Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Horizontal post-grouting device pre-buried in underground diaphragm wall
The invention relates to a horizontal post-grouting device pre-buried in an underground diaphragm wall, which comprises an underground diaphragm wall reinforcement cage and a horizontal post-grouting pipe, and the horizontal post-grouting pipe is arranged in the underground diaphragm wall reinforcement cage of a deep foundation pit support structure which is subsequently built. And horizontal post-grouting pipes are densely arranged below the poor soil layer, the unstable soil layer and the sensitive structure. Before earth excavation, the horizontal rear grouting pipe sprays cement grout with certain pressure in the horizontal direction for reinforcement treatment. By the adoption of the technical scheme, possible adverse disturbance of the later-built deep foundation pit to the existing building (structure) can be effectively reduced. In the construction process of the later-built deep foundation pit, when dangerous cases such as sedimentation and deformation of existing buildings (structures) occur, the device can also serve as an emergency rescue means, holes are formed in time, horizontal grouting is conducted on the bottom of the bottom plate, dangerous case expansion is avoided, and the safety of the buildings (structures) is guaranteed. The horizontal grouting device is matched with the one-way valve, so that leakage can be avoided when emergency situations are not needed or are not reached.
本发明涉及一种在地下连续墙中预先埋设的水平后注浆装置，包括地下连续墙钢筋笼、水平后注浆管，水平后注浆管安置在随后建深基坑围护结构的地下连续墙钢筋笼内。在不良土层、不稳定土层和敏感构筑物下方处加密布置水平后注浆管。在土方开挖前，水平后注浆管在水平方向上喷射带一定压力的水泥浆液进行加固处置。采用本发明的技术方案，可以有效降低后建深基坑对既有建(构)筑物可能产生的不利扰动。在后建深基坑施工过程中，既有建(构)筑物发生沉降、变形等险情时，也可作为应急抢险手段，及时开孔向其底板底部水平注浆，避免险情扩大，确保建(构)筑物安全。该水平方向注浆装置配套单向阀，可在不需要或未达应急突发情况时避免渗漏。
Horizontal post-grouting device pre-buried in underground diaphragm wall
The invention relates to a horizontal post-grouting device pre-buried in an underground diaphragm wall, which comprises an underground diaphragm wall reinforcement cage and a horizontal post-grouting pipe, and the horizontal post-grouting pipe is arranged in the underground diaphragm wall reinforcement cage of a deep foundation pit support structure which is subsequently built. And horizontal post-grouting pipes are densely arranged below the poor soil layer, the unstable soil layer and the sensitive structure. Before earth excavation, the horizontal rear grouting pipe sprays cement grout with certain pressure in the horizontal direction for reinforcement treatment. By the adoption of the technical scheme, possible adverse disturbance of the later-built deep foundation pit to the existing building (structure) can be effectively reduced. In the construction process of the later-built deep foundation pit, when dangerous cases such as sedimentation and deformation of existing buildings (structures) occur, the device can also serve as an emergency rescue means, holes are formed in time, horizontal grouting is conducted on the bottom of the bottom plate, dangerous case expansion is avoided, and the safety of the buildings (structures) is guaranteed. The horizontal grouting device is matched with the one-way valve, so that leakage can be avoided when emergency situations are not needed or are not reached.
本发明涉及一种在地下连续墙中预先埋设的水平后注浆装置，包括地下连续墙钢筋笼、水平后注浆管，水平后注浆管安置在随后建深基坑围护结构的地下连续墙钢筋笼内。在不良土层、不稳定土层和敏感构筑物下方处加密布置水平后注浆管。在土方开挖前，水平后注浆管在水平方向上喷射带一定压力的水泥浆液进行加固处置。采用本发明的技术方案，可以有效降低后建深基坑对既有建(构)筑物可能产生的不利扰动。在后建深基坑施工过程中，既有建(构)筑物发生沉降、变形等险情时，也可作为应急抢险手段，及时开孔向其底板底部水平注浆，避免险情扩大，确保建(构)筑物安全。该水平方向注浆装置配套单向阀，可在不需要或未达应急突发情况时避免渗漏。
Horizontal post-grouting device pre-buried in underground diaphragm wall
一种在地下连续墙中预先埋设的水平后注浆装置
CHEN YIGUI (Autor:in) / GUO HAILUN (Autor:in) / QIN JIAN (Autor:in) / PAN WEIJIAN (Autor:in) / LIAO DONGSHENG (Autor:in) / YU PING (Autor:in) / ZHU JUN (Autor:in) / ZHUANG JIARONG (Autor:in)
27.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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