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公司基本資料信息
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mso-hansi-font-family:"Times New Roman"">一、概述:????
1、YZS-3 mso-hansi-font-family:"Times New Roman"">型重型液壓動(dòng)力觸探儀是我廠在ZDT- "Times New Roman"">Ⅱ型重型電動(dòng)動(dòng)力觸探儀的基礎(chǔ)上改進(jìn)的新型產(chǎn)品,它除了有電動(dòng)產(chǎn)品能解決人工操作中慢、累、用人多的缺點(diǎn)外,又解決了由于野外作業(yè)缺少電源和接電不方便的問題,在機(jī)械方面我們保證穿心錘的質(zhì)量(65.3kg mso-hansi-font-family:"Times New Roman"">)和落距(760mm "Times New Roman"">)的準(zhǔn)確性。
2、速度:18 mso-hansi-font-family:"Times New Roman"">擊/ "Times New Roman"">分+3擊。
3、總質(zhì)量:500kg mso-hansi-font-family:"Times New Roman"">(含附件)
mso-hansi-font-family:"Times New Roman"">二、全自動(dòng)液壓重型動(dòng)力觸探儀開箱試機(jī)及使用:
1、先將儀器放置地面較平處將其放穩(wěn)調(diào)平。
?2 "Times New Roman"">、發(fā)動(dòng)汽油機(jī),先讓汽油機(jī)空轉(zhuǎn)1-2 "Times New Roman"">分鐘,這時(shí)向上搬動(dòng)手動(dòng)閥門將擊錘架子升起來,升到可以將探桿接上即可,不易升的太高。(上探桿前一定要先上好安全擋桿)
3、升起后將有探頭的探桿裝在擊錘架下的套孔內(nèi),上第一根探桿時(shí)主架子底下要裝上將探桿找正居中的角鐵,對好后,先將安全擋桿取下,向下搬動(dòng)手動(dòng)閥門將擊錘架慢慢落下接好后。還要讓提擊錘架子的升降油缸繼續(xù)下降到底才可工作,再將讓探桿找正居中的角鐵去掉。
4、由于本機(jī)是以汽油機(jī)為主動(dòng)力,以液壓機(jī)為傳動(dòng)動(dòng)力,所以本機(jī)沒有計(jì)數(shù)和自動(dòng)停機(jī)功能,擊到所需錘擊數(shù)后,要人工停機(jī)
5、打下第一根探桿后,再按上面的步驟將擊錘架子升起來,上好第二根探桿,重復(fù)上面步驟工作即可。
mso-hansi-font-family:"Times New Roman"">三、類別及規(guī)格:
1、輕型:
mso-hansi-font-family:"Times New Roman"">錘重:10kg
mso-hansi-font-family:"Times New Roman"">落距:500mm
mso-hansi-font-family:"Times New Roman"">探頭:圓錐頭錐度60 "Times New Roman"">,椎體直徑40
mso-hansi-font-family:"Times New Roman"">貫入指示:Np "Times New Roman"">貫入30mm的錘擊數(shù)
mso-hansi-font-family:"Times New Roman"">觸探桿外徑:25mm
2、重型:
mso-hansi-font-family:"Times New Roman"">錘重:63.5kg
mso-hansi-font-family:"Times New Roman"">落距:760mm
mso-hansi-font-family:"Times New Roman"">探頭:圓錐頭錐度60 "Times New Roman"">,椎體直徑74
mso-hansi-font-family:"Times New Roman"">貫入指示:Np "Times New Roman"">貫入10mm的錘擊數(shù)
mso-hansi-font-family:"Times New Roman"">觸探桿外徑:42mm
3、超重型:
mso-hansi-font-family:"Times New Roman"">錘重:120kg
mso-hansi-font-family:"Times New Roman"">落距:1000mm
mso-hansi-font-family:"Times New Roman"">探頭:圓錐頭錐度60 "Times New Roman"">,椎體直徑74
mso-hansi-font-family:"Times New Roman"">貫入指示:Np "Times New Roman"">貫入10mm的錘擊數(shù)
mso-hansi-font-family:"Times New Roman"">觸探桿外徑:42mm-63mm
mso-hansi-font-family:"Times New Roman"">四、全自動(dòng)液壓重型動(dòng)力觸探儀試驗(yàn)程序:
1、貫入前, mso-hansi-font-family:"Times New Roman"">觸探架安放平穩(wěn), "Times New Roman"">保持觸探孔垂直。
