CN101818495A - Construction method for retaining and protecting foundation excavation and supporting structure thereof - Google Patents
Construction method for retaining and protecting foundation excavation and supporting structure thereof Download PDFInfo
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- CN101818495A CN101818495A CN200910250029A CN200910250029A CN101818495A CN 101818495 A CN101818495 A CN 101818495A CN 200910250029 A CN200910250029 A CN 200910250029A CN 200910250029 A CN200910250029 A CN 200910250029A CN 101818495 A CN101818495 A CN 101818495A
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- cement
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Abstract
The invention discloses a construction method for retaining and protecting foundation excavation and a supporting structure thereof. The construction method comprises a cement-soil pile wall, and at least a row of ground anchors arranged on the cement-soil pile wall. The cement-soil pile wall is formed by a deep mixing method, a rotation dusting method and a compaction grouting method, and the ground anchors comprises anchored bars, soil nails, reinforced cement-soil anchor piles and rotation-dusting mixing anchor pile; and the supporting structure consists of the cement piles and the ground anchors. The construction method for retaining and protecting foundation excavation and the supporting structure have the advantages of low cost, quick construction, and no pollution.
Description
Technical field:
The invention belongs to industry and civilian construction foundation field.
Background technology:
In the foundation pit support construction of building, excavation pit will be made the underground support row of piles before excavation pit, so that can carry out supporting to the foundation pit side-wall soil body after foundation ditch digs at present.This routine techniques that the expansion system adopts mainly contains steel concrete diaphragm wall, boring row of piles etc., to reach the purpose of retaining soil.This supporting method and structural cost height, long in time limit have pollution to the city.And the present invention: a kind of job practices of pattern foundation pit supporting structure and supporting and protection structure thereof, cost is low, the duration is fast, pollution-free.
The content of invention:
Patent of the present invention is at first to perform cement-soil pile on the piling wall face of formation on ground, the rarest row's earth anchor, the novel soil body foundation pit supporting construction that cement earth pile metope layout earth anchor is formed.Cement earth pile Wall earth anchor forms foundation pit supporting construction, mainly is to finish by following steps:
1, a kind of job practices of pattern foundation pit supporting structure and supporting and protection structure thereof is characterized in that, this job practices comprises cement-soil pile.On cement-soil face piling wall, has row's earth anchor at least.
A) job practices that requires according to right 1 is characterized in that above-mentioned cement-soil row of piles, adopts deep mixing method, churning method, compaction grouting method to form.
B) job practices that requires according to right 1 is characterized in that above-mentioned earth anchor is anchor pole, soil nailing and reinforced cement earth anchoring pile and high-pressure rotary-spray anchor pole.
C) supporting and protection structure that requires according to right 1 is characterized in that above-mentioned supporting and protection structure, is made up of cement campshed wall and earth anchor.
The specific embodiment:
The specific embodiment of the invention is; At first decide the support wall position by designing requirement at the ground unwrapping wire, construction cement earth pile Wall on the support wall line of reserving on ground.On the piling wall limit that performs by the Wall limit earth anchor depth location of cutting the earth, on the metope that exposes, decide the anchor hole position, perform earth anchor by designing requirement diameter and length, to the locking of ready-made earth anchor upper beam, the designing requirement of root a tree name applies many row's earth anchors, following row's earth anchor construction is from multiple above-mentioned, and concrete accompanying drawings is as follows
Figure of description:
Fig. 1 supporting and protection structure sectional drawing:
1, at the bottom of ground 2, cement-soil pile 3, earth anchor 4, Anchor tools and waist rail 5, the foundation ditch 6, the soil body
Fig. 2 supporting and protection structure elevation:
1, wall 2, cement-soil pile 3, ground tackle and the waist rail 4 of the formation of surface water earth row of piles, the end, hole
Cement earth pile Wall shown in Fig. 1 becomes the supporting construction section with Di Mao Group
One at first, adopts deep mixing method, high-pressure rotary spraying method and compaction grouting method to make engaged earth campshed, stake engaged formation pattern foundation pit supporting structure face wall (water-stop curtain wall);
One only depends on that avris digs the required work face width of earth anchor construction, degree (pressing the design attitude degree of depth, width) deeply in the cement-soil Wall hole forming cement soil wall;
One at the work plane that digs out by putting earth anchor rig, slip casting facility;
One decides required of earth anchor construction excavating on the cement-soil pile of exposing;
One reserving anchor hole position construction earth anchor, forms soil nailing, anchor pole and cement-soil anchoring pile;
One at established earth anchor installation waist rail;
One installs the locking of anchor head ground tackle jack tension earth anchor on waist rail;
One when making lower floor's earth anchor sequence of steps from multiple above-mentioned.
Claims (4)
1. the job practices of a pattern foundation pit supporting structure and supporting and protection structure thereof is characterized in that, this job practices comprises cement-soil pile, have row's earth anchor on the cement-soil face wall at least.
2. the job practices that requires according to right 1 is characterized in that, above-mentioned cement-soil row of piles adopts deep mixing method, churning method, densification slurry method to form.
3. the job practices that requires according to right 1 is characterized in that above-mentioned earth anchor is anchor pole, soil nailing, reinforced cement earth anchoring pile and rotary jet stirring anchor pole.
4. the supporting and protection structure that requires according to right 1 is characterized in that above-mentioned supporting and protection structure, is made up of cement campshed and earth anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250029A CN101818495A (en) | 2009-12-02 | 2009-12-02 | Construction method for retaining and protecting foundation excavation and supporting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250029A CN101818495A (en) | 2009-12-02 | 2009-12-02 | Construction method for retaining and protecting foundation excavation and supporting structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101818495A true CN101818495A (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910250029A Pending CN101818495A (en) | 2009-12-02 | 2009-12-02 | Construction method for retaining and protecting foundation excavation and supporting structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818495A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383417A (en) * | 2011-09-28 | 2012-03-21 | 马文旭 | Combined framework pile |
| CN102505698A (en) * | 2011-10-12 | 2012-06-20 | 李宪奎 | Soil mass supporting structure and construction method thereof |
| CN103993604A (en) * | 2014-06-05 | 2014-08-20 | 中国建筑材料工业地质勘查中心广东总队 | Scattered piled anchor foundation pit supporting structure |
| CN107574835A (en) * | 2016-07-05 | 2018-01-12 | 辛德刚 | Soil cement soil nailing cob wall |
-
2009
- 2009-12-02 CN CN200910250029A patent/CN101818495A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383417A (en) * | 2011-09-28 | 2012-03-21 | 马文旭 | Combined framework pile |
| CN102383417B (en) * | 2011-09-28 | 2014-08-27 | 广州中煤江南基础工程公司 | Combined framework pile |
| CN102505698A (en) * | 2011-10-12 | 2012-06-20 | 李宪奎 | Soil mass supporting structure and construction method thereof |
| CN103993604A (en) * | 2014-06-05 | 2014-08-20 | 中国建筑材料工业地质勘查中心广东总队 | Scattered piled anchor foundation pit supporting structure |
| CN107574835A (en) * | 2016-07-05 | 2018-01-12 | 辛德刚 | Soil cement soil nailing cob wall |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100901 |