CN111236244A - Method for treating water leakage of free section of anchor cable on sand layer of foundation pit - Google Patents

Method for treating water leakage of free section of anchor cable on sand layer of foundation pit Download PDF

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CN111236244A
CN111236244A CN202010019651.0A CN202010019651A CN111236244A CN 111236244 A CN111236244 A CN 111236244A CN 202010019651 A CN202010019651 A CN 202010019651A CN 111236244 A CN111236244 A CN 111236244A
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anchor cable
grouting
foundation pit
free section
anchor
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郭秋苹
张领帅
李燕
姬建民
严树
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Shenzhen Hongyeji Geotechnical Technology Co Ltd
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Shenzhen Hongyeji Geotechnical Technology Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • E02D17/04Bordering surfacing or stiffening the sides of foundation pits
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • E02D15/04Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads

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  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

本发明涉及基坑支护的技术领域,公开了基坑砂层锚索自由段渗漏水的治理方法,包括:在基坑的侧壁上钻挖锚索孔;在锚索上布置有一次注浆管和二次注浆管,并将锚索下放至锚索孔内;锚索包括自由段和锚固段,在自由段的外周上缠绕有防渗填充物,当锚索被下放在锚索孔内时,锚固段全部置于锚索孔内,自由段的下部置于锚索孔内,自由段的上部置于锚索孔的外部;进行第一次注浆、二次注浆;待浆液凝固后,锚索通过固定结构与支护桩进行张拉固定;通过在锚索的自由段缠绕防渗填充物,防渗填充物贴合在锚索孔的侧壁上,与锚索孔的结合更加紧密,浆液附着在防渗填充物的外周,浆液与防渗填充物之间形成一体布置的防渗层,从而能起到更佳的防水防渗效果。

Figure 202010019651

The invention relates to the technical field of foundation pit support, and discloses a treatment method for water leakage in the free section of anchor cables in the sand layer of the foundation pit. The grouting pipe and the secondary grouting pipe, and the anchor cable is lowered into the anchor cable hole; the anchor cable includes a free section and an anchor section, and an anti-seepage filler is wrapped around the outer circumference of the free section. When inside the cable hole, all the anchoring sections are placed in the anchor cable hole, the lower part of the free section is placed in the anchor cable hole, and the upper part of the free section is placed outside the anchor cable hole; the first grouting and the second grouting are carried out; After the slurry is solidified, the anchor cable is tensioned and fixed with the supporting pile through the fixed structure; the anti-seepage filler is wrapped around the free section of the anchor cable, and the anti-seepage filler is attached to the side wall of the anchor cable hole and is connected with the anchor cable. The pores are combined more closely, the slurry is attached to the outer periphery of the anti-seepage filler, and an integrated anti-seepage layer is formed between the slurry and the anti-seepage filler, so that a better waterproof and anti-seepage effect can be achieved.

Figure 202010019651

Description

基坑砂层锚索自由段渗漏水的治理方法Treatment method for water leakage in the free section of anchor cable in the sand layer of foundation pit

技术领域technical field

本发明专利涉及基坑支护的技术领域,具体而言,涉及基坑砂层锚索自由段渗漏水的治理方法。The patent of the present invention relates to the technical field of foundation pit support, in particular, to a method for treating water leakage in the free section of the anchor cable in the sand layer of the foundation pit.

背景技术Background technique

目前,随着城市建设的快速发展,深基坑支护工程越来越多,桩锚支护结构形式由于其经济优越性以及施工效率高等优点,使得其在基坑支护工程中使用的越来越多。At present, with the rapid development of urban construction, there are more and more deep foundation pit support projects. Due to its economic superiority and high construction efficiency, the pile-anchor support structure is more and more used in foundation pit support projects. more and more.

但深基坑砂层中锚索张拉锁定后沿自由段波纹管处漏水的通病问题一直都未得到很好地解决,持续漏水势必会造成基坑周边地下水位下降,进而导致基坑影响范围内的道路、管线以及建(构)筑物沉降加大,甚至超标,给基坑安全带来隐患。However, the common problem of water leakage along the bellows in the free section after the anchor cable is tensioned and locked in the sand layer of the deep foundation pit has not been well solved. Continuous water leakage will inevitably cause the groundwater level around the foundation pit to drop, which will lead to the influence of the foundation pit. The settlement of roads, pipelines and buildings (structures) in the area increases, or even exceeds the standard, which brings hidden dangers to the safety of foundation pits.

现有技术中,一般采用浆液封堵等方法,但是这些方法在防渗透效果有限,存在对于漏水严重的锚索孔的封堵不能起到很好防渗漏效果的问题。In the prior art, methods such as slurry plugging are generally used, but these methods have limited anti-seepage effect, and have the problem that the plugging of the anchor cable holes with serious water leakage cannot achieve a good anti-leakage effect.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于提供基坑砂层锚索自由段渗漏水的治理方法,旨在解决现有技术中,对漏水严重的锚索孔的封堵不能起到很好防渗漏效果的问题。The purpose of the present invention is to provide a treatment method for water leakage in the free section of the anchor cable in the sand layer of the foundation pit, and to solve the problem that in the prior art, the plugging of the anchor cable hole with serious water leakage cannot play a good anti-leakage effect. .

本发明是这样实现的,基坑砂层锚索自由段渗漏水的治理方法,包括以下施工步骤:The present invention is realized in this way, and the treatment method for the water leakage in the free section of the anchor cable in the sand layer of the foundation pit comprises the following construction steps:

1)、在基坑的侧壁上钻挖锚索孔;1), drill the anchor cable hole on the side wall of the foundation pit;

2)、在锚索上布置有一次注浆管和二次注浆管,并将所述锚索下放至所述锚索孔内;2) Arrange a primary grouting pipe and a secondary grouting pipe on the anchor cable, and lower the anchor cable into the anchor cable hole;

3)、所述锚索包括自由段和锚固段,在所述自由段的外周上缠绕有防渗填充物,当所述锚索被下放在所述锚索孔内时,所述锚固段全部置于所述锚索孔内,所述自由段的下部置于所述锚索孔内,所述自由段的上部置于所述锚索孔的外部;3) The anchor cable includes a free section and an anchor section, and an anti-seepage filler is wound around the outer circumference of the free section. When the anchor cable is placed in the anchor cable hole, all the anchor sections are is placed in the anchor cable hole, the lower part of the free segment is placed in the anchor cable hole, and the upper part of the free segment is placed outside the anchor cable hole;

4)、利用所述一次注浆管进行第一次注浆;4), using the primary grouting pipe for the first grouting;

5)、一次注浆完成后,利用所述二次注浆管进行二次注浆,直至浆液从所述锚索孔的孔口处溢出时,停止注浆;5) After the primary grouting is completed, use the secondary grouting pipe to carry out secondary grouting, and stop grouting until the slurry overflows from the orifice of the anchor cable hole;

6)、在所述自由段的上部设置有固定结构,待浆液凝固后,所述锚索通过所述固定结构与所述支护桩进行张拉固定;6) A fixed structure is arranged on the upper part of the free section, and after the slurry is solidified, the anchor cable is tensioned and fixed with the support pile through the fixed structure;

7)、施工完成。7), the construction is completed.

