CN103174154A - A method and auxiliary dewatering device for solidly sealing underground building floor water gushing well pits - Google Patents
A method and auxiliary dewatering device for solidly sealing underground building floor water gushing well pits Download PDFInfo
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- CN103174154A CN103174154A CN2013100923322A CN201310092332A CN103174154A CN 103174154 A CN103174154 A CN 103174154A CN 2013100923322 A CN2013100923322 A CN 2013100923322A CN 201310092332 A CN201310092332 A CN 201310092332A CN 103174154 A CN103174154 A CN 103174154A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 139
- 239000010959 steel Substances 0.000 claims abstract description 139
- 238000002791 soaking Methods 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 25
- 238000010276 construction Methods 0.000 claims description 10
- 239000000565 sealant Substances 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 4
- 239000002585 base Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000004873 anchoring Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本发明涉及建筑工程技术领域,具体涉及一种固封地下建筑底板涌水井坑的方法,及实施该方法的辅助降水装置。The invention relates to the technical field of construction engineering, in particular to a method for solidly sealing a water gushing pit on an underground building floor, and an auxiliary dewatering device for implementing the method.
背景技术Background technique
建筑工程技术领域的技术员均知道,在不断有水涌出部位浇筑上的普通混凝土,无论是强度还是密度都是无法保证的。然而,地下室底板,尤其是电梯井底板、后浇带、塔吊基础等低于地下水位的区域,在浇捣混凝土往往存在涌水现象。现行技术的常规做法,主要在其井坑的底部放入潜水泵的方式降水。此举,虽然能起到一定的作用,但仍然没有从根本上解决到实际问题。Technicians in the technical field of construction engineering know that no matter the strength or density of ordinary concrete poured on the part where water gushes out continuously, it cannot be guaranteed. However, the floor of the basement, especially the floor of the elevator shaft, the post-cast belt, the foundation of the tower crane and other areas below the groundwater level, often has water gushing when the concrete is poured. The routine way of existing technology mainly puts into the mode dewatering of submersible pump at the bottom of its well pit. Although this move can play a certain role, it still has not fundamentally solved the actual problem.
因此,迫切需要推出确保浇筑在涌水部位混凝土结构质量的相应方法。Therefore, there is an urgent need to introduce corresponding methods to ensure the quality of the concrete structure poured at the water gushing part.
发明内容Contents of the invention
为了解决上述问题,本发明公开的一种固封地下建筑底板涌水井坑的方法既大大便于施工将浇在涌水部位的混凝土震浇密实,也保障了新浇上的混凝土能顺利胶凝硬化,从而有效确保了浇筑在涌水部位的结构能达到安全要求;本发明还公开了一种实施该固封地下建筑底板涌水井坑的方法的辅助降水装置。In order to solve the above-mentioned problems, the method disclosed by the present invention is a method for sealing the water gushing pit of the underground building floor, which not only greatly facilitates the construction, but also ensures that the newly poured concrete can be gelled and hardened smoothly. Therefore, it is effectively ensured that the structure poured at the water gushing part can meet the safety requirements; the invention also discloses an auxiliary dewatering device for implementing the method for solidly sealing the water gushing pit of the bottom plate of the underground building.
