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Earthmoving plant shall not be accepted as compaction equipm

来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/11/06 09:49:34
Earthmoving plant shall not be accepted as compaction equipment nor shall the use of a
lighter category of plant to provide any preliminary compaction to assist the use of
heavier plant be taken into account when assessing the amount of compaction required
for any layer.
For the purposes of Table 15.21 the following shall apply:
(i) The compaction plant in Table 15.21 is categorised in terms of static mass.
The mass per metre width of roll is the total mass on the roll divided by the
total roll width.Where a smooth wheeled roller has more than one axle the
category of the machine shall be determined on the basis of the axle giving
the highest value of mass per metre width.
(ii) A deadweight tamping roller is a machine with a roll or rolls from which ‘feet’
project and where the projected end area of each ‘foot’ exceeds 0.01 m2 and
the sum of the areas of the feet exceeds 15% of the area of the cylinder
swept by the ends of the feet.The requirements for tamping rollers apply to
machines that have 2 rolls in tandem.If only one tamping roll traverses each
point on the surface of the layer on any one pass of the machine,the
minimum number of passes shall be twice the number given in Table 15.21
plus any further doubling required to satisfy (i) above.
(iii) A vibratory tamping roller,which may be self-propelled or towed,is a
machine having a means of applying mechanical vibration to one or more
rolls.The roll or rolls have projecting feet where the height of each foot
exceeds 10% of the radius of the roll drum,the projected end area of each
foot exceeds 0.1% of the roll drum surface area,and the sum of the areas of
the feet exceeds 10% of the area of the cylinder swept by the ends of the
feet.The requirements for the operation of vibratory tamping rollers shall be
the same as those stated for vibratory rollers in sub-Clause (v) below except
that vibratory tamping rollers operating without vibration will be classified as
deadweight tamping rollers.
打错了不 好意思,能帮忙机译之后,
土方植物,不得被接纳为压实设备,也不得使用一个
打火机类植物提供任何初步压实,以协助使用
加重植物时应考虑到评估的金额压实要求
任何层.
为施行表15.21 ,适用以下办法:
(一)压实植物在表15.21是分类而言,静态的群众.
群众每米宽度的轧辊是总质量对轧辊除以该
总轧辊宽度.如果顺利的轮式压路机有一个以上的车轴该
类的机器应的基础上,确定车轴给予
最高价值的大规模每米宽度.
(二)载重吨夯压路机是一台机器与唱名或卷从哪个'脚'
项目的情况下,预计年底领域的每一个'脚'超过0.01平方米和
总和领域的脚超过15 %的面积气缸
席卷由两端的英尺.要求夯辊适用于
机器有2卷,串联.如果只有一个夯辊遍历每个
点上的表面层就其中任何一个合格的机器,
的最低人数,应通过人数的两倍,在表15.21
加上任何进一步增加一倍,须符合上述( i ) .
(三)夯实振动压路机,这可能是自走式或拖走,是一个
机器有一个手段,运用机械振动的一个或多个
轧辊.轧辊或辊有预测英尺的地方的高度,每个脚
超过10 %的半径轧辊鼓,预计年底领域的每一个
步行超过0.1 %的轧辊鼓表面积,和的总和领域
脚超过10 %的面积气缸席卷由两端的
脚.要求的运作,振动夯辊应
同时因为这些声明为振动压路机在小组第(五)以下的除外
这振动压路机夯实经营无振动,将被列为
载重吨夯实辊.