CN104131564A - Manufacturing process of vibration and powder-spraying gravel pile and vibrating equipment of process - Google Patents
Manufacturing process of vibration and powder-spraying gravel pile and vibrating equipment of process Download PDFInfo
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- CN104131564A CN104131564A CN201310542130.3A CN201310542130A CN104131564A CN 104131564 A CN104131564 A CN 104131564A CN 201310542130 A CN201310542130 A CN 201310542130A CN 104131564 A CN104131564 A CN 104131564A
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Abstract
The invention provides a manufacturing process of a vibration and powder-spraying gravel pile. The process includes: vibrating equipment is started to drill a hole, the vibrating equipment is lifted at a set distance when the hole reaches the set depth, the vibrating equipment operates continuously while filler is added into the hole, the filler in the feeding pipe of the vibrating equipment falls into the hole through the pipe orifice in the lower end of the feeding pipe, and the vibrating equipment compact the filler in the hole. The filler comprises gravels and curing agent, wherein the curing agent is cement or the curing agent comprises cement and pulverized coal and/or building sand. The process has the advantages that power spraying material for integrally curing the filler can be sprayed into the hole while the filler are added into the hole, integrity, water stability and high strength of gravel curing are achieved, and high-quality foundation can be acquired efficiently, conveniently and cheaply. The invention further provides the vibrating equipment of the process.
Description
Technical field
The present invention relates to broken stone pile stake technical field processed, a kind of stake technique processed of vibro replacement stone column is provided, the stake technique processed that especially provides a kind of punching of shaking to dust broken stone pile.The present invention also provides the stake processed of using in this system stake technique to shake and rushes equipment.Background technology
In prior art, vibrosinking pile be utilize vibrating impacter on construction ground in pore-creating downwards to projected depth, because vibrating impacter forms the upright opening that is greater than the diameter of vibrating impacter own in pore-creating, therefore can insert building stones along the gap between vibrating impacter and shaped hole, building stones drop down onto behind hole bottom compacted by vibrating impacter, then vibrating impacter being promoted to certain altitude, to continue to insert building stones compacted, and this process is until construction ground repeatedly, and system stake finishes.Though the vibrosinking pile forming with this engineering method is through compacted, but the pile body that forms be only still the close-packed arrays of building stones, do not solidify and form integral type pile, the globality of this broken stone pile and water stability are not high, therefore, bearing capacity of single pile is relatively low, needs construction stake radix amount greatly to increase in identical construction area, Bearing Capacity of Composite Foundation is restricted, and construction cost is also relatively high.In prior art, also has a kind of engineering method, be Cement Spraying Pile Technology, utilize the materials such as cement, lime as the host of curing compound, by special Mixing Machine on the spot by the curing compound action of forced stirring of weak soil and slurries shape or powder shaped, be poured into again in a hole, make the ground of weak soil scleroma some strength.Powder spray piling is formed by cementitious material and undisturbed soil and natural water scleroma, wherein admixture coarse-fine aggregate not.Due to composition material, powder spray piling intensity is lower.Powder spray piling easily produces certain distortion when pressurized.Therefore, the applicable surface of this powder spray piling is narrower.In prior art, the material of system stake is put into mixer and stir, be then delivered in a hole, such engineering method also makes the equipment of system stake and operation all complicated.
Summary of the invention
The present invention's main purpose is to provide in a kind of vibrating and impacting construction of ballast pile rushes powder spray broken stone pile stake technique processed in conjunction with shaking of powder pressure spray process, make powder spray material and coarse-fine aggregate fully in conjunction with forming whole single pile, to improve the bearing capacity of single pile of pile foundation, reduce the stake quantity processed in unit area, reduce the cost of rigidity stake processed, increase the economic benefit of pile driving construction processed.
Another object of the present invention is to provide a kind of above-mentioned shaking to rush the stake processed of using in the technique of powder spray broken stone pile and shake and rush equipment.
