頂管(guan)施工(gong)(gong)借助于主頂油缸及管(guan)道(dao)(dao)間(jian)(jian)中繼間(jian)(jian)等(deng)的(de)(de)(de)推(tui)力(li)(li)，把工(gong)(gong)具管(guan)或掘(jue)進機(ji)從(cong)工(gong)(gong)作井(jing)內(nei)穿過土層一直推(tui)到接(jie)(jie)收井(jing)內(nei)吊(diao)起(qi)。與(yu)此同(tong)時，也就把緊隨(sui)工(gong)(gong)具管(guan)或掘(jue)進機(ji)后(hou)(hou)的(de)(de)(de)管(guan)道(dao)(dao)埋設在兩井(jing)之間(jian)(jian)，以期實現非開挖敷設地下(xia)管(guan)道(dao)(dao)的(de)(de)(de)施工(gong)(gong)方法。地下(xia)管(guan)線(xian)(xian)是(shi)城市(shi)基礎設施的(de)(de)(de)重要組成部分(fen)，電(dian)纜管(guan)、上下(xia)水管(guan)網、熱力(li)(li)(動力(li)(li))管(guan)道(dao)(dao)同(tong)地下(xia)鐵道(dao)(dao)一起(qi)，被(bei)稱為城市(shi)的(de)(de)(de)生命線(xian)(xian)，隨(sui)著(zhu)社會的(de)(de)(de)發展，地下(xia)管(guan)線(xian)(xian)的(de)(de)(de)長度持(chi)續(xu)增加，非開挖市(shi)場存(cun)在生長空(kong)間(jian)(jian)。前(qian)(qian)殼體與(yu)前(qian)(qian)接(jie)(jie)管(guan)連(lian)接(jie)(jie)，后(hou)(hou)殼體與(yu)后(hou)(hou)接(jie)(jie)管(guan)連(lian)接(jie)(jie)，前(qian)(qian)后(hou)(hou)殼體間(jian)(jian)為承插式連(lian)接(jie)(jie)，兩者間(jian)(jian)依靠橡膠(jiao)止水帶密(mi)封，防止管(guan)道(dao)(dao)外水土和漿液(ye)倒流入管(guan)道(dao)(dao)內(nei)。

我國人均(jun)管(guan)(guan)道的(de)占有(you)量遠(yuan)低于(yu)(yu)西方發達(da)國家， 利用(yong)(yong)(yong)非(fei)開挖(wa)水(shui)(shui)平定向鉆機的(de)非(fei)開挖(wa)技術(shu)之(zhi)所(suo)以受到(dao)越來越多的(de)應用(yong)(yong)(yong)和重視，既有(you)其固有(you)的(de)技術(shu)優勢(shi)，也有(you)社會發展帶(dai)來的(de)巨(ju)大渴求(qiu)。采用(yong)(yong)(yong)4臺(tai)200噸(dun)/臺(tai)千(qian)(qian)斤(jin)(jin)頂(ding)(ding)作(zuo)為(wei)主頂(ding)(ding)，頂(ding)(ding)管(guan)(guan)工(gong)程(cheng)非(fei)開挖(wa)施工(gong)，千(qian)(qian)斤(jin)(jin)頂(ding)(ding)行程(cheng)為(wei)1.4米。千(qian)(qian)斤(jin)(jin)頂(ding)(ding)動力由(you)油泵提供。千(qian)(qian)斤(jin)(jin)頂(ding)(ding)后(hou)端用(yong)(yong)(yong)道木和分(fen)(fen)壓環將(jiang)反力均(jun)勻作(zuo)用(yong)(yong)(yong)于(yu)(yu)工(gong)作(zuo)井，前(qian)端頂(ding)(ding)進分(fen)(fen)壓環，頂(ding)(ding)鐵(tie)將(jiang)頂(ding)(ding)力傳至(zhi)管(guan)(guan)節。前(qian)殼(ke)體與前(qian)接(jie)管(guan)(guan)連(lian)(lian)接(jie)，后(hou)殼(ke)體與后(hou)接(jie)管(guan)(guan)連(lian)(lian)接(jie)，前(qian)后(hou)殼(ke)體間為(wei)承(cheng)插式連(lian)(lian)接(jie)，兩(liang)者間依靠橡(xiang)膠(jiao)止(zhi)水(shui)(shui)帶(dai)密封，防止(zhi)管(guan)(guan)道外水(shui)(shui)土和漿液倒流入(ru)管(guan)(guan)道內。

無論是(shi)各行業部(bu)門(men)規劃(hua)不到位，協調不好，還(huan)是(shi)基建發展需(xu)要(yao)，新的地下設施總(zong)在(zai)不斷增加，這時要(yao)么開挖，要(yao)么非開挖，必然選擇(ze)其一。經過多年的發展，頂(ding)管(guan)(guan)技術在(zai)我國(guo)已(yi)得到大(da)量地實際工(gong)程應用，且保持著高速的增長勢頭，無論在(zai)技術上(shang)、頂(ding)管(guan)(guan)設備還(huan)是(shi)施工(gong)工(gong)藝上(shang)取得了(le)很大(da)的進步，在(zai)某些方(fang)面甚至已(yi)達到了(le)水(shui)平(ping)。前(qian)(qian)殼(ke)體(ti)與前(qian)(qian)接(jie)管(guan)(guan)連接(jie)，后(hou)殼(ke)體(ti)與后(hou)接(jie)管(guan)(guan)連接(jie)，前(qian)(qian)后(hou)殼(ke)體(ti)間(jian)(jian)為承插式連接(jie)，兩者(zhe)間(jian)(jian)依(yi)靠橡膠(jiao)止水(shui)帶密封(feng)，防止管(guan)(guan)道外水(shui)土(tu)和(he)漿液(ye)倒流入管(guan)(guan)道內。