Combination reinforcing construction method for underground structure
A technology for underground structures and construction methods, which is applied to underwater structures, infrastructure engineering, buildings, etc., can solve problems such as meeting requirements but cannot ensure settlement and deformation during construction, so as to ensure safe and stable operation, overcome hidden dangers of settlement, reduce Effects of security risks
Inactive Publication Date: 2021-01-01
CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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Problems solved by technology
In order to avoid a large number of guide and relocation work, the construction method of underground excavation can be used to meet the construction requirements, but when encountering important underground structures or pipelines, only conventional construction control measures cannot ensure that the settlement deformation during the construction process meets the requirements
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Embodiment Construction
[0027] see figure 1 , 2 , the method of the specific embodiment of the present invention is as follows:
[0028] 1) measuring and setting out;
[0029] 1.1) According to the investigation data of the underground structure 2, the sideline of the underground structure 2 is measured and released, and the actual position of the underground structure 2 is rechecked, and the position of the underground structure 2 is marked on the original ground 1;
[0030] 1.2) According to the position of the sideline of the underground structure, the MJS horizontal reinforcement range 3 and the vertical high-pressure jet jetting pile reinforcement range 4 of the horizontal MJS pile (all-round high-pressure jetting pile) are measured and released.
[0031] 2) Construction of horizontal MJS reinforced piles;
[0032] 2.1) After the launch shaft 5 is excavated to the elevation required for the construction of horizontal reinforcement piles, the base is leveled and compacted to meet the bearing c...
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The invention relates to a combination reinforcing construction method for an underground structure. The method comprises the following steps of 1) surveying and setting out; 2) horizontal MJS reinforcing pile construction; and 3) vertical high-pressure jet grouting reinforcing pile construction. According to the construction method, the safety risk during underneath passing of the important underground structures is reduced, good construction conditions are created for later underground excavation and close-range underneath passing of the underground structures due to the good reinforcing quality, the common ground and underground structure settlement hidden danger in previous underground excavation construction is overcome, and the safe and stable operation of the underground structure is guaranteed.
Description
technical field [0001] The invention relates to a building construction method, in particular to a combined reinforcement construction method for underground structures. Background technique [0002] The biggest difficulties encountered in the construction of comprehensive pipe corridors or underground passages in large cities are "traffic guidance reform" and "pipeline relocation". In order to avoid a large number of guiding and relocation work, the construction method of underground excavation can be used to meet the construction requirements. However, when encountering important underground structures or pipelines, only conventional construction control measures cannot ensure that the settlement deformation during the construction process meets the requirements. Contents of the invention [0003] In order to solve the technical problems in the background technology, the present invention provides a combined reinforcement construction method for underground structures, w...
Claims
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IPC IPC(8): E02D29/045E02D5/46E02D31/00
CPCE02D5/46E02D29/045E02D29/10E02D31/00
Inventor 骆发江田勇江少兵孟锦黄松松张波谷雨李鹏刘强陈生杰许胜冯宏团
Owner CHINA CONSTR THIRD ENG BUREAU GRP CO LTD