进一步地,在步骤2)中,在下放所述锚索时,将二次注浆管的端头固定在所述锚固段的底端上,随着所述锚索的下放,所述二次注浆管下放至锚索孔的底部。Further, in step 2), when the anchor cable is lowered, the end of the secondary grouting pipe is fixed on the bottom end of the anchoring section. Lower the grouting pipe to the bottom of the anchor cable hole.

进一步地,在步骤3)中,当所述锚固段的底端下放到所述锚索孔的孔底时,通过所述一次注浆管向所述锚索孔内注浆,当浆液从所述锚索孔的孔口处溢出时,停止注浆,并且沿背离所述孔底方向,将所述锚索向外拉出0.25m,继续注浆。Further, in step 3), when the bottom end of the anchoring section is lowered to the bottom of the anchor cable hole, grouting is carried out into the anchor cable hole through the primary grouting pipe. When the orifice of the anchor cable hole overflows, stop grouting, and in the direction away from the bottom of the hole, pull the anchor cable outward by 0.25m, and continue grouting.

进一步地,在步骤4)中,沿朝向基坑侧壁方向,向固定结构上钻多个钻孔,所述钻孔环绕布置在所述锚索的自由端的端头周围,并向所述钻孔内打入多根朝向不同方向并且嵌入在基坑侧壁的土体中的注浆钢管,所述注浆钢管的管身具有多个钻孔。Further, in step 4), along the direction toward the side wall of the foundation pit, drill a plurality of drill holes on the fixed structure, the drill holes are arranged around the end of the free end of the anchor cable, and the drill holes are drilled toward the hole. A plurality of grouting steel pipes oriented in different directions and embedded in the soil of the side wall of the foundation pit are driven into the holes, and the pipe body of the grouting steel pipes has a plurality of drilling holes.

进一步地,在步骤4)中,当一次注浆完成后,向所述注浆钢管内进行注浆,直至浆液从所述注浆钢管的孔口漏出,注浆完成,再用使用了固化剂配置而成的浆液对所述注浆钢管的钢管口进行封堵。Further, in step 4), after the first grouting is completed, grouting is carried out into the grouting steel pipe until the slurry leaks from the orifice of the grouting steel pipe, the grouting is completed, and then the curing agent is used. The prepared slurry seals the steel pipe opening of the grouting steel pipe.

进一步地,在步骤5)中,固定结构为腰梁,所述腰梁固定在支护桩上,所述锚索的锚固段穿设在所述腰梁上,并通过锚具进行锚固、张拉,若出现从所述腰梁渗漏水,则在所述腰梁漏水点周围钻孔用注浆速凝灌浆料填塞。Further, in step 5), the fixed structure is a waist beam, the waist beam is fixed on the support pile, the anchoring section of the anchor cable is worn on the waist beam, and anchoring, tensioning and tensioning are carried out by anchors. If there is water leakage from the waist beam, drill holes around the waist beam leakage point and fill it with grouting quick-setting grouting material.

进一步地,所述腰梁布置在所述支护桩远离所述基坑侧壁的一侧,在支护桩内预先修筑有多根锚筋,多根所述锚筋延伸出支护桩并穿设在所述腰梁内,并通过高压灌注机向锚筋、所述腰梁以及支护桩之间的空隙进行浆液灌注。Further, the waist beam is arranged on the side of the support pile away from the side wall of the foundation pit, a plurality of anchor bars are pre-built in the support pile, and the plurality of anchor bars extend out of the support pile and It is worn in the waist beam, and is poured into the gap between the anchor bar, the waist beam and the supporting pile by a high-pressure pouring machine.

进一步地,将三根钢绞线捆绑在所述一次注浆管的外周形成所述锚索,并且,沿所述钢绞线的长度方向,在三根所述钢绞线的外周捆扎有多个捆扎线组,多个所述捆扎线组均匀间隔布置。Further, three steel strands are bundled on the outer circumference of the primary grouting pipe to form the anchor cable, and along the length direction of the steel strands, a plurality of bundles are bundled on the outer circumference of the three steel strands A wire group, wherein a plurality of the binding wire groups are evenly spaced.

进一步地,在所述锚索上安装多个支护架,所述支护架的外周朝内凹陷形成凹陷槽,将三个所述钢绞线嵌入在所述凹陷槽内,沿所述锚索的横截面方向,三个所述钢绞线呈等边三角形布置,所述注浆管通孔布置在三个所述钢绞线通孔的中部,沿所述钢绞线的长度方向,多个所述支护架呈均匀间隔布置,所述支护架与所述捆扎线组交错布置。Further, a plurality of support brackets are installed on the anchor cable, the outer periphery of the support brackets is recessed inward to form a concave groove, and the three steel strands are embedded in the concave groove, along the anchor In the cross-sectional direction of the cable, the three steel strands are arranged in an equilateral triangle, and the through hole of the grouting pipe is arranged in the middle of the three through holes of the steel strand, along the length direction of the steel strand, A plurality of the support brackets are arranged at even intervals, and the support brackets and the binding wire group are arranged in a staggered manner.

进一步地,所述一次注浆管穿过支护架的中心,所述二次注浆管穿设在所述支护架的边部。Further, the primary grouting pipe passes through the center of the support frame, and the secondary grouting pipe passes through the edge of the support frame.

