CN1696414A - Method for treating mattress for soil and stone in foundation combined soil with rock - Google Patents
Method for treating mattress for soil and stone in foundation combined soil with rock Download PDFInfo
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- CN1696414A CN1696414A CN 200510200367 CN200510200367A CN1696414A CN 1696414 A CN1696414 A CN 1696414A CN 200510200367 CN200510200367 CN 200510200367 CN 200510200367 A CN200510200367 A CN 200510200367A CN 1696414 A CN1696414 A CN 1696414A
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- mattress
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- bed pad
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses an earth and rock bed pad treatment method of earth rock combined ground base. It is characterized by that in the place contacted with rock under the ground base of building a bed pad is placed. Firstly, the earth layer with rock on the base rock surface is uniformly stirred, then levelled and compacted so as to form the invented bed pad whose thickness is 400mm-600mm, the ratio of earth and rock in the bed pad is 1:0.6-1, its water content is as follows: water content of simple clay is 20%-40% and water content of earth and rock bed pad is 10%-20%, and the back-fill compacted degree, namely ratio of compacted bed pad thickness and virtual laid thickness is 0.7-0.8.
Description
Technical field:
The present invention relates to the native rock combined foundation processing method of construction work.
Background technology:
In the construction project of mountain area, the foundation soil rock that usually runs into the place is combined, promptly ground in the plane the part be soil and the part be rock.For example, clint gathers and the ground of exposure is arranged, and just belongs to native rock combined foundation.The soil base can produce sedimentation and deformation under the effect of building load, the rock ground then can not be out of shape.For avoiding building differential settlement to occur, the position that need contact with rock on the basis adopts mattress to handle.
Native horsestone commonly used in the ground is done mattress, and requiring native horsestone medium stone content is 20%～30%; This native horsestone mattress has reached and has made the building lot effect of uniform.Place, a lot of mountain area is arranged, have native horsestone natively, and the ratio that wherein contains stone substantially exceeds 20%～30%, time-consuming if also prepare according to 20%～30% ratio, can strengthen construction costs.
Summary of the invention:
The objective of the invention is to: the method for treating mattress that proposes a kind of native rock combined foundation newly, utilize the natural soil horsestone that excavates out in the levelling of the land as far as possible, take certain method to make mattress, make it under design load, the settling amount of ground satisfies code requirement, saving of work and time reduces construction costs.
The present invention is achieved in that at first the native dirt band on basement rock surface (1) is turned evenly, goes up in basement rock surface (1) then and lays mattress (2); Mattress (2) comprises lower floor's mattress (3) and upper strata mattress (4), lay and carry out in two steps, the first step is carried out the laying of lower floor's mattress (3), lays evenly smooth, wait that the empty paving that reaches lower floor's mattress (3) promptly tamps, tamp the real paving of lower floor's mattress (3); Second step was carried out the laying of upper strata mattress (4), laid evenly smoothly, waited that the empty paving that reaches upper strata mattress (4) promptly tamps, and tamped to the real paving of upper strata mattress (4).
The thickness of mattress (2) is 400mm～600mm; Soil is 1: 0.45～1 with the ratio of stone in the mattress; Water content is: the water content of simple clay is 20%～40%, and soil is 10%～20% with the water content of stone bed pad; Rammer degree of filling out is that the thickness after the mattress compacting and the ratio of virtual resurfacing thickness are 0.7～0.8.
Mattress thickness need be definite with ratio and other factor of stone according to soil in the supporting capacity requirement that designs ground, permission settling amount, the mattress.
The invention has the beneficial effects as follows: make full use of the natural soil horsestone that excavates out in the levelling of the land, can guarantee that the settling amount of ground under design load satisfies code requirement, and saving of work and time, reduce construction costs.
Description of drawings:
Fig. 1 is a schematic diagram of the present invention.
Among the figure, 1. basement rock surface, 2. mattress, 3. lower floor's mattress, 4. upper strata mattress.
