WO2019056474A1 - Enhanced catchment drainage pipe structure for soft soil foundation reinforcement treatment - Google Patents
Enhanced catchment drainage pipe structure for soft soil foundation reinforcement treatment Download PDFInfo
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- WO2019056474A1 WO2019056474A1 PCT/CN2017/107912 CN2017107912W WO2019056474A1 WO 2019056474 A1 WO2019056474 A1 WO 2019056474A1 CN 2017107912 W CN2017107912 W CN 2017107912W WO 2019056474 A1 WO2019056474 A1 WO 2019056474A1
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- water collecting
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- catchment
- collecting pipe
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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
Definitions
- the invention relates to the technical field of soft soil foundation reinforcement engineering, in particular to a soft soil foundation reinforcement treatment water collecting strong drainage pipe structure.
- the soft soil foundation reinforcement usually adopts the pre-pressure drainage consolidation method, and the pre-pressure drainage consolidation method mainly has two methods of vacuum preloading and preloading preloading, when vacuum preloading or stacking preloading is adopted.
- the method of soft foundation reinforcement vertical sand wells or drainage boards are generally used as drainage channels in the soft soil foundation, and drainage consolidation occurs under the self-weight load or vacuum load preload of the pile materials, so that the pore water in the soft soil foundation The drainage channel is discharged outward, the pore water pressure is slowly dissipated, the effective stress is gradually increased, the foundation strength is gradually increased, and most of the settlement consolidation of the foundation is eliminated during the construction period, thereby improving the bearing capacity of the soft soil foundation. To reduce post-construction settlement.
- the technical problem to be solved by the invention is to provide a water-collecting drainage pipe structure which is simple in structure, can realize rapid drainage consolidation, and reduces construction period.
- a soft soil foundation reinforcement treatment water collecting strong drainage pipe structure comprising a water collecting pipe and a water collecting cylinder, wherein the outer wall of the water collecting pipe is arranged with a plurality of ribs at intervals in the circumferential direction, each of which The rib is formed to extend radially outward from the outer wall of the water collecting pipe, and the water collecting pipe is covered with a water permeable filter film on each rib to make the adjacent rib, the water permeable filter and the outer wall of the water collecting pipe form a fan shape.
- the bottom of the water collecting pipe is sleeved in the water collecting cylinder, the bottom end of the water collecting pipe is provided with a one-way valve and has a predetermined distance from the bottom end of the water collecting pipe, and the inner cavity of the water collecting pipe is provided to separate the inner cavity of the water collecting pipe
- the upper and lower partitions have a small gap between the partition and the inner wall of the water collecting pipe, and a pressurized air pipe having a bottom end connected to the lower portion of the inner wall of the water collecting pipe is disposed outside the water collecting pipe.
- the top end of the water collecting pipe is connected with an extended drain pipe.
- a bracket supporting the partition member is provided in the water collection tube inner cavity to have a predetermined distance between the partition member and the check valve.
- the bottom end of the pressurized gas pipe is sealedly connected to the water collecting pipe through the water collecting cylinder and the water permeable filter.
- the water collecting pipe covered with the permeable filter membrane is driven into the soft soil foundation, and the water pressure difference between the inner cavity of the water collecting pipe and the surrounding soft soil is soft.
- the pore water in the soil under the action of the water pressure difference, enters the fan-shaped cavity through the permeable membrane and enters the water collecting pipe through the one-way valve.
- the pressurized gas pipe Pressurizing the lower part of the inner cavity of the water collecting pipe, so that the partitioning member moves upward, and the water accumulated in the inner cavity of the water collecting pipe is squeezed and discharged outward, thereby reducing the water level in the water collecting pipe, thereby again between the inner space of the water collecting pipe and the surrounding soft soil.
- the water pressure difference is formed, so that the pore water flows again from the soft soil into the water collecting pipe, and is repeated to form a pulsed drainage to achieve the effect of rapid drainage consolidation of the soft soil foundation from top to bottom.
- FIG. 1 is a schematic structural view of an embodiment of the present invention
- FIG. 2 is a schematic cross-sectional structural view of an embodiment of the present invention.
- FIG. 3 is a schematic structural view of another embodiment of the present invention.
