WO2020215419A1 - 一种淤泥与软土地基原位固化与排水结构 - Google Patents

一种淤泥与软土地基原位固化与排水结构 Download PDF

Info

Publication number
WO2020215419A1
WO2020215419A1 PCT/CN2019/087741 CN2019087741W WO2020215419A1 WO 2020215419 A1 WO2020215419 A1 WO 2020215419A1 CN 2019087741 W CN2019087741 W CN 2019087741W WO 2020215419 A1 WO2020215419 A1 WO 2020215419A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
drainage
water
soft soil
silt
Prior art date
Application number
PCT/CN2019/087741
Other languages
English (en)
French (fr)
Inventor
王述红
孙子涵
王鹏宇
姚骞
何坚
Original Assignee
东北大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 东北大学 filed Critical 东北大学
Publication of WO2020215419A1 publication Critical patent/WO2020215419A1/zh

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/10Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains

Definitions

  • the invention belongs to the technical field of in-situ solidification and drainage of silt and soft ground, and specifically relates to an in-situ solidification and drainage structure of silt and soft ground.
  • reclamation projects and many artificial islands have gradually appeared in coastal areas and inland areas.
  • the source of the filling materials used in the reclamation area and artificial island projects mainly adopts soft soil, super soft soil and silty soil.
  • Chinese patent CN208183722U proposes an in-situ solidification structure of silt and soft soil foundation, but its drainage capacity has certain limitations.
  • the present invention provides an in-situ solidification and drainage structure of silt and soft soil foundation.
  • the technical solution is as follows:
  • An in-situ solidification and drainage structure of silt and soft soil comprising a hardened layer, a solidified layer, a drainage layer, and a silt layer arranged from top to bottom.
  • the drainage layer includes a pump, a drainage pipe, and a collection with a top opening.
  • the water tank and the water leakage plate covering the top of the water collection tank, the water leakage plate is evenly distributed with water leakage holes, one end of the drainage pipe is arranged in the water collection tank, and the other end of the drainage pipe is connected with the pumping end of the water pump.
  • the hardened layer includes a gravel layer, a concrete layer, and an artificial soil layer that are sequentially arranged from top to bottom.
  • the solidified layer adopts a plate body composite foundation structure, and the thickness of the solidified layer is 0.5m-8m.
  • the solidified layer is formed by mixing in-situ soil and cement, wherein the mass ratio of the cement is 15%-18%.
  • the water leakage plate, water collection tank and drain pipe are all made of stainless steel.
  • the water pump is arranged above the ground.
  • the invention is mainly suitable for the in-situ reinforcement of small-area soft soil foundations.
  • the total area of the foundation is controlled within 200 square meters.
  • the invention provides a drainage layer.
  • the water above the drainage layer can enter the water collection tank through the leak hole, and finally discharged by the pump. It has the advantages of timely drainage, simple structure and convenient application, which overcomes the traditional soft soil foundation solidification method. The construction is complicated, the drainage is not timely, and the cost is high. Disadvantages.
  • Figure 1 is a schematic diagram of the structure of the present invention
  • Figure 2 is a schematic diagram of the structure of the leakage plate of the present invention.
  • hardened layer 1 hardened layer 1; solidified layer 2; water collection tank 3; water leakage plate 4; water leakage hole 5; drain pipe 6; pump 7; silty layer 8.
  • the present invention provides an in-situ solidification and drainage structure for silt and soft soil foundations, including a hardened layer 1, a solidified layer 2, a drainage layer and a silty layer 8 arranged in sequence from top to bottom
  • the drainage layer includes a water pump 7, a drainage pipe 6, a water collection tank 3 with an open top, and a water leakage plate 4 covering the top of the water collection tank 3.
  • the water leakage plate 4 is evenly distributed with water leakage holes 5, and one end of the drainage pipe 6 The other end of the drain pipe 6 is connected to the pumping end of the water pump 7.
  • the hardened layer 1 includes a gravel layer, a concrete layer, and an artificial soil layer that are sequentially arranged from top to bottom.
  • the solidified layer 2 adopts a plate-body composite foundation structure, which can effectively improve the bearing capacity of the foundation, and is extremely helpful for spreading the pressure on the upper part of the foundation, thereby effectively eliminating major problems such as delayed drainage of soft soil foundation and large foundation settlement.
  • the thickness of the cured layer 2 is 0.5 m to 8 m.
  • the solidified layer 2 is formed by mixing in-situ soil and cement, wherein the mass ratio of the cement is 15%-18%.
  • the water leakage plate 4, the water collection tank 3 and the drain pipe 6 are all made of stainless steel to avoid prolonged soaking and rust.
  • the water pump 7 is installed above the ground to facilitate the drainage of water to other places and to facilitate maintenance.
  • the pore water in the soft soil can enter the water collection tank 3 inside the drainage layer through the water leakage hole 5, and finally be smoothly discharged through the drainage pipe 6 and the pump 7.

