CN108035359A - A kind of slope excavating method - Google Patents
A kind of slope excavating method Download PDFInfo
- Publication number
- CN108035359A CN108035359A CN201711439517.0A CN201711439517A CN108035359A CN 108035359 A CN108035359 A CN 108035359A CN 201711439517 A CN201711439517 A CN 201711439517A CN 108035359 A CN108035359 A CN 108035359A
- Authority
- CN
- China
- Prior art keywords
- slope
- mixing pile
- cement mixing
- ground
- excavate
- Prior art date
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of slope excavating method, it includes following steps：1）The ground that excavation is treated using cement mixing pile is handled；During the cement mixing pile driving construction, I-steel is inserted into the cement mixing pile near top of the slope；2）The ground and cement mixing pile are excavated together after the age for treating cement mixing pile, form side slope.The present invention can solve the problems, such as that the gradient that allows to excavate of soft soil foundation itself is relatively delayed, weak soil self-strength is improved using mixing pile processing method, greatly increasing it allows to excavate slope ratio under conditions of municipal construction narrow field is met.The present invention, in the case where ensureing the stability condition of Permanent Slope, greatly reduces the excavated volume of soft soil foundation, reduces engineering construction work surface, shorten the duration of a project compared to traditional slope excavating measure.The slope ratio that allows to excavate that the present invention breaches soft soil foundation limits, and can strengthen the flexibility of Side slope designing project, have universality.
Description
Technical field
The present invention relates to slope project technical field, more particularly to a kind of soft foundation slope excavating method.
Background technology
Soft foundation means what is be mainly made of mud, muck soil, rinse fill, miscellaneous fill or other high-compressibility soil layers
Ground.This soft soil foundation cohesive strength and internal friction angle are smaller, it is allowed to it is relatively more slow to excavate slope.
Cement mixed pile technology is referred to using cement material as curing agent（Flyash, pulverized limestone, cement powder or cement mortar）,
Using specific deep-layer stirring equipment, while drilling, vaporific powder or slurries are sprayed into weak soil, on the spot by curing agent with
Weak soil by the chemical reaction between the soil body and curing agent and physical reactions, ensures that foundation soil is hard in ground depths action of forced stirring
Structure reaches the reinforcing body of certain intensity, water stability and globality, to improve deformation modulus and foundation strength, so as to meet
A kind of Soil-cement method of foundation stabilization requirement.The application of cement mixing pile mainly has：, can in the softer soil of soil property
To mitigate the sedimentation of ground, strengthen the bearing capacity of soil；Strengthen the robustness of soil, prevent sliding phenomenon；For due to
Cave in and the cheat protuberance phenomenon of bottom of soil caused by excessively excavating can also take the technology of cement mixing pile to solve；Water
Waterproof construction of the mud mixing pile as underground, can prevent water storage in current infiltration and ground foundation pit；Strengthen lateral weak soil pair
The bearing capacity of foreign object, effectively solves the displacement problem of engineering pile.
Hydraulic engineering at present, traffic engineering, in civil engineering, mixing pile is mainly used in Soft Ground, enhancing ground
Base bearing capacity, or applied in construction pit supporting construction, in slope excavating field of engineering technology, have no using mixing pile.Mesh
In preceding urban water conservancy municipal works, limitation of the soft soil foundation because excavating place, it has to which design is excavated into its own opposite intensity
Steeper slope ratio, if not handling direct excavation, side slope itself is difficult to keep its stability.Therefore how soft soil foundation causes
It can excavate into steeper slope than as a great problem in urban water conservancy municipal works.
The content of the invention
The present invention is solution problems of the prior art, there is provided a kind of slope excavating method, concrete technical scheme is such as
Under.
A kind of slope excavating method, it includes following steps：
1）The ground that excavation is treated using cement mixing pile is handled；
2）The ground and cement mixing pile are excavated together after the age for treating cement mixing pile, form side slope.
Further, above-mentioned steps 1）Also have steps of before：The physical parameter of the ground is obtained, according to described
Physical parameter drafts intensity, diameter and the arrangement of cement mixing pile.
Further, the step 1）In, during the cement mixing pile driving construction, inserted in the cement mixing pile near top of the slope
Enter I-steel.The insertion of I-steel can further improve the shearing strength of soft soil foundation.
The beneficial effects of the invention are as follows：The present invention is under conditions of municipal construction narrow field is met, with can solving weak soil
The problem of allowing the excavation gradient relatively slow of base itself, weak soil self-strength is improved using mixing pile processing method, is greatly improved
It allows to excavate slope ratio.The present invention compares traditional slope excavating measure, in the case where ensureing the stability condition of Permanent Slope, significantly
Ground reduces the excavated volume of soft soil foundation, reduces engineering construction work surface, shortens the duration of a project.The present invention breaches weak soil
Ground allows to excavate slope than limitation, can strengthen the flexibility of Side slope designing project, have universality；In addition, ground only needs
Cement mixing pile processing is carried out before excavation, it is not necessary to handled when excavating so that excavation project is simple to operation.
Brief description of the drawings
Fig. 1 is the schematic diagram after soft foundation treatment by concrete stirring pole；
Fig. 2 is mixing pile horizontal layout schematic diagram；
Fig. 3 is edge slope structure schematic diagram after the completion of excavation.