- a soft soil foundation reinforcement treatment water collecting strong drain pipe structure comprising a water collecting pipe 10 and a water collecting cylinder 20, and a water collecting pipe 10 and a water collecting cylinder 20 are inserted into a soft ground to be treated, and set A plurality of ribs 11 are arranged at intervals in the circumferential direction of the outer wall of the water pipe 10, and each rib 11 is formed to extend radially outward from the outer wall of the water collecting pipe 10, and the water collecting pipe 10 is covered with a water permeable filter which is placed on each rib 11 12, thereby forming a plurality of independent fan-shaped cavities 13 in the circumferential direction on the outer wall of the water collecting pipe 10, each of the fan-shaped cavities 13 being composed of adjacent ribs 11, a water permeable filter membrane 12 and an outer wall of the water collecting pipe 10, in the soft soil foundation
- the pore water can permeate into the respective sector-shaped cavities 13 through the permeable membrane 12.
- the bottom of the water collecting pipe 10 is inserted into the water collecting cylinder 20.
- the bottom end of the water collecting pipe 10 is provided with a one-way valve 14 and has a predetermined distance from the bottom end of the water collecting cylinder 20.
- the one-way valve 14 allows water or gas to enter the water collecting pipe only from the bottom to the top. In the inner chamber 10, the flow cannot be reversed, and the water that has permeated into the fan-shaped cavities 13 converges downwardly in the water collecting cylinder 20, and enters the water collecting tube 10 through the check valve 14.
- the height of the top end of the water collecting cylinder 20 is higher than the height of the bottom end of the water collecting pipe 10, that is, higher than the height of the one-way valve 14.
- the inner cavity of the water collecting pipe 10 is provided with a partitioning member 15 which can be moved up and down. There is a slight gap between the partitioning member 15 and the inner wall of the water collecting pipe 10, which is not a sealed connection.
- the partitioning member 15 divides the inner cavity of the water collecting pipe 10 into upper and lower parts, and is located at
- the water collecting pipe 10 is provided with a pressurized air pipe 16 whose bottom end is connected with the lower portion of the inner cavity of the water collecting pipe 10.
- the bottom end of the pressurized air pipe 16 is sequentially passed through the water collecting cylinder 20, and the water permeable filter membrane 12 is sealed and connected with the water collecting pipe 10, and the connection position is Between the partition member 15 and the one-way valve 14, preferably, the inner space of the water collection tube 10 is provided with a bracket (not shown) supporting the partition member, and the bracket enables the partition member 15 and the check valve 14 to be Has a predetermined distance.
- the top end of the pressurized air pipe 16 is extended and connected to an external booster pump (not shown), and the booster pump works, and the pressurized air flow is pressurized by the pressurized air pipe 16 to the lower portion of the inner wall of the water collecting pipe 10, and acts on the pressurized air flow.
- the driving partition 15 is moved upward.
- the top end of the water collecting pipe 10 is connected with an outwardly extending drain pipe 17.
- the partitioning member 15 moves upward to squeeze the water located in the upper portion of the inner cavity of the water collecting pipe 10 through the drain pipe 17 , discharged outward.
- the specific working process of the water-based strong drainage device for reinforcing the soft soil foundation of the present invention is as follows: after the water collecting pipe 10 is driven into the soft soil foundation, since there is no water in the inner cavity of the water collecting pipe 10, the inner cavity of the water collecting pipe 10 and the surrounding soft soil are A strong water pressure difference is generated. Under the action of the water pressure difference, the pore water enters each of the fan-shaped cavities 13 through the permeable membrane 12, and then flows from the top to the bottom of the collecting cylinder 20, and the pore water is collected. The water cylinder 20 is concentrated, the water level rises continuously, and then enters the inner cavity of the water collection pipe 10 through the one-way valve 14.
- the booster pump works, and the pressurized gas pipe 16 is directed.
- the lower portion of the inner portion of the water collecting pipe 10 is pressurized, so that the partitioning member 15 is moved upward, so that the water in the inner cavity of the water collecting pipe 10 is discharged outward through the drain pipe 17, and the water level in the water collecting pipe 10 is lowered, and the inner cavity of the water collecting pipe 10 is re-introduced.
- a water pressure difference is formed between the surrounding soft soil, so that the pore water flows again from the soft soil into the water collecting pipe 10, and is repeated to form a pulsed drainage, and the water accumulated in the water collecting pipe 10 is continuously discharged to the soft soil. Ground fast row from top to bottom The effect of consolidation.
- the soft soil foundation reinforcement treatment water collecting and drainage device of the present invention can also be used in combination with a vacuum preloading drainage consolidation system.
