How to deal with culvert settlement after settlement, and the settlement joint of culvert introducti

In general, only to dig up and redo it, which is not polite to say! If the highway and house are built better, you can observe a section, how much it sinks, and whether it will be stable; High-speed rail is resolutely not working!

It's just that before construction, the foundation must be dealt with before entering the next process! In particular, water is the biggest bane!

Things have appeared, you can't be in a hurry, it's useless to be anxious, you can only seriously sum up the lessons, manage the migrant workers, rectify it, and start again, it's not a big thing, if it's a tunnel, then it's troublesome, don't want a bonus! Ha ha!

The settlement joint of the culvert is a vertical joint set to prevent the destruction of the house caused by the uneven settlement of each part of the building. When the height, load and structural form of the adjacent parts of the house are very different and the foundation is weak, the house may produce uneven settlement, resulting in cracks in some weak parts. To this end, the settlement joints of the culvert should be set at appropriate locations such as complex plane or body shape turns, height changes, loads, compressibility of the foundation and the method of foundation treatment are obviously different.

The construction of the settlement joint of the culvert requires that the structures on both sides of the joint can settle freely, and can strictly prevent water leakage, so the settlement joint of the culvert must run through the entire section (including the foundation). The specific construction method of the settlement joint of the culvert is as follows:

Foundation section. The asphalt wood board or asphalt sand board embedded in the original foundation construction can be left behind for waterproofing purposes. If the foundation is not constructed with wooden boards, it can also be filled with clay and tamped, and the socks are filled with 1:3 cement mortar at the edge of the flowing water, with a depth of about 15cm.

Covered part. The outside of the joint is filled with hemp bars impregnated with hot asphalt with a depth of about 5cm, and the inside is filled with 1:3 cement mortar with a depth of about 15cm, depending on the thickness of the masonry at the settlement joint of the culvert.

The seam can be filled with asphalt hemp tendons and cement mortar; If it is too thick, the middle part can also be filled with clay first.

Construction quality requirements for settlement joints of culverts.

The end face of the settlement joint of the culvert should be neat and square, the foundation and the culvert should not be staggered, should be penetrated, and the impacted material should be tightly filled.

Protective layer. Above the foundation placket of all kinds of masonry foundation culverts, a clay protective layer is set around the settlement joints of the culvert, with a thickness of about 20cm and a top width of about 20cm. For the non-masonry foundation culvert, the protective layer should be asphalt concrete or asphalt mortar, with a thickness of 10-20cm.

First, the purpose of the settlement joint setting culvert channel is to prevent the uneven subsidence of the culvert load and the bearing capacity of the foundation, resulting in irregular cracks, and the destruction of the culvert channel.

2. Preparation for construction.

1. Technical preparation: Familiar with the drawings and settlement joint construction quality standards and operating procedures.

2. Preparation of materials.

The variety, specification and performance of the raw materials used in the settlement joint must meet the design requirements.

The location, size, construction form and installation of the waterstop must meet the design requirements.

The caulking material should be elastic, impermeable, and durable, and should be continuously packed and compact.

3. Operating conditions.

Settlement joints are reserved for planning before foundation construction.

Clean the soil and mud in the joint before filling the settling joint.

On-site construction materials and personnel are well prepared.

3. Settlement joint construction and related requirements.

1. The position of the settlement joint must be set according to the design position between each culvert foundation, between the culvert foundation and the wing wall foundation, between the discharge bed and the wing wall foundation, between the culvert body and the wing wall, and between the culvert body and the wing wall, and the seam width is 2cm.

2. Packing material: Asphalt wood board (thickness 2cm) should be used as the packing material

3. The position of the settlement joint of the foundation settlement joint construction is lofted in advance, and the reserved embedding position is determined, and the asphalt wood board (plastic foam board) is placed accurately before pouring concrete, and the placement must be vertical and firm.

4. The position of the culvert settlement joint construction culvert body settlement joint is set vertically, up and down and through the foundation sub-plate, and the pole vertical line or direct acacia is used to locate the asphalt plank at both ends of the foundation settlement joint before construction.

5. In order to prevent water seepage in the settlement joint, after the concrete strength of the structure reaches the design strength, the inner and outer settlement joints should be filled and compacted, and the soil, slurry and other debris in the joint should be cleaned up before treatment to keep it dry.

When the joint is made of hot asphalt to invade the board caulking, the inner and outer sides of the settlement joint are cut out to a depth of not less than 5cm according to the width of the joint. The inner side is filled with 1:3 cement mortar, and the outer side (with the subgrade filling surface) is filled with asphalt hemp wadding, with a depth of not less than 5cm.

When the plastic foam board is used in the seam, clean the foam board in the seam before packing. The inner side is filled with 1:3 cement mortar, the treatment depth is about 15cm, the outer side (with the subgrade filling surface) is filled with asphalt wadding, the depth is not less than 5cm, and the middle part can be filled with asphalt wadding or cement mortar.

