WO2022236954A1 - 装配整体式组合拱形截面沉井预制构件和施工方法 - Google Patents

装配整体式组合拱形截面沉井预制构件和施工方法 Download PDF

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WO2022236954A1
WO2022236954A1 PCT/CN2021/106052 CN2021106052W WO2022236954A1 WO 2022236954 A1 WO2022236954 A1 WO 2022236954A1 CN 2021106052 W CN2021106052 W CN 2021106052W WO 2022236954 A1 WO2022236954 A1 WO 2022236954A1
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wall
arch
outer longitudinal
walls
joints
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PCT/CN2021/106052
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English (en)
French (fr)
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贾强
张鑫
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山东建筑大学
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Publication of WO2022236954A1 publication Critical patent/WO2022236954A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D23/00—Caissons; Construction or placing of caissons
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D23/00—Caissons; Construction or placing of caissons
    • E02D23/08—Lowering or sinking caissons
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D25/00—Joining caissons, sinkers, or other units to each other under water

Definitions

  • the invention relates to the field of caisson design and assembly, in particular to a component joint and construction method of an assembled integral combined arched section caisson type underground garage.
  • the caisson-type underground garages with combined arched sections are all arched walls on the outside of the caisson-type underground garages (CN 202110174420.1). , may not be reinforced or less reinforced.
  • the structural shape is symmetrical, the internal force is balanced, the force is reasonable, and the cross-sectional size of the components is small. Its overall space is close to a rectangle, which is conducive to the layout of parking spaces and has a high space utilization rate.
  • the assembled integral concrete structure has a high level of industrialization, is convenient for winter construction, reduces the amount of wet work on site, reduces waste of materials, reduces dust and noise on the construction site, so as to achieve the purpose of improving construction quality, increasing production efficiency, saving energy and reducing emissions, and protecting the environment. Therefore, the construction method of assembling the caisson-type underground garage with a combined arched section into a whole through prefabricated components is more in line with the development trend of modern industries. Among them, the joints and assembly methods of components become the key to the construction of caissons with integral composite arched sections.
  • the object of the present invention is to propose a prefabricated component and a construction method of an assembled integrally combined arched section caisson aiming at the stress characteristics of the combined arched section caisson.
  • the embodiment of the present invention provides an assembled integral composite arch section caisson prefabricated component, including at least one central standard unit and a semicircular arch wall at the end;
  • the central standard unit is composed of two outer longitudinal arch walls and a transverse connecting wall connecting the ends of the outer longitudinal arch walls; There are door openings for vehicles to pass through; at both ends of the central standard unit, semicircular arch walls are set at the ends, and the arch ring of the arch wall should also face the side of the soil, and a spiral ramp is set in the space of the arch wall as a way for vehicles to go up. ,
  • the access to the lower floor; the semicircular arch wall at the end should extend from the caisson type garage to the ground;
  • a convex joint is provided on the two non-arched surfaces of the outer longitudinal arch wall and the semicircular arch wall, and bifurcated walls are provided on the two opposite surfaces of the transverse connecting wall.
  • Each bifurcated wall is provided with concave joints; the four concave joints on the middle horizontal connecting wall are respectively matched with the convex joints on the four outer longitudinal arch walls, and the four concave joints on the outermost horizontal connecting wall
  • the inner concave joint is matched with the outer convex joint of the two outer longitudinal arch walls and the outer convex joint of the two semicircular arch walls respectively.
  • an outwardly extending shear key is provided at the bottom of the joints on both sides of the outer longitudinal arch wall and the semicircular arch wall; an inward shearing groove is provided at the bottom of the joint at both ends of the transverse connecting wall, the The inner shrinkage shear groove is matched with the outer extension shear key.
  • bolts are arranged up and down near the connection between the horizontal connecting wall and the outer longitudinal arch wall and the semicircular arch wall, and the bolts connect the transverse connecting wall with the outer longitudinal arch wall and the semicircular arch wall.