与现有技术相比,本发明提供的基坑砂层锚索自由段渗漏水的治理方法,通过在锚索的自由段缠绕防渗填充物,防渗填充物贴合在锚索孔的侧壁上,与锚索孔的结合更加紧密,在通过一次灌注与二次灌注,浆液附着在防渗填充物的外周,浆液凝固后,浆液与防渗填充物之间形成一体布置的防渗层,从而能起到更佳的防水防渗效果。Compared with the prior art, the present invention provides a method for treating water leakage in the free section of the anchor cable in the sand layer of the foundation pit. On the side wall, it is more closely combined with the anchor cable hole. After the first injection and the second injection, the slurry is attached to the outer periphery of the anti-seepage filler. After the slurry is solidified, an integrated anti-seepage arrangement is formed between the slurry and the anti-seepage filler. layer, so as to play a better waterproof and anti-seepage effect.

附图说明Description of drawings

图1是本发明提供的基坑砂层锚索自由段渗漏水的治理方法的施工步骤流程框图;Fig. 1 is the construction step flow chart of the treatment method of the seepage water in the free section of anchor cable in foundation pit sand layer provided by the present invention;

图2是本发明提供的基坑砂层锚索自由段渗漏水的治理方法的注浆立体示意图;Fig. 2 is the grouting three-dimensional schematic diagram of the treatment method for water leakage in the free section of the anchor cable of the foundation pit sand layer provided by the present invention;

图3是本发明提供的基坑砂层锚索自由段渗漏水的治理方法中注浆钻孔位置的主视图;Fig. 3 is the front view of the position of grouting drilling hole in the treatment method for water leakage in the free section of anchor cable in foundation pit sand layer provided by the present invention;

图4是本发明提供的基坑砂层锚索自由段渗漏水的治理方法中的注浆剖面图;Fig. 4 is the grouting sectional view in the treatment method for water leakage in the free section of the anchor cable of the foundation pit sand layer provided by the present invention;

图5是本发明提供的基坑砂层锚索自由段渗漏水的治理方法中的1-1断面的截面示意图;5 is a schematic cross-sectional view of section 1-1 in the method for treating water leakage in the free section of the anchor cable in the sand layer of the foundation pit provided by the present invention;

图6是本发明提供的基坑砂层锚索自由段渗漏水的治理方法中的的2-2断面的截面示意图;6 is a schematic cross-sectional view of the 2-2 section in the method for treating water leakage in the free section of the anchor cable in the sand layer of the foundation pit provided by the present invention;

图7是本发明提供的基坑砂层锚索自由段渗漏水的治理方法中的的3-3断面的截面示意图。7 is a schematic cross-sectional view of section 3-3 in the method for treating water leakage in the free section of the anchor cable in the sand layer of the foundation pit provided by the present invention.

具体实施方式Detailed ways

为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

以下结合具体实施例对本发明的实现进行详细的描述。The implementation of the present invention will be described in detail below with reference to specific embodiments.

本实施例的附图中相同或相似的标号对应相同或相似的部件;在本发明的描述中,需要理解的是,若有术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此附图中描述位置关系的用语仅用于示例性说明,不能理解为对本专利的限制,对于本领域的普通技术人员而言,可以根据具体情况理解上述术语的具体含义。The same or similar numbers in the drawings of this embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. structure and operation, so the terms describing the positional relationship in the accompanying drawings are only used for exemplary illustration, and should not be construed as a limitation on this patent, and those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

参照图1至7所示,为本发明提供的较佳实施例。Referring to Figures 1 to 7, it is a preferred embodiment provided by the present invention.

基坑砂层锚索自由段渗漏水的治理方法,包括以下施工步骤:The treatment method for the seepage water in the free section of the anchor cable in the sand layer of the foundation pit includes the following construction steps:

1)、在基坑的侧壁上钻挖锚索孔70;1), drill the anchor cable hole 70 on the side wall of the foundation pit;

2)、在锚索10上布置有一次注浆管和二次注浆管,并将锚索10下放至锚索孔70内;2) Arrange the primary grouting pipe and the secondary grouting pipe on the anchor cable 10, and lower the anchor cable 10 into the anchor cable hole 70;

3)、锚索10包括自由段1010和锚固段1011,在自由段1010的外周上缠绕有防渗填充物30,当锚索10被下放在锚索孔70内时,锚固段1011全部置于锚索孔70内,自由段1010的下部置于锚索孔70内,自由段1010的上部置于锚索孔70的外部;3) The anchor cable 10 includes a free section 1010 and an anchoring section 1011. The outer circumference of the free section 1010 is wound with an anti-seepage filler 30. When the anchor cable 10 is placed in the anchor cable hole 70, all the anchoring sections 1011 are placed in the hole 70. In the anchor cable hole 70, the lower part of the free section 1010 is placed in the anchor cable hole 70, and the upper part of the free section 1010 is placed outside the anchor cable hole 70;

4)、利用一次注浆管120进行第一次注浆;4), use a grouting pipe 120 for the first grouting;

5)、一次注浆完成后,利用二次注浆管130进行二次注浆,直至浆液从锚索孔70的孔口处溢出时,停止注浆;5) After the primary grouting is completed, the secondary grouting pipe 130 is used for secondary grouting until the grouting overflows from the orifice of the anchor cable hole 70, and the grouting is stopped;

6)、在自由段1010的上部设置有固定结构,待浆液凝固后,锚索10通过固定结构与支护桩20进行张拉固定;6), a fixed structure is provided on the upper part of the free section 1010, and after the slurry solidifies, the anchor cable 10 is tensioned and fixed with the support pile 20 through the fixed structure;

7)、施工完成。7), the construction is completed.

上述提供的基坑砂层锚索10自由段1010渗漏水的治理方法,通过在锚索10的自由段1010缠绕防渗填充物30,防渗填充物30贴合在锚索孔70的侧壁上,与锚索孔70的结合更加紧密,在通过一次灌注与二次灌注,浆液附着在防渗填充物30的外周,浆液凝固后,浆液与防渗填充物30之间形成一体布置的防渗层,从而能起到更佳的防水防渗效果。In the above-mentioned treatment method for water leakage in the free section 1010 of the anchor cable 10 of the foundation pit sand layer, the anti-seepage filler 30 is wrapped around the free section 1010 of the anchor cable 10, and the anti-seepage filler 30 is attached to the side of the anchor cable hole 70. On the wall, it is more closely combined with the anchor cable hole 70. After the primary injection and the secondary injection, the slurry adheres to the outer periphery of the anti-seepage filler 30. After the slurry solidifies, the slurry and the anti-seepage filler 30 form an integral arrangement. Impermeable layer, which can play a better waterproof and anti-seepage effect.

