| 摘要 |
A hume pipe connection structure of a manhole is provided to prevent mortar from leaking into the manhole by disposing form resin between a form flange and the inner wall of the hume pipe. In a hume pipe connection structure of a manhole(10), the manhole has a hume pipe hole(11) and a connection support(12) with a mortar filling groove(13). A hume pipe(20) is inserted into the hume pipe hole through the connection support, and then a mortar(19) is poured into the mortar filling groove to integrate the hume pipe with the manhole. The inner diameter of the hume pipe hole is extended to install the hume pipe freely. A form having a flange(16) and an insertion part(17) is inserted into the hume pipe, which is fit to the hume pipe hole, to seal the clearance between the hume pipe and the extended hume pipe hole. The flange of the form is larger than the hume pipe hole. A hume pipe support(14) is formed at the top of the hume pipe hole. A form resin(18) is injected between the flange and the inner wall of the hume pipe. |