The inner side of the settlement joint is made into a concave joint, the depth of the joint is about 5mm, and the surface of the asphalt wadding on the outside (with the subgrade filling surface) is evenly coated with asphalt oil.

If there are special requirements for waterproofing or the construction drawing design requires the installation of waterstops, the waterstops shall be installed in accordance with the requirements.

Summary. <>

Hello dear! Yes, grouting lifting construction is a commonly used culvert settlement repair technology, which can effectively alleviate the local settlement of culverts.

Can the local settlement of the culvert be grouting and lifting construction?

We have three culverts that have been partially settled, with a settlement height of 8 cm, can they be lifted by grouting?

Smile imitation good] <>

Hello dear! Yes, grouting lifting construction preparation bucket lead is a commonly used culvert settlement repair technology, which can effectively alleviate the local sinking of culverts.

Is it possible to lift the sedimentation site?

Hello dear! OK.

What materials are needed?

How should it be constructed?

Hello dear! Yes, the hidden bridge grouting stove bridge jerk lifting is a commonly used lifting technology, which can effectively lift the local settlement of the culvert, and the lifting height can be eliminated to reach more than 8 cm.

What is the construction process?

It can be lifted by grouting, and the imitation construction process is as follows: 1Clean the culvert, remove the debris in the culvert, and discharge the sewage in the culvert; 2.

Inspect the culvert, determine the lifting height of the culvert, and determine the position of the lifting; 3.Inject high-strength grouting material into the lifting position to lift the culvert; 4.Check the culvert after lifting to ensure the lifting effect; 5.

Protect the culvert after it has been lifted to prevent the culvert from settling again.

The purpose of setting settlement joints in the structure is to avoid the uneven settlement of the structure due to uneven load or foundation bearing capacity, resulting in irregular cracks in many places, and causing the structure to be damaged. After the settlement joint is arranged, the cracks in the structure can be limited to occur neatly and in a fixed position, and the settlement joint can be treated in advance; If there is uneven settlement, it will be limited to the settlement joint, which is conducive to the safety, stability and seepage prevention of the structure (to prevent the water flow in the pipe from seeping into the culvert base or roadbed, resulting in soft soil soaking).

The position and direction of the settlement joint must be provided at the junction of the culvert body, the hole body and the end wall, the wing wall, and the inlet and outlet rapids groove, but the round pipe culvert without masonry foundation is only provided with the settlement joint at the junction, and the scope of the cave body is not set. The exact location depends on the structure and the condition of the foundation soil.

Settlement joints in the cave body.

Generally, 1 place is set every 4-6m, but no foundation culvert is only set between the culvert of the hole body and the culvert of the outlet, and the width of the seam is generally 3cmThere is also one connection between each end and the ancillary project.

Other settlement joints.

Where the soil quality of the foundation changes, the depth of foundation embedding is not.

First, the load of the foundation to the foundation changes greatly, the foundation filling and excavation junction, the use of rock filling to raise the foundation junction, should be provided with settlement joints.

Culverts on rocky foundations.

Where the culvert is placed on the rock foundation, there is no settlement joint.

Diagonal culverts. The diagonal culvert opening is being made, and its settlement joint should be perpendicular to the center line of the culvert; The diagonal culvert opening is obliquely made, and the settlement joint is parallel to the center line of the roadbed; However, the settlement joints of arch culverts and pipe culverts are all perpendicular to the axis of the culvert.

Summary. Hello dear! I've found the answer for you and I'm back, and here's how it is:

The local settlement of the culvert can be repaired by grouting lifting construction. Grouting is a commonly used method of reinforcement in civil engineering, which improves the bearing capacity and stability of a structure by injecting a certain amount of slurry into the soil or rock to fill the voids. In the case of local settlement of the culvert, it can be repaired by grouting and lifting.

Hello Qi, dear! I've found the answer for you, and the correct solution is as follows: the local settlement of the culvert can be repaired by holding the grouting and lifting construction late.

Grouting is a commonly used method of reinforcement in civil engineering, in which a certain amount of slurry is injected into the soil or rock to fill the voids, thereby improving the bearing capacity and stability of the structure. In the case of local settlement of the culvert, it can be repaired by grouting and lifting.

Basis: The local settlement of the culvert can be repaired by grouting and lifting construction. Culvert is a common civil engineering structure, due to long-term groundwater seepage, foundation settlement and other factors, the phenomenon of local settlement may occur, resulting in the structure of culvert type reputation damage and the use of function is affected.

The local settlement of the culvert can be repaired by the method of grouting and lifting.

Dear, please describe the specific situation, and I will conduct a comprehensive analysis for you<><