  • the horizontal connection wall located between the floors and the outer longitudinal arch wall and the top and bottom of the semicircular arch wall are also provided with mutually matching concave joints and Male connector.
  • the bottom surface of the underlying component is made as a blade foot.
  • intersecting steel supports are set between the adjacent horizontal connecting walls on the ground floor.
  • the present invention also provides a construction method based on the above components, comprising the following steps:
  • the assembly joint designed by the present invention has simple structure and reliable connection. With the help of water and earth pressure in the horizontal direction and the self-weight of the vertical components, the horizontal and vertical joints are more stable.
  • the horizontal joint is located at a position where the structural bending moment is small or close to zero. It is only necessary to set the bolt connection to bear the tension and pressure, and it is not necessary to set the integral joint to bear the bending moment.
  • Utilizing the joint of the present invention realizes the prefabricated assembly construction of the underground caisson garage, improves component standardization and engineering quality, reduces material storage yards and on-site concrete pouring operations, and saves labor.
  • Fig. 1 is the outline plan view of the components before assembly of the combined arched section caisson;
  • Figure 2 is a schematic diagram of the overall structure of the combined arched section caisson after assembly
  • Fig. 3 is the front view of longitudinal outer arch wall
  • Fig. 4 is the side view of horizontal connection wall
  • Fig. 5 is a schematic diagram after connecting the horizontal connecting wall and the longitudinal connecting wall
  • Fig. 6 is the schematic diagram before the upper and lower horizontal connecting walls are connected
  • Fig. 7 is the schematic diagram after connecting the upper and lower horizontal connecting walls
  • Fig. 8 is a schematic diagram of the overall structure of the combined arched section caisson with steel support after assembly
  • Terminology explanation part the "horizontal" and “longitudinal” described in this embodiment only represent the orientation, and there is no specific limiting effect. Taking the orientation shown in Figure 1 as an example, the front and rear directions are horizontal, and the left and right directions are vertical.
  • the applicant proposed an assembled integral garage structure based on the caisson type underground garage with combined arched section disclosed in the application number CN202110174420.1, wherein the caisson type underground garage with combined arched section
  • the garage includes at least one central standard unit and a semicircular arch wall at the end;
  • the central standard unit is composed of two outer longitudinal arch walls and a transverse connecting wall connecting the ends of the outer longitudinal arch walls;
  • the arch of the outer longitudinal arch walls The circle is facing the side of the soil, and there are door openings for vehicles to pass through on the horizontal connecting wall;
  • the end semicircular arch walls are set at both ends of the central standard unit, and the arch ring of the arch wall is also facing the soil.
  • a spiral ramp is set in the space of the arch wall as a passage for vehicles going up and down floors; the semicircular arch wall at the end should extend from the caisson garage to the ground.
  • the applicant proposes to design the caisson-type underground garage with a combined arched section as a prefabricated component, and then assemble it into an overall structure.
  • this embodiment proposes an assembled integral composite caisson type underground garage component with arched section and a construction method.
  • This embodiment proposes an assembled integral composite arch section caisson type underground garage component.
  • the design principle of the component unit is: in the horizontal direction, each horizontal connecting wall and the outer longitudinal arch between two adjacent horizontal connecting walls The wall and each semicircular arch wall at both ends are individually used as component manufacturing units; in the vertical direction, the floor height of the existing underground garage is used as the basis for dividing the manufacturing units;
  • the components mainly include a plurality of transverse connecting walls 2, outer longitudinal arch walls 1 between adjacent transverse connecting walls, and semicircular arch walls 3 at both ends; in Figure 1, the transverse connecting walls 2 Set four, the outer longitudinal arch wall 1 includes 6, and the semicircular arch wall 3 includes 2; it should be noted that the number of transverse connecting walls 2 and outer longitudinal arch walls 1 is not limited to the The quantity is set according to the actual size of the underground area of the building.
