mso-hansi-font-family:"Times New Roman"">一、產品簡介：

mso-hansi-font-family:"Times New Roman"">輕型擊實儀研發的新一代試驗儀器。試驗的目的是用規定的擊實方法( mso-hansi-font-family:"Times New Roman"">輕型擊實法和重型擊實法) "Times New Roman"">，測定土的含水量與質量密度的關系，從而確定該土的最優含水量與相應的最大干密度。

mso-hansi-font-family:"Times New Roman"">二、手動輕型擊實儀技術參數：

mso-hansi-font-family:"Times New Roman"">輕型擊實儀：

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

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

mso-hansi-font-family:"Times New Roman"">錘底直徑：50mm??

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

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

mso-hansi-font-family:"Times New Roman"">護環高度：50mm "Times New Roman"">（交通部標準）

mso-hansi-font-family:"Times New Roman"">國標、水利部標準價格同上

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

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

mso-hansi-font-family:"Times New Roman"">錘底直徑51mm

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

mso-hansi-font-family:"Times New Roman"">重型擊實儀：

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

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

mso-hansi-font-family:"Times New Roman"">錘底直徑：50mm?

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

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

mso-hansi-font-family:"Times New Roman"">護環高度：50mm?

mso-hansi-font-family:"Times New Roman"">墊塊直徑：151mm?

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

mso-hansi-font-family:"Times New Roman"">三、手動輕型擊實儀操作步驟：

(1)將擊實儀放在堅實地面上，取制備好的試樣600 mso-hansi-font-family:"Times New Roman"">～800g "Times New Roman"">倒入筒內，整平其表面，并用圓木板稍加壓緊，然后按附表4.1 "Times New Roman"">規定的擊實次數進行擊實。擊實時擊錘應自由鉛直落下，落高也按附表4.1 "Times New Roman"">調試正確，錘跡必須均勻分布于土面。然后安裝套環，把土面刨成毛面，重復上述步驟進行第二層及第三層的擊實，擊實后超出擊實筒的余土高度不得大于6mm mso-hansi-font-family:"Times New Roman"">。

(2)用修土刀沿套環內壁削挖后，扭動并取下套環，齊筒頂細心削平試樣，拆除底板，如試樣底面超出筒外亦應削平。擦凈筒外壁，稱質量，準確至1g mso-hansi-font-family:"Times New Roman"">。　

(3)用推土器推出擊實筒內試樣，從試樣中心處取2 mso-hansi-font-family:"Times New Roman"">個各約15 "Times New Roman"">～20g土測定其含水量。計算至0.1% mso-hansi-font-family:"Times New Roman"">，其平行誤差不得超過1% "Times New Roman"">。　　

(4)按(1) mso-hansi-font-family:"Times New Roman"">～(3) "Times New Roman"">步驟進行其它不同含水量試樣的擊實試驗。