- the top end of the water collection pipe 10 is connected with a vacuum tube and an external vacuum pump (not shown).
- a negative pressure can be generated in the inner cavity of the water collecting pipe 10, so that the pore water in the soft soil base is quickly discharged into the water collecting pipe 10 under the double action of the water pressure difference and the negative pressure, and the pore water is shortened.
- the time of seepage into the water collecting pipe 10 shortens the entire drainage consolidation construction period and improves the construction efficiency.
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- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Disclosed is an enhanced catchment drainage pipe structure for soft soil foundation reinforcement treatment. The enhanced catchment drainage pipe structure comprises a catchment pipe (10) and a catchment cylinder (20), wherein a plurality of protruding edges (11) are arranged circumferentially at intervals on an external wall of the catchment pipe (10), the protruding edges (11) are formed by means of extending radially outward from the external wall of the catchment pipe (10), and a water permeable filter membrane (12) against the protruding edges (11) covers the catchment pipe (10), so that adjacent protruding edges (11), the water permeable filter membrane (12) and the external wall of the catchment pipe (10) together form a fan-shaped cavity (13), and a bottom of the catchment pipe (10) is nested inside the catchment cylinder (20), an one-way valve (14) is arranged in a bottom end of the catchment pipe (10) that is at a predetermined distance from a bottom end of the catchment cylinder (20), a separation member (15) for dividing a lumen of the catchment pipe (10) into upper and lower portions is provided inside the lumen of the catchment pipe (10), a small gap exists between the separation member (15) and an internal wall of the catchment pipe (10), and a pressurization air pipe (16) with a bottom end in communication with the lower portion of the lumen of the catchment pipe (10) is provided outside the catchment pipe (10).
Description
技术领域Technical field
本发明涉及软土地基加固工程技术领域，特别涉及一种软土地基加固处理集水强排水管结构。The invention relates to the technical field of soft soil foundation reinforcement engineering, in particular to a soft soil foundation reinforcement treatment water collecting strong drainage pipe structure.
背景技术Background technique
现有技术中软土地基加固通常都是采用预压排水固结方法，预压排水固结方法主要有真空预压和堆载预压两种方法，当采用真空预压或堆载预压等方法进行软基加固处理时，一般在软土地基中设置竖向砂井或排水板作为排水通道，在堆载料自重荷载或真空荷载预压下发生排水固结，使得软土地基中孔隙水通过排水通道向外排出，孔隙水压力慢慢消散，有效应力慢慢增长，地基强度逐渐增加，地基固结沉降量绝大部分在施工期内得以消除，从而使软土地基的承载力得到提高，减少工后沉降。In the prior art, the soft soil foundation reinforcement usually adopts the pre-pressure drainage consolidation method, and the pre-pressure drainage consolidation method mainly has two methods of vacuum preloading and preloading preloading, when vacuum preloading or stacking preloading is adopted. In the method of soft foundation reinforcement, vertical sand wells or drainage boards are generally used as drainage channels in the soft soil foundation, and drainage consolidation occurs under the self-weight load or vacuum load preload of the pile materials, so that the pore water in the soft soil foundation The drainage channel is discharged outward, the pore water pressure is slowly dissipated, the effective stress is gradually increased, the foundation strength is gradually increased, and most of the settlement consolidation of the foundation is eliminated during the construction period, thereby improving the bearing capacity of the soft soil foundation. To reduce post-construction settlement.
但是，堆载预压固结或真空预压固结时，软土中应力差的产生以及传递很慢，难以迅速实现下层的软土固结。造成工期长、造价高、工后沉降幅度大等问题。However, when preloading or vacuum preloading is carried out, the generation and transfer of the stress difference in the soft soil is slow, and it is difficult to quickly realize the consolidation of the soft soil in the lower layer. This has caused problems such as long construction period, high construction cost, and large settlement after work.
发明内容Summary of the invention
本发明所要解决的技术问题是提供一种结构简单、可实现快速排水固结、减少施工周期的软土地基加固处理集水强排水管结构。The technical problem to be solved by the invention is to provide a water-collecting drainage pipe structure which is simple in structure, can realize rapid drainage consolidation, and reduces construction period.
