Sinking construction device for cast-in-place underground building

Abstract

The invention discloses a sinking construction device for a cast-in-place underground building, and relates to the technical field of underground building construction. The building comprises an outer wall, a top plate, a bottom plate and a construction device, the building is composed of end sections located at the two ends and a middle section located in the middle, and the outer wall comprises longitudinal walls and a transverse wall; the outer wall comprises a lower wall located below the bottom plate and an upper wall located above the bottom plate, the longitudinal walls comprise a lower longitudinal wall and an upper longitudinal wall, an end section comprises the transverse wall located at the end and the two longitudinal walls located on the two sides, and the middle section comprises the longitudinal walls located on the two sides; chain cutters comprise an outer wall chain cutter in an outer wall excavating device and a bottom plate chain cutter in a bottom plate excavating device, an outer wall driving device is installed above an outer wall, and a bottom plate driving device is installed above a building sinking part. According to the sinking construction device for the cast-in-place underground building, an outer wall chain cutter envelopes the outer wall from the top of the building sinking part, and a bottom plate chain cutter envelopes the bottom plate from the top of the building sinking part; holes which are staggered up and down are formed in the upper part of the lower longitudinal wall; and the bottom plate chain cutter envelops the whole section of the building sinking part through the holes.

Description

Technical field [0001] The present invention relates to the technical field of underground construction, in particular means for sinking situ underground construction of buildings. Background technique [0002] Existing large-scale open-cut method commonly used in underground building construction, excavation pit open-cut method you need to do support, then pouring or assembled in the underground construction pit, pit need to do temporary support and precipitation, long duration, high cost; excavating chain cutter currently used in geotechnical bottom, the whole aspect of sinking, only excavating chain cutter apparatus, no hanger means, by gravity sinking completely, so there are the following drawbacks: [0003] 1, each boot, its own weight of all the pressure on the bottom of the chain cutter, and chain cutter frangible greatly increased drive power; [0004] 2, due to its eccentric force, or may be present in different regions of the base have different geological conditions, ...

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Problems solved by technology

[0002]Existing large-scale underground buildings are usually constructed by the open-cut method. The open-cut method needs to excavate the foundation pit first for support, and then pour or assemble the underground building in the foundation pit. The temporary support and dewatering of the foundation pit requires a long construction period and high cost; currently, the chain knife is used to excavate the bottom rock and soil, and the technical solution of the overall sinking is only the chain knife excavation device, without the hanging device, and the sinking is completely by its own weight, so there is The following defects:

[0003]1. Every time it is turned on, its own weight is all pressed on the bottom chain knife, the chain knife is easy to break and the driving power is greatly increased;

[0004]2. Due to the possible eccentric force or the different geological conditions in different areas of the bottom, it is easy to tilt. Once such a large volume tilts, it will be difficult Correction;

[0005]3. The bottom may have different geological conditions at different heights or in different areas on the same level. For different geological conditions (such as pebbles and boulders), it is necessary to There are different feed rates, but there is no hanging device, the sinking speed is completely out of control, and the cutter head is easy to wear or even break

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