  • the left and right ends of the outer longitudinal arch wall 1 are made into convex joints 4, and the protruding part of the joint is located on the outside of the wall; at the same time, the front and rear ends of the transverse connecting wall 2 are made into left and right bifurcated walls with the same radian as the connected arch wall , the end of the left and right bifurcated wall is made as a concave joint 5, and the protruding part is positioned at the inner side of the wall.
  • the front and rear ends of the semicircular arch wall 3 are all made into convex joints; the protruding parts of each joint have the same height and a thickness of 1/2 the thickness of the arch wall.
  • each joint is on the side of the corresponding wall and runs through the entire wall in the height direction.
  • the convex joints of the outer longitudinal arch wall 1 and the semicircular arch wall 3 can be connected with the inner concave joints of the transverse connecting wall 2 under the pressure.
  • the bottom can be tightly connected together.
  • an outstretched shear key is set on the bottom side of the joints at the two ends of the longitudinal arch wall 1 and the semicircular arch wall 3 outside the caisson, see Figure 3, which shows the longitudinal arch wall outside the caisson Schematic diagram of the structure, an outstretched shear key 9 is provided on the left and right sides of the lower part of the longitudinal arch wall outside the caisson; at the same time, a Inner shrinkage shear groove 10.
  • the height of the outwardly extending shear key 9 and the retractable shear groove 10 is equivalent to the thickness along the wall direction. Rely on the vertical pressure of the horizontal connecting wall to ensure that the two are tightly connected.
  • bolts are used to connect the horizontal connection wall with the outer longitudinal arch wall and the semicircular arch wall.
  • Two sets of connecting bolts are set up and down near the junction between the arch walls.
  • the horizontal length of perforation 6 is greater than the length of the screw rod
  • the vertical dimension of perforation 6 is greater than the diameter of the screw rod, so that the smooth installation of the screw rod.
  • the opening 7 on the inner wall of the horizontal connection wall has a horizontal length greater than the length of the nut, and the vertical dimension of the opening 7 is greater than the diameter of the screw rod, so that the nut can be installed smoothly.
  • the depth of the two openings should be at the center of the wall thickness, so that after the bolts are installed, the tension of the bolts will not have a large eccentric effect on the components.
  • the bolt processing length should be greater than the distance between the two holes plus the length of the nut.
  • this embodiment also designs interlayer connection joints.
  • the top surface joints of the lower layer components are made in the form of convex inward and outward concave, and the joints on the bottom surface of the upper layer components are made inwardly concave and externally concave. Convex form, the cross-sectional dimensions of the two match.
  • the top surface joint of the upper member is made in the form of inward convex and outer concave, and the bottom surface joint of the lower member is made in the form of inner concave and outer convex; see Figure 6 for details.
  • Figure 6 shows the structure of the upper and lower members.
  • the joints on the bottom surface of the upper member are made in the form of internal convex and external concave joints. It should be noted that the up and down mentioned here are defined with the height direction of the building as the reference system.
  • the bottom member is also designed.
  • the bottom surface of the bottom member is made as a blade foot.
  • intersecting steel supports 15 are set between the adjacent horizontal connecting walls, and the gusset plates 14 are pre-embedded at both ends of the transverse connecting walls.
  • the gusset plates 1 are connected, specifically as shown in FIG. 8 , steel supports 15 are arranged crosswise.