为解决上述技术问题所采用的技术方案：一种软土地基加固处理集水强排水管结构，包括集水管和集水筒，所述集水管外壁沿圆周方向间隔排列有多个凸棱，各所述凸棱从集水管外壁径向向外延伸构成，在所述集水管外包覆有顶在各凸棱上的透水滤膜，以使相邻凸棱、透水滤膜及集水管外壁构成扇形空腔，所述集水管底部套在集水筒内，所述集水管底端设有单向阀并与集水筒底端具有预定距离，所述集水管内腔设有用以将集水管内腔分隔成上下两部分的分隔件，所述分隔件与集水管内壁之间存在微小间隙，位于所述集水管外设有底端与集水管内腔下部分相连通的增压气管。The technical solution adopted for solving the above technical problem: a soft soil foundation reinforcement treatment water collecting strong drainage pipe structure, comprising a water collecting pipe and a water collecting cylinder, wherein the outer wall of the water collecting pipe is arranged with a plurality of ribs at intervals in the circumferential direction, each of which The rib is formed to extend radially outward from the outer wall of the water collecting pipe, and the water collecting pipe is covered with a water permeable filter film on each rib to make the adjacent rib, the water permeable filter and the outer wall of the water collecting pipe form a fan shape. a cavity, the bottom of the water collecting pipe is sleeved in the water collecting cylinder, the bottom end of the water collecting pipe is provided with a one-way valve and has a predetermined distance from the bottom end of the water collecting pipe, and the inner cavity of the water collecting pipe is provided to separate the inner cavity of the water collecting pipe The upper and lower partitions have a small gap between the partition and the inner wall of the water collecting pipe, and a pressurized air pipe having a bottom end connected to the lower portion of the inner wall of the water collecting pipe is disposed outside the water collecting pipe.
进一步地，所述集水管顶端连接有伸出的排水管。Further, the top end of the water collecting pipe is connected with an extended drain pipe.
进一步地，在所述集水管内腔设有支撑托住分隔件的托架以使分隔件与单向阀之间具有预定距离。Further, a bracket supporting the partition member is provided in the water collection tube inner cavity to have a predetermined distance between the partition member and the check valve.
进一步地，所述增压气管底端穿过集水筒、透水滤膜与集水管密封连接。Further, the bottom end of the pressurized gas pipe is sealedly connected to the water collecting pipe through the water collecting cylinder and the water permeable filter.
有益效果：此软土地基加固处理集水强排水管结构中，包覆有透水滤膜的集水管打入软土地基后，由于集水管内腔与周围软土之间存在水压力差，软土中孔隙水，在水压力差作用下，透过透水滤膜进入各扇形空腔内并经单向阀进入集水管内，当集水管内水位较高使得水压力差减小时，增压气管向集水管内腔下部分增压，使得分隔件向上移动，将集聚在集水管内腔的水挤压向外排出，降低集水管中水位，从而再次在集水管内腔与周围软土之间形成水压力差，使得孔隙水再次从软土中渗流进入集水管内，如此重复，形成脉冲式排水，达到软土地基由上至下快速排水固结的效果。Beneficial effect: In the soft soil foundation reinforcement treatment, the water collecting pipe covered with the permeable filter membrane is driven into the soft soil foundation, and the water pressure difference between the inner cavity of the water collecting pipe and the surrounding soft soil is soft. The pore water in the soil, under the action of the water pressure difference, enters the fan-shaped cavity through the permeable membrane and enters the water collecting pipe through the one-way valve. When the water level in the water collecting pipe is high, the water pressure difference is reduced, the pressurized gas pipe Pressurizing the lower part of the inner cavity of the water collecting pipe, so that the partitioning member moves upward, and the water accumulated in the inner cavity of the water collecting pipe is squeezed and discharged outward, thereby reducing the water level in the water collecting pipe, thereby again between the inner space of the water collecting pipe and the surrounding soft soil. The water pressure difference is formed, so that the pore water flows again from the soft soil into the water collecting pipe, and is repeated to form a pulsed drainage to achieve the effect of rapid drainage consolidation of the soft soil foundation from top to bottom.
附图说明DRAWINGS
下面结合附图和实施例对本发明做进一步的说明；The present invention will be further described below in conjunction with the accompanying drawings and embodiments;
图1为本发明实施例的结构示意图；1 is a schematic structural view of an embodiment of the present invention;
图2为本发明实施例的剖面结构示意图；2 is a schematic cross-sectional structural view of an embodiment of the present invention;
图3为本发明另一实施例的结构示意图。FIG. 3 is a schematic structural view of another embodiment of the present invention.
