CN206090581U - A cubic metre of earth backfill structure for in narrow and small space - Google Patents
A cubic metre of earth backfill structure for in narrow and small space Download PDFInfo
- Publication number
- CN206090581U CN206090581U CN201621006552.4U CN201621006552U CN206090581U CN 206090581 U CN206090581 U CN 206090581U CN 201621006552 U CN201621006552 U CN 201621006552U CN 206090581 U CN206090581 U CN 206090581U
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- CN
- China
- Prior art keywords
- filled layer
- foundation ditch
- slip casting
- earth
- small space
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- Legal status (The legal status 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 status listed.)
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a cubic metre of earth backfill structure for in narrow and small space, it includes the foundation ditch, the cushion cap of setting in the foundation ditch sets up the frame post on the cushion cap and fills the earth filled layer that returns in the foundation ditch, the upper surface that returns earth filled layer is equipped with the bed course, the through -hole has been seted up on the bed course, wear to establish to be used for the slip casting pipe of cement slurry water conservancy diversion in the through -hole, the slip casting pipe is worn to establish to return earth filled layer inside. The beneficial effects of the utility model are that, manage to returning the earth filled layer pouring cement thick liquid through slip casting, cement slurry solidifies the back and returns earth filled layer and condenses into an induration, has improved time earth filled layer's intensity, prevents back subsiding of earth filled layer.
Description
Technical field
The utility model is related to backfilling of earthwork technical field, and in particular to a kind of backfilling of earthwork in small space is tied
Structure.
Background technology
At present, during basement backfilling of earthwork, some backfill regions can be run into, its area is narrow and small, particularly the area
Spacing is less between the frame column of domain, and earthmoving machinery cannot be walked between frame column.And backfill the duration tightly, backfilling of earthwork settling amount
It is required that less, earthwork uniform settlement amount is required within 10mm, for preventing building settlement above from increasing, damage building.
Utility model content
For problems of the prior art, the utility model provides simple and reasonable one kind is used for narrow and small sky
Interior backfilling of earthwork structure.
The technical solution of the utility model is as follows：
A kind of backfilling of earthwork structure in small space, including foundation ditch, the cushion cap being arranged in foundation ditch, are arranged on and hold
Frame column on platform and the back fill course being filled in foundation ditch, it is characterised in that the upper surface of the back fill course is provided with bed course,
Through hole is offered on the bed course, is worn in the through hole for the Grouting Pipe of cement grout water conservancy diversion, the Grouting Pipe wear to
Inside back fill course.
Described a kind of backfilling of earthwork structure in small space, it is characterised in that the Grouting Pipe is uniformly arranged
Between frame column.
A kind of described backfilling of earthwork structure in small space, it is characterised in that the Grouting Pipe wear to return
Fill stratum 3/5-4/5 depths.
Described a kind of backfilling of earthwork structure in small space, it is characterised in that back fill course is using artificial pressure
It is real.
The beneficial effects of the utility model are, by Grouting Pipe to back fill course casting cement slurries, cement grout solidification
Condense into an induration with back fill course afterwards, improve the intensity of back fill course, prevent the sedimentation of back fill course.
Description of the drawings
Fig. 1 is the utility model structural representation；
In figure：1st, Grouting Pipe, 2, bed course, 3, cement grout, 4, frame column, 5, foundation ditch, 6, cushion cap.
Specific embodiment
The utility model is further described below in conjunction with Figure of description.
As shown in figure 1, a kind of backfilling of earthwork structure in small space, including Grouting Pipe 1, bed course 2, cement grout
3rd, frame column 4, foundation ditch 5 and cushion cap 6.Cushion cap 6 is arranged in foundation ditch 5, and frame column 4 is arranged on cushion cap 5, is provided with back in foundation ditch 5
Fill stratum, bed course 2 is arranged on the upper of back fill course, and through hole is offered on bed course 2, and Grouting Pipe 1 is interspersed in through hole until stretching into
Back fill course 3/5-4/5 depths, Grouting Pipe 1 is used for the water conservancy diversion of cement grout 3 so that cement grout 3 can reach backfill
In layer, with the induration that back fill course condenses into high intensity.
