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Plugging structure and plugging method for dewatering well
A dewatering well plugging structure comprises a dewatering well pipe, a concrete cushion layer, a coiled material waterproof layer, a concrete protection layer and a bottom plate are sequentially arranged on the outer side of the dewatering well pipe from bottom to top, a sealing steel plate with a notch is installed on the inner wall of the dewatering well pipe, a three-way pipe is further installed in the dewatering well pipe, and the three-way pipe comprises a pressure relief pipe and a grouting branch pipe. The upper end of the pressure relief pipe extends out of the dewatering well pipe, the middle of the pressure relief pipe penetrates through the sealing steel plate and is fixedly connected with the sealing steel plate, and the grouting branch pipe is horizontally arranged on the outer wall of the upper end of the pressure relief pipe. In the concrete forming process, pressure water in a well can be discharged through the pressure relief pipe, and the problem that underground water breaks down filling concrete to cause well shut-in failure is solved. After the concrete is formed, under the condition that the space in the height direction is limited, the lateral grouting branch pipe can be connected with an external grouting pipe, micro-expansion concrete is injected into the pressure relief pipe to fill the pressure relief pipe, and the flexibility of plugging construction is improved.
一种降水井封堵结构，包括降水井管，降水井管外侧从下到上依次设置有混凝土垫层、卷材防水层、混凝土保护层和底板，降水井管内壁安装有开设缺口的封口钢板，降水井管内还安装有三通管，三通管包括泄压管和注浆支管，泄压管上端伸出降水井管，泄压管中部贯穿封口钢板并与之固定连接，注浆支管水平设置于泄压管上端外壁上，本发明通过抽水管穿过降水井管，便于将降水井管内的水抽干；在混凝土成型过程中，井内压力水可通过泄压管排出，避免地下水击穿填充混凝土导致封井失效的问题；混凝土成型后，在高度方向空间有限情况，可通过侧向的注浆支管连接外部注浆管，向泄压管内注入微膨胀混凝土来填充泄压管，提高了封堵施工的灵活性。
Plugging structure and plugging method for dewatering well
A dewatering well plugging structure comprises a dewatering well pipe, a concrete cushion layer, a coiled material waterproof layer, a concrete protection layer and a bottom plate are sequentially arranged on the outer side of the dewatering well pipe from bottom to top, a sealing steel plate with a notch is installed on the inner wall of the dewatering well pipe, a three-way pipe is further installed in the dewatering well pipe, and the three-way pipe comprises a pressure relief pipe and a grouting branch pipe. The upper end of the pressure relief pipe extends out of the dewatering well pipe, the middle of the pressure relief pipe penetrates through the sealing steel plate and is fixedly connected with the sealing steel plate, and the grouting branch pipe is horizontally arranged on the outer wall of the upper end of the pressure relief pipe. In the concrete forming process, pressure water in a well can be discharged through the pressure relief pipe, and the problem that underground water breaks down filling concrete to cause well shut-in failure is solved. After the concrete is formed, under the condition that the space in the height direction is limited, the lateral grouting branch pipe can be connected with an external grouting pipe, micro-expansion concrete is injected into the pressure relief pipe to fill the pressure relief pipe, and the flexibility of plugging construction is improved.
一种降水井封堵结构，包括降水井管，降水井管外侧从下到上依次设置有混凝土垫层、卷材防水层、混凝土保护层和底板，降水井管内壁安装有开设缺口的封口钢板，降水井管内还安装有三通管，三通管包括泄压管和注浆支管，泄压管上端伸出降水井管，泄压管中部贯穿封口钢板并与之固定连接，注浆支管水平设置于泄压管上端外壁上，本发明通过抽水管穿过降水井管，便于将降水井管内的水抽干；在混凝土成型过程中，井内压力水可通过泄压管排出，避免地下水击穿填充混凝土导致封井失效的问题；混凝土成型后，在高度方向空间有限情况，可通过侧向的注浆支管连接外部注浆管，向泄压管内注入微膨胀混凝土来填充泄压管，提高了封堵施工的灵活性。
Plugging structure and plugging method for dewatering well
一种降水井封堵结构及封堵方法
WEI GONGMIN (author) / AI HOUJUN (author) / DAI YUMING (author) / WANG BO (author) / WANG YUNZHOU (author) / JIN JIANGBO (author) / WAN ZHIQIANG (author) / LI FUXIANG (author) / GUO XIAOPENG (author)
2022-12-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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