Loess tunnel construction strutting arrangement
Technical Field
The utility model relates to a loess tunnel construction strutting arrangement belongs to tunnel construction technical field.
Background
Tunnels are engineering structures buried in the ground and are a form of human use of underground space. The tunnel can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel and a mine tunnel. In 1970, the international economic cooperation and development organization held a tunnel conference which integrates various factors, and the definition of the tunnel is as follows: "a cavity with a cross section area larger than 2 square meters is built under the ground by any method according to a specified shape and size in a certain application. ".
Loess is the porose yellow mealy soil that has the column joint that forms under dry climatic condition, loess collapsibility indicates that loess can produce great subsidence after soaking by water, be a loess special engineering geology characteristic, loess is under dead weight or external load, the nature of taking place suddenly sinking is destroyed rapidly to the back structure of soaking by water, consequently when excavation tunnel, meet the loess and should increase strutting arrangement, current loess tunnel construction strutting arrangement is not stable enough, can't support the inner wall in all-round support loess tunnel, loess tunnel inner wall unable bearing pressure and collapse, the problem that above-mentioned appearance is solved to a loess tunnel construction strutting arrangement of urgent need now.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a loess tunnel construction strutting arrangement to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, convenient all-round support supports stably firmly.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a supporting device for loess tunnel construction comprises a portal frame, a bottom plate, a stable supporting mechanism and an outer supporting plate, the bottom plate is arranged on the lower end surface of the portal frame, the outer support plate is arranged on the outer side of the portal frame, the stable support mechanism is arranged on the inner side of the outer support plate, the stable supporting mechanism comprises a top frame, a top rod, a jack, an inclined stay bar, a side stay bar, a stabilizer bar, a support bar, a connecting bar and a bearing plate, the bearing plate is arranged on the upper end surface of the portal frame, the upper end surface of the bearing plate is provided with a jack, the upper end surface of the jack is provided with a top frame, the upper end surface of the top frame is provided with a top rod, the left side and the right side inside the door frame are symmetrically provided with connecting rods, the stabilizing rod is installed in the middle of the connecting rod, the inclined supporting rod is installed on the outer side of the connecting rod, the side supporting rods are symmetrically installed on the left end face and the right end face of the portal frame, and the supporting rods are symmetrically installed on the upper side and the lower side of the side supporting rods.
Furthermore, a first limiting block is arranged at the joint of the connecting rod and the door frame, and a second limiting block is arranged at the joint of the connecting rod and the stabilizing rod.
Furthermore, a uniform force plate is arranged on the upper end face of the jack.
Furthermore, arc-shaped supporting blocks are arranged on the outer sides of the side supporting rods and the inclined supporting rods and are matched with the outer supporting plate.
Furthermore, the door frame, the side stay bars and the support bars form a triangular support structure.
Furthermore, the jack is provided with a plurality of groups, the specifications of the jacks are the same, the ejector rods are provided with a plurality of groups, the specifications of the ejector rods are the same, the inclined stay bars are provided with a plurality of groups, the specifications of the inclined stay bars are the same, the side stay bars are provided with a plurality of groups, and the specifications of the side stay bars are the same.
The utility model has the advantages that: the utility model discloses a loess tunnel construction strutting arrangement, because of the utility model discloses added roof-rack, ejector pin, jack, diagonal brace, side vaulting pole, stabilizer bar, bracing piece, connecting rod and bearing plate, this design has made things convenient for the all-round support in loess tunnel, has solved the problem that original loess tunnel construction strutting arrangement is not stable enough, has improved the utility model discloses a support stability.
