CN103883332B - Thin silt reinforcement means and device - Google Patents
Thin silt reinforcement means and device Download PDFInfo
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- CN103883332B CN103883332B CN201410072069.5A CN201410072069A CN103883332B CN 103883332 B CN103883332 B CN 103883332B CN 201410072069 A CN201410072069 A CN 201410072069A CN 103883332 B CN103883332 B CN 103883332B
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- thin silt
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Abstract
The present invention relates to thin silt reinforcement means and device, it is adaptable to reinforce in underground engineering construction and run into thin silt.The present invention uses high-pressure-double-liquid cement jet rotary-cut thin silt, the Extra-fine sand that biliquid cement produces with its rotary-cut thin silt to be frozen into reinforcing body with reinforcing fine sand stratum.Thin silt reinforcement means of the present invention utilizes high-pressure-double-liquid cement jet to cut thin silt, the Extra-fine sand after cutting and biliquid cement rapid solidification, forms reinforcing body, have good reinforcement effect to thin silt after hardening.Thin silt bracing means of the present invention can effectively implement the thin silt reinforcement means of the present invention, and has the advantages such as volume little, simple to operate, easy construction, beneficially onsite moving.
Description
Technical field
The present invention relates to thin silt reinforcement means and device, it is adaptable to reinforce in underground engineering construction and meet
To thin silt.
Background technology
In the construction of underground engineering construction such as urban subway tunnel, it is commonly encountered rich water fine sand layer, due to powder
Fine sand formation stability is poor, and excavation easily causes the accidents such as landslide, also can cause the loss of subsoil water simultaneously,
Economy and ecology all be will result in impact.Pass through thin silt strengthening construction difficulty to have become and affect subway
The important outstanding problem of building security, and reinforce problem still without obtaining well currently for fine sand layer
Solve, be also formed without the thin silt reinforcement means of effect, cause cave in accident during subway work
Take place frequently.
Summary of the invention
The technical problem that the present invention solves is exactly to propose the reinforcing side of a kind of effective thin silt
Method.
Another technical problem that the present invention solves is exactly, and proposes a kind of dress reinforced for thin silt
Put.
In order to solve the problems referred to above, the present invention provides a kind of thin silt reinforcement means, comprising:
Step 1, in thin silt bore reinforced hole；
Step 2, in described reinforced hole, from the inside to the outside use high-pressure-double-liquid cement jet rotary-cut Extra-fine sand
Stratum；
The Extra-fine sand that biliquid cement in step 3, step 2 produces with its rotary-cut thin silt is frozen into
Reinforcing body.
Further, the degree of depth of described reinforced hole is 3 meters to 5 meters.
Further, the rotary-cut radius of described high-pressure-double-liquid cement jet rotary-cut thin silt be 0.2 meter extremely
0.4 meter.
Further, the rotary-cut radius of described high-pressure-double-liquid cement jet rotary-cut thin silt is 0.3 meter.
Further, the abrasive material cement in described biliquid cement is 1:0.5 with the volume ratio of waterglass.
In order to solve the problems referred to above, the present invention also provides for a kind of thin silt bracing means, comprising:
Pull bar, its head can stretch into reinforced hole；Pull back device, described pull bar be arranged on described in pull back on device, described
Described pull bar can be pulled back out described reinforced hole by device of pulling back；Rotary nozzle, it is installed on the head of described pull bar
Portion；High-pressure-double-liquid cement supply device, it connects with described rotary nozzle, is used for providing high-pressure-double-liquid water
Mud.
Further, also including speed regulator, it electrically connects with described device of pulling back, for regulation pull back described in draw
The speed of bar.
Further, also include fixed support, be used for supporting described pull bar.
Further, also include supply unit, its be used for described in pull back device and described high-pressure-double-liquid cement supply
Power to device.
Further, described high-pressure-double-liquid cement supply device is provided with piezometer.
Thin silt reinforcement means of the present invention utilizes high-pressure-double-liquid cement jet to cut thin silt, cuts
Extra-fine sand after cutting and biliquid cement rapid solidification, form reinforcing body, have thin silt very after hardening
Good reinforcement effect.
Thin silt bracing means of the present invention can effectively implement the thin silt reinforcing side of the present invention
Method, and there is the advantages such as volume little, simple to operate, easy construction, beneficially onsite moving.