在防渗填充物30的外周缠绕密封膜,并进行抽真空,将防渗填充物30保持束紧的状态,便于安装固定,同时还能起到良好的防水效果。A sealing film is wrapped around the outer periphery of the anti-seepage filler 30, and vacuum is performed to keep the anti-seepage filler 30 in a tight state, which is convenient for installation and fixation, and also has a good waterproof effect.

密封膜的材料可以是塑料薄膜或是弹性橡胶膜。The material of the sealing film can be a plastic film or an elastic rubber film.

在基坑挖设前,先打入支护桩20,然后从基坑顶部91沿着支护桩20向下挖设出,直至挖设到基坑底部90,此时支护桩20的下端插设在基坑的下方。Before excavation of the foundation pit, the supporting piles 20 are first driven, and then excavated from the top 91 of the foundation pit along the supporting piles 20 until the bottom 90 of the foundation pit is excavated. At this time, the lower end of the supporting piles 20 Inserted under the foundation pit.

防渗填充物30可以采用采用工地上的废旧纤维,一方面可以起到对工地上废弃物的回收利用,另一方面,能降低施工成本。The anti-seepage filler 30 can be made of waste fibers on the construction site, on the one hand, it can recycle the waste on the construction site, and on the other hand, it can reduce the construction cost.

另一方面,自由段1010具有远离锚固段1011的上部以及接触锚固段1011的下部,在缠绕上述防渗填充物30时,从自由段1010的下部向上部方向开始缠绕,在缠绕厚度方面,自由段1010的下部在缠绕完成后的直径与锚索孔70的直径相同。On the other hand, the free segment 1010 has an upper part away from the anchoring segment 1011 and a lower part contacting the anchoring segment 1011. When winding the impermeable filler 30, the winding starts from the lower part of the free segment 1010 to the upper direction. The diameter of the lower portion of the segment 1010 after winding is complete is the same as the diameter of the cable hole 70 .

另外,缠绕长度在1m以上。In addition, the winding length is 1 m or more.

沿自由段1010的后端至自由段1010的前端方向,所缠绕的防渗填充物30的厚度逐渐增大,这样的话,在下放锚索10时,随着自由段1010的缓缓进入到锚索孔70,自由段1010与锚索孔70的内壁之间的贴合越来越紧密,从而保障施工过程中锚索10与锚索孔70之间的紧密性。In the direction from the rear end of the free section 1010 to the front end of the free section 1010, the thickness of the wound anti-seepage filler 30 gradually increases. In this case, when the anchor cable 10 is lowered, as the free section 1010 slowly enters the anchorage The fit between the cable hole 70 , the free section 1010 and the inner wall of the anchor cable hole 70 is getting tighter and tighter, thereby ensuring the tightness between the anchor cable 10 and the anchor cable hole 70 during construction.

在步骤2)中,在下放锚索10时,将二次注浆管130的端头固定在锚固段1011的底端上,随着锚索10的下放,二次注浆管130下放至锚索孔70的底部。In step 2), when the anchor cable 10 is lowered, the end of the secondary grouting pipe 130 is fixed on the bottom end of the anchoring section 1011. With the lowering of the anchor cable 10, the secondary grouting pipe 130 is lowered to the anchorage Bottom of cable hole 70.

在步骤3)中,当锚固段1011的底端下放到锚索孔70的孔底时,通过一次注浆管120向锚索孔70内注浆,当浆液从锚索孔70的孔口处溢出时,停止注浆,并且沿背离孔底方向,将锚索10向外拉出0.25m,继续注浆。In step 3), when the bottom end of the anchoring section 1011 is lowered to the bottom of the anchor cable hole 70, grouting is carried out into the anchor cable hole 70 through the primary grouting pipe 120. When it overflows, stop grouting, and pull out the anchor cable 10 for 0.25m in the direction away from the bottom of the hole, and continue grouting.

具体的,一次注浆管120的底部具有注浆开口,在注浆过程中,浆液直接通过一次注浆管120流入到锚索孔70的底部,随着浆液的不断堆积,浆液缓缓上升,直至浆液到达防渗填充物30处,并浸过防渗填充物30,从锚索孔70口出溢出时,即可停止注浆。Specifically, the bottom of the primary grouting pipe 120 has a grouting opening. During the grouting process, the slurry directly flows into the bottom of the anchor cable hole 70 through the primary grouting pipe 120. With the continuous accumulation of the slurry, the slurry slowly rises. When the slurry reaches the anti-seepage filler 30, soaks through the anti-seepage filler 30, and overflows from the anchor cable hole 70, the grouting can be stopped.

自下而上进行注浆,可以浆液自下而上慢慢堆积,可以更全面地将将钻孔内的空隙填满,不留空隙、气泡,从而达到更佳的灌注效果。Grouting from the bottom up, the slurry can be slowly accumulated from bottom to top, and the voids in the borehole can be filled more comprehensively without leaving voids and air bubbles, so as to achieve a better perfusion effect.

一次注浆完成后,由于浆液有气泡或者锚索10等的干扰,很有可能会导致注浆不均匀或者仍存在有未被注浆的空隙,从而影响注浆效果,甚至为外界提供了漏水通路,因此,在一次注浆完成后,还需要再进行二次注浆,二次注浆使用二次注浆管130,二次注浆管130的管壁的四周具有多个开孔,这样,通过二次注浆,可以进一步填补一次注浆未填充满的空隙区域,从而使得锚索孔70内部的浆液灌注的更加致密,增强锚索孔70内浆液的强度,一方面将锚索10固定的更加紧密,另一方面,浆液内部孔隙率减小,能具有更好的防水效果。After the first grouting is completed, due to the interference of air bubbles in the slurry or the interference of anchor cables 10, etc., it is likely to cause uneven grouting or there are still gaps that have not been grouted, thus affecting the grouting effect and even providing water leakage to the outside world. Therefore, after the first grouting is completed, a second grouting needs to be performed. The secondary grouting uses the secondary grouting pipe 130, and the wall of the secondary grouting pipe 130 has a plurality of openings around it. , through the secondary grouting, the void area that is not filled by the primary grouting can be further filled, so that the grout in the anchor cable hole 70 can be poured more densely, and the strength of the grout in the anchor cable hole 70 can be enhanced. It is more tightly fixed, on the other hand, the internal porosity of the slurry is reduced, which can have a better waterproof effect.