The object of the invention is to be achieved through the following technical solutions:
Shake and rush a technique for powder spray broken stone pile, comprise the steps:
Step 1: start vibrating impacter, vibrating impacter starts to make a hole, and pore-creating reaches set depth on ground;
Step 2: upwards promote vibrating impacter to setpoint distance, vibrating impacter remains in operation, the inserts in vibrating impacter tremie pipe falls into hole from the tremie pipe mouth of pipe of lower end, and this inserts comprises rubble, also comprises curing compound, and it is: cement; Or, comprise cement, and flyash and/or building sand, this curing compound is that powder jet pipe is sent into by other conduit, bottom at vibrating impacter tremie pipe falls into a hole together with described rubble, in the presence of the conventional water spray of vibrating impacter, described curing compound mixes with rubble, and vibrating impacter is closely knit by the inserts of this setpoint distance in stake hole;
Repeating step 2, until filler is closely knit in whole hole, is dried and solidifies the powder spray broken stone pile that rear formation is solidified as a whole.
In inserts, the proportion optimization of curing compound is: 0.7～0.85m
3rubble in, add cement 400～450Kg, or, add 320～360Kg cement and 0.6m
3building sand, or, add 250～290Kg cement and 100kg flyash, or, add 250～290Kg cement, 100kg flyash and 0.55m
3building sand.
If according to volume ratio meter, the volume ratio of described curing compound and input rubble can be 10～40:100.
The input speed of inserts: 0.5～1m in work progress
3/ minute.It can be 1450Hz～3500Hz that the shaking of vibrating impacter rushed frequency.
Described curing compound is carried by pressure, is the bottom of gasification state in tremie pipe and mixes with rubble.The discharge pressure of described discharge tube can be 0.3～0.5Mpa.
Described rubble can be that the air pressure that rushes the pressure storehouse being connected with tremie pipe on equipment by shaking and provide constantly adds in tremie pipe.
The pressure of described feeding chamber can be 0.3～0.5Mpa.
The average diameter of rubble is generally 3～10 centimetres.
In step 2, carry out in compacting process, can close in vibrating impacter to its hole for water spraying water transport channel, the water of cooling vibrating impacter motor is returned in the water tank of ground by the return pipe wherein arranging.
A kind of stake processed of rushing powder spray broken stone pile of shaking of using in above-mentioned technique provided by the invention is shaken and is rushed equipment, comprises vibrating impacter and blanking device,
Described blanking device comprises tremie pipe, cable conduit and powder jet pipe,
The upper end of described tremie pipe connects feeding chamber and feeding device, and the lower end of this tremie pipe sets firmly described vibrating impacter;
Described cable conduit is arranged on inside or the outside of described tremie pipe, is fixedly connected with this tremie pipe, wherein establishes cable and is connected with described vibrating impacter;
It is inner that described powder jet pipe is arranged on described tremie pipe, and its upper end passes described tremie pipe and is connected with curing compound pressurized tank, and its lower port is arranged on the bottom of described tremie pipe.
The bottom of described tremie pipe has a flaring conical section, below this flaring conical section, connect a direct tube section, described vibrating impacter is placed in this flaring conical section below, a recline side tube-wall of direct tube section, vibrating impacter top arranges guide strip and makes tremie pipe passage at the opposite side of its underpart deflection direct tube section.
The lower end outlet of described discharge tube is arranged on the bottom of described flaring conical section and is advisable.
The lower end outlet of described discharge tube is higher than the distance of the lower end outlet of described inserts tremie pipe preferably: 2～4 meters.
Further, described blanking device can also comprise flow pipe and return pipe, and described flow pipe is fixedly connected with tremie pipe, and the upper port of this flow pipe connects water pump, and lower port connects described vibrating impacter for cooling vibrating impacter motor; Described return pipe one end connects described motor, and the other end connects storage tank, and during conversion valve close jet hole on the water injector when described vibrating impacter in, the water of cooling vibrating impacter motor returns to storage tank by described return pipe outflow vibrating impacter motor.
