CN210368955U - Water sealing structure of anchor cable hole of underground diaphragm wall of water-rich stratum - Google Patents
Water sealing structure of anchor cable hole of underground diaphragm wall of water-rich stratum Download PDFInfo
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- CN210368955U CN210368955U CN201920687887.4U CN201920687887U CN210368955U CN 210368955 U CN210368955 U CN 210368955U CN 201920687887 U CN201920687887 U CN 201920687887U CN 210368955 U CN210368955 U CN 210368955U
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Abstract
The utility model discloses a water-seal structure in anchor rope hole of rich water stratum underground continuous wall, water-seal structure includes: the drilling component is used for drilling the continuous wall body and the soil body to obtain anchor cable holes; the flow control piece is used for plugging fluid in the drilling treatment process; the anchor cable steel strand is arranged in the anchor cable hole; the anchoring section is arranged in the anchor cable hole and is used for fixing the tail part of the anchor cable steel strand; the first plugging section is arranged in the anchor cable hole, and the first plugging section and the anchoring section are matched to form a consolidation body for filling the anchor cable hole; the water stopping piece is arranged at the opening of the anchor cable hole; and the tensioning locking component is used for tensioning and locking the anchor cable steel strand so that the water stop piece blocks the opening of the anchor cable hole. The water sealing structure of the anchor cable hole of the water-rich stratum underground diaphragm wall can effectively seal the anchor cable hole and ensure the construction quality.
Description
Technical Field
The utility model relates to an anchor rope hole seals water technical field, concretely relates to water-rich stratum underground continuous wall's anchor rope hole seal water structure.
Background
The prestressed anchor cable is mainly suitable for viscous water-tight strata or low-water-head strata, often requires no important buildings at the periphery, and also allows temporary precipitation during construction. The key point is whether the water sealing problem in the whole construction process can be effectively solved or not according to the water-rich stratum conditions that underground water is rich, rock stratum cracks are multiple, a sand layer is thick and temporary precipitation outside a foundation pit is limited, the stability of an anchor cable hole, the change of water level and the deformation of a soil layer are related to the stratum conditions. Traditional anchor rope hole seal water structure, it is relatively poor to seal water effect, and construction quality is relatively poor.
SUMMERY OF THE UTILITY MODEL
Based on this, the water sealing structure of the anchor cable hole of the water-rich stratum underground continuous wall is provided, the water sealing treatment can be effectively carried out on the anchor cable hole, and the construction quality is guaranteed.
The technical scheme is as follows:
in one aspect, a water sealing structure for anchor cable holes of a water-rich stratum underground diaphragm wall is provided, which comprises: the drilling assembly is used for drilling holes in the continuous wall body and the soil body to obtain anchor cable holes; the flow control piece is used for plugging fluid in the drilling treatment process; the anchor cable steel strand is arranged in the anchor cable hole; the anchoring section is arranged in the anchor cable hole and used for fixing the tail part of the anchor cable steel strand; the first plugging section is arranged in the anchor cable hole, and the first plugging section and the anchoring section are matched to form a consolidation body for filling the anchor cable hole; the water stopping piece is arranged at the opening of the anchor cable hole; and the tensioning locking component is used for tensioning and locking the anchor cable steel strand so that the water stop piece blocks the opening of the anchor cable hole.
According to the water sealing structure of the anchor cable hole of the underground diaphragm wall in the water-rich stratum, in the process of drilling the diaphragm wall body and the soil body by using the drilling assembly to obtain the anchor cable hole, the fluid such as gushing water or flowing soil in the drilling process is blocked by using the flow control piece, so that a large amount of fluid can be prevented from gushing out, and the water sealing effect in the anchor cable hole forming stage is ensured; the anchor cable steel strand is stretched into the anchor cable hole, then the first solidification liquid is injected into the bottom of the anchor cable hole, and an anchoring section with a preset length is obtained after the first solidification liquid is solidified, so that the tail part of the anchor cable steel strand is fixed, and the installation stability of the anchor cable steel strand is ensured; after the drilling treatment is finished, an anchor cable hole is formed in the soil body, the surrounding stratum of the drilling part is disturbed in the drilling process, the underground water is easy to penetrate and flows out of the drilling casing, then the second solidification liquid is injected into the anchor cable hole, and the underground water can be effectively condensed and blocked by utilizing the first blocking section obtained after the second solidification liquid is solidified; and the tensioning locking component is used for tensioning and locking the anchor cable steel strand, and the water stopping piece is used for sealing water at the tensioning and locking stage of the anchor cable steel strand, so that the water sealing effect is further ensured, the water sealing efficiency is high, and the construction quality is ensured.