在下放二次注浆管130前,二次注浆管130上的开孔上贴附有多个封闭膜,在下放过程中,封闭膜可以实现二次注浆管130与土体之间的隔绝作用,从而避免外界土体进入到通过开孔进入到二次注浆管130内,对二次注浆管130造成阻塞等问题,在灌注过程中,在浆液压力的驱动下,封闭膜破裂,浆液由二次注浆管130进入到锚索孔70内。Before lowering the secondary grouting pipe 130, a plurality of sealing membranes are attached to the openings on the secondary grouting pipe 130. During the lowering process, the sealing membranes can realize the connection between the secondary grouting pipe 130 and the soil. Insulation, so as to prevent the external soil from entering the secondary grouting pipe 130 through the opening, causing problems such as blocking the secondary grouting pipe 130. During the filling process, driven by the slurry pressure, the sealing membrane ruptures , the grout enters the anchor cable hole 70 from the secondary grouting pipe 130 .

在步骤4)中,沿朝向基坑侧壁方向,向固定结构上钻多个钻孔102,钻孔102环绕布置在锚索10的自由段1010的端头周围,并向钻孔102内打入多根朝向不同方向并且嵌入在基坑侧壁的土体中的注浆钢管101,注浆钢管101的管身具有多个钻孔,此时再向注浆钢管101内注入浆液,浆液通过注浆钢管101的钻孔朝向周围的土体流动,浆液凝固后,并与土体相结合,也就是说,通过锚索10可以从多个方向对支护桩20进行支护,增大与土层的接触面积,可以将孔口附近松散破碎的土层胶结成整体,使得对支护桩20的固定更加稳固。In step 4), drill a plurality of drill holes 102 on the fixed structure along the direction toward the side wall of the foundation pit, the drill holes 102 are arranged around the end of the free section 1010 of the anchor cable 10, and drill into the drill holes 102 A plurality of grouting steel pipes 101 facing different directions and embedded in the soil of the side wall of the foundation pit are inserted. The pipe body of the grouting steel pipe 101 has a plurality of drilling holes. The borehole of the grouting steel pipe 101 flows toward the surrounding soil, and after the slurry solidifies, it combines with the soil. The contact area of the soil layer can cement the loose and broken soil layer near the orifice into a whole, so that the fixing of the supporting pile 20 is more stable.

在步骤4)中,当一次注浆完成后,向注浆钢管101内进行注浆,直至浆液从注浆钢管101的孔口漏出,注浆完成,再用使用了固化剂配置而成的浆液对注浆钢管101的钢管口进行封堵,将钻孔102的孔口封实,不留空隙,这样可以避免水由注浆钢管101的孔口向注浆钢管101内部渗透。In step 4), after the first grouting is completed, grouting is performed into the grouting steel pipe 101 until the slurry leaks from the orifice of the grouting steel pipe 101, the grouting is completed, and then the slurry prepared by using the curing agent is used. The steel pipe opening of the grouting steel pipe 101 is blocked, and the orifice of the drilled hole 102 is sealed without leaving any gaps, so as to prevent water from penetrating into the grouting steel pipe 101 from the orifice of the grouting steel pipe 101 .

注浆钢管101的长度为3m。The length of the grouting steel pipe 101 is 3 m.

上述一次注浆和二次注浆所用到的浆液为浆液液,而灌注注浆钢管101所使用到的浆液为使用固化剂配制而成的浆液。The slurry used for the above-mentioned primary grouting and secondary grouting is a slurry liquid, and the slurry used for the grouting steel pipe 101 is a slurry prepared by using a curing agent.

固化剂的成分包括高效结构剂以及外加剂,高效结构剂与外加剂与水拌合形成固化浆体,空桩段300具有废浆液,固化浆体连同高压空气一起注入废浆液;高效结构剂占废浆液重量的10%~20%,水占废浆液的重量的10%~20%,外加剂占废浆液重量的0.5%~1.5%,高效结构剂对废浆液进行固化处理,同时辅以外加剂,增强固化的性能。The components of the curing agent include high-efficiency structural agent and admixture. The high-efficiency structural agent and the admixture are mixed with water to form a solidified slurry. The empty pile section 300 has waste slurry, and the solidified slurry is injected into the waste slurry together with high-pressure air; the high-efficiency structural agent accounts for 10% to 20% of the weight of the waste slurry, water accounts for 10% to 20% of the weight of the waste slurry, and admixtures account for 0.5% to 1.5% of the weight of the waste slurry. agent to enhance curing performance.

在步骤5)中,固定结构为腰梁40,腰梁40固定在支护桩20上,锚索10的锚固段1011穿设在腰梁40上,并通过锚具42进行锚固、张拉,若出现从腰梁40渗漏水,则在腰梁40漏水点周围钻孔用注浆速凝灌浆料填塞。In step 5), the fixing structure is the waist beam 40, the waist beam 40 is fixed on the support pile 20, the anchoring section 1011 of the anchor cable 10 is worn on the waist beam 40, and is anchored and tensioned by the anchor 42, If there is water leakage from the waist beam 40, the holes around the water leakage point of the waist beam 40 are filled with grouting and quick-setting grouting material.

具体的,先将锚索的锚固段1011下放到锚索孔70内,通过一次注浆以及二次注浆将锚索固定在锚索孔70内,此时自由段1010置于锚索孔70的外部,待浆液凝固后,然后再将自由段1010从腰梁40的背面穿过,然后通过锚具70进行伸拉锚固,此时,由于自由段1010由后端之前端所缠绕的防渗填充物30的厚度逐渐增大,随着锚具70的拉伸,防渗填充物30可以更加紧密地与腰梁40进行贴合固定,增加固定过程中的紧密性。Specifically, the anchoring section 1011 of the anchor cable is first lowered into the anchor cable hole 70 , and the anchor cable is fixed in the anchor cable hole 70 through primary grouting and secondary grouting. At this time, the free section 1010 is placed in the anchor cable hole 70 After the slurry solidifies, the free section 1010 is then passed through the back of the waist beam 40, and then anchored by the anchor 70. The thickness of the filler 30 is gradually increased, and as the anchor 70 is stretched, the anti-seepage filler 30 can be more closely fitted and fixed with the waist beam 40 to increase the tightness during the fixing process.

