EP3564444B1 - Verfahren mit aerosol zur störungsbearbeitung auf einem fundament aus weichem boden - Google Patents

Verfahren mit aerosol zur störungsbearbeitung auf einem fundament aus weichem boden Download PDF

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EP3564444B1
EP3564444B1 EP17888308.8A EP17888308A EP3564444B1 EP 3564444 B1 EP3564444 B1 EP 3564444B1 EP 17888308 A EP17888308 A EP 17888308A EP 3564444 B1 EP3564444 B1 EP 3564444B1
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aerosol
soft soil
bed course
soil foundation
injection
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EP3564444A1 (de
EP3564444A4 (de
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Huiming Wu
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
    • E02D3/103—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by installing wick drains or sand bags

Definitions

  • the invention relates to a foundation-processing method, which is suitable for the process of the soft soil foundation, wherein it employs an aerosol to perform disturbance processing on the soft soil foundation, and belongs to the technical field of civil engineering.
  • a method employing an aerosol to perform disturbance processing on a soft soil foundation is known e.g. from JP S60 223518 A .
  • Soft soil is mostly distributed in the southeastern coastal areas of China, and is divided into littoral environmental sediments, sea-land transition environmental sediments (delta sediments), river environmental sediments, lake environmental sediments and marsh environment sediments according to geological genesis.
  • delta sediments sea-land transition environmental sediments
  • river environmental sediments lake environmental sediments
  • marsh environment sediments according to geological genesis.
  • the soft soil When the soft soil is used as the foundation or other uses, it needs to be reinforced, because the soft soil has the properties such as high water content, high void ratio, high flow plasticity and so on.
  • the drainage consolidation method is a commonly used method for processing foundations.
  • the principle of the method is to provide a vertical drain such as a sand well, a plastic drainage board and the like, so as to bring the pore water in soil layers to be discharged mainly from the horizontal direction by the vertical drain, resulting in increasing the drainage ways of the soil layers, shortening the drainage distance, and accelerating the soil drainage consolidation under the effect of loading, so that the soil will be greatly settled in a short time, thereby achieving the purposes of improving soil strength and reducing post-construction settlement.
  • a vertical drain such as a sand well, a plastic drainage board and the like
  • the heap (vacuum) preloading drainage consolidation method is a more economical and effective soft foundation processing method, but it also has greater limitations, mainly in that:
  • the technical problem to be solved by the present invention is to address the defect presented in the drainage consolidation heap preloading method in prior art, and to provide a method employing an aerosol to perform disturbance processing on a soft soil foundation.
  • the method is to inject the aerosol to the deep soil of the soft soil foundation, and can accelerate the consolidation speed of the soil, deepen the processing depth of the soil, and reduce the long-term creep of the soil.
  • the present invention adopts the steps set in claim 1.
  • the method employing the aerosol to perform disturbance processing on the soft soil foundation comprises the following steps:
  • Said drain is a plastic drainage board or a bagged sand well.
  • the effective drainage diameter of said drain is d e .
  • d e 1 .05L
  • d e 1.13L
  • L is the distance between the drains, and L is preferably 0.7-1.5m.
  • the thickness of the bottom bed course is 30cm, and the total thickness of the two layers of the bed courses is at least 50cm.
  • the top of said drain protrudes from the bottom bed course, and is above the horizontal plane for at least 50cm, so as to make the drain to be bent and buried in the sand bed course.
  • the gutter is formed by digging sands around the soft soil foundation to be processed, in order to discharge water out of the site in time.
  • Said bed course is a sand bed course or a crushed stone bed course.
  • the sand in said sand bed course is medium coarse sand, and the clay particle content is equal to or less than 3% (the sand material may contain a small amount of gravel having a particle diameter of equal to or less than 50 mm).
  • Said sand bed course has a dry density of more than 1.5 t/m 3 and a permeability coefficient of more than 1 ⁇ 10 -2 cm/s.
  • the depth of said gutter is at least 1.0 m
  • the bottom of the gutter is backfilled with the pond slag having gradation and fine particle diameter, and the backfilling depth is at least 50 cm.
  • a heaped-load is laid on the bed course, and then the punched channel is constructed through the heaped-load and the bed course and into the soft soil foundation to be processed by using punching technique.