本发明为实现上述目的所采用的技术方案是:The technical scheme that the present invention adopts for realizing the above object is:
一种固封地下建筑底板涌水井坑的方法,其特征在于,包括以下步骤:A method for solidly sealing a well pit for water gushing in an underground building floor, is characterized in that it comprises the following steps:
(1)制备辅助降水装置,该辅助降水装置包括钢构盖板及钢构套筒;(1) Prepare an auxiliary dewatering device, which includes a steel structure cover plate and a steel structure sleeve;
(2)在地下建筑的底板将要浇上混凝土固封的涌水井坑的基面上挖出一凹坑;(2) Dig a pit on the base surface of the water gushing well that will be poured with concrete to seal the floor of the underground building;
(3)底板内的配筋延伸至涌水井坑的凹坑内,将所述钢构套筒竖向放置在所述涌水井坑内,并将配筋与钢构套筒固定;(3) The reinforcement in the bottom plate is extended to the pit of the water gushing well, the steel structure sleeve is vertically placed in the water gushing well pit, and the reinforcement and the steel structure sleeve are fixed;
(4)在所述钢构套筒内放置入潜水泵及配套水管至涌水井坑底部,通过潜水泵将涌水井坑内积水排出,同时在涌水井坑内、钢构套筒外围浇筑上混凝土,潜水泵一直工作直至浇筑到涌水井坑内的混凝土进入初凝期,保障浇到涌水井坑的混凝土便于施工震浇密实和顺利进入到初凝期;(4) Put a submersible pump and supporting water pipes into the steel structure sleeve to the bottom of the water gushing well pit, discharge the accumulated water in the water gushing well pit through the submersible pump, and pour concrete in the water gushing well pit and the periphery of the steel structure sleeve, The submersible pump has been working until the concrete poured into the water gushing pit enters the initial setting period, so as to ensure that the concrete poured into the gushing well pit is convenient for construction to be compacted and enters the initial setting period smoothly;
(5)浇在涌水井坑内的混凝土进入到初凝期后,暂停潜水泵抽排水,让混凝土在泡水状况下胶凝硬化;(5) After the concrete poured in the water gushing pit enters the initial setting period, the submersible pump is suspended to drain the water, so that the concrete is gelled and hardened under the condition of soaking water;
(6)当步骤(5)所述混凝土的强度达到60%以后,启动潜水泵抽排水,当涌水井坑水位降低时,抽出潜水泵及配套水管,及时将所述辅助降水装置的钢构盖板锚固到安装在涌水井坑内的钢构套筒上;(6) When the strength of the concrete described in step (5) reaches 60%, start the submersible pump to pump and drain water. When the water level in the gushing pit is lowered, pull out the submersible pump and supporting water pipes, and cover the steel structure of the auxiliary dewatering device in time. The plate is anchored to the steel sleeve installed in the gushing pit;
(7)在涌水井坑的辅助降水装置上顶外面布扎上钢筋网,再浇上混凝土至齐平于涌水井表面。(7) Lay reinforcement mesh on the top and outside of the auxiliary dewatering device of the gushing well pit, and then pour concrete until it is flush with the surface of the gushing well.
作为本发明的进一步改进,所述步骤(2)具体还包括以下内容,所述涌水井坑的凹坑低于所述基面不少于100mm,直径等于或大于钢构套管内径;所述步骤(3)具体还包括以下内容,所述钢构套筒固定在低于涌水井坑表面不少于50mm的位置。As a further improvement of the present invention, the step (2) specifically also includes the following content, the pit of the water gushing pit is not less than 100mm lower than the base surface, and the diameter is equal to or greater than the inner diameter of the steel casing; The step (3) specifically includes the following content, the steel structure sleeve is fixed at a position not less than 50 mm below the surface of the water gushing pit.
作为本发明的进一步改进,所述钢构套筒下部的钢筒长度不少于100mm;在所述钢构套筒的外壁设有最少一道橡胶止水带;在所述底板内设有面层配筋和底层配筋,在所述钢构套筒的外壁分别焊接与涌水井坑内面层和底层配筋相连接的钢筋或者钢构挂钩。As a further improvement of the present invention, the length of the steel cylinder at the lower part of the steel structure sleeve is not less than 100 mm; at least one rubber waterstop is provided on the outer wall of the steel structure sleeve; a surface layer is provided inside the bottom plate For reinforcement and bottom reinforcement, the outer wall of the steel structure sleeve is welded with steel bars or steel structure hooks connected with the inner surface layer of the water gushing pit and the bottom reinforcement respectively.
作为本发明的进一步改进,所述钢构盖板是以4套或以上锚栓固定在所述钢构套筒的上;钢构盖板与钢构套筒之间设有最少一道弹性密封胶或密封胶圈。As a further improvement of the present invention, the steel structure cover plate is fixed on the steel structure sleeve with 4 or more sets of anchor bolts; at least one elastic sealant is provided between the steel structure cover plate and the steel structure sleeve or sealing ring.
