CN102518136A - Flexible reinforced combined protection structure for preventing and treating humidifying damage of soft rock strongly weathered zone - Google Patents

Flexible reinforced combined protection structure for preventing and treating humidifying damage of soft rock strongly weathered zone Download PDF

Info

Publication number
CN102518136A
CN102518136A CN2011103856655A CN201110385665A CN102518136A CN 102518136 A CN102518136 A CN 102518136A CN 2011103856655 A CN2011103856655 A CN 2011103856655A CN 201110385665 A CN201110385665 A CN 201110385665A CN 102518136 A CN102518136 A CN 102518136A
Authority
CN
China
Prior art keywords
soft rock
layer
weathered
flexible reinforcement
zone
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN2011103856655A
Other languages
Chinese (zh)
Inventor
刘龙武
张锐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha University of Science and Technology
Original Assignee
Changsha University of Science and Technology
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 Changsha University of Science and Technology filed Critical Changsha University of Science and Technology
Priority to CN2011103856655A priority Critical patent/CN102518136A/en
Publication of CN102518136A publication Critical patent/CN102518136A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Revetment (AREA)

Abstract

本发明公开了一种防治软岩强风化带湿化破坏的柔性加筋组合防护结构,边坡上部的残积土层(1)采用在开挖面上铺设有第一层土工布(7)及铺植壤土(6)并植草;边坡中部的强风化岩带(2)的软岩采用柔性加筋支挡结构进行加固;边坡下部的弱风化软岩(3)采用三维植草(5)防护。本发明是一种边坡稳定又极大地降低工程量且技术简便、施工速度快、经济环保的用于抗软岩边坡强风化岩带湿化破坏的柔性加筋支挡组合防护结构。

Figure 201110385665

The present invention discloses a flexible reinforced combined protective structure for preventing and controlling the wetting damage of a strongly weathered zone of soft rock. The residual soil layer (1) at the upper part of the slope is provided with a first layer of geotextile (7) and loam (6) and grass on the excavation surface; the soft rock of the strongly weathered rock zone (2) in the middle part of the slope is reinforced by a flexible reinforced retaining structure; the weakly weathered soft rock (3) at the lower part of the slope is protected by three-dimensional grass planting (5). The present invention is a flexible reinforced retaining combined protective structure for preventing the wetting damage of a strongly weathered zone of a soft rock slope, which has stable slopes and greatly reduces the amount of engineering work, and is simple in technology, fast in construction speed, economical and environmentally friendly.

Figure 201110385665

Description

一种防治软岩强风化带湿化破坏的柔性加筋组合防护结构A Flexible Reinforced Composite Protective Structure for Preventing Wet Damage in Soft Rock Strongly Weathered Zone

技术领域 technical field

本发明涉及一种公路路堑边坡支挡与防护结构物,特别是涉及一种防治软岩强风化带湿化破坏的柔性加筋组合防护结构。The invention relates to a retaining and protective structure for road cutting slopes, in particular to a flexible reinforced composite protective structure for preventing and controlling wet damage in soft rock strong weathering zone.

背景技术 Background technique

红层软岩在适宜风化部位常常易形成一个厚度在6m-10m的残积土和强风化岩带,当软岩强风化岩带含有局部滞水时,强风化岩带的红层软岩常被湿化,一旦开挖,则常以强风化岩带为剪出口,发生浅层坍塌破坏。有时,也会由于软岩强风化岩带在工后被降雨入渗的湿化造成该类坍塌破坏。目前为防止该类开挖边坡的破坏常采用锚杆框架梁对边坡进行加固,但锚杆框架梁加固不仅工艺复杂、施工速度慢、造价高,有时仍然会因锚杆锚固力失效发生破坏。软岩风化边坡的强风化岩带湿化破坏,主要是由于在位于边坡残积土层下的强风化岩带的软岩被湿化后抗剪强度降低,从而导致开挖边坡沿强风化岩带发生剪切滑动破坏。Red-bed soft rocks are often prone to form a residual soil and strongly weathered rock zone with a thickness of 6m-10m in the suitable weathering position. When the soft rock strong-weathered rock zone contains local water retention, the red-bed soft rock in the strong Wet, once excavated, the strong weathered rock zone is often used as the shear outlet, causing shallow collapse and damage. Sometimes, this type of collapse and damage is also caused by the wetting of the soft rock and strong weathered rock belt after the construction is infiltrated by rainfall. At present, in order to prevent the damage of this type of excavation slope, the anchor frame beam is often used to reinforce the slope, but the reinforcement of the anchor frame beam is not only complicated in process, slow in construction speed, and high in cost, but sometimes it still occurs due to the failure of the anchor force. destroy. The wetting failure of the strongly weathered rock zone of the soft rock weathered slope is mainly due to the decrease of the shear strength of the soft rock in the strongly weathered rock zone under the residual soil layer of the slope after wetting, which leads to the excavation of the slope along the strong wind Shear-slip failure occurred in the rock zone.

