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A platform for research: civil engineering, architecture and urbanism
Water-rich silt stratum advanced freezing reinforcement method for underground diaphragm wall construction
The invention discloses a water-rich silt stratum advanced freezing reinforcement method for underground diaphragm wall construction. The method comprises the steps that 1, a heat exchange device is arranged; 2, freezing and reinforcing are conducted; and 3, the underground diaphragm wall is constructed. Silt soil layers on the two sides of a to-be-excavated groove wall of an underground diaphragmwall are actively frozen to form a reinforcing pile wall before excavation, then the reinforcing pile wall is maintained and frozen, the formed reinforcing pile wall has enough strength, the upper portion interval of the reinforcing pile wall is wide, the lower portion interval of the reinforcing pile wall is narrow, the side wall of the to-be-excavated groove wall can be reinforced, the bottom can further be frozen and reinforced more effectively, engineering accidents such as water gushing are prevented, the possibility of groove wall collapse in the excavation process of the underground diaphragm wall is effectively reduced, the method is suitable for the conditions of silt sand inclusion layers and high underground water level excavation, it is guaranteed that follow-up excavation construction is carried out safely, reliably and smoothly, practicability is high, the effect of reducing pollution can also be achieved, and application and popularization are facilitated.
本发明公开了一种地下连续墙施工用富水粉砂地层超前冻结加固方法，包括步骤：一、热交换装置布设；二、冻结加固、三、地下连续墙施工。本发明在开挖前对地下连续墙待开挖槽壁两侧粉砂土层进行积极冻结形成加固桩墙，然后对加固桩墙进行维护冻结，使形成的加固桩墙具有足够的强度，加固桩墙上部间距宽、下部间距窄，不仅能对预开挖槽壁侧壁进行加固，还能对底部进行更有效的冻结加固，防止涌水等工程事故的发生，有效地降低地下连续墙开挖过程中槽壁坍塌的可能，适用于有粉土夹砂层及高地下水位开挖的情况，确保后续开挖施工安全、可靠、顺利开展，可实施性强，也能起到减少污染的效果，便于推广使用。
Water-rich silt stratum advanced freezing reinforcement method for underground diaphragm wall construction
The invention discloses a water-rich silt stratum advanced freezing reinforcement method for underground diaphragm wall construction. The method comprises the steps that 1, a heat exchange device is arranged; 2, freezing and reinforcing are conducted; and 3, the underground diaphragm wall is constructed. Silt soil layers on the two sides of a to-be-excavated groove wall of an underground diaphragmwall are actively frozen to form a reinforcing pile wall before excavation, then the reinforcing pile wall is maintained and frozen, the formed reinforcing pile wall has enough strength, the upper portion interval of the reinforcing pile wall is wide, the lower portion interval of the reinforcing pile wall is narrow, the side wall of the to-be-excavated groove wall can be reinforced, the bottom can further be frozen and reinforced more effectively, engineering accidents such as water gushing are prevented, the possibility of groove wall collapse in the excavation process of the underground diaphragm wall is effectively reduced, the method is suitable for the conditions of silt sand inclusion layers and high underground water level excavation, it is guaranteed that follow-up excavation construction is carried out safely, reliably and smoothly, practicability is high, the effect of reducing pollution can also be achieved, and application and popularization are facilitated.
本发明公开了一种地下连续墙施工用富水粉砂地层超前冻结加固方法，包括步骤：一、热交换装置布设；二、冻结加固、三、地下连续墙施工。本发明在开挖前对地下连续墙待开挖槽壁两侧粉砂土层进行积极冻结形成加固桩墙，然后对加固桩墙进行维护冻结，使形成的加固桩墙具有足够的强度，加固桩墙上部间距宽、下部间距窄，不仅能对预开挖槽壁侧壁进行加固，还能对底部进行更有效的冻结加固，防止涌水等工程事故的发生，有效地降低地下连续墙开挖过程中槽壁坍塌的可能，适用于有粉土夹砂层及高地下水位开挖的情况，确保后续开挖施工安全、可靠、顺利开展，可实施性强，也能起到减少污染的效果，便于推广使用。
Water-rich silt stratum advanced freezing reinforcement method for underground diaphragm wall construction
地下连续墙施工用富水粉砂地层超前冻结加固方法
TANG PEIWEN (author) / YAN CHAOFENG (author) / LIU BING (author) / XUE QINGSONG (author) / ZHANG QIANG (author) / FAN TAO (author) / SUN WEIFU (author) / WEI KAI (author) / WEI ZONGHUA (author) / WANG XIAOBING (author)
2021-03-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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