Construction method for middle inspection well through reverse construction method

Abstract

The invention relates to the technical field of inspection well construction, and provides a construction method for a middle inspection well through a reverse construction method. The construction method comprises the following steps of excavating an auxiliary foundation trench step by step by adopting the reverse construction method, and pouring a pile casing top section, a pile casing standard end and a pile casing bottom end step by step to carry out pouring construction of the pile casing. In the casting process of the pile casing, large-scale excavation of a soil body near a construction area of the inspection well is not needed, so that the soil body near the construction area of the inspection well is not easy to disturb, and the effect that an embedded object near the construction area of the inspection well is not easy to settle and deform is achieved.

Description

technical field [0001] The present application relates to the technical field of inspection well construction, and in particular to an intermediate inspection well construction method of the reverse method. Background technique [0002] With the continuous development of the city, the drainage demand of the city is also increasing. The drainage capacity of the original drainage pipes in the city cannot meet the growing drainage demand. In order to improve the above situation, it is usually necessary to add new drainage pipes. The drainage pipe and the original drainage pipe work together. It is usually necessary to pour an intermediate inspection well on the original drainage pipe first, and then connect the new drainage pipe and the original drainage pipe into the intermediate inspection well, so that the original drainage pipe and the newly added drainage pipe Drains work together. [0003] In the related art, the middle manhole includes a main casing, the top of the main...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: in the construction process of the cast-in-place caisson method, a large amount of soil around the main casing needs to be excavated to make the main casing sink continuously, and this process will cause the surrounding areas of the inspection well construction area The soil of the inspection well is loosened, which leads to the settlement of the buried objects around the inspection well, which has a great impact on the surrounding buried objects.

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