发明内容 Contents of the invention

本发明所要解决的技术问题是提供一种边坡稳定又极大地降低工程量且技术简便、施工速度快、经济环保的用于抗软岩边坡强风化岩带湿化破坏的柔性加筋支挡组合防护结构。The technical problem to be solved by the present invention is to provide a flexible reinforced support for anti-wetting damage of soft rock slope with strong weathered rock belt, which is stable in slope, greatly reduces engineering quantity, simple in technology, fast in construction speed, economical and environmentally friendly. Block combined protective structure.

为了解决上述技术问题,本发明提供的防治软岩强风化带湿化破坏的柔性加筋组合防护结构,边坡上部的残积土层采用在开挖面上铺设有第一单层土工布,在所述的第一单层土工布上铺有植壤土并植草;边坡中部的强风化岩带的软岩采用柔性加筋支挡结构进行加固;边坡下部的弱风化软岩采用三维植草防护。In order to solve the above-mentioned technical problems, the present invention provides a flexible reinforced combined protective structure for preventing and controlling the wet damage of the soft rock strong weathering zone. The first single-layer geotextile is covered with planting loam and grass; the soft rock in the strongly weathered rock zone in the middle of the slope is reinforced with a flexible reinforced support structure; the weakly weathered soft rock in the lower part of the slope is protected by three-dimensional grass planting .

所述的柔性加筋支挡结构的结构是在所述的强风化岩带的底部设置透水基础层,所述的透水基础层由碎石土压实层组成,在所述的碎石土下开挖有渗沟,所述的渗沟通过在防水土工布上铺设有软式透水管并充填有碎石组成;在整个所述的柔性加筋支挡结构中铺设有筋材,每层的所述的筋材都超过所述的柔性加筋支挡结构的宽度,反包至上一层,并与上一层的筋材连接,每层所述的筋材用所开挖的回填土回填压实,在所述的柔性加筋支挡结构的顶部设有平台及边沟,所述的平台顶部由第二单层土工布加植壤土构成。The structure of the flexible reinforced retaining structure is to set a permeable base layer at the bottom of the strongly weathered rock belt, and the permeable base layer is composed of a compacted gravel soil layer. A seepage trench is excavated, and the seepage is composed of soft permeable pipes laid on the waterproof geotextile and filled with gravel; reinforcements are laid in the entire flexible reinforced support structure, and the said The reinforcements of each layer exceed the width of the flexible reinforced retaining structure, are turned up to the upper layer, and are connected with the reinforcements of the upper layer, and the reinforcements of each layer are backfilled and compacted with the excavated backfill soil , a platform and a side ditch are arranged on the top of the flexible reinforced retaining structure, and the top of the platform is composed of a second single-layer geotextile and planted loam.

所述的筋材为土工格栅。The reinforcement material is geogrid.

采用上述技术方案的防治软岩强风化带湿化破坏的柔性加筋组合防护结构,仅在强风化岩带使用柔性加筋支挡结构加固,在软岩边坡的残积土层和弱风化岩带则分别采用植草和三维植草防护,加固和防护的工程措施针对性强,既保证了边坡稳定又极大地降低了柔性加筋支挡结构的工程量,与目前有效的锚杆框架梁方案比较,具有技术简便、施工速度快、经济环保等优点。The flexible-reinforced combined protective structure for the prevention and treatment of wet damage in the soft rock strong weathered zone adopts the above-mentioned technical scheme. The belt is protected by grass planting and three-dimensional grass planting respectively. The engineering measures of reinforcement and protection are highly targeted, which not only ensures the stability of the slope but also greatly reduces the engineering volume of the flexible reinforced retaining structure. It is different from the current effective anchor frame beam scheme. Compared with other methods, it has the advantages of simple technology, fast construction speed, economy and environmental protection.

