发明名称 |
METHOD FOR CONSTRUCTION OF DRILLING-INJECTION PILES |
摘要 |
FIELD: construction engineering. SUBSTANCE: relates to building of foundations and can be used for fortification of existing foundations of buildings and other structures. Method implies drilling of bore-holes and installation of reinforcing framework into bore-hole. Framework is made up of sections consisting of reinforcement rods located over generating lines of steel cylinders which are installed over length of pile after every 2-20 diameters of pile. Reinforcing rods are connected to cylinders by intermittent weld joints. After that, bore-hole is filled with cement slurry with water-to-cement ratio being equal to 0.1-0.8 with subsequent mounting of hermetic sealing device. Pile body is subjected to pressure treatment under pressure of 0.1-1.0 MPa with injection operation performed in separate stages. Duration of first stage of injection operation is 120-400 s, duration of second stage of injection operation is 400-620 s. At each stage, pressure is increased by 0.1-0.9 MPa. Application of aforesaid method allows for increasing load-bearing capacity of pile body. EFFECT: higher efficiency. 1 cl
|
申请公布号 |
RU2148124(C1) |
申请公布日期 |
2000.04.27 |
申请号 |
RU19970117185 |
申请日期 |
1997.10.09 |
申请人 |
AKTSIONERNOE OBSHCHESTVO ZAKRYTOGO TIPA AKTSIONERN;AKTSIONERN AOZT |
发明人 |
BASHMAKOV V.M.;BAKHOLDIN B.V.;ZHIVODEROV V.N.;KALINKEVICH D.A.;SVETINSKIJ E.V.;JASTREBOV P.I. |
分类号 |
E02D5/46;(IPC1-7):E02D5/46 |
主分类号 |
E02D5/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|