  • this embodiment also proposes a component assembly and sinking construction method, including the following steps:

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

本发明提供了一种装配整体式组合拱形截面沉井预制构件及施工方法，包括外侧纵向拱墙、连接外侧纵向拱墙端部的横向连接墙、端部半圆形拱墙，沿着高度方向，在外侧纵向拱墙和半圆形拱墙的两个非拱形面上各设有一个外凸接头，在横向连接墙的两个相对面上设有分叉墙体，在每个分叉墙体上设有内凹接头；位于中间的横向连接墙上的四个内凹接头分别与四个外侧纵向拱墙的外凸接头配合，位于最外侧的横向连接墙的四个内凹接头分别与两个外侧纵向拱墙的外凸接头配合和两个半圆形拱墙的外凸接头配合。

Description

装配整体式组合拱形截面沉井预制构件和施工方法 技术领域
本发明涉及沉井设计以及组装领域，具体涉及一种装配整体式组合拱形截面沉井式地下车库构件接头和施工方法。
背景技术
有序、合理、综合、高效地开发利用既有建筑物地下空间资源，成为扩充基础设施容量，提高城市综合防灾能力，提高土地利用效率与节约土地资源的最为有效的途径之一。新建建筑物根据城市规划的要求，多已考虑了地下空间的开发和利用。然而，大量的既有建筑因为历史的原因，缺少前瞻性而未设计地下停车场等，随着汽车数量的增加出现了停车难。因此，对既有建筑物地下空间的开发是一项艰巨而迫切的任务。
在众多利用沉井施工地下车库的方法中，组合拱形截面的沉井式地下车库(CN 202110174420.1)外侧与土体接触部分全部是拱墙，承受水、土荷载后，构件截面内主要是压力，可不配筋或少配筋。结构造型对称，内力得到平衡，受力合理，构件截面尺寸较小。其整体空间接近于矩形，有利于车位的布局，空间利用率高。
装配整体式混凝土结构具有工业化水平高、便于冬季施工、减少现场湿作业量、减少材料浪费、减少工地扬尘、噪音，从而达到提高建筑质量、提高生产效率、节能减排和保护环境的目的。因此，将组合拱形截面的沉井式地下车库通过预制构件，装配成整体的施工方法更符合现代化产业发展趋势。其中， 构件的接头和组装方法成为装配整体式组合拱形截面沉井施工的关键。
发明内容
本发明的目的是针对组合拱形截面沉井的受力特点，提出一种装配整体式组合拱形截面沉井预制构件和施工方法。
为了实现上述目的，本发明是通过如下的技术方案来实现：
第一方面，本发明的实施例提供了一种装配整体式组合拱形截面沉井预制构件，包括至少一个中部标准单元和端部的半圆形拱墙；
所述的中部标准单元由两道外侧纵向拱墙和连接外侧纵向拱墙端部的横向连接墙组成；所述的外侧纵向拱墙的拱圈朝向土体一侧，在所述的横向连接墙上设有供车辆穿行的门洞；在中部标准单元的两端设置端部半圆形拱墙，拱墙的拱圈也要朝向土体一侧，拱墙的空间设置螺旋形坡道作为车辆上、下楼层的通道；端部半圆形拱墙应从沉井式车库延伸至地面；
沿着高度方向，在外侧纵向拱墙和半圆形拱墙的两个非拱形面上各设有一个外凸接头，在横向连接墙的两个相对面上设有分叉墙体，在每个分叉墙体上设有内凹接头；位于中间的横向连接墙上的四个内凹接头分别与四个外侧纵向拱墙的外凸接头配合，位于最外侧的横向连接墙的四个内凹接头分别与两个外侧纵向拱墙的外凸接头配合和两个半圆形拱墙的外凸接头配合。
作为进一步的技术方案，在外侧纵向拱墙和半圆形拱墙构件两侧接头处底侧设置外伸抗剪键；在横向连接墙两端接头处底端设置内缩抗剪槽，所述的内缩抗剪槽与外伸抗剪键配合。
作为进一步的技术方案，在横向连接墙与外侧纵向拱墙、半圆形拱墙间连接处附近上下设置螺栓，螺栓连接横向连接墙与外侧纵向拱墙、半圆形拱墙。
作为进一步的技术方案，在高度方向，为保证层间构件的可靠性，位于层间的横向连接墙与外侧纵向拱墙、半圆形拱墙的顶面底面也设有相互配合内凹接头和外凸接头。
