Prefabricated underground diaphragm wall capable of being integrally recycled, hanging tool and construction method

Abstract

The invention discloses a prefabricated underground diaphragm wall capable of being integrally recycled, a hanging tool and a construction method. The diaphragm wall comprises a concrete cushion, an arch bar beam base and a spliced diaphragm wall which are successively arranged from bottom to top, wherein the spliced diaphragm wall is formed by splicing a plurality of arch bar beam members, continuous round steel and a rubber steel plate base; the arch bar beam members have different length models, and long arch bar beam members and short arch bar beam member are arranged transversely and longitudinally in a staggered manner, and the upper and lower arch bar beam members in cutting depth are connected through an arc-shaped pipe piece bolts. The diaphragm wall is formed by means of the structure by splicing the arch bar members, so that the diaphragm wall is compact in connection, good in integral performance and easy to control deformation of wall. The diaphragm wall can be also hoisted out integrally in accordance with specific conditions, and is recycled repeatedly, so that the resources are saved and the diaphragm wall is economical and environment-friendly.

Description

technical field [0001] The invention relates to an underground building construction device and a construction method, in particular to a prefabricated underground continuous wall, a spreader and a construction method that can be used as a whole and recycled. Background technique [0002] The underground diaphragm wall is a kind of excavation construction process. Its construction method is to excavate a narrow and long deep groove along the periphery of the deep excavation project with the excavation equipment under the condition of mud retaining wall, and pour into the groove after cleaning the groove Appropriate materials are used to form a wall, and then several sections of the wall are connected into a whole, that is, a continuous underground wall, which is used as a water interception, seepage prevention, load bearing, and water retaining structure. Specific construction procedures such as figure 1 shown. The construction of this kind of diaphragm wall has the follow...

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Problems solved by technology

[0003] However, the defects of this traditional cast-in-place monolithic underground diaphragm wall are also relatively prominent, mainly in the following aspects: 1. The construction process of the underground diaphragm wall is complicated, the construction period is long, and the cost is very expensive; 2. The underground diaphragm wall is used as a temporary retaining soil 1. The anti-seepage wall cannot be recycled when used, resulting in unnecessary waste; 3. The quality of the joints at the joints of the underground continuous wall is difficult to control, which is a weak link in the construction; and the wall is inclined, and the surface is bulged and exposed Problems such as reinforcement and leakage need to be further processed, which not only wastes costs, but also has a great impact on the construction of the main structure in the later stage; 5. Construction technology, selection of groove forming machines, underground groove construction, joint treatment, pouring concrete, mud Every link such as treatment needs to be properly handled, and no omissions can be left, otherwise it will have a serious impact on the quality of the wall; 6. During construction, the groundwater level rises rapidly, and the liquid level of the retaining mud drops rapidly. If the nature of the mud is problematic or deteriorated, Coupled with improper construction management, or the presence of weak and loose sandy interlayers, the tank wall is prone to collapse, ranging from overcubic concrete on the wall and out-of-bounds structural dimensions, to subsidence or even collapse of the adjacent ground, causing damage to adjacent buildings and underground pipelines ; 7. It is difficult to arrange detection devices for accurate detection of the soil layer on the facing soil surface, and the existing detection methods such as road surface settlement and deformation are relatively lagging behind

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