作为本发明的进一步改进,所述钢构盖板设有阀门或塞头。As a further improvement of the present invention, the steel structure cover plate is provided with a valve or a plug.
作为本发明的进一步改进,所述步骤(6)具体还包括以下内容,当在有水压状况下,将钢构盖板锚固在涌水井坑的钢构套筒时,安装在钢构盖板的所述阀门或塞头是处于开启状态,以卸低作用在钢构盖板上的水压,使钢构盖板与钢构套筒能顺利锚固到位,并达到防水固封要求。As a further improvement of the present invention, the step (6) specifically includes the following content. When the steel structure cover is anchored to the steel structure sleeve of the water gushing pit under the condition of water pressure, install it on the steel structure cover The valve or plug is in an open state to reduce the water pressure acting on the steel structure cover plate, so that the steel structure cover plate and the steel structure sleeve can be anchored in place smoothly, and meet the waterproof and solid sealing requirements.
作为本发明的进一步改进,在所述钢构套筒底部设有防止潜水泵堵塞的拦栅构造。As a further improvement of the present invention, the bottom of the steel structure sleeve is provided with a grill structure to prevent the submersible pump from being blocked.
一种实施上述方法的辅助降水装置,其特征在于,其包括钢构盖板及钢构套筒,钢构盖板与钢构套筒之间设有最少一道弹性密封胶或密封胶圈,所述钢构盖板是以4套或以上锚栓固定在所述钢构套筒上;在所述钢构套筒的外壁焊接有钢筋或者钢构挂钩,在所述钢构套筒的外壁设有最少一道橡胶止水带。An auxiliary dewatering device implementing the above method is characterized in that it includes a steel structure cover plate and a steel structure sleeve, and at least one elastic sealant or sealing rubber ring is arranged between the steel structure cover plate and the steel structure sleeve. The steel structure cover plate is fixed on the steel structure sleeve with 4 or more sets of anchor bolts; steel bars or steel structure hooks are welded on the outer wall of the steel structure sleeve, and the outer wall of the steel structure sleeve is provided with There is at least one rubber waterstop.
作为本发明的进一步改进,所述钢构套筒和钢构盖板及锚栓为耐酸碱腐蚀的不锈钢材料,所述钢构套筒下部设有一段不少于100mm长的钢筒;所述钢构盖板设有阀门或塞头。As a further improvement of the present invention, the steel structure sleeve, the steel structure cover plate and the anchor bolt are stainless steel materials resistant to acid and alkali corrosion, and a steel cylinder with a length of not less than 100 mm is provided at the lower part of the steel structure sleeve; The steel structure cover plate is provided with a valve or a plug.
作为本发明的进一步改进,在所述钢构套筒底部设有防止潜水泵堵塞的拦栅构造。As a further improvement of the present invention, the bottom of the steel structure sleeve is provided with a grill structure to prevent the submersible pump from being blocked.
本发明的有益效果:在地下建筑施工中,首先挖出一个涌水井坑,放入专用的辅助降水装置及潜水泵,在潜水泵抽水的过程中,在辅助降水装置周围浇注混凝土,潜水泵工作的同时混凝土进入初凝期,暂停潜水泵抽排水,让混凝土在泡水状况下胶凝硬化;潜水泵停止抽水,待混凝土的硬度达到60%后,潜水泵再次抽水,当水位降低到一定水位后,抽出潜水泵,将辅助降水装置中的钢制钢构盖板锚固在钢制套筒上,并在辅助降水装置上扎上钢筋网,在浇上混凝土;此发明中的方法保证浇在涌水部位的混凝土震浇密实,也保障了新浇上的混凝土能顺利胶凝硬化,从而有效确保了浇筑在涌水部位的结构能达到如人所愿的要求。Beneficial effects of the present invention: in the construction of underground buildings, firstly dig out a water gushing well pit, put in a special auxiliary dewatering device and submersible pump, and pour concrete around the auxiliary dewatering device during the pumping process of the submersible pump, and the submersible pump will work At the same time that the concrete enters the initial setting period, stop the submersible pump to drain water, let the concrete gel and harden under the condition of soaking in water; the submersible pump stops pumping water, and when the hardness of the concrete reaches 60%, the submersible pump pumps water again, when the water level drops to a certain level Finally, take out the submersible pump, anchor the steel steel structure cover plate in the auxiliary dewatering device on the steel sleeve, tie a steel mesh on the auxiliary dewatering device, and pour concrete; the method in this invention ensures that the The concrete at the water gushing part is compacted by shock pouring, which also ensures that the newly poured concrete can be gelled and hardened smoothly, thus effectively ensuring that the structure poured at the water gushing part can meet the desired requirements.
