CN113818451A - A diagonal double-row all-steel enclosure system - Google Patents

A diagonal double-row all-steel enclosure system Download PDF

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Publication number
CN113818451A
CN113818451A CN202111227406.XA CN202111227406A CN113818451A CN 113818451 A CN113818451 A CN 113818451A CN 202111227406 A CN202111227406 A CN 202111227406A CN 113818451 A CN113818451 A CN 113818451A
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CN
China
Prior art keywords
row
double
steel
enclosure system
oblique
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Pending
Application number
CN202111227406.XA
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Chinese (zh)
Inventor
周玉石
谢晓东
刘国锋
甄卫刚
李飞
张群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Chengdi Rock Soil Design Co ltd
Shanghai Chengdixiangjiang Data Technology Co ltd
Chengdi Construction Group Co ltd
Original Assignee
Shanghai Chengdi Rock Soil Design Co ltd
Shanghai Chengdixiangjiang Data Technology Co ltd
Chengdi Construction Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Shanghai Chengdi Rock Soil Design Co ltd, Shanghai Chengdixiangjiang Data Technology Co ltd, Chengdi Construction Group Co ltd filed Critical Shanghai Chengdi Rock Soil Design Co ltd
Priority to CN202111227406.XA priority Critical patent/CN113818451A/en
Publication of CN113818451A publication Critical patent/CN113818451A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits
    • E02D17/04—Bordering surfacing or stiffening the sides of foundation pits

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Foundations (AREA)

Abstract

The invention relates to an oblique double-row all-steel enclosure system, and belongs to the field of pile foundation enclosures. The oblique double-row all-steel enclosure system comprises a ring beam, a top pressing plate, double-row section steel inclined struts, vertical construction method piles, section steel waist beams and section steel connecting rods. After the construction of the construction method piles is finished, the double-row section steel inclined struts are pressed into a soil body at an angle of 10-45 degrees, and finally, ring beams and a top pressing plate are poured, so that the construction method piles and the inclined double-row section steel struts form a whole to form an inclined double-row all-steel enclosure system. Compared with the prior art, the invention has the advantages of fast forming speed of the enclosure structure, simple construction process, reduction of construction period, cost saving and the like.

Description

Oblique double-row all-steel enclosure system
Technical Field
The invention relates to an oblique double-row all-steel enclosure system which is suitable for enclosure of foundation pits with more than one layer and other soil retaining structures.
Background
At present, the form of an enclosure structure used in a deep and large foundation pit (more than one layer) supporting technology generally adopts pile arrangement and pit internal support.
The pile row and pit inner support is composed of a horizontal support beam and a vertical support upright post, and is mainly arranged in a ring shape, a grid shape, a butt support or an angle support. The advantages are wide range of soil and soil layer, little influence to surrounding environment, and large quantity of vertical columns and horizontal supports in the pit, and greatly increased cost. The inner support seriously influences the earth excavation, the construction period is prolonged, and the construction safety is difficult to guarantee.
The existing inclined support enclosure mostly adopts inclined precast piles and front support grouting steel pipes, and is mostly suitable for one-layer and other shallow foundation pit enclosures.
In summary, the existing foundation pit support system has no support mode which is economical, safe, energy-saving, environment-friendly and rapid in construction under the condition that an inner support is not arranged for a deep and large foundation pit (more than one layer).
The invention has the advantages of fast forming speed of the enclosure structure, simple construction process, reduced construction period, saved construction cost and the like.
Disclosure of Invention
The invention aims to provide an oblique double-row all-steel enclosure system according to the defects of the existing enclosure system, and the structure system comprises a ring beam 1, an outer oblique support 2, an inner oblique support 3, a section steel waist beam 4, an inserted section steel 5, a stirring pile 6, a top pressing plate 7 and a section steel connecting rod 8.
The purpose of the invention is realized by the following technical scheme:
a slant double-row all-steel enclosure system comprises ring beams 1, outer slant supports 2, inner slant supports 3, section steel waist beams 4, inserted section steel 5, stirring piles 6, a top pressing plate 7 and section steel connecting rods 8.
The horizontal distance of the inclined support is more than or equal to 1.5 m.
The angle of the oblique support inserted into the soil body is 10-45 degrees.
The models of the oblique supporting section steel are H400 x 400, H500 x 300 and H700 x 300.
The ring beam is provided with a convex top pressing plate at the inclined supporting position.
The distance between the most edge of the top pressing plate and the edge of the profile steel is more than or equal to 0.5 m.
The section steel waist rail is connected with the section steel in the construction method pile into a whole in a welding mode.
The section steel waist rail, the section steel connecting rod and the double rows of inclined supports are spliced in a welding mode.
Drawings
FIG. 1 is a schematic view of an oblique double-row all-steel building envelope system;
as shown in the figure: 8-shaped steel connecting rod for 1 ring beam, 2 outer oblique supports, 3 inner oblique supports, 4-shaped steel waist beam, 5 inner inserted-shaped steel 6 mixing piles, 7 coping plate and the like
FIG. 2 is a plan layout of the enclosure
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The implementation mode and the specific operation steps of the invention are as follows:
as shown in figure 1, the inclined double-row all-steel enclosure system comprises ring beams 1, outer side inclined supports 2, inner side inclined supports 3, section steel waist beams 4, inserted section steel 5, stirring piles 6, a top pressing plate 7 and section steel connecting rods 8.
1) Leveling a construction site, and releasing a real sample according to a construction drawing;
2) the outer side oblique supports 2, the inner side oblique supports 3, the section steel waist beams 4, the inserted section steel 5 and the section steel connecting rods 8 are stacked to positions convenient for construction after entering a field for acceptance;
3) constructing a pile in the construction method at a position where the side line of the foundation pit retreats for a certain distance;
4) inserting the inner and outer side oblique supporting piles into the soil body within the angle range of 10-45 degrees by using a pile pressing machine of an oblique pile pressing according to specific design requirements;
5) pouring a top pressing ring beam 1 and a top pressing plate 7 to enable the inner and outer oblique supports 2 and 3 to form a whole with the construction method piles;
6) after the 5) middle pressing top ring beam 1 and the pressing top plate 7 reach the strength, earth is excavated to a layer of bottom or specified height in a layered mode, and the section steel waist beam 4, the inserted section steel 5, the section steel connecting rod 8, the inner oblique support 2 and the outer oblique support 3 are welded into a whole.
7) And after the oblique double-row all-steel enclosure system is formed, excavating a soil body in the foundation pit to the bottom of the foundation pit, and completing subsequent construction.

