mso-hansi-font-family:"Times New Roman"">一、产品简介：

mso-hansi-font-family:"Times New Roman"">轻型击实仪研发的新一代试验仪器。试验的目的是用规定的击实方法( mso-hansi-font-family:"Times New Roman"">轻型击实法和重型击实法) "Times New Roman"">，测定土的含水量与质量密度的关系，从而确定该土的最优含水量与相应的最大干密度。

mso-hansi-font-family:"Times New Roman"">二、手动轻型击实仪技术参数：

mso-hansi-font-family:"Times New Roman"">轻型击实仪：

mso-hansi-font-family:"Times New Roman"">内径：100mm 

mso-hansi-font-family:"Times New Roman"">高度：127mm 

mso-hansi-font-family:"Times New Roman"">锤底直径：50mm  

mso-hansi-font-family:"Times New Roman"">锤重量：2.5kg 

mso-hansi-font-family:"Times New Roman"">落高：300mm

mso-hansi-font-family:"Times New Roman"">护环高度：50mm "Times New Roman"">（交通部标准）

mso-hansi-font-family:"Times New Roman"">国标、水利部标准价格同上

mso-hansi-font-family:"Times New Roman"">内径102

mso-hansi-font-family:"Times New Roman"">高度116mm

mso-hansi-font-family:"Times New Roman"">锤底直径51mm

mso-hansi-font-family:"Times New Roman"">落高305mm

mso-hansi-font-family:"Times New Roman"">重型击实仪：

mso-hansi-font-family:"Times New Roman"">内径：152mm 

mso-hansi-font-family:"Times New Roman"">高度：170mm 

mso-hansi-font-family:"Times New Roman"">锤底直径：50mm 

mso-hansi-font-family:"Times New Roman"">锤重量：4.5kg 

mso-hansi-font-family:"Times New Roman"">落高：450mm

mso-hansi-font-family:"Times New Roman"">护环高度：50mm 

mso-hansi-font-family:"Times New Roman"">垫块直径：151mm 

mso-hansi-font-family:"Times New Roman"">高度：50mm "Times New Roman"">（交通部标准）

mso-hansi-font-family:"Times New Roman"">三、手动轻型击实仪操作步骤：

(1)将击实仪放在坚实地面上，取制备好的试样600 mso-hansi-font-family:"Times New Roman"">～800g "Times New Roman"">倒入筒内，整平其表面，并用圆木板稍加压紧，然后按附表4.1 "Times New Roman"">规定的击实次数进行击实。击实时击锤应自由铅直落下，落高也按附表4.1 "Times New Roman"">调试正确，锤迹必须均匀分布于土面。然后安装套环，把土面刨成毛面，重复上述步骤进行第二层及第三层的击实，击实后超出击实筒的余土高度不得大于6mm mso-hansi-font-family:"Times New Roman"">。

(2)用修土刀沿套环内壁削挖后，扭动并取下套环，齐筒顶细心削平试样，拆除底板，如试样底面超出筒外亦应削平。擦净筒外壁，称质量，准确至1g mso-hansi-font-family:"Times New Roman"">。　

(3)用推土器推出击实筒内试样，从试样中心处取2 mso-hansi-font-family:"Times New Roman"">个各约15 "Times New Roman"">～20g土测定其含水量。计算至0.1% mso-hansi-font-family:"Times New Roman"">，其平行误差不得超过1% "Times New Roman"">。　　

(4)按(1) mso-hansi-font-family:"Times New Roman"">～(3) "Times New Roman"">步骤进行其它不同含水量试样的击实试验。