Abstract

本发明属于淤泥与软土地基原位固化与排水研究技术领域,公开了一种淤泥与软土地基原位固化与排水结构,包括自上而下依次设置的硬化层、固化层、排水层以及淤泥质层,所述排水层包括抽水泵、排水管、顶部开口的集水箱和覆盖在集水箱顶部的漏水板,所述漏水板上均匀分布有漏水孔,排水管的一端设置于集水箱内,排水管的另一端与抽水泵的抽水端连通;本发明主要适用于小面积软土地基的原位加固,地基占地总面积控制范围在200平方米之内,与现有的软土地基原位固化方法相比,本发明通过设置排水层,排水层以上的水分可通过漏水孔进入集水箱内,最后经抽水泵排出,具有排水及时,结构简单,应用方便等优点。

Description

一种淤泥与软土地基原位固化与排水结构 技术领域
本发明属于淤泥与软土地基原位固化与排水研究技术领域,具体涉及一种淤泥与软土地基原位固化与排水结构。
背景技术
随着现代人民对生活质量与生活水平的要求日益增高,在沿海地区及内地区域逐渐出现了填海造地和诸多人工岛屿的工程。而填海造地区域以及人工岛屿工程所用填土材料来源主要采用软土、超软土及淤泥质土等为主。
对于这些新填土以及所处地区原位海滩土多为承载能力极低的淤泥质土,并因其强度极低,施工过程中传统方法不好实施与进行。无法直接达到使用的承载力要求,无法进行预计道路、建筑等工程的施工,因其面临着软弱地基处理的问题。
中国专利CN208183722U提出了一种淤泥与软土地基原位地基固化结构,但其排水能力具有一定的局限性问题。
发明概述
技术问题
问题的解决方案
技术解决方案
为了解决现有技术存在的问题,本发明提供一种淤泥与软土地基原位固化与排水结构,技术方案如下:
一种淤泥与软土地基原位固化与排水结构,包括自上而下依次设置的硬化层、固化层、排水层以及淤泥质层,所述排水层包括抽水泵、排水管、顶部开口的集水箱和覆盖在集水箱顶部的漏水板,所述漏水板上均匀分布有漏水孔,排水管的一端设置于集水箱内,排水管的另一端与抽水泵的抽水端连通。
所述硬化层包括自上而下依次设置的碎石层、混凝土层和人工填土层。
所述固化层采用板体复合地基结构,固化层的厚度为0.5m~8m。
所述固化层由原位土与水泥掺拌而成,其中水泥所占的质量比为15%~18%。
所述漏水板、集水箱和排水管均采用不锈钢材质制成。
所述抽水泵设置于地面以上。
发明的有益效果
有益效果
与现有技术相比,本发明的有益效果是:
本发明主要适用于小面积软土地基的原位加固,地基占地总面积控制范围在200平方米之内,与现有的软土地基原位固化方法相比,本发明通过设置排水层,排水层以上的水分可通过漏水孔进入集水箱内,最后经抽水泵排出,具有排水及时,结构简单,应用方便等优点,克服了传统软土地基固化方法施工复杂、排水不及时、成本大等缺点。
对附图的简要说明
附图说明
图1为本发明的结构示意图;
图2为本发明漏水板的结构示意图。
其中:硬化层1;固化层2;集水箱3;漏水板4;漏水孔5;排水管6;抽水泵7;淤泥质层8。
发明实施例
本发明的实施方式
需要说明,本发明实施例中所有方向性指示(诸如上、下、左、右、前、后......)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
如图1和图2所示,本发明提供了一种淤泥与软土地基原位固化与排水结构,包括自上而下依次设置的硬化层1、固化层2、排水层以及淤泥质层8,所述排水层包括抽水泵7、排水管6、顶部开口的集水箱3和覆盖在集水箱3顶部的漏水板4,所述漏水板4上均匀分布有漏水孔5,排水管6的一端设置于集水箱3内,排水管6 的另一端与抽水泵7的抽水端连通。
所述硬化层1包括自上而下依次设置的碎石层、混凝土层和人工填土层。
所述固化层2采用板体复合地基结构,能够有效提高地基承载力,并且对于扩散地基上部压力有极大的帮助,进而有效消除软土地基排水不及时与地基沉降量较大等重大问题,固化层2的厚度为0.5m~8m。
所述固化层2由原位土与水泥掺拌而成,其中水泥所占的质量比为15%~18%。
所述漏水板4、集水箱3和排水管6均采用不锈钢材质制成,避免长时间浸泡生锈。
所述抽水泵7设置于地面以上,方便将水排至他处,同时方便检修。
本发明通过设置排水层,软土中孔隙水可通过漏水孔5进入排水层内部的集水箱3中,最后通过排水管6及抽水泵7顺利排出。
以上实施例仅用以说明本发明的技术方案而非对其限制,尽管参照上述实施例对本发明进行了详细说明,领域的普通技术人员应当理解:依然可以对本发明的具体实施方式进行修改或者等同替换,而未脱离本发明精神和范围的任何修改或者等同替换,其均应涵盖在本权利要求范围当中。