The technical solution is further explained below:
in one embodiment, the water sealing structure of the anchor cable hole of the water-rich stratum underground continuous wall further comprises a recharge well, and the recharge well is used for compensating the lowered underground water level in the drilling process. Therefore, groundwater is supplemented, collapse is avoided, and construction safety is guaranteed.
In one embodiment, the drilling assembly includes a drill rod and a drill sleeve disposed on the drill rod. So, can stabilize the pore wall at drilling in-process, avoid collapsing.
In one embodiment, the water sealing structure of the anchor cable hole of the water-rich stratum underground diaphragm wall further comprises an opening sleeve, a liquid injection flow channel and a waist beam arranged on the outer side surface of the diaphragm wall body, the waist beam is provided with an installation cavity communicated with the anchor cable hole, a liquid outlet of the liquid injection flow channel is communicated with an inner cavity of the opening sleeve, the opening sleeve is sleeved on the anchor cable steel strand and arranged in the installation cavity, and the water sealing piece is arranged at an opening of the inner cavity of the opening sleeve.
In one embodiment, the tensioning and locking assembly comprises an anchor backing plate and an anchor, the anchor backing plate and the anchor are all sleeved on the anchor cable steel strand, the water stop piece is arranged between the waist beam and the anchor backing plate, and the anchor backing plate is arranged between the water stop piece and the anchor.
In one embodiment, the water sealing structure of the anchor cable hole of the underground continuous wall of the water-rich stratum further comprises a plugging piece, and the plugging piece is used for plugging the liquid injection flow channel. Thus, external foreign matters are prevented from entering the liquid injection flow channel.
In one embodiment, the water sealing structure of the anchor cable hole of the underground continuous wall of the water-rich stratum further comprises a second plugging section, and the second plugging section is filled in the inner cavity of the open sleeve. Thus, the water sealing effect is further enhanced.
In one embodiment, the liquid injection flow channel comprises a drainage hole which is arranged on the waist beam and penetrates through the side wall of the opening sleeve; or the liquid injection flow channel comprises a drainage tube penetrating through the through hole of the tensioning locking assembly, and a liquid outlet of the drainage tube is communicated with the inner cavity of the open sleeve.
In one embodiment, the distance between the outer side surface of the continuous wall body and the upper end surface of the anchoring section is 3-5 m. Therefore, the anchoring section has good effect of stabilizing the anchor cable steel strand.
In one embodiment, the water stop is provided as a water-swellable stop. Therefore, the water-swelling seal device is far away by utilizing water swelling and has good water sealing effect.
Drawings
FIG. 1 is a schematic structural diagram of a water sealing structure of anchor cable holes of a water-rich formation underground continuous wall according to an embodiment;
FIG. 2 is a schematic structural diagram of a consolidation body of a water sealing structure of an anchor cable hole of the underground continuous wall of the water-rich stratum of FIG. 1;
FIG. 3 is a schematic structural view of a water stop member and a tension locking assembly of the water sealing structure of the anchor cable hole of the underground diaphragm wall of the water-rich stratum of FIG. 1;
FIG. 4 is a schematic structural diagram of a water-sealing structure of anchor cable holes of a water-rich formation underground continuous wall according to another embodiment;
FIG. 5 is a schematic structural diagram of a consolidation body of the water sealing structure of the anchor cable hole of the underground continuous wall of the water-rich formation in FIG. 4;
fig. 6 is a schematic structural diagram of a water stop member and a tensioning locking assembly of the water sealing structure of the anchor cable hole of the underground diaphragm wall of the water-rich stratum of fig. 4.
Description of reference numerals:
100. drilling subassembly, 110, drilling rod, 120, drilling sleeve pipe, 200, accuse flow piece, 300, anchor rope steel strand wires, 400, anchor section, 500, first shutoff section, 600, stagnant water spare, 700, stretch-draw locking subassembly, 710, anchor backing plate, 720, ground tackle, 800, recharge well, 910, opening sleeve pipe, 920, notes liquid runner, 921, drainage hole, 922, drainage tube, 930, waist rail, 931, installation cavity, 932, the lateral surface of waist rail, 1000, second shutoff section, 2000, diaphragm wall body, 2100, the lateral surface of diaphragm wall body, 3000, anchor rope hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured" to, or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," "pivotally connected," to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the present invention, the terms "first", "second", "third", and the like do not denote any particular quantity or order, but rather are used to distinguish one name from another.