In figure：1- cement mixing piles, 2- I-steel, 3- side slopes.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1-3, project under construction is to dig engineering positioned at Fuzhou City park lake body, and construction site limitation is larger.It is real
Apply side slope soil property and be essentially muck soil, it is allowed to excavate slope than 1:5, design excavates slope than 1:1.5.Ground to be excavated is obtained first
Relevant physical parameter, intensity, diameter and the arrangement of cement mixing pile 1 are specified according to relevant physical parameter（Using ability
Cement mixing pile design, the construction technology of domain routine）；According to the cement mixing pile constructing process of formulation on ground to be excavated
Make cement mixing pile 1；After the age for waiting cement mixing pile, the ground and cement mixing pile 1 are opened together
Dig, form side slope 3.Construction platform absolute altitude 4.3m, stake bottom -3 ~ -5m of absolute altitude.The project starts applying for mixing pile in April, 2017
Work, in May, 2017, mixing pile construction was completed, and in June, 2017 completes the construction of whole slope excavating.Construction period, whole side slope was each
Item monitoring data are normal.
Preferably, in above-mentioned cement mixing pile in construction process, I-steel 2 is inserted into the cement mixing pile near top of the slope；
It is further preferred that I-steel 2 is inserted into two rows of cement mixing piles farthest away from bottom of slope.The insertion of I-steel can be further
Ground improves the shearing strength of soft soil foundation, while does not interfere with the excavation project of side slope.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (3)
- A kind of 1. slope excavating method, it is characterised in that include following steps：1）The ground that excavation is treated using cement mixing pile is handled；2）The ground and cement mixing pile are excavated together after the age for treating cement mixing pile, form side slope.
- A kind of 2. slope excavating method according to claim 1, it is characterised in that above-mentioned steps 1）Also have before following Step：The physical parameter of the ground is obtained, intensity, diameter and the arrangement side of cement mixing pile are drafted according to the physical parameter Formula.
- A kind of 3. slope excavating method according to claim 1, it is characterised in that the step 1）In, the cement stirs When mixing pile driving construction, I-steel is inserted into the cement mixing pile near top of the slope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439517.0A CN108035359A (en) | 2017-12-27 | 2017-12-27 | A kind of slope excavating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439517.0A CN108035359A (en) | 2017-12-27 | 2017-12-27 | A kind of slope excavating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108035359A true CN108035359A (en) | 2018-05-15 |
Family
ID=62101442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711439517.0A Pending CN108035359A (en) | 2017-12-27 | 2017-12-27 | A kind of slope excavating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108035359A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826201A (en) * | 2019-02-01 | 2019-05-31 | 湖北省水利水电规划勘测设计院 | A kind of weak soil foundation pit step method for protecting support |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203755319U (en) * | 2014-03-13 | 2014-08-06 | 中国水电顾问集团成都勘测设计研究院有限公司 | Structure for preparing for fractured rock zone slope excavation |
| CN204825928U (en) * | 2015-08-17 | 2015-12-02 | 江苏万邦建设集团有限公司 | Excavation supporting |
| CN105155547A (en) * | 2015-06-18 | 2015-12-16 | 中铁十八局集团第二工程有限公司 | Construction method for deep foundation pit excavation on steep slope terrain |
| CN105350541A (en) * | 2015-09-11 | 2016-02-24 | 华能澜沧江水电股份有限公司 | Excavation method of highly-steep vertical toppling deformation side slope |
| CN106703044A (en) * | 2017-01-11 | 2017-05-24 | 北京建工土木工程有限公司 | Flow-plastic-shaped flushing and filling soil weak stratum sloping combination support method |
| CN106836186A (en) * | 2016-12-26 | 2017-06-13 | 福建港湾岩土工程集团有限公司 | A kind of construction technology of utilizing solidified earth from sludge |
| CN107268600A (en) * | 2017-08-01 | 2017-10-20 | 江苏燕宁建设工程有限公司 | Grouting strengthening method, pipe jacking construction method and application |
-
2017
- 2017-12-27 CN CN201711439517.0A patent/CN108035359A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203755319U (en) * | 2014-03-13 | 2014-08-06 | 中国水电顾问集团成都勘测设计研究院有限公司 | Structure for preparing for fractured rock zone slope excavation |
| CN105155547A (en) * | 2015-06-18 | 2015-12-16 | 中铁十八局集团第二工程有限公司 | Construction method for deep foundation pit excavation on steep slope terrain |
| CN204825928U (en) * | 2015-08-17 | 2015-12-02 | 江苏万邦建设集团有限公司 | Excavation supporting |
| CN105350541A (en) * | 2015-09-11 | 2016-02-24 | 华能澜沧江水电股份有限公司 | Excavation method of highly-steep vertical toppling deformation side slope |
| CN106836186A (en) * | 2016-12-26 | 2017-06-13 | 福建港湾岩土工程集团有限公司 | A kind of construction technology of utilizing solidified earth from sludge |
| CN106703044A (en) * | 2017-01-11 | 2017-05-24 | 北京建工土木工程有限公司 | Flow-plastic-shaped flushing and filling soil weak stratum sloping combination support method |
| CN107268600A (en) * | 2017-08-01 | 2017-10-20 | 江苏燕宁建设工程有限公司 | Grouting strengthening method, pipe jacking construction method and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826201A (en) * | 2019-02-01 | 2019-05-31 | 湖北省水利水电规划勘测设计院 | A kind of weak soil foundation pit step method for protecting support |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180515 |