作为进一步的技术方案，为保证沉井顺利进入土体，底层构件底面制作为刃脚。
作为进一步的技术方案，为保证下沉中预制装配整体式构件位置准确，在底层相邻的横向连接墙之间设置相互交叉的钢支撑。
第二方面，本发明基于上述的构件，还提供了一种施工方法，包括以下步骤：
(1)先在地面位置摆放底层横向连接墙。校正平面位置和垂直度后，将钢支撑与预埋钢板用螺栓或焊接的方式固定。再将外侧纵向拱墙和半圆形拱墙在水平方向拼接，拼接前接头处安装橡胶止水带。
(2)沉井内开挖土方，构件逐步下沉。待该层构件沉入土体后，将上层构件与该层构件在竖向拼装。拼装前接头处安装橡胶止水带。
(3)继续下沉，直至各层构件均达到设计标高。在横向连接墙与外侧纵向拱墙、半圆形拱墙间的开孔内穿入螺栓和螺帽，并将螺帽拧紧。
(4)拆除底层交叉的钢支撑，并将沉井封底。
(5)施工地面以上结构。
与现有技术相比，本申请具有的优点和积极效果是：
(1)本发明设计的拼装接头构造简单，连接可靠。借助水平方向的水、土压力以及竖向构件自重，使得水平和竖向接头更加稳固。
(2)外侧拱墙、半圆形拱墙间与中间横墙间的抗剪连接键保证构件同步下 沉，防止外墙受土体摩擦力影响下沉滞后。
(3)水平接头位于结构弯矩较小或者接近于零的位置，仅设置螺栓连接承受拉、压力即可，不必设置整体性接头承担弯矩。
(4)利用本发明的接头，实现了地下沉井车库的预制装配化施工，提高了构件标准化和工程质量，减少材料堆场以及现场混凝土浇筑作业，节约了人工。
附图说明
构成本发明的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。
图1为组合拱形截面沉井组装前构件外形平面图；
图2为组合拱形截面沉井组装后的整体结构示意图；
图3为纵向外拱墙的主视图；
图4为横向连接墙的侧视图；
图5为横向连接墙与纵向连接墙连接后示意图；
图6为上下两层横向连接墙连接前的示意图；
图7为上下两层横向连接墙连接后的示意图；
图8是带有钢支撑的组合拱形截面沉井组装后的整体结构示意图；
图中：为显示各部位位置而夸大了互相间间距或尺寸，示意图仅作示意使用。
1、纵向外拱墙，2、横向连接墙，3、端部半圆形拱墙，4、外凸接头，5、内凹接头，6、外拱墙内壁开孔，7、横向连接墙端部内壁开孔，8、螺栓连接孔，9、外伸抗剪键，10、内缩抗剪槽，11、连接螺栓，12、上层构件的顶面接头，13上层构件的底面接头，14、预埋节点板，15、钢支撑。
具体实施方式
应该指出，以下详细说明都是例示性的，旨在对本发明提供进一步的说明。除非另有指明，本发明使用的所有技术和科学术语具有与本发明所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本发明的示例性实施方式。如在这里所使用的，除非本发明另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合；
术语解释部分:本实施例中所述的“横向”“纵向”仅表示方位，没有具体的限定作用，以图1所表示的方位为例，前后方向为横向，左右方向为纵向。
正如背景技术所介绍的，申请人基于申请号为CN202110174420.1中公开的组合拱形截面的沉井式地下车库，提出了一种装配整体式车库结构，其中组合拱形截面的沉井式地下车库包括至少一个中部标准单元和端部的半圆形拱墙；中部标准单元由两道外侧纵向拱墙和连接外侧纵向拱墙端部的横向连接墙组成；所述的外侧纵向拱墙的拱圈朝向土体一侧，在所述的横向连接墙上设有供车辆穿行的门洞；在中部标准单元的两端设置端部半圆形拱墙，拱墙的拱圈也要朝向土体一侧，拱墙的空间设置螺旋形坡道作为车辆上、下楼层的通道；端部半圆形拱墙应从沉井式车库延伸至地面。申请人为了达到提高生产效率、节能减排和保护环境的目的，因此，提出了将组合拱形截面的沉井式地下车库设计成预制构件形式，然后再装配成整体结构。