As shown in fig. 1 to 3, in one embodiment, a water sealing structure of an anchor cable hole 3000 of a water-rich formation underground diaphragm wall is disclosed, which includes: the drilling assembly 100 is used for drilling the diaphragm wall body 2000 and the soil body to obtain an anchor cable hole 3000; the flow control piece 200, wherein the flow control piece 200 is used for plugging fluid in the drilling treatment process; the anchor cable steel strand 300 is arranged in the anchor cable hole 3000; the anchoring section 400, the anchoring section 400 is arranged in the anchor cable hole 3000, and the anchoring section 400 is used for fixing the tail part of the anchor cable steel strand 300; the first plugging section 500 is arranged in the anchor cable hole 3000, and the first plugging section 500 and the anchoring section 400 are matched to form a consolidation body for filling the anchor cable hole 3000; the water stopping piece 600 is arranged at the opening of the anchor cable hole 3000; and the tensioning locking assembly 700 is used for tensioning and locking the anchor cable steel strand 300, so that the water stop piece 600 blocks the opening of the anchor cable hole 3000.
In the water sealing structure of the anchor cable hole 3000 of the underground diaphragm wall in the water-rich stratum of the embodiment, in the process of drilling the diaphragm wall body 2000 and the soil body by using the drilling assembly 100 to obtain the anchor cable hole 3000, the fluid such as gushing water or flowing soil in the drilling process is blocked by using the flow control member 200, so that a large amount of fluid can be prevented from gushing out, and the water sealing effect of the anchor cable hole 3000 in the pore-forming stage is ensured; the anchor cable steel strand wires extend into the anchor cable hole 3000, then the first solidification liquid is injected into the bottom of the anchor cable hole 3000, and the anchoring sections 400 with preset lengths are obtained after the first solidification liquid is solidified, so that the tail parts of the anchor cable steel strand wires 300 are fixed, and the installation stability of the anchor cable steel strand wires 300 is guaranteed; after the drilling treatment is finished, the anchor cable hole 3000 is formed in the soil body, the peripheral stratum of the drilling part is disturbed in the drilling process, the underground water is easy to penetrate and flows out of the drilling casing 120, then the second solidification liquid is injected into the anchor cable hole 3000, and the first plugging section 500 obtained after the second solidification liquid is solidified can effectively condense and plug the underground water; and then, the tensioning locking assembly 700 is used for tensioning and locking the anchor cable steel strand 300, and the water seal piece 600 is used for sealing water in the tensioning and locking stage of the anchor cable steel strand 300, so that the water sealing effect is further ensured, the water sealing efficiency is high, and the construction quality is ensured.
The drilling assembly 100 may be a rotary drill bit or other assembly capable of drilling a hole in the diaphragm wall body 2000 and earth.
As shown in fig. 1 and 4, in one embodiment, the drilling assembly 100 includes a drill rod 110 and a drill sleeve 120, the drill sleeve 120 being disposed over the drill rod 110. Thus, the drill rod 110 and the drill sleeve 120 can be synchronously drilled into the continuous wall body 2000 and then synchronously drilled into the soil body, so that the anchor cable hole 3000 with the preset depth is obtained, and the drill sleeve 120 can stabilize and support the hole wall in the drilling process, so that the collapse in the drilling process is avoided; meanwhile, in the process of drilling the drill rod 110 and the drilling sleeve 120, the flow control member 200 is used for effectively blocking fluid such as gushing water or flowing soil, for example, the flow control member 200 is used for blocking fluid gushing from the drilling sleeve 120, so that the water blocking effect of the anchor cable hole 3000 in the hole forming stage can be ensured. Of course, in other embodiments, the drill rod 110 and the drill casing 120 may be drilled out of phase, only the anchor cable hole 3000 that can be drilled to a predetermined depth is needed. Flow control member 200 may be an orifice flow control device or other element capable of blocking fluid during drilling.
In one embodiment, on the premise of meeting the flatness of the orifice flow controller and the anchor cable angle, the orifice flow controller is connected with the continuous wall body 2000 in a bolt connection mode, then the drilling drill rod 110 and the drilling casing 120 are used for drilling the continuous wall body 2000 and the soil body, and the orifice flow controller can effectively control the flowing water pressure in the drilling treatment process and prevent the soil body from flowing out.