In addition, in pressure conveying situation, that the caliber of described discharge tube can be designed is thinner, is arranged on the inwall of described tremie pipe, do not affect the conveying of rubble, the caliber of this powder jet pipe and tremie pipe caliber relation can be: tremie pipe caliber: powder jet pipe caliber is 5～10 times.Such powder jet pipe can also make the discharge pressure that provides smaller when the discharge pressure that guarantees to dust is enough, thereby makes conveying equipment simpler and safer.At powder jet pipe, be arranged in tremie pipe and also can not exert an influence for the conveying of rubble in situation.
Further, in described feeding chamber, imported valve and outlet valve are set.
Described feeding chamber is pressure type feeding chamber preferably, which is provided with compressed air delivery device.
The pressure of described feeding chamber can be 0.3～0.5Mpa.
The pressure of described discharge tube can be 0.3～0.5Mpa.
Provided by the invention shaking rushed the stake technique processed of powder spray broken stone pile, putting into rubble in stake hole when, spraying into can be so that the curing compound that inserts is solidified as a whole, make broken stone pile scleroma there is globality, water stability and higher intensity, can efficiently facilitate and obtain at an easy rate high-quality ground.The stake processed of rushing powder spray broken stone pile of shaking provided by the invention is shaken and is rushed equipment, simple and compact for structure, and dusting when shaking punching provides Reliable guarantee.
Accompanying drawing explanation
Fig. 1 is that the stake processed of rushing powder spray broken stone pile of the shaking provided by the invention equipment that rushes that shakes is arranged on the schematic diagram of operation in a hole.
Fig. 2 is the shake structural representation of the equipment that rushes of the stake processed of rushing powder spray broken stone pile of shaking provided by the invention.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
The specific embodiment
Provided by the invention shaking rushed the technique of powder spray broken stone pile, and use stake processed is as depicted in figs. 1 and 2 shaken to rush in equipment and carried out.Shake and rush the stake equipment processed of powder spray broken stone pile, comprise vibrating impacter 1 and blanking device, blanking device comprises tremie pipe 2, cable conduit 7a and powder jet pipe 7b (seeing Fig. 3), and the upper end of tremie pipe 2 connects feeding chamber 5 and feeding device 6, and the lower end of tremie pipe 2 sets firmly vibrating impacter 1;
The bottom of tremie pipe 2 has a flaring conical section 3, below this flaring conical section 3, connect a direct tube section 21, vibrating impacter 1 is placed in this flaring conical section 3 belows, a side tube-wall of direct tube section 21 reclines, vibrating impacter 1 top arranges guide strip 31, makes tremie pipe passage at the opposite side of its underpart deflection direct tube section.Can avoid like this rubble being fallen by tremie pipe to pound vibrating impacter 1.The lower port of tremie pipe 2 can be substantially concordant with vibrating impacter 1 lower end.
Described cable conduit 7a is arranged on the inside of tremie pipe, is fixedly connected with this tremie pipe 2, and it is hollow-core construction, wherein establishes cable and is connected with vibrating impacter 1.
Described powder jet pipe 7b is arranged on tremie pipe 2 inside, and its upper end passes tremie pipe 2 and is connected with curing compound pressurized tank 9 by tube connector 70, its lower port 71 be arranged on described tremie pipe lower port above, take be arranged on flaring conical section 3 bottom as good.
Blanking device can also comprise flow pipe 8a and return pipe 8b, flow pipe 8a is fixedly connected with the inwall of tremie pipe 2, the upper port of this flow pipe 8a connects water pump, lower port connects described vibrating impacter, for cooling vibrating impacter motor, the water of cooling motor can also spray by hole for water spraying, and to shake, a hole A is made in punching; Return pipe 8b one end connects vibrating impacter motor, and the other end connects storage tank, and adjusting valve plate is also set on it, does not spray water or end return pipe and spray water for selecting a communication return pipe.
As shown in Figure 3, in tremie pipe 2, cable conduit 7a, powder jet pipe 7b and flow pipe 8a are evenly distributed on tremie pipe 2 circumferential inner walls, and return pipe 8b can be attached to tremie pipe inwall and set firmly.
Tremie pipe caliber: powder jet pipe caliber is 5-10 times.Can be for example 7 times.