Claims (6)

  1. 一种淤泥与软土地基原位固化与排水结构,其特征在于,包括自上而下依次设置的硬化层、固化层、排水层以及淤泥质层,所述排水层包括抽水泵、排水管、顶部开口的集水箱和覆盖在集水箱顶部的漏水板,所述漏水板上均匀分布有漏水孔,排水管的一端设置于集水箱内,排水管的另一端与抽水泵的抽水端连通。
  2. 根据权利要求1所述的一种淤泥与软土地基原位固化与排水结构,其特征在于,所述硬化层包括自上而下依次设置的碎石层、混凝土层和人工填土层。
  3. 根据权利要求1所述的一种淤泥与软土地基原位固化与排水结构,其特征在于,所述固化层采用板体复合地基结构,固化层的厚度为0.5m~8m。
  4. 根据权利要求1所述的一种淤泥与软土地基原位固化与排水结构,其特征在于,所述固化层由原位土与水泥掺拌而成,其中水泥所占的质量比为15%~18%。
  5. 根据权利要求1所述的一种淤泥与软土地基原位固化与排水结构,其特征在于,所述漏水板、集水箱和排水管均采用不锈钢材质制成。
  6. 根据权利要求1所述的一种淤泥与软土地基原位固化与排水结构,其特征在于,所述抽水泵设置于地面以上。
PCT/CN2019/087741 2019-04-23 2019-05-21 一种淤泥与软土地基原位固化与排水结构 WO2020215419A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910328295.8A CN110055947A (zh) 2019-04-23 2019-04-23 一种淤泥与软土地基原位固化与排水结构
CN201910328295.8 2019-04-23

Publications (1)

Publication Number Publication Date
WO2020215419A1 true WO2020215419A1 (zh) 2020-10-29

Family

ID=67320196

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/087741 WO2020215419A1 (zh) 2019-04-23 2019-05-21 一种淤泥与软土地基原位固化与排水结构

Country Status (2)