The length of anchor section 400 can carry out nimble regulation according to the in-service use demand, only need satisfy can carry out stable fixed with anchor rope steel strand wires 300 can. The tail of the anchor cable steel strand 300 refers to the end of the anchor cable steel strand 300 away from the continuous wall body 2000.
As shown in fig. 2 and 5, in one embodiment, the distance between the outer side surface 2100 of the continuous wall body 2000 and the upper end surface of the anchoring section 400 is 3m to 5m (as shown by L in fig. 2). Thus, the first solidification liquid is solidified to obtain the anchor section 400, and at this time, the distance between the opening of the anchor cable hole 3000 and the upper end surface of the anchor section 400 is 3m to 5m (3m, 4m, or 5m), so that the anchor section 400 can stably and reliably fix the anchor cable steel strand 300. Here, the upper end surface of the anchor segment 400 is an end surface closer to the outer side surface 2100 of the continuous wall body 2000.
The first setting fluid may be cement grout or other setting fluid capable of stably installing and fixing the tail of the cable rope strand 300, and may be ordinary portland cement grout, for example. The second solidification liquid may be a two-liquid slurry or other solidification liquid that satisfies the solidification strength.
In one embodiment, a predetermined amount of cement grout is injected into the anchor cable hole 3000, so that the distance between the upper end surface of the anchoring section 400 obtained after the cement grout is solidified and the outer side surface 2100 of the continuous wall body 2000 is 3m to 5m, then double grout with an appropriate proportion is injected into the anchor cable hole 3000 according to a predetermined grouting speed and grouting pressure until the anchor cable hole 3000 is filled, and the first plugging section 500 with the strength meeting the requirement is obtained after the double grout is solidified. Wherein, the mass ratio of the cement paste to the water glass paste in the double-slurry can be controlled to be 1: 1, the baume degree of the water glass slurry can be about 3, the grouting pressure can be controlled within the range of 1MPa to 2MPa, and the grouting speed can be controlled within the range of 30L/min to 50L/min.
The water stop 600 may be a water-swellable stop or other element capable of blocking the opening of the anchor cable hole 3000. The water-swelling water stop strip can be made of rubber, and the plugging effect is good. In one embodiment, the water-swellable seal is disposed around and wrapped around the anchor cable steel strand 300 to ensure a water-sealing effect.
As shown in fig. 1 and 4, in one embodiment, the water sealing structure of the anchor cable hole 3000 of the underground diaphragm wall of the water-rich formation further comprises a recharge well 800, and the recharge well 800 is used for compensating for the lowered groundwater level during the drilling process. Considering that a certain amount of gushing water or fluid such as flowing soil gushes out in the actual drilling process, the flow of the gushing fluid is detected by the flow control piece 200, so that the underground water level can be effectively monitored in real time, meanwhile, the recharge well 800, for example, a steel filter pipe is arranged, according to the flow of the gushing fluid detected by the flow control piece 200, the lowered underground water level in the drilling treatment process is compensated by the recharge well 800, so that the underground water level is kept at the same horizontal plane, the problem of ground settlement of the upper part of the foundation pit caused by the descent of the underground water level is avoided, and the construction quality and the construction safety are ensured.
As shown in fig. 3 and 6, in an embodiment, the water sealing structure of the anchor cable hole 3000 of the water-rich formation underground diaphragm wall further includes an open sleeve 910, a liquid injection flow channel 920 and a waist beam 930 disposed on the outer side surface 2100 of the diaphragm wall body 2000, the waist beam 930 is provided with a mounting cavity 931 communicating with the anchor cable hole 3000, a liquid outlet of the liquid injection flow channel 920 is communicated with an inner cavity of the open sleeve 910, the open sleeve 910 is sleeved on the anchor cable steel strand 300 and disposed in the mounting cavity 931, and the water sealing member 600 is disposed at an opening of the inner cavity of the open sleeve 910. Thus, the anchor cable steel strand 300 is sleeved with the open sleeve 910, and meanwhile, the liquid injection flow channel 920 is arranged, so that a liquid outlet of the liquid injection flow channel 920 is communicated with an inner cavity of the open sleeve 910. The inner cavity of the opening sleeve 910 is communicated with the anchor cable hole 3000, so that the seepage path of flowing water is increased, the seepage difficulty is increased, and the water sealing effect is improved; the open casing 910 may be made of PVC (Polyvinyl chloride), which is cheap, or halogen-free polyolefin. A wale 930 is disposed on the outer side 2100 of the diaphragm wall body 2000, and the wale 930 is disposed around the open sleeve 910. Thus, the waist rail 930 is provided with the installation cavity 931 for installing the split sleeve 910, so that the split sleeve 910 can be stably and reliably installed; meanwhile, the wale 930 may be made of concrete, and the wale 930 may also have a water sealing effect on the opening of the anchor cable hole 3000. The water stop piece 600 is arranged at the opening of the inner cavity of the open sleeve 910, and the anchor cable steel strand 300 is subjected to tensioning locking treatment, so that the water stop piece 600 blocks the opening of the inner cavity of the open sleeve 910. Thus, the water seal 600 is used for sealing the opening of the inner cavity of the open sleeve 910 in the tensioning and locking stage, and the water sealing effect is ensured.
