A test device for the impact load damping effect of buried pipelines
A technology for buried pipelines and shock absorption effects, which is applied in the direction of testing the strength of materials using a single impact force, and can solve problems such as lack of
Active Publication Date: 2020-12-01
CHANGZHOU UNIV
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Problems solved by technology
At this stage, there are many unilateral research results on pipelines and collapse, but there is a lack of simulation test equipment for buried pipeline damage under collapse
Method used
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Embodiment Construction
[0019] Describe the present invention in detail below in conjunction with accompanying drawing:
[0020] In the embodiment of the present invention, an upper opening box 7 made of steel plates is placed on the base 2, a reserved hole 1 is provided on the base, two rows of pressure springs 8 are arranged at the front and rear ends of the box, and a spring The bracket 12 is used to transmit the impact load on the upper part of the box. The left end of the box is provided with three circular openings 5, and the right end is provided with a circular opening to change the angle between the axial direction of the buried pipeline and the impact load. Interlayer rubber pads 14 are placed at both ends of the circular opening, rubber gaskets 6 are set at the connection between the buried pipeline and the circular opening of the casing, and the convex steel plate 13 below the casing cover 11 is used to apply pressure to the soil in the casing. The upper part of the case cover is provided...
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The invention relates to a test device for anti-impact load-absorbing effect of a buried pipeline, in particular to a test device for simulating damage of the buried pipeline by impact of falling rocks during collapse of a mountain body. An upper opening box body formed of steel plates is placed on a base, two rows of pressure springs are arranged at the front and rear ends of the box body, the upper ends of the pressure springs are connected to a box cover through spring brackets to transmit an impact load from an acting head, the lower ends of the pressure springs are fixed on the base by ground anchor bolts, the left end of the box body has three circular openings, the right end of the box body is provided with a circular opening to simulate impact loads in different directions by changing directions of the buried pipeline, spacer rubber pads are placed at both ends of the circular openings, rubber gaskets sleeve connection positions of the pipe and the circular openings of the boxbody, the impact load acting head is arranged on the upper part of the box cover, a lower convex steel plate below the box cover is used to apply a load to soil in the box, and the box cover is connected to the base through the pressure springs. The test device can provide a test basis for the impact damage of the buried pipeline.
Description
[0001] Technical field [0002] The invention relates to a test device for transportation safety of buried pipelines in a collapsed section, in particular to a test device for simulating the anti-shock load and damping effect of buried pipelines. Background technique [0003] As the carrier of oil and gas, buried pipeline is one of the important facilities of surface engineering. It is the link connecting upstream resources and downstream users, and plays an indispensable role in production and life. Long-distance oil and gas pipelines cross a vast area and involve complex types of areas, especially in areas where the pipeline is located in harsh geological conditions and prone to geological disasters, which poses major safety hazards during the operation of the pipeline. Among several typical geological disasters, collapse is one of the forms of geological disasters that seriously threaten the safety of pipelines. The collapse is mainly caused by the ground shaking caused b...
Claims
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IPC IPC(8): G01N3/30
CPCG01N3/30
Inventor 朱庆杰胡士明尹晓赵晨李雪万永华赵炫皓王佳佳张建龙
Owner CHANGZHOU UNIV