The specific embodiment:
Embodiments of the invention:
The position that contacts with rock on the basis is a laying mattress 2 above the basement rock surface 1; The material of mattress 2 is soil and the stone mixture on this project site, and soil is 1: 1 with the part by weight of stone, and the thickness of mattress 2 is 500mm; For making building lot even, before the laying, it need be turned evenly; Lay lower floor's mattress 3 earlier, lay smooth to lower floor's mattress 3 empty paving such as accompanying drawing in dotted line position, promptly tamp, tamp solid line position in the real paving of lower floor's mattress 3 such as the accompanying drawing, re-lay upper strata mattress 4, wait to lay smooth to upper strata mattress 4 empty paving such as accompanying drawing in dotted line position, tamp again, tamp solid line position in the real paving of upper strata mattress 4 such as the accompanying drawing, promptly reach the regulation requirement, the compacting degree of this moment is 0.74, and soil is 19.2% with the water content of stone bed pad.
The ground of this project is handled and is simplified, and expense greatly reduces, and saves nearly 400,000 yuan of engineering cost.
Claims (5)
1. the soil of a native rock combined foundation and stone bed pad processing method is characterized in that: at first the native dirt band on basement rock surface (1) is turned evenly, go up in basement rock surface (1) then and lay mattress (2); Mattress (2) comprises lower floor's mattress (3) and upper strata mattress (4), lay and carry out in two steps, the first step is carried out the laying of lower floor's mattress (3), lays evenly smooth, wait that the empty paving that reaches lower floor's mattress (3) promptly tamps, tamp the real paving of lower floor's mattress (3); Second step was carried out the laying of upper strata mattress (4), laid evenly smoothly, waited that the empty paving that reaches upper strata mattress (4) promptly tamps, and tamped to the real paving of upper strata mattress (4).
2. the soil of native rock combined foundation according to claim 1 and stone bed pad processing method is characterized in that: the thickness of mattress (2) is 300mm～500mm; Soil is 1: 0.45～1 with the ratio of stone in the mattress; Water content is: the water content of simple clay is 20%～40%, and soil is 10%～20% with the water content of stone bed pad; Rammer degree of filling out is that the thickness after the mattress compacting and the ratio of virtual resurfacing thickness are 0.7～0.8.
3. the soil of native rock combined foundation according to claim 2 and stone bed pad processing method is characterized in that: the thickness of mattress (2) is 500mm.
4. the soil of native rock combined foundation according to claim 2 and stone bed pad processing method is characterized in that: soil is 1: 1 with the ratio of stone in the mattress.
5. the soil of native rock combined foundation according to claim 1 and stone bed pad processing method is characterized in that: the compacting degree is 0.74.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510200367 CN1696414A (en) | 2005-07-01 | 2005-07-01 | Method for treating mattress for soil and stone in foundation combined soil with rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510200367 CN1696414A (en) | 2005-07-01 | 2005-07-01 | Method for treating mattress for soil and stone in foundation combined soil with rock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1696414A true CN1696414A (en) | 2005-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510200367 Pending CN1696414A (en) | 2005-07-01 | 2005-07-01 | Method for treating mattress for soil and stone in foundation combined soil with rock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1696414A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952921B (en) * | 2006-05-22 | 2010-08-11 | 黄广军 | A determination method of anticipated settlement in ground base |
| CN104532819A (en) * | 2014-12-18 | 2015-04-22 | 重庆大学 | Stress control type reinforcement enclosure structure and foundation treatment construction method thereof |
-
2005
- 2005-07-01 CN CN 200510200367 patent/CN1696414A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952921B (en) * | 2006-05-22 | 2010-08-11 | 黄广军 | A determination method of anticipated settlement in ground base |
| CN104532819A (en) * | 2014-12-18 | 2015-04-22 | 重庆大学 | Stress control type reinforcement enclosure structure and foundation treatment construction method thereof |
| CN104532819B (en) * | 2014-12-18 | 2016-05-25 | 重庆大学 | A kind of Stress Control formula reinforcement inclusion texture and foundation treatment construction method thereof |
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