Construction method of cast-in-place platform wall with multi-point tenons
A construction method and platform wall technology, applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve the problems of existing subgrade settlement, large amount of earth excavation, and high construction costs, and reduce structural technical risks and construction risks. , Avoid the effect of large foundation excavation and shorten the construction period
Inactive Publication Date: 2021-02-23
SHENYANG RAILWAY SURVEY DESIGN CONSULTING CO LTD
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Problems solved by technology
In addition, for the north, due to the influence of lower temperature, in order to prevent the frost heave damage of the foundation soil, the foundation burial depth needs to meet the local frost heave depth requirements, so the traditional method is greatly affected by the season, and the excavation volume Large size, strict requirements for backfilling, thick base replacement soil, resulting in longer construction period, higher construction costs, etc.
Even, if the construction is done next to the existing road, it may lead to the safety hazard of the settlement of the existing roadbed
Method used
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[0022] like figure 1 As shown, the construction method of the cast-in-place platform wall with multi-point tenons includes the existing hardened ground 1, which is located within the base plate of the platform wall. The first step: roughen the hardened ground 1. When roughening, pull The texturer leans against the template and proceeds along the direction of the transverse slope. During one process, do not stop in the middle, so that the texture of the napping is smooth, and the depth of the napping is 1~2mm;
[0023] Step 2: According to the on-site stakeout, drill a positioning hole 2 with a diameter of 100mm on the original concrete floor. The position of the positioning hole 2 can be adjusted according to the actual situation of the road surface. Choose a place with less ground damage. The drilling depth is 200mm, ensuring There are only two circular holes per linear meter along the route, at least two positioning circular holes 2 per linear meter, and the distance between...
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The invention relates to a construction method of a cast-in-place platform wall with multi-point tenons. The construction method comprises the following steps: roughening a hardened ground; lofting according to the field; inserting and binding steel bars; filling and integrally pouring with a platform wall above the ground; backfilling non-frost-heaving medium sand or coarse sand; arranging expansion joints on the platform wall ; and arranging drain holes in the lower portion of the platform wall. By adopting the method that the additional point type ribbed tenons of the platform wall bottom plate are implanted into the hardened ground of the existing goods yard, large foundation excavation is avoided, the influence of platform wall construction on a line roadbed is reduced, the influenceon an existing line roadbed is reduced, the construction period is shortened, and the construction cost is reduced.
Description
technical field [0001] The invention relates to a construction method for a cast-in-place platform wall with a multi-point tenon, belonging to the field of civil engineering construction. Background technique [0002] With the deepening of reform and opening up and the adjustment of the economic and industrial structure, transportation companies have shown unprecedented vitality, and various transportation methods have developed rapidly, which has led to great changes in the market demand for cargo transportation. [0003] As a necessary engineering facility for railway freight yards, the platform wall is generally close to the railway line, so it is the most "time-consuming and labor-intensive" project in the transformation of the freight yard. How to minimize the investment in the transformation process and make full use of the existing conditions, To promote a more rational allocation of resources, innovative structural design is particularly important. [0004] The trad...
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IPC IPC(8): E01F1/00E02D29/02E02D29/16
CPCE01F1/00E02D29/0275E02D29/16E02D2250/0023E02D2300/002E02D2300/0029
Inventor 赵金刚刘志刚刘纲赵展吴晓琪李晨
Owner SHENYANG RAILWAY SURVEY DESIGN CONSULTING CO LTD