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A Stress Controlled Reinforced Inclusion Structure and Its Ground Treatment Construction Method

A technology of stress control and inclusions, applied in infrastructure engineering, construction, soil protection, etc., can solve the problems of high construction technology, difficulty and stability requirements, limited application range, long construction period, etc., and achieve simple and fast construction , low cost and less excavation

Active Publication Date: 2016-05-25
CHONGQING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used foundation treatment methods are mainly summarized into two categories: one is for the soil foundation, using pile foundations, partial deep excavation, or beams, slabs, and arches to deal with the relatively weak soil parts with high compressibility. The treatment method generally costs more, has a large amount of excavation, and has a long construction period; the other is for the rocky foundation part, using the mattress method to treat the rocky foundation with low compressibility, but this method can only be used for the soil part If the bearing capacity is sufficient, and this method needs to chisel out the rock to be treated, the construction technology, difficulty and stability requirements are higher, so its application range is also subject to many restrictions

Method used

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  • A Stress Controlled Reinforced Inclusion Structure and Its Ground Treatment Construction Method
  • A Stress Controlled Reinforced Inclusion Structure and Its Ground Treatment Construction Method
  • A Stress Controlled Reinforced Inclusion Structure and Its Ground Treatment Construction Method

Examples

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Effect test

Embodiment 1

[0035] Example 1: A stress-controlled reinforced inclusion structure, comprising at least one layer of geotechnical mat and a stress application device; the geotechnical mat includes a geogrid 1, a geotechnical non-woven fabric and a filler from the outside to the inside, and the geotechnical non-woven fabric is arranged on the geogrid On the inner side of grid 1, the filler is placed in the geotextile non-woven fabric; the filler can be waste soil on site or purchased soil.

[0036] Stress applying device comprises upper and lower branch pressure plate 21,22 and is arranged between upper and lower branch pressure plate 21,22 and is used for the tension member that upper and lower branch pressure plate 21,22 is tensioned, and upper branch pressure plate 21 is arranged on On the upper surface of the geotechnical pad, the lower support plate 22 is arranged on the lower surface of the geotechnical pad. Under the action of the tension member, the upper supporting plate 21 and th...

Embodiment 2

[0044] Example 2: A construction method for foundation treatment, using the stress-controlled reinforced inclusion structure described in Embodiment 1, specifically comprising the following steps:

[0045] 1) First place the lower support plate 22 in the leveled construction site, and connect the lower support plate 22, the lower connecting rod 4, the spring 6 and the upper connecting rod 5 with bolts 3 from bottom to top;

[0046] 2) Pass the casing 7 through the upper connecting rod 5, the spring 6 and the lower connecting rod 4 sequentially from top to bottom;

[0047] 3) Lay the geogrid 1 between the lower support plate 22 and the casing 7, lay the geonon-woven fabric on the geogrid 1, and then backfill the multi-layer filler (soil filler) on the geonon-woven fabric, rolling Tamping, the thickness of each layer of filler (soil filler) is 20cm-60cm, construction from bottom to top layer by layer, until the designed thickness, connecting the edge of the laid geogrid 1 to f...

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Abstract

The invention relates to a stress-controlled reinforced inclusion structure and a foundation treatment construction method thereof. The stress-controlled reinforced inclusion structure includes at least one layer of geotechnical mat and a stress applying device; the geotechnical mat includes a geogrid from the outside to the inside , geotechnical non-woven fabrics and fillers, the geotechnical non-woven fabrics are laid on the inner side of the geogrid, the fillers are placed on the inner side of the geotechnical non-woven fabrics; The tension members between the upper and lower support plates are used to tighten; the upper support plate is set on the upper surface of the geotechnical pad, and the lower support plate is set on the lower surface of the geotechnical pad. Reinforced inclusions change the cross-sectional mechanical properties of the entire reinforced inclusion by actively applying stress on the outer reinforcement through the tensile stress exerted by the tensile member, thereby improving its overall strength and improving its ability to resist deformation. The treatment method of reinforced soil foundation uses reinforced inclusions to improve the uneven settlement of buildings caused by the difference in rigidity and settlement characteristics of foundation soil.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a stress-controlled reinforced inclusion structure and a foundation treatment construction method thereof. Background technique [0002] Soil-rock composite foundation is a typical building and construction site in mountainous areas, and plays an important role in mountainous construction. If buildings are directly built on typical buildings and construction sites in mountainous areas such as soil-rock combination, due to the inhomogeneity of the soil-rock combination foundation, it often causes two problems of uneven settlement and poor stability of the foundation under the building or structure. In addition, in some cases, when there are existing underground structures (such as culverts, etc.) under the foundations of buildings, structures, and road subgrades, due to the inconsistency of the rigidity and settlement characteristics of the existing underground structures with the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/00
CPCE02D3/00E02D2250/0046E02D2600/20
Inventor 卢谅王宗建刘汉龙丁选明
Owner CHONGQING UNIV