CN1872945A - Slurry forretaining wall in use for not excavating drilling - Google Patents
Slurry forretaining wall in use for not excavating drilling Download PDFInfo
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- CN1872945A CN1872945A CN 200610031905 CN200610031905A CN1872945A CN 1872945 A CN1872945 A CN 1872945A CN 200610031905 CN200610031905 CN 200610031905 CN 200610031905 A CN200610031905 A CN 200610031905A CN 1872945 A CN1872945 A CN 1872945A
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Abstract
This invention discloses slurry for protecting the walls during nonexcavating drilling. The slurry comprises: water 100 parts, bentonite 3-10 parts, and slurry-treating agent 0.75-2.5 parts. When the bentonite is calcium soil, the slurry-treating agent comprises sodium carbonate, Na-CMC and biotreating agent, and the proportions are: calcium soil 5-10 parts, sodium carbonate 0.25-0.5 part, Na-CMC 0.25-1 part, and biotreating agent 0.25-1 part. When the bentonite is sodium soil, the slurry-treating agent comprises Na-CMC and biotreating agent, and the proportions are: sodium soil 3-8 parts, Na-CMC 0.3-0.6 part, and biotreating agent 0.6-1.5 parts. The biotreating agent is Marchilus pauhoi gum, and Na-CMC is medium viscosity sodium carboxymethylcellulose. The slurry can avoid the difficulties in drilling and expanding the holes, as well as hole caving and pipe sticking.
Description
Technical field
The present invention relates to a kind of mud, particularly relate to the mud that is used for retaining wall in a kind of non-excavation drilling technology.
Background technology
Trenchless technology (Trenchless Technology or No-Dig) is meant any technology and the method for surveying, check, repair, change and laying various subsurface utilities (pipeline and cable) under the condition of excavating earth surface not.Fixed (leading) is most widely used in the present trenchless technology to drilling technology, a kind of operating technique with fastest developing speed.During construction, drilling track (being generally arc) according to design, adopt the directional drilling technology pilot hole of a level of approximation of construction earlier, treat that the pilot hole drilling tool is after being exposed by the opposite side of penetrate thing, unload pilot guide bit and change large diameter reaming bit and diameter the pipeline installation for the treatment of less than reaming bit, carry out reverse reaming then, pipeline that simultaneously will be to be laid is drawn in boring.When whole drilling rods was pulled, pipe laying work was finished simultaneously.Sometimes according to the ability of rig with treat the diameter of pipeline installation, can carry out the pipeline of pulling back again after the reaming once or twice earlier specially.
Compare advantages such as no-excavation construction method has does not influence traffic, do not destroy environment, short construction period, integrated construction cost are low, obvious social benefit with the construction method of excavation.Can be widely used in road crossing, railway, buildings, river, and under conditions such as business district, protective belt, historic site, farm crop and vegetation protection district, supply water, laying, renewal and the reparation of pipeline such as coal gas, electric power, telecommunication, oil, Sweet natural gas.
Mud is decided (leading) is equivalent to human body in creeping into blood at non-excavation, is one of engineering key of success factor.It mainly contains following function in drilling process: (1) cleans boring, and landwaste carries and suspend; (2) cooling drill bit; (3) lubricated drilling tool and drill bit; (4) protection hole wall, especially when bad ground, the main function of mud is to safeguard hole wall.
Fixed (leading) is as follows to the work characteristics of drilling mud:
(1) degree of depth is the working order of normal temperature and pressure in the 30m of the face of land substantially;
(2) geological condition be mostly that leakiness easily collapses and the lateral aperture segment length and irregular, friction resistance is big;
(3) discharge capacity is little, and eyelet is big, and it is big to take the sand difficulty under the ultralow flow conditions;
(4) pass through mostly at river and dense waterway net region, very easily pollute.
Mud is the main type of creeping into washing fluid, and it is used for loose, broken, the creeping into of various unsettled bad grounds such as water sensitivity and solid rock stratum.Non-excavation under the bad ground condition fixed (leading) is to drilling construction, and mud has very important effect especially.At present mud has two kinds of base types: promptly be the water-based mud of dispersion medium with water and be the oil-base mud of dispersion medium with oil.Non-excavation drilling mud substantially all is to use water-based mud.
Most of mud are made up of clay, water and mud conditioner.Clay in the non-excavation drilling mud generally adopts wilkinite.Wilkinite is divided into two classes: a class is called calcium-base bentonite, the another kind of sodium bentonite that is called.The character of this two classes soil is distinguishing.The sodium bentonite slurries are compared with the calcium-base bentonite slurries with volume, and the former contains than the latter and Duos 15～20 times silicate layer as thin as a wafer.Because the existence of these very little and many silicate layers, the hole structure of the small-particle of montmorillonite just forms easily, and the swelling of slurries just increases, and the flowability that thixotroping is later and the static gelling that gets off, solidified nature all improve.Therefore, in non-excavation drilling construction, sodium bentonite is than calcium-base bentonite excellent property.