在锚具42的下方设置有钢垫板43。A steel backing plate 43 is provided below the anchor 42 .

注浆速凝灌浆料,是由水溶性高分子聚合物、表面活性物质等复合而成的粉末状灌浆料,具有很强的抗分散性和较好的流动性,实现水下的自流平、自密实。Grouting quick-setting grouting material is a powdered grouting material composed of water-soluble polymer, surface active substances, etc. self-consolidation.

腰梁40布置在支护桩20远离基坑侧壁的一侧,在支护桩20内预先修筑有多根锚筋44,多根锚筋44延伸出支护桩20并穿设在腰梁40内,并通过高压灌注机向锚筋44、腰梁40以及支护桩20之间的空隙进行浆液灌注。The waist beam 40 is arranged on the side of the support pile 20 away from the side wall of the foundation pit, and a plurality of anchor bars 44 are pre-built in the support pile 20, and the multiple anchor bars 44 extend out of the support pile 20 and pass through the waist beam. 40, and the high-pressure pouring machine is used to pour slurry into the space between the anchor bars 44, the waist beam 40 and the supporting pile 20.

腰梁40具有朝向支护桩20布置的抵压面,将抵压面的表面凿毛,也就是将抵压面的表面凿成凹凸不平状,再通过锚具42与支护桩20固定连接,此时,腰梁40的抵压面抵压在支护桩20的外表面上;待固定完成后,通过高压灌注机向抵压面与支护桩20的外表面之间注入浆液。The waist beam 40 has a pressing surface arranged toward the supporting pile 20, and the surface of the pressing surface is chiseled, that is, the surface of the pressing surface is chiseled into an uneven shape, and then fixedly connected to the supporting pile 20 through the anchor 42. , at this time, the pressing surface of the waist beam 40 is pressed against the outer surface of the supporting pile 20 ;

将三根钢绞线105捆绑在一次注浆管120的外周形成锚索10,并且,沿钢绞线105的长度方向,在三根钢绞线105的外周捆扎有多个捆扎线组300,多个捆扎线组300均匀间隔布置。Three steel strands 105 are bundled on the outer periphery of the primary grouting pipe 120 to form the anchor cable 10, and along the longitudinal direction of the steel strands 105, a plurality of binding wire groups 300 are bundled around the outer periphery of the three steel strands 105. The binding wire groups 300 are evenly spaced.

在钢绞线105的外周套设有牛筋套管1051,可以对钢绞线105起到防腐的作用。A beef tendon sleeve 1051 is sleeved on the outer periphery of the steel strand 105 , which can protect the steel strand 105 from corrosion.

一次注浆管120为软性管状材料,将一次注浆管120固定在三根钢绞线105的中部,在下放钢绞线105的过程中,一方面,可以避免受到土层的干扰,浆液流动过程中更加畅通无阻,另一方面,还可以起到下方过程中对一次注浆管120的导向、定位的作用。The primary grouting pipe 120 is a soft tubular material, and the primary grouting pipe 120 is fixed in the middle of the three steel strands 105. In the process of lowering the steel strands 105, on the one hand, the interference of the soil layer can be avoided, and the slurry flows The process is more unobstructed, and on the other hand, it can also play the role of guiding and positioning the primary grouting pipe 120 in the following process.

在锚索10上安装多个支护架310,支护架310的外周朝内凹陷形成凹陷槽,将三个钢绞线105嵌入在凹陷槽内,沿锚索10的横截面方向,三个钢绞线105呈等边三角形布置,注浆管通孔布置在三个钢绞线105通孔的中部,沿钢绞线105的长度方向,多个支护架310呈均匀间隔布置,支护架310与捆扎线组300交错布置,这样的话,在锚索10的长度方向上是呈宽窄交错布置的,具体的,有支护架310的部分锚索10的宽度较宽,有捆扎线组300的部分锚索10的截面较小,在缠绕防渗填充物30时,从捆扎线组300处开始向支护架310方向缠绕,捆扎线组300处的缠绕厚度以缠绕后的直径与锚索孔70直径一致为准,当缠绕至支护架310处后,继续缠绕,朝向下一个捆扎线组300方向缠绕,直至缠绕长度满足设计要求。A plurality of support brackets 310 are installed on the anchor cable 10, the outer circumference of the support brackets 310 is recessed inward to form a concave groove, and three steel strands 105 are embedded in the concave groove, along the cross-sectional direction of the anchor cable 10, three The steel strands 105 are arranged in an equilateral triangle, and the through holes of the grouting pipes are arranged in the middle of the three through holes of the steel strands 105. Along the length of the steel strands 105, a plurality of support frames 310 are arranged at even intervals to support The frame 310 and the binding wire group 300 are arranged in a staggered manner, so that the width and narrowness of the anchor cable 10 are arranged in a staggered manner in the length direction. The section of part of the anchor cable 10 of 300 is small. When winding the anti-seepage filler 30, it starts to wind from the binding wire group 300 to the direction of the support frame 310. The diameter of the cable hole 70 shall be the same. After winding to the support frame 310, continue winding, and wind towards the next binding wire group 300 until the winding length meets the design requirements.

在缠绕过程中,由于锚索10的粗细不均匀,因此可以与防渗填充物30之间结合的更加紧固,不易在锚索10上滑动,固定效果更佳。During the winding process, since the thickness of the anchor cable 10 is not uniform, it can be combined with the anti-seepage filler 30 more tightly, it is not easy to slide on the anchor cable 10, and the fixing effect is better.

在锚索10的最底端设置有导向帽107,导向帽107呈倒锥形布置,在下放锚索10过程中,可以起到对锚索10牵引、导向的作用。The bottom end of the anchor cable 10 is provided with a guide cap 107 , and the guide cap 107 is arranged in an inverted conical shape, which can play a role of pulling and guiding the anchor cable 10 during the process of lowering the anchor cable 10 .