It should be noted that, in order to ensure that the water stop member 600 can be tightly attached to the outer side surface 932 of the waist rail 930, the flatness of the outer side surface 932 of the waist rail 930 can be adjusted by polishing, correcting and other modes, and then the water stop member 600 is placed on the outer side surface 932 of the waist rail 930 with the flatness meeting the requirement, so that the water stop member 600 can be better attached to the outer side surface 932 of the waist rail 930, the opening of the inner cavity of the opening sleeve 910 can be better plugged, and the water sealing effect is good; installation parts such as installation grooves can be arranged on the outer side surface 932 of the waist beam 930, the water stop piece 600 can be tightly installed, and the water sealing effect is improved.
Further, the water sealing structure of the anchor cable hole 3000 of the underground diaphragm wall of the water-rich stratum further comprises a plugging piece (not shown), and the plugging piece is used for plugging the liquid injection flow channel 920. In this way, the liquid injection flow channel 920 is blocked by the blocking piece, so that the liquid injection flow channel 920 can be prevented from being blocked by sundries such as concrete, and the subsequent failure of liquid injection on the inner cavity of the open sleeve 910 can be avoided; and impurities such as concrete can be prevented from entering the inner cavity of the split sleeve 910 along the liquid injection flow passage 920, so that the inner cavity of the split sleeve 910 is prevented from being polluted. The block piece is taken out from the liquid injection flow passage 920 in the tension locking stage, so that the contraction in the tension locking stage can be smoothly performed. Wherein the closure may be a foam, polymer or other element that facilitates closure and removal.
As shown in fig. 3 and 6, in one embodiment, the tension-locking assembly 700 includes an anchor pad 710 and an anchor 720, the anchor pad 710 and the anchor 720 are both sleeved on the anchor cable steel strand 300, the water stop 600 is disposed between the wale 930 and the anchor pad 710, and the anchor pad 710 is disposed between the water stop 600 and the anchor 720. So, establish anchor backing plate 710 and ground tackle 720 at anchor rope steel strand 300 cover in proper order, utilize ground tackle 720 to make anchor rope steel strand 300 keep prestressing force and tensioning locking, simultaneously, make anchor backing plate 710 closely laminate to on stagnant water piece 600, make the inseparable laminating of stagnant water piece 600 to waist rail 930 on, thereby can carry out tight shutoff with the hole between anchor backing plate 710 and the waist rail 930, and then with the opening of opening sleeve 910's inner chamber isolated with external, avoid the fluid to spill over through the hole between anchor backing plate 710 and the waist rail 930 after flowing out from the opening of opening sleeve 910's inner chamber, further strengthened water sealing effect. The anchor pad 710 may be provided with a steel plate for a first through-hole through which the anchor cable steel strand 300 passes. Anchor 720 may be a circular anchor 720 having a second through-hole for anchor line steel strand 300 to pass through.
When it needs to be explained, in order to ensure the reliability of the operation of the tensioning locking assembly 700, the anchor cable steel strand 300 and the anchor backing plate 710 may be subjected to a rust removal treatment, and a waterproof coating may be applied to the anchor cable steel strand 300 and the anchor backing plate 710. In this way, the anchor cable steel strand 300 and the anchor backing plate 710 can continuously, stably and reliably work by carrying out rust removal treatment in a polishing mode, an electroplating mode and the like, and the erosion progress of the anchor cable steel strand 300 and the anchor backing plate 710 is slowed down; meanwhile, the corrosion of the anchor cable steel strand 300 and the anchor backing plate 710 by external foreign matters such as water can be further avoided by spraying waterproof coatings such as polyurethane waterproof paint and acrylic emulsion, and the service lives of the anchor cable steel strand 300 and the anchor backing plate 710 are prolonged.