In order to improve mud property, improve drilling efficiency, in the trenchless engineering construction process, often add an amount of mud conditioner according to formation condition and reaming needs.Mud conditioner is of a great variety, generally can be divided into inorganic agent and organic agent.
At present, in non-excavation industry, because requirement of engineering during non-excavating construction, runs into bad grounds such as sand and quicksand through regular meeting.The biggest problem of facing of construction is pore-forming and reaming difficulty in this type of bad ground, and the generation often of phenomenons such as the hole that collapses, bit freezing sometimes even underground drilling accident takes place, brings the tremendous economic loss to unit in charge of construction.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of slurry forretaining wall in use for not excavating drilling of carrying out avoiding in the non-excavation drilling construction phenomenons such as pore-forming and reaming difficulty, the hole that collapses, bit freezing to take place at bad grounds such as sand and quicksands of being used for.
In order to solve the problems of the technologies described above, slurry forretaining wall in use for not excavating drilling provided by the invention, it is the mud of being made by the following weight proportion raw material:
Water 100
Wilkinite 3～10
Mud conditioner 0.75～2.5
It is the mud of being made by the following weight proportion raw material:
Water 100
Calcium soil 5～10
Soda ash 0.25～0.5
Na-CMC 0.25～1
Biological treatment agent 0.25～1.
It is the mud of being made by the following weight proportion raw material:
Water 100
Sodium soil 3～8
Na-CMC 0.3～0.6
Biological treatment agent 0.6～1.5.
Described biological treatment agent is a vegetable jelly, and this vegetable jelly is formed through section, drying, pulverizing, sorting by wild plant bubble flower nanmu.
Adopt the mud of technique scheme prescription, using method is identical with traditional mud using method, all is by the mud pumping, is delivered to the work stratum by drilling rod again, and is easy to use.Have following characteristics and advantage:
(1) by this prescription join mud have high viscosity, low fluid loss, characteristics that rheological characteristics is good, can satisfy the performance requriements of sand and quicksand stratum mud off;
(2) this prescription adds the pure-natural biological treatment agent, reduces the dosage of pure chemistry treatment agent in the past, protects environment to greatest extent, has reduced the pollution to waters in the construction area; The mud that adds after the vegetable jelly has good rheological, help hole wall stable with carry drilling cuttings, have tangible shutoff and stabilization for ravelly ground, quicksand stratum.Improved the inferior position of traditional mud at quicksand and ravelly ground leak stopping performance and pore-forming weak effect.Vegetable jelly is a natural product, non-environmental-pollution source, environmental protection.Have good viscosifying action simultaneously, help the sandinteeter cobble, clean boring, protect hole wall.
(3) fill up the blank that domestic non-excavation industry sand and sand-pebble layer creep into special-purpose mud aspect, overcome mud off poor performance in the past, the shortcoming that cost is high;
(4) can be in the non-excavating construction under the complex geological condition, for unit in charge of construction improves drilling efficiency, reduces construction risk, shortens construction period, creates more multiple-effect benefit.
In sum, the present invention is a kind of slurry forretaining wall in use for not excavating drilling of carrying out avoiding in the non-excavation drilling construction phenomenons such as pore-forming and reaming difficulty, the hole that collapses, bit freezing to take place at bad grounds such as sand and quicksands of being used for.
Embodiment
Below in conjunction with implementing concrete mode the present invention is described in further detail.
Embodiment 1:
Add 6kg calcium soil+0.3kg soda ash+0.3kgNa-CMC (medium viscosity sodium carboxymethyl-cellulose)+0.3kg wild plant bubble flower nanmu vegetable jelly in the 100kg water.This prescription once crept into the use that experimentizes in the piping work in mansion, Changsha Hunan Lu Xiangfu Qu Yuanfei excavation guiding, proved to play certain retaining wall effect in sand and the construction of quicksand stratum, played stable hole wall, the effect of cooling drill bit and drilling tool.
It is as follows to record its index performance:
1. viscosity: T=28s;
2. proportion: ρ=1.05g/cm
3
3. 30min fluid loss: B=16ml;
4. pH value: PH=9;
5. colloidity: 100%;
6. rheological characteristics (six rotating speed rotary viscosity measuring values are provided), see attached list 1:
Table 1 calcium soil six rotating speed rotary viscosity measuring values
| Φ600 | Φ300 | 200 | Φ100 | Φ6 | Φ3 | Gel，mg/cm 2 | |
| 10s | 10min | ||||||
| 25 | 12 | 10 | 6 | 3 | 2 | 1 | 2 |
Embodiment 2:
Add 5kg sodium soil+0.4kgNa-CMC (medium viscosity sodium carboxymethyl-cellulose)+1kg wild plant bubble flower nanmu vegetable jelly in the 100kg water.This prescription has higher viscosity, can play good retaining wall effect, improves sand and quicksand stratum construction situation.Experiment is used in the trenchless pipelaying engineering of Changsha Wuyi Road, has played crucial effects for finishing smoothly of this project.