综上所述,本发明是一种边坡稳定又极大地降低工程量且技术简便、施工速度快、经济环保的用于抗软岩边坡强风化岩带湿化破坏的柔性加筋支挡组合防护结构。To sum up, the present invention is a kind of flexible reinforced support for anti-wetting damage of soft rock slope with strong weathered rock zone, which is stable in slope, greatly reduces engineering quantity, has simple technology, fast construction speed, and is economical and environmentally friendly. Combined protective structure.

附图说明 Description of drawings

图1是本发明的结构示意图。Fig. 1 is a schematic structural view of the present invention.

具体实施方式 Detailed ways

下面结合附图和具体实施方式对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

参见图1,根据软岩风化边坡的强风化岩带湿化破坏,主要是由于在位于边坡残积土层1下的强风化岩带2的软岩被湿化后抗剪强度降低,从而导致开挖边坡沿强风化岩带发生剪切滑动破坏的规律,本发明采用组合方案来加以防护,该组合方案特征是:边坡上部的残积土层1自身能稳定,因此采用植草防护,即在开挖面上铺设一第一单层土工布7,再在第一单层土工布7一铺植壤土6并植草;边坡中部的强风化岩带2的软岩采用柔性加筋支挡结构进行加固;边坡下部的弱风化软岩采用三维植草5防护,边坡下部设有路面边沟13。柔性加筋支挡结构具有如下特征:柔性加筋支挡结构的底层为透水基础层,透水基础层由碎石土8压实层组成,透水基础层设置在强风化岩带2的底部,透水基础层下开挖有渗沟,渗沟通过在防水土工布4上铺设软式透水管14并充填碎石15形成;在整个柔性加筋支挡结构中铺设筋材9,筋材9采用土工格栅,每层的筋材9都超过渗沟的宽度,反包至上一层,并与上一层的筋材9连接,每层筋材9用所开挖的回填土10回填压实,在柔性加筋支挡结构顶部设有平台及截水沟12,平台顶部由第二单层土工布11加植壤土构成。Referring to Figure 1, according to the wetting failure of the strongly weathered rock zone of the soft rock weathered slope, it is mainly due to the decrease of the shear strength of the soft rock in the strongly weathered rock zone 2 located under the residual soil layer 1 of the slope after wetting, so that The law of shear sliding failure of the excavated slope along the strongly weathered rock belt is protected by a combined scheme in the present invention. The characteristic of the combined scheme is that the residual soil layer 1 on the upper part of the slope can be stable by itself, so it is protected by planting grass. That is to lay a first single-layer geotextile 7 on the excavation surface, and then spread loam 6 and plant grass on the first single-layer geotextile 7; The retaining structure is reinforced; the weakly weathered soft rock at the lower part of the slope is protected by three-dimensional grass planting 5, and the lower part of the slope is provided with road side ditch 13. The flexible reinforced retaining structure has the following characteristics: the bottom layer of the flexible reinforced retaining structure is a permeable base layer, and the permeable base layer is composed of a compacted layer of gravel and soil. A seepage ditch is excavated under the foundation layer, and the seepage is formed by laying soft permeable pipes 14 on the waterproof geotextile 4 and filling gravel 15; laying reinforcements 9 in the entire flexible reinforced support structure, and the reinforcements 9 are geogrids , the reinforcement material 9 of each layer exceeds the width of the seepage ditch, is turned up to the upper layer, and is connected with the reinforcement material 9 of the upper layer, and the reinforcement material 9 of each layer is backfilled and compacted with the excavated backfill soil 10. A platform and a water intercepting ditch 12 are arranged on the top of the reinforcement retaining structure, and the top of the platform is composed of a second single-layer geotextile 11 and planted loam.

参见图1,本发明仅在强风化岩带使用柔性加筋支挡结构加固,在软岩边坡的残积土层和弱风化岩带则分别采用植草和三维植草防护,加固和防护的工程措施针对性强,既保证了边坡稳定又极大地降低了柔性加筋支挡结构的工程量,与目前有效的锚杆框架梁方案比较,具有技术简便、施工速度快、经济环保等优点。Referring to Fig. 1, the present invention only uses the flexible reinforced retaining structure to strengthen in the strongly weathered rock zone, and then respectively adopts grass planting and three-dimensional grass planting protection, reinforcement and protection engineering measures in the residual soil layer of the soft rock slope and the weakly weathered rock zone It is highly targeted, which not only ensures the stability of the slope but also greatly reduces the engineering volume of the flexible reinforced retaining structure. Compared with the current effective anchor frame beam scheme, it has the advantages of simple technology, fast construction speed, economical and environmental protection.