The pressure type feeding chamber that described feeding chamber 5 is best, arranges imported valve 51 and outlet valve 52 in described feeding chamber 5.It is driven and is controlled by drive unit 511 and 521 respectively, as shown in Figure 2.Feeding chamber 5 is provided with compressed air delivery device.
In the said equipment, shake and rush the technique of powder spray broken stone pile:
Step 1: start vibrating impacter 1, vibrating impacter starts pore-creating, and A reaches set depth in Zao Zhuan hole, ground,
Step 2: upwards promote vibrating impacter to setpoint distance from bottom, stake hole, vibrating impacter 1 remain in operation but adjust valve plate and no longer water spray, by feeding chamber 5, add to press to simultaneously and in hole, add the rubble in inserts B, in inserts B, also comprise curing compound, it is at least one in cement in flyash, cement and building sand and other two kinds, this curing compound pressurizes by pressurized tank 9, through powder jet pipe 7b, be ejected in inserts tremie pipe 2, then enter a hole A together with rubble, vibrating impacter 1 mixes closely knit by the inserts in the stake hole of this setpoint distance with the water in stake hole;
Repeating step 2, until filler fills up closely knit in whole hole.
In above-mentioned technique, the proportioning of the inserts of use can be:
The input speed of inserts: 0.5～1m in work progress
3/ minute, it can be 1450Hz～3500Hz that the shaking of vibrating impacter rushed frequency.Be for example 2000 hertz, or 3000 hertz, or 1500 hertz, or 3500 hertz mate with above-mentioned four examples.The average diameter of rubble can be 3～10 centimetres.Can be for example 3-5 centimetre, or 5 centimetres, or 7 centimetres, or 8.5 centimetres, or 10 centimetres mate with above-mentioned four examples.
When filling metaling, spray curing compound, the ratio of curing compound and metaling is for being 10～40:100, and for example, this ratio is 30:100.While filling metaling 100 side, spray curing compound 30 sides.The pressure that dusts of rubble and curing compound is respectively 0.5Mpa and 0.4Mpa.
When hole is made in the punching of shaking, need to provide current to be used as impact pore-forming and cooling vibrating impacter motor, impact and cooling current are used is same flow pipe 8a, water sprays from vibrating impacter 1 head after the motor of vibrating impacter 1 of flowing through; During vibrating impacter 1 downward pore-creating, impact and the cooling water that all needs; In the process of promote encrypting, no longer need water slug to assist pore-creating, but the cooling water of motor still need; The system stake provided by the invention effect that the equipment that rushes adds return pipe 8b of shaking is by conversion valve, to control the ejection of water, vibrating impacter head water spray while making only pore-creating, and when encryption, water is got back to the water tank on ground along return pipe, can reduce like this waste of water.When regulating valve plate cut-off return pipe, the water of cooling motor sprays by the hole for water spraying on vibrating impacter, for making a hole.During conversion valve close jet hole on the water injector in described vibrating impacter, the water of cooling vibrating impacter motor flows out a stake hole by described return pipe and returns to storage tank, and this is that rubble and the curing compound of in to stake hole, filling carry out closely knit process.
While making broken stone pile in prior art, vibrating impacter will be sprayed water when hole is made in the punching of shaking, and at the rubble in stake hole, shakes and rushes when closely knit, also will spray water.During vibroflotation construction, encrypt injection flow rate very large, water can be full of whole hole of producing, and returns to ground.Because soil around in pore-creating process is by compacted, water permeability variation, therefore only has the water of small part to infiltrate stratum, and most of water is flow back to ground along with inserting of building stones.