  • Said protective casing has a length of being ensured to pass through the bed course, and is punched into the soft soil foundation for a depth of at least 50cm.
  • the diameter of said protective casing is 10-15 cm.
  • Said punched channel has a depth of being ensured to pass through the heaped-load and the bed course, and is punched into the soft soil foundation for a depth of at least 50cm.
  • the diameter of said punched channel is 10-15 cm.
  • said heaped-load (5) is typically a pond slag.
  • said heap slag When laying the first layer, it typically uses the pond slag having gradation and fine particle diameter, the mud content is less than 5%, and the compactness is required to be more than 90 %.
  • the total height of the heap is checked and calculated according to the foundation processing bearing capacity requirements and the construction period.
  • the calculation formula is: wherein, U is the average consolidation degree of the foundation within t time; q ⁇ 1 is the loading rate of the i-th load (kPa/d); is the load cumulative ⁇ p value at all levels (kPa); T i and T i-1 are the starting time and ending time of the i-th load loading (from the zero point, unit d), respectively, ⁇ and ⁇ are parameters, and can be calculated and selected according to the drainage consolidation conditions of the foundation soil.
  • the heaped-load is selected from a sealing membrane, and the loading means of continuously vacuuming to the maximum pressure for once can be used.
  • the under-membrane vacuum degree under vacuum preloading should be stably maintained at equal to or more than 86.7 kPa (650 mmHg).
  • the sealing membrane should use a gas-impermeable material with good anti-aging property, good toughness and strong puncture resistance.
  • the material of said injection pipe is a rigid material. Injection holes are evenly distributed on the pipe wall.
  • the diameter of the injection hole is typically 2-5 mm, and the size and the distribution density of the injection holes can be self-adjusted according to design. According to design requirements, the length of the injection pipe is equal to or less than the depth of the drain buried in the soft soil.
  • the aerosol raw material is a polyacrylamide-based chemical material.
  • the mass concentration of the aerosol raw material is 6/10000-9/10000.
  • Said aerosol generator is the aerosol generator presenting in the prior art or being commercially available and having an aerosol-generating function, and preferably an industrial high pressure atomization container.
  • Said aerosol injection apparatus is the apparatus presenting in the prior art or being commercially available and having an aerosol-injection function, and preferably a high pressure jet grouting pile construction equipment.
  • Said aerosol is introduced into the injection pipe under pressure, and the pressure is at least 0.6 MPa, preferably 0.8-1 MPa.
  • the injection rate is at most 2 s/revolution, the injection radius is at least 3m, and the injection time is at least 600 seconds/hole.
  • the injection rate is preferably 1-1.5 s/revolution, the injection radius is preferably 4-5 m, and the injection time is preferably 650-700 seconds/hole.
  • the two injection ranges need to have a certain overlap to ensure that the entire injection area is completely injected (in the figure, the large circle indicates the injection range, and the small circle indicates the overlap of the two injection ranges), and the injection depth is not greater than the depth of the drain.
  • the aerosol being originally the chemical material in the solid or liquid form (such as polyacrylamide) is prepared as a solution with the designed concentration (recommended to the maximum saturation concentration); wherein a certain amount of an inorganic high cationic material and sludge are brought in contact, and then a neutralization reaction can occur on the surface of the sludge, thereby forming an unhardened structure of the sludge and providing initial microvoids.
  • the amphiphilic high molecule polymer material in the functional material system changes the surface property of the sludge, resulting in changing the sludge from hydrophilicity into hydrophobicity and forming a micro-drainage surface in the sludge.
  • the two interact each other to form a micro-surface drainage system in the sludge effectively, and the apparent phenomenon is that the permeability coefficient of the sludge increases and the strength of the soil increases.
  • the liquid to be injected into the soil is atomized to form the aerosol, and is injected into the interior of the soil by applying high pressure.
  • the role of the technique is, on one hand, to enable the chemical components in the gas to uniformly act on the soil within the injection range and to occur a chemical reaction, and on the other hand, to form a horizontal cutting plane with a small thickness in the soil, add a horizontal drainage channel, shorten the drainage distance and achieve the effect of rapid drainage.
  • the method of the invention has the following advantages:
  • the foundation processing effect of the method of the invention is far superior to the traditional method, and is an original new method.