It is as follows to record its index performance:
1. viscosity: T=35s;
2. proportion: ρ=1.035g/cm
3
3. 30min fluid loss: B=12.5ml (measured value);
4. pH value: PH=8;
5. colloidity: 100%;
6. rheological characteristics (six rotating speed rotary viscosity measuring values are provided) sees attached list 2:
Table 2 sodium soil six rotating speed rotary viscosity measuring values
| Φ600 | 300 | Φ200 | Φ100 | Φ6 | Φ3 | Gel，mg/cm 2 | |
| 10s | 10min | ||||||
| 30 | 16 | 13 | 9 | 5 | 4 | 5 | 15 |
Embodiment 3:
Add 5kg calcium soil+0.25kg soda ash+0.25kg Na-CMC+0.25kg wild plant bubble flower nanmu vegetable jelly in the 100kg water.This prescription has good mobility and certain viscosity, can play the retaining wall effect in sand and the construction of quicksand stratum, and the effect of cooling off drill bit and drilling tool, reducing friction resistance is arranged.
Embodiment 4:
Add 10kg calcium soil+0.5kg soda ash+1kg Na-CMC+1kg wild plant bubble flower nanmu vegetable jelly in the 100kg water.This prescription has high viscosity, high-density and low fluid loss, and the characteristics that flowing property weakens can play good retaining wall effect in sand, quicksand and the construction of ovum gravel stratum, have very significantly retaining wall effect for the non-excavation retaining wall of ravelly ground.
Embodiment 5:
Add 8kg calcium soil+0.4kg soda ash+0.25kg Na-CMC+0.25kg wild plant bubble flower nanmu vegetable jelly in the 100kg water.This prescription has viscosity higher and density, and has the advantage of low fluid loss, good flowing properties, has better effects for sand and quicksand stratum non-excavating construction.
Embodiment 6:
Add 3kg sodium soil+0.3kgNa-CMC+1kg wild plant bubble flower nanmu vegetable jelly in the 100kg water.This prescription has the characteristics of high viscosity, low fluid loss, good flowing properties, can play good retaining wall effect at sand and quicksand stratum.
Embodiment 7:
Add 8kg sodium soil+0.6kgNa-CMC+1.5kg wild plant bubble flower nanmu vegetable jelly in the 100kg water.This prescription has high viscosity, high-density and low fluid loss, and the characteristics that flowing property weakens can play good retaining wall effect in sand, quicksand and the construction of ovum gravel stratum, have very significantly retaining wall effect for the non-excavation retaining wall of ravelly ground.
Embodiment 8:
Add 3kg sodium soil+0.4kgNa-CMC+0.6kg wild plant bubble flower nanmu vegetable jelly in the 100kg water.This prescription has medium viscosity, middle fluid loss, low density, good flowing property, can play certain retaining wall effect at sand and quicksand stratum.
Na-CMC adopts the sodium carboxymethyl-cellulose of medium viscosity in this patent, and biological treatment agent is a wild plant bubble flower nanmu vegetable jelly, these two kinds of all stock in hand on market of product.
Claims (5)
1, a kind of slurry forretaining wall in use for not excavating drilling, it is the mud of being made by the following weight proportion raw material:
Water 100
Wilkinite 3～10
Mud conditioner 0.75～2.5.
2, slurry forretaining wall in use for not excavating drilling according to claim 1 is characterized in that: described wilkinite is a calcium soil, and described mud conditioner is soda ash, Na-CMC and biological treatment agent, and its weight proportion is:
Calcium soil 5～10
Soda ash 0.25～0.5
Na-CMC 0.25～1
Biological treatment agent 0.25～1.
3, slurry forretaining wall in use for not excavating drilling according to claim 1 is characterized in that: described wilkinite is a sodium soil, and described mud conditioner is Na-CMC and biological treatment agent, and its weight proportion is:
Sodium soil 3～8
Na-CMC 0.3～0.6
Biological treatment agent 0.6～1.5.
4, according to claim 2 or 3 described slurry forretaining wall in use for not excavating drilling, it is characterized in that: described biological treatment agent is a wild plant bubble flower nanmu vegetable jelly.