为了达到上述目的，本实施例提出了一种装配整体式组合拱形截面沉井式地下车库构件及施工方法。
实施例1
本实施例提出的一种装配整体式组合拱形截面沉井式地下车库构件，构件单元的设计原则是：在水平方向，每道横向连接墙、两个相邻横向连接墙间的外侧纵向拱墙以及两端每个半圆形拱墙单独作为构件制作单元；在竖向方向，以现有地下车库的层高作为划分制作单元的依据；
具体的，如图1所示，构件主要包括多个横向连接墙2、相邻横向连接墙间的外侧纵向拱墙1以及位于两端的半圆形拱墙3；在图1中，横向连接墙2设置四个，外侧纵向拱墙1包括6个，半圆形拱墙3包括2个；需要说明的是，横向连接墙2以及外侧纵向拱墙1的个数并不限于图1所示的数量，具体根据实际的建筑物地下面积大小进行设置。
其中外侧纵向拱墙1的左右两端制作成外凸接头4，接头伸出部分位于墙体外侧；同时，横向连接墙2的前后两端制作出与相连拱墙弧度相同的左右分叉墙体，在左右分叉墙体的端头制作为内凹接头5，伸出部分位于墙体内侧。半圆形拱墙3的前后两端均制作成外凸接头；各个接头的伸出部分高度相等，厚度均为1/2拱墙墙体厚度。如图3、图4、图5、图6所示，各个接头在对应墙体的侧面，且在高度方向上贯穿整个墙体。考虑到外侧纵向拱墙1和半圆形拱墙3受外侧水土压力作用，外侧纵向拱墙1和半圆形拱墙3的外凸接头能够和横向连接墙2的内凹接头在该压力作用下能紧密连接在一起。
进一步的，由于沉井外侧纵向拱墙1和半圆形拱墙3在下沉过程中受到土体阻力，而横向连接墙2不受该力作用，因此两者仅靠水平接头连接，不能阻止两者错动。为此，在沉井外侧纵向拱墙1和半圆形拱墙3构件两端接头处底侧设置外伸抗剪键，参见图3，在图3中给出了沉井外侧纵向拱墙的结构示意图， 在沉井外侧纵向拱墙的下部的左侧和右侧均设有一个外伸抗剪键9；同时在横向连接墙两端的接头处的下部左侧和右侧也均设有一个内缩抗剪槽10。外伸抗剪键9和内缩抗剪槽10的高度和沿墙体方向的厚度相当。依靠横向连接墙的竖向压力，保证两者紧密连接。
进一步的，为了加强各个预制单元之间的连接，横向连接墙与外侧纵向拱墙、半圆形拱墙间的均采用螺栓连接，具体的，在横向连接墙与外侧纵向拱墙、半圆形拱墙间连接处附近上下设置2组连接螺栓。为安装螺栓，在外侧纵向拱墙或半圆形拱墙内壁开孔6，开孔6水平方向长度大于螺杆长度，开孔6的竖向尺寸大于螺杆直径，以便螺杆的顺利安装。在横向连接墙内壁的开孔7，沿水平方向长度大于螺帽长度，开孔7的竖向尺寸大于螺杆直径，以便螺帽的顺利安装。两者开孔的深度宜在墙体厚度的中央位置，以便螺栓安装后，螺栓拉力不会对构件产生大的偏心作用。螺栓加工长度应大于两者开孔的间距加上螺帽的长度。
进一步的，本实施例还设计了层间连接接头，在竖向，为保证上下层间构件的可靠连接，下层构件顶面接头制作成内凸外凹的形式，上层构件底面接头作成内凹外凸的形式，两者截面尺寸匹配。或者上层构件顶面接头制作成内凸外凹的形式，下层构件底面接头作成内凹外凸的形式；具体参见图6，图6表示的是上下层构件的结构，在下层构件的顶面设置内凹外凸接头的形式，上层构件底面接头作成内凸外凹接头的形式。需要说明的是，此处所述的上下是以建筑物高度方向作为参考系进行的定义。
进一步的，本实施例还对底层构件进行了设计，为保证沉井顺利进入土体，底层构件底面制作为刃脚。另外，为保证下沉中预制装配整体式构件位置准确， 在相邻底层横向连接墙之间设置相互交叉的钢支撑15，在横向连接墙两端预埋节点板14，钢支撑15与预埋节点板1进行连接，具体的如图8所示，钢支撑15交叉设置。
实施例2
基于上述各个构件单元，本实施例还提出了一种构件组装与下沉施工方法，包括以下步骤：
(1)先在地面位置摆放底层横向连接墙。校正平面位置和垂直度后，将钢支撑与预埋钢板用螺栓或焊接的方式固定。再将外侧纵向拱墙和半圆形拱墙在水平方向拼接，拼接前接头处安装橡胶止水带。