In technique of the present invention, the water spray of vibrating impacter is same as the prior art, and change can not adjust.Routine makes a hole and the closely knit water yield applying just can meet curing compound and metaling mixing has been used.In the stake hole of this setpoint distance, inserts shakes to rush after closely knit and upwards promotes vibrating impacter to setpoint distance again, then carries rubble and curing compound, then shake rush closely knit.Fill piecemeal metaling and curing compound powder material spray, constantly circulation, until filler is closely knit in whole hole like this.In method provided by the invention, if just use the punching method that shakes of prior art, vibrating impacter is all sprayed water all the time, sometimes may cause hypervolia, so not only cause the waste of water, simultaneously, also can make the water that curing compound is above gushed take away, impact is shaken and is rushed curing effect.Therefore, closely knit shake break through journey in vibrating impacter can not spray water.If when the water in stake hole is not enough, also can regulate valve plate, allow vibrating impacter ejection meet the water yield of the closely knit punching of shaking, and then close the water spray of vibrating impacter, allow the water of cooling motor be returned in ground water tank by return pipe.
This construction technology is utilized series of physical one chemical reaction producing between curing compound and rubble, rubble is hardened into have the high-quality ground of globality, water stability and higher-strength.
Lower end outlet 71 outlets of the lower end higher than described inserts tremie pipe 2 21 of described discharge tube 7.Like this, just can guarantee to break through in journey shaking, curing compound powder, from spray above, is mixed and falls into a hole with rubble in tremie pipe 2, through shaking punching effect, can be so that curing compound powder can evenly mix with rubble.
Described feeding chamber 5 is pressure type feeding chamber in the present embodiment, which is provided with compressed air delivery device.Rubble is that the air pressure that rushes the pressure storehouse being connected with tremie pipe 2 on equipment by shaking and provide constantly adds in tremie pipe, and carrying the pressure of rubble is 0.3-0.5Mpa.
In the prior art, do basis, or only fill rubble, through shaking, punching becomes broken stone pile, or in rubble, add cement, flyash etc., it is put into together with rubble to mixer and stir into mortar, be poured into again (being CFG engineering method) in a hole, and the powder that method of the present invention is manufactured spray broken stone pile one anti-convention, the employing punching method that shakes is made a hole, rubble tremie pipe by vibrating impacter together with curing compound siccative is lowered in a hole, by vibrating impacter shake rush closely knit, obtain integrated pile, the difference that is the present invention and existing CFG engineering method is that curing compound dry powder is delivered in a hole by special pipeline, shaking in vibrating impacter and in stake hole mixes with rubble etc. in breaking through journey.And be to have added curing compound with the difference of common broken stone pile, obtain the vibrosinking pile of one.Method provided by the invention has overcome the hypodynamic shortcoming of simple broken stone pile single pile bearing, makes the bearing capacity of single pile of broken stone pile reach 90～95% of CFG stake.With the comparison of CFG engineering method, in technique, tool has the following advantages:
Aspect construction equipment cost, can reduce by 50%, powder spray broken stone pile is only used the shake equipment that rushes and auxiliary mobile crane or crawler crane to construct, and CFG stake must be used special-purpose rotary drilling rig when construction, also will use mixer, and equipment cost is high.From constructor quantitatively, during powder spray the Macadam Pile Construction, only need hoistman, the reinforced operator of rubble and each of powder feed operator to construct, and man-hour requirement rotary drilling rig operator is being executed in CFG stake, each of cement mixer operator, cement pump truck operator and in boring lower 2～3 of reinforcing bar personnel just can construct.
From general rule, the present invention's punching of directly shaking in stake hole, in the process that rubble is closely knit, the curing compound such as cement are blended in rubble, because even not as what be uniformly mixed in CFG engineering method, the used in amounts of the curing compound such as cement will increase, but in fact, in the piling method processed of this powder spray broken stone pile, the addition of curing compound can not increase, if can get hold of the blanking velocity of rubble and curing compound, while guaranteeing to discharge from vibrating impacter tremie pipe, rubble and curing compound are just mixed preferably, the proportioning of the proportioning of the inserts using in this method and CFG method can be basic identical, can also reduce the consumption of curing compound even.
The lower end outlet of described discharge tube higher than the distance of the lower end outlet of described inserts tremie pipe is: 2～4 meters, before inserts ejection tremie pipe 2～3 meters, inserts starts fully to mix with the curing compound of gasification state.