  • ⁇ is the data of the soft soil foundation
  • ⁇ is the data of the foundation after being processed by the method of the Comparative Example 1
  • ⁇ is the data of the foundation after being processed by the method of the Example 1.
  • the large circle indicates the injection range
  • the small circle indicates the overlap of two injection ranges.
  • the injection depth is not greater than the depth of the drain.
  • both of the drains and the bed course are left in the soil without the need of being taken out.
  • the heaped-load is usually not unloaded and outward transported, and is heaped to the designed standard height for earthwork balance.
  • the protective casing is used for the aerosol-injection, has no effect on the foundation processing, and can be left until completing the foundation processing and then taken out, in order to prepare to inject the aerosol again.
  • the processing time is typically 3-4 months.
  • the soft soil foundation of a sea-enclosing project is processed.
  • the soft soil layer is 20-25m thick, and the surface layer is the dredger fill with a thickness of 3-5m.
  • the design parameters of the soft soil foundation are shown in the following table.
  • Layer number Upper layer name Indicator Bulk density ⁇ (kN/m3) Consolidated quick shear Permeability coefficient Internal friction angle ⁇ (°) Cohesive strength C (kPa) Horizontal direction Kh (*10 -6 cm/s) Vertical direction Kv (*10 -6 cm/s) 2 1 Sludge 15.3 5.5 9.7 2 3 Powdery clay 19.2 14.4 27.7 0.27 0.18 2 4 Sludge clay 17.5 9.5 14.9 0.03 0.01 3 1 Powdery clay containing breccia, Breccia containing powdery clay 19.6 15.1 30.4 0.84 0.43 3 1a Powdery clay 19.3 16.3 35.2 0.47 0.29 3 3 Clay 19.1 16.3 37 0.10 0.08
  • This first example of employing an aerosol for performing disturbance processing on a soft soil foundation comprises the following steps:
  • Said aerosol raw material is polyacrylamide, and in the aerosol solution, the concentration of the polyacrylamide is 6/10000.
  • Said aerosol generator is an industrial high pressure atomization container.
  • Said aerosol injection apparatus is a high pressure jet grouting pile construction equipment.
  • the permeability coefficient of the soft soil foundation is increased by two orders of magnitude, the void ratio decreases, and the cross-plate shear strength is obviously enhanced.
  • the variations of each parameter changing with time are shown in Figs. 2 , 3 and 4 .
  • each indicator of the soft soil foundation meets the processing requirements.
  • This second example for processing the soft soil foundation is the same as that of Example 1, except that, in the step (1), said drain is a bagged sand well, the diameter d w is 100 mm, the drains are arranged in a square shape, the effective drainage diameter of the drain d e is 1.356 m, and L is 1.2 m.
  • the permeability coefficient of the soft soil foundation is increased by two orders of magnitude, the void ratio decreases, and the cross-plate shear strength is obviously enhanced.
  • the variations of each parameter changing with time are basically the same as that of Example 1.
  • each indicator of the soft soil foundation meets the processing requirements.
  • This third example for processing the soft soil foundation is the same as that of Example 1, except that, in the step (3), after completing providing the bed course and the gutter, the heaped-load is laid on the bed course, and then a punched channel is constructed through the heaped-load and the bed course and into the soft soil foundation to be processed by using punching technique.
  • Said punched channel has a depth of being ensured to pass through the backfilling soil and the bed course, is deep into the soft soil foundation for a depth of 50 cm, and has a diameter of 10 cm.
  • Said heaped-load is heap preloaded.
  • the material is a pond slag, and the heaped-load height is 3 m. It is heaped for twice respectively.
  • the first layer is laid for 1.5 m, and uses the pond slag having gradation and fine particle diameter; the mud content is less than 5%, and the compactness is required to be more than 90%.
  • the total backfilling height is calculated according to the foundation processing bearing capacity requirements.
  • the permeability coefficient of the soft soil foundation is increased by two orders of magnitude, the void ratio decreases, and the cross-plate shear strength is obviously enhanced.
  • the variations of each parameter changing with time are basically the same as that of Example 1.
  • each indicator of the soft soil foundation meets the processing requirements.