As shown in fig. 2, fig. 3, fig. 5 and fig. 6, in one embodiment, the water sealing structure of the anchor cable hole 3000 of the underground continuous wall of the water-rich formation further comprises a second plugging section 1000, and the second plugging section 1000 is filled in the inner cavity of the open casing 910. In this way, the injection flow channel 920 is used to inject the third solidification liquid into the inner cavity of the open sleeve 910 until the third solidification liquid overflows from the liquid inlet of the injection flow channel 920, so as to obtain the second plugging section 1000. When the anchor cable steel strand 300 is subjected to tensioning locking treatment, the anchor cable steel strand 300 is acted by force, so that the consolidation bodies of the anchor cable steel strand 300, such as the anchoring section 400 and the first plugging section 500, are relatively displaced with respect to the soil body, and fluids such as groundwater are easy to flow out along the gap between the consolidation bodies and the soil body. Therefore, after the anchor cable steel strand 300 is subjected to tensioning and locking treatment, the third solidification liquid is injected into the inner cavity of the open casing 910 through the liquid injection flow channel 920 until the inner cavity of the open casing 910 is filled with the third solidification liquid, so that the second plugging section 1000 formed by the condensation of the third solidification liquid is used for further plugging the fluid such as groundwater, and the water sealing effect is further enhanced. The third solidification liquid may be water-solidified grouting liquid or other solidification liquid capable of plugging the opening of the anchor cable hole 3000 after solidification; for example, the third solidification liquid can be AB water solidification grouting liquid, wherein the mass ratio of A/B is preferably 1: 1, the liquid injection pressure of the AB water solidification slurry injection liquid can be controlled within 1Mpa until the AB water solidification slurry injection liquid overflows from a liquid inlet of the liquid injection flow channel 920, the component A is a main agent, and the component B is a curing agent. And, after obtaining the second plugging section 1000, cleaning the relevant opening part.
The liquid injection flow channel 920 may be a hole formed therein or an additional pipe, and only needs to communicate the inner cavity of the open sleeve 910 with the outside so as to inject liquid.
As shown in fig. 6, in one embodiment, the injection flow channel 920 includes a drainage hole 921 disposed on the wale 930 and through a sidewall of the open sleeve 910. Therefore, the third solidification liquid is injected from the liquid inlet of the drainage hole 921 so that the third solidification liquid can flow into the inner cavity of the open sleeve 910, which is convenient and fast.
As shown in fig. 3, in one embodiment, the injection flow channel 920 includes a drain 922 passing through the through hole of the tension lock assembly 700, and a liquid outlet of the drain 922 communicates with an inner cavity of the open sleeve 910. Thus, the third coagulating liquid can be injected from the liquid inlet of the drainage tube 922 so that the third coagulating liquid flows into the inner cavity of the open sleeve 910. The drainage tube 922 can be fixedly arranged on the anchor cable steel strand 300, the drainage tube 922 can be placed at the correct position when the anchor cable steel strand 300 is put into the anchor cable hole 3000, the opening sleeve 910 is sleeved on the anchor cable steel strand 300, a liquid outlet of the drainage tube 922 is communicated with an inner cavity of the opening sleeve 910, and one end, where a liquid inlet of the drainage tube 922 is located, sequentially penetrates through the first through hole of the anchor backing plate 710 and the second through hole of the anchor 720 to be communicated with the outside.
