色综合久久88色综合天天_韩日美无码精品无码_插一插射一射视频_国产情侣久久久久aⅴ免费

遂寧鋼波紋管涵管節拼裝(zhuang)之正確放樣(yang)管節軸線位置

　鋼(gang)(gang)波紋涵管節拼(pin)裝(zhuang)筋砼(tong)(tong)(tong)(tong)圓管涵基(ji)(ji)礎(chu)：鋼(gang)(gang)筋砼(tong)(tong)(tong)(tong)圓管涵的基(ji)(ji)礎(chu)材料一(yi)般有砂礫墊層(ceng)、石灰墊層(ceng)或(huo)砼(tong)(tong)(tong)(tong)基(ji)(ji)座。因鋼(gang)(gang)筋砼(tong)(tong)(tong)(tong)圓管涵對基(ji)(ji)礎(chu)承載力要(yao)(yao)求較(jiao)高，所以我國公路上(shang)多數采(cai)用(yong)砼(tong)(tong)(tong)(tong)基(ji)(ji)座。采(cai)用(yong)砼(tong)(tong)(tong)(tong)基(ji)(ji)座施工時要(yao)(yao)留(liu)意基(ji)(ji)座尺寸及(ji)沉降縫(feng)應(ying)符(fu)合(he)設計要(yao)(yao)求，沉降縫(feng)位(wei)置(zhi)應(ying)與管節的接(jie)縫(feng)位(wei)置(zhi)相一(yi)......更多

2019-05-09

遂寧鋼波紋管的防(fang)腐(fu)處(chu)理方法有哪些？

　管(guan)(guan)(guan)壁(bi)及配套附件均(jun)經(jing)由熱浸鍍鋅處理(li)，其鍍鋅層的(de)平均(jun) 厚(hou)度大于(yu)84um。鋼波紋(wen)管(guan)(guan)(guan)運至(zhi)施工現(xian)場(chang)后(hou)，工地(di)現(xian)場(chang)涂刷兩(liang)頭瀝青(qing)。密(mi)封材料選用耐久(jiu)功能較好的(de)橡膠密(mi)封圈或方形石棉盤 根密(mi)封條。鋼波紋(wen)管(guan)(guan)(guan)的(de)防腐處理(li)方法有哪些？全(quan)體(ti)管(guan)(guan)(guan)銜接法蘭選用角鋼、鋼板制造，波......更多

2019-05-07

遂寧鋼波(bo)紋管(guan)涵可(ke)以采(cai)取原裝的圓面直接進行安(an)裝，減少了(le)制作與施工的難題性

　不管是(shi)選擇(ze)什么樣的(de)(de)(de)坡口,鋼波紋管涵道的(de)(de)(de)施(shi)工(gong)(gong)仍是(shi)主要應(ying)該尊重圖紙，圖紙是(shi)施(shi)工(gong)(gong)中的(de)(de)(de)至為重要的(de)(de)(de)一環。我們不僅要從中讀出(chu)(chu)各種(zhong)細節的(de)(de)(de)尺寸(cun)和比例，還要由此(ci)推算施(shi)工(gong)(gong)地區的(de)(de)(de)實際情況，做出(chu)(chu)相(xiang)應(ying)的(de)(de)(de)對策，這樣才(cai)能保證(zheng)施(shi)工(gong)(gong)的(de)(de)(de)進行(xing)成(cheng)功(gong)。鋼波紋管涵可以采(cai)取原(yuan)裝的(de)(de)(de)圓(yuan)面直......更多

2019-05-07

遂寧鋼波紋管(guan)涵(han)的波紋結(jie)構可使涵(han)洞路面受力公(gong)道

　鋼(gang)波(bo)(bo)紋(wen)管(guan)涵(han)也叫波(bo)(bo)紋(wen)管(guan)涵(han)，是(shi)指鋪埋在公路(lu)(lu)、鐵(tie)路(lu)(lu)路(lu)(lu)下(xia)的(de)(de)涵(han)洞用(yong)的(de)(de)螺(luo)紋(wen)波(bo)(bo)紋(wen)管(guan)，它是(shi)由波(bo)(bo)形(xing)鋼(gang)板卷制(zhi)成(cheng)或用(yong)波(bo)(bo)形(xing)鋼(gang)片組拼成(cheng)的(de)(de)圓(yuan)形(xing)鋼(gang)結構管(guan)。應用(yong)于公路(lu)(lu)，鐵(tie)路(lu)(lu)，小橋，通道(dao)，擋(dang)土墻以及各(ge)種(zhong)礦場(chang)，巷道(dao)擋(dang)墻支護(hu)等工程中的(de)(de)涵(han)洞（管(guan)）。鋼(gang)波(bo)(bo)紋(wen)管(guan)涵(han)的(de)(de)波(bo)(bo)紋(wen)結構可使涵(han)洞路(lu)(lu)面......更多

2019-05-06

遂寧鋼波(bo)紋(wen)涵管安裝之前需要做好哪些防腐(fu)措施？

　施(shi)工放樣鋼波(bo)紋涵管(guan)在(zai)運輸、裝(zhuang)卸(xie)過程(cheng)中(zhong)，都要格(ge)外小心。不能(neng)滾動或磕碰硬物(wu)，防止波(bo)紋管(guan)壁變形(xing)或損傷(shang)鍍鋅層。在(zai)施(shi)工前看具體現(xian)場(chang)情況(kuang)，修筑相應(ying)長度的施(shi)工便道(dao)，合理(li)安排組織過往車輛，以保證施(shi)工能(neng)安全進行。鋼波(bo)紋涵管(guan)安裝(zhuang)之前需要做好哪些防腐措施(shi)？同時安......更(geng)多