  • This fourth example for processing the soft soil foundation is the same as that of Example 3, except that, in the step (3), the heaped-load is a sealing membrane, and uses the loading means of continuously vacuuming to the maximum pressure for once, wherein, the pressure is 100 kPa.
  • the permeability coefficient of the soft soil foundation is increased by two orders of magnitude, the void ratio decreases, and the cross-plate shear strength is obviously enhanced.
  • the variations of each parameter changing with time are basically the same as that of Example 1.
  • the method for processing the soft soil foundation is the same as that of Example 1, except that, in the step (5), the injected aerosol is changed to high-pressure air, so as to achieve the purpose of disturbing the foundation soil.
  • the permeability coefficient of the soft soil foundation processed is increased by two orders of magnitude, the void ratio decreases, and the cross-plate shear strength is not enhanced.
  • the variations of each parameter changing with time are shown in Fig. 2 , 3 and 4 . After the entire area has been injected, the protective casing is taken out, and then after about 6-9 months, each indicator of the soft soil foundation meets the processing requirements.
  • the sludge soft soil is a very structural soil, and it takes a long time to recover after being disturbed. If the sludge soft soil is disturbed during heap preloading, the settlement will be difficult to be stabilized, and although it can increase the settlement amount, it needs to last for a long time. However, the incorporation of the aerosol can quickly restore the strength of the disturbed soil, and will greatly increase the strength of the soil, so that the settlement is tended to be faster stabilized.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Claims (10)

  1. Verfahren zum Einsetzen eines Aerosols zum Durchführen einer Störungsverarbeitung auf einem Fundament aus weichem Boden, dadurch gekennzeichnet, dass es die folgenden Schritte umfasst:
    (1) vertikales Bereitstellen eines Abflusskanals: das Fundament aus weichem Boden, das verarbeitet werden soll, wird Feldmessen und Abstecken, Bestimmen der Verarbeitungsfläche und Einebnen eines Bauplatzes gemäß den Anforderungen in den technischen Bauvorschriften unterzogen; dann wird eine Mehrzahl von vertikalen Abläufen in den weichen Boden gebaut; wobei die Spitze jedes der Abläufe (1) von der Oberflächenschicht des Fundaments aus weichem Boden hervorkommt; und die Abläufe im Allgemeinen als der Abflusskanal bezeichnet werden;
    (2) Bereitstellen einer Unterlagenlage und Graben eines Abzugsgrabens: nach Abschluss des Bereitstellen eines in Schritt (1) beschriebenen Ablaufs wird die Unterlagenlage (2) gleichmäßig auf die Oberflächenschicht des Fundaments aus weichem Boden, das verarbeitet werden soll, gelegt, um die Spitze des Ablaufs zu bedecken; und der Abzugsgraben (3) wird durch das Graben von Sand um das Fundament aus weichem Boden, das verarbeitet werden soll, ausgebildet, um rechtzeitig Wasser von der Stelle ablaufen zu lassen;
    (3) Bereitstellen eines Schutzmantels oder eines gestanzten Kanals (4): nach Abschluss des Bereitstellens der Unterlagenlage und des Abzugsgrabens, die in Schritt (2) beschrieben wurden, wird der Schutzmantel durch die Unterlagenlage und in das Fundament aus weichem Boden, das verarbeitet werden soll, gegraben;
    alternativ nach Abschluss des Bereitstellens der Unterlagenlage und des Abzugsgrabens, die in Schritt (2) beschrieben wurden, wird eine gehäufte Last (5) auf die Unterlagenlage gelegt und dann wird der gestanzte Kanal (4) durch die gehäufte Last und die Unterlagenlage und in das Fundament aus weichem Boden, das verarbeitet werden soll, gebaut, indem eine Stanztechnik verwendet wird;
    (4) Bereitstellen eines Einspritzrohrs (8): nach Abschluss des Bereitstellens des Schutzmantels oder des gestanzten Kanals in Schritt (3) wird das Einspritzrohr durch den Schutzmantel oder den gestanzten Kanal passiert und in das Fundament aus weichem Boden, das verarbeitet werden soll, gedrückt oder gebohrt;