本发明提供的辅助降水装置作为本发明方法实施的必要装置,固定在底板上的配筋上,能够保证涌水部位的混凝土顺利胶凝硬化。The auxiliary dewatering device provided by the present invention, as a necessary device for implementing the method of the present invention, is fixed on the reinforcement on the bottom plate, which can ensure the smooth gelation and hardening of the concrete at the water gushing part.
下面结合附图与具体实施方式,对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
附图说明Description of drawings
图1为本发明的整体结构示意图;Fig. 1 is the overall structure schematic diagram of the present invention;
图2为本发明辅助降水装置结构示意图;Fig. 2 is a structural schematic diagram of the auxiliary dewatering device of the present invention;
图中:In the picture:
1.底板 11.底板基面 12.配筋1.
2.辅助降水装置 21.钢构盖板 22.钢构套筒2.
23.锚栓 24.弹性密封胶 25.橡胶止水带23. Anchor
26.拦栅构造 27.钢筋 3.钢筋网。26.
具体实施方式Detailed ways
实施例,参见图1~图2,本发明提供的固封地下建筑底板1涌水井坑的方法,包括以下步骤:Embodiments, referring to Fig. 1 to Fig. 2, the method for sealing the underground building floor 1 water gushing pit provided by the present invention comprises the following steps:
(1)制备辅助降水装置2,该辅助降水装置2包括钢构盖板21及钢构套筒22,所述钢构盖板21是以4套或以上锚栓23固定在所述钢构套筒22的上;钢构盖板21与钢构套筒22之间设有最少一道弹性密封胶24或密封胶圈,所述钢构盖板21设有阀门或塞头;所述钢构套筒22下部的钢筒长度不少于100mm;在所述钢构套筒22的外壁设有最少一道橡胶止水带25;在所述钢构套筒22底部设有防止潜水泵堵塞的拦栅构造26;(1) Prepare the
(2)在地下建筑的底板将要浇上混凝土固封的涌水井坑的基面11上挖出一凹坑,所述凹坑低于所述基面不少于100mm,直径等于或大于钢构套管内径;在所述涌水井坑的底板1内设有面层配筋12和底层配筋12;在所述钢构套筒22的外壁分别焊接与涌水井坑内面层配筋12和底层配筋12相连接的钢筋27或者钢构挂钩;(2) A pit is dug on the
(3)底板1内的配筋12延伸至涌水井坑的凹坑内,将所述钢构套筒22竖向放置在所述涌水井坑内,并通过配筋12焊接固定在低于涌水井坑表面不少于50mm的位置上;(3) The
(4)在所述钢构套筒22内放置入潜水泵及配套水管至涌水井坑底部,通过潜水泵将涌水井坑内积水排出,同时在涌水井坑内、钢构套筒22外围浇筑上混凝土,混凝土的上表面低于辅助降水装置2的上表面,潜水泵一直工作直至浇筑到涌水井坑内的混凝土进入初凝期,保障浇到涌水井坑的混凝土便于施工震浇密实和顺利进入到初凝期;(4) Place a submersible pump and supporting water pipes in the steel structure sleeve 22 to the bottom of the water well pit, and discharge the accumulated water in the well pit through the submersible pump. Concrete, the upper surface of the concrete is lower than the upper surface of the
(5)浇在涌水井坑内的混凝土进入到初凝期后,暂停潜水泵抽排水,让混凝土在泡水状况下胶凝硬化;(5) After the concrete poured in the water gushing pit enters the initial setting period, the submersible pump is suspended to drain the water, so that the concrete will gel and harden under the condition of soaking water;
(6)当步骤(5)所述混凝土的强度达到60%以后,启动潜水泵抽排水,当涌水井坑水位降低到预定水位时,取出潜水泵及配套水管,及时将所述辅助降水装置2的钢构盖板21锚固到安装在涌水井坑内的钢构套筒22上;当在有水压状况下,安装在钢构盖板21的阀门或塞头处于开启状态,以卸低作用在钢构盖板21上的水压,使钢构盖板21与钢构套筒22能顺利锚固到位,并达到防水固封要求,当钢构盖板21锚固后,关闭阀门或塞头;(6) When the strength of the concrete described in step (5) reaches 60%, start the submersible pump to pump and drain water. When the water level in the gushing well pit drops to the predetermined water level, take out the submersible pump and supporting water pipes, and promptly replace the