Country Link
CN (1) CN110055947A (zh)
WO (1) WO2020215419A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113737773A (zh) * 2021-09-26 2021-12-03 同济大学 一种淤泥质土疏干降水系统及施工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111305186B (zh) * 2020-02-20 2021-09-03 浙江省疏浚工程有限公司 一种双层真空预压加固软土地基结构
CN111560943B (zh) * 2020-05-22 2021-08-27 赵汗青 一种浅层软土地基固化结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059063A (en) * 1989-11-08 1991-10-22 Ohbayashi Corporation Method of protecting underground structures in ground liable to be liquefied
KR20120139874A (ko) * 2011-06-20 2012-12-28 김숙미 통수 개수로와 투수성 배수재를 이용한 연약지반 집배수 시스템
CN205839816U (zh) * 2016-06-15 2016-12-28 广州容柏生建筑结构设计事务所 一种地下室底板下集水排水系统
CN205839818U (zh) * 2016-06-15 2016-12-28 广州容柏生建筑结构设计事务所 一种地下室底板下水压释放抗浮系统
CN208183722U (zh) * 2018-03-13 2018-12-04 天津市三川恒泰科技有限公司 一种淤泥与软土地基原位固化地基结构
CN208309564U (zh) * 2018-05-17 2019-01-01 中国建筑第二工程局有限公司 一种地基淤泥简易排水装置
CN109537609A (zh) * 2018-12-28 2019-03-29 青岛理工大学 一种基坑回填的自然排水系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202706015U (zh) * 2012-05-25 2013-01-30 靳宝林 一种用于软地基处理的排水装置
CN204875755U (zh) * 2015-06-04 2015-12-16 杭州特诚地基工程有限公司 一种排水体和固化层组合地基结构
CN206902500U (zh) * 2017-04-25 2018-01-19 浙江中景市政园林建设有限公司 一种快速排水路面
CN107604896B (zh) * 2017-09-22 2020-06-16 广州市沛基工程材料有限公司 一种软土地基加固处理集水强排水管结构
CN108708366A (zh) * 2018-05-22 2018-10-26 四川城凯特建设工程有限公司 一种软基加固的施工方法及集水排水装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5059063A (en) * 1989-11-08 1991-10-22 Ohbayashi Corporation Method of protecting underground structures in ground liable to be liquefied
KR20120139874A (ko) * 2011-06-20 2012-12-28 김숙미 통수 개수로와 투수성 배수재를 이용한 연약지반 집배수 시스템
CN205839816U (zh) * 2016-06-15 2016-12-28 广州容柏生建筑结构设计事务所 一种地下室底板下集水排水系统
CN205839818U (zh) * 2016-06-15 2016-12-28 广州容柏生建筑结构设计事务所 一种地下室底板下水压释放抗浮系统
CN208183722U (zh) * 2018-03-13 2018-12-04 天津市三川恒泰科技有限公司 一种淤泥与软土地基原位固化地基结构
CN208309564U (zh) * 2018-05-17 2019-01-01 中国建筑第二工程局有限公司 一种地基淤泥简易排水装置
CN109537609A (zh) * 2018-12-28 2019-03-29 青岛理工大学 一种基坑回填的自然排水系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113737773A (zh) * 2021-09-26 2021-12-03 同济大学 一种淤泥质土疏干降水系统及施工方法

Also Published As

Publication number Publication date
CN110055947A (zh) 2019-07-26

Similar Documents

Publication Publication Date Title
WO2020215419A1 (zh) 一种淤泥与软土地基原位固化与排水结构
CN105780719B (zh) 现役驳坎护岸墙加高施工方法
CN107905249A (zh) 一种新型抗震支挡回填复合结构
CN104846809A (zh) 一种能排水并增大摩阻力的预制管桩及其施工方法
CN207717066U (zh) 一种利用暗涵工程的水平位移及沉降变形观测两用基点
CN212223893U (zh) 一种软土地质基坑肥槽加固结构
CN207092080U (zh) 一种采用高压旋喷桩的mc劲性复合桩
CN103774516B (zh) 软基挖方路基的底基层稳定处理方法
CN111321732A (zh) 一种在高压旋喷桩中置入预制桩的复合地基承载结构
CN108396728B (zh) 用于填海筑岛能排水的多功能管桩的施工装置及施工方法
Nguyen et al. Application research of high pressure jet grouting pile in an underground engineering in Vietnam
CN206545257U (zh) 一种新型绿化带蓄水结构
CN110144918A (zh) 地下建筑降水井防渗封堵施工方法
CN104746507B (zh) 一种建筑垃圾再生排水cfg桩地基及其施工方法
CN204898645U (zh) 一种建筑垃圾再生排水cfg桩地基
CN208578025U (zh) 一种用于填海筑岛能排水的多功能管桩的施工装置
CN207376644U (zh) 一种新型抗震支挡回填复合结构
CN207260086U (zh) 一种湖底硬化结构
CN112012216A (zh) 提高钢管桩承载力的双液旋喷加固方法
CN206971373U (zh) 一种基坑内支撑或斜抛撑穿越地下室外墙防渗漏结构
CN207362837U (zh) 一种钢管混凝土载体桩
CN214401735U (zh) 一种路基注浆装置
CN105155578A (zh) 复杂地质及环境接入地铁既有支护体系施工方法
CN204780965U (zh) 复杂地质及环境接入地铁既有支护体系施工结构
CN104929314B (zh) 牛腿柱混凝土施工方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19925780

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19925780

Country of ref document: EP

Kind code of ref document: A1