具体实施方式Detailed ways
参照图1和图2，本发明一种软土地基加固处理集水强排水管结构，包括集水管10和集水筒20，集水管10和集水筒20共同插入待处理的软土地基中，集水管10外壁沿圆周方向间隔排列有多个凸棱11，各凸棱11从集水管10外壁径向向外延伸构成，在集水管10外包覆有顶在各凸棱11上的透水滤膜12，从而在集水管10外壁上沿圆周方向形成一个个独立的扇形空腔13，各扇形空腔13由相邻凸棱11、透水滤膜12及集水管10外壁构成，软土地基中的孔隙水可以透过透水滤膜12渗入流进各扇形空腔13内。1 and 2, a soft soil foundation reinforcement treatment water collecting strong drain pipe structure, comprising a water collecting pipe 10 and a water collecting cylinder 20, and a water collecting pipe 10 and a water collecting cylinder 20 are inserted into a soft ground to be treated, and set A plurality of ribs 11 are arranged at intervals in the circumferential direction of the outer wall of the water pipe 10, and each rib 11 is formed to extend radially outward from the outer wall of the water collecting pipe 10, and the water collecting pipe 10 is covered with a water permeable filter which is placed on each rib 11 12, thereby forming a plurality of independent fan-shaped cavities 13 in the circumferential direction on the outer wall of the water collecting pipe 10, each of the fan-shaped cavities 13 being composed of adjacent ribs 11, a water permeable filter membrane 12 and an outer wall of the water collecting pipe 10, in the soft soil foundation The pore water can permeate into the respective sector-shaped cavities 13 through the permeable membrane 12.
集水管10底部插入置于集水筒20内，集水管10底端设有单向阀14并与集水筒20底端具有预定距离，单向阀14使得水或气只能从下向上进入集水管10内腔中，而不能逆向流动，渗入流进各扇形空腔13内的水向下汇聚在集水筒20内，经单向阀14进入集水管10内。其中，集水筒20顶端所处的高度高于集水管10底端所处的高度，即高于单向阀14所处的高度。The bottom of the water collecting pipe 10 is inserted into the water collecting cylinder 20. The bottom end of the water collecting pipe 10 is provided with a one-way valve 14 and has a predetermined distance from the bottom end of the water collecting cylinder 20. The one-way valve 14 allows water or gas to enter the water collecting pipe only from the bottom to the top. In the inner chamber 10, the flow cannot be reversed, and the water that has permeated into the fan-shaped cavities 13 converges downwardly in the water collecting cylinder 20, and enters the water collecting tube 10 through the check valve 14. The height of the top end of the water collecting cylinder 20 is higher than the height of the bottom end of the water collecting pipe 10, that is, higher than the height of the one-way valve 14.
集水管10内腔设有可以上下移动的分隔件15，分隔件15与集水管10内壁之间存在微小间隙，并非密封连接，分隔件15将集水管10的内腔分隔成上下两部分，位于集水管10外设有底端与集水管10内腔下部分相连通的增压气管16，增压气管16底端依次穿过集水筒20、透水滤膜12与集水管10密封连接，连接位置处于分隔件15与单向阀14之间，作为优选，集水管10内腔设有支撑托住分隔件的托架（未画出），托架能使分隔件15与单向阀14之间具有预定距离。增压气管16顶端伸出与外部的增压泵（未画出）相连，增压泵工作，增压气流经增压气管16向集水管10的内腔下部分增压，在增压气流作用下，驱动分隔件15向上移动，虽然分隔件15与集水管10内壁之间存在微小间隙，由于微小间隙的间隙很小，在瞬间增压作用下，增压气流不能全部经微小间隙流出，增压气流仍能带动分隔件15向上移动。The inner cavity of the water collecting pipe 10 is provided with a partitioning member 15 which can be moved up and down. There is a slight gap between the partitioning member 15 and the inner wall of the water collecting pipe 10, which is not a sealed connection. The partitioning member 15 divides the inner cavity of the water collecting pipe 10 into upper and lower parts, and is located at The water collecting pipe 10 is provided with a pressurized air pipe 16 whose bottom end is connected with the lower portion of the inner cavity of the water collecting pipe 10. The bottom end of the pressurized air pipe 16 is sequentially passed through the water collecting cylinder 20, and the water permeable filter membrane 12 is sealed and connected with the water collecting pipe 10, and the connection position is Between the partition member 15 and the one-way valve 14, preferably, the inner space of the water collection tube 10 is provided with a bracket (not shown) supporting the partition member, and the bracket enables the partition member 15 and the check valve 14 to be Has a predetermined distance. The top end of the pressurized air pipe 16 is extended and connected to an external booster pump (not shown), and the booster pump works, and the pressurized air flow is pressurized by the pressurized air pipe 16 to the lower portion of the inner wall of the water collecting pipe 10, and acts on the pressurized air flow. Next, the driving partition 15 is moved upward. Although there is a slight gap between the partitioning member 15 and the inner wall of the water collecting pipe 10, since the gap of the small gap is small, under the action of instantaneous supercharging, the pressurized airflow cannot flow out through the small gap, increasing. The pressurized air flow still drives the partition 15 to move upward.