5, according to claim 2 or 3 described slurry forretaining wall in use for not excavating drilling, it is characterized in that: described Na-CMC is the medium viscosity sodium carboxymethyl-cellulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031905 CN1872945A (en) | 2006-06-30 | 2006-06-30 | Slurry forretaining wall in use for not excavating drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031905 CN1872945A (en) | 2006-06-30 | 2006-06-30 | Slurry forretaining wall in use for not excavating drilling |
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| CN1872945A true CN1872945A (en) | 2006-12-06 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492600B (en) * | 2008-11-19 | 2011-02-16 | 陈清安 | Shielding diverting agent for drilling fluids |
| CN102515642A (en) * | 2011-12-09 | 2012-06-27 | 中国建筑西南勘察设计研究院有限公司 | Formula of slurry with relatively high viscosity |
| CN102718442A (en) * | 2012-05-22 | 2012-10-10 | 利越集团有限公司 | Drill filling pile slurry |
| CN103087694A (en) * | 2011-11-03 | 2013-05-08 | 中国石油天然气集团公司 | Minute soft granule oil-soluble temporary plugging agent |
| CN103232196A (en) * | 2013-04-24 | 2013-08-07 | 中交一公局第三工程有限公司 | Thixotropic slurry anti-drag material for pipe jacking and preparation method thereof |
| CN103539432A (en) * | 2013-11-01 | 2014-01-29 | 浙江富浩管业有限公司 | Grouting liquid for trenchless construction and formula, preparation method and construction method thereof |
| CN106673523A (en) * | 2016-12-27 | 2017-05-17 | 中交第二航务工程局有限公司 | Protective mud applicable to pore forming by rotary drilling rig in geology of thick sand layer and preparation method of protective mud |
| CN109054783A (en) * | 2018-09-21 | 2018-12-21 | 无锡地铁集团有限公司 | A kind of pressure-bearing layer of sand pile pulling slurry coat method and preparation method thereof |
| CN111675510A (en) * | 2020-05-28 | 2020-09-18 | 浙江土工岩土科技有限公司 | Slurry for construction of pebble and boulder strata |
| US11095101B2 (en) | 2016-09-06 | 2021-08-17 | Quanta Associates, L.P. | Repurposing pipeline for electrical cable |
| CN116891731A (en) * | 2023-07-18 | 2023-10-17 | 核工业二八0研究所 | Formula of wall protection slurry for loose complex rock formation drilling |
-
2006
- 2006-06-30 CN CN 200610031905 patent/CN1872945A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492600B (en) * | 2008-11-19 | 2011-02-16 | 陈清安 | Shielding diverting agent for drilling fluids |
| CN103087694A (en) * | 2011-11-03 | 2013-05-08 | 中国石油天然气集团公司 | Minute soft granule oil-soluble temporary plugging agent |
| CN102515642A (en) * | 2011-12-09 | 2012-06-27 | 中国建筑西南勘察设计研究院有限公司 | Formula of slurry with relatively high viscosity |
| CN102515642B (en) * | 2011-12-09 | 2016-08-03 | 中国建筑西南勘察设计研究院有限公司 | A kind of mud prescription with stronger viscosity |
| CN102718442A (en) * | 2012-05-22 | 2012-10-10 | 利越集团有限公司 | Drill filling pile slurry |
| CN103232196B (en) * | 2013-04-24 | 2014-12-24 | 中交第一公路工程局有限公司 | Thixotropic slurry anti-drag material for pipe jacking and preparation method thereof |
| CN103232196A (en) * | 2013-04-24 | 2013-08-07 | 中交一公局第三工程有限公司 | Thixotropic slurry anti-drag material for pipe jacking and preparation method thereof |
| CN103539432A (en) * | 2013-11-01 | 2014-01-29 | 浙江富浩管业有限公司 | Grouting liquid for trenchless construction and formula, preparation method and construction method thereof |
| CN103539432B (en) * | 2013-11-01 | 2015-11-04 | 甘肃先锋管道制造有限公司 | No-dig technique gap dragging construction method |
| US11095101B2 (en) | 2016-09-06 | 2021-08-17 | Quanta Associates, L.P. | Repurposing pipeline for electrical cable |
| US11095102B2 (en) | 2016-09-06 | 2021-08-17 | Quanta Associates, L.P. | Repurposing pipeline for electrical cable |
| CN106673523A (en) * | 2016-12-27 | 2017-05-17 | 中交第二航务工程局有限公司 | Protective mud applicable to pore forming by rotary drilling rig in geology of thick sand layer and preparation method of protective mud |
| CN109054783A (en) * | 2018-09-21 | 2018-12-21 | 无锡地铁集团有限公司 | A kind of pressure-bearing layer of sand pile pulling slurry coat method and preparation method thereof |
| CN111675510A (en) * | 2020-05-28 | 2020-09-18 | 浙江土工岩土科技有限公司 | Slurry for construction of pebble and boulder strata |
| CN116891731A (en) * | 2023-07-18 | 2023-10-17 | 核工业二八0研究所 | Formula of wall protection slurry for loose complex rock formation drilling |
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