    (5) Einspritzen eines Aerosols: Verbinden des Gaseinlasses des Einspritzrohrs (8) mit dem Ausstoß einer Aerosolerzeugungsvorrichtung (7); dann Platzieren einer Aerosollösung, die durch Zugeben von Wasser in die Aerosolrohstoffe in einer festen oder flüssigen Form hergestellt wird, in die Aerosolerzeugungsvorrichtung, Öffnen der Schalter der Aerosolerzeugungsvorrichtung und einer Aerosoleinspritzeinrichtung, Ausbilden des Aerosols durch die Aerosollösung in der Aerosolerzeugungsvorrichtung unter hohem Druck, Einführen des Aerosol in das Einspritzrohr unter Druck, Einspritzen des Aerosols in das Fundament aus weichem Boden, das verarbeitet werden soll, durch das Einspritzrohr unter hohem Druck; und nach dem Einspritzen, um den gestalteten Bereich und die gestaltete Einspritzzeit zu erreichen, Anheben des Einspritzrohrs auf die nächste Gestaltungshöhe für weiteres schrittweises Einspritzen von niedrig bis hoch, bis alle Einspritzvorgänge abgeschlossen sind.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in Schritt (1) eine Mehrzahl der Abläufe in einer dreieckigen Form oder quadratische Form angeordnet sind; der Abstand zwischen jedem Ablauf L 0,7-1,5 m beträgt; der Ablauf ein Abflussbrett aus Kunststoff oder ein in Säcke abgefüllter Sandbrunnen ist; der Durchmesser des in Säcke abgefüllten Sandbrunnens dw 70-120 mm beträgt; und der Durchmesser des Abflussbretts aus Kunststoff ein äquivalenter Durchmesser dp, dp=2(b+δ)/π ist; wobei b die Breite des Abflussbretts aus Kunststoff ist und δ die Dicke des Abflussbretts aus Kunststoff ist.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in Schritt (2) die Unterlagenlage (2) zwei Schichten ist, die Dicke der unteren Unterlagenlage 30 cm beträgt und die Gesamtdicke der zwei Schichten der Unterlagenlage wenigstens 50 cm beträgt; die Spitze des Ablaufs aus der unteren Unterlagenlage hervortritt und für wenigstens 50 cm über der horizontalen Ebene liegt; die Unterlagenlage eine Sandunterlagenlage einer zerkleinerten Steinunterlagenlage ist; und die Tiefe des Abzugsgrabens (3) wenigstens 1,0 cm beträgt.
  4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in Schritt (3), wenn der Schutzmantel bereitgestellt wird, der Schutzmantel eine Länge aufweist, damit sichergestellt wird, dass er durch die Unterlagenlage passiert, für eine Tiefe von wenigstens 50 cm in das Fundament aus weichem Boden gestanzt wird und einen Durchmesser von 10-15 cm aufweist; und alternativ, wenn der gestanzte Kanal bereitgestellt wird, der gestanzte Kanal eine Tiefe aufweist, damit sichergestellt wird, dass er durch die gehäufte Last und die Unterlagenlage passiert, für eine Tiefe von wenigstens 50 cm in das Fundament aus weichem Boden gestanzt wird und einen Durchmesser von 10-15 cm aufweist.
  5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in Schritt (3), wenn die gehäufte Last durch das Mittel des Haufenvorladens gehäuft wird, das Material eine Absetzstellenschlacke ist; und alternativ, wenn die gehäufte Last (5) durch Vakuumvorladen gehäuft wird, das Material der gehäuften Ladung eine Dichtungsmembran verwendet.
  6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in Schritt (4) in dem Fundament aus weichem Boden ein Einspritzrohr alle 3-5 m bereitgestellt wird; Einspritzlöcher gleichmäßig auf der Rohrwand des Einspritzrohrs verteilt sind; der Durchmesser des Einspritzlochs 2-5 mm beträgt und die Länge des Einspritzrohrs gleich oder weniger als die Tiefe des in dem weichen Boden vergrabenen Ablaufs ist.
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Abläufe in dem Fundament aus weichem Boden in einer dreieckigen Form oder einer quadratischen Form verteilt sind und sich das Einspritzrohr außerhalb der Abläufe und innerhalb der dreieckigen Form oder der quadratischen Form befindet.
  8. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in Schritt (5) der Aerosolrohstoff Polyacrylamid ist und in der Aerosollösung die Massenkonzentration des Aerosolrohstoffs 6/10000-9/10000 beträgt.