Claims (3)

1. prevent and treat the flexible reinforcement combination safeguard structure that the severely-weathered band humidifying of soft rock is destroyed for one kind; It is characterized in that: the soil layer (1) that remains on side slope top is employed in and is equipped with the first individual layer geotextiles (7) on the excavation face, on the described first individual layer geotextiles (7), is covered with and plants loam (6) and grass planting; The soft rock of the severely-weathered rock zone (2) at side slope middle part adopts flexible reinforcement retaining structure to reinforce; The weak weathering soft rock (3) of side slope bottom adopts three-dimensional grass planting (5) protection.
2. the flexible reinforcement combination safeguard structure that the severely-weathered band humidifying of control soft rock according to claim 1 is destroyed; It is characterized in that: the structure of described flexible reinforcement retaining structure is in the bottom of described severely-weathered rock zone (2) permeable basal layer to be set; Described permeable basal layer is made up of gravelly soil (8) compacted lift; Excavation has sewer under described gravelly soil (8), and described sewer is formed through on waterproof geotextiles (4), being equipped with flexible porous tube (14) and being filled with rubble (15); In whole described flexible reinforcement retaining structure, be equipped with muscle material (9); Every layer described muscle material (9) all surpasses the width of described flexible reinforcement retaining structure; Anti-package is to last layer, and is connected with the muscle material (9) of last layer, and every layer of described muscle material (9) used backfill (10) backfill compacting that is excavated; Be provided with platform and catchwater (12) at the top of described flexible reinforcement retaining structure, described table top is added by the second individual layer geotextiles (11) plants the loam formation.
3. the flexible reinforcement combination safeguard structure that the severely-weathered band humidifying of control soft rock according to claim 2 is destroyed, it is characterized in that: described muscle material (9) is a GSZ.
CN2011103856655A 2011-11-28 2011-11-28 Flexible reinforced combined protection structure for preventing and treating humidifying damage of soft rock strongly weathered zone Pending CN102518136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103856655A CN102518136A (en) 2011-11-28 2011-11-28 Flexible reinforced combined protection structure for preventing and treating humidifying damage of soft rock strongly weathered zone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103856655A CN102518136A (en) 2011-11-28 2011-11-28 Flexible reinforced combined protection structure for preventing and treating humidifying damage of soft rock strongly weathered zone

Publications (1)

Publication Number Publication Date
CN102518136A true CN102518136A (en) 2012-06-27

Family

ID=46289180

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103856655A Pending CN102518136A (en) 2011-11-28 2011-11-28 Flexible reinforced combined protection structure for preventing and treating humidifying damage of soft rock strongly weathered zone

Country Status (1)

Country Link
CN (1) CN102518136A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046563A (en) * 2013-01-18 2013-04-17 朱维伟 Ecological landscape slope system conducive to implementation of artistical wall painting
CN103898844A (en) * 2014-02-20 2014-07-02 长沙理工大学 Rubble stone stack and reinforced soil composite embankment culvert pipe structure
CN104818734A (en) * 2015-05-13 2015-08-05 广东省长大公路工程有限公司 Waterproof and drainage system capable of preventing completely weathered granite slope water damage and construction method of system
CN104831747A (en) * 2015-04-16 2015-08-12 长沙理工大学 Concrete mould bag retaining wall
CN105625444A (en) * 2016-03-14 2016-06-01 攀枝花学院 Impermeable surface layer structure for soil slope
CN114753309A (en) * 2022-06-15 2022-07-15 中国市政工程西南设计研究总院有限公司 Soil swelling river bank embankment slope greening protection structure capable of relieving river water impact

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2309992A (en) * 1996-02-09 1997-08-13 Netlon Ltd Providing a layer of soil on a non-horizontal face
CN1880587A (en) * 2005-06-17 2006-12-20 长沙理工大学 Flexible reinforced retaining structure and construction method therefor
CN101078205A (en) * 2007-07-20 2007-11-28 北京市水利科学研究所 Reservoir bank ecological protection system
CN201473846U (en) * 2009-08-18 2010-05-19 冯守中 Anti-scouring structure for silt fill subgrade side slope
CN102154997A (en) * 2011-05-23 2011-08-17 东南大学 Ecotypic bank revetment structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2309992A (en) * 1996-02-09 1997-08-13 Netlon Ltd Providing a layer of soil on a non-horizontal face
CN1880587A (en) * 2005-06-17 2006-12-20 长沙理工大学 Flexible reinforced retaining structure and construction method therefor
CN101078205A (en) * 2007-07-20 2007-11-28 北京市水利科学研究所 Reservoir bank ecological protection system
CN201473846U (en) * 2009-08-18 2010-05-19 冯守中 Anti-scouring structure for silt fill subgrade side slope
CN102154997A (en) * 2011-05-23 2011-08-17 东南大学 Ecotypic bank revetment structure