The pressure of described feeding chamber is 0.3～0.5Mpa.The discharge pressure of described discharge tube is 0.3～0.5Mpa.The pressure that dusts like this can, so that curing compound is gasification state, mix with rubble better.
Claims (9)
1. shake and rush a technique for powder spray broken stone pile, comprise the steps:
Step 1: start vibrating impacter, vibrating impacter starts to make a hole, reaches set depth in Zao Zhuan hole, ground;
Step 2: upwards promote vibrating impacter to setpoint distance, vibrating impacter remains in operation, the inserts in vibrating impacter tremie pipe falls into hole from the tremie pipe mouth of pipe of lower end, and this inserts comprises rubble, also comprises curing compound, and it is cement; Or comprise cement, and flyash and/or building sand; This curing compound is that powder jet pipe is carried and sent into by pressure by other conduit, bottom at vibrating impacter tremie pipe falls into a hole together with described rubble, in the presence of the conventional water spray of vibrating impacter, described curing compound mixes with rubble, and vibrating impacter is closely knit by the inserts of this setpoint distance in stake hole;
Repeating step 2, until filler is closely knit in whole hole, is dried and solidifies the powder spray broken stone pile that rear formation is solidified as a whole.
2. technique according to claim 1, is characterized in that:
In inserts, the proportioning of curing compound and rubble is: 0.7～0.85m
3rubble in, add cement 400～450Kg, or, add 320～360Kg cement and 0.6m
3building sand, or, add 250～290Kg cement and 100kg flyash, or, add 250～290Kg cement, 100kg flyash and 0.55m
3building sand.
3. technique according to claim 1 and 2, is characterized in that: the input speed of inserts: 0.5～1m in work progress
3/ minute; And/or,
It is 1450Hz～3500Hz that the shaking of vibrating impacter rushed frequency; And/or,
Described curing compound is carried by pressure, is the bottom of gasification state in tremie pipe and mixes with rubble; And/or,
Described rubble is that the air pressure that rushes the pressure storehouse being connected with tremie pipe on equipment by shaking and provide constantly adds in tremie pipe; And/or,
The pressure of described feeding chamber is 0.3～0.5Mpa; And/or,
The pressure of described discharge tube is 0.3～0.5Mpa; And/or,
The average diameter of rubble is 3～10 centimetres; And/or,
The volume ratio of described curing compound and input rubble is 10～40:100; And/or,
In step 2, carry out in compacting process, close in vibrating impacter to its hole for water spraying water transport channel, the water of cooling vibrating impacter motor is returned in the water tank of ground by the return pipe wherein arranging.
4. the stake processed of rushing powder spray broken stone pile of shaking is shaken and is rushed an equipment, it is characterized in that: comprise vibrating impacter and blanking device,
Described blanking device comprises tremie pipe, cable conduit and powder jet pipe,
The upper end of described tremie pipe connects feeding chamber and feeding device, and the lower end of this tremie pipe sets firmly described vibrating impacter;
Described cable conduit is arranged on inside or the outside of described tremie pipe, is fixedly connected with this tremie pipe, wherein establishes cable and is connected with described vibrating impacter;
It is inner that described powder jet pipe is arranged on described tremie pipe, and its upper end passes described tremie pipe and is connected with curing compound pressurized tank, and its lower port is arranged on the bottom of described tremie pipe.
5. the stake processed of rushing powder spray broken stone pile of shaking according to claim 4 is shaken and is rushed equipment, it is characterized in that: the bottom of described tremie pipe has a flaring conical section, below this flaring conical section, connect a direct tube section, described vibrating impacter is placed in this flaring conical section below, a recline side tube-wall of direct tube section, vibrating impacter top arranges guide strip and makes tremie pipe passage at the opposite side of its underpart deflection direct tube section.
6. the stake processed of rushing powder spray broken stone pile of shaking according to claim 5 is shaken and is rushed equipment, it is characterized in that: the lower end outlet of described discharge tube is arranged on the bottom of described flaring taper Taper Pipe section and is advisable; And/or,
The lower end outlet of described discharge tube higher than the distance of the lower end outlet of described inserts tremie pipe is: 2～4 meters.