  9. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Einspritzrohr (8) mit der Aerosoleinspritzeinrichtung (6) verbunden ist, dann der Gaseinlass des Einspritzrohrs mit der Auslassöffnung der Luftpumpe über eine Leitung verbunden ist, und der Gaseinlass der Luftpumpe mit dem Ausstoß der Aerosolerzeugungsvorrichtung (7) verbunden ist.
  10. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in dem Schritt (5) das Aerosol unter einem Druck von wenigstens 0,6 MPa in das Einspritzrohr eingeführt wird; und wenn das Aerosol in das Fundament aus weichem Boden, das verarbeitet werden soll, unter hohem Druck durch das Einspritzrohr eingespritzt wird, die Einspritzrate höchstens 2 s/Umdrehung beträgt, der Einspritzradius wenigstens 3 m beträgt und die Einspritzzeit wenigstens 600 Sekunden/Loch beträgt.
EP17888308.8A 2016-12-27 2017-07-13 Verfahren mit aerosol zur störungsbearbeitung auf einem fundament aus weichem boden Active EP3564444B1 (de)

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CN201611224965.4A CN106677156B (zh) 2016-12-27 2016-12-27 一种应用气溶胶对软土地基进行扰动处理的方法
PCT/CN2017/092812 WO2018120755A1 (zh) 2016-12-27 2017-07-13 一种应用气溶胶对软土地基进行扰动处理的方法

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CN107964936B (zh) * 2017-11-30 2020-04-14 吴慧明 一种分层排水法联合物联变频振碾处理渣土地基的方法
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CN108999177A (zh) * 2018-08-06 2018-12-14 宁波市交通规划设计研究院有限公司 加速排水固结和加大承载力的软土地基处理结构和方法
CN108914923A (zh) * 2018-08-10 2018-11-30 吴慧明 一种围海造陆结合分层排水法地基处理方法
CN109653186B (zh) * 2019-01-21 2020-12-22 吴慧明 一种局部真空结合高压气溶胶扰动的软土地基处理方法
CN109610437B (zh) * 2019-02-19 2021-03-02 吴慧明 一种向下排水的建筑泥浆快速固结方法
CN109944230A (zh) * 2019-04-30 2019-06-28 交通运输部天津水运工程科学研究所 一种软土固结排水装置
CN112982363A (zh) * 2021-03-08 2021-06-18 天津大学 应用于软土地基加固的橡胶囊式注浆挤密桩及打桩方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223518A (ja) * 1984-04-19 1985-11-08 Takenaka Komuten Co Ltd 軟弱粘性土地盤の改良工法
KR100441593B1 (ko) * 2001-10-22 2004-07-23 주식회사 세일종합기술공사 튜브형 배수관을 이용한 준설토 연약지반의 탈수 촉진을위한 시공법 및 튜브형 배수관
JP3757216B2 (ja) * 2002-05-01 2006-03-22 株式会社白石 圧縮気体注入による飽和地盤の地震時液状化防止方法
CN100340721C (zh) * 2005-04-01 2007-10-03 东南大学 气压劈裂真空预压法加固软土地基操作方法
JP4787001B2 (ja) * 2005-11-09 2011-10-05 株式会社竹中工務店 地盤の液状化抑止方法および液状化抑止性能維持装置
JP5046292B2 (ja) * 2007-11-08 2012-10-10 オリエンタル白石株式会社 砂質地盤への空気注入装置および砂質地盤の液状化防止工法
CN101215833A (zh) * 2008-01-15 2008-07-09 同济大学 注气式真空降水方法
CN101575849B (zh) * 2009-06-11 2010-12-01 浙江大学 一种软土地基气水置换固结方法
CN103993594B (zh) * 2014-05-26 2016-06-01 东南大学 一种微纳米气泡处理可液化地基装置及操作方法
CN106049518B (zh) * 2016-07-08 2017-11-07 廊坊市仁达岩土工程有限公司 一种改进的真空降水系统及其控制方法
CN106677156B (zh) * 2016-12-27 2018-12-11 吴慧明 一种应用气溶胶对软土地基进行扰动处理的方法

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WO2018120755A1 (zh) 2018-07-05
JP2020514574A (ja) 2020-05-21

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