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
谭波等: "土工格栅柔性支护在处治膨胀土路堑滑坡中的应用", 《桂林工学院学报》, no. 02, 30 June 2006 (2006-06-30) *
黄汉彪等: "斜坡地人工松散堆积体开挖边坡柔性支护技术研究", 《公路与汽运》, no. 05, 25 September 2011 (2011-09-25) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046563A (en) * 2013-01-18 2013-04-17 朱维伟 Ecological landscape slope system conducive to implementation of artistical wall painting
CN103046563B (en) * 2013-01-18 2015-06-10 昆明学院 Ecological landscape slope system conducive to implementation of artistical wall painting
CN103898844A (en) * 2014-02-20 2014-07-02 长沙理工大学 Rubble stone stack and reinforced soil composite embankment culvert pipe structure
CN103898844B (en) * 2014-02-20 2016-01-13 长沙理工大学 A composite embankment culvert structure with piles of rubble and reinforced soil
CN104831747A (en) * 2015-04-16 2015-08-12 长沙理工大学 Concrete mould bag retaining wall
CN104831747B (en) * 2015-04-16 2017-06-06 长沙理工大学 A kind of concrete film bag retaining wall
CN104818734A (en) * 2015-05-13 2015-08-05 广东省长大公路工程有限公司 Waterproof and drainage system capable of preventing completely weathered granite slope water damage and construction method of system
CN104818734B (en) * 2015-05-13 2016-04-20 广东省长大公路工程有限公司 Control completely decomposed granite side slope damage by water waterproof and water drainage system and construction method thereof
CN105625444A (en) * 2016-03-14 2016-06-01 攀枝花学院 Impermeable surface layer structure for soil slope
CN114753309A (en) * 2022-06-15 2022-07-15 中国市政工程西南设计研究总院有限公司 Soil swelling river bank embankment slope greening protection structure capable of relieving river water impact

Similar Documents

Publication Publication Date Title
CN103410159B (en) Expansive soil cut slope support structure and construction method thereof
CN203411948U (en) Green ecological riverway revetment structure
CN203403426U (en) Supporting structure of expensive earth road cutting side slope
CN102383413B (en) Method for constructing strengthened saturated-flow plastic silt soft soil foundation
CN103283335B (en) Filling reclamation method for reclaiming coal mining subsidence lands by Yellow River sediment
CN106168030A (en) A kind of Loess Landslide countermeasure system based on restoration of the ecosystem
CN105862886B (en) A kind of landfill slopes antiscour ecological afforestation mask and its construction method
CN105178245A (en) Large filling bag ecological embankment and revetment building method for river lake channel
CN106759223B (en) Controllable rigid pile+displacement hull+reinforcement cushion combined composite foundation
CN103882884A (en) Anchor rope geogrid retaining structure and method for constructing same
CN106522244B (en) A kind of embankment combination binding structure and its construction method
CN205152889U (en) Reservoir falling zone stable structure
CN110847198A (en) Low-disturbance comprehensive support structure for expansive soil slope and construction method thereof
CN102518136A (en) Flexible reinforced combined protection structure for preventing and treating humidifying damage of soft rock strongly weathered zone
CN106245481A (en) Construction method for maintaining integrity and stability of roadbed under complex geological condition
CN201183955Y (en) Slope ecological protection structure
CN106703053A (en) Construction method for reinforced soil drainage composite revetment structure
CN218667574U (en) High excavation side slope supporting construction of inflation soil that waterproof drainage combined together
CN102535289A (en) Variable cross-section structure of roadbed deep infiltration trench and construction method thereof
CN204690780U (en) A kind of inter-embedding type ecological block retaining wall
CN107419628A (en) A kind of construction method of the rapid build road on reclaimed ground
CN104164883B (en) A kind of loose unsaturated soil side slope superficial again compacting in conjunction with vegetative coverage means of defence
CN207537975U (en) Deep covering layer top panel Rockfill Dam based moisture barrier structure
CN103276717B (en) The method of composite earthwork synthetic materials reinforcement cushion soft soil foundation
CN206220108U (en) Cut Slopes of Expansive Soil reinforced earth back-pressure antiseepage supporting construction

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120627