7. the stake processed of rushing powder spray broken stone pile according to shaking described in claim 4 or 5 or 6 is shaken and is rushed equipment, it is characterized in that: described blanking device also comprises flow pipe and return pipe, described flow pipe is fixedly connected with tremie pipe, the upper port of this flow pipe connects water pump, and lower port connects described vibrating impacter for cooling vibrating impacter motor; Described return pipe one end connects described motor, and the other end connects storage tank.
8. the stake processed of rushing powder spray broken stone pile according to shaking described in claim 4 or 5 or 6 or 7 is shaken and is rushed equipment, it is characterized in that: described discharge tube is arranged on the inwall of described tremie pipe.
9. the stake processed of rushing powder spray broken stone pile according to shaking one of claim 4 to 8 Suo Shu is shaken and is rushed equipment, it is characterized in that: described tremie pipe caliber: described powder jet pipe caliber is 5～10.
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| CN201310542130.3A CN104131564B (en) | 2013-05-27 | 2013-11-05 | Vibroflotation powder sprays the stake technique processed of broken stone pile and its stake vibroflotation equipment processed |
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| CN201310542130.3A CN104131564B (en) | 2013-05-27 | 2013-11-05 | Vibroflotation powder sprays the stake technique processed of broken stone pile and its stake vibroflotation equipment processed |
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| CN104358248A (en) * | 2014-11-13 | 2015-02-18 | 中国水电基础局有限公司 | Telescopic guide rod of vibroflotation gravel pile machine |
| CN107299629A (en) * | 2017-06-21 | 2017-10-27 | 廊坊市仁达岩土工程有限公司 | A kind of integrated water-carriage system for vibroflotation construction |
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| CN112030646A (en) * | 2020-03-04 | 2020-12-04 | 河北鸿森公路工程技术有限公司 | Granular pile construction process for treating highway diseases |
| CN113110337A (en) * | 2021-04-20 | 2021-07-13 | 中国华能集团有限公司 | Intelligent feeding device and method for vibroflotation gravel pile |
| CN116988736A (en) * | 2023-07-19 | 2023-11-03 | 中电建振冲建设工程股份有限公司 | Hole guiding vibroflotation process of composite foundation |
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| 周权显等: "振冲碎石桩结合水泥注浆在软基处理中的应用", 《西部探矿工程》 * |
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| CN104358248A (en) * | 2014-11-13 | 2015-02-18 | 中国水电基础局有限公司 | Telescopic guide rod of vibroflotation gravel pile machine |
| CN104358248B (en) * | 2014-11-13 | 2016-04-27 | 中国水电基础局有限公司 | The telescopic guide rod of vibro replacement stone column machine |
| CN107299629A (en) * | 2017-06-21 | 2017-10-27 | 廊坊市仁达岩土工程有限公司 | A kind of integrated water-carriage system for vibroflotation construction |
| CN107299629B (en) * | 2017-06-21 | 2019-06-07 | 廊坊市仁达岩土工程有限公司 | A kind of integrated water-carriage system for vibroflotation construction |
| CN108532585A (en) * | 2018-04-12 | 2018-09-14 | 桂林理工大学 | A kind of method for processing foundation of ancient collapse in karst region |
| CN112030646A (en) * | 2020-03-04 | 2020-12-04 | 河北鸿森公路工程技术有限公司 | Granular pile construction process for treating highway diseases |
| CN113110337A (en) * | 2021-04-20 | 2021-07-13 | 中国华能集团有限公司 | Intelligent feeding device and method for vibroflotation gravel pile |
| CN113110337B (en) * | 2021-04-20 | 2022-04-05 | 中国华能集团有限公司 | Intelligent feeding device and method for vibroflotation gravel pile |
| CN116988736A (en) * | 2023-07-19 | 2023-11-03 | 中电建振冲建设工程股份有限公司 | Hole guiding vibroflotation process of composite foundation |
| CN116988736B (en) * | 2023-07-19 | 2024-02-20 | 中电建振冲建设工程股份有限公司 | Hole guiding vibroflotation process of composite foundation |
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