A high-stress composite ring body beam support structure and its construction method
A technology of supporting structure and combined ring, which is applied in basic structure engineering, excavation, earthwork drilling, etc., can solve the problems of connection failure, poor support stability of ring body beam, and small friction between supporting piles and crown beams.
Active Publication Date: 2021-08-27
广东恒普建设工程有限公司
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Problems solved by technology
However, the connection friction between the supporting pile and the crown beam is small, which is likely to cause engineering accidents such as connection failure, and it is also easy to cause the problem of poor stability of the ring body beam support
Method used
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[0032] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0033] see figure 1 As shown, a high-stress composite circle beam support structure includes steel truss 1, trapezoidal arch 5, upper beam slab 8, lower slab slab 9, member strong bolts 10, steel truss crown beam 11 and support piles 14 , the bottom of the steel truss 1 is connected to the trapezoidal arch 5, the trapezoidal arch 5 is installed on the steel truss crown beam 11, and the bottom of the steel truss crown beam 11 is installed with support piles 14.
[0034] In the embodiment of the present invention, see figure 1 with figure 2 As shown, the steel truss 1 includes a beam ring frame 15, a radiation frame 19, a purlin 20, a tie rod 21, and an inner inclined support rod 22. The ring frame 15 is composed of an inner ring 16, a middle ring 17 and an outer ring 18 located at the same center. The beam ring fra...
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The invention discloses a high-stress combined ring body beam support structure and a construction method thereof, which belongs to the technical field of roadway construction and solves the problem that the existing roadway support structure does not have high pressure bearing capacity and easily causes engineering accidents such as connection failure , the high-stress composite circle beam support structure includes a steel truss, a trapezoidal arch, an upper beam plate, a lower beam plate, component strong bolts, a steel truss crown beam and support piles, the bottom of the steel truss is connected to the trapezoidal arch, The trapezoidal arch is installed on the steel truss crown beam, and the bottom of the steel truss crown beam is installed with support piles. After the structure is completed, the steel truss and the steel truss crown beam are firmly connected under the fixing of the upper beam plate and the lower beam plate. The steel truss transmits the force to the steel truss crown beam. By using the steel truss crown beam as a part of the structural stress system, it works together under the action of the vertically supported support piles to act as the foundation pit support structure for the circle beam project construction. It can fully meet the safety requirements of ring body beam construction.
Description
technical field [0001] The invention relates to the technical field of roadway construction, in particular to a high-stress combined ring body beam support structure and a construction method thereof. Background technique [0002] In the process of tunneling in coal mines, it is inevitable to encounter an unbalanced stress field. The roadway support body is in a state of non-uniform pressure and stress, and the roadway is prone to strong asymmetric deformation. The asymmetric deformation pressure first causes local deformation and failure of the roadway, and then Other areas began to fail, and finally the support system of the entire roadway failed. Traditional support technology is difficult to meet the needs of roadway support engineering under this geological condition. [0003] In order to solve the problem of insufficient pressure-bearing capacity of coal mine roadway support, a homogeneous and isotropic support circle is constructed in the roadway support to form a hi...
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IPC IPC(8): E21D11/14E21D11/18E21D11/15E02D17/04E02D5/34
CPCE02D5/34E02D17/04E21D11/14E21D11/155E21D11/18
Inventor 叶小雳
Owner 广东恒普建设工程有限公司