor ,
    In order that a displacement of the receiving grid and the water-permeable cover of the wall panels relative to the frame can be prevented in a simple manner, the frame and the diagonal struts of the wall panels can be provided with protruding thorns for holding the receiving grid and the water-permeable covers.
    Enforcing the drilling anchors the cutting area of the diagonal braces of the wall panels in a support tube on which a chuck for the drilling anchor is supported, so simple mounting conditions for the wall panels can be ensured because the wall panels need to be plugged with the support tubes only on the protruding end portions of the drilling anchors before the wall panels are held by clamping heads under a corresponding bias in abutment against the building pit wall to be secured. As clamping heads advantageously clamping nuts can be used, which are screwed onto the threaded end portions of the drilling anchors.
    In the drawing, the subject invention is shown, for example. Show it
    1 shows a wall element of a device according to the invention for excavation pit protection in a simplified plan view,
    Fig. 2 of this wall element in a section along the line ll-ll of Fig. 1 on a larger scale and
    Fig. 3 is a secured by a device according to the invention excavation wall in a vertical section.
    As can be seen in particular from FIGS. 1 and 2, the wall panels 1 used have a rectangular frame 2, which is stiffened by diagonal braces 3 and 4. Due to the strength requirements of the frame 2 is composed of rectangular cross-section hollow sections, while the diagonal struts 3, 4 are formed by a cross-sectionally U-shaped profiles. In the crossing region of the diagonal struts 3, 4, a support tube 5 is provided which limits a passage opening of the wall panels 1 for drilling anchors. On the side of the wall panels 1 facing the excavation wall to be secured, the frame 2 and the diagonal braces 3 and 4 are provided with thorns 6 projecting against the excavation wall, which secure the position of a receiving grid 7 provided on this wall field side for a water-permeable cover 8, for example a fine-meshed grid or a tile, serve.
    At the colliding in the region of a lower frame corner 9 frame legs 10 and 11 projecting support stops 12 and 13 are preferably provided for subsequent wall panels in the form of angle profiles. Since, according to the embodiment of FIGS. 1 and 2, the support stops 13 are respectively attached to the right of the height-extending frame legs 11, the wall panels 1 are sequentially laid from left to right progressively, so that each subsequent wall panel 1 with his Frame 2 comes to lie on the support stops 13, as indicated by dash-dotted lines in Fig. 1. The subsequent downward wall array row, which can be arranged offset as shown in Figure 1 opposite the upper wall array row, but this is not mandatory, is based on the support stops 12 of the respective lower frame legs 10 from.
    To secure a excavation wall 14, the excavation pit is first excavated at a depth according to FIG. 3, which corresponds to the height of the wall panels 1. The excavation reason after this Teilaushub is indicated by dash-dotted lines in FIG. 3 and provided with the reference numeral 15. After this Teilaushub be placed in the to be secured excavation wall 14 corresponding to the given by the wall panels 1 division drilling anchor 16, then the wall panels 1 in the by the
    Support stops 13 predetermined sequence are plugged by the drilling anchors 16 pass through the support tubes 5, so that the projecting end portion of the drilling anchor 16 can be provided with corresponding clamping heads 17. Under a support on the support tubes 5, the drilling anchors 16 are biased and thereby the wall panels 1 under pressure held in abutment against the excavation wall 14 to be secured. If the excavation wall 14 secured in accordance with the partial excavation over the wall length by the juxtaposed wall panels 1, the excavation of the excavation can be continued to secure the excavation wall 14 in the excavation well by another series of wall panels 1 according to the hedging by the previous wall array row , as indicated in phantom in FIG. According to the embodiment of FIG. 3, the excavation depth corresponds to two rows of wall panels 1, so that the excavation floor 18 is reached with the second Teilaushub. For deeper excavations further Teilaushübe done with each subsequent hedging by a Wandfeldreihe.
    Before closing the excavation, usually by backfilling the space between the excavation wall 14 and the erected structure, the wall panels 1 can be removed in the reverse order of the drilling anchors 16 and used for securing further excavations. The drilling anchors 16 usually remain in the construction pit wall 14.
    权利要求:
    Claims (4)
    [1]
    1. Apparatus for securing excavation with along the building pit walls to be secured (14) in rows offset wall panels (1), characterized in that the mutually supportable wall panels (1) by a diagonal struts (3, 4) stiffened frame (2) form a receiving grid (7) for a water-permeable cover (8), and that the wall panels (1) by means of in the cutting region of the diagonal struts (3, 4) attacking drilling anchors (16) are held under bias in abutment against the construction pit wall (14).
    [2]
    2. Apparatus according to claim 1, characterized in that from a lower frame corner (9) outgoing frame legs (12, 13) of the wall panels (1) projecting support stops (12, 13) for subsequent wall panels (1).
    [3]
    3. Apparatus according to claim 1 or 2, characterized in that the frame (2) and the diagonal struts (3, 4) of the wall panels (1) with protruding thorns (6) for holding the receiving grid (7) and the water-permeable covers (8 ) are provided.
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the drilling anchors (16) pass through the intersection of the diagonal struts (3, 4) of the wall panels (1) in a support tube (5) on which a clamping head (17) for the drilling anchor (16) is supported.
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    同族专利:
    公开号 | 公开日
    AT516826B1|2016-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4718792A|1984-06-29|1988-01-12|Louis Claude C|Prefabricated retaining-wall elements for protection, consolidation and/or facing of excavations, ground anchor and assembly devices, and procedure for application of these elements and devices|
    JP2013209852A|2012-03-30|2013-10-10|Daikure Co Ltd|Pressure-receiving structure|
    CN103912000A|2014-05-08|2014-07-09|中勘冶金勘察设计研究院有限责任公司|Reusable composite-material soil nailing wall supporting face plate and construction method thereof|
    CN112982456A|2021-03-22|2021-06-18|赵加朋|Anti-landslide structure for roadbed filling and foundation pit backfilling and use method thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50818/2015A|AT516826B1|2015-09-28|2015-09-28|Device for excavation protection|ATA50818/2015A| AT516826B1|2015-09-28|2015-09-28|Device for excavation protection|
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