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Construction method for differential settlement control of framed bent structure factory building in excavation and filling area

A technology for differential settlement and structural workshops, which is applied in basic structure engineering, soil protection, construction, etc. It can solve the problems of differential foundation settlement, main structure damage, and large fill thickness, etc., and achieve small post-construction settlement and compression modulus Large, the effect of settlement control

Pending Publication Date: 2022-07-15
云南建投第一勘察设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the main consolidation deformation of the filling body has been basically completed during the filling construction process, due to the large filling thickness, uneven filling and filling thickness, and difficulty in strictly controlling the construction quality, the self-weight of the filling and the upper building load Under the action of the continuous consolidation and settlement of the fill, it will exist for a long time
If the upper bent structure spans the excavation and filling area, it is easy to cause serious differential settlement due to the post-construction settlement of the foundation of the fill site. If it is not handled properly, an accident of differential settlement of the foundation will occur, resulting in damage to the main structure

Method used

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  • Construction method for differential settlement control of framed bent structure factory building in excavation and filling area

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Embodiment 2

[0033] A construction method for differential settlement control of a bent frame structure workshop in an excavation and filling area;

[0034] The construction method includes:

[0035] S1: site leveling;

[0036] S2: The site is layered and compacted

[0037] The layer thickness is 6000-8000mm, and the site fill is subjected to dynamic compaction with two point compactions and one full compaction;

[0038] S3: Construction of dynamic compaction punching and compacted gravel pier

[0039] In the filling area and the bearing platform area of ​​the surrounding frame structure of the site, the crushed stone piers are compacted by punching with dynamic ramming. ;

[0040] S4: Construction of gravel cushion structure in excavation area

[0041] For the excavation area, use 700-900mm thick gravel cushion;

[0042] S5: Rotary excavation of bored cast-in-place piles at the junction area of ​​fill and slope.

[0043] The S3 impact hole forming: arrange a gravel pier under each ...

Embodiment 3

[0049] The construction method of differential settlement control of the bent frame structure workshop of the construction project of the aluminum alloy formwork production base in Anning Industrial Park (1.5 million square meters);

[0050] Project Overview

[0051] The proposed site is located in Maming'an Village, Caopu Town, Anning City, Kunming City. The proposed site is Longning Road on the north side, Ming'an Road on the east side, and Longshu Road on the west side. All three roads are newly built municipal asphalt roads in the park. , the south side of the site is now open space, and later is the planned land for other projects. Most of the site is sloping, and some parts have been preliminarily leveled.

[0052] The overall terrain of the site is high in the northwest and low in the southeast. Some areas of the site have been excavated, filled and leveled. The top of the original hill on the northwest side has been excavated about 15.0m, while the original low-lying ...

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Abstract

The invention discloses a differential settlement control structure for a workshop with a framed bent structure in an excavation and fill area and a construction method, aiming at a foundation of the excavation and fill area, an excavation area, a fill area and a fill and side slope junction area are respectively treated by adopting a broken stone hardcore structure, a composite foundation structure and a rotary excavation hole-forming cast-in-place pile structure; differential settlement is controlled within 15 mm by performing different treatments on foundations in different condition areas, dynamic compaction punching compaction gravel piers serve as a bearing foundation of a bent frame structure, the reinforced filling body composite foundation is high in bearing capacity, large in compression modulus and small in post-construction settlement, piles are replaced by ramming, and conditions are created for adopting a shallow foundation; and in addition, through the treatment mode, the overall sedimentation is effectively controlled.

Description

technical field [0001] The invention relates to a construction method for differential settlement control of a bent frame structure workshop in an excavation and filling area, and relates to the technical field of foundation engineering. Background technique [0002] With the development of the national economy, there are more and more facilities construction projects of various types. Due to terrain factors, the land resources in the southwest region are increasingly tense. The excavation and filling works can expand the land use capacity and solve the land use problems for the region. Therefore, the more It has become an inevitable trend for more and more facilities to be built in fill areas and cut and fill combined areas. [0003] Although the main consolidation deformation of the filling body in the filling construction process has been basically completed, due to the large thickness of the filling, the uneven thickness of the filling and filling, and the difficulty of ...

Claims

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Application Information

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IPC IPC(8): E02D31/00E02D31/08E02D5/38E02D15/04E02D3/068E02D27/12E02D3/08
CPCE02D31/00E02D31/08E02D5/38E02D15/04E02D3/068E02D27/12E02D3/08
Inventor 王城刘克文杨纬卿杨明峰刘秀清徐同越李廷雄鲍春映徐兴涛董天雷侯建伟付永辉宋汶京李云海
Owner 云南建投第一勘察设计有限公司