(2)沉井内开挖土方，构件逐步下沉。待该层构件沉入土体后，将上层构件与该层构件在竖向拼装。拼装前接头处安装橡胶止水带。
(3)继续下沉，直至各层构件均达到设计标高。在横向连接墙与外侧纵向拱墙、半圆形拱墙间的开孔内穿入螺栓和螺帽，并将螺帽拧紧。
(4)拆除底层交叉的钢支撑，并将沉井封底。
(5)施工地面以上结构。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种装配整体式组合拱形截面沉井预制构件，其特征在于，包括至少一个中部标准单元和端部的半圆形拱墙；中部标准单元由两道外侧纵向拱墙和连接外侧纵向拱墙端部的横向连接墙组成；所述的外侧纵向拱墙的拱圈朝向土体一侧，在横向连接墙上设有供车辆穿行的门洞；在中部标准单元的两端设置端部半圆形拱墙，拱墙的拱圈也要朝向土体一侧；
    其中，沿着高度方向，在外侧纵向拱墙和半圆形拱墙的两个非拱形面上各设有一个外凸接头，在横向连接墙的两个相对面上设有分叉墙体，在每个分叉墙体上设有内凹接头；位于中间的横向连接墙上的四个内凹接头分别与四个外侧纵向拱墙的外凸接头配合，位于最外侧的横向连接墙的四个内凹接头分别与两个外侧纵向拱墙的外凸接头配合和两个半圆形拱墙的外凸接头配合。
  2. 如权利要求1所述的一种装配整体式组合拱形截面沉井预制构件，其特征在于，在外侧纵向拱墙和半圆形拱墙构件两侧接头处底侧设置外伸抗剪键；在横向连接墙两端接头处底端设置内缩抗剪槽，所述的内缩抗剪槽与外伸抗剪键配合。
  3. 如权利要求1所述的一种装配整体式组合拱形截面沉井预制构件，其特征在于，在横向连接墙与外侧纵向拱墙、半圆形拱墙间连接处附近上下设置螺栓，螺栓连接横向连接墙与外侧纵向拱墙、半圆形拱墙。
  4. 如权利要求1所述的一种装配整体式组合拱形截面沉井预制构件，其特征在于，在高度方向，位于层间的横向连接墙与外侧纵向拱墙、半圆形拱墙的顶面底面也设有相互配合内凹接头和外凸接头。
  5. 如权利要求1所述的一种装配整体式组合拱形截面沉井预制构件，其特征在于，底层构件底面制作为刃脚。
  6. 如权利要求1所述的一种装配整体式组合拱形截面沉井预制构件，其特征在于，在底层相邻的横向连接墙之间设置相互交叉的钢支撑。
  7. 如权利要求1所述的一种装配整体式组合拱形截面沉井预制构件，其特征在于，所述的外侧纵向拱墙上的外凸接头在高度方向上，贯穿其整个侧面。
  8. 如权利要求1所述的一种装配整体式组合拱形截面沉井预制构件，其特征在于，所述的横向连接墙上的内凹接头在高度方向上，贯穿其整个侧面。
  9. 如权利要求1所述的一种装配整体式组合拱形截面沉井预制构件，其特征在于，所述的半圆形拱墙上的外凸接头在高度方向上，贯穿其整个侧面。
  10. 如权利1-9任一所述的装配整体式组合拱形截面沉井预制构件的施工方法，其特征在于，包括以下步骤：
    (1)先在地面位置摆放底层横向连接墙，校正平面位置和垂直度后，将钢支撑与预埋钢板用螺栓或焊接的方式固定，再将外侧纵向拱墙和半圆形拱墙在水平方向拼接，拼接前接头处安装橡胶止水带；
    (2)沉井内开挖土方，构件逐步下沉，待该层构件沉入土体后，将上层构件与该层构件在高度方向拼装，拼装前接头处安装橡胶止水带；
    (3)继续下沉，直至各层构件均达到设计标高，在横向连接墙与外侧纵向拱墙、半圆形拱墙间的开孔内穿入螺栓和螺帽，并将螺帽拧紧；
    (4)拆除底层交叉的钢支撑，并将沉井封底；
    (5)施工地面以上结构。
PCT/CN2021/106052 2021-05-12 2021-07-13 装配整体式组合拱形截面沉井预制构件和施工方法 WO2022236954A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992001133A1 (en) * 1990-07-12 1992-01-23 A/S Dansk Spændbeton Multi-storey car park with floors comprising prefabricated slabs