(7)在涌水井坑的辅助降水装置2上顶外面布扎上钢筋网3,再浇上混凝土至齐平于涌水井表面,为此,完成对地下建筑底板涌水井坑的固封施工,由于施工时混凝土胶凝状态及质量得到控制,使得混凝土的强度及密度得到保证,由此保证了地下建筑底板涌水井坑的固封质量。(7)
本发明提供的实施上述方法的辅助降水装置2,其包括钢构盖板21及钢构套筒22,所述钢构盖板21是以4套或以上锚栓23固定在所述钢构套筒22上;钢构盖板21与钢构套筒22之间设有最少一道弹性密封胶24或密封胶圈;所述钢构套筒22和钢构盖板21及锚栓23为耐酸碱腐蚀的不锈钢材料;所述钢构套筒22下部设有一段不少于100mm长的钢筒;在所述钢构套筒22的外壁设有最少一道橡胶止水带25;在所述钢构套筒22的外壁焊接有与底板1内设有的内面层配筋12和底层配筋12相配合的钢筋27或者钢构挂钩;所述钢构盖板21设有阀门或塞头,该阀门或塞头的作用是,当在有水压状况下,安装在钢构盖板21的阀门或塞头处于开启状态,以卸低作用在钢构盖板21上的水压,使钢构盖板21与钢构套筒22能顺利锚固到位,并达到防水固封要求。The auxiliary dewatering device 2 for implementing the above method provided by the present invention includes a steel structure cover plate 21 and a steel structure sleeve 22, and the steel structure cover plate 21 is fixed to the steel structure sleeve with 4 or more sets of anchor bolts 23 On the cylinder 22; at least one elastic sealant 24 or sealing rubber ring is provided between the steel structure cover plate 21 and the steel structure sleeve 22; the steel structure sleeve 22, the steel structure cover plate 21 and the anchor bolt 23 are acid-resistant Alkali-corroded stainless steel material; the lower part of the steel structure sleeve 22 is provided with a steel cylinder not less than 100 mm long; at least one rubber waterstop 25 is provided on the outer wall of the steel structure sleeve 22; The outer wall of the structural sleeve 22 is welded with a steel bar 27 or a steel hook that matches the inner surface reinforcement 12 and the bottom reinforcement 12 provided in the bottom plate 1; the steel structure cover 21 is provided with a valve or a plug, The function of the valve or plug is that, when there is water pressure, the valve or plug installed on the steel structure cover 21 is in an open state, so as to lower the water pressure acting on the steel structure cover 21 and make the steel structure cover 21 open. The
本发明的辅助降水装置2与地板配筋12配合使用,根据配筋12的分布调整焊接在钢构套筒22上的钢筋27或者钢构挂钩,辅助降水装置2能够稳定地固定在所需位置,并通过两次混凝土的浇注施工及钢筋网3的辅助作用,达到施工的高要求。The
本发明并不限于上述实施方式,采用与本发明上述实施例相同或近似方法及装置,而得到的其他用于固封地下建筑底板涌水井坑的方法及辅助降水装置,均在本发明的保护范围之内。The present invention is not limited to the above-mentioned embodiments, and other methods and auxiliary dewatering devices for sealing underground building floor water gushing pits obtained by adopting the same or similar methods and devices as the above-mentioned embodiments of the present invention are covered by the protection of the present invention. within range.
Claims (10)
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