Construction technology of building foundation structure
A construction technology and foundation technology, which can be used in infrastructure engineering, construction, geotextiles, etc., and can solve problems such as pile foundation subsidence.
Active Publication Date: 2022-03-29
山东国士建工集团有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a construction technology for building foundation structure to solve the problem that the pile foundation is not blocked in the pile hole and the pile foundation is prone to subsidence in the construction of the existing conventional foundation structure
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Embodiment Construction
[0032] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0033] Such as Figure 1-Figure 9 Shown, a kind of building foundation structure construction technique of the present invention comprises the following steps:
[0034] Step S100: On-site survey, according to the rock condition of the construction site, dig out the foundation pit 1, select and determine the position of each pile foundation 2 in the foundation pit 1;
[0035] The shape of the foundation pit 1 is rectangular, and the positions of each pile foundation 2 are respectively selected on the line connecting the sides of the foundation pit 1 and the midpoint of the long side of the foundation pit 1, and the positions of the pile foundation 2 are in a Japanese-shaped structure;
[0036] Step S200: Drive into the outer cylinder 3 at th...
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The invention relates to a construction process for a building foundation structure, which comprises the following steps: driving out a foundation pit to determine the position of a pile foundation; driving an outer cylinder and taking it out to form a pile hole; laying a protective cushion layer, and inserting a cast-in-place steel cage into the pile hole; Concrete is poured into the hole; the concrete is solidified to form a concrete base, put into the inner cylinder and filled with soil to form a compact annular soil layer together with the inner wall of the pile hole; take out the inner cylinder, pour concrete, and solidify to form an annular concrete layer; Put in the inner cylinder, fill with soil, and form a compact annular soil layer again, take out the inner cylinder, pour concrete, form an annular concrete layer again, and repeat the filling cycle; pour concrete into the foundation pit; through the above construction , can make the annular concrete layer of the pile foundation and the annular soil layer of the pile hole form a ring platform structure alternately buckled with each other, which can effectively solve the problem that the pile foundation is prone to sinking, and improve the stability of the pile foundation. And more stable.
Description
technical field [0001] The invention belongs to the technical field of foundation construction, and in particular relates to a construction technology of a building foundation structure. Background technique [0002] The foundation is the soil layer under the foundation. Its function is to bear all the loads transmitted from the foundation. The foundation is the load-bearing component of the building buried below the ground. It is an important part of the building. Its function is to bear the load transmitted from the building. full loads and transfers these loads, together with its own weight, to the underlying soil layer. [0003] When building the foundation structure, due to the limited bearing capacity of the soil foundation itself, when building the foundation structure on the ground, it is necessary to drill holes and use poured concrete piles to bury the piles for foundation construction to ensure the stability of the foundation structure. In the conventional constr...
Claims
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IPC IPC(8): E02D5/36E02D5/68E02D31/02E02D5/48
CPCE02D5/36E02D5/68E02D31/02E02D31/025E02D5/48E02D2250/0023E02D2300/0085E02D2450/106
Inventor 宋德三
Owner 山东国士建工集团有限公司