集水管10顶端连接有向外伸出的排水管17，当集水管10内的水位较高时，分隔件15向上移动，能挤压推动位于集水管10内腔上部分的水经排水管17，向外排出。The top end of the water collecting pipe 10 is connected with an outwardly extending drain pipe 17. When the water level in the water collecting pipe 10 is high, the partitioning member 15 moves upward to squeeze the water located in the upper portion of the inner cavity of the water collecting pipe 10 through the drain pipe 17 , discharged outward.
本发明软土地基加固处理集水强排水装置的具体工作过程如下：当集水管10打入软土地基后，由于集水管10内腔不存在水，集水管10内腔与周围软土之间会产生强大的水压力差，在水压力差的作用下，孔隙水会经透过透水滤膜12进入各扇形空腔13内，再从上向下流向集水筒体20内，孔隙水在集水筒体20内汇聚，水位不断上升，然后经单向阀14进入集水管10内腔，当集水管10内的水位逐渐上升使得水压力差减小时，增压泵工作，经增压气管16向集水管10的内腔下部分增压，使得分隔件15向上移动，从而将集水管10内腔的水经排水管17向外排出，降低集水管10内的水位，重新在集水管10内腔与周围软土之间形成水压力差，使得孔隙水再次从软土中渗流进入集水管10内，如此重复，形成脉冲式排水，将集水管10内集聚的水不断向外排出，达到软土地基由上至下快速排水固结的效果。The specific working process of the water-based strong drainage device for reinforcing the soft soil foundation of the present invention is as follows: after the water collecting pipe 10 is driven into the soft soil foundation, since there is no water in the inner cavity of the water collecting pipe 10, the inner cavity of the water collecting pipe 10 and the surrounding soft soil are A strong water pressure difference is generated. Under the action of the water pressure difference, the pore water enters each of the fan-shaped cavities 13 through the permeable membrane 12, and then flows from the top to the bottom of the collecting cylinder 20, and the pore water is collected. The water cylinder 20 is concentrated, the water level rises continuously, and then enters the inner cavity of the water collection pipe 10 through the one-way valve 14. When the water level in the water collection pipe 10 gradually rises to reduce the water pressure difference, the booster pump works, and the pressurized gas pipe 16 is directed. The lower portion of the inner portion of the water collecting pipe 10 is pressurized, so that the partitioning member 15 is moved upward, so that the water in the inner cavity of the water collecting pipe 10 is discharged outward through the drain pipe 17, and the water level in the water collecting pipe 10 is lowered, and the inner cavity of the water collecting pipe 10 is re-introduced. A water pressure difference is formed between the surrounding soft soil, so that the pore water flows again from the soft soil into the water collecting pipe 10, and is repeated to form a pulsed drainage, and the water accumulated in the water collecting pipe 10 is continuously discharged to the soft soil. Ground fast row from top to bottom The effect of consolidation.
参照图3，当然，本发明软土地基加固处理集水强排水装置还可以与真空预压排水固结系统配合使用，具体地，集水管10的顶端连接有真空管，与外部的真空泵（未画出）相连，真空泵工作时，能在集水管10内腔产生负压，使得软土地基中的孔隙水在水压力差和负压的双重作用下，迅速排向集水管10内，缩短孔隙水渗流进入集水管10的时间，从而缩短整个排水固结施工周期，提高施工效率。Referring to FIG. 3, of course, the soft soil foundation reinforcement treatment water collecting and drainage device of the present invention can also be used in combination with a vacuum preloading drainage consolidation system. Specifically, the top end of the water collection pipe 10 is connected with a vacuum tube and an external vacuum pump (not shown). When connected, when the vacuum pump is working, a negative pressure can be generated in the inner cavity of the water collecting pipe 10, so that the pore water in the soft soil base is quickly discharged into the water collecting pipe 10 under the double action of the water pressure difference and the negative pressure, and the pore water is shortened. The time of seepage into the water collecting pipe 10 shortens the entire drainage consolidation construction period and improves the construction efficiency.
