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WTZF-1振动台法实验装置

WTZF-1振动台法实验装置,公路土工试验仪器

  • 型号:WTZF-1

  • 产品参数
  • 型号:WTZF-1

 

 

振动台法实验装置是专业检测仪器,按照公路土工试验规程标准研制,振动台法试验装置用于测定无粘性自由排水粗料土、巨料土、(包括堆石料)的大干密度,本产品的大密度,本产品具有结构紧凑,振动台法试验装置使用方便等优点,广泛用于施工现场实验室及科研单位。

The vibrating table method experimental device is a professional testing instrument developed according to the highway geotechnical test standard. The vibrating table test device is used to measure the dry density of non-adhesive free drainage coarse soil, giant soil, and (including rockfill). The large density, this product has the advantages of compact structure, convenient use of the vibration table test device, and is widely used in construction field laboratories and scientific research units.

 

振动台法实验装置技术参数:

采用变频器,数字控制

振动台面尺寸:600x600mm(公路标准)   762×762mm(铁路标准)

频率振动:0---60HZ可调

双振幅:0---2mm可调

外形尺寸:470X280X880mm

重量:100kg

Shaking table method experimental device technical parameters:
★Use inverter, digital control
★ Vibration table size: 600x600mm (road standard) 762 × 762mm (railway standard)
★ Frequency vibration: 0---60HZ adjustable
★Double amplitude: 0---2mm adjustable
★Dimensions: 470X280X880mm
★ Weight: 100kg

 

振动台法实验装置试验方法(干土法)

充分搅拌烘干试样,即使其颗粒分离程度尽可能小;然后大致分成三份。测定并记录空试筒质量。

用小铲或漏斗将任一份试样徐徐装入试筒,并注意使颗粒分离程度小(装填宜使振毕密实后的试样等于或略低于筒高的1/3)抹平试样表面。然后可用橡皮锤或类似物敲击几次试筒壁,使试料下沉。

放置合适的加重底板于试料表面,轻轻转动几下,使加重底板与试样表面密合一致。卸下加重底板把手。

将试筒固定于振动台面上,装上套筒,并与试筒紧密固定,将合适的加重块置于加重底板上,其上部尽量不与套筒内壁接触。

设定振动台法试验装置在振动频率50Hz下的垂直振动双振幅为0.5mm;或在振动频率60Hz下的垂直双振幅为0.35mm。

振动试筒及试样等,在50Hz下振动10min;在60Hz下振动8min。振毕卸去加重块及加重底板。

按本规程2-5步骤进行第二层、第三层试料振动压实。但第三层振毕加重底板不再立即卸去。

卸去套筒,然后检查加重底板是否与试样表面密合一致,即按压加重底板边缘,看其是否翘起,若翘起则宜在试验报告中注明。

将百分表架支杆插入每个试筒导向瓦套中;刷净试筒顶沿面上及加重底板上位于试筒导向瓦两侧测量位置所积落的细粒土,并尽量避免将这些细粒土刷进试筒内,然后分别测读并记录试筒导向瓦每侧试筒顶沿面(中心线处)各三个百分表读数,共12个读数(其平均值即为终了百分表读数Rf)。

卸去加重底板,并从振动台法试验装置面上卸下试筒。在此过程中,尽可能避免加重底板上及试筒沿面上落积的细粒土进入试筒里。如这些细粒土质量超过试样总质量的0.2%,应测定其质量并注明试验报告中。

在合适的台称上测定并记录试筒及试样总质量,扣除空试筒质量即为试样质量,或仔细地将试筒里试样全部倒入已知质量的盘中称量。计算大干密度dmax。

重复1-10步骤,直至获得一致的大干密度值(好在2%内)。如果发现产生过分的颗粒破碎或者是有棱角的石渣、堆石料或风化弱岩石料,则宜尽量制备足够数量代表性试样,以避免单个试样重复使用。;湿土法,结果整理、压实指标计算请参照相关规范。