Accompanying drawing explanation
Fig. 1 is thin silt bracing means structural representation in the embodiment of the present invention.
Wherein, 1-thin silt, 2-rotary nozzle, 3-pull bar, 4-fixed support, 5-speed regulator, 6-
Pull back device, 7-piezometer, 8-supply unit, 9-high-pressure-double-liquid cement supply device, 10-reinforced hole, 11-
Reinforcing body.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.It should be noted that
In the case of not conflicting, the embodiment in the application and the feature in embodiment can mutual combination in any.
The structure of embodiment of the present invention thin silt bracing means as it is shown in figure 1, it include pull bar 3,
Pull back device 6, rotary nozzle 2 and high-pressure-double-liquid cement supply device 9.
Pull bar 3 is supported by fixed support 4, and rotary nozzle 2 is arranged on the head of pull bar 3 by screw threads for fastening
Portion's (right-hand member of pull bar in figure).Pull bar 3 is arranged on pulls back on device 6, and device 6 of pulling back can drive when working
Pull bar 3 moves along a straight line, and device 6 of pulling back in the present embodiment is made up of a motor and drive mechanism.
High-pressure-double-liquid cement supply device 9 connects with rotary nozzle 2, is used for providing high-pressure-double-liquid cement,
The present embodiment mesohigh biliquid cement supply device 9 is made up of biliquid cement storage tank and force (forcing) pump.High
Pressure biliquid cement supply device 9 is provided with a piezometer 7, for monitoring the force value of high-pressure-double-liquid cement.
Use the method that the thin silt bracing means of above-described embodiment carries out thin silt reinforcing, bag
Include:
Step 1, as it is shown in figure 1, get out a reinforced hole 10 in thin silt, is reinforced according to reality
Demand, the degree of depth of this reinforced hole 10 is 3 meters to 5 meters.
Step 2, in reinforced hole 10, from the inside to the outside use high-pressure-double-liquid cement jet rotary-cut Extra-fine sand ground
Layer, specifically includes:
Step 2.1, pull bar 3 is stretched in reinforced hole 10, make the rotary nozzle 2 of pull bar 3 head as
The bottom of reinforced hole 10；
The abrasive material cement in biliquid cement in step 2.2, high-pressure-double-liquid cement supply device 9 and water glass
The volume ratio of glass is 1:0.5, starts high-pressure-double-liquid cement supply device 9, and high-pressure-double-liquid cement jet is from rotation
Turn in shower nozzle 2 and spray, and promote rotary nozzle 2 to rotate freely, rotary nozzle 2 high pressure sprayed is double
Liquid cement jet rotary-cut thin silt；
Step 2.3, start device 6 of pulling back and pull back pull bar 3, make pull bar 3 be gradually backed out reinforced hole 10,
During pull bar 3 exits reinforced hole 10, the high-pressure-double-liquid cement jet of rotary nozzle 2 ejection is by interior
To outer rotary-cut thin silt.
The Extra-fine sand that step 3, high-pressure-double-liquid cement jet rotary-cut thin silt produce is fast with biliquid cement
Rapid hardening is solid, forms a reinforcing body 11.
The method using the present invention, reasonably arranges the position of reinforced hole 10 in thin silt, and
Design suitable rotary-cut radius, firm churning organ timbering wall can be formed in thin silt, thin to powder
Flooding in Borehole has good reinforcement effect.
For satisfied reinforcing demand, the biliquid cement of high-pressure-double-liquid cement supply device 9 supply can be regulated
Pressure, with the rotary-cut radius of its rotary-cut thin silt.The present embodiment mesohigh biliquid cement jet rotary-cut
The rotary-cut radius of thin silt is 0.3 meter, and the shape of the reinforcing body 11 formed in such step 3 is basic
Close to the cylinder that a section radius is 0.3 meter.Certainly, rotary-cut radius is can to reinforce according to reality
Demand is adjusted, usually 0.2 meter to 0.4 meter.
Owing to thin silt is different along the situation of the axial each several part of reinforced hole, for reaching the rotary-cut half of requirement
Footpath, also there is difference the rotary-cut working time throughout.Therefore, the present embodiment is additionally provided with a speed regulator 5,
This speed regulator 5 is variable-frequency governor, and it is connected with device 6 of pulling back, and pulls back draw for regulation device 6 of pulling back
The speed of bar 3.