上面结合附图对本发明的实施方式作了详细说明，但是本发明不限于上述实施方式，在所述技术领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and can be made without departing from the spirit of the invention within the scope of the knowledge of those skilled in the art. Various changes.
Claims (4)
- 一种软土地基加固处理集水强排水管结构，其特征在于：包括集水管和集水筒，所述集水管外壁沿圆周方向间隔排列有多个凸棱，各所述凸棱从集水管外壁径向向外延伸构成，在所述集水管外包覆有顶在各凸棱上的透水滤膜，以使相邻凸棱、透水滤膜及集水管外壁构成扇形空腔，所述集水管底部套在集水筒内，所述集水管底端设有单向阀并与集水筒底端具有预定距离，所述集水管内腔设有用以将集水管内腔分隔成上下两部分的分隔件，所述分隔件与集水管内壁之间存在微小间隙，位于所述集水管外设有底端与集水管内腔下部分相连通的增压气管。 A soft soil foundation reinforcement treatment water collecting strong drainage pipe structure, comprising: a water collecting pipe and a water collecting cylinder, wherein the outer wall of the water collecting pipe is arranged with a plurality of ribs at intervals in a circumferential direction, and each of the ribs is from the outer wall of the water collecting pipe Radially extending outwardly, the water collecting pipe is covered with a water permeable filter film on each rib, so that adjacent ribs, water permeable filter membrane and outer wall of the water collecting pipe form a fan-shaped cavity, the water collecting pipe The bottom is sleeved in the water collecting cylinder, the bottom end of the water collecting pipe is provided with a one-way valve and has a predetermined distance from the bottom end of the water collecting cylinder, and the water collecting tube inner cavity is provided with a partitioning member for separating the inner wall of the water collecting pipe into upper and lower parts. There is a small gap between the partition and the inner wall of the water collecting pipe, and a pressurized air pipe is provided outside the water collecting pipe and has a bottom end communicating with a lower portion of the inner cavity of the water collecting pipe.
- 根据权利要求1所述的软土地基加固处理集水强排水管结构，其特征在于：所述集水管顶端连接有伸出的排水管。The soft soil foundation reinforcement treatment water collecting strong drain pipe structure according to claim 1, wherein the water collecting pipe top end is connected with an extended drain pipe.
- 根据权利要求1所述的软土地基加固处理集水强排水管结构，其特征在于：在所述集水管内腔设有支撑托住分隔件的托架以使分隔件与单向阀之间具有预定距离。The soft soil foundation reinforcement treatment water collecting strong drain pipe structure according to claim 1, wherein a bracket supporting the partition member is disposed in the water collecting tube inner cavity to allow a space between the partition member and the check valve Has a predetermined distance.
- 根据权利要求1所述的软土地基加固处理集水强排水管结构，其特征在于：所述增压气管底端穿过集水筒、透水滤膜与集水管密封连接。The soft soil foundation reinforcement treatment water collecting strong drain pipe structure according to claim 1, wherein the bottom end of the pressurized gas pipe is sealedly connected to the water collecting pipe through the water collecting cylinder and the water permeable filter membrane.
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| CN201710867113.5A CN107604896B (en) | 2017-09-22 | 2017-09-22 | Soft soil foundation reinforcement treatment catchment strong drainage pipe structure |
| CN201710867113.5 | 2017-09-22 |
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| WO2019056474A1 true WO2019056474A1 (en) | 2019-03-28 |
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| CN110055947A (en) * | 2019-04-23 | 2019-07-26 | 东北大学 | A kind of mud and soft soil foundation in-situ solidifying and discharge structure |
| CN111997030B (en) * | 2020-08-11 | 2021-08-10 | 广东劲拓建设工程有限公司 | Soft soil reinforcing and curing method |
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| CN107604896B (en) | 2020-06-16 |
| CN107604896A (en) | 2018-01-19 |
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