Shaking table method experimental device test method (dry soil method)
★ Stir the sample thoroughly, even if the particle separation is as small as possible; then roughly divide it into three parts. Determine and record the mass of the empty test tube.
★ Use a spatula or funnel to slowly put any sample into the test tube, and pay attention to make the particle separation degree small (filling should be equal to or slightly lower than 1/3 of the height of the tube) The surface of the sample. Then, the test tube wall can be tapped several times with a rubber hammer or the like to sink the sample.
★ Place a suitable weighted base plate on the surface of the sample and gently turn it a few times to make the weighted base plate conform to the surface of the sample. Remove the weighted base handle.
★ Fix the test tube on the vibration table, install the sleeve, and fix it tightly with the test tube. Place the appropriate weight on the weighted base plate, and the upper part should not touch the inner wall of the sleeve as much as possible.

★ Set the vertical vibration double amplitude of the vibrating table test device at a vibration frequency of 50 Hz to 0.5 mm; or the vertical double amplitude at a vibration frequency of 60 Hz to be 0.35 mm.
The vibration test tube and the sample were vibrated at 50 Hz for 10 min; at 60 Hz for 8 min. After the vibration is removed, the weighting block is removed and the bottom plate is added.
★ Perform vibratory compaction of the second and third layers of samples according to steps 2-5 of this procedure. However, the third layer vibrating the base plate is no longer removed immediately.
★ Remove the sleeve and check whether the weighted bottom plate is in close contact with the surface of the sample. Press the edge of the bottom plate to see if it is lifted. If it is lifted, it should be noted in the test report.
★ Insert the dial indicator rod into each test tube guide sleeve; brush the fine-grained soil accumulated on the top surface of the test tube and on the weighted bottom plate at the measurement position on both sides of the test tube guide tile, and try to avoid These fine-grained soils are brushed into the test cylinders, and then each of the three dialect readings on the top surface of the test-tube (on the centerline) of each side of the test-tube guide is read and recorded, for a total of 12 readings (the average is the end) Dial indicator reading Rf).

★ Remove the weighted base plate and remove the test tube from the surface of the vibrating table test device. In this process, it is avoided as much as possible to increase the fine-grained soil deposited on the bottom plate and along the test tube into the test tube. If the quality of these fine-grained soil exceeds 0.2% of the total mass of the sample, the quality should be determined and indicated in the test report.
★ Determine and record the total mass of the test tube and the sample on a suitable table scale. Deduct the mass of the empty test tube to determine the mass of the sample, or carefully pour all the samples in the test tube into a known quality plate. Calculate the large dry density dmax.
★ Repeat steps 1-10 until a consistent large dry density value (better within 2%) is obtained. If excessive particle breakage or angular gravel, rockfill or weathered weak rock material is found, it is advisable to prepare a sufficient number of representative samples to avoid repeated use of the individual samples. Wet soil method, the results of finishing, compaction index calculation, please refer to the relevant specifications.

 

振动台法实验装置其它配套工具(由用户自配)

百分表及支架:表分表量程至少50mm以上,分度值0.025mm

台称:量程50Kg,感量6g

起吊机:起吊重量至少180Kg

标准筛:60mm; 40mm; 20mm;10mm; 5mm; 0.074mm

其它工具:加厚底板提手、烘箱、金属盘、小铲、大勺及漏斗、橡皮锤、秒表、直钢尺、试筒布套等。

Vibration table method experimental device other supporting tools (self-matched by the user)
★ Dial indicator and bracket: the meter scale is at least 50mm, and the index value is 0.025mm.
★ Taiwan scale: measuring range 50Kg, feeling 6g
★ Lifting machine: lifting weight is at least 180Kg
★ Standard sieve: 60mm; 40mm; 20mm; 10mm; 5mm; 0.074mm
★ Other tools: thick bottom handle, oven, metal plate, spatula, large spoon and funnel, rubber hammer, stopwatch, straight steel ruler, test cloth cover, etc.

 

振动台法实验装置试验完毕,请将试筒及振动台法试验装置表面清理干净、作防锈处理后,罩上防尘专罩。

After the test of the vibrating table method experimental device is completed, please clean the surface of the test tube and the vibrating table test device, and rust-proof treatment, and then cover the dust-proof cover.

 


WTZF-1振动台法实验装置

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