一次注浆管120穿过支护架310的中心,一次注浆管120同时也传射过捆扎线组300的中心,二次注浆管130穿设在支护架310的边部,这样,通过一次注浆管120进行一次注浆与通过二次注浆管130进行注浆的覆盖范围更大,可以将浆液更充分地灌注在锚索孔70内。The primary grouting pipe 120 passes through the center of the support frame 310 , the primary grouting pipe 120 also transmits through the center of the binding wire group 300 , and the secondary grouting pipe 130 passes through the edge of the support frame 310 . In this way, The coverage of the primary grouting through the primary grouting pipe 120 and the grouting through the secondary grouting pipe 130 is larger, and the grouting can be more fully poured into the anchor cable hole 70 .

以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1.基坑砂层锚索自由段渗漏水的治理方法,其特征在于,包括以下施工步骤:1. the treatment method of the seepage water of the free section of the anchor cable of the foundation pit sand layer, is characterized in that, comprises the following construction steps: 1)、在基坑的侧壁上钻挖锚索孔;1), drill the anchor cable hole on the side wall of the foundation pit; 2)、在锚索上布置有一次注浆管和二次注浆管,并将所述锚索下放至所述锚索孔内;2) Arrange a primary grouting pipe and a secondary grouting pipe on the anchor cable, and lower the anchor cable into the anchor cable hole; 3)、所述锚索包括自由段和锚固段,在所述自由段的外周上缠绕有防渗填充物,当所述锚索被下放在所述锚索孔内时,所述锚固段全部置于所述锚索孔内,所述自由段的下部置于所述锚索孔内,所述自由段的上部置于所述锚索孔的外部;3) The anchor cable includes a free section and an anchor section, and an anti-seepage filler is wound around the outer circumference of the free section. When the anchor cable is placed in the anchor cable hole, all the anchor sections are is placed in the anchor cable hole, the lower part of the free segment is placed in the anchor cable hole, and the upper part of the free segment is placed outside the anchor cable hole; 4)、利用所述一次注浆管进行第一次注浆;4), using the primary grouting pipe for the first grouting; 5)、一次注浆完成后,利用所述二次注浆管进行二次注浆,直至浆液从所述锚索孔的孔口处溢出时,停止注浆;5) After the primary grouting is completed, use the secondary grouting pipe to carry out secondary grouting, and stop grouting until the slurry overflows from the orifice of the anchor cable hole; 6)、在所述自由段的上部设置有固定结构,待浆液凝固后,所述锚索通过所述固定结构与所述支护桩进行张拉固定;6) A fixed structure is arranged on the upper part of the free section, and after the slurry is solidified, the anchor cable is tensioned and fixed with the support pile through the fixed structure; 7)、施工完成。7), the construction is completed. 2.如权利要求1所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,在步骤2)中,在下放所述锚索时,将二次注浆管的端头固定在所述锚固段的底端上,随着所述锚索的下放,所述二次注浆管下放至锚索孔的底部。2. The method for treating water leakage in the free section of anchor cable in foundation pit sand layer as claimed in claim 1, wherein in step 2), when the anchor cable is lowered, the end of the secondary grouting pipe is The head is fixed on the bottom end of the anchoring section, and as the anchor cable is lowered, the secondary grouting pipe is lowered to the bottom of the anchor cable hole. 3.如权利要求2所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,在步骤3)中,当所述锚固段的底端下放到所述锚索孔的孔底时,通过所述一次注浆管向所述锚索孔内注浆,当浆液从所述锚索孔的孔口处溢出时,停止注浆,并且沿背离所述孔底方向,将所述锚索向外拉出0.25m,继续注浆。3. The treatment method for water leakage in the free section of anchor cable in foundation pit sand layer as claimed in claim 2, characterized in that, in step 3), when the bottom end of the anchoring section is lowered to the bottom of the anchor cable hole. At the bottom of the hole, grouting is carried out into the anchor cable hole through the primary grouting pipe. When the grout overflows from the orifice of the anchor cable hole, the grouting is stopped, and along the direction away from the hole bottom, the grouting is carried out. The anchor cable is pulled out by 0.25m, and the grouting is continued. 4.如权利要求2所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,在步骤4)中,沿朝向基坑侧壁方向,向固定结构上钻多个钻孔,所述钻孔环绕布置在所述锚索的自由端的端头周围,并向所述钻孔内打入多根朝向不同方向并且嵌入在基坑侧壁的土体中的注浆钢管,所述注浆钢管的管身具有多个钻孔。4. the treatment method of the water seepage of the free section of the anchor cable in the foundation pit sand layer as claimed in claim 2, it is characterized in that, in step 4), along the direction towards the side wall of the foundation pit, drill a plurality of drills on the fixed structure a hole, the drill hole is arranged around the end of the free end of the anchor cable, and a plurality of grouting steel pipes oriented in different directions and embedded in the soil of the side wall of the foundation pit are driven into the drill hole, The pipe body of the grouting steel pipe has a plurality of drilling holes. 5.如权利要求1所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,在步骤4)中,当一次注浆完成后,向所述注浆钢管内进行注浆,直至浆液从所述注浆钢管的孔口漏出,注浆完成,再用使用了固化剂配置而成的浆液对所述注浆钢管的钢管口进行封堵。5. The method for treating leakage of water in the free section of anchor cable in foundation pit sand layer as claimed in claim 1, characterized in that, in step 4), after one-time grouting is completed, injection is carried out in the grouting steel pipe. Grout until the slurry leaks from the orifice of the grouting steel pipe, and the grouting is completed, and then the steel pipe port of the grouting steel pipe is blocked with the slurry prepared by using the curing agent. 6.如权利要求1所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,在步骤5)中,固定结构为腰梁,所述腰梁固定在支护桩上,所述锚索的锚固段穿设在所述腰梁上,并通过锚具进行锚固、张拉,若出现从所述腰梁渗漏水,则在所述腰梁漏水点周围钻孔用注浆速凝灌浆料填塞。6. the treatment method of water leakage in the free section of anchor cable in foundation pit sand layer as claimed in claim 1, it is characterized in that, in step 5), fixed structure is waist beam, and described waist beam is fixed on the support pile , the anchoring section of the anchor cable is worn on the waist beam, and is anchored and tensioned by anchors. If there is water leakage from the waist beam, drill holes around the waist beam leakage point. Filling with quick-setting grouting material. 7.如权利要求1所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,所述腰梁布置在所述支护桩远离所述基坑侧壁的一侧,在支护桩内预先修筑有多根锚筋,多根所述锚筋延伸出支护桩并穿设在所述腰梁内,并通过高压灌注机向锚筋、所述腰梁以及支护桩之间的空隙进行浆液灌注。