Claims (8)

1.一种斜向双排全钢围护体系，其特征在于，所述的斜向双排全钢围护体系包括圈梁、双排型钢斜撑、竖向工法桩、型钢腰梁、型钢连杆。工法桩施工完毕后，将双排型钢斜撑以一定角度压入土体中，最后浇筑圈梁，使工法桩和斜向双排型钢支撑成为一个整体，构成斜向双排全钢围护体系。1. an oblique double-row all-steel enclosure system, is characterized in that, described oblique double-row all-steel enclosure system comprises ring beam, double-row profiled steel diagonal bracing, vertical construction method pile, profiled steel waist beam, profiled steel link. After the construction of the construction method piles, the double-row section steel diagonal braces are pressed into the soil at a certain angle, and finally the ring beam is poured, so that the construction method piles and the inclined double-row section steel supports are integrated into a whole, forming an oblique double-row all-steel enclosure system. . 2.根据权利要求1所述的一种斜向双排全钢围护体系，其特征在于所述的双排型钢斜撑水平间距≥1.5m。2. An oblique double-row all-steel enclosure system according to claim 1, characterized in that the horizontal spacing of the double-row shaped steel diagonal braces is greater than or equal to 1.5m. 3.根据权利要求1所述的一种斜向双排全钢围护体系，其特征在于所述的双排型钢斜撑插入土体的角度为10°～45°。3 . The oblique double-row all-steel enclosure system according to claim 1 , wherein the angle at which the double-row shaped steel diagonal bracing is inserted into the soil is 10° to 45°. 4 . 4.根据权利要求1所述的一种斜向双排全钢围护体系，其所述斜向支撑型钢型号为H400*400、H500*300、H700*300。4 . The oblique double row all-steel enclosure system according to claim 1 , wherein the oblique support profiles are H400*400, H500*300, and H700*300. 5 . 5.根据权利要求1所述的一种斜向双排全钢围护体系，其特征在于所述的圈梁在双排斜向支撑处有凸出的压顶板。5 . The oblique double-row all-steel enclosure system according to claim 1 , wherein the ring beam has a protruding roof pressing plate at the double-row oblique support. 6 . 6.根据权利要求5所述的压顶板，其特征在于所述压顶板最边缘距离型钢边缘的距离≥0.5m。6 . The top plate according to claim 5 , wherein the distance between the most edge of the top plate and the edge of the profiled steel is ≥ 0.5m. 7 . 7.根据权利要求1所述的一种斜向双排全钢围护体系，其特征在于所述的型钢腰梁是跟工法桩内部的型钢通过焊接的形式连接为一体。7. An oblique double-row all-steel enclosure system according to claim 1, characterized in that the profiled steel waist beam is connected with the profiled steel inside the construction method pile by welding. 8.根据权利要求1所述的一种斜向双排全钢围护体系，其特征在于所述的型钢腰梁、型钢连杆以及双排型钢斜撑通过焊接方式进行拼接。8 . The oblique double-row all-steel enclosure system according to claim 1 , wherein the profiled steel waist beams, profiled steel connecting rods and double-row profiled steel diagonal braces are spliced by welding. 9 .
CN202111227406.XA 2021-10-21 2021-10-21 A diagonal double-row all-steel enclosure system Pending CN113818451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111227406.XA CN113818451A (en) 2021-10-21 2021-10-21 A diagonal double-row all-steel enclosure system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111227406.XA CN113818451A (en) 2021-10-21 2021-10-21 A diagonal double-row all-steel enclosure system

Publications (1)

Publication Number Publication Date
CN113818451A true CN113818451A (en) 2021-12-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115595986A (en) * 2022-11-23 2023-01-13 中国建筑第二工程局有限公司（Cn） A foundation pit enclosure structure and construction method
CN116335150A (en) * 2023-02-21 2023-06-27 上海市基础工程集团有限公司 Construction method of a self-stabilizing foundation pit support structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115595986A (en) * 2022-11-23 2023-01-13 中国建筑第二工程局有限公司（Cn） A foundation pit enclosure structure and construction method
CN116335150A (en) * 2023-02-21 2023-06-27 上海市基础工程集团有限公司 Construction method of a self-stabilizing foundation pit support structure
CN116335150B (en) * 2023-02-21 2026-01-06 上海市基础工程集团有限公司 A construction method for a self-stabilizing foundation pit support structure

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Application publication date: 20211221