2、貫入時(shí),使穿心錘自由下落距為76 cm, mso-hansi-font-family:"Times New Roman"">并及時(shí)記錄貫入深度并記錄每貫入10 cm mso-hansi-font-family:"Times New Roman"">的實(shí)測擊數(shù)N "Times New Roman"">。
3、當(dāng)觸探桿長度L>2 m時(shí)錘擊數(shù)按下式進(jìn)行校正:
N63.5=d·N mso-hansi-font-family:"Times New Roman"">(1 "Times New Roman"">)
mso-hansi-font-family:"Times New Roman"">式中:N63.5 "Times New Roman"">為重型動(dòng)力觸探儀試驗(yàn)錘擊數(shù);d "Times New Roman"">為
mso-hansi-font-family:"Times New Roman"">觸探桿長度校正系數(shù), "Times New Roman"">按表1確定。
? "Times New Roman"">對地下水位以下的中粗礫砂和圓礫、卵石錘擊數(shù)按下式進(jìn)行修正。
N63.5=1.1N′63.5+1.0 (2 mso-hansi-font-family:"Times New Roman"">)
mso-hansi-font-family:"Times New Roman"">式中:N "Times New Roman"">′63.5為觸探桿長度校正后錘擊數(shù)。
4、指標(biāo)的應(yīng)用: mso-hansi-font-family:"Times New Roman"">根據(jù)重型動(dòng)力觸探錘擊數(shù)按表2 "Times New Roman"">確定容許承載力。
mso-hansi-font-family:"Times New Roman"">五、全自動(dòng)液壓重型動(dòng)力觸探儀數(shù)據(jù)分析:
mso-hansi-font-family:"Times New Roman"">在承載板檢測地基承載力的實(shí)驗(yàn)點(diǎn)附近,我們采用重型動(dòng)力觸探儀對地基承載力進(jìn)行了檢測,通過對數(shù)據(jù)分析,得到每進(jìn)尺10 cm mso-hansi-font-family:"Times New Roman"">與錘擊數(shù)的關(guān)系圖1 "Times New Roman"">, 每進(jìn)尺10 cm mso-hansi-font-family:"Times New Roman"">與錘擊數(shù)的關(guān)系根據(jù)承載板法測試的中粗砂地基承載力, mso-hansi-font-family:"Times New Roman"">并與重型觸探儀實(shí)際測試結(jié)果進(jìn)行比較,按錘擊16 mso-hansi-font-family:"Times New Roman"">次進(jìn)尺60 cm "Times New Roman"">時(shí),地基承載力為0.3 MPa "Times New Roman"">,此時(shí)每10 cm "Times New Roman"">進(jìn)尺需錘擊4~6 "Times New Roman"">次,公式為:
[δ]= mso-hansi-font-family:"Times New Roman"">ξ×(6 "Times New Roman"">次/10 cm "Times New Roman"">) (3 mso-hansi-font-family:"Times New Roman"">)
mso-hansi-font-family:"Times New Roman"">δ= "Times New Roman"">ξ×(N次/10 cm mso-hansi-font-family:"Times New Roman"">) (4 mso-hansi-font-family:"Times New Roman"">)
mso-hansi-font-family:"Times New Roman"">式中:[ "Times New Roman"">δ]為實(shí)際地基承載力0.3 MPa;ξ為比例系數(shù), mso-hansi-font-family:"Times New Roman"">與中粗砂的含水量、細(xì)度模數(shù)等有關(guān); mso-hansi-font-family:"Times New Roman"">δ為實(shí)測地基承載力;N "Times New Roman"">為每進(jìn)尺10 cm "Times New Roman"">的錘擊數(shù)。因地基土上部擾動(dòng)破壞,地基承載力變化較大,統(tǒng)計(jì)每10 cm "Times New Roman"">進(jìn)尺深度時(shí),應(yīng)去掉前6 mso-hansi-font-family:"Times New Roman"">次錘擊數(shù),從第7 "Times New Roman"">次開始算起,累計(jì)進(jìn)尺深度不小于60 cm mso-hansi-font-family:"Times New Roman"">(包括前6 "Times New Roman"">次進(jìn)尺深度)。根據(jù)實(shí)驗(yàn)數(shù)據(jù)分析,總結(jié)重型動(dòng)力觸探試驗(yàn)錘擊數(shù)與中粗砂地基承載力對應(yīng)見表3 mso-hansi-font-family:"Times New Roman"">。