Before compaction grouting, grouting test is carried out using three hole slip casting methods, it is determined that every time the parameter of slip casting, i.e. slip casting are maximum
Pressure and maximum grouting amount.Slip casting can be carried out according to the numerical value of grouting test during actual slip casting.Slip casting can be at short notice
The intensity of ground is improved, shortens the soil body settlement stability time, control terrace differential settlement.And only need to simply press after backfilling of earthwork
It is real, without the need for by needing compacting before per layer of backfill during backfill, saving the time.Method slip casing by pressure technology is rammed by right using water
Grouting in soil mass is aiding in backfilling of earthwork.Only manual compaction is simply carried out with after the completion of i.e. during backfilling of earthwork, carry out bed course 2 and apply
Work.The intensity of bed course 2 reaches and carry out when can go up people cloth hole, punching, insert Grouting Pipe 1 and carry out compaction grouting.Filled out with cement grout 3
Particle voids are filled, the soil body is formed into the induration of an intensity height, stable chemical performance.
Work progress of the present utility model：
Choose representative position at the construction field (site), three positions for choosing bed course 2 are punchinged, cloth hole, the insertion note of Grouting Pipe 1
Slurry.Three pitchs of holes are equal, in equilateral triangle distribution.Cement grout 3 is flowed between three holes and three holes week by the Grouting Pipe 1 in three holes
In enclosing region soil layer space, cement grout 3 is combined into induration after solidifying with surrounding soil.Note can be terminated by result of the test
Minimum grouting pressure and maximum grouting amount during slurry.Because three Grouting Pipes 1 are in that equilateral triangle is symmetrical, and there is representative in the region
Property, therefore the slip casting situation of soil layer below whole bed course 2 will be seen that by the slip casting situation in the Triangle-Profile region.We
Minimum grouting pressure and maximum grouting amount are used as formal slip casting standard when will determine termination slip casting by three hole grouting tests.
In the foundation ditch, there is the structures such as frame column 4 and post lower cushion cap 6, it is in small distance between frame column 4, earthmoving machinery without
Method passes through.Through simple compacting after backfilling of earthwork, bed course 2 is laid, by the spacing arrangement hole position of regulation, punchinged, cloth hole, inserted
Enter Grouting Pipe 1.Then according to result of the test slip casting during three hole grouting tests, all hole grouting pressures and grouting amount are both needed to reach
Minimum grouting pressure and maximum grouting amount are required during above-mentioned three holes grouting test.It is empty that cement grout 3 enters underground layer by Grouting Pipe 1
Gap, an induration is formed after solidification by soil layer and cement grout 3.
Claims (3)
1. a kind of backfilling of earthwork structure in small space, including foundation ditch（5）, it is arranged on foundation ditch（5）Interior cushion cap（6）,
It is arranged on cushion cap（6）On frame column（4）And it is filled in foundation ditch（5）Interior back fill course, it is characterised in that the back fill course
Upper surface be provided with bed course（2）, the bed course（2）On offer through hole, wear for cement grout in the through hole（3）Water conservancy diversion
Grouting Pipe（1）, the Grouting Pipe（1）Wear to back fill course.
2. a kind of backfilling of earthwork structure in small space according to claim 1, it is characterised in that the slip casting
Pipe（1）It is uniformly arranged on frame column（4）Between.
3. a kind of backfilling of earthwork structure in small space according to claim 1, it is characterised in that the slip casting
Pipe（1）Wear to back fill course 3/5-4/5 depths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621006552.4U CN206090581U (en) | 2016-08-31 | 2016-08-31 | A cubic metre of earth backfill structure for in narrow and small space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621006552.4U CN206090581U (en) | 2016-08-31 | 2016-08-31 | A cubic metre of earth backfill structure for in narrow and small space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206090581U true CN206090581U (en) | 2017-04-12 |
Family
ID=58478371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621006552.4U Active CN206090581U (en) | 2016-08-31 | 2016-08-31 | A cubic metre of earth backfill structure for in narrow and small space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206090581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816046A (en) * | 2017-10-24 | 2018-03-20 | 中国建筑第八工程局有限公司 | Deep basal pit narrow zone backfills construction method |
-
2016
- 2016-08-31 CN CN201621006552.4U patent/CN206090581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816046A (en) * | 2017-10-24 | 2018-03-20 | 中国建筑第八工程局有限公司 | Deep basal pit narrow zone backfills construction method |
| CN107816046B (en) * | 2017-10-24 | 2019-09-06 | 中国建筑第八工程局有限公司 | Deep basal pit narrow zone backfills construction method |
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