7. The method for treating water leakage in the free section of anchor cable in foundation pit sand layer according to claim 1, wherein the waist beam is arranged on the side of the support pile away from the side wall of the foundation pit, A plurality of anchor bars are pre-built in the support pile, and the anchor bars extend out of the support pile and pass through the waist beam, and are injected into the anchor bars, the waist beam and the support through a high-pressure pouring machine. The gaps between the piles are filled with grout. 8.如权利要求1所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,将三根钢绞线捆绑在所述一次注浆管的外周形成所述锚索,并且,沿所述钢绞线的长度方向,在三根所述钢绞线的外周捆扎有多个捆扎线组,多个所述捆扎线组均匀间隔布置。8. The method for treating leakage of water in the free section of anchor cable in foundation pit sand layer according to claim 1, wherein the anchor cable is formed by bundling three steel strands on the periphery of the primary grouting pipe, and , along the length direction of the steel strands, a plurality of binding wire groups are bundled on the outer periphery of the three steel strands, and the plurality of the binding wire groups are evenly arranged at intervals. 9.如权利要求1所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,在所述锚索上安装多个支护架,所述支护架的外周朝内凹陷形成凹陷槽,将三个所述钢绞线嵌入在所述凹陷槽内,沿所述锚索的横截面方向,三个所述钢绞线呈等边三角形布置,所述注浆管通孔布置在三个所述钢绞线通孔的中部,沿所述钢绞线的长度方向,多个所述支护架呈均匀间隔布置,所述支护架与所述捆扎线组交错布置。9 . The method for treating water leakage in the free section of anchor cable in foundation pit sand layer according to claim 1 , wherein a plurality of support frames are installed on the anchor cable, and the outer periphery of the support frame faces inward. 10 . The depression forms a depression groove, and the three steel strands are embedded in the depression groove, along the cross-sectional direction of the anchor cable, the three steel strands are arranged in an equilateral triangle, and the grouting pipe The holes are arranged in the middle of the three through-holes of the steel strand, and along the length direction of the steel strand, a plurality of the support brackets are arranged at even intervals, and the support brackets and the bundling wire group are arranged in a staggered manner . 10.如权利要求1所述的基坑砂层锚索自由段渗漏水的治理方法,其特征在于,所述一次注浆管穿过支护架的中心,所述二次注浆管穿设在所述支护架的边部。10. The method for treating water leakage in the free section of the anchor cable in the sand layer of the foundation pit according to claim 1, wherein the primary grouting pipe passes through the center of the support frame, and the secondary grouting pipe passes through the center of the support frame. arranged on the edge of the support frame.
CN202010019651.0A 2020-01-08 2020-01-08 Method for treating water leakage of free section of anchor cable on sand layer of foundation pit Pending CN111236244A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113279404A (en) * 2021-06-24 2021-08-20 中国建设基础设施有限公司 Tension-shear coupling compensation anti-leakage type prestressed anchor rod and construction method
CN113529703A (en) * 2021-06-18 2021-10-22 深圳市工勘岩土集团有限公司 Double-liquid sealing grouting leakage-stopping construction method for foundation pit support anchor cable leakage
CN113529702A (en) * 2021-06-18 2021-10-22 深圳市工勘岩土集团有限公司 Foundation pit support anchor cable seepage double-liquid sealing grouting leakage stoppage construction structure
CN114809007A (en) * 2022-04-25 2022-07-29 中铁一局集团第五工程有限公司 A kind of prestressed anchor cable using mould bag to prevent seepage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121248A (en) * 2010-01-07 2011-07-13 贵州省交通规划勘察设计研究院 Method for reinforcing and fixing sloping surface of prestressed anchorage element
JP5002517B2 (en) * 2008-04-04 2012-08-15 株式会社タニガキ建工 Fixing hardware, slope stabilization structure and slope stabilization method using the same
CN205530282U (en) * 2016-03-26 2016-08-31 安徽同济建设集团有限责任公司 Prestressed anchorage cable
CN106320346A (en) * 2016-08-24 2017-01-11 陕西建工第六建设集团有限公司 Construction method for supporting deep foundation pit through grouting after pile arrangement and anchor cable mounting
CN108411912A (en) * 2018-05-03 2018-08-17 大连理工大学 A kind of convenient method of bolt stress slip casting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5002517B2 (en) * 2008-04-04 2012-08-15 株式会社タニガキ建工 Fixing hardware, slope stabilization structure and slope stabilization method using the same
CN102121248A (en) * 2010-01-07 2011-07-13 贵州省交通规划勘察设计研究院 Method for reinforcing and fixing sloping surface of prestressed anchorage element
CN205530282U (en) * 2016-03-26 2016-08-31 安徽同济建设集团有限责任公司 Prestressed anchorage cable
CN106320346A (en) * 2016-08-24 2017-01-11 陕西建工第六建设集团有限公司 Construction method for supporting deep foundation pit through grouting after pile arrangement and anchor cable mounting
CN108411912A (en) * 2018-05-03 2018-08-17 大连理工大学 A kind of convenient method of bolt stress slip casting

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113529703A (en) * 2021-06-18 2021-10-22 深圳市工勘岩土集团有限公司 Double-liquid sealing grouting leakage-stopping construction method for foundation pit support anchor cable leakage
CN113529702A (en) * 2021-06-18 2021-10-22 深圳市工勘岩土集团有限公司 Foundation pit support anchor cable seepage double-liquid sealing grouting leakage stoppage construction structure
CN113529702B (en) * 2021-06-18 2023-02-28 深圳市工勘岩土集团有限公司 Foundation pit support anchor cable seepage double-liquid sealing grouting leakage stoppage construction structure
CN113529703B (en) * 2021-06-18 2023-02-28 深圳市工勘岩土集团有限公司 Double-liquid sealing grouting leakage-stopping construction method for foundation pit support anchor cable leakage
CN113279404A (en) * 2021-06-24 2021-08-20 中国建设基础设施有限公司 Tension-shear coupling compensation anti-leakage type prestressed anchor rod and construction method
CN114809007A (en) * 2022-04-25 2022-07-29 中铁一局集团第五工程有限公司 A kind of prestressed anchor cable using mould bag to prevent seepage

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