Loess tunnel construction supporting device
A technology for supporting devices and loess tunnels, which is applied in earth-moving drilling, pillars/supports, mining equipment, etc., and can solve problems such as device collapse, unstable base structure, extrusion fractures at the connection between upper beams and supporting columns, etc. The effect of reducing the overall pressure, improving the service life and increasing the force bearing area
Active Publication Date: 2018-04-24
中铁二十五局集团第四工程有限公司
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Problems solved by technology
[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a loess tunnel construction support device to solve the problem that the base structure of the existing construction support device is unstable, and the connection between the upper beam and the support column is easily crushed and fractured, resulting in the entire Problem where the device could not withstand the pressure and crash
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[0024] see Figure 1-Figure 4 , the present invention provides a loess tunnel construction support device, the structure of which includes a buried seat 1, a motor 2, a pressurized structure 3, a support column 4, an arch beam 5, a beam 6, a fixed mounting seat 7, and a pressure relief mechanism 8. The two ends of the arch beam 5 are vertically installed with support columns 4, and the end of the support column 4 away from the arch beam 5 is also equipped with a buried seat 1, and the two ends of the arch beam 5 are also carried by the cross beam 6. Mechanically connected, the top surface of the beam 6 is vertically welded with a fixed mounting seat 7, and the two ends of the fixed mounting seat 7 are provided with a pressure relief mechanism 8, and the pressure relief mechanism 8 is mechanically connected with the arch beam 5, so The joints of the support column 4, the arch beam 5, and the beam 6 are provided with a booster structure 3, the motor 2 is placed on the buried sea...
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The invention discloses a loess tunnel construction supporting device. The loess tunnel construction supporting device structurally comprises buried bases, motors, a pressurizing structure, supportingcolumns, an arch beam, a cross beam, a fixed mounting base and decompression mechanisms, wherein the supporting columns are vertically arranged at the two ends of the arch beam; the end, away from the arch beam, of each supporting column is also provided with one buried base; the two ends of the arch beam are also mechanically connected through the cross beam, the fixed mounting base is vertically welded to the top surface of the cross beam, and the decompression mechanisms are arranged at the two ends of the fixed mounting base. The device is provided with the supporting columns, the pressurizing structure and the decompression mechanisms; the supporting columns are buried deeply, so that the stress area is increased, and the stability of a base is directly improved; meanwhile, the pressure intensity of the supporting columns, the arch beam and the cross beam is increased, and the phenomena that the supporting force is weak and inward sliding happens are not likely to occur; meanwhile, the decompression mechanisms bear the load of upper-layer loess, load pressure relief is carried out according to the force balance principle, the overall pressure of the supporting columns is reduced, and the service life of the device is prolonged.
Description
technical field [0001] The invention relates to a loess tunnel construction support device, which belongs to the field of road construction construction equipment. Background technique [0002] Loess is a porous yellow silty soil with columnar joints formed under dry climate conditions. It is a non-layered loamy sediment. Its particle size is between clay and fine sand, which is light yellow or yellowish brown, generally brown Yellow or grey-yellow, relatively loose structure, many pores, particle size components are mainly silt particles, coarse particles are mainly quartz, feldspar, and calcite, dolomite, fine particles are clay minerals, and clay minerals have a great impact on loess collapsibility The collapsibility of loess refers to the large subsidence of loess after it is soaked by water. It is a special engineering geological characteristic of loess. Under its own weight or external load, the structure of loess will be rapidly destroyed after being soaked by water. ...
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IPC IPC(8): E21D15/14E21D15/50E21D15/502E21D15/55
CPCE21D15/14E21D15/50E21D15/502E21D15/55
Inventor 谢志坚司文华杨婧君
Owner 中铁二十五局集团第四工程有限公司