Construction of the tunnel comes with many complex engineering problems. The typical reinforced concrete membrane, called the mud wall, is in the underground structures such as pits used. If they build the Schlammw walls comes, care should be applied as there is probabilities, so that W? Nde w while the building once? Rzen. Most construction professionals come with these types of complicated engineering problems w while the underground construction work. You simply hold on to read the article to find out more over the 3 general Tiefbau L problems and their solutions to know. 1. The mud wallsThe main purpose of the mud wall, the flow of groundwater to prevent or umzuadressieren. This Schlammw walls are f? R underground structures near Schuttabladepl? Tzen of Sonderm? LLS indispensable. For example The construction of dams on the Schuttabladepl? tzen the Sonderm? LLS close and therefore it is necessary, the flow of polluted water for Verdammungswasser be effectively stopped. Most of the construction professionals face difficult problems when constructing the Schlammw walls. One of the main problems is that these Schlammw walls easily once? Rzen if they are not properly established. The preservation of a large mud wall en h? NGT after mixing of the sludge from. Any difficulties encountered in the construction of the Schlammw walls were involved, could the use of modern special equipment? Vices f? R the construction of the tunnel? Berwunden be. 2. Soil is GrundImprovementCompact f? R strong Geb? Udegrundlagen very much essential. However varies the texture of the soil from place to place. Consequently, it is necessary to do the f? R the manufacture of the processed soil contract before construction begins. Today with the Zuf? Currencies in the technology, rubbing several improvement techniques are available. The deep soil mixing is the best L? Sung f? R joining the ground. Although there is some other ground improvement techniques, there is no other technology as effectively as the deep soil mixing. After the deep soil mixing the soil is so compact as concrete. This gew? Leads large e Bottom? Support the basis of the fee? Ude. The deep soil mixing is done by dividing the portfolio into the ground while pumping the solution and soil with a mixing device, normally on a excavator is applied. The commonly used folders f? R the deep soil mixing are of lime fly ash / of quick lime, and mud. 3. The Franzoseabflu? To the ground water Ground water can cause a umzuadressieren Geb? Ude sch? Dlich, if it penetrates the basement. The Geb? Ude st? RZT even if the groundwater in the basement w while one lost? Ngerten period flying? S leave. Consequently, groundwater diversion f? R effective structure is much important. The French? French drain is one of the best elections, f? R diversion of groundwater are available. The French? French Abfl? Sse the F? Ness of the discharge pressure of the groundwater near the St? Tzmauern. The lower LineThe engineering problems that are related to construction, are very difficult. Consequently, it is always good, Berufsunterst? Support by some experts to look for structure.