2019-05-06

遂(sui)寧為什么說鋼波紋涵管(guan)的施工(gong)不受季節(jie)限制

　兩(liang)(liang)側及頂(ding)部回(hui)填(tian)材料要(yao)求 填(tian)方(fang)路基(ji)段，鋼波(bo)紋(wen)涵(han)管構(gou)造(zao)(zao)物兩(liang)(liang)側填(tian)筑(zhu)砂礫，填(tian)筑(zhu)范圍(wei)為不(bu)小于(yu)構(gou)造(zao)(zao)物孔徑的(de)0.5倍且(qie)不(bu)小于(yu)0.5米，頂(ding)部填(tian)筑(zhu)范圍(wei)為不(bu)小于(yu)0.5米，回(hui)填(tian)材料要(yao)求同基(ji)礎材料要(yao)求。頂(ding)部及側面填(tian)筑(zhu)范圍(wei)以外可采(cai)用(yong)路基(ji)填(tian)筑(zhu)材料。挖方(fang)路基(ji)段，構(gou)造(zao)(zao)物兩(liang)(liang)......更多

2019-04-29

遂寧鋼(gang)波紋管施(shi)工(gong)時的輔助工(gong)具不能少

　鑲石棉(mian)墊：由(you)(you)于在(zai)鋼波紋管場地勢等端由(you)(you)，有時(shi)候相鄰兩(liang)法蘭(lan)之(zhi)間(jian)(jian)間(jian)(jian)距(ju)較小，這時(shi)用(yong)手錘、鑿(zao)子把(ba)兩(liang)法蘭(lan)之(zhi)間(jian)(jian)鑿(zao)開大約1cm的縫子，用(yong)改錐把(ba)石棉(mian)墊鑲在(zai)兩(liang)法蘭(lan)之(zhi)間(jian)(jian)，有時(shi)候管子頂部兩(liang)法蘭(lan)間(jian)(jian)距(ju)較大，石棉(mian)墊嵌入艱(jian)難，用(yong)綁(bang)絲把(ba)石棉(mian)墊綁(bang)在(zai)螺(luo)釘上固定，而后工人著手對(dui)稱......更多

2019-04-29

遂寧鋼波(bo)紋管涵洞有哪些(xie)施工要求？

　鋼波紋管涵洞的施(shi)工(gong)(gong)(gong)主要(yao)(yao)有以(yi)下特點：首先，其施(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)藝(yi)流程較為(wei)特殊，在施(shi)工(gong)(gong)(gong)前(qian)要(yao)(yao)進(jin)行以(yi)下工(gong)(gong)(gong)作(zuo)：施(shi)工(gong)(gong)(gong)前(qian)預備、施(shi)工(gong)(gong)(gong)放(fang)樣(yang)、設置(zhi)圍堰(yan)、排水清(qing)淤(yu)以(yi)及平整場地等(deng)。在施(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)作(zuo)中要(yao)(yao)對(dui)其壓實度、含(han)水量進(jin)行檢測(ce)，接著對(dui)水準進(jin)行丈量，基(ji)于(yu)此，對(dui)施(shi)工(gong)(gong)(gong)基(ji)礎進(jin)行分層回填，檢......更多

2019-04-27

遂寧(ning)為什么說浩威鋼波紋管優勢(shi)顯而易(yi)見？

　但是在實(shi)際的(de)(de)施(shi)工(gong)(gong)過程(cheng)中(zhong)，應主(zhu)要按照(zhao)鋼(gang)波(bo)紋(wen)管(guan)涵(han)洞的(de)(de)使用功(gong)能(neng)以及(ji)工(gong)(gong)程(cheng)進(jin)度要求，并(bing)在充(chong)分(fen)結合施(shi)工(gong)(gong)現(xian)場前(qian)提的(de)(de)基(ji)礎上(shang)，進(jin)行公道的(de)(de)涵(han)洞材(cai)(cai)料(liao)選擇。以往受到(dao)了(le)較(jiao)多的(de)(de)施(shi)工(gong)(gong)技術(shu)水平限制(zhi)以及(ji)材(cai)(cai)料(liao)機(ji)能(neng)限制(zhi)，較(jiao)多的(de)(de)采用的(de)(de)石涵(han)作為主(zhu)要的(de)(de)涵(han)洞施(shi)工(gong)(gong)材(cai)(cai)料(liao)。但是跟著當前(qian)出(chu)產力......更多

2019-04-27

遂寧(ning)公路鋼波(bo)紋(wen)涵管的(de)耐磨性測試方法分析

　鋼(gang)波(bo)紋涵管尺寸準(zhun)確，表面整(zheng)潔無(wu)創(chuang)傷，其(qi)材(cai)質(zhi)為奧氏體型不銹鋼(gang)，產品(pin)集使用(yong)壽命長、結構緊湊、質(zhi)量可靠(kao)、互換性(xing)好(hao)、無(wu)泄漏、耐(nai)腐(fu)蝕、便于安裝等多(duo)種優(you)點(dian)于一身，現已用(yong)于航天、發(fa)電、石油化工(gong)、鋼(gang)鐵(tie)、水泥、建筑等行業的(de)各類管道和(he)設備上。公路鋼(gang)波(bo)紋涵管的(de)耐(nai)......更多(duo)

2019-04-27