A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the field of pipe jacking seepage prevention, in particular to an embankment-penetrating large-diameter JPCCP pipe jacking grouting seepage prevention method which comprises the steps that a plurality of horizontal one-way grouting holes are additionally formed in through-wall water stop devices of holes of a working well and a receiving well; grouting is carried out from the jacking pipe to the working well, grouting is carried out from the jacking pipe to the working well, and grouting is carried out from the receiving well through-wall water stop device to the pipe joint; during pipe jacking construction, resistance reduction slurry is injected through the cement slurry grouting holes in the jacking pipe, the jacking resistance of the jacking pipe is relieved, and the horizontal one-way grouting holes in the working well through-wall water stop device are blocked; the horizontal one-way grouting hole is separated from the thixotropic slurry grouting pump and is connected into a cement slurry and water glass double-slurry grouting pump; and plugging objects of horizontal one-way grouting holes in the through-wall water stop devices of the working well and the receiving well are removed, the horizontal one-way grouting hole of the through-wall water stop device of the receiving well is connected into a cement paste and water glass double-liquid grouting pump, and the horizontal one-way grouting hole of the through-wall water stop device of the working well is connected into a slurry box.
本发明涉及顶管防渗领域，更具体的说是一种穿堤大口径JPCCP顶管注浆防渗方法，方法为：在工作井和接收井的洞口的穿墙止水装置上，增设多个水平单向注浆孔；注浆由顶管往工作井方向进行，工作井注浆由顶管往工作井方向进行，接收井注浆由接收井穿墙止水装置往管节方向进行；顶管施工时，通过顶管上的水泥浆注浆孔，注入减阻泥浆，缓和顶管顶进阻力，封堵工作井穿墙止水装置上的多个水平单向注浆孔；水平单向注浆孔脱离触变泥浆注浆泵，接入水泥浆水玻璃双液浆注浆泵；拆除工作井和接收井的穿墙止水装置内水平单向注浆孔的封堵物，接收井穿墙止水装置的水平单向注浆孔接入水泥浆水玻璃双液浆注浆泵，工作井穿墙止水装置的水平单向注浆孔接入泥浆箱。
The invention relates to the field of pipe jacking seepage prevention, in particular to an embankment-penetrating large-diameter JPCCP pipe jacking grouting seepage prevention method which comprises the steps that a plurality of horizontal one-way grouting holes are additionally formed in through-wall water stop devices of holes of a working well and a receiving well; grouting is carried out from the jacking pipe to the working well, grouting is carried out from the jacking pipe to the working well, and grouting is carried out from the receiving well through-wall water stop device to the pipe joint; during pipe jacking construction, resistance reduction slurry is injected through the cement slurry grouting holes in the jacking pipe, the jacking resistance of the jacking pipe is relieved, and the horizontal one-way grouting holes in the working well through-wall water stop device are blocked; the horizontal one-way grouting hole is separated from the thixotropic slurry grouting pump and is connected into a cement slurry and water glass double-slurry grouting pump; and plugging objects of horizontal one-way grouting holes in the through-wall water stop devices of the working well and the receiving well are removed, the horizontal one-way grouting hole of the through-wall water stop device of the receiving well is connected into a cement paste and water glass double-liquid grouting pump, and the horizontal one-way grouting hole of the through-wall water stop device of the working well is connected into a slurry box.
本发明涉及顶管防渗领域，更具体的说是一种穿堤大口径JPCCP顶管注浆防渗方法，方法为：在工作井和接收井的洞口的穿墙止水装置上，增设多个水平单向注浆孔；注浆由顶管往工作井方向进行，工作井注浆由顶管往工作井方向进行，接收井注浆由接收井穿墙止水装置往管节方向进行；顶管施工时，通过顶管上的水泥浆注浆孔，注入减阻泥浆，缓和顶管顶进阻力，封堵工作井穿墙止水装置上的多个水平单向注浆孔；水平单向注浆孔脱离触变泥浆注浆泵，接入水泥浆水玻璃双液浆注浆泵；拆除工作井和接收井的穿墙止水装置内水平单向注浆孔的封堵物，接收井穿墙止水装置的水平单向注浆孔接入水泥浆水玻璃双液浆注浆泵，工作井穿墙止水装置的水平单向注浆孔接入泥浆箱。
Pipe-jacking grouting anti-seepage method for embankment-penetrating large-diameter JPCCP
一种穿堤大口径JPCCP顶管注浆防渗方法
2023-11-14
Patent
Electronic Resource
Chinese
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