DE19815520A1 (de) * 1998-03-31 1999-10-07 Kesting Fertiggaragen Und Haus Raumzelle in Verlustformbauweise
CN106013053A (zh) * 2016-05-23 2016-10-12 江苏东合南岩土科技股份有限公司 一种用于建造地下车库沉井的钢板桩支护施工方法
CN108589778A (zh) * 2018-04-18 2018-09-28 神翼航空器科技（天津）有限公司 预制装配式沉井及其组装方法
CN108797623A (zh) * 2018-07-09 2018-11-13 中国水利水电第七工程局有限公司 井片、预制装配式沉井及沉井施工方法
CN109098201A (zh) * 2018-10-12 2018-12-28 西南交通大学 一种超大平面面积部分预应力混凝土沉井基础及其施工方法
CN111622251A (zh) * 2020-06-15 2020-09-04 北京中岩智泊科技有限公司 一种装配式沉井结构及其施工方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020517B3 (de) * 2009-05-08 2010-10-21 Herrenknecht Ag Verfahren zum Errichten eines unterirdischen Bauwerks
CN102720381B (zh) * 2012-06-27 2014-06-04 郑治中 一种电梯式地下立体车库井筒及其建造方法
CN105239598A (zh) * 2015-10-21 2016-01-13 嘉库智能停车系统（上海）有限公司 井式全自动立体车库的整体下沉施工方法
CN110565659A (zh) * 2019-08-31 2019-12-13 安徽省交通规划设计研究总院股份有限公司 一种榫卯式预制连锁块拱形护坡

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992001133A1 (en) * 1990-07-12 1992-01-23 A/S Dansk Spændbeton Multi-storey car park with floors comprising prefabricated slabs
DE19815520A1 (de) * 1998-03-31 1999-10-07 Kesting Fertiggaragen Und Haus Raumzelle in Verlustformbauweise
CN106013053A (zh) * 2016-05-23 2016-10-12 江苏东合南岩土科技股份有限公司 一种用于建造地下车库沉井的钢板桩支护施工方法
CN108589778A (zh) * 2018-04-18 2018-09-28 神翼航空器科技（天津）有限公司 预制装配式沉井及其组装方法
CN108797623A (zh) * 2018-07-09 2018-11-13 中国水利水电第七工程局有限公司 井片、预制装配式沉井及沉井施工方法
CN109098201A (zh) * 2018-10-12 2018-12-28 西南交通大学 一种超大平面面积部分预应力混凝土沉井基础及其施工方法
CN111622251A (zh) * 2020-06-15 2020-09-04 北京中岩智泊科技有限公司 一种装配式沉井结构及其施工方法

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