Construction method of foundation pit retaining and supporting system
A technology of foundation pit enclosure and support system, which is applied in the direction of basic structure engineering, excavation, construction, etc., can solve the problems of large manpower, material resources, unsuitable wall thickness, slow construction speed, etc., and achieve shortened construction period and good technology Benefits and economic benefits, the effect of high flatness
Active Publication Date: 2019-09-20
ANHUI HIGHWAY BRIDGE ENG CO LTD
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Problems solved by technology
[0003] The support of traditional subway station foundation pits adopts enclosure piles and underground diaphragm walls as enclosure structures, and usually adopts the cast-in-place method, which has a slow construction speed and a long construction peri
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[0039] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
[0040] The construction method of the described foundation pit enclosure support system comprises the following steps:
[0041] (1) Construction of foundation pit enclosure structure. like figure 2 As shown, the groove forming machine is used to form grooves according to the design requirements, and the assembled prefabricated reinforced concrete enclosure pile 2 and the assembled prefabricated reinforced concrete retaining wall 3 are assembled by hoisting equ...
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The invention relates to a construction method of a foundation pit retaining and supporting system. The construction method comprises the steps that step one, foundation pit retaining structure construction is performed; step two, crown beam construction is performed; step three, retaining pile end joint construction is performed; step four, first wale construction is performed; step five, first support erection is performed; step six, excavating while supporting is performed to the designed elevation of a foundation pit; and step seven, the leakage of the foundation pit is quickly repaired. The construction method has the beneficial effects that a prefabricated reinforced concrete retaining structure adopted only needs to be assembled on site, compared with a traditional retaining structure which needs to be cast in situ, the construction period is shortened, the construction progress is accelerated, and good technical and economic benefits are achieved; and the retaining structure and prestressed capping beams are connected in a strengthened mode, so that the upper part of the retaining structure is connected as a whole, the stability of the upper part of the retaining structure is greatly improved, and the technical benefit is remarkable.
Description
technical field [0001] The invention relates to the technical field of foundation pit engineering, in particular to a construction method for a foundation pit enclosure support system. Background technique [0002] Since the reform and opening up, with the rapid development of my country's social economy, the scale of urban construction in our country has become larger and larger, and the urban population has also increased. Following this, the problem of urban traffic congestion has been alleviated, so many emerging cities have begun to build Subway, the number of subway lines in more developed first- and second-tier cities is also increasing. As an auxiliary project for subway station construction, the support system is of great significance for ensuring construction quality and safety. [0003] The support of traditional subway station foundation pits adopts enclosure piles and underground diaphragm walls as enclosure structures, and usually adopts the cast-in-place metho...
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Login to View More IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 王锐余跃汪靳祥王守武齐小辉孙维龙梅停
Owner ANHUI HIGHWAY BRIDGE ENG CO LTD