In the present embodiment, supply unit 8 give and pull back device 6 and high-pressure-double-liquid cement supply device 9 is powered.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for this
For the technical staff in field, the present invention can have various modifications and variations.All spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a thin silt bracing means, it is characterised in that including:
Pull bar, its head can stretch into reinforced hole；
Pull back device, described pull bar be arranged on described in pull back on device, described in device of pulling back described pull bar can be pulled back
Go out described reinforced hole；
Rotary nozzle, it is installed on the head of described pull bar；
High-pressure-double-liquid cement supply device, it connects with described rotary nozzle, is used for providing high-pressure-double-liquid water
Mud, operationally, described high-pressure-double-liquid cement jet sprays from described rotary nozzle, and promotes described
Rotary nozzle rotates freely.
2. thin silt bracing means as claimed in claim 1, it is characterised in that also include adjusting
Speed device, it electrically connects with described device of pulling back, for regulating the speed of described pull bar of pulling back.
3. thin silt bracing means as claimed in claim 1, it is characterised in that also include solid
Fixed rack, is used for supporting described pull bar.
4. thin silt bracing means as claimed in claim 1, it is characterised in that also include electricity
Source apparatus, its be used for described in pull back device and described high-pressure-double-liquid cement supply device is powered.
5. thin silt bracing means as claimed in claim 1, it is characterised in that described high pressure
Biliquid cement supply device is provided with piezometer.
6. one kind utilizes thin silt bracing means reinforcing fine sand as described in claim 1-5 is arbitrary
The method on stratum, it is characterised in that including:
Step 1, in thin silt bore reinforced hole；
Step 2, in described reinforced hole, from the inside to the outside use high-pressure-double-liquid cement jet rotary-cut Extra-fine sand
Stratum；
The Extra-fine sand that biliquid cement in step 3, step 2 produces with its rotary-cut thin silt is frozen into
Reinforcing body.
7. the method on reinforcing fine sand stratum as claimed in claim 6, it is characterised in that described in add
Gu the degree of depth in hole is 3 meters to 5 meters.
8. the method on reinforcing fine sand stratum as claimed in claim 7, it is characterised in that described height
The rotary-cut radius of pressure biliquid cement jet rotary-cut thin silt is 0.2 meter to 0.4 meter.
9. the method on reinforcing fine sand stratum as claimed in claim 8, it is characterised in that described height
The rotary-cut radius of pressure biliquid cement jet rotary-cut thin silt is 0.3 meter.
10. the method on reinforcing fine sand stratum as claimed in claim 6, it is characterised in that described double
Abrasive material cement in liquid cement is 1:0.5 with the volume ratio of waterglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072069.5A CN103883332B (en) | 2014-02-28 | 2014-02-28 | Thin silt reinforcement means and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072069.5A CN103883332B (en) | 2014-02-28 | 2014-02-28 | Thin silt reinforcement means and device |
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| CN103883332A CN103883332A (en) | 2014-06-25 |
| CN103883332B true CN103883332B (en) | 2016-08-17 |
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| JP2695141B2 (en) * | 1995-10-24 | 1997-12-24 | 株式会社エヌ、アイ、テイ | Lining hardened layer construction method |
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| CB03 | Change of inventor or designer information |
Inventor after: Lv Xiangfeng Inventor after: Yang Dongbo Inventor after: Jin Pu Inventor after: Niu Xiaokai Inventor after: Wang Fan Inventor before: Lv Xiangfeng Inventor before: Ye Ying Inventor before: Xia Chunlei |
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Effective date of registration: 20160205 Address after: 100037 Beijing, Xicheng District, one hundred million Zhuang Street, No. 3 Applicant after: Municipal Engineering Inst. of Beijing Applicant after: BEIJING NO.6 CONSTRUCTION ENGINEERING QUALITY TEST DEPARTMENT CO., LTD. Applicant after: Beijing MRB Science & Technology Development Co., Ltd. Address before: 100037 Beijing, Xicheng District, one hundred million Zhuang Street, No. 3 Applicant before: Municipal Engineering Inst. of Beijing |
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