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A platform for research: civil engineering, architecture and urbanism
Sleeve valve pipe grouting reinforcement construction method for water-rich stratum with loose soil texture
The invention provides a sleeve valve pipe grouting reinforcement construction method for a water-rich stratum with loose soil texture. The sleeve valve pipe grouting reinforcement construction method for the water-rich stratum with loose soil texture comprises the steps of setting out and positioning a hole site of a grouting hole, and drilling the hole at the hole site vertical to the stratum to a designed depth; lowering a sleeve valve pipe into the drilling hole to the bottom of the hole and temporarily fixing the sleeve valve pipe; filling an annular gap between the outer wall of the sleeve valve pipe and the inner wall of the drilling hole with a filling layer with the fixed height to ensure that the sleeve valve pipe is fixed in the drilling hole through the filling layer; casting a sleeve shell material in the annular gap above the filling layer; and controlling the grouting pipe to conduct grouting on the sleeve valve pipe. According to the sleeve valve pipe grouting reinforcement construction method for the water-rich stratum with loose soil texture, the construction sequence of the sleeve valve pipe and the sleeve shell material is improved, and the sleeve valve pipe is fixed in the drilling hole through the filling layer according to the actual construction condition design, so that the sleeve valve pipe can have the remarkable anti-floating effect; then the sleeve shell material is poured, so that loss and hole collapse caused by the fact that the sleeve shell material is poured into an underground water layer firstly are avoided, normal construction of follow-up grouting and secondary grout supplementing is guaranteed, and therefore the grouting reinforcement effect is guaranteed.
本发明提供一种用于土质松散富水地层袖阀管注浆加固施工方法，包括步骤：对注浆孔的孔位进行放线定位，于孔位处垂直地层钻孔至设计深度；向钻孔内下放袖阀管至孔底并临时固定袖阀管；于袖阀管外壁与钻孔内壁之间的环状间隙内填入固定高度的填充层，确保填充层固定袖阀管于钻孔内；于填充层上方的环状间隙内浇注套壳料；控制注浆管于袖阀管注浆。本发明通过改进袖阀管和套壳料的施工顺序，并结合实际施工状况设计采用填充层固定袖阀管于钻孔内，使袖阀管能够具有显著的抗浮效果，之后再浇注套壳料，避免了套壳料先浇注地下水层冲击造成的散失和塌孔，保证后续注浆和二次补浆的正常施工，从而保证注浆加固的效果。
Sleeve valve pipe grouting reinforcement construction method for water-rich stratum with loose soil texture
The invention provides a sleeve valve pipe grouting reinforcement construction method for a water-rich stratum with loose soil texture. The sleeve valve pipe grouting reinforcement construction method for the water-rich stratum with loose soil texture comprises the steps of setting out and positioning a hole site of a grouting hole, and drilling the hole at the hole site vertical to the stratum to a designed depth; lowering a sleeve valve pipe into the drilling hole to the bottom of the hole and temporarily fixing the sleeve valve pipe; filling an annular gap between the outer wall of the sleeve valve pipe and the inner wall of the drilling hole with a filling layer with the fixed height to ensure that the sleeve valve pipe is fixed in the drilling hole through the filling layer; casting a sleeve shell material in the annular gap above the filling layer; and controlling the grouting pipe to conduct grouting on the sleeve valve pipe. According to the sleeve valve pipe grouting reinforcement construction method for the water-rich stratum with loose soil texture, the construction sequence of the sleeve valve pipe and the sleeve shell material is improved, and the sleeve valve pipe is fixed in the drilling hole through the filling layer according to the actual construction condition design, so that the sleeve valve pipe can have the remarkable anti-floating effect; then the sleeve shell material is poured, so that loss and hole collapse caused by the fact that the sleeve shell material is poured into an underground water layer firstly are avoided, normal construction of follow-up grouting and secondary grout supplementing is guaranteed, and therefore the grouting reinforcement effect is guaranteed.
本发明提供一种用于土质松散富水地层袖阀管注浆加固施工方法，包括步骤：对注浆孔的孔位进行放线定位，于孔位处垂直地层钻孔至设计深度；向钻孔内下放袖阀管至孔底并临时固定袖阀管；于袖阀管外壁与钻孔内壁之间的环状间隙内填入固定高度的填充层，确保填充层固定袖阀管于钻孔内；于填充层上方的环状间隙内浇注套壳料；控制注浆管于袖阀管注浆。本发明通过改进袖阀管和套壳料的施工顺序，并结合实际施工状况设计采用填充层固定袖阀管于钻孔内，使袖阀管能够具有显著的抗浮效果，之后再浇注套壳料，避免了套壳料先浇注地下水层冲击造成的散失和塌孔，保证后续注浆和二次补浆的正常施工，从而保证注浆加固的效果。
Sleeve valve pipe grouting reinforcement construction method for water-rich stratum with loose soil texture
用于土质松散富水地层袖阀管注浆加固施工方法
HE GUOHUI (author) / JI BENXIN (author) / LI RONGPENG (author) / REN HESHI (author) / LIU XIANGTAO (author) / LIU PENGPENG (author) / FU BINGYANG (author) / YANG QIUSHI (author) / GUO FUZHANG (author) / MA PENGKE (author)
2021-07-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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