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A double-row pile supporting structure capable of making full use of basement space and its construction method

A technology of support structure and construction method, which is applied in the direction of foundation structure engineering, excavation, construction, etc., can solve the problems of high rigidity of the cantilever double-row pile support structure, insufficient utilization of basement space, and inability to meet the deformation of the foundation pit, etc. To achieve the effect of increasing the available space, increasing the use, and controlling the displacement of the pile body

Active Publication Date: 2017-11-10
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Slope excavation, soil nail wall support, and pile anchor support require too much support space in the central urban area, and are often not available
For the foundation pit engineering with multi-layer basement, the cantilever single-row pile support structure cannot meet the deformation requirements of the foundation pit; the cantilever double-row pile support structure has high rigidity but limited adaptability to the depth; the ordinary row pile plus inner support support High structural cost, long construction period, and insufficient utilization of basement space
Therefore, the use of traditional support structures has certain limitations

Method used

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  • A double-row pile supporting structure capable of making full use of basement space and its construction method
  • A double-row pile supporting structure capable of making full use of basement space and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: as figure 1 As shown, a double-row pile support structure that can make full use of the basement space consists of a front row of piles 1, a rear row of piles 2, crown beams I3, crown beams II4, connecting beams I5, water-stop curtain piles 6, basement 7, Engineering pile 8, plain concrete 9, layered tamped filling 10, basement floor 12, basement floor 13, connecting beam Ⅱ 14; among them, the top of pile 1 in the front row is equipped with crown beam Ⅰ 3, and the pile in the back row The top of pile 2 is provided with crown beam II4, the pile tops of front row pile 1 and rear row pile 2 are connected by coupling beam I5, and water-stop curtain pile 6 is installed in the soil behind the back row pile 2 piles. Construct all engineering piles 8, and pour a connecting beam II14 on top of pile 1 in the front row after removal. Layer tamped fill soil 10, fill plain concrete 9 between the front row of piles 1 and the basement floor 13 of the negative second flo...

Embodiment 2

[0042] Embodiment 2: as figure 1 Shown, basically the same as embodiment 1, its difference:

[0043] A construction method for a double-row pile support structure capable of making full use of basement space, wherein the length of the front row of piles 1 can be designed to be greater than the length of the rear row of piles 2 .

Embodiment 3

[0044] Embodiment 3: as figure 1 Shown, basically the same as embodiment 1, its difference:

[0045] A double-row pile support structure that can make full use of the basement space, the pile bodies of the front row of piles 1 and the rear row of piles 2 are arranged in a "T"-shaped array and arranged at intervals.

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Abstract

The invention relates to a double-row pile support structure capable of making full use of basement space and a construction method thereof, belonging to the fields of building construction and house construction. In the present invention, the top of the front row of piles is provided with a crown beam I, and the pile top of the rear row of piles is provided with a crown beam II. For water-stop curtain piles, after the site is leveled, all engineering piles shall be constructed according to the design, and a connecting beam II shall be poured on the top of the piles in the front row after removal, and the connecting beam II and the basement floor of the negative first floor shall be integrally poured. Fill the layered rammed soil between the outer walls of the basement, and fill plain concrete between the front row of piles and the basement floor of the negative second floor. The present invention replaces double-row piles and single-row piles with equal stiffness by replacing the double-row piles with single-row piles, which can not only control the horizontal displacement of the supporting structure system, but also greatly reduce the Pit support costs; it is more economical in foundation pit projects with multi-storey basements.

Description

technical field [0001] The invention relates to a double-row pile support structure capable of making full use of basement space and a construction method thereof, belonging to the fields of building construction and house construction. Background technique [0002] With the acceleration of the urbanization process, the construction height of the buildings in the central urban area is getting higher and higher, and the basements of the buildings are developing deeper and larger, while the geological conditions are getting worse and worse, and the surrounding environment of the foundation pit project is becoming more and more complex. . There are less and less land resources available for foundation pit engineering in central urban areas, but how to maximize the use of existing land resources is the common goal of developers. At present, the support schemes commonly used in my country include: sloping excavation, soil nail wall support, pile anchor support, cement-soil gravi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04
Inventor 曹净刘玮辰赵党书刘甜
Owner KUNMING UNIV OF SCI & TECH
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