Diaphragm wall joint flexible water stop installing device and method

A technology of underground diaphragm wall and installation device, which is applied in water conservancy projects, underwater structures, artificial islands, etc., can solve the problems of increased cost, low rigidity, long time interval, etc. The effect of joint connection, easy installation and removal

Inactive Publication Date: 2010-05-12
GUANGDONG FOUND ENG GRP CO LTD +1
0 Cites 21 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0003] There are three types of joints commonly used in China: one is the circular joint pipe process, which is used in various parts of the country and has the longest use time and mature technology. However, due to the influence of various factors, the water-stop effect is not generally recognized. Its The use process is to put the two ends or one end of the groove section before clearing the hole in the groove section, and after pouring the concrete and initial setting, use a pipe puller or a super-large crane to pull up the joint pipe; the second method is used in the Guangdong area I-steel joint technology, that is, steel plates of a certain thickness are welded into an I-shape similar to the steel cage of the continuous wall, and placed symmetrically at both ends of the first-stage slot joint, and the second-stage slot must be on the adjacent side of the two sides. Construction can only be carried out after the completion of the slotted concrete. This method has the disadvantages of concrete bypass, one joint seepage channel becomes two, high cost, waste of materials, and the water stop is still not ideal, and it is not a green construction method. Its The process is to weld steel plates into I-shaped welded I-beams, fix the secondary I-beams on both sides of the reinforcement cage of the underground diaphragm wall, and hoist them together with the reinforcement cages into the groove section with a large crane, and then pour the underwater concrete Finally, the I-beam is left on the joint of the groove section; the third is the construction process of the cross steel plate constructed in the Shanghai area, which is complicated and costly. Compared with the circular pipe joint, the concrete joint is not a semicircle but a vertical On the joint plane of the continuous wall axis, in the middle of the joint plane, vertically place a steel plate for water-stop function perpendicular to this plane. Before pouring concrete, put the water-stop steel plate and the joint box together on the joint of the groove section. The joint box is equipped with The inflatable pipe to prevent the concrete from flowing around. After the underwater...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Abstract

The invention relates to a diaphragm wall joint flexible water stop installing device and a method. The installing device is a connector pipe structure made of steel plates or profile steel with width-thickness ratio being close to 1, at least one mounting groove capable of installing a rubber water stop is arranged on one side of the installing device in contact with concrete, and the width at an opening of the mounting groove is slightly smaller than that of a groove cavity. Since the width-thickness ratio of the connector pipe is close to 1, one side of the connector pipe in contact with soil is closely stuck with a soil layer, no phenomenon of flow around exists during the concrete pouring process, the subsequent construction of the groove section is greatly facilitated, and the installing device and the installing method have the advantages of the round pipe connector and overcome the defects of the I-shaped steel connector; the installation and the disassembly are convenient; the connection of the connector pipes is reliable, and the installing device and the installing method have sufficient rigidity, further meet the requirements for deformation resistance and connection and provide convenience for lifting the connector pipe; and the installed rubber water stop has good effect, does not drop off, can be completely retained on a concrete interface, and can well be adapted for the deformation caused by long-term dynamic load in the soft soil strata and prevent the seam from leaking due to misplacement.

Application Domain

Technology Topic

Steel platesSlurry wall +1

Image

  • Diaphragm wall joint flexible water stop installing device and method
  • Diaphragm wall joint flexible water stop installing device and method
  • Diaphragm wall joint flexible water stop installing device and method

Examples

  • Experimental program(1)

Example Embodiment

[0021] Such as Figure 1 ~ Figure 5 As shown, the device and method for installing a flexible waterstop of an underground continuous wall joint according to the present invention is a joint pipe structure 1 made of steel plate or section steel with a width to thickness ratio close to 1. At least one installation groove 11 in which the rubber waterstop 2 can be installed is provided on the side in contact with the concrete, and the width of the opening of the installation groove is slightly smaller than the width of the groove cavity. Among them, in order to ensure convenient transportation, the length of the joint pipe structure 1 is consistent with the length that can be transported by the truck, and the two ends of each joint pipe structure are provided with corresponding fast-rotating bayonet connection structures 12; for the convenience of on-site construction and Disassemble and assemble each joint pipe structure. The two ends of the joint pipe structure 1 are provided with corresponding positioning screw holes 13 and positioning bolt holes 14 near the quick-rotating bayonet connection structure 12, and each joint pipe structure 1 is along its length Positioning slots 15 for connecting the pipe puller are provided at intervals in the direction to ensure that the joint pipe can be easily taken out by the pipe puller after the concrete has solidified; at the same time, the joint pipe structure 1 is along its length The guide wall positioning holes 16 are provided at regular intervals in the direction; the shape of the above-mentioned joint pipe structure 1 is a circle or a square or a polygon or a circle and a square or a circle and a polygon consistent with the shape of the hole formed in the underground continuous wall The combined composite shape enables the entire joint pipe to be quickly and reliably placed in the groove section of the concrete to be poured.
[0022] The installation and construction method of the underground continuous wall joint flexible waterstop of the present invention includes the following steps:
[0023] (1) According to the shape of the hole in the underground continuous wall, the joint pipe structure 1 shape corresponding to the hole shape is made of steel plate or section steel. The round or polygonal installer is used for the round end face, and the square end face can be installed squarely. And set a certain distance along the height direction of the joint pipe structure 1 positioning slot, and the length of the joint pipe structure is controlled in the length that the truck can transport, and the two ends of each joint pipe structure 1 are provided with fast rotating cards Port connection structure, the side surface of the joint pipe structure 1 in contact with the concrete is provided with an installation groove 11 for installing a flexible waterstop such as rubber;
[0024] (2) Assemble and connect each joint pipe structure 1 into a whole at the construction site. The assembled installer is required to be straight and not bend to reach the length required for the construction of the underground continuous wall and make the installation slot 11 of each joint pipe structure 1 correspond In the same straight line, apply butter in the installation groove 11, insert a long rubber and other flexible waterstop 2 into the installation groove 11 and install and fix it;
[0025] (3) Put the joint pipe structure with rubber and other flexible waterstop 2 into the construction trough section where concrete needs to be poured, clean the holes, install the steel bar and pour the concrete, after the concrete is set, use the pipe puller to intermittently Pull out the joint pipe structure as a whole to loosen it until all the concrete has initially set, use a crane to pull up the joint pipe structure as a whole and hoist it to the ground.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Similar technology patents

Classification and recommendation of technical efficacy words

  • Easy to install and remove
  • Reliable connection
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products