The water sealing structure of the anchor cable hole 3000 of the water-rich stratum underground continuous wall of the embodiment at least has the following advantages: (1) the water can be effectively sealed in the anchor cable hole 3000 hole forming stage, the problems of ground collapse and settlement in the hole forming stage can be effectively avoided, and the construction safety and the construction quality are ensured; (2) the seepage path of flowing water is prolonged, and the seepage difficulty is increased; (3) the water sealing can be effectively carried out at the tensioning and locking stage of the anchor cable steel strand 300, and the water sealing effect is good; (4) and the prefabricated material is adopted, the operation is simple, the construction efficiency is high, the earthwork excavation and the construction of the peripheral anchor cable cannot be influenced, and the economic benefit is remarkable.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples represent only a few embodiments of the present invention, which are described in detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a water seal structure in anchor rope hole of water-rich stratum underground continuous wall which characterized in that includes:
the drilling assembly is used for drilling holes in the continuous wall body and the soil body to obtain anchor cable holes;
the flow control piece is used for plugging fluid in the drilling treatment process;
the anchor cable steel strand is arranged in the anchor cable hole;
the anchoring section is arranged in the anchor cable hole and used for fixing the tail part of the anchor cable steel strand;
the first plugging section is arranged in the anchor cable hole, and the first plugging section and the anchoring section are matched to form a consolidation body for filling the anchor cable hole;
the water stopping piece is arranged at the opening of the anchor cable hole; and
and the tensioning locking component is used for tensioning and locking the anchor cable steel strand so that the water stop piece blocks the opening of the anchor cable hole.
2. The water sealing structure for the anchor cable hole of the water-rich formation underground diaphragm wall as claimed in claim 1, further comprising a recharge well for compensating for a lowered groundwater level during drilling.
3. The water seal structure of the anchor cable hole of the water-rich formation underground diaphragm wall as recited in claim 1, wherein the drilling assembly comprises a drill pipe and a drill sleeve, and the drill sleeve is sleeved on the drill pipe.
4. The water sealing structure for the anchor cable hole of the water-rich formation underground diaphragm wall as claimed in claim 1, further comprising an opening sleeve, a liquid injection flow channel and a waist beam arranged on the outer side surface of the diaphragm wall body, wherein the waist beam is provided with an installation cavity communicated with the anchor cable hole, a liquid outlet of the liquid injection flow channel is communicated with an inner cavity of the opening sleeve, the opening sleeve is sleeved on the anchor cable steel strand and arranged in the installation cavity, and the water seal member is arranged at an opening of the inner cavity of the opening sleeve.
5. The water sealing structure for the anchor cable hole of the water-rich formation underground diaphragm wall as recited in claim 4, wherein the tensioning and locking assembly comprises an anchor backing plate and an anchor, the anchor backing plate and the anchor are both sleeved on the anchor cable steel strand, the water stop member is disposed between the waist beam and the anchor backing plate, and the anchor backing plate is disposed between the water stop member and the anchor.
6. The water sealing structure of the anchor cable hole of the water-rich formation underground continuous wall as claimed in claim 4, further comprising a plugging member, wherein the plugging member is used for plugging the liquid injection flow channel.
7. The water sealing structure of the anchor cable hole of the water-rich formation underground continuous wall is characterized by further comprising a second plugging section, wherein the second plugging section is filled in the inner cavity of the open sleeve.
8. The water sealing structure of the anchor cable hole of the underground continuous wall of the water-rich stratum as claimed in claim 4, wherein the liquid injection flow channel comprises a drainage hole which is arranged on the wale and penetrates through the side wall of the open sleeve; or the liquid injection flow channel comprises a drainage tube penetrating through the through hole of the tensioning locking assembly, and a liquid outlet of the drainage tube is communicated with the inner cavity of the open sleeve.
9. The water sealing structure of the anchor cable hole of the water-rich formation underground continuous wall as recited in any one of claims 1 to 8, wherein the distance between the outer side surface of the continuous wall body and the upper end surface of the anchoring section is 3m to 5 m.
10. The water sealing structure for the anchor cable hole of the underground continuous wall of the water-rich stratum as claimed in any one of claims 1 to 8, wherein the water stop member is a water-swelling water stop strip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920687887.4U CN210368955U (en) | 2019-05-14 | 2019-05-14 | Water sealing structure of anchor cable hole of underground diaphragm wall of water-rich stratum |
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| CN201920687887.4U CN210368955U (en) | 2019-05-14 | 2019-05-14 | Water sealing structure of anchor cable hole of underground diaphragm wall of water-rich stratum |
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| CN210368955U true CN210368955U (en) | 2020-04-21 |
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| CN110158589A (en) * | 2019-05-14 | 2019-08-23 | 中铁建华南建设有限公司 | The Water sealing method and its seal water structure of the anchor cable hole of water rich strata diaphram wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110158589A (en) * | 2019-05-14 | 2019-08-23 | 中铁建华南建设有限公司 | The Water sealing method and its seal water structure of the anchor cable hole of water rich strata diaphram wall |
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