Because of the connecting rod is provided with stopper one with the portal frame junction, the connecting rod is provided with stopper two with the stabilizer bar junction, and this design has increased the stability in use of connecting rod and stabilizer bar, installs even power board because of jack up end, and this design increases the homogeneity of atress, all installs the arc bracer because of the side stay and the diagonal brace outside, and arc bracer and outer supporting plate phase-match, this design is convenient for stabilize and support to external supporting plate, the utility model discloses rational in infrastructure, make things convenient for the all-round support, it is firm to support stably.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of a loess tunnel construction supporting device of the present invention;
fig. 2 is a schematic structural view of a stable supporting mechanism in the loess tunnel construction supporting device of the present invention;
fig. 3 is an enlarged view of a supporting device a for loess tunnel construction according to the present invention;
in the figure: 1-portal, 2-bottom plate, 3-stable supporting mechanism, 4-outer supporting plate, 31-top frame, 32-top rod, 33-jack, 34-diagonal brace, 35-side brace, 36-stabilizing bar, 37-supporting bar, 38-connecting bar, 39-bearing plate.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a loess tunnel construction strutting arrangement, includes portal 1, bottom plate 2, stabilizing support mechanism 3 and outer backup pad 4, and terminal surface under portal 1 is installed to bottom plate 2, and outer backup pad 4 is installed in the portal 1 outside, and stabilizing support mechanism 3 sets up at 4 inboards of outer backup pad.
Stable supporting mechanism 3 includes roof-rack 31, ejector pin 32, jack 33, diagonal brace 34, side stay 35, stabilizer bar 36, bracing piece 37, connecting rod 38 and bearing plate 39, bearing plate 39 is installed at portal 1 up end, bearing plate 39 up end is equipped with jack 33, roof-rack 31 is installed to jack 33 up end, roof-rack 31 up end is installed to the up end, ejector pin 32 is installed to the roof-rack 31 up end, connecting rod 38 is installed to the inside left and right sides symmetry of portal 1, stabilizer bar 36 is installed to connecting rod 38 intermediate position, diagonal brace 34 is installed in the connecting rod 38 outside, portal 1 left and right sides end symmetry installs side stay 35, support bar 37 is installed to side stay 35 upper and lower bilateral symmetry, the not stable enough problem of original loess tunnel construction strutting arrangement has been solved to this design.
A first limit block is arranged at the joint of the connecting rod 38 and the door frame 1, a second limit block is arranged at the joint of the connecting rod 38 and the stabilizing rod 36, the use stability of the connecting rod 38 and the stabilizing rod 36 is improved, a force-homogenizing plate is arranged on the upper end surface of the jack 33, the uniformity of stress is improved, arc-shaped support blocks are arranged on the outer sides of the side support rods 35 and the inclined support rods 34, the arc-shaped supporting blocks are matched with the outer supporting plate 4, so that the outer supporting plate 4 can be conveniently and stably supported, the portal 1, the side supporting rods 35 and the supporting rods 37 form a triangular supporting structure, the supporting stability is improved, a plurality of groups of jacks 33 are arranged, and the multiple sets of jacks 33 have the same specification, the ejector rods 32 have multiple sets, the multiple sets of ejector rods 32 have the same specification, the diagonal brace 34 has multiple sets, and the same of 34 specifications of multiunit diagonal braces, side vaulting pole 35 is equipped with the multiunit, and multiunit side vaulting pole 35 specifications are the same, has increased the stability that the loess tunnel supported.
As an embodiment of the present invention: the portal frame 1 is arranged on the inner side of the outer support plate 4, the side support rods 35 are respectively arranged on the left end surface and the right end surface of the portal frame 1 and are fixed through the support rods 37, the connecting rods 38 are arranged on the left side and the right side inside the portal frame 1, the stabilizing rods 36 are arranged in the middle of the connecting rods 38, the inclined support rods 34 are symmetrically arranged on the outer sides of the connecting rods 38, the bearing plate 39 is arranged on the upper end surface of the portal frame 1, the jacks 33 upwards support the top frame 31, the top frame 31 supports the outer support plate 4 through the ejector rods 32, and the ejector rods 32, the inclined support rods 34 and the side support rods 35 are connected with the inner wall of the.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.