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Impermeable technology for ultra-large-caliber concrete rainwater pipeline joint
The invention discloses an impermeable technology for an ultra-large-caliber concrete rainwater pipeline joint. The impermeable technology comprises the following steps that: after concrete pipelinesare independently hoisted section by section, putting the concrete pipelines in a groove to be assembled, laying a pipeline foundation below, putting a rubber sealing rubber gasket in a pipeline tongue-and-groove groove, adopting a chain fall pulling-into method to connect the pipelines, filling the inner and outer gaps of a pipeline joint with asbestos cement, and carrying out first impermeable processing; smearing a belt on the outer wall of the pipeline joint by cement mortar, and putting a steel wire net in the belt so as to carry out second impermeable processing; and before the pipelineis backfilled, coating the pipeline joint and a connection hole of the pipeline and an inspection well with nonwoven geotechnical cloth so as to isolate external soil from the inside of the pipeline,and carrying out third impermeable processing. The impermeable technology has a good effect and high reliability, a water seepage amount of the processed pipeline is far below a water seepage amount allowed by a specification, the impermeable technology has a low cost, is convenient to construct and has a short construction period, and the construction quality of a large-caliber rainwater pipelineis improved.
本发明公开了一种超大口径混凝土雨水管道接口防渗工艺,先将混凝土管道一节一节分别吊起后下入沟槽内组对,下方铺设管道基础,在管道企口槽内放入橡胶密封胶圈,采用倒链拉入法将管道连接,在管道接口内外缝隙中填入石棉水泥,进行第一道防渗处理;在管接口外壁用水泥砂浆抹带,内置钢丝网,进行第二道防渗处理;管道回填之前,用无纺土工布包裹管道接口及管道与检查井的连接口,隔绝外部土壤与管道内部,进行第三道防渗处理,效果良好,可靠性高,处理后的管道渗水量将远低于规范允许渗水量,成本低廉,施工方便,施工周期快,提高了大直径雨水管道的施工质量。
Impermeable technology for ultra-large-caliber concrete rainwater pipeline joint
The invention discloses an impermeable technology for an ultra-large-caliber concrete rainwater pipeline joint. The impermeable technology comprises the following steps that: after concrete pipelinesare independently hoisted section by section, putting the concrete pipelines in a groove to be assembled, laying a pipeline foundation below, putting a rubber sealing rubber gasket in a pipeline tongue-and-groove groove, adopting a chain fall pulling-into method to connect the pipelines, filling the inner and outer gaps of a pipeline joint with asbestos cement, and carrying out first impermeable processing; smearing a belt on the outer wall of the pipeline joint by cement mortar, and putting a steel wire net in the belt so as to carry out second impermeable processing; and before the pipelineis backfilled, coating the pipeline joint and a connection hole of the pipeline and an inspection well with nonwoven geotechnical cloth so as to isolate external soil from the inside of the pipeline,and carrying out third impermeable processing. The impermeable technology has a good effect and high reliability, a water seepage amount of the processed pipeline is far below a water seepage amount allowed by a specification, the impermeable technology has a low cost, is convenient to construct and has a short construction period, and the construction quality of a large-caliber rainwater pipelineis improved.
本发明公开了一种超大口径混凝土雨水管道接口防渗工艺,先将混凝土管道一节一节分别吊起后下入沟槽内组对,下方铺设管道基础,在管道企口槽内放入橡胶密封胶圈,采用倒链拉入法将管道连接,在管道接口内外缝隙中填入石棉水泥,进行第一道防渗处理;在管接口外壁用水泥砂浆抹带,内置钢丝网,进行第二道防渗处理;管道回填之前,用无纺土工布包裹管道接口及管道与检查井的连接口,隔绝外部土壤与管道内部,进行第三道防渗处理,效果良好,可靠性高,处理后的管道渗水量将远低于规范允许渗水量,成本低廉,施工方便,施工周期快,提高了大直径雨水管道的施工质量。
Impermeable technology for ultra-large-caliber concrete rainwater pipeline joint
超大口径混凝土雨水管道接口防渗工艺
DAI ZHIPEI (Autor:in) / LI KAI (Autor:in) / MU QI (Autor:in) / CAO ZHIXIANG (Autor:in) / JI JING (Autor:in)
19.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E03F
SEWERS
,
Abwasserkanäle
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|Preparation method of high-strength impermeable concrete